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GB-336430-A
GB-3116029-A
GB
A
A
null
1929-10-14
null
B60C5/08
null
Improvements in and relating to self-sealing inner tubes for pneumatic tyres
en
336,430. Fitzgerald, A. G. Nov. 6, 1928, [Convention date]. Air-tubes.-An air-tube 10 with a self-sealing tread portion is moulded with its rim-seating side 12 of larger diameter than the rim and with a flattened tread portion 11 wider than the corresponding portion of the outer cover 14 so that the portion 11 is placed in compression when inflated within the cover. The portion 11 may be thickened and reinforced by weftless or weak-weft fabric 13.
en
GB-236155-A
GB-3121524-A
GB
A
A
null
1924-12-30
null
H05B41/22
null
Improvements in or relating to electric gasfilled discharge tubes
en
236,155. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. June 25, 1924, [Convention date]. Vacuum tubes; vacuum apparatus with reflecting surfaces; low-pressure metallic-vapour apparatus.-Electric discharge tubes in which a light - radiating positive column appears and which comprise two electrodes within a sealed envelope filled with a rare gas in contact with the electrodes are operated at 500 volts or above and are provided with one or more conductive members extending over a considerable length of the tube and along or in the wall thereof out of contact with the gas. Each conductive member may comprise a conductive layer 6, Fig. 1, such as aluminium paste or a silver mirror reflecting light in a predetermined direction, or a copper or other metal wire or band 20, Fig. 3, arranged helically around the tube, disposed within the walls of the tube or enclosed in an insulating tube within the discharge tube. An auxiliarycapacitive discharge between the conductive members or between one member and an electrode lowers the initiating and operating high voltage of the main discharge and permits a reduction in the resistance in series with the tube. At least one conductive member may be connected with one electrode of the tube and two members, such as two helices with their ends near together at the centre of the tube, may be connected to the two electrodes. One member connected to the electrode may be connected to earth, as in Fig. 3, so that nearly the whole tube is at earth potential, the member extending close to the other electrode. Alternatively, the auxiliary discharge may be produced by a voltage separate from the main discharge voltage and preferably of such phase that the auxiliary voltage is a maximum when the main discharge can be initiated. Two conductive layers 6, 7, Fig. 1, on opposite sides of the outer surface of the tube may be supplied with voltage from a transformer 13 separate from the transformer 10 supplying the main discharge, between the electrodes 4, 5 in widened parts 2, 3 of the tube. To prevent discharges along the outer wall of the tube when two conductive members are used, one at least is arranged inside the tube. Several tubes may be connected in parallel across a single transformer. Specification 154,199 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the mixture of a small quantity of mercury or like vapour with the gas. This subject-matter does not appear in the Specification as accepted.
en
GB-1123321-A
GB-3125966-A
GB
A
A
1032-04-22
1966-07-12
null
C25B15/08
MELLISH STUART FREDERICK
Diaphragm electrolytic cell
en
In producing chlorine and caustic alkali e.g. caustic soda by electrolysis in a diaphragm electrolytic cell, a foam of chlorine and brine is led from the cell to a separate foam-breaking space in which foam is separated by gravity and from which the separated brine is recycled to the cell. Preferably make-up brine is added to the foam-breaking space. A plurality of diaphragm cells may be electrically connected in parallel and share a common foam-breaking space.
