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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GB-1605287-A
|
GB-381466-A
|
GB
|
A
|
A
| null | 1967-04-27
| null |
G01S11/12
|
QUARTLEY A L
|
Passive rangefinders
|
en
| null | null |
GB-455190-A
|
GB-385036-A
|
GB
|
A
|
A
| 9766-10-03
| 1935-01-07
| null |
H01F21/08
| null |
Method of regulating radio sets and the like
|
en
|
455,190. Transformers. KRAMOLIN, L. L. DE, Gross-Glienicke, Kladow, Berlin. Jan. 7, 1935, No. 3850/36. Divided out of 449,240. [Class 38 (ii)] [See also Group XL] Relates to the construction of inductances and transformers for use in high frequency circuits, the inductance or coupling of which may be varied by varying the saturation of their low permeability iron cores. The variable inductances may comprise coils 3, Fig. 1, wound on the outer limbs of a core 4 clamped between the adjustable pole-pieces N, S of an electromagnet 1, 2 provided to enable the saturation of the core to be varied. In another construction, Fig. 2, the inductance of the coil 13 may be varied in opposite directions by currents of opposite direction in the coils 12 on the horseshoe core 10 which also carries coils 11 passing a steady current. An alternative form of polepiece is shown in Fig. 3 for use with an inductance having a fourlimbed core. The coupling between two inductances I, II, Fig. 4, which are decoupled by their disposition on a three-limbed core may be varied by varying the distribution of a steady flux in the core by an electromagnet 40, the two poles 41, 42 of which carry a coil 45 with a steady magnetizing current while the poles 43, 44 carry separate windings 46, 47 wound in opposite directions and fed with the same controlling current. In another arrangement, Fig. 5, the coils are wound on an asymmetric core, the regulating current being passed through the controlling electromagnet 51. Reference has been directed by the Comptroller to Specifications 426,347, 436,482, and 442,392, [all in Group XL].
|
en
|
GB-434657-A
|
GB-386434-A
|
GB
|
A
|
A
| null | 1934-02-06
| null |
F02D1/00
| null |
Improved method and means of controlling multi-cylinder internal combustion engines
|
en
|
434,657. Regulating. HESSELMAN MOTOR CORPORATION, Ltd., 56, Kingsway, London. Feb. 6, 1934, No. 3864. Convention date, Feb. 6, 1933. [Class 7 (vi)] [See also Groups XXVIII and XXXVII] In multicylinder engines of the airless fuelinjection type operating with throttling of the air supply, one or more cylinders are cut out at reduced loads by means of the vacuum in the induction pipe, to facilitate obtaining proper proportions of fuel and air under these conditions. Fig. 1 shows an engine with an air throttle 20 and fuel pumps B having their plungers 30 actuated by cam-operated tappets 54, one or more of the pumps being cut out of action, when the throttle 20 is nearly closed, by a solenoid 106 rotating a sleeve 80 so as to move the appropriate pump plungers out of the range of their tappets. The solenoid is actuated by a contact 112 carried by a diaphragm 116 so as to be drawn down into engagement with a fixed contact 104 by the vacuum in the air-inlet passage 14. The sleeves 80 are provided only in connection with those cylinders which are to be cut out, this being effected by contact of a gap in the sleeve 80 with a collar 68, Fig. 3, which lifts the fuelpump plunger 30 out of the range of the tappet 54. The stroke of the fuel pumps is adjusted by similar sleeves 64, which also act on the collars 68 when operated by suction-actuated pistons 90. Chattering of the contact 112 may be prevented by causing the diaphragm 116 to seat in its uppermost position against a flange 126, the space within which is open to the passage 14. In modifications, the contact 112 may be actuated directly from the throttle spindle, or a purely mechanical lost-motion connection may be arranged between the throttle valve and the sleeves 80 which cut out the fuel pumps. The invention may be applied to engines operating as described in Specifications 282,731, [Class 7 (iii)], and 282,735, [Class 7 (vi)].
|
en
|
GB-233447-A
|
GB-390724-A
|
GB
|
A
|
A
| 9767-11-04
| 1924-02-15
| null |
H01Q1/48
| null |
An earthing switch for wireless aerials
|
en
|
233,447. London, A. G. Feb. 15, 1924. Grounding aerials.-A combined earthing- switch and lead-in tube for wireless aerials comprises a threaded insulating tube A secured by nuts B, C on either side of a window or like frame W. A conducting rod D sliding through the tube A has the aerial wine G secured to its outer end F and a wire K leading to the set secured to its inner end H, thus providing a permanent through connection from the aerial to the set. When, however, the rod D is pulled to the left, spring claws L attached to the rod clip over the edges of the nut C and thus provide a direct earth connection for the aerial via claws L, nut C and wire M. A wire may connect the nuts B, C so that the nut B can be used as the earth terminal of the set.
|
en
|
GB-456243-A
|
GB-393436-A
|
GB
|
A
|
A
| null | 1936-02-08
| null |
H01J13/48
| null |
Improvements in or relating to single phase mercury vapour rectifier valves
|
en
|
456,243. Mercury - vapour rectifiers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 8, 1936, No. 3934. Convention date, March 30, 1935. [Class 39 (i)] A single-phase rectifier comprises a cylindrical container, which consists of a lower metal part, containing the mercury cathode, and an upper glass part sealed thereto, igniting and maintaining anodes located immediately above the cathode and a main anode arranged above the auxiliary anodes in such manner that its axis is parallel to that of the container wherein the seals between the glass and metal parts are separated from the discharge space by screens or by the construction of the container. A metal part 1, Fig. 1, is provided with a water jacket 2 and is sealed to a glass part 6 provided with leading-in wires 27 for the auxiliary anodes 12, 13 and with a joint 7 for the leading- in wire to the main anode 11. An insulating tube 10 on the anode stem 8 supports a member 14 to which is clamped the conducting support 15 of the immovable maintaining anode 12. An insulating tube 16 surrounds the conductor 15. The movable ignition anode 13 is supported from an iron armature 22 through the conducting member 18 which is adapted to slide within an insulating tube 19 clamped to the support 14. Recesses in the anode house the auxiliary anode supports. A magnet 25, supported on the member 14, is adapted upon energization of the winding 24 on the tube to attract the armature 22 and withdraw the electrode 13 from the mercury to ignite the arc. The joints are screened from the discharge by members 29, 30 in which holes 32 are provided to facilitate the return of condensate to the cathode. Members 26 screen the conductors 27 from the discharge. Three of the valves shown in Fig. 1 are connected to a three-phase supply as shown in Fig. 2. Auxiliary secondary windings 40 are connected at their ends through chokes 42 and magnet coils 44, 45 respectively to the maintaining and ignition anodes 12, 13 and through a centre tapping to the cathodes 17. When connected to a three-phase supply, the coil 45 is energized, due to the contact between the electrode 13 and the cathode, to lift the electrode 13 to ignite the arc. Maintaining arcs are then struck to the anodes 12, 13 and the discharge currents energize the coils 44, 45 to maintain the electrode 13 in its raised position. In another form, a hollow anode 50, Fig. 3, is screwed to a metal member 54 which is sealed to glass portions 51, 59 of the container and constitutes the anode terminal. An insulating member 56 is clamped between the anode and the member 54 through a metal ring and, with the insulating member 57, screens the joints from the discharge. A conical polepiece 73 is clamped to the pinch and is adapted to attract a conical armature to which anodes 67 are secured through eyelets and metal studs surrounded by metal and insulating bushes. An auxiliary anode 64 is connected to a metal tube 62 which is surrounded by an insulating tube 63 and slidingly contacts with the leading- in wire 61. The tube 63 is rigidly secured through members 68 to the tubes 65 so that all the auxiliary anodes move together. A fullwave rectifying circuit, comprises two valves shown in Fig. 3 and a main secondary winding 83, Fig. 4, connected to the anodes 50. A secondary winding 84 is connected at its ends to the anodes 67 and a centre tapping thereon is connected through the magnet coils 78 to the cathode. An auxiliary rectifier 88, energized by a winding 85, is connected in such manner that the magnet coils are energized when the electrode 64 is immersed in the cathode. All of the electrodes are lifted by the magnet and the auxiliary electrodes strike maintaining arcs, the discharge currents of which flow through the magnet coils to maintain the electrodes in their raised position. The voltage produced by the auxiliary rectifier need not be equal to the voltage necessary for striking the arc and the load thereon ceases when the electrode 64 is raised. In another form, maintaining anodes 111, Fig. 5, a starting incandescent cathode 108 and an auxiliary anode 105 are supported from the pinch by conductors mounted in insulating tubes and passing through a hollow main anode 94. An insulating disc 112 is housed within the main anode and is supported on the anode 105 through insulating tubes 113, 115 and the cylindrical metal, carbon or insulating screen 114 which dips into the mercury and is provided with discharge slots. The distance between the main anode and the container is less than the mean free path of the electrons to screen the joint from the discharge. A full-wave rectifying circuit embodying valves shown in Fig. 5 comprises a secondary winding 119, Fig. 6, connected to the main anodes, heater windings 122 for the cathodes and windings 121 connected to the auxiliary anodes through chokes 123. The auxiliary anodes 105 are connected through resistances 126 to the main anodes. The centre tappings on the heater windings are connected to the main cathodes through resistances across which are developed potentials which impose a negative bias on the screens 114 with respect to the incandescent cathodes 108 to form cathode spots on the mercury cathodes externally of the screens. A source of current may replace the resistances and a switch may be provided to disconnect, preferably automatically, the incandescent cathodes after ignition. Specification 192,673, [Class 39 (i)], is referred to.
|
en
|
GB-687037-A
|
GB-402951-A
|
GB
|
A
|
A
| null | 1951-02-19
| null |
G03B21/43
| null |
Improvements in or relating to film footage counters for cinematograph cameras
|
en
|
687,037. Kinematograph cameras. BOLSEY, J. Feb. 19, 1951, No. 4029/51. Class 97 (i). A footage counter makes a mark on the side of the magazine during the film run to indicate the length of film exposed. In the form shown, a pin 18 carried on the spring drum 16 of the driving motor, strikes the pivoted lever 19 once each revolution and a pawl 22 pivoted on the lever moves forward the ratchet wheel 23 on the shaft 24. The shaft carries at one end, outside the camera casing, a dial, and at the other, in the film magazine compartment, a disc carrying an eccentrically mounted marking member, e.g. of graphite, which makes an arcuate mark on the wall of the film magazine. The mark is concentric with a scale on the magazine wall. The disc is spring-urged outwardly on the shaft to maintain contact between the marking member and the magazine wall. Means may be provided to return the counting mechanism to its initial position when the magazine is removed.
|
en
|
GB-574445-A
|
GB-403541-A
|
GB
|
A
|
A
| null | 1941-03-25
| null |
C10M137/10
| null |
Improvements in or relating to lubricating compositions
|
en
|
A lubricating composition comprises a lubricating oil base in which there is dispersed as a non-corrosive extreme pressure agent a small proportion of an organic compound consisting of a phosphite or thiophosphite ester derived from an aromatic hydroxy-substituted thioether, disulphide or polysulphide by reaction with phosphorus trichloride and a phenol, alcohol, thiophenol or thioalcohol or with a mixture of such compounds. Examples of addition agents are di(3 - carbomethoxy - 4 - hydroxyphenyl) thioether, butyl, phenyl, o-cresyl tertiary butyl, salicyl and tertiary butyl cresylphosphite, p-p1-dihydroxydiphenyl thioether phenyl and oleyl phosphite, pp1-dihydroxydiphenyl thioether p-cresyl thiophosphite, di(3-tertiary amyl-6-hydroxyphenyl) disulphide cyclohexyl and 2-ethyl hexyl phosphite, di(3-tertiary butyl-6-hydroxyphenyl) tetrasulphide o-chlorophenyl phosphite, and di(2-methyl-4-hydroxyphenyl) thioether amyl phosphite. A sample of o-nitrophenyl-4-hydroxy-m-tolyl thioether di - (3 - carbomethoxy - 4 - hydroxyphenyl) - thioether phosphite has been filed under Section 2 (5). It is made by the action of PCl3 on o - nitrophenyl - 4 - hydroxy - m - tolyl thioether followed by refluxing with di-(3-carbomethoxy-4-hydroxyphenyl) thioether.
|
en
|
GB-833625-A
|
GB-407155-A
|
GB
|
A
|
A
| null | 1955-02-10
| null |
H02G15/196
|
DRYSDALE JOHN
|
Improvements in or relating to the joining of electrical conductors
|
en
|
833,625. Cable joints; cables. HENLEYS TELEGRAPH WORKS CO. Ltd., W. T. Feb. 10, 1956 [Feb. 10, 1955], No. 4071/56. Classes 36 and 38 (1). In a method of joining two P.V.C. insulated conductors, the insulation of each conductor is pared down so as to expose two lengths of conductor which are then joined. P.V.C. tape which has been smeared with P.V.C. paste is then lapped on the joint and secured in position, the joint being finally heated so as to gel the paste. A separating layer of, for example, oiled silk may be applied over the joined conductors prior to lapping on the tape. According to the Provisional Specification the method may be used for the application of an anti-corrosion covering for metal-sheathed cables.
|
en
|
GB-834733-A
|
GB-415458-A
|
GB
|
A
|
A
| null | 1958-02-07
| null |
C08F291/18
| null |
Improvements in or relating to photopolymerisable elements and their use
|
en
|
834,733. Photosensitive element and process for preparing printing relief images. DU PONT DE NEMOURS & CO., E. I. Feb. 7, 1958 [Feb. 18, 1957], No. 4154/58. Class 98(2) A support carries a layer of an addition polymerizable ethylenically unsaturated component containing a photopolymerization initiator therefor, with the latter in higher concentration in a lower stratum next to the support than in an upper stratum which is not more than half of the total thickness of the layer; and this may be exposed as with divergent beams under a negative, which may have been made with use of a half-tone screen of 150 lines per inch, to polymerize the exposed areas to the insoluble state, after which removal of the unexposed unpolymerized portions produces reliefs broader at the base than the surface with, maybe, sides having a greater degree of taper at the lower parts than the upper. Materials for forming the layer are generally similar to those disclosed in Specifications 741,294, 741,441 and 741,470. Details are illustrated in seven examples which include considerable quality comparisons of procedure with various proportions and manners of introduction of the initiator and the effect of absence of this, thus in Example 1 an aluminium plate is provided with a specified antihalation layer and then a specified methacrylate type anchor layer which is polymerized to a hard resin by ultraviolet light, benzoin methyl ether in acetone solution as the initiator is then painted on to the anchor layer, dried and followed by a 30-mil viscous layer of 3/1 polypropylene glycol phthalate/maleate in styrene: a process negative is then laid down on to the still viscous polymer layer and exposed from a bank of twenty 30-watt fluorescent tubes for 10 or 12 minutes after which the unexposed areas are removed by brushing in acetone for two minutes to show printing characters with broad and firmly attached bases, while in absence of the benzoin methyl ether initiator the attachment is inadequate. Examples IIIV are similar, and Examples V-VII describe separate production of two superimposed layers on the support, which layers are mainly of cellulose esters with a proportion of triethylene glycol diacrylate and usually benzoin as initiator, the lower layer having 5 or 10 times the proportion of benzoin of the upper. Aqueous ammonia is used in some instances to remove unexposed material.
|
en
|
GB-260826-A
|
GB-420626-A
|
GB
|
A
|
A
| null | 1926-02-13
| null |
E06B3/677
| null |
An improved transparent screen of glass or the like material and method of manufacturing the same
|
en
|
260,826. Peters, J. A. Feb. 13, 1926. Windows, preventing condensation on. - To prevent moisture or ice collecting on windows, screens &c., these are made of two sheets of glass or other transparent material enclosing a space which is partially exhausted. The sheets are thus held by external pressure against an intervening elastic frame. Wires adapted to be heated electrically may be mounted between the sheets. The space between the sheets may be partially exhausted by burning alcohol on one plate prior to placing the second thereon, or by an air pump and tube passing through the elastic frame, or the frame may be composed of an endless tube which, when the sheets are in position, is inflated to rarefy the space by separating the sheets.
|
en
|
GB-889319-A
|
GB-423060-A
|
GB
|
A
|
A
| null | 1960-02-05
| null |
G21F7/06
| null |
Improvements in and relating to electrical remote control apparatus
|
en
|
889,319. Electric correspondence control systems. ZAKLADY WYTWORCZE GLOSNIKOW TONSIL. Feb. 5, 1960 [Aug. 11, 1959], No. 4230/60. Class 40 (1). Remote control handling apparatus comprises a transmitter and a receiver each of which comprises a selsyn 1 carrying on its shaft a stirrup carrying a second selsyn 3 which in turn carries on its shaft a third selsyn 8 to the shaft of which is attached in the case of the transmitter a control member and in the case of the receiver a gripping device. The first selsyn is mounted on a platform running on a railway, its position being controlled by a fourth selsyn. Each selsyn in the transmitter is electrically connected to the corresponding selsyn in the receiver so that movement of the control member in the transmitter is reproduced by the gripping device in the receiver.
|
en
|
GB-848500-A
|
GB-424060-A
|
GB
|
A
|
A
| null | 1960-02-05
| null |
B28C5/42
|
CUNNINGHAM WALLACE
|
Concrete and like mixers and agitators
|
en
|
848,500. Concrete mixers. WINGET Ltd. Feb. 5, 1960, No. 4240/60. Addition to 840,227. Class 86 [Also in Group XXXV] In a modification of the mixer of the parent Specification the electromagnetic clutch has an input shaft 2 and input rotor 9, 10, 11, and an output shaft 5 and rotor 8. Ferro-magnetic powder in the airgap between the peripheral surface 13 of the output rotor vein 8A and the inner surface of the vein 10 of the input rotor transmits torque between the input and output rotors when the stationary exciting coil 15 is energized. The clutch is connected to the vehicle battery through a control circuit, Fig. 3, (not shown) which provides for the clutch to be interconnected with the vehicle clutch and for the maximum current to be limited, while the vehicle is in motion, to a figure which will ensure smooth take-up; and alternatively for the clutch current to be controlled, to a maximum giving much greater torque, by a handoperated rheostat when the vehicle is at rest.