en
GB-1048646-A
GB-3128063-A
GB
A
A
null
1963-08-08
null
D05B33/02
null
Conveyor sewing machine
en
1,048,646. Sewing machines. UNION SPECIAL MACHINE CO. Aug. 8, 1963 [Aug. 8,1962], No. 31280/63. Heading D1G. A sewing machine comprises a lower conveyer belt, an upper and yieldable conveyer belt, and power-driven auxiliary feed means operating on the work in advance of the presser foot for assisting the passage of work under the latter, the auxiliary feed means being free to move upwardly substantially independently of the upward movement of the presser foot. As shown, lower endless belts 30 are mounted on end rollers, one of which is driven via a variablespeed gear box, and the top runs of the belts pass over a work table 29. An upper endless belt 39 is mounted on end rollers 48 carried by a frame 49 which is connected by rods 51 to a horizontal pivoted shaft. The bottom run of belt 39 engages idler rollers 50 carried by frame 49. One end roller 49 is driven by a shaft 54 having a universally jointed connection to a variable speed gear box. The presser foot 68, co-operating with feed dogs 67, is carried by a lever 69 which is mounted for pivotal movement both vertically and horizontally and is biased downwardly by a light spring 70. A plate 69a, loosely mounted on lever 69, journals a feed wheel 36 which has two work-engaging surfaces. Feed wheel 36 is located in front of the presser foot and is connected by a flexible shaft 37 to a variable feed gear box. The arrangement is such that work 21, 22 on approaching the stitching point initially raises wheel 36 independently of the presser foot 68 to facilitate introduction of the work by wheel 36 under the lightly spring-loaded presser foot. A bar 23 positioned on table 29 in advance of the stitching point has a hollow portion which increases in depth in the direction of work feed, and through which a stream 25 of compressed air is directed on the lower workpiece 21 for straightening or uncurling the edge thereof. A tube 24, mounted on frame 49, is formed with perforations through which a stream 27 of compressed air is directed downwardly on the upper workpiece 22 for straightening or uncurling the edges thereof and thereafter holding said edge against the already straightened edge of the lower workpiece. The edges are trimmed by a stationary knife 40 positioned after wheel 36 and ahead of the needle, the trimmings being carried away by a shoot 83. A pivoted blade 65 positioned at the rear of the needle, is arranged to be oscillated, for cutting the thread chain, under the control of a photo-cell 71 which is mounted on frame 49 and acts when the trailing end of a workpiece passes thereunder. A pair of spaced photocells 42, 43, Fig. 4 (not shown), positioned at the loading point of the belts 30, are arranged to stop the driving motor when neither detects work thereunder. The completed workpieces are stacked on a pivoted arm 58, Fig. 7 (not shown), oscillated by means 62 under control of a photo cell 60 which is positioned above the discharge end of belts 30 and acts when the trailing end of a workpiece passes thereunder. In a modification feed wheel 36 is replaced by a further upper belt supported by the leading roller 48 and a roller 50 so positioned as to press said belt upon the work immediately in advance of the presser foot.
en
GB-1007540-A
GB-3129161-A
GB
A
A
null
1961-08-31
null
F16K31/38
HORNER HENRY LEONARD
Improvements in or relating to fluid flow control valves
en
1,007,540. Valves. NORMALAIR Ltd. Nov. 30, 1962 [Aug. 31, 1961], No. 31291/61. Heading F2V. A valve comprises a main valve unit 11 having an inlet 15 and two outlets 16, 17 which are controlled by diaphragm valves 28, 29 cooperating with seats 26, 27 and connected by a rod 32. The valves are actuated by fluid pressure supplied and exhausted through small bore pipes 12, 13 under the control of a pilot valve unit 10. The pilot valve unit 10 has a fluid pressure inlet pipe 21 which feeds pressure to a chamber 52 and by a passage 53 to chamber 51 and acts on valve closure members 47, 48 to urge them towards seats 41, 42 on the valve body. A spool 43, reciprocable in the bore of the housing by a lever 57, has an axial bore open to the atmosphere and seats 44, 45 for the valves 47, 48. The spindles of the valves 47, 48 are a loose fit in the bore to allow exhaust of fluid from the pipes 12, 13. With the pilot valve in the position the valve 48 is on the spool seat 44 to close the connection between pipe 12 and exhaust and allow fluid pressure to flow through pipe 12 to act on the diaphragm 28, the pipe 13 is open to exhaust. When the lever 57 is moved to the dotted line position fluid pressure is fed to pipe 13 and pipe 12 is open to exhaust. The diaphragm 28, 29 need not be connected by the rod 32 and the spool 43 may be of such a length that in a mid-position both valves 47, 48 seat on the spool seats and fluid pressure is supplied to both pipes 12, 13 simultaneously to close both valves 28, 29. Specification 944,931 is referred to.