|
en
|
GB-1182321-A
|
GB-425267-A
|
GB
|
A
|
A
| 4206-06-01
| 1967-01-27
| null |
B01D1/22
|
LIST HEINZ
|
Process and Apparatus for the Treatment of Flowable Products
|
en
|
1,182,321. Mixing apparatus; evaporators, film type; dispersing apparatus; comminuting apparatus. H. LIST. 27 Jan., 1967 [28 Jan., 1966], No. 4252/67. Headings B1B, B1C, B1V and B2A. [Also in Division B5] In an apparatus and process for mixing, dispersing, pulverizing, evaporating and degassing, the material is formed into a thin film the thickness of which is continuously varied between two elements having relative vibratory and rotational movement. In Fig. 1 a rotatable member 10 comprises cylinders 11, 12 interfitting with cylinders 21, 22, 23 of a member 20 which is diametrically reciprocated or vibrated as well as being slowly rotated. Material enters at 25 and is discharged at 34 after following a tortuous path between the cylinders. The working surfaces have helical grooves 14 which assist progress of the material and may be deeper at one side to generate additional shear forces. The members 10, 20 have channels (not depicted) for a heat transfer medium; the member 20 may be raised by hydraulic or pneumatic jacks 30 and pivoted on trunnions 41 for cleaning. In a modification (Figs. 3 and 4, not shown) the member 20 performs an orbital motion while a screw (18) assists flow of material which is pressed through discharge orifices (19) as strands which are severed by a fixed knife (69). In another embodiment (Figs. 5 and 6, not shown) the member 20 is fixed to the casing of an extruder screw 26 while the member 10 has combined rotational and orbital motion. When embodied as a thin film evaporator (see Fig. 7, not shown) the cylinders of the upper member 20 are longer than those of the lower member 10 and the member 20 has an annular collecting channel (90) for vapour and a discharge outlet (91). The members 10, 20 may be pins instead of cylinders as shown.
|
en
|
GB-1455321-A
|
GB-430074-A
|
GB
|
A
|
A
| null | 1974-01-30
| null |
A61C5/62
| null |
Dental syringe
|
en
|
1455321 Dental appliances G-C DENTAL INDUSTRIAL CORP 30 Jan. 1974 04300/74 Heading A5R [Also in Division B8] A syringe 10 for holding components of a composite dental resin comprises a hollow cylinder 11 having a frusto-conical first end 12 terminating in an outlet 13 and a flange 14 formed at its other end, and a plunger 15 slidable within the cylinder and having two conical projections 16, 18 for sealing contact with the cylinder inner wall. The outermost edges 17, 19 of the projections are preferably spaced apart between 3/4 and 3 times the inner diameter of the cylinder. The syringe is made of nylon, PTFE or polypropylene.
|
en
|
GB-784489-A
|
GB-437355-A
|
GB
|
A
|
A
| null | 1955-02-14
| null |
A61K31/16
|
HANNON JOHN WILLIAM GUY
|
Method and means of producing an atmosphere protective against silicosis
|
en
|
An atmosphere providing protection against lung fibrosis is produced by introducing into a closed chamber a powder comprising aluminium oxide formed from substantially pure aluminium, containing not more than 15 per cent metallic aluminium, said oxide powder being of particle size in which substantially all of the particles are below 1.2 microns and the majority are 0.4 microns or less, said powder having a settling characteristic such that on being introduced into a chamber at a concentration of 1 g. per 1000 cubic feet approximately 49,000 particles remain suspended per c.c. at an interval 8 minutes after introduction into the chamber. Preferably the aluminium oxide powder contains 10 to 15 per cent of metallic aluminium; it may be prepared according to the process of Specification 784,490, [Group II]. The powder may be projected into the air at a speed of the order of 45,000 feet per second.
|
en
|
GB-418296-A
|
GB-438733-A
|
GB
|
A
|
A
| null | 1933-02-13
| null |
F27B9/20
| null |
Improvements relating to furnaces
|
en
|
418,296. Metal - heating furnaces. ARNOLD, C., 11, Southampton Buildings, Chancery Lane, London.-(Foundry Equipment Co. ; Cleveland, Ohio, U.S.A.) Feb. 13, 1933, No. 4387. [Classes 51 (i) and 51 (ii).] Charges, conveying; doors.-In a metalheating furnace having a step-by-step conveyer comprising fixed rails alternating with moving rails adapted to be raised and lowered and reciprocated horizontally, the movements of the latter rails are effected by a single driving element which alternately engages gearing for raising and lowering the rails and gearing for moving them to and fro. As shown, the moving rails 26 are carried on cross beams 27 mounted on posts 28 which extend through the furnace bottom 3 and are adjustable vertically in sockets 31<a> secured on a girder framework 30, 31. The slots 38 in which the posts 28 operate are provided at both upper and lower ends with sealing devices comprising fixed slotted plates 39, 41, over which are moved, as the posts 28 travel longitudinally of the furnace, sealing plates 40, 42, the latter being imperforate except for an aperture to permit passage of the post 28. The vertical and horizontal movements of the frame 30, 31 are derived from a shaft 52 driven through reduction gearing from a motor 50 and having secured thereon a mutilated pinion 54 which engages alternately with pinions 55, 57, Fig. 21, on shafts 56, 58, the latter respectively effecting the raising and lowering and the horizontal reciprocation of the frame 30, 31. The shaft 56 is connected by cranks 61 and connecting rods 62 to bell-crank levers 65, Fig. 7, rigidly mounted on a rock shaft 64 and carrying rollers 69 which engage wear plates 70 on the underside of the girders 31 and effect the raising and lowering thereof as the shaft 64 is rocked. In order to provide for lifting the girders 31 throughout their entire length, the bell-cranks 65 are connected to sectional pull rods 66 to which are attached at intervals further bellcranks 65<a> also carrying rollers 69<a> engaging the undersides of the girders 31. The shaft 58 is connected through crank 84 and connecting rod 85 to an arm rigid on the rock shaft 88, the latter carrying arms 90 supporting blocks 92 which effect reciprocation of the frame 30, 31 by engagement in driving blocks 94 mounted on the girders 31. To prevent any overlap of the vertical and horizontal movements, there are secured to the pinions 55, 57, discs 95, 96 having oppositely disposed notches 95<a>, 96<a>, these discs being displaced by 90‹ from each other in order that rollers 104 on the ends of a rocking beam 102 may, by engagement in one of the notches 95<a>, 96<a>, maintain stationary the pinion 55 or 57 which is not in mesh with the driving pinion 54. The rails 26 of both the fixed and moving parts of the conveyer are formed of longitudinal sections connected together by tongue and slot connections to permit expansion and contraction. The furnace is fired by burners 16 disposed in staggered relationship along the two side walls, these walls being formed with oppositely arranged vertical flues 14, 15 which communicate at their lower ends with the space B below the conveyer and at their upper ends with the burner ports 14<a> and the atmosphere respectively. This arrangement effects a re-circulation of the hot gases through the working chamber A and the space B below the conveyer, the excess gases passing out through the damper-controlled outlets 19 at the upper ends of the flues 15. The furnace chamber A has, at the charging end, self-closing pivoted doors 49 and, at the discharging end, a vertically sliding door 106 which is actuated, through a segment 109<a>, connecting rod 112, and crank 113, by a motor 115; the latter is started and stopped by a switch operated automatically by the end of the moving part of the conveyer or by an article thereon.
|
en
|
GB-1104916-A
|
GB-442865-A
|
GB
|
A
|
A
| null | 1965-02-02
| null |
B64C13/02
|
JOWITT PETER FREDERICK
|
Method and means for reducing hazards due to loose stray objects or articles in apparatus having mechanically moving or electrically live parts
|
en
|
1,104,916. Traps for stray objects. MINISTER OF TECHNOLOGY. 17 March, 1966 [2 Feb., 1965], No. 4428/65. Heading F2X. Stray objects 9, 10 are prevented from accidentally jamming or linking electrically live elements 7 in a compartment 2 by providing a layer of material 1 with an exposed surface which is both deformable and sticky to hold the objects against movement. The material 1 may be spongy foam plastic material having a honeycomb-like or other formation to provide recesses to trap the objects or it may comprise a brush or pile fabric. Both surfaces are treated with adhesive and covered by removable protective papers of different appearance. A reinforcing backing may be used on the material 1 to facilitate removal when replacement is necessary. The elements 7 may be switch contacts actuated by a chain-driven cam 6 forming part of an aircraft control mechanism.
|
en
|
GB-1010521-A
|
GB-446863-A
|
GB
|
A
|
A
| null | 1963-02-04
| null |
D21J5/00
| null |
Improvements in or relating to apparatus for continuously producing molded articles
|
en
|
1,010,521. Endless conveyers. DAIMOND NATIONAL CORPORATION. Feb. 4, 1963 [April 26, 1962], No. 4468/63. Heading B8A. [Also in Divisions F3 and F4] An apparatus for continuously removing moulded pulp articles from drying forms 12 comprises a horizontally disposed endless conveyer 10 formed by linked rectangular frames 18 mounted on rollers 22 and containing rows of the article drying forms 12, the latter including normally retracted, extendable article ejecting pins 28 and means 17 having the same linear speed as the conveyer 10 and adapted to engage and thus extend the pins 28. The wet pulp articles are taken by the upper run of the conveyer 10 through a drying oven from which they are conveyed inverted on the lower run of the conveyer 10 to engage the ejection means 17. The horizontal rotational axis Y i.e. shaft 30, of the latter is closer to the lower than the upper run of the conveyer 10, such that abutment portions 44 on abutment elements 40 of the means 17 only engage the ejecting pins 28 on the lower run. The plurality of abutment elements 40 are substantially U-shaped, extending transversely across the conveyer 10 and are at each end pivotally mounted by means of a shaft 38 journalled in a rotatable support spider 34. The attitude of each abutment 40 is controlled by a cam follower 50 which is mounted on an arm extending from the shaft 38 and engages a cam track 48. Rollers 54 mounted on the abutments 40 engage arcuate surfaces 58 which are concentric with the shafts 38 and are formed on a star-wheel 56 keyed to the shaft 30. The abutment portions 44 depend from a plate 68 which is adjustable relative to the abutment 40 by means of a threaded shaft 60. Further adjustment of alignment between the ejector pins 28 and the abutment 40 is effected by means of an angularly adjustable unit placed between the shaft 30 and its driving motor.
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en
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GB-1249725-A
|
GB-450769-A
|
GB
|
A
|
A
| null | 1969-01-27
| null |
F16B25/10
|
GUTSHALL CHARLES EDWARD
|
Self-tapping screws
|
en
|
1,249,725. Self-tapping screws; forging dies. ILLINOIS TOOL WORKS Inc. 27 Jan., 1969 [26 Jan., 1968], No. 4507/69. Headings B3H and B3N. A screw for use with sheet metal has a workpenetrating portion having two integral dissimilar segments falling on opposite sides of a plane A-A, the first segment 38 having a helical flute 42, the second segment having a flat first portion 46 and a second portion having partial threads 52, the tip 40 is rounded. In operation the screw is entered into an undersized hole and rotation of the screw causes flute 42 then threads 52 to pull the screw through the hole, the work-penetrating portion deforming the edge of the hole to form an extrusion 64. In a modification Fig. 19 (not shown) the first portion of the second segment lies in plane A-A and can be concave, the lower part of segment 38 comprises a semi-pyramidal shape such that a cross-section at this position would be triangular -this embodiment is self-drilling. A further embodiment Fig. 21 (not shown) is similar to the first embodiment except that portion 46 has a depression and the first segment has a partial thread between flute 42 and the shank. Manufacture.-A screw is made by heading a blank to have a reduced pilot portion, a shank and a head, and pinch-pointing the said portion to form a work-penetrating portion, then rolling the threads on the shank and finally heat treating the screw.
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en
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GB-906943-A
|
GB-454459-A
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GB
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A
|
A
| null | 1959-02-10
| null |
B65H75/14
|
CLOUGH GEOFFREY MICHAEL
|
Improvements in or relating to cardboard and other similar tubes
|
en
|
906,943. Feeding webs. HART & CLOUGH Ltd. Feb. 23, 1960 [Feb. 10, 1959], No. 4544/59. Class 100 (1). End flanges for cardboard and similar tubes have a boss 3 on one surface approximately corresponding in diameter to that of the inner bore of the tube 2, the boss having a notch 4 housing a pair of radially projecting springy teeth 6 for gripping the inner wall of the tube and preventing subsequent withdrawal or detachment of the flange.
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en
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GB-287296-A
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GB-460227-A
|
GB
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A
|
A
| null | 1927-02-18
| null |
B60R16/02
| null |
Improvements in and relating to electric wiring systems for motor cars and the like vehicles
|
en
|
287,296. British Thomson-Houston Co., Ltd., and Garton, E. Feb. 18, 1927. Drawings to Specification. Systems of wiring.-The leads from the switchboard of a motor vehicle are taken to a plug on the driving side of the scuttle dash-board, the plug being of smaller size than the switch-board so that it may be taken through the facia board after removal of the switchboard for any purpose. 'The electric circuits of the vehicle are not disturbed as by this operation they terminate at the engine side of a connection board with which the plug engages. A lamp and switch may be mounted on this board to illuminate the bonnet interior and provide an inspection lamp conection. A fog light may also be connected at this point.
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en
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GB-578386-A
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GB-464744-A
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GB
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A
|
A
| null | 1944-03-13
| null |
E04G7/24
| null |
Improvements connected with scaffolding clips and the like
|
en
|
578,386. Fencing. ALLMAN, E. J. March 13, 1944, No. 4647. [Class 45] [Also in Groups X and XXIII] A clip for scaffolding, fencing &c. is U-shape and has side cheeks 2, Fig. 1 with open slots 3 and lateral lugs 4 and two latch bars 6 which are pivoted on two of the lugs 4 and can be swung behind a pair of the lugs to form abutments for tubes recessed between the cheeks and in the slots to be clamped between the latch bars and the body of the unit by clamping screws 12. The latch bars 6 can be swung to bridge either the slots 3 or the cheeks 2 which they engage by notches 11. The pivots 7 of the latch bars are mounted in slots 8 to enable the latch bars to engage behind projections 10 when bridging the slots. In Fig. 3 a tube 18 is shown recessed in the closed end of the clip at right-angles to a tube 19 in the slots 3. The clip is shown in use clamping together various combinations of tubes. The slots 3 are T-shaped to enable tubes to be clamped 'diagonally by engaging the tube in opposite ends of the cross portions of the slots and also to allow two parallel tubes to be clamped in the ends of the cross portions. To ensure a firm grip on the tubes the closed ends of the clip may have projections and the ends of the screws be hollowed. Notches 23, Fig. 1, are provided to locate a tube. The clamping screws are also shown fitted in the closed end of this clip.
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en
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GB-547204-A
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GB-477041-A
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GB
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A
|
A
| null | 1941-04-10
| null |
F01D5/08
| null |
Improvements in and relating to cooling arrangements for gas turbines
|
en
| null | null |
GB-852944-A
|
GB-477659-A
|
GB
|
A
|
A
| null | 1959-02-11
| null |
C09D191/00
|
SITES BENJAMIN L
|
Improvements in quick-drying vehicles for coating materials
|
en
|
Quick drying compositions for coating materials comprise (a) a binder of the drying oil type containing conjugated double bonds, preferably bodied tung oil, and (b) an oilsoluble acyl halide photo - polymerization catalyst; of many such acyl halides mentioned, cinnamoyl chloride is preferred. The composition may also contain a cross-linking agent such as divinylbenzene, and an organic peroxide such as benzoyl peroxide. The degree of conjugated unsaturation in the drying oil binder comprises at least 30% of the total unsaturation, and the photo-polymerization catalyst is generally present in an amount of 2-8% by weight of the binder, and may be activated by ultra-violet light or alpha rays.
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en
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GB-490680-A
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GB-484237-A
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GB
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A
|
A
| null | 1937-02-18
| null |
F16B39/34
| null |
Improvements in lock-nuts
|
en
|
490,680. Lock-nuts. LORING, F. H., and MARSHALL, E. L. Feb. 18, 1937, No. 4842. [Class 89 (i)] A lock-nut is fitted internally with one or more inserts of fibre or like yielding material that extend longitudinally from one face of the nut to the other. The inserts 11, 20 may be straight and parallel with the axis of the nut, or of spiral formation, as shown in Figs. 5 and 8 respectively. In cross-section the inserts may be part-circular, rectangular, or dove-tailed with flat or curved rear walls, and the faces of the nut may be burred over to hold the ends of the inserts in position. After insertion the inserts may be slightly threaded to facilitate engagement with a bolt or the like. According to the Provisional Specification the nut with the inserts in place may be soaked in fat or oil.
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en
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GB-1261834-A
|
GB-485469-A
|
GB
|
A
|
A
| null | 1969-01-29
| null |
E04B1/68
| null |
Sealed expansion joint between two building components
|
en
|
1,261,834. Sealed expansion joint for buildings. P. SCHULTE-STEMMERK KG. FUR INDUSTRIE UND HANDEL. 29 Jan., 1969 [7 Feb., 1968], No. 4854/69. Headings E1B and E1G. In an expansion joint, e.g. in a floor, each of the building components 1, 1a which define the joint gap are provided with an edging rail 3 or 4 respectively of metal or hard PVC which has a projection 6a or 6b respectively extending into the gap and permanently elastic sealing material applied influent form or as preformed elastomeric strip 9, e.g. a strip of a polysulphide elastomer, is supported by the projections 6a and b and fills the space between them and the mouth of the joint. As shown the projections overlap and projection 6b is triangular in cross section, and the rails have extensions 3a and 4a to be affixed e.g. adhesively to the components. In a second embodiment there are provided on the rails perforated flanges extending outwardly of the joint below the projections which are fixed to the components, flooring or rendering is laid on the components, so that the projections thus extend across the joint.
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en
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GB-585541-A
|
GB-486145-A
|
GB
|
A
|
A
| null | 1945-02-27
| null |
B61D27/00
| null |
Improvements in or relating to ventilators for moving vehicles
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en
|
585,541. Vehicle ventilators. LYNES, L., VIDAL, J. F. B., and MEAD, McLEAN & CO., Ltd. Feb. 27, 1945, No. 4861. [Class 137] In vehicle ventilators of the kind comprising a vane with an outwardly flared trailing edge causing air taken in at the leading edge with induced air from within the vehicle to be deflected outwardly the vane is slidable from its operative position to close the opening. A ventilator for use above a railway carriage window comprises an opening 4 between fixed lights 12, 13, and reversely set glass vanes 1, 2 in frames 5 slidably mounted on guide rails 8 or a sill 3. The abutting frame edges may be grooved or provided with packing and the outer edges engaged by stop flanges 17 on the frames 18 of the fixed panes. In the open position of the vane stops 20 on mountings for finger knobs 19 come against the flanges 17. With the forward vane open an air stream is induced from within the vehicle and the other vane even if left closed is prevented from acting as a scoop. Specification 424,697 is referred to.
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en
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GB-420206-A
|
GB-492534-A
|
GB
|
A
|
A
| null | 1934-02-14
| null |
F16D65/82
| null |
Improvements in and relating to means for conducting fluid into or from passages in rotating shafts or the like
|
en
|
420,206. Self-aligning bearings ; cooling brakes. NATIONAL SUPPLY CORPORATION, 120, Broadway, New York, U.S.A., and OIL WELL ENGINEERING CO., Ltd., Cheadle Heath, Stockport, Cheshire. Feb. 14, 1934, No. 4925. Convention date, July 24, 1933. [Classes 12 (i) and 103 (i)] [See also Group XXVI] A fluid-conducting means such as a tube 40, which is maintained in alignment with a passage in a shaft or other rotary member 1 by connecting the said means to the movable but non-rotatable part 50 of the self-aligning bearing in which the shaft is mounted, is surrounded by a packing gland 42 fixed to the shaft 1 to maintain a fluidtight connection between the shaft and the tube 40. The connecting means comprise a bracket 41 a semi-annular flange on which is bolted to a similar flange on an annular plate 51 welded to the part 50. The part 50 forms the outer race of a roller bearing and is spherically curved to align itself in the bearing housing 8. The packing gland 42 is bolted to the shaft and has a flange 61 extending beyond the periphery of the shaft to form a thrust bearing with the plate 51 a replaceable thrust washer being interposed. The tube 40 at the end remote from the shaft passes into the bracket 41 so as to communicate with a passage 25. A flange 55 on the pipe 40 is bolted to the bracket 41, a sealing washer being interposed. The inner race 48 of the bearing is positioned by a spring-pressed dowel 65 and the outer race has a grease fitting 66. A detachable cover plate 68 protects the operator against contact with the revolving packing gland 42. The invention is shown applied to a fluid system for cooling the brake rims 3 of a hoisting drum 2. The drum is supported on the shaft 1 mounted in self-aligning bearings, the cooling fluid being supplied through a passage 21 in one end of the shaft and led away through a passage 20 in the opposite end.
|
en
|
GB-1072392-A
|
GB-511563-A
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GB
|
A
|
A
| null | 1963-02-07
| null |
F16K3/16
|
CROKER RAYMOND
|
Improvements relating to gate valves fluid flow lines
|
en
|
1,072,392. Valves. DEWRANCE & CO. Ltd. Feb. 6, 1964 [Feb. 7, 1963], No. 5115/63. Heading F2V. A valve gate 16 in a chamber 14 comprises spring-pressed members 20, 22 having parallel sides and rounded ends and engaged by pins 27 projecting from a carrier 26. The gate is smaller in width than height and the circular fluid flow connections 6, 8 are flared as they enter the chamber 14 to provide an opening which is smaller in width in a direction normal to the operating spindle than in the direction of the axis. A sheath 34 in the minor part of a stuffing box is formed to receive the gate which, by turning a handle 70, is lifted into the open position, the sheath having raised parts 35. The operating spindle is threaded and passes through a nut 82 secured in a transom 84 of a yoke 39. The latter comprises two diametrically opposed pillars screwed into the stuffing box 32. After opening the valve and releasing a stuffing box bridge, the gate and stuffing box components may be partly withdrawn, complete withdrawal being effected after removing the transom.
|
en
|
GB-911281-A
|
GB-517758-A
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GB
|
A
|
A
| null | 1958-02-18
| null |
A23J1/12
|
EVANS CYRIL HARRY
|
Process for the production of foaming agents from cereal proteins
|
en
|
A foaming agent is prepared by digesting a cereal protein in the cold with water containing lime for up to 24 hours, the amount of lime being in excess of and preferably at least ten times that required to form a saturated solution, whereby a soluble portion constituting the foaming agent and an insoluble portion are formed, and thereafter separating the two portions. The foaming agent present in the soluble portion may be precipitated by acid and then redissolved in water containing lime; the solution of the foaming agent may then be concentrated under reduced pressure and spray-dried. Whole wheat, rye, barley, oats, rice or maize ground to a meal or cereal bran, flour or gluten are mentioned as sources of cereal protein. An example is directed to the digesting of wheat gluten for from 3 to 24 hours in the cold under vacuum or other conditions preventing the formation of foam; the soluble portion obtained was separated by centrifuging and spray-dried to yield a reconstitutable powder. Other examples are concerned with the treatment of ground wheat bran and cereal flour.ALSO:A foaming agent, e.g. for meringues, is prepared by digesting a cereal protein in the cold with water containing lime for up to 24 hours, the amount of lime being in excess of and preferably at least ten times that required to form a saturated solution, whereby a soluble portion constituting the foaming agent and an insoluble portion are formed, and thereafter separating the two portions. The foaming agent present in the soluble portion may be precipitated by acid and then redissolved in water containing lime; the solution of the foaming agent may then be concentrated under reduced pressure and spray-dried. Whole wheat, rye, barley, oats, rice or maize ground to a meal or cereal bran, flour or gluten are mentioned as sources of cereal protein. An example is directed to the digesting of wheat gluten for from 3 to 24 hours in the cold under vacuum or other conditions preventing the formation of foam; the soluble portion obtained was separated by centrifuging and spray-dried to yield a reconstitutable powder. Other examples are concerned with the treatment of ground wheat bran and cereal flour.
|
en
|
GB-755250-A
|
GB-518554-A
|
GB
|
A
|
A
| null | 1954-02-22
| null |
B63H21/22
| null |
Control means for moving a movable member from any one into any other of a first, second and third consecutive positions, for example in a reverse gear operating system for marine engines
|
en
|
755,250. Electric selective signalling. PARSONS, J. B. Feb. 22, 1954, No. 5185/54. Class 40(1) [Also in Groups XXIV and XXXVII] The operating lever R of a reversing gear is moved between its forward, neutral and reverse positions by mechanism including a reversible electric motor 10 controlled by a three-way manual switch 25 in series with selector switch gear 17 operated by a rod 16 connected to lever R. The motor 10 may actuate lever R directly through toothed gearing or through a screw-and-nut connection, but as shown in Fig. 3, the motor drives a pump discharging, according to its directions of rotation, to one or other end of a double-acting fluid servomotor 13, the piston rod 14 of which is connected to lever R. The switch gear 17 comprises a casing with four pairs of contacts 21-22, 21a-22a, 29-29a and 30-30a, contacts 29 and 30 being connected respectively to the forward and reverse contacts 32 and 31 of switch 25, contacts 21, 21a being connected to the neutral contact 24 of switch 25, contacts 22, 29a being connected to the forward relay 10a of motor 10 and contacts 22a, 30a being connected to the reverse relay 10b of motor 10. Rod 16 carries four slidable contact discs 27, 28, 33, 37 has an enlargement 20 between discs 27, 28, and carries two adjustable abutments 18, springs 35 and 36 being arranged between discs 27, 37 and 28. 33, Fig. 4 shows the parts in neutral position, with discs 33 and 37 bridging across the contacts 29-29a and 30-30a while discs 27, 28 are held away from the other contacts by the enlargement 20. If switch 25 is now moved, for example, to forward position, relay 10a is energized and motor 10 turns forwardly to cause lever R to turn anticlockwise engaging forward gear. During the consequent rightward movement of rod 16 disc 37 remains in contact with contacts 30, 30a, disc 27 is moved further away from contacts 21, 22 disc 28 moves into contact with contacts 21a, 22a, and, at the end of the movement, the left-hand abutment 18 moves disc 33 away from contacts 29, 29a, so de-energizing the motor. the parts now occupying the positions shown in Fig. 5. If now switch 25 is moved back to neutral position, reverse relay 10b is energized via discs 28, and the motor turns reversely until the enlargement 20 moves disc 28 away from contacts 21a, 22a, to de-energize the motor. In a modified form of selected switch, rod 16 has secured thereto a carrier for three spring-loaded longitudinally-arranged contact strips co-operating with the four pairs of contacts. Specification 674,316 [Group XXVI] is referred to.
|
en
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GB-556917-A
|
GB-521142-A
|
GB
|
A
|
A
| null | 1942-04-20
| null |
A43D11/08
| null |
Improvements in or relating to the removal of lacing from shoe uppers or machines adapted for use for such removal
|
en
|
556,917. Removing lacing from shoe uppers. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). April 20, 1942, No. 5211. [Class 17 (i)] A machine for the removal of lacing from lasted uppers grips each lacing successively and forces it against a severing device, a guard protecting the upper. A pair of spaced knurled discs 16, 18 are rotated at about 150 revolutions per minute and adjustably spaced from an arcuate recess in a piate 26. The plate has a projection terminating in an off-set finger 32 adapted to be passed under the outer lacings and between the edges of the upper. An upper guard 42 is adjustable by screws and slots 44. A knife 36 is positioned between the discs to sever the laces as they are dragged up by the discs. Opposite the lower disc the plate 26 is bevelled away so that the severed lace is held by the upper disc only. A stripper 50 removes any lace carried right round. Specifications 7013/06, [Class 17], and 474,025 are referred to.
|
en
|
GB-806625-A
|
GB-525157-A
|
GB
|
A
|
A
| null | 1957-02-15
| null |
B60T7/18
| null |
Improvements in automatic means for controlling the braking of rail vehicles
|
en
|
806,625. Railway braking systems. SOC. INDUSTRIELLE DE LIAISONS ELECTRIQUES, and HOURS, G. E. Feb. 15, 1957 [Feb. 16, 1956], No. 5251/57. Class 103 (1). An automatic braking system for railway vehicles, the basic principles of which are shown in Fig. 1, comprises pairs of inductors 1 and 2, of which the inductors 1 is of permanent magnet type and the inductors 2 of coilexcited type arranged at distances D1, D2, D3, and D4, along a track in approach to a signal S, the coil inductors being arranged to neutralize the effect of the inductors 1 if the signal is " down " or is in a position to pass a train. The system works on the principle that a train may be allowed to pass at certain pre-determined maximum speeds up to the distance D2, D3 and D4 from a signal S without braking, such speeds being represented by the height of the shaded areas in the diagram. Assuming, however, that the speed-distance plot of a train is represented by the dotted line curve, braking must be carried out at any time this curve crosses a shaded area and the braking and circuit control means for carrying this out are shown in Figs. 3 and 4. In Fig. 3, the passage of a detector magnet 35 on the train past a permanent magnet inductor 1 releases the armature 31a so that under the effect of spring 30, it closes contacts 24, 25 for a short period. This is, however, sufficient to energize solenoid coil 22a so that holding contacts 23 are closed and contacts 8, 12 opened. Current supply to solenoid 14, which controls a mechanism 17, whereby the brakes are applied, is therefore passed from a source B only through contacts 9, 13. These contacts are opened to produce a brake application, if at any time, the speed of the train is such that the E.M.F. produced by generator 33 acting in the coil 32 of solenoid 32a is sufficient to overcome the force of spring 11. When a train initially passes its detector 4 over the first inductor 1, contact 26 is switched over from b to c and also, if the coil inductor 2 is energized, it closes a contact a which operates a general cancelling relay A having a movable contact 27. Pairs of relays DIX1, D2X2, D3X3, are associated with each section of the track between successive pairs of inductors, the last zone being controlled by a single relay D4, the relays affecting operation of contacts C1, C2, C3. The contacts C3, in co-operation with. contacts V1, V2, V3, operative by relay V100, V65 and V30, responsive to particular speeds of the generator G driven by the vehicle wheels, act to energize a solenoid F1 controlling a high-speed braking electrovalve in a manner appropriate to the speed of the train and its position on the track. A further solenoid F2, provided for braking at speeds lower than 30 km.hr. has a single energizing circuit through the contact C3 of the last relay D4. Rearming relay Re and relay Rg exercise overall control of the pairs of relays DiX and the operation of the generator G. Specification 804,427, [Group XXX], is referred to.
|
en
|
GB-291146-A
|
GB-525227-A
|
GB
|
A
|
A
| null | 1927-02-24
| null |
C12M1/04
| null |
Improvements in and connected with the manufacture of yeast
|
en
|
291,146. Johnson, J. Y.. (Biicher, H.). Feb. 24, 1927. Drawings to Specification. Acetaldehyde.-In a continuous process for manufacturing yeast employing closed fermentation vats, the liberated gases are treated with solvents or adsorbents to recover acetaldehyde.
|
en
|
GB-547859-A
|
GB-531341-A
|
GB
|
A
|
A
| null | 1941-04-24
| null |
C01G37/14
| null |
Improvements relating to the production of basic zinc chromate
|
en
|
547,859. Basic zinc chromate. NON-FERROUS METAL PRODUCTS, Ltd. April 24, 1941, No. 5313. Convention date, April 29, 1940. [Class 1 (iii)] A basic zinc chromate which is a chemical individual and has the formula 5ZnO.CrO 3 .4H 2 O is made by stirring 500 kg. zinc oxide into 5000 litres of water and adding rapidly 125 kg. chromium trioxide, CrO 3 , dissolved in 150 litres of water. The reacting mass becomes solid in about 9 minutes and is dried to constant water content. Excess of zinc oxide produces a mixture of the basic chromate with the zinc oxide. In another example 18.6 litres of zinc sulphate solution (100 grams per litre Zn) is added to a slurry of 32 pounds zinc oxide in 50 gallons water. After agitating for 45 minutes the slurry is heated to 50‹C. and 22.5 lbs. sodium dichromate (Na 2 Cr 2 O 7 , 2H 2 O) dissolved in 10 gallons of water added at 1 gallon per minute. After standing the slurry is put through a filter press and the resulting cake dried and disintegrated. The substance is used as a pigment.
|
en
|
GB-285821-A
|
GB-534428-A
|
GB
|
A
|
A
| null | 1928-02-20
| null |
B22D13/10
| null |
Jacketed mold for centrifugal casting of metal
|
en
|
285,821. International De Lavand Manufacturing Corporation, Ltd., (Assignees of Holthaus, J.). Feb. 21, 1927, [Convention date]. Casting-machines; moulds.-A long centrifugal mould 1 is supported by studs 3, 7 of a frame work or tube 2 resting on rollers 5 in a water jacket 12. The studs 7 hold the tube while the studs 3 are adapted to slide when the mould expands. Circulation of water in the tube 2 is ensured by outlets 6 which may be inclined or provided with a vane to increase the flow and inlets 13 at the ends or inclined or provided with a vane opposite to the outlets as shown in Fig. 3.
|
en
|
GB-281904-A
|
GB-538927-A
|
GB
|
A
|
A
| null | 1927-02-25
| null |
B01F7/16
| null |
Improvements in and relating to mixing and stirring apparatus
|
en
|
281,904. Easterbrook, F. A., and Brown &. Son (Alembic Works), Ltd. Feb. 25, 1927. Stationary mixers with rotary stirrers. - In mixing-apparatus comprising a container provided with a cover which supports an electric driving motor operating a shaft on which the beater is mounted, the beater comprises a central bevelled disc 13 to the edge of which longitudinally arranged vanes 14 are attached, the ends of the vanes being enclosed in cylindrical bands 16. The beater is mounted eccentrically in the container, which is provided with diametrically opposite internal V- shaped projections.
|
en
|
GB-1020451-A
|
GB-545462-A
|
GB
|
A
|
A
| null | 1962-02-13
| null |
B63B39/03
|
BELL JOHN
|
Improvements in or relating to stabilization of floating bodies
|
en
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1,020,451. Stabilizing ships. MUIRHEAD & CO. Ltd. Jan. 25, 1963 [Feb. 13, 1962; Feb. 13, 1962], Nos. 5454/62 and 5455/62. Heading B7M. A floating body comprises a stabilizer tank the bottom of which is open for communication with the sea, and means for controlling the displacement of water in the tank for opposing rolling or pitching, characterized by means mounted on the body for displacing the water in the tank by gas under pressure greater than atmospheric. A valve 8 controlling the flow of gas between stabilizer tanks 2, 3, is controlled by a velocity or rate gyroscope 9 such that when the latter 9 is in a central position, the roll velocity is zero, i.e. the body is at the extremity of a roll either to port or starboard. An arm 10 will then be central and opposing contacts 15, 21; 15<SP>1</SP>, 211 will be open and a solenoid coil 25 will be de-energized and the valve 8 will remain open. When the ship returns to the vertical, the arm 10 is deflected, e.g. to the left, the upper portion 14 will be deflected to the right and the contacts 15<SP>1</SP>, 21<SP>1</SP> will meet, energizing the coil 25 and closing the valve 8. As rolling continues, the portion 14 will engage a stop 23<SP>1</SP> and with further movement a plate 20 will be forced to move to the right. As the end of the roll is approached the portion 14 moves to the left breaking contact between 15<SP>1</SP> and 21<SP>1</SP>. Because plate 20 has been moved to the right, contacts 151 and 21<SP>1</SP> separate before arm 10 has regained the central position and thus the opening of valve 8 has been advanced in phase. The contact gaps, the distances between stops 23 and 23<SP>1</SP> and the amount of travel of plate 20 can be adjusted for optimum sensitivity and advance. In Figs. 9 and 11 (not shown) fins are shown in the region adjacent the opening in the stabilizer tanks. These fins are coupled together and operated by power means so that when it is desired to fill a tank, the forward edges of the fins are tilted downwards while at the same time fins attached to the corresponding tank on the opposite side of the body are tilted in the opposite direction to drain water from the tank. Fig. 8 shows an embodiment of an anti-pitching tank. Air chamber 46 is located above tank 39 in the bow of a ship 40 and is kept under pressure from air pump 47. Openings 41 allowing access to the sea are provided and stop valve 42 is located in the top of the tank 39, the stop valve being operated by a control system as indicated in Fig. 7 but in which the sensing means is sensitive to motion about the pitching axis of the ship.