en
GB-648146-A
GB-3129248-A
GB
A
A
null
1948-12-03
null
B60P3/24
null
Improvements in tank vehicles
en
648,146. Frame constructions. THOMPSON BROS. (BILSTON), Ltd., and HAND, K. Dec. 3, 1948, No. 31292. [Classes 79 (iii) and 79 (iv)] The frame of a tanker is constituted by two longitudinal tubes of relatively large diameter rigidly coupled together and supporting the tank. Such tubes may be used for carrying liquid additionally to the tank. Figs. 1 and 2 show the complete tanker and the tubular frame with tank in side elevation, Fig. 3 is a section on A-A and Fig. 4 on B-B of Fig. 2. The frame comprises a pair of tubular members 2 whose forward ends 6 are swaged in to a tapering rectangular section to carry the engine 7, gearbox 8 and spring mounting brackets 9, and whose rear ends are formed into a hollow T section, Fig. 4. The T section is formed by removing a strip from along the bottom of each tube, bending the sides upwardly and again inwardly upon themselves to form and reinforce the top of the T, then welding in a deep channel member 10 to form the leg of the T. The two tubes are secured together by channel members 3 and gussets 4, and the tank 1 is secured to the assembly by gussets 5. The inner sides of the tubular members 3 are recessed at 16 to accomodate the propeller shaft, and are provided with internal stiffening plates 17 to relieve the strain where their cross section changes. The whole of the hollow frame members may be used for carrying liquid, but preferably only the portions of large diameter are so used, the ends of which are sealed off by plates 18. The tank 1 and frame members 2 are covered by a cowling 21 which may extend forwardly to the driver's cabin to enclose a space 20 to house hoses and other equipment.
en
GB-730413-A
GB-3130652-A
GB
A
A
null
1952-12-10
null
H01Q5/42
null
Improvements in or relating to aerial systems
en
730,413. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE. TELEGRAPHIE GES. Dec. 10, 1952 (Dec. 15, 1951], No. 31306/52. Class 40 (7). A double aerial system for serving two independent transmitting and receiving installations without mutual interference comprises a first vertical array of radiators in the form of cylindrical sections 1 each with four slots 2 symmetrically disposed around the circumference and a second array comprised of radially extending elements 5 disposed intermediate the slotted sections. The currents produced on the cylindrical surface due to the slots of the first array flow in the same direction as illustrated in the plan forming the lower part of Fig. 1 whereby no resultant voltage is induced in the second array. As shown, the second array comprises quarter-wave or shorter elements forming either dipoles or crossed dipoles which may be energized 90 degrees out of phase. The elements may house heating elements. In an alternative arrangement the second array may be formed of dipoles in the " butterfly " or " bat " form. The slots of the first array may be covered by insulating material.
en
GB-1452052-A
GB-3141775-A
GB
A
A
null
1975-07-28
null
A63F9/00
null
Tug of war game
en
1452052 Tug-of-war game IDEAL TOY CORP 28 July 1975 [3 Feb 1975] 31417/75 Heading A6H A tug-of-war game comprises two sets of figurines, a base mounting a rope and a central recess (18) into which the figurines may fall. The players each throw a dice coloured to match his set of figurines. The player with the highest number rotates a crank by that number to advance the rope, the orank device including a spring clicker so that revolutions -can be counted. The ends of the rope are connected to bars 40 joined by a rubber band 48. The bars carry protuberances (52) which engage the figurines.
en
GB-995101-A
GB-3146962-A
GB
A
A
null
1962-08-16
null
F02B55/14
LANGE GUNTHER
Rotary piston internal combustion engine
en
995,101. Rotary piston I.C. engines. KLOCKNER-HUMBOLDT-DEUTZ A.G. Aug. 16, 1962, No. 31469/62. Heading F1F. A rotary-piston internal combustion of the Wankel type has an auxiliary combustion chamber 12 communicating by means of one or more ducts 11 with the main combustion chamber 8, 9. The duct or ducts are arranged to produce a swirling action in the auxiliary combustion chamber, and fuel is injected by an injector 14 either radially into the auxiliary combustion chamber (Fig. 1), or is deposited as a film on the wall of the chamber (Fig. 2). An ignition plug 15 or 16 is fitted, either to assist in starting, or for continuous use. In another embodiment (Fig. 3), fuel is injected into the working chamber 9 and the mixture expands into an auxiliary chamber 19. Fuel may also be injected into the port 8 of the working chamber. The invention is also applicable to engines in which the rotor has one lobe less than the housing (Fig. 4, not shown), the auxiliary chamber being located in the rotor.