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en
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GB-230090-A
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GB-547525-A
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GB
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A
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A
| null | 1925-02-27
| null |
A23L3/18
| null |
Controlling apparatus
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en
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230,090. Tagliabue Manufacturing Co., C. J., (Assignees of Bast, F. J.). March 1, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Fluid-actuated valves. - Valve apparatu,s for controlling a series of operations in a plurality of tanks consists of a number of air-pressureoperated valves and lever-cam devices actuated by clock-mechanism. The application to the pasteurization of milk is illustrated, the operation being such that when a cycle is completed in one tank, an intermediate point is reached in another, and the first step is occurring in another. The cycle with regard to the tank 10 is as follows :-The cam 27 is rotated by a clock 41, the lever 25, Fig. 4, is rocked about its pivot 26, a ball valve 19 is moved and air in a chamber of the inlet valve 13 is released. The tank 10 is thereupon filled with milk. Similarly a valve 15 is operated by a compound lever 31, 33, Fig. 3, to admit hot water to heating coils in the tank. The temperature is regulated by a thermostatic bulb 39 connected by a capillary tube 38 to a capsular spring 37 or like device, the lever 33 moving the air valve 22 according as more or less heat is required by the milk in the tank. The arrangement is such that both the filling of the tank and the heating to pasteurizing temperature require the same time, say 30 minutes. At the end of this time the cams allow the valves 13 and 15 to close. The outlet valve 17 is then opened by the action of a cam 30. The mechanism controlling the operations in the tanks 10<a> and 10<b> is similar.
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en
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GB-1352085-A
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GB-556172-A
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GB
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A
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A
| null | 1972-02-07
| null |
G01S3/14
| null |
Satellite antenna autotrack system permitting error signals to appear at the earth station
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en
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1352085 Radio directional control; aerials; radio signalling COMMUNICATIONS SATELLITE CORP 7 Feb 1972 [11 Feb 1971] 5561/72 Headings H4D H4A and H4L An aerial autotrack system for aligning the pointing direction of a transmitter aerial to correspond with the line of sight to a receiver aerial comprises means for generating four distinguishable electromagnetic beams, which are arranged in pairs. Said means includes first and second radiator means, each displaced in a respective plane on opposite sides of the axis of the transmitter aerial. At the receiver error signals are generated proportional to the differences in the received intensities of the beams of each pair, said error signals being proportional to the angular offsets from alignment of the transmitter aerial. Means are provided for transmitting said error signals from the receiver to the transmitter, and further means at the transmitter are responsive to said error signals to alter the alignment of its aerial in such sense as to reduce said error signals. As described, the aerial system of a communications satellite comprises a cluster of four horns A, B, C, D, Fig. 1, which feed a parabolic main reflector. The focal axis of the reflector is the pointing axis of the aerial and any directional offset is detected by the ground station with which the satellite is co-operating, whereupon said station transmits command signals to control the satellite aerial servomotors to reduce said offset. The horns are arranged in two planes, e.g. vertical and horizontal, in pairs A, C and B, D each of which is symmetrically disposed about the said axis. Each horn is excited by a pair of orthogonally disposed probes, e.g. the probes A V and A H in the horn A. Beacon signals of frequency f 1 are fed in phase quadrature to the probes of the horns A and C so that they radiate waves which are respectively of right and of left hand circular polarization. Similarly, beacon signals of frequency f 2 are fed to the probes of the horns B and D so that they radiate waves which are circularly polarized in opposite senses. The horizontal probes are directly coupled to the beacon signal generators, whilst the vertical probes are coupled through respective 90 degree delay lines 4, 8 and hybrid circuits 6, 10 (the latter producing a 180 degree phase difference between the vertical probes of a pair of horns). Down link communications signals of frequency f 3 are applied to the sum terminals of the hybrid circuits 6, 10 whereby the vertical probes are energized in phase, and radiate said signals as vertically polarized waves. The aerial system of the ground station, which is kept pointing at the satellite by a known autotrack system, comprises a single horn 14, Fig. 2, having probes E V and E H and a 90 degree phase shifter 16, said probes being respectively coupled to the input terminals of a hybrid circuit 18. When R.H. circularly polarized waves are received there is an output signal at the probe E H , whereas with L.H. circularly polarized waves there is an output signal at the probe E V . Equal amplitude output signals indicate that the satellite aerial is pointing at the ground station, whereas any difference in the amplitudes indicates an offset (Figs. 4A, 4B, not shown), and results in the appearance of a signal at the difference terminal of the hybrid circuit 18. Any such signal is separated by a diplexer 20 into components of frequencies f 1 and f 2 , which are applied to respective first input terminals of tracking receivers 26, 24. A coupler 19 applies part of the output from the sum terminal of the hybrid circuit 18 to a diplexer 22 where it is separated into components of frequencies f 1 and f 2 , which are applied to respective second input terminals of the receivers 26, 24. The outputs of said receivers respectively represent vertical and horizontal error signals. The vertically polarized communication signal waves of frequency f 3 result in equal output signals appearing at the probes E V and E H , and these are combined at the sum terminal of the hybrid circuit 18. A command system is described in which ground station command tone carrier signals are deviated in frequency in accordance with said error signals. After modulation with the command tones, the deviated carriers are combined in a directional filter with communication signals, and are radiated to the satellite (Fig. 3, not shown). There, after separation of the communication signals by a directional filter, the command signals are coupled to discriminators which remove the carriers. The command tones and the error signals are separated by filters, and the latter are applied to suitable servo systems to drive the satellite aerial into alignment.
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en
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GB-578017-A
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GB-557443-A
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GB
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A
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A
| null | 1943-04-07
| null |
G07F17/40
| null |
Improvements in coin controlled mailing machine
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en
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578,017. Coin-freed postal franking machines. DEHN, F. B. (Pitney-Bowes Postage Meter Co.). April 7, 1943, No. 5574. [Class 27] A coin - freed value - printing machine comprises coin-receiving mechanism, a credit mechanism which registers the total value of the inserted coins, manually selective means to determine the value to be printed during a cycle of operation, and means effecting subtraction of the selected value from the total value set up in the credit mechanism, wherein the credit mechanism comprises a plurality of differential gears, one set operated by coins of low denomination such as pennies or cents and another set by coins of higher denomination such as shillings or dimes, the differential gears being connected to the manually-selective means by mutilated gears and pinions which also serve to effect the subtraction of a selected value from the differential gears. The invention is adapted for use with the franking machine described in Specification 541,781, and is described in connection with a machine having four coin slots 4, Fig. 1, for coins of 1, 5, 10 and 25 cents respectively. A coin or coins having been inserted in the appropriate coin slot or slots, the total value of the inserted coins is summed up in a calculating unit 6, and an electric motor 1 is energized to provide the necessary power for all the machine operations. The operator now selects, by means of a knob 21, connected to dials 117, 118, the desired stamp value which is to be printed by the printing unit 3. If he now inserts a letter, this is printed with the selected value, and this value is subtracted from the original credit shown by the calculating unit .6. Successive letters may be inserted and franked with the same or a different value, but when the credit left, after subtraction, is less than the last selected value, the selector knob 21 is automatically returned to zero and no amount can be selected greater than the remaining credit. By the use of differential gears in the crediting mechanism, the adding and subtracting operations may be carried out simultaneously, and fresh coins may be inserted while the machine is in operation. Coin action. When a coin is inserted in one of the slots 4 it passes down a corresponding shoot 12 to a testing unit 5, Fig. 10, and down a channel 36 into a recess 41 on a disc 37 on a continuously-rotating shaft 38. Only one coin at a time can engage the disc as the coins are held by a stop 43 on a shaft 44, this shaft being driven from the shaft 38 so as to release one coin at each revolution of the disc. As the disc rotates, the coin 40 thereon rocks a lever 46 through an angle proportional to the diameter of the coin. This movement is transmitted through link 13 and arms 48, 49 on a shaft 50 to shift a corresponding rod'52Q, 52D, 52N or 52C, Fig. 6, and thereby move axially one or other of 'two multiple pinions 55n, 55t, Fig. 3, into line with a corresponding mutilated gear 16n or 16t on a rotating shaft 62. If a cent has been inserted, the " one '' of the units pinions 55u is brought opposite the cent mutilated gear 16u having only one tooth and the unit shaft 57u is driven by the gear 16u through one tooth angle only ; if a 5 cent piece or nickel is inserted, the pinion 55u is brought opposite a 5-tooth wheel N and is driven thereby ; if a 10 cent piece or dime is inserted, one of the tens pinions 55t is brought opposite the dime mutilated gear 16t having only one tooth, so that the tens shaft 57t is driven through one tooth angle : and finally, if a 25 cent piece or quarter is inserted, the tens pinion 55t is brought opposite a tens mutilated gear 16t having two teeth and the unit pinion 55n is brought opposite a 5-tooth mutilated gear 16u marked Q, so that the tens shaft 57t is driven through a 2-tooth angle and the units shaft 57n is driven through a 5-tooth angle. Credit mechanism. If, say, a quarter dollar has been inserted, the tens shaft 57t, Fig..3, has been rotated through a 2-tooth angle, and the units shaft 57u through a 5-tooth angle. The shaft 57t, through gearing 61t, 83 drives the sun pinion SB of a differential gear B, Fig. 4, and the planet carrier PB of this differential, through gearing 85, 86, shaft 17 and gearing 87, 88, drives the sun pinion SC of a differential C ; the planet carrier PC of differential C, through gears 91, 92, shaft 93 and gears 94, 95, drives a tens wheel 18t which is visible to the operator and registers the tens credit (2 in this case). This credit is also registered in a " compensator " unit 32, by trains of gearing in which the planet carrier PC drives the annulus or ring gear RD of a differential D, the planet carrier PD of differential D drives the compensator shaft 103 and rotates discs 213, 216, 217 thereon. Similarly, the units credit (5 cents) is registered on the units wheel 18u, the drive being transmitted from shaft 57u through gearing 61u, 65 to the sun pinion SA of differential A, and from the planet carrier PA to the units wheel 18u. The units credit is also registered in the compensator 32, the drive being from the planet carrier PA to a disc 211 of the compensator which is rotated forwards through 5 units. Selecting value of stamp to be printed on a letter or letters. The selector knob 21, Figs. 1 and 4, is fixed on shaft 22 which carries a units cam 114, Fig. 11, a cent cam 119, and a units indicator disc 117 ; an outer tens indicator disc 118 is geared to the, shaft 22 by a 1 : 10 Geneva mechanism 124, 124a which also drives a tens cam 122 loose on the shaft. If, say, the value of 1¢ cents is to be selected, the knob 21 is turned so that the dial 117 shows 1¢ cents ; and the cam 114, through a cam groove 148, rocks a lever 146 and sets the type of the printing unit 3 through a link 151 and arm 151a to the selected value. The cam 114 also rocks a lever 133 and shifts a rod 127 to bring a 3-toothed portion of a units compound mutilated gear 110 opposite a pinion 26u in readiness to subtract 1¢ cents when the printing is effected. At the same time the shaft 22 rotates a shaft 28 through gearing 23, 27 and drives the sun pinion SE of differential E. The planet carrier PE, through gears 81, 82 drives the compensator disc 211 backwards through an angle corresponding to 1¢ units. If a value of 10 cents or more is selected, shaft 22 is rotated one revolution or more and the Geneva gear 124 on the shaft rotates the indicator disc 118 and the tens cam 122, the latter rocks a lever 137 and shifts a rod 128 to bring one of the sections of a mutilated tens gear 111 into line with a tens pinion 26t in readiness to subtract 10 cents or multiples thereof when the printing is effected. At the same time the tens cam 122 rocks an arm similar to the arm 146 which rocks an arm 165 of the printing unit to set it to the selected tens value. The rotation of the shaft 22 through more than one revolution rotates the shaft 28 and sun gear SE accordingly and when shaft 28 has completed one revolution a Geneva gear 153 thereon rotates a pinion 154 on shaft 103 one step to (1) set the compensator discs 213, 216, 217, and (2) drive the sun pinion SD of differential D through gears 149, 150. Letter printing and subtraction of amount printed from the credit amount. After the insertion of coins to establish a credit, and the selection of 1¢ cents (say) to be printed, a letter is inserted, as described in Specification 541,781 and is printed by the printing unit 3. The motor 1 now drives the shaft 112, Fig. 3, carrying the mutilated gears 110, 111, and the units gear 110 having been shifted by the selector shaft 22 so that a 3-toothed part is opposite the pinion 26u drives the pinion and its shaft 155. This shaft drives through gearing 156, 157 the ring gear RA of differential A. The planet carrier PA drives (1) the units wheel 18u backwards 1¢ units, so that the credit now reads 23¢ cents, and (2) the ring gear RE of differential E, and the planet carrier PE drives the compensator disc 211 backwards through another 1¢ units. If a second letter is now inserted, the credit is reduced to 22 cents and the disc 211 is moved backwards through another 1¢ units. If now a selection of 18 cents is made by means of the knob 21, the shaft 22 rotates through more than one revolution and operates the Geneva gear 124, so that both the unit cam 114 and the tens cam 122 are rotated. These cams set the printing unit 3 to 18 cents and shift the mutilated gears 110, 111 in readiness for subtracting 18 cents from the credit of 22 during printing. Further, the rotation of shafts 22 and 28 through more than one revolution causes the Geneva gear 153 'on shaft 28 to drive pinion 154 through one tens step and rotate the tens disc 213 and cams 216, 217 backwards. Similarly, the units disc 211 is set backwards by the shaft 22 acting through the shaft 28, the sun and planet gears of differential E, and the gears 81, 82, so that the two discs 211, 213 take up positions corresponding to the forthcoming reduction of credit. When the letter is inserted it is printed with the 18 cents value, and the shaft 112 carrying the mutilated gears 110, 111 is rotated to drive the pinions 26u, 26t and reduce the credit shown on the gears 18u, 18t to 4 cents. Return of selector shaft 22 to zero position. When, as in the case just described, after a printing operation the remaining credit, 4 cents, is less than the amount, 18 cents, corresponding to the selector shaft position, the selector shaft is automatically returned to its zero position by the means shown in Figs. 35 and 36. The selector shaft can then be rotated to select 4 cents or less for printing another letter or letters, but if a greater value is required, more coins must be inserted. The selector shaft is returned to zero when a solenoid 171 is energized, this solenoid releasing a catch 241 which allows a pawl to engage a continuously-rotating ratchet-wheel and drive the selector shaft back to its zero position through g
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en
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GB-642618-A
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GB-574248-A
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GB
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A
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A
| null | 1948-02-26
| null |
C07D277/80
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MINGASSON GEORGES
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Process for obtaining an organic product containing nitrogen, sulphur and oxygen and its application as vulcanisation accelerator
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en
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An organic compound containing nitrogen, oxygen and sulphur and thought to be the dimethylamide of benzthiazole-2-sulphuric acid of the formula <FORM:0642618/IV (b)/1> is prepared by oxidizing 2-mercaptobenzthiazole or 2 : 21-dibenzthiazyl disulphide in the presence of dimethylamine, e.g. in an aqueous solution. The oxidizing agent may be sodium chlorite, sodium hypochlorite or hydrogen peroxide. The reaction mixture may be allowed to stand until the organic compound crystallizes. The product yields benzthiazole and dimethylamine when treated with hot dilute hydrochloric acid, and 2-hydroxybenzthiazole, o-aminothiophenol and dimethylamine when treated with dilute sodium hydroxide. Specification 452,044 is referred to.ALSO:An organic compound containing nitrogen, sulphur and oxygen, prepared as in Group IV (b) and thought to be the dimethylamine of benzthiazole-2-sulphinic acid of the formula <FORM:0642618/V/1> is used as accelerator in the vulcanization of natural or synthetic rubber, e.g. G.R.S. In examples: (5) a mixture comprising natural rubber, zinc oxide, sulphur, stearic acid and the above organic compound is vulcanized; (6) a mixture similar to (5) and containing in addition "Cosmobile" black and pine tar is vulcanized; (7) G.R.S. rubber is used in place of the natural rubber in (6) and is vulcanized. Specification 452,044, [Group IV], is referred to.
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en
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GB-1292941-A
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GB-577971-A
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GB
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A
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A
| null | 1971-03-02
| null |
C08F279/04
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CUSANO CARMEN MICHAEL
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Method of producing an acrylonitrile/ butadiene/alpha-methyl styrene resin
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en
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1292941 Cross-linked polybutadiene graft polymers TEXACO DEVELOPMENT CORP 2 March 1971 5779/71 Heading C3G A synthetic resin which is a graft polymer of acrylonitrile and alpha-methyl-styrene on a cross-linked homopolymer of butadiene or cross-linked copolymer of butadiene with 1 to 10 wt. per cent of methacrylic acid is made by first polymerizing under aqueous emulsion polymerization conditions at a pH of between 5À5 and 8, butadiene or a first mixture of butadiene and 1 to 10 wt. per cent of methacrylic acid in the presence of between 2 and 6 wt. per cent of a cationic emulsifier to form an aqueous latex containing a first polymer which is a cross-linked homopolymer of butadiene or cross-linked copolymer of butadiene and 1 to 10 wt. per cent of methacrylic acid having a gel content between 60 and 90 wt. per cent and an average particle size between 400 and 1500 Š, secondly polymerizing under aqueous emulsion polymerization conditions, at a pH of between 5À5 and 8, an aqueous latex of said first polymer with a mixture of acrylonitrile and alpha-methylstyrene under aqueous emulsion polymerization conditions in the presence of between 2 and 6 wt. per cent of a cationic emulsifier, to form said graft polymer, said emulsifier comprising one or more compounds of the general formula where x is 12, 14 or 16, R<SP>1</SP> and R<SP>2</SP> are H or CH 3 and R<SP>3</SP> is H, CH 3 or benzyl. The emulsifier may be n-dodecylammonium chloride or a mixture of C 12 , C 14 or C 16 n-alkyldimethyl-benzylammonium chlorides.
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en
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GB-576789-A
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GB-578844-A
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GB
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A
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A
| null | 1944-03-29
| null |
B23G1/26
| null |
Improvements in or relating to screw-tap wrenches
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en
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576,789. Wrenches. MILLER, J. March 29, 1944, No. 5788. [Class 61 (iii)] A screw-tap holding wrench comprises a square part 1 with screw-threaded ends engaged by handles 2, 3 for closing the jawmembers 5, 8 which are formed with a number of pairs of screwtap holding jaws 7, 9 so that when one pair of jaws becomes worn another pair may be brought into use. Springs 10 hold the jawmembers apart.
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en
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GB-574866-A
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GB-580441-A
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GB
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A
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A
| null | 1941-05-05
| null |
A01N37/42
| null |
Prevention and destruction of weeds
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en
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Weed-killing preparations comprise a carboxylic acid (or soluble salt thereof) of formula R.CO.X.CO2H in which R stands for phenyl or naphthyl, X for either -CH2,CH2-, -CH=CH-or a phenylene radical to which the R.CO-and -CO2H groups are attached in the ortho positions and in which the phenyl, naphthyl and phenylene groups may carry methyl or halogen substitutes together with fertilizers, solid soil conditioning agents or solid inert diluents. Acids or salts of benzoyl-o-benzoic acid, 41-chloro-2-benzoylbenzoic acid, and 41-methyl-2 benzoylbenzoic acid are mixed in examples respectively with chalk, ammonium sulphate and hop manure, but 31 amino-41-chloro-benzoyl-benzoic acid, and beta-(1-naphthoyl) propionic acid are also referred to. Other manures specified are basic slag, potash salts, superphosphates, and peat manure, other soil conditioning agents hydrated or ground lime, whilst sand, talc and clay are referred to as inert diluents.
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en
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GB-571044-A
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GB-581244-A
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GB
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A
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A
| 9803-06-06
| 1944-03-29
| null |
B44D3/04
| null |
Improvements in or relating to artist's colour boxes and pallettes
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en
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571,044. Artists' painting appliances. LIEBETRUTH, Ltd., F., and LIEBETRUTH, F. March 29, 1944, No. 5812. [Class 11] Pans 3 containing artists' colours are secured to boxes 1 or palettes by means of channels formed of resilient walls in which the pans are held by a grip which prevents non-intentional displacement. The wall's may be formed of a U-shaped metal member 2a secured to a box or. palette by means of soldering &c., or the walls may be formed' of a pair of spaced angle-section metal elements 2. The walls may be bent-up from the base of the box. The walls may be provided with beaded edges to engage rims 5 on the pans 3, which may be formed with tapered walls to cause a combined gripping and wedging action. A brush-receiving compartment 10 is provided between two channels.
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en
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GB-452866-A
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GB-585435-A
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GB
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A
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A
| null | 1935-02-23
| null |
C07C59/13
| null |
Manufacture of organic compounds containing acid salt-forming groups
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en
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Organic compounds having an acid character and suitable for use as wetting, emulsifying, or dispersing agents are prepared by causing an aromatic or hydroaromatic hydroxyl compound which is substituted in the nucleus at least once by an aliphatic radical having more than three carbon atoms, or an aromatic-aliphatic radical, to react with an aliphatic etherifying agent which contains an acid salt forming group whose carbon chain is interrupted at least once by oxygen nitrogen or sulphur. The compounds so produced have the general formula R--O--R1--X, where R is an aromatic or hydroaromatic radical which contains as a substituent at least one aliphatic or aromatic-aliphatic radical with more than three carbon atoms and may contain another substituent. R1 is an aliphatic radical, the carbon chain of which is interrupted at least once by oxygen, nitrogen or sulphur, and X is an acid salt forming group. Alkylated aromatic or hydroaromatic bodies mentioned are para-n-butylphenol, amylcresol, di-isobutylphenol, isohexylnaphthol, oleylphenol, isododecylphenol, isooctyl-resorcinol, di-isobutylcyclohexanol, isohexylcyclohexanol, and iso-octyl-methylcyclohexanol, as an example of the second component there may be mentioned b -chlorodiethylether-b <1>-sulphonic acid (Cl--CH2.CH2.O.CH2.CH2.SO3H). The compounds of the present invention may also be made in stages. For example, one of the above aromatic or hydro-aromatic hydroxy compounds may be caused to react with an aliphatic etherifying agent having an uninterrupted carbon chain but capable of undergoing further reactions, and the intermediate product thus formed, caused to react with a halogen substituted aliphatic carboxylic or sulphonic acid, or a polybasic aliphatic carboxylic acid. Examples of materials which are condensed to form the intermediate products are aliphatic radicals substituted by hydroxyl, sulph-hydryl, or a primary or secondary amino group, or an aliphatic radical capable of forming such a group (ethylene oxide, ethyleneimine, ethylene sulphide). The acid salt forming group is introduced at a later stage. Where a halogen hydrin or an alkylene oxide is used, the intermediate product has the probable constitution <FORM:0452866/IV/1> where R is an aliphatic hydrocarbon radical. Before introducing the acid group it may be an advantage, or in the case of the introduction of a radical of a polybasic oxygen containing mineral acid it is necessary, to repeat once or several times the reaction with a halogen hydrin or an alkylene oxide whereby an intermediate product is formed of the probable constitution <FORM:0452866/IV/2> where R is an aliphatic hydrocarbon radical, and X is 1 or a higher whole number. The acid salt forming group is introduced in known manner, for example, by reaction with a halogen fatty acid, by esterification with one carboxyl group of a dibasic aliphatic carboxylic acid, by introduction of a radical of a polybasic oxygen containing mineral acid, or by introducing a sulphonic acid group. In an analogous manner there may be obtained bodies in which the aliphatic radical is interrupted by nitrogen or sulphur. Thus the above aromatic or hydro-aromatic hydroxy compounds may be caused to react with an alkylene sulphide or an alkylene imine to yield intermediate products of the type <FORM:0452866/IV/3> and <FORM:0452866/IV/4> respectively. These products are then caused to react with a halogen fatty acid as before. Alternatively an alkylphenol or an alkylphenol hydroxyalkylated in the hydroxyl group may be esterified with thiodiglycollic acid, or an alkylated phenol reacted with a halogen-alkyl sulphonic acid, the corresponding sulphochloride made therefrom reduced to the sulphinic acid and thus reacted with a halogen fatty acid to yield <FORM:0452866/IV/5> In examples: (1) para-isohexylphenol is reacted in alcoholic solution with glycol chlorhydrin. The product is treated with sodium ethylate and then reacted with sodium chloro-acetate in xylene solution; (2) para-isobutylphenol is reacted with ethylene oxide at 140 DEG C. in the presence of alkali, and the dioxyethyl ether of para-isobutylphenol treated with sodium and then reacted with sodium chloracetate. Instead of para - isobutylphenol, para - isobutylcyclohexanol may be used; (3) para-isododecylphenol are etherified as in example (1) and the ether so obtained treated in methyl alcoholic solution with the sodium salt of b -chloropropionic acid; (4) para-oleyl-ortho-cresol is reacted with ethylene oxide as in example (2) to yield trioxethyl-oleyl-cresol which is then treated first with sodium and then with sodium chloracetate in decahydronaphthalene solution; (5) para-isohexyl-ortho-chlorophenol is treated with ethylene oxide, sodium ethylate, and sodium chloracetate as described above; (6) 1-iso-octyl-4-cyclohexyl-glycol ether is treated with sodium ethylate and the sodium salt of chlorethane-sulphonic acid according to the method described in p example (2). Instead of the sodium salt of chlorethane-sulphonic acid there may be used the sodium salt of chloracetic acid; (7) ortho-benzylphenol is reacted with ethylene chlorhydrin to give the corresponding ortho-benzylphenylglycol ether which is then treated in xylene solution with sodium amide. When the evolution of ammonia ceases, sodium chloracetate is added to give the sodium salt of ortho-benzylphenyl-glycol ether-acetic acid. By starting with parabenzylphenol, the corresponding para-benzylphenylglycol ether-acetic acid is obtained. If ortho- or para-benzylphenol is reacted with ethylene sulphide, there is obtained the ortho- or para-benzylphenoxyethylhydrosulphide, which may be reacted with chloracetic acid in a manner similar to that described above to yield ortho- or para-benzylphenoxyethylthioacetic acid; (8) para-isononylphenol is reacted with ethylene chlorhydrin to form para-isononylphenylglycol ether which is then treated first with sodamide in xylene and then with sodium chloracetate to give the sodium salt of para-isononylphenylglycol ether-acetic acid. Nonylphenol when reacted with ethylene sulphide gives nonylphenoxyethylhydrosulphide which may be converted as described above to nonylphenoxyethyl-thioacetic acid; (9) the phenyl ester of lauric acid is transformed into para-laurophenone, the ketone is reduced to para-n-dodecylphenol which is then heated in a closed vessel with ethyleneimine to give paradodecyl - phenoxethylamine. This amine is heated with sodium chloracetate in the presence of an acid binding agent to give para-n-dodecylphenoxethyliminodiacetic acid. Instead of the sodium salt of chloracetic acid, there may be used an equivalent amount of the sodium salt of chlorethane sulphonic acid to give para-n-dodecylphenoxethyliminodiethanesulphonic acid; (10) the mixture of alkylphenols prepared by causing hardened fish oil fatty acid to react with phenol in the presence of borontrifluoride, and reducing the mixture of ketones is boiled in alkaline alcoholic solution with b -chlordiethylether-b <1>-sulphonate to yield the mixture of sodium salts of alkylphenoxyglycolether-ethanesulphonic acids; (11) into a hot alkaline alcoholic solution of octylphenol there is added sodium b -chlordiethylether-b <1>-sulphonate, and the mixture boiled for 5 hours under reflux to yield sodium octylphenoxy-ethoxy-ethane sulphonate. In the form of their water soluble salts, the compounds of the present invention strongly reduce surface tension, and are therefore used as wetting, emulsifying, dispersing, and cleansing agents in the textile industry and leather industry. They may be used alone or in admixture with soaps or soap-like agents such as the sulphonic acid esters of alcohols of high molecular weight, or the condensation products of natural fatty acids with hydroxyethane- or aminoethane-sulphonic acids, or sarcosine. They may also be used with hardness reducing agents such as sodium pyrophosphate and sodium metaphosphate.
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en
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GB-1411851-A
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GB-588473-A
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GB
|
A
|
A
| null | 1973-02-06
| null |
F28F13/12
| null |
Heat exchange conduit
|
en
|
1411851 Heat exchange elements RALIFOSS AMMUNISJONSFABRIKKER AS 6 Feb 1973 [10 Feb 1972] 5884/73 Heading F4S A heat exchanger tube 1 (e.g. of metal or metal alloy) is formed with internal fins 2 extending parallel with the longitudinal axis of the tube, and at least one additional element 3 is disposed within the tube and comprises a twisted strip having its principal axis parallel to the longitudinal axis of the tube. The element 3 which is intended mainly for tubulating and can therefore be of a plastics material, may bear against the extremities of the ribs 2, or it may be under tension or supported within the tube by means (unspecified) other than the fins 2. The tube cross-section may be non-circular (e.g. rectangular, Fig. 4), and there may be a plurality of the elements 3 side-by-side within the tube (Fig. 3). The tube may have external fins (4, Fig. 5), and all the fins may be either integral with or attached to the tube wall.
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en
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GB-832800-A
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GB-593657-A
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GB
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A
|
A
| null | 1957-02-21
| null |
E02F3/34
|
STEPHENSON LOUIS JOHN
|
Mechanical appliances for earth moving
|
en
|
832,800. Shovelling machines. ANTHONYHOISTS Ltd. Feb. 17, 1958 [Feb. 21, 1957], No. 5936/57. Class 68(1) A control mechanism for ensuring that the scoop of an overthrow shovel attachment maintains a predetermined angle to the horizontal as it is swung up and over the supporting means by an arm or arms pivotably supporting the scoop and rotatably mounted on the supporting means for movement in a vertical plane. The scoop 11 is rotated relative to the arms 10 by an hydraulically actuated ram 16 of a servomotor system consisting of the jack 16, a valve 21, 27, and linkage 30, 31, 34, 35, the valve being operated by the linkage which causes the ram to maintain the scoop at the required angle to the horizontal as the linkage takes account of the swinging of the arms. The angle of the scoop to the horizontal can be varied by a hand lever 37 associated with the linkage by a link 36. The scoop may be replaced by other tools appropriate for association with the arms and control mechanism.
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en
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GB-994091-A
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GB-596763-A
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GB
|
A
|
A
| null | 1963-02-14
| null |
C07C69/54
|
CHRIST B UNO
|
Continuous production of acrylic esters
|
en
|
Acrylate esters of C2- 4 alcohols are made by continuously contacting b -propiolactone with a C2- 4 olefine in the presence of sulphuric acid at a concentration of 70% to 100% by weight and at a temperature of 65 DEG to 130 DEG C., the olefine being introduced into the reaction vessel at such a rate that the ratio of the amount thereof reacted to supplied is between 1: 10 and 1: 100, and may be supplied in admixture with an inert gas. The by-products are acrylic acid, dialkyl sulphates, ethers and alkanols. The examples describe the conversion of ethylene and propylene to ethyl acrylate and isopropyl acrylate respectively.
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en
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GB-285259-A
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GB-599827-A
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GB
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A
|
A
| null | 1927-03-03
| null |
A61C13/00
| null |
Improvements relating to artificial teeth
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en
|
285,259. Fogg, E. March 3, 1927. Teeth artificial.-Wing pieces for artificial dentures comprise a projecting portion to engage the front of the natural gum and a retaining portion adapted to be detachably received in a socket or the like formed in the denture during or subsequent to manufacture. The wings are formed of metal or other material permitting of manipula. tion to fit the gums. In the form shown in Fig. 2 the gum-engaging part a is offset from the retaining part b fitting in the denture c. In modifications the part b may be formed as a split-pin fitting a socket in the denture, or may be bevelled to fit an undercut groove and may be further secured by screws or, according to the Provisional Specification, by cement or pins. Fig. 5 shows a form in which the part b passes through an aperture in the flange f<1> of a metal plate f embedded in the vulcanite denture, and the part a is formed with a bridge-piece a<1> removably engaging the part b. In another modification, Fig. 6, a threaded retaining portion b, integral with or engaging a tapped socket a<2> on the gum engaging portion a, engages a threaded socket f<3> embedded in the denture.
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en
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GB-250519-A
|
GB-612626-A
|
GB
|
A
|
A
| null | 1926-03-04
| null |
A45D2/04
| null |
Improvements in hair curlers
|
en
| null | null |
GB-1244144-A
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GB-617670-A
|
GB
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A
|
A
| null | 1970-02-09
| null | null | null |
Fluorocarbon isocyanurates
|
en
|
1,244,144. 1,3,5-Triazines. ALLIED CHEMICAL CORP. 9 Feb., 1970 [19 March, 1969], No. 6176/70. Heading C2C. Compounds of formula wherein X is -COOR 1 or -OR 2 , in which each R 1 is hydrogen, -CH(CF 3 ) 2 , -CF(CF 3 ) 2 , -(CH 2 ) m (CF 2 ) n CF 2 Y or -(CH 2 ) m (CF 2 ) p CF 2 OCF(CF 3 ) 2 , each R 2 is hydrogen or -CO(CH 2 ) q (CF 2 ) n CF 2 Y or-CO(CH 2 ) q ,(CF 2 ) p CF 2 OCF(CF 3 )2; Y is hydro-, gen, fluorine, chlorine or bromine, m is 1 to 10, n is 1 to 16, p is 1 to 13 and q is 0 to 10, provided that not more than two of the radicals R 1 and R 2 are hydrogen and that the number of carbon atoms in each radical R 1 or R 2 does not exceed 20, are prepared by esterification. Products containing one or two -COOH groups may be separated in the form of their salts. The products are oil and dirt repellents for textiles.
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en
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GB-277234-A
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GB-618427-A
|
GB
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A
|
A
| null | 1927-03-05
| null |
B66F5/02
| null |
Lifting jack
|
en
|
277,234. Nilson, L. D. March 5, 1927. Jacks. -A ratchet and rack and pinion jack having an extended lift combined with a minimum height when lowered, has a lifting member comprising a toothed sector which can be moved from its lowered horizontal position within the jack frame to a vertical lifting position. The frame has spaced beams 11 and is mounted on wheels 15 at one end and has a cross member 17 at the other end carrying castor wheels 18. The lifting member comprises a double toothed sector 19 having pivoted thereto a socket 27 carrying the crutch 28, adjustable by a ratchet device 29. The socket is fitted with guide rods 31 secured to the frame by pin and slot connections 33. The rack teeth 21 on the sector are engaged by pinions 22, Fig. 8, having lateral flanges 25 engaging with the edges of the sector to take the load and also having between them a ratchet wheel 23. The lifting pawl 36 is carried by a pair of plates 38 loosely mounted on a shaft 13 and the plates are connected by links 42<a> to a toothed quadrant 43 on a, shaft 32. The operating lever 44 is adjustably connected to the quadrant 43 by means of a toothed block 40, the quadrant also having a pedal 74 for foot operation when raising the jack to the load. The holding pawl 51 is mounted on a shaft 52. A tension spring 48 connected to the frame and to the linkage 42<a> normally holds the lifting pawl in its starting position. In operation, the lever 44 is rocked and through the lifting pawl rotates the ratchet wheel and pinions. and raises the sector and crutch, the holding pawl functioning in the usual way. To lower the jack, a bent lever 73 is rocked and through its spring-pressed connecting linkage 68 engages a notched head 59 with a pin 62 on an extension arm of the holding pawl. The head 59 forms an extension of a rod 58 sliding in a block 57 mounted on an extension arm of the lifting pawl and positioned on the rod by opposed springs 66. With the parts in this position the pawls are interconnected and by rocking the lerer 44 the opposed springs 66 are alternately compressed and expanded, the arrangement being such that the pawls are engaged and disengaged alternately and so lower the load step by step.
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en
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GB-1422293-A
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GB-619474-A
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GB
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A
|
A
| null | 1974-02-11
| null |
H01M4/16
| null |
Supports for the active material of lead accumulator electrodes
|
en
|
1422293 Electrode plates for lead-acid batteries BATTELLE MEMORIAL INSTITUTE 11 Feb 1974 [12 Feb 1973 18 June 1973] 06194/74 Heading H1B An electrode is made by a method similar to that disclosed in Specification 1,422,292 except for the forming of the contact lug. As shown, the band 1 of glass fibre felt acting as a support for the lead-based active material is unwound from a drum 2 and is moved stepwise through the process stages A, B, C in sections corresponding to the individual electrodes which are formed by making transverse cuts across the band in stage C. A lug 3 is formed on the band 1 at intervals, corresponding to the successive electrodes, in the stage A by apparatus comprising a mould having shells 4, 5 which are clamped against opposite faces of the band. The mould is maintained at 50‹ C. by a heater 6 and has a nozzle 11 into which lead is injected from a molten lead ejector (Fig. 3, not shown). On solidification, the lead is formed by the mould to provide a lug 3 with anchoring fingers 3a-3f extending over both faces of the band. In stage B active material in powder form comprising a mixture of PbO and Pb is introduced into the interstices of the band. The powder mixture in the form of a suspension in deionized water is contained in a reservoir 12 and introduced into the band by a suction and filtration unit 13. The individual electrodes are obtained from the band by a cutting unit 14 and stored in a tank 15. In a modified method, the fibres of the band are metallized with molten lead-antimony alloy before stage A.