en
GB-1149971-A
GB-3160466-A
GB
A
A
null
1966-07-14
null
F04B43/067
GLUMPF GUNTER
Improvements in or relating to diaphragm-type pumps
en
1,149,971. Diaphragm pumps. WISSENSCHAFTLICH-TECHNISCHES ZENTRUM (WTZ) PUMPEN und VERDICHTER VEB. July 14, 1966, No.31604/66. Heading F1A. In a diaphragm pump with a diaphragm 4 actuated hydraulically by a piston 2, the piston has a fixed bottom dead centre and make-up liquid is supplied from a reservoir 7 through a check valve 9. Leakage past the piston is collected within a packing 6 connected to the reservoir.
en
GB-931092-A
GB-3169858-A
GB
A
A
null
1958-10-03
null
G01F15/02
MEIGH HARRY JOSEPH
Improvements in or relating to liquid metering arrangements
en
931,092. Rotary pumps and motors. DOWTY ROTOL Ltd. Jan. 1, 1960 [Oct. 3, 1958], No. 31698/58. Class 110 (2). An hydraulic system comprises a gear pump 11 which is arranged in series with a metering device 16 and provided with a by-pass conduit 17, 26 controlled by a slide valve 21 responsive to the pressure differential across a diaphragm 27 interconnected in the circuit as shown. The control 17 may incorporate an orifice 17a dimensioned so that the pressure drop thereacross approximates to the pressure loss due to turbulence in the metering device. The pump may have a greater capacity than the meter 16 and be driven at the same speed thereas or it may be driven faster than the member 16 and have the same or a lesser capacity. The above embodiments may be modified whereby the member 11 constitutes a motor which drives the meter 16 and is arranged upstream or downstream thereof, the valve 20 being arranged to act in the opposite sense to that described above.
en
GB-634830-A
GB-3177047-A
GB
A
A
null
1947-12-02
null
D04B1/18
null
An improved elastic knitted fabric and method of producing the same
en
634,830. Knitting. BLACKBURN & SONS, Ltd., G., and TOWERS, E. J. Dec. 2, 1947, No. 31770. Drawings to Specification. [Class 74 (ii)] A 1 X rib fabric formed on a rib knitting- machine having two sets of needles and incorporating tuck stitches comprises courses of elastic yarn spaced apart by two courses of inelastic yarn, each course of elastic yarn being knitted by all or selected needles of one set or selected needles of both sets, the course of inelastic yarn immediately following being knitted by all or selected needles of either or both sets of needles, and the second course of inelastic yarn being knitted by all the needles of both sets. Pattern or fancy work may be formed by the operation of selecting mechanism of the machine to form a ground fabric produced by one method and patterned areas produced by another method. Additional elastic yarns may be incorporated in the fabric by laying them in selected courses.
en
GB-1013847-A
GB-3188962-A
GB
A
A
null
1962-08-20
null
F16D67/06
null
Electromagnetic drive arrangement
en
1,013,847. Clutch-brake control; electromagnetic brakes. F. H. SHEPARD. Aug. 20, 1962 [Aug. 21, 1961], No. 31889/62. Headings F2C, F2E and F2L. In an electromagnetically actuated friction clutch-brake arrangement for operation at high speed, in order to reduce the delay in starting or stopping the output shaft when the current to a brake or clutch coil is turned off and the current to the other coil is turned on, a reverse pulse is applied to the first coil to repel the driven clutch disc. The clutch-brake unit may be used for driving the paper shift mechanism of a high speed printer. The unit comprises a clutch electromagnet 16 which is driven by a motor (not shown) and a brake electromagnet 30, between which is positioned a disc 26 fast on a driven shaft 24. The disc 26 is formed of non-magnetic material and has magnetic clutch elements 28 loosely fitted therein. The right-hand face of the clutch electromagnet is formed by two steel rings 18, 20 separated by an annular gap 22, and the left-hand face of the brake electromagnet is similarly formed by rings 32, 34. Each clutch element 28 is formed by a soft iron core 40, the outer faces of which are coated with brake linings 42, and when first placed in the unit the iron core extends at 44 on each side beyond the vertical plane of the brake lining. The portions 44 bridge the gaps between the clutch and brake rings, and after some operation the portions 44 are worn down into the same plane as the friction linings to give maximum engagement. The electromagnets are energized alternately by a circuit including a first output transistor 50 and a