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en
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GB-781693-A
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GB-628656-A
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GB
|
A
|
A
| null | 1956-02-29
| null |
F16D3/54
| null |
Improvements in resilient shaft coupling
|
en
|
781,693. Universal couplings. UNITED STATES RUBBER CO. Feb. 29,1956 [May 17, 1955], No. 6286/56. Class 80 (2). Hubs 11, 12, on aligned shafts 13, 14, have axial grooves 18 engaged by ribs 17 on a coupling sleeve 15. The sleeve 15 has a thin flexible load carrying band 20 made of one or more woven fabric layers 21, 22. The ribs 17 are of rubber and are bonded to the band 20 and to a protective cover 25. The band 20 may also include a layer of rubber. The yarns of the woven fabric layers 21 may extend circumferentially and axially of the sleeve 15 or at an angle thereto. In one construction the band 20 includes a closely helically wound cord. The sleeve 15 may be made by building up the parts on a grooved cylindrical mound and then vulcanizing it under pressure,
|
en
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GB-804946-A
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GB-630857-A
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GB
|
A
|
A
| null | 1957-02-25
| null |
F01L1/14
| null |
Improvements relating to slidable tappet devices of internal combustion engine fuel injection pumps
|
en
|
804,946. Fuel injection pumps. DAIMLERBENZ A.G. Feb. 25, 1957 [April 4, 1956], No. 6308/57. Class 102(1). [Also in Group XXVI] In a fuel injection pump of an internal combustion engine a wall 1 separates the pump space 2 from the camshaft space 3. A tappet 5 slides in a bore of the wall 1 and carries a cam follower roller 6. A cylindrical rubber spring 12, surrounding the lower end of the pump plunger 7, bears at one end against the tappet or is sealed to a plate 13 and bears against a cover plate 10 or is sealed to a plate 14 at the other end, thus forming an effective seal between the pump space 2 and the camshaft space 3. The plate 14 may be additionally sealed at its periphery by packing 16 and the pump plunger 7 may be fitted with a gland at the point 11 where it passes through the plate 10. In a modified form the rubber spring 12 may be stiffened and strengthened by a coil spring embedded and vulcanised in the rubber spring.
|
en
|
GB-540231-A
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GB-632940-A
|
GB
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A
|
A
| null | 1940-04-08
| null |
B22D19/02
| null |
Improvements in and relating to the casting of metals
|
en
|
540,231. Ammunition projectiles. STANTON IRONWORKS CO., Ltd., and WILSON, P. H. April 8, 1940, No. 6329. [Class 9 (i)] [Also in Group XXII] A cast iron shell case is strengthened against propelling thrust, without reducing the bursting-charge space or satisfactory fragmentation, by inserting in the mould reinforcing members of higher melting point at positions to produce the desired result. The base 1 of an explosive shell 2 may be strengthened by partly embedding in the bottom of the mould 4 a disc 3 of steel having varying diameters so that it becomes dove-tailed to the casting. The disc may be riveted over prior to machining. A steel basket 6 may be arranged in the mould to become embedded in the shell and ensure satisfactory fragmentation on explosion. The reinforcement may be used with the centrifugal process described in Specifications 540,229 and 540,230, [both in Group XXII].
|
en
|
GB-140891-A
|
GB-633619-A
|
GB
|
A
|
A
| null | 1919-03-13
| null |
C10J3/34
| null |
Improvements in apparatus for agitating the fuel in gas generators or the like and means for operating the same
|
en
|
140,891. Bentley, G. H., and Appleby, E. G. March 13, 1919. Charges, agitating.-A poker for agitating the fuel in a gas-generator is balanced by a weight so that it rises in accordance with the height of the fuel. In the apparatus shown, water-cooled pokers 12, having bases formed so as to cause them to rise in conformity with the top of the fuel, are carried in a revolving. frame 10 mounted on ball bearings 101. They are counterbalanced by weights 141 on levers 14 having at the other end toothed segments 13 gearing with racks 123 on the pokers. The levers 14 may be fixed, so that the poker does not rise or fall, by means of a pin inserted through a hole 144 in the lever bracket 143 into one of the holes 145 in the segment 13. The frame 10 is rotated by a pinion 103 gearing with a circular rack 102 on it. Fuel is fed by a drum 16 rotated by the rotation of the frame 10 through an epicyclic train gearing with a fixed rack 167, as described in Specification 135,272.
|
en
|
GB-252328-A
|
GB-645726-A
|
GB
|
A
|
A
| null | 1926-03-08
| null |
C08K5/12
| null |
Process for treating cellulose derivatives
|
en
|
252,328. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). May 20, 1925, [Convention date]. Addition to 245,469. Void [Published under Sect. 91 of the Acts]. Plastic compositions containing cellulose esters and ethers.-The process of the parent case is modified by employing for the solution of the cellulose ether or other cellulose derivative excluding nitrocellulose, a di-amyl ester of phthalic acid, or a mixture of such esters, for example, as is produced by the esterification of commercial amyl alcohol. The products may be used in the manufacture of films, threads, plastic bodies and artificial leather.
|
en
|
GB-570583-A
|
GB-646741-A
|
GB
|
A
|
A
| null | 1941-05-20
| null |
H01J61/10
| null |
Improvements relating to metal vapour electric discharge lamps
|
en
|
570,583. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. May 20, 1941, No. 6467. [Class 39 (i)] In high - pressure metal vapour lamps of the compact source type where there is a tendency to produce a flame 6, Fig. 4, at an angle to the arc 5 due to ions carried by convection currents, a magnetic field is provided strong enough to disperse this flame or direct it along the arc, but not strong enough to disturb the arc. The harmful effect of the flame is obtained only with the electrodes 2, 3 at an angle to the vertical and with an electromagnet supplying the field this may be switched on only as the electrodes leave the vertical position; or a resistance may be cut out of the magnet circuit to increase the field on displacement. A horseshoe or bar magnet may be used. The faces of the electrodes may be at an angle to each other, with their nearest points uppermost with the lamp out of the vertical. The lamp may have an auxiliary electrode 4 and a filling of mercury and a starting gas such as neon and/or argon.
|
en
|
GB-608825-A
|
GB-648146-A
|
GB
|
A
|
A
| null | 1946-03-01
| null |
B66F7/06
| null |
Improvements relating to stands for motor-cycles
|
en
|
608,825. Stands for motor-cycles. AERONAUTICAL & GENERAL INSTRUMENTS, Ltd., and LONG, C. E. March 1, 1946, No. 6481. [Class 136 (i)] [Also in Group XXX] A lifting appliance and stand for motorcycles comprises a hinged structure constituted by a frame 1, a load platform 6 and hinged legs at both ends arranged for the legs 3 to be turned fully to lower that end and the legs 5 at the trailing end to be limited in their movement so that by turning one of the hinged legs 3 by means of a lever bar the platform can be raised from a position sloping down from the trailing end and in which a motor-cycle can be wheeled on to the platform to a position in which the motor-cycle is raised and rests on the platform which is then substantially horizontal. Platform 6 is made of flat sheet metal with angle iron edge stiffeners 7 and has cross-pieces 8, a removable section 9, a front stop 10, a fixed strip 34 and an adjustable cross-strip 35. The legs 3 are fixed to a transverse angle bar 11 which can turn on front pins 12 fixed in blocks 2 and similarly trailing legs 5 are secured to an angle bar 13 turning on pivot pins 14 fixed in block 4. A lead-on plate 15 fixed to an end member 16 of the frame rests on the bar 11. The legs 3 are fixed at their upper ends to a transverse angle bar 18 formed with flat ears 19 from which project inwardly pins on which a plate 20 can turn. The platform can be lifted off the pins for storage purposes. The platform can rest on a transverse angle bar 21 secured to the trailing legs 5, the movement of which is limited by a stop bracket consisting of a pair of struts or props 22 connected by a rod engaged by a transverse angle bar 24. The legs 3 are raised, by inserting a lever bar 17 into the open end of one leg, until the stand is in a horizontal position, further raising lifts the end until the legs are upright, meanwhile projections 25 on the platform 6 contact the transverse angle bar 21, the legs 5 are turned until they are upright and the trailing end is lifted. A locking arm is provided with a notch to engage a frame cross-bar. The legs 5 are locked in an upright position when a notch in the arm engages the bar 24. The platform is lowered by the reverse rotation of legs 3.
|
en
|
GB-1539604-A
|
GB-653376-A
|
GB
|
A
|
A
| null | 1976-02-19
| null |
F25J3/06
| null |
Distillation
|
en
| null | null |
GB-719331-A
|
GB-659252-A
|
GB
|
A
|
A
| null | 1952-03-13
| null |
B01D46/04
|
UMNEY LAURIE EDWARD RICHARD
|
Improvements in or relating to the cleaning of dust recovery air filters
|
en
|
719,331. Gas filters. VOKES, Ltd. March 3, 1953 [March 13, 1952], No. 6592/62. Class 8 (2). An air filter, comprises a filter bag 13, Fig. 1, of flattened cross-section stretched over a rigid frame 17, Fig. 2, having coil springs 19 stretched between opposite sides so as to contact the interior of the bag and is cleaned by reciprocating the frame 17 thereby inducing lateral vibration of the springs 19. A plurality of such bags have their open ends secured around suitable apertures of a plate 5 which is resiliently mounted within a casing 1 so as to separate an inlet 2 and an outlet 3 thereof by rubber strips 6 and is displaced upwardly by abutment of a cam 9 against a pad 11 secured to the plate; the return stroke under gravity being arrested by abutment of a guide bracket 7 against a casing plate 12. Each frame 17 is constructed of channelling having pressed out legs 18 to which the ends of the coil springs 19 are attached.
|
en
|
GB-252813-A
|
GB-660125-A
|
GB
|
A
|
A
| null | 1925-03-11
| null |
A47H15/00
| null |
Improvements in or relating to curtain suspension devices
|
en
|
252,813. Allen, A. J. March 11, 1925. Curtains, suspending. - A runway for curtain runners is formed of two parallel strips b spaced apart by rigid transverse members d certain of which constitute attaching brackets. The runners each comprise a wire suspending loop or hook k the lower end of which is cranked inwardly and bent to form a loop or hook k<1>, the upper end being bent upwardly to carry an apertured grooved roller c or a grooved sliding block. For the master runners the upper end of the wire is extended inwardly and formed with an eye to receive the operating cord or to accommodate a small wire clip to grip the cord. In a modified master runner a pair of rollers are carried by a suspension loop or frame having a rearward extension formed with two spaced eyelets, through which the cord is passed, and an intermediate prong to afford a secure grip on the cord. Attachments carrying cord guiding rollers are provided at the ends of the runway and at bents.
|
en
|
GB-382847-A
|
GB-666032-A
|
GB
|
A
|
A
| null | 1932-03-05
| null |
B65H3/08
| null |
Improvements in or relating to sheet feeding devices
|
en
|
382,847. Feeding sheets. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Continental Can Co., Inc. ; 100, East 42nd Street, New York, U.S.A.) March 5, 1932, No. 6660. [Class 100 (i).] In connection with a machine for feeding metal &c. sheets from a stack S to a slitting or like machine, in which the rear edge of the top sheet is raised by vertically reciprocating suction devices 5 and is advanced to the slitting- machine by means of a reciprocating pusher 13, the separation of the sheets is effected by means of a suction separator 28 which acts on the front edge of the sheet and after it engages the top sheet by suction is retracted and lifted so as to buckle the top sheet to ensure its separation from the sheet beneath it. The separation 28 is also vibrated after it is raised so as to prevent the adhesion of the underlying sheet to the top sheet. The separator 28 is pivoted in one of several holes 32 in a lever 31 which is oscillated by a cam 38 on a shaft 10. The cam 38 is formed with a series of recesses 42 for vibrating the sucker 28 after it has raised the front edge of the top sheet. The suction devices 5 are vertically reciprocated by cams 9 on the shaft 10, and act to raise the rear edge of the sheet after the separator 28 has completed its action. Pressing devices 27 are arranged near the devices 5 and cause the sheet to be buckled by the devices 5 to prevent double feed, and the devices 5 are lifted quickly by a radial part 9a of the lifting cams 9 for the same purpose. The finger 13 is connected to a crosshead which is reciprocated by a link 17 and a lever 20 oscillated by an eccentric. The suction in the devices 5, 28 is controlled by valves.
|
en
|
GB-176784-A
|
GB-670722-A
|
GB
|
A
|
A
| null | 1922-03-07
| null |
F01L31/16
| null |
Valve gear for steam engines
|
en
|
176,784. Lentz, H. March 9, 1921, [Convention date]. Cam gears; valve-spindle guides ; beat or lift valves. -In a locomotive cylinder, lift inlet and exhaust valves 5, 6 are arranged coaxially at each end of the valve- .chest, and are operated by oscillating, central inlet and exhaust cams 9, 16. One of the seats of each doublebeat inlet valve is arranged on the valve-spindle guide. Each pair of valves has a common closing pressure so that when one valve is opened the other is closed more tightly. The valves to the left have a spring 13; those to the right, fluidpressure means comprising a differential piston 25 acting on the inlet valve and housed in the hollow exhaust-valve spindle. The cam-levers 17, 19 are connected by links 18, and are simultaneously rocked by a compound linkage gear.
|
en
|
GB-835548-A
|
GB-671256-A
|
GB
|
A
|
A
| null | 1956-03-02
| null |
C08G8/28
| null |
Manufacture of phenol-aldehyde resins, condensation resins derived solely from furfuryl alcohol and condensation resins of furfural with another aldehyde
|
en
|
Phenol-aldehyde resins or condensation resins of furfuryl alcohol, or of furfural with another aldehyde may be prepared in two stages: (i) 10-50% by weight of the constituents to be condensed (including catalyst, if any) is precondensed without carrying the condensation to completion; (ii) the remaining portion is added gradually to the precondensate without the nature of the catalyst, if any, being changed, and is condensed in the pre-condensate while the latter is still at about the condensation temperature and the condensation is completed at about the same temperature or a higher temperature. By gradual addition it is meant that care is taken that only a small portion of the added quantity is reacted at a time and that this small portion is highly diluted in the precondensed resin which enables the heat evolved in the reaction to be readily controlled and dissipated. In the case of phenol-aldehyde resins, the reaction may be terminated by vacuum distillation of the water formed: specified reagents are phenol, cresol, xylenol, resorcinol, formaldehyde, acetaldehyde, propionaldehyde, and, as catalyst in Example (2), cyclohexylamine. In Example (1) furfuryl alcohol is polymerized in the presence of 1% H2SO4 and the reaction is terminated by adding NaOH. In Example (3) furfural and acetaldehyde are reacted in the presence of aqueous NaOH.
|
en
|
GB-715651-A
|
GB-673652-A
|
GB
|
A
|
A
| null | 1952-03-14
| null |
H02J13/00
|
HELLIER WILLIAM HERBERT MORGAN
|
Improvements in or relating to electric signal responsive equipment
|
en
|
715,651. Actuation of switches. STANDARD TELEPHONES & CABLES, Ltd. March 14, 1952, No. 6736/52. Class 38(5) A switch adapted to respond to two suitably spaced D.C. impulses superposed on an A.C. line comprises a contact 18, Fig. 8A, on a spring arm 21 fixed to a rocker 22 pivoted at 51 and controlled by a bowed spring 32. The switch is actuated by one of two cams 12a, 12b on a motor-driven wheel 5 which is caused to make one revolution on receipt of the first impulse. Actuation only occurs however when the second impulse causes a detent 48 to project from the face of the rocker 22 between the wings of the cam as shown in Fig. 8A. As the cam continues to rotate its trailing edge will then operate the switch, the bowed spring 32 snapping into its other position. Should the impulse occur at any other time the switch will not be operated, since, even if the impulse is long enough for the detent to be engaged it will be engaged by the leading edge of the cam and be moved slightly in the other direction. The detent 48 is normally flush with the face of the rocker 22 being biased into this position by a spring on the other side of the rocker, Fig. 7. An impulse energizes an electromagnet R which attracts its armature 41 and operates a lever 40 to depress the detent and cause it to project at the other side, irrespective of the position of the rocker 22. The armature also operates contacts r<SP>1</SP> which complete the circuit to the motor at the first impulse, the motor circuit being thereafter maintained for the revolution by contacts 16, 17 operated by a cam on the wheel 5. Specifications 495,057 and 528,790, [both in Group XXXVIII], are referred to.
|
en
|
GB-100455-A
|
GB-678216-A
|
GB
|
A
|
A
| null | 1916-05-11
| null |
B64C3/48
|
ANTONI GUIDO
|
Improvements in or relating to Aeroplanes.
|
en
|
100,455. Antoni, G., and Antoni, U. May 12, 1915, [Convention date]. Planes, arrangement and construction of.-The wings of aeroplanes have flexible ribs so that the camber can be varied. Fig. 1 shows fexible upper and lower members a, b secured to a distancepiece 0 at the front end and passed through stirrup-shaped brackets d on the centre spar. A hotels made in the front end of each rib to take the front spar la, Fig. 5, the vertical sides of the hole being curved outwardly at the lower front end and at the upper rear end to permit of the rib being turned into the position shown in dotted lines. The upper and lower edges of the hole are made convex inwards. Angles f secured to the spar prevent lateral movement of the ribs. Either or both of the members t, b are tapered in thickness from the centre spar towards either or both ends, but in another form the parts between the front and centre spars are of uniform thickness and the rear parts tapered in thickness. To form a rigid foundation for the wing, the front and centre spars are connected together by struts i, shown in section in Fig. 7, and cross-braced. Saddlepieces p embracing the spars have each a tailpiece q and two extensions s for the attachment of the external stay wires.
|
en
|
GB-1527035-A
|
GB-691376-A
|
GB
|
A
|
A
| 9823-12-04
| 1976-02-21
| null |
H01R12/50
| null |
Electrical connector assemblies
|
en
|
1527035 Electrical connectors AMP Inc 3 Feb 1977 [21 Feb 1976] 06913/76 Heading H2E An electrical connector assembly comprises a forked female contact 3, 3<SP>11</SP> receiving a mating male contact 1 by outward flexure of a first contact arm 5 of the female contact and inward flexure of a portion 16 of the male contact. The female contact comprises the first arm 5, a second arm 6 that is stiffer than the first, and a member, e.g. post 9, extending from the second arm 6. The male contact 1 comprises a base 10 and a resilient contact arm 11, the arm 11 having a first portion 15 extending from the base 10, a second portion 17 extending from portion 15 at substantially 90 degrees thereto, and a third portion 16 extending from the second and generally in an opposite direction from the first. As described, an abutment 12 on male contact portion 16 abuts base 12 to limit flexure of the resilient contact arm 11. The relative flexibility of the first female arm 5 is due to its tapering to a thick portion adjacent yoke 7 that is thinner than the second arm 6. The female contact may be secured to a housing 4 by the post 9 or 9<SP>11</SP> extending through a wall thereof (as shown). Alternatively (Fig. 3, not shown) the second arm (6<SP>1</SP>) may be bifurcated so as to extend on opposite surfaces of a side wall (20) of a housing (4<SP>1</SP>). The connector assembly may be used to connect printed circuit boards orientated at 90 degrees to each other. Alternatively, Fig. 4, the female contact 3<SP>11</SP> may have a post 9<SP>11</SP> provided with a wire receiving structure 26. Both the male and female contacts may be stamped and formed from sheet material.
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en
|
GB-385146-A
|
GB-694132-A
|
GB
|
A
|
A
| null | 1932-03-08
| null |
H05G1/02
| null |
Improvements in or relating to x-ray devices
|
en
|
385,146. R÷ntgen - ray apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 8, 1932, No. 6941. Convention date, March 18, 1931. [Class 98 (i).] In an X-ray installation in which the ray-tube is connected to the H.T. source by cables of the kind having a protective earthed envelope as of metal netting or braid, the cables are provided with a closed covering of flexible material, such as rubber, surrounding the protective envelope. Fig. 2 shows a cable having a core 6 insulated by rubber 7 surrounded by a metal protective braiding 8 covered by rubber 9. Fig. 3 shows an alternative form in which the braiding 8 and rubber 9 shown in Fig. 1, are replaced by a helically wound vulcanized rubber tape 11 the inner side of which is furnished with a metal coating as by powdering or spraying.
|
en
|
GB-553632-A
|
GB-694442-A
|
GB
|
A
|
A
| null | 1942-05-21
| null |
F04C18/344
| null |
Improvements in or relating to rotary vacuum pumps
|
en
| null | null |
GB-326655-A
|
GB-697929-A
|
GB
|
A
|
A
| null | 1929-03-04
| null |
H04M1/08
| null |
Improvements relating to telephone instruments
|
en
|
326,655. Dunlop, S., (Fuld & Co. Telephon. und Telegraphenwerke Akt.-Ges., H.). March 4, 1929. Desk and table sets; wall sets.-A subscriber's telephone set in which the microtelephone is supported horizontally has all the components required for its operation arranged on a base-plate so that the casing may be removed and replaced without disturbing any of the components. The base plate 11, Fig. 1, runs parallel with the bottom and back wall of the casing, and has stamped and bent out lugs which support the components. Among these are the forks 12 for supporting the microtelephone, and the dial 33; the dial 33 is pivoted at 35 to enable the casing 10 to be lifted off vertically, and is supported solely by the casing. The base plate is provided with openings 46, Fig. 4, which serve for passage of the sound of the bells 45 and for suspending the instrument when used as a wall set. In this latter case the dial is set round through 180‹ and is re-pivoted, Fig. 4, and the microtelephone 62 is supported by forks which actuate the releasing switch horizontally instead of vertically. In the desk instrument, Fig. 1, the microtelephone is supported by two forks 12, provided with guide pins 13 passing through holes in the plate 11. Each fork has a longer pin 15, controlled by springs 19, and actuating the reversing contacts 16. Each fork 12 is independently movable 'so that the line is switched off even if the microtelephone is replaced on one fork only. In the wall set, Fig. 4, the forks are replaced by supporting members 53 provided with hooks 54, and the actuating rods 57, controlled by springs 58, bear against a stop 56. A guide 61 constrains the movement of the support 53 to be rotational about the hook 54. A fixed member 63, Fig. 5, provided with a slider 66, which actuates the switch releasing rods 67 when the microtelephone is used, may replace the device employed in the member 53 in Fig. 4. A further modification, Fig. 6, has the contact reversing rod 75 pivoted on the slider 72, Fig. 7, which is in turn pivoted at 71 to the member 70.
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en
|
GB-625880-A
|
GB-698947-A
|
GB
|
A
|
A
| null | 1947-03-13
| null |
F41A13/04
| null |
Device for reducing erosion in a gun barrel by cooling the expanding explosion gases
|
en
|
625,880. Cooling guns. ETUDES ET CONTROLES INDUSTRIELS. March 13, 1947, No. 6989. Convention date, Feb. 12, 1940. [Class 92 (ii)] To reduce erosion in a gun barrel a cooling liquid is injected into points along the barrel to cool the explosion gases, injection commencing before the projectile leaves the barrel. In the form shown in Fig. 2, recoil of the gun carries back a piston 11 in a fixed cylinder 10, forcing cooling liquid from the space 13 through the telescopic tube 15 into the barrel through ports 1, 2 and 3 in the barrel wall. Control of the amount of fluid injected at any instant in the recoil of the gun is effected by actuating a needle valve 19 in the tube 15 by a cam 40 carried by the gun. The space 13 is refilled with cooling liquid by induction through a non- return valve 21 when the gun is run out. In a modification (Fig. 3, not shown), the piston carries a needle of varying diameter which restricts the neck of the conduit 15 and thus varies the rate of injection. The cylinder may be carried by the gun and the piston fixed when the fluid will be supplied to the cylinder through a flexible conduit. In one embodiment (Fig. 6, not shown), the piston is replaced by a heavy weight which exerts pressure on the fluid by virtue of its inertia. Fig. 4 illustrates a system in which the telescopic tube is replaced by a hollow piston-rod 12 which feeds the coolant to the bore. Control of the rate of injection of the coolant is effected by a valve box 33 carried by an extension 12<SP>1</SP> of the pistonrod. This box on moving longitudinally is caused to rotate by a fixed feather 34 which engages in a slot in it and the piston-rod 12 fixed to the box is caused to rotate on its own axis, thereby varying the passage area through valve faces X, Y and X<SP>1</SP>, Y', Fig. 5. A similar valve at another extension of this rod permits the escape of excess fluid which cannot pass to the bore. A device for spraying liquid on to the gases leaving the muzzle is also described.
|
en
|
GB-974821-A
|
GB-703060-A
|
GB
|
A
|
A
| null | 1960-02-29
| null |
A24C5/18
|
SMITH GEORGE
|
Improvements in or relating to tobacco-manipulating machines
|
en
|
974,821. Cigarette-making machines. MOLINS MACHINE CO. Ltd. Feb. 24, 1961 [Feb. 29, 1960], No. 7030/60. Heading A2C. A replaceable "Tufnol" (Registered Trade Mark) insert 140 takes the wear of the nickel air-pervious conveyer band 1 of Specification 895,733. The insert 140 is clamped between brass and mild steel members 9, 10 respectively, and may be in several separate consecutive lengths the downstream one of which has no shoulders 142. Contact between the central part of the insert 140 and the band 1 is prevented by recessing the insert at 143 between apertures 141 therein. In a modification the insert is in two separate portions one on each side of the duct in which the band runs. The Provisional Specification refers to Specification 973,210.
|
en
|
GB-1581100-A
|
GB-704378-A
|
GB
|
A
|
A
| null | 1978-02-22
| null |
B21B17/08
| null |
Inlet giude for a drilling and rolling mill
|
en
| null | null |
GB-118255-A
|
GB-707718-A
|
GB
|
A
|
A
| null | 1918-04-26
| null |
A01D78/16
|
NICHOLSON ARTHUR CLIVE
|
Improvements in Swath Turners, Potato Diggers and the like.
|
en
|
118,255. Nicholson, A. C., and Harby, W. April 26, 1918. Haymaking; potatodiggers.-In a swathturning, potato-digging, or like machine of the type in which the forks are carried by a rotary flyer and their angles with the ground controlled by rods connecting the ends of the forks with an eccentrically disposed stud, the connecting-rods C are made to yield laterally so that any fork B may be pressed backwards should an obstacle be encountered, or should the direction of rotation be reversed the fork will take up the correct position for the new direction of motion. In the form shown, the rods are of curved spring steel giving an automatic adjustment to the position shown in dotted lines when it is desired to drive. the flyer in the reverse direction. In a modification, the connecting-rods are made of springy material and are provided with sharply bent portions in the middle. The angle the forks make with the ground is varied by adjusting the position of the stud D, the lengths of the connecting-rods C, or the lengths of the shanks of the forks B. Specification 18812/09 is referred to.
|
en
|
GB-471757-A
|
GB-710236-A
|
GB
|
A
|
A
| null | 1936-03-09
| null |
F27B7/00
| null |
Improvements relating to rotary kilns
|
en
|
471,757. Rotary cement kilns. FASTING, J. S. March 9, 1936, No. 7102. [Class 51 (ii)] The inlet end of a rotary cement kiln is fitted with a slurry-drying device comprising a gaspermeable tubular chamber 3 having chains 5 attached to its inner and outer surfaces, baffle walls 6, 7 being provided to ensure that the kiln gases, on their way to the offtake 15 pass through the chains thus drying the slurry which is fed thereto at 9. To cool the gases before they reach the chamber 3, a part of the slurry may be supplied direct to the kiln below the chamber through a pipe 10. Fig. 3 shows a modification in which the chamber 3 is closed at both ends by plates 6a, 6b slurry being fed separately to the outer and inner chains by fixed and reciprocating pipes 13, 8a, respecttively. A baffle wall 7a causes the gases to pass twice through the chains and a helical passage 12 is provided for the delivery into the kiln proper of the slurry dried above the wall 7a.
|
en
|
GB-292229-A
|
GB-710327-A
|
GB
|
A
|
A
| null | 1927-03-14
| null |
F02M31/06
| null |
Improvements in or relating to apparatus for supplying air to the carburettors of internal combustion engines
|
en
|
292,229. Ricardo, H. R. March 14, 1927. Spray carburettors.-The temperature of the air supplied to a carburettor is varied substantially in inverse proportion to the torque of the engine. The temperature control may be effected directly from the throttle lever or more conveniently, in accordance with the pressur in the induction pipe but in either case a dashpot or like device is provided to introduce a time lag in such a manner that the extent of the lag will be reduced automatically as the temperature of the engine rises. Air is supplied to the inlet A<1> of the carburettor A from a casing C having inlets C<2> for cold air and inlets C<3> for air heated in a casing F<1> around the exhaust pipe A<2>, or by other means. Formed integrally with the upper cover D of the is a cylinder D<2> containing a piston G which is subjected, at its upper face, through a pipe O to the pressure existing in the induction pipe B. The lower cover E comprises a dashpot cylinder E<4> the piston E<5> in which is loaded by a spring J and is connected to the piston G by a, rod H which carries a valve N having a disc-like portion N<2> and a coned portion N<1>. The hot-air pipe F is connected to or integral with a ring F<3> engaging walls C<3>, C<6> and forming a chamber C<4>. The cold air passes through the throat of a substantially Venturi-shaped member L, and the hot air through the throat M<1> of a member M. The cylinder E<4> is filled with a liquid which becomes less viscous as its temperature increases. With closed throttle and therefore small engine torque, the suction through pipe O is large, the piston G is raised, the cold air is cut off by disc N<2> and heated air only is admitted through M<1>. With throttle fully open and torque at a maximum, the cone N' closes hot-air inlet M<1>, and the throat in cold-air inlet L is fully open. With intermediate throttle positions, varying proportions of both hot and cold air are admitted. The dashpot prevents a too sudden reduction of air temperature upon sudden opening of the throttle, and the throat M<1> at the same time causes an increase of depression at the fuel orifice and a somewhat richer mixture to be supplied. The rod H may, alternatively, be connected through resilient means with the throttle valve.
|
en
|
GB-1091903-A
|
GB-712964-A
|
GB
|
A
|
A
| null | 1964-02-20
| null |
G01S5/00
|
EARP CHARLES WILLIAM
|
Radio navigation system
|
en
|
1,091,903. Radio navigation. STANDARD TELEPHONES & CABLES Ltd. Feb. 19, 1965 [Feb. 20, 1964], No. 7129/64. Heading H4D. The Specification describes a radio navigation system wherein the distance of a mobile object from a fixed station is represented ambiguously by two signals and wherein means are provided to obtain from the two signals, a signal representative of the relative timing of the two signals, and to obtain from said representative signal an unambiguous indication of the distance between the mobile object and the fixed station. The object of the invention is to reduce the effect of phase errors due to the propagation of the two signals being different. In the simplest embodiment, Fig. 1, two signals at frequencies mf and nf, e.g. 11 kc/s. and 10 kc/s. are transmitted from a fixed station and received at the mobile station. The two signals are taken from the receiving stages 1 and are separated out by filters 3 and 4. The phase of the signal at mf is compared in phase meter 11 with that of a signal from a highly stable source 12 of like frequency, to provide a fine but ambiguous distance indication. The two signals are converted to corresponding pulse trains in pulse generators 5 and 6, and the pulse trains are fed to a coincidence gate, to give an output therefrom at a frequency mf-nf, e.g. 1 kc/s. This output, after passing through filter 10 is compared in phase, in phase meter 8, with the output of a highly stable source 9, of like frequency, to provide a course but unambiguous distance indication. A manual phase adjuster may be provided in the output of one of the filters 3 and 4 to enable any zeroing adjustments. If the phase of the signal at nf is in error by p, and if the width of the pulses generated by generators 5 and 6 is <SP>1</SP>/ 20 th of the spacing of the pulses from generator 6, then the resulting phase error measured by meter 8 is only p/20. In a second embodiment, Fig. 3 (not shown), the signals from the two filters 3 and 4 are frequency multiplied by factors n and m respectively to convert them to a common frequency mnf, e.g. 110 kc/s. These two signals of common frequency are phase compared and the result of the comparison produces a signal adjusting a phase shifter in the path of the filter 4 to the frequency multiplying means. If the phase of the signal at mf is in error by p, then the frequency multiplied signal will be in error by np. The output of the phase comparator adjusts phase shifter by amount k, which becomes mk at the input to the phase comparator, due to the m times frequency multiplying means, until the two signals of common frequency are in phase and k = 0. The phase shift introduced by the phase shifter is thus (n/m).p. The differential error between the output of filter 3 and the phase- shifted output of filter 4 is thus (p-(n/m)p, e.g. p(1 - 10/11)p/10. These two outputs are beat together in a detector, to produce a signal at (m-n)f, e.g. 1 kc/s., which is compared in phase with the output of a highly stable generator to give the unambiguous course distance. The fine, ambiguous distance indication is given as in the embodiment of Fig. 1. Where the position of the mobile station is to be found, three fixed transmitting stations may be used, radiating different pairs of signals, and the arrangements of Figs. 1 and 3 may be triplicated. Alternatively, the transmitting station may transmit the same signals on a timesharing basis. A course indication of the differential distance between the mobile station and two of the fixed stations may be obtained by subtracting the corresponding phase difference measurements on meter 8. If, due to extreme propogation distances, the phase error p is too large for reduction by the methods of Fig. 1 and Fig. 3, manual phase adjusters may be provided in one of the signal paths.
|
en
|
GB-785670-A
|
GB-716256-A
|
GB
|
A
|
A
| null | 1956-03-07
| null |
A61K49/04
| null |
Improvements in or relating to chemical compounds for use as x-ray diagnostic agentsand to processes for their preparation
|
en
|
The invention comprises compounds of the formula <FORM:0785670/IV (a)/1> in which R is hydrogen or a lower (1-7C) aliphatic carboxylic acyl radical, n is 2 or 3, and lower (1-7C) alkyl esters and non-toxic salts thereof; and a process of producing them by iodinating the isophthalic acid containing the NH2 group which may be acylated at an intermediate stage or as a final step. The iodination may be in stages with intermediate isolation of the mono-and di-iodo-products. In examples, the preparation of mono-, di-, and tri-iodo-5-aminoisophthalic acid using iodine monochloride on the amino acid, is described; the di- and triiodo products may be acylated with acetic anhydride, formic acid, caproyl chloride and other aliphatic acylating agents; the sodium, ethanolamine, and methylglucamine-salts and the diethyl ester of the tri-iodo-5-acetylamino-isophthalic acid are also made by customary methods.ALSO:The 5 - acylamino - 2 : 4 : 6 - triiodo - isophthalic acid salts and esters (see Group IV (b)) are used as X-ray contrast media. The 5-acetylamino - 2 : 4 : 6 - triiodo isophthalic acid sodium, diethanolamine, glucamine and other non-toxic salts in 50 per cent aqueous solution, insoluble salts, and suspensions, tablets and capsules for oral administration, are referred to. The formyl- and propionyl-amino derivatives are also referred to. Esters, e.g. the ethyl ester, of the acids may be used in oil solution or suspension and in compositions with methyl cellulose, gelatin, dextran and other thickening agents. The compounds are also useful for X-ray visualization of other structures than human organs.
|
en
|
GB-1517673-A
|
GB-734077-A
|
GB
|
A
|
A
| null | 1977-02-22
| null |
C08G18/80
| null |
Process for the production of thermoformable polyisocyanurate foams
|
en
|
1517673 Thermoformable polyisocyanurate foams BAYER AG 22 Feb 1977 [24 Feb 1976] 7340/77 Heading C3R A process for the production of a thermoformable rigid polyisocyanurate foam comprises reacting in the presence of at least one isocyanate trimerization catalyst and at least one blowing agent, an excess of polyisocyanate reactant which is a polymethylene polyphenyl polyisocyanate which contains at least 80% wt. of diisocyanatodiphenylmethane with an OH group-containing reactant which comprises: (a) at least one polyoxy-alkylene polyether containing at least one OH group and having an OH number of from 28 to 112 in which at least 20% wt. of the alkylene oxide component consists of ethylene oxide units, and (b) at least one dihydric alcohol having a molecular weight of from 62 to 200, the polyether (a) being used in an amount of from 0À015 to 0À04 equivalents of OH per equivalent of NCO, and the dihydric alcohol (b) being used in an amount of from 0À2 to 0À4 equivalents of OH per equivalent of NCO. The polyisocyanate component may be pure diphenylmethane diisocyanate, polymethylene polyphenyl polyisocyanates prepared by phosgenating polyphenyl polymethylene polyamines or chemically modified diisocyanato-diphenylmethanes. The polyisocyanate preferably contains from 5-60% wt. of 2,4<1>-diisocyanatodiphenylmethane. In polyether component (a) preferably at least 10% wt. of the OH groups are primary OH groups. Part of the polyether component (a) may be replaced by compounds ofM.Wt. 800 to 10,000 containing NCO-reactive hydrogen atoms, e.g. polyesters, polyamines, polythiols, polycarboxylic acids, polyacetals, polycarbonates and OH-containing polybutadienes. The dihydric alcohol (b) may be a C2-C8 alkane diol, 1,4-bis-hydroxymethylcyclohexane, di-, tri-, tetra- or poly-ethylene, - propylene or -butylene glycols. The blowing agent may be water and/or a volatile inert organic substance. Suitable trimerization catalysts include quaternary ammonium hydroxides, alkali metal hydroxides, alkali metal alkoxides, alkali metal salts of carboxylic acids, lead octoate and certain tertiary amines, e.g. N-(2- dimethyl-aminoethyl)-N<1>-methyl piperazine and tris - (3 - dimethylaminopropyl) - hexahydrotriazine. The above catalysts may be used together with conventional urethane catalysts. Conventional additives such as foam stabilizers, cell regulators and stabilizers may be added. The process is preferably carried out by the oneshot procedure and it may be carried out continuously or discontinuously. The cell diameter of the foam is generally from 0À3 to 2À5 mm. Thermoforming of the foam may be carried out by bending, pressing or stamping and the heating may be carried out in hot air ovens, microwave or infra-red heating channels or contact hot plates. The thermoforming temperature is generally from 150 to 210 C. The thermoforming may be carried out continuously or discontinuously and the foam may be profiled. In a typical example a rigid polyisocyanurate foam is prepared by vigorously mixing a component (A) comprising an ethylene oxide/propylene oxide/trimethylolpropane polyether of OH number 56, ethane-1,2-diol, water, tris - (dimethylaminopropyl) -hexahydrotriazine, potassium acetate, permethylated diethylenetriamine, a polyether polysiloxane stabilizer and a phenylmethyl polysiloxane cell regulator, with a component (B) comprising monofluorotrichloromethane and diisocyanatodiphenylmethane consisting of 90% wt. of 4,4<1>-isomers and 10% wt. of 2,41-isomers modified with 14% wt. of tripropylene glycol.
|
en
|
GB-557268-A
|
GB-734342-A
|
GB
|
A
|
A
| null | 1942-05-30
| null |
B05D1/28
| null |
An improved apparatus for applying coagulable liquids to lengths of flexible material
|
en
|
557.268. Coating wire &c. UNITED STATES RUBBER CO. May 30, 1942, No. 7343. Convention date, June 6, 1941. [Class 140] Wires, filaments, yarns, threads, ropes or cables are coated with insulating or other materials by feeding a stream of liquid along a curved path and moving the wire &c. upwards in a vertical path substantially tangential to the path of the liquid and in a direction contrary to its direction of movement. A tank 26a may be supplied with an aqueous dispersion of rubber by a pipe 27a and the dispersion picked up by a driven disc 29a dipping into the liquid and entering a groove in the periphery of a driven disc 22a. A wire 15 to be coated is fed upwards in the groove the direction of feed of the liquid being opposite to that of the wire at the point of immersion.
|
en
|
GB-1041483-A
|
GB-744464-A
|
GB
|
A
|
A
| null | 1964-02-21
| null |
C07D315/00
| null |
ª-substituted ª-lactones and their production
|
en
|
The invention comprises gamma-lactones substituted in the alpha-position by an alkenyl group or a carbo-cyclic group containing the group <FORM:1041483/C2/1> where the dotted line denotes optional positions of the carbocyclic ring and the preparation thereof by heating together a gamma-lactone, an alkali metal t-butylate and an alkenyl bromide or an allyl brominated cyclic compound or an aralkyl bromide where the alkyl group contains one carbon atom, in a non-polar solvent, the preferred conditions being when the butylate is potassium tertiary butylate, benzene is the solvent, the reactants are in approximately equimolar proportions, and the process is carried out in substantial absence of oxygen and at the boiling point of the solvent. Therapeutic compositions having antihistamine, antianaphylactic, anticonvulsive and strong ataractic actions, and an effect on the blood circulation comprise an alpha-substituted gamma-lactone defined above in admixture with the usual pharmaceutically acceptable diluents or solvents.
|
en
|
GB-827957-A
|
GB-753455-A
|
GB
|
A
|
A
| null | 1955-03-15
| null |
C21B13/14
|
GOODEVE CHARLES FREDERICK
|
Improvements in the production of metal from ores and in apparatus therefor
|
en
| null | null |
GB-633100-A
|
GB-757347-A
|
GB
|
A
|
A
| null | 1947-03-19
| null |
H04N3/18
| null |
Improvements in or relating to television receivers
|
en
|
633,100. Converting; transformers. KOLSTER-BRANDES, Ltd., MONTGOMERY, W. A., and ROGERS, E. A. J. March 19, 1947, No. 7573. [Class 38 (ii)] [Also in Group XL (c)] A unidirectional potential for the electrode of a cathode-ray tube in a television receiver is obtained by rectifying the recurrent potential wave developed across the wave wound sectional primary winding of a transformer, part of which carries the anode current of the output valve of an amplifier supplying the linescanning signals to the deflector coils of the C.R.T. which signals are obtained from the secondary winding of the transformer. A sawtoothed input voltage is supplied to the grid 25 of the output pentode 20, the anode 30 of which is connected to a tapping on the primary winding 32 of transformer 33. The cathode 21 which is strapped to the suppressor grid 22 is earthed through a resistance 23 which supplies grid bias through grid leak resistance 26, and a variable resistance 24. Deflection coils 36 are energized from secondary winding 35, and are connected across resistance 24 whereby controllable damping and amplitude and high voltage control are obtained. Unidirectional high voltage for the C.R.T. anode, smoothed by capacitor 46 and resistance 47 is obtained through rectifying diode 42 from the voltage developed during flyback across the primary winding 32. As shown in Fig. 7, the core of transformer 33 is built from T- and U-shaped stampings separated by air-gaps. To reduce self-capacitance, the primary winding is in three self-supporting wave-wound sections 106, 107, 108 on an insulating former 103 surrounding the secondary winding 101 comprising two layers of wire on a former 102 on the central core leg. Sections 106, 107 carry the anode current and are of wire of greater cross-section than section 108. P.V.C. covered wire in a slot 105 of one of the cheeks 104 of former 103 forms a tertiary winding supplying the heating current for rectifier valve 42. The transformer is housed in an aluminium or other metal case packed with sponge rubber to deaden the whistle.
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en
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GB-259464-A
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GB-761526-A
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GB
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A
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A
| null | 1926-03-19
| null |
F23M5/00
| null |
Improvements relating to the flues of steam boilers
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en
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259,464. Newton, J. F. March 19, 1926. Settings.-A toggle device for maintaining an air-tight joint between the boiler shell and the setting comprises a pair of arms a mounted on a pivot b carrying weights c. One arm abuts against a cover plate e, the other against a carriage d capable of sliding on the cover plate and having asbestos cords or the like e<1>, h, for maintaining an air tight joint with the cover plate and boiler shell i. A number of devices extending across the downtakes may be provided at intervals, and adjacent arms nearest the boiler may be connected by a bar or the like for maintaining contact with the boiler. The side flues of a pair of adjacent boilers may be sealed by the device, each arm abutting against a carriage supported upon a cover plate.
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en
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GB-968837-A
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GB-767560-A
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GB
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A
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A
| null | 1960-03-04
| null |
F16D3/41
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FREEMAN LESLIE GAILLARD
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Improvements in or relating to universal joints
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en
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968,837. Universal joints; shafts; seals. BIRFIELD ENGINEERING Ltd. Feb. 13, 1961 [March 4, 1960], No. 7675/60. Headings F2B and F2U. A Hooke's joint with an intermediate cross 5 has a resilient sealing ring 17 at the inner end of each arm of the cross located between a supporting thimble 9 and a surface 18 on the arm which increases in diameter towards the centre of the joint. As shown, the surface 18 is of generally barrel shape, the diameter of its cross-section being proportional to the cube of the distance of the cross-section from the point of application of the bearing load to the arm. The sealing ring 17, which may be of plastic bounded cork composition, or polyurethane &c. oil-resistant rubber-like synthetic material, is initially of rectangular crosssection and is retained in a flanged ring 16 press-fitted into the thimble 9. Lubricant is retained within the thimbles 9 by the sealing rings 17. The fork 3 in which two of the thimbles 9 are mounted is pinned to a motor vehicle propeller shaft 1.
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en
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GB-145163-A
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GB-769219-A
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GB
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A
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A
| null | 1919-03-27
| null |
F22B33/10
| null |
Improvements in steam generators
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en
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145,163. Kirke, P. St. G. March 27, 1919. U-tube superheaters.-The hot gases from a composite multitubular boiler a, b are drawn through a superheater g consisting of two sets of sinuous tubes connected to headers h, g. Specifications 124,016, 130,234, 134,938, 135,542 and 135,617 are referred to.
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en
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GB-734226-A
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GB-779053-A
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GB
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A
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A
| null | 1953-03-20
| null |
F23H11/00
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JEWKES WALLACE GRAYHAM
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Improvements relating to travelling grate stokers
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en
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734,226. Travelling grates. THOMPSON (TRIUMPH STOKER), Ltd., J. March 19, 1954 [March 20, 1953], No. 7790/53. Class 51 (1). A travelling grate is provided with a scraper member 8 pivotally mounted so that its upper edge 13 bears against successive grate links 1 intermediate the upper run and the lower run, the majority of the ash being deflected over an outer curved surface of the scraper member and away from the grate, the scraper member having an inner surface 15 which curves away from the grate immediately adjacent the upper edge 13 and subsequently follows the path of the links from the upper to the lower run. The lower part of the scraper member is formed with one or more transversely-extending apertures 17 so that ash carried around the inner surface 15 may pass therethrough into the ash pit. The scraper member may be pivoted about a point intermediate its length or may be formed with two wings 9 through which pass pivots 11.
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en
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GB-721375-A
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GB-779952-A
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GB
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A
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A
| null | 1952-03-26
| null |
A61M5/00
| null |
Improvements in and relating to cases for hypodermic syringes
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en
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721,375. Hypodermic syringes. DAVIS, R. W. March 26, 1953 [March 26, 1952], No. 7799/52. Class 81 (2). A case for a hypodermic syringe 7 has a shouldered portion 5, or ledge, which engages the finger flange 6 on the syringe to support the latter. The case is extended upwards and is .closed by a cap 4, a wad of wool 9 being pressed down on the syringe. Apertures 14, 15 are provided in the body and cap respectively, which are aligned during sterilisation, to allow the entry of sterilising atmosphere, and which are closed by turning the cap, immediately the case is removed from the autoclave.
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en
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GB-236135-A
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GB-784125-A
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GB
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A
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A
| null | 1925-03-23
| null |
A61F9/02
| null |
Improvements in or relating to spectacles for human use
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en
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236,135. Ratti, G. March 23, 1925. Goggles.-The metal frames 1 of goggles are provided with a flexible tubular ring 5 fitting the orbital cavity and pierced with holes 7, 8 for purposes of ventilation. The rings 5 are divided into two compartments by partitions 6 and the holes 7 opening outwards are preferably arranged in a different part of the tubes to that of the holes 8 opening inwards. Wads of cotton wool 9 may be inserted in the tubes 5 to act as filters.
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en
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GB-795290-A
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GB-785156-A
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GB
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A
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A
| null | 1956-03-13
| null |
B01D17/04
| null |
Improvements in filters for liquids and gases
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en
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795,290. Filters. BENDIX AVIATION CORPORATION. March 13, 1956 [May 26, 1955], No. 7851/56. Class 46. [Also in Group XXVIII] A filter and demulsifying device suitable for removing water from petrol comprises a pleated resin-impregnated inward flow paper filter sleeve 54 surrounding a single helically wound layer 52 or a plurality of layers of nylon fibres bonded at their points of contact with a thermosetting resin and supported by a perforated metal core member 51; the ends of the tube so formed being sealed by plates 56, 58 and enclosed in a casing 40 having an inlet 48 and a filtered liquid outlet 47. A second casing 44 having an outlet 50 surrounds the casing 40 and encloses a plurality of filter elements 46 of the edge or pleated type. The layers of nylon are prepared by splitting a sheet of fibrous nylon material edgewise to form a mat having one side more loosely packed than the other.
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en
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GB-226083-A
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GB-787224-A
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GB
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A
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A
| null | 1924-03-27
| null |
B60P1/64
| null |
Improvements in and relating to self loading and tipping waggons
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en
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226,083. Boys, S. J. March 27, 1924. Articulated road vehicles; couplings for tractors. -- A motor or steam vehicle is articulated to a trailer by means of an extending draw bar so that the trailer is tipped as the draw bar is telescoped and a load may be drawn on to the trailer as the draw bar is extended. The draw bar is pivoted to the trailer at 9 above the wheel axle and comprises two telescopic tubes which may be locked as desired.
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en
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GB-795369-A
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GB-792256-A
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GB
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A
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A
| null | 1956-03-14
| null |
H01H50/32
| null |
Improvements in electromagnetic contactors
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en
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795,369. Electromagnetic switches. CRABTREE & CO., Ltd., J. A., WINTLE, T. D. G., and JELLEY, G. A. Jan. 18, 1957 [March 14, 1956], No. 7922/56. Class 38 (5). A contactor embodying the features disclosed in Specifications 633,393 and 651,312 in which a slidably-guided E-shaped armature 3 moves towards a magnet 4 upon energization of the coil 5 to close contacts 9, has a latch to prevent such movement when the coil is not energized, due to vibration. The latch comprises a ribbed steel blade 16 fixed to the armature by a pin 15 and biased downwardly to normally engage the coil interior and abut the end of a fixed bracket 18. Energization of the coil attracts the blade to the magnet to disengage the bracket and permit the armature to move.
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en
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GB-590744-A
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GB-793243-A
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GB
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A
|
A
| null | 1945-03-29
| null |
G01M3/24
| null |
Listening device particularly for the investigation of noises emanating from pipes through which materials flow and from machines
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en
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590,744. Listening devices. KELLENBERGER, K. March 29, 1945, No. 7932. Convention date, Nov. 23, 1943. [Class 81 (ii) ] A device for listening to noises emanating from machinery &c. of the type comprising a sound receiving contact member 7, a transmitting stem 1 and a diaphragm 4 mounted in a sound box 2 is characterized by means, such as a member 5, for rigidly connecting the diaphragm to the stem, and by means of supporting the edge portion of the diaphragm by the stem via sound insulation means; as shown, elastic packing 6 is employed. The diaphragm is mounted in the sound box between rubber rings.. One or more of the stem members may be curved or cranked, and provided with flexible joints. The member 7 may be shaped to fit the surface to be investigated. ,
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en
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GB-311503-A
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GB-798828-A
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GB
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A
|
A
| null | 1928-03-15
| null |
E01B11/36
| null |
Improvements in and relating to railway rail joints
|
en
|
311,503. Klosowski, Z. March 15, 1928. Rail joints have a pair of ordinary fishplates c and a pair of rigid press-bars a with slight convexity so that the whole of their bearing surface is forced into contact with the fishplates. The bars a have a central rib g and two bolt-holes which register with the centre bolt-holes of the fishplates, the bearing surface being curved to a radius equal to about twenty-nine times the distance between the centres. The press-bars are forced against the fishplates while the bars are being tightened.
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en
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GB-896337-A
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GB-800361-A
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GB
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A
|
A
| null | 1961-03-06
| null |
G11B23/00
| null |
Improvements in magnetic transducing heads
|
en
|
896,337. Magnetic flux-sensitive heads. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 6, 1961 [March 18, 1960 (2)], No. 8003/61. Class 40 (2). Successive gaps, 46, 48, scanning the same digital track in a magnetic record are associated with complementary magnetic circuits 10, 12, all or parts of which are periodically saturated by modulators, 18 or 38. In Fig. 1, an output, at double the modulation frequency is produced in a winding 16 when an NRZ changeover is passing or stationary between the gaps. In Fig. 4, two half-track heads with staggered gaps and opposed series-connected windings react as in Fig. 5 to the passing of a changeover point to give a sharp output pulse of length equal to the gap-spacing. A stacked multi-track head of either type may share a single modulator threaded through all the head elements.
|
en
|
GB-714759-A
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GB-802651-A
|
GB
|
A
|
A
| null | 1951-04-06
| null |
C13K1/08
|
FROST GEORGE BAXTER
|
Improvements in or relating to the clarification of starch conversion liquors
|
en
|
Starch conversion liquors having a pH value less than 7 and contaminated by a substance which can be removed by causing it to flocculate are clarified by increasing the pH value of the liquor whilst maintaining it at at least 80 DEG C by the addition of an alkaline substance, viz. one or more of the following, carbonates, sesquicarbonates, bicarbonates and hydroxides of the alkali metals and alkaline phosphates, silicates and aluminates, to a value at which flocculation occurs, adding finely divided bentonite and then removing the flocculating or precipitating matter from the liquor The fine colloidal materials are added in the form of hydro-sols or hydro-gels but the coarser materials may be added direct to the liquor. Bleaching agents more particularly alkaline and alkaline earth salts of chlorous acid, hypochlorous acid and sulphurous acid may be added initially if the liquor contains non-colloidal soluble colouring matter. After removal of the flocculating material the liquor may be treated with activated carbon.
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en
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