second output transistor 52 which are alternately conductive. The collector of transistor 50 is connected through a low resistance 60 to the clutch coil 16 and the collector of transistor 52 is connected through a resistance 72 to the brake coil 30. The base of the transistor 50 is connected to the emitter of an input transistor 82, the collector of which is connected through a silicone diode 90 to the base of the transistor 52, and the input transistor 82 is controlled by a signal from the output of a flip-flop unit 92 which has two inputs 94, 96. When the input 94 is actuated by a momen. tarily trigger pulse, the input transistor 82 becomes conductive, and when input 96 is energized the transistor 82 is blocked. When the input transistor 82 is blocked, the output transistor 50 is blocked and the output transistor 52 is conductive so that the brake coil 30 is energized. When the input transistor 82 is conductive, the base of transistor 50 becomes negative and the transistor conducts. The voltage drop across a resistor 86 in the circuit to the base of the transistor 52 is sufficient in conjunction with the voltage drop across a diode 54 to its emitter to block the transistor 52. When the transistor 52 is blocked, a capacitor 74 which was charged during its conductive phase, is discharged through a capacitor 66, providing a damped resonant discharge circuit causing a very rapid decay of the current and then a reverse pulse in the electromagnet. The clutch elements 28 are therefore rapidly shifted from contact with the brake to the clutch electromagnet. A similar sequence of events occurs when the brake electromagnet is energized. U.S.A. Specification 2,924,314 and U.K. Specification 825,646 are referred to. Reference has been directed by the Comptroller to Specification 803,268.
en
GB-639340-A
GB-3205847-A
GB
A
A
null
1947-12-04
null
H01H67/26
null
Improvements in or relating to devices for indicating the busy condition in electro-magnetic connecting devices
en
639,340. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 4, 1947, No. 32058. Convention date, Dec. 5, 1946. [Class 38 (v)] [Also in Group XXXIX] A device for indicating the operated condition of a relay comprises a magnetic pin 14 which is movably mounted outside the armature 17 of an electromagnet 16 so that it is attracted towards the armature by the magnetization leakage flux. The pin is hung in a brass rib 11 and indicates the recent release of the relay by an oscillatory movement, sticking of the pin against the armature by residual magnetism being prevented by a non-magnetic cover 15. In alternative constructions the pin may be either shaped as a leaf-spring and fastened to the rib, or may be attached to the rib by a spiral spring.
en
GB-1585950-A
GB-3208476-A
GB
A
A
null
1976-08-02
null
C07D239/36
null
Pyrimidine compoudns and their use as herbicides
en
null
null
GB-637270-A
GB-3209747-A
GB
A
A
null
1947-12-04
null
B26B27/00
null
Improvements relating to cutters for opening packaged articles
en
637,270. Cutters for wrappers, string &c. WALTERS, L. Dec. 4, 1947, No. 32097. Convention date, June 15, 1944. [Class 30] [Also in Groups XVII and XXIII] A cutter for opening packages comprises a handle 15, Fig. 1, a cutting blade 27, Figs. 1 and 2, carried by the handle and projecting forward therefrom, and a U-shaped guard 39 covering the blade, the guard being pivotally connected at its rear with the front of the handle and having a spring 45 urging it to bladecovering position, and the blade being longitudinally adjustable in the handle. The handle comprises two parts 16, 17 having blade-clamping jaws 26, 25, the jaw 25 having a stud 33 to engage one of the notches 32 in the blade, and a pin 34 to engage one of the slots 35 in the blade, whereby the blade is longitudinally adjustable and reversible. The parts 16, 17 are secured together by a screw 30 and located by a tubular portion 29 and an annular seat 28. Walls 37 define a truncated triangular magazine for blades held therein laterally in position by a lug 38 on the part 16. A screw 36 abuts the blade to clamp it tightly, and acts as a pivot for the guard, which has a notch 44 to hold a cord to be cut. In another form, for cutting a wrapper along an edge of a package, the guard 57, Fig. 9, has no notch 44, and for cutting a wrapper other than along an edge of a package, the guard may have a horizontal flange 59 to rest on the package.
en
GB-1022557-A
GB-3215763-A
GB
A
A
null
1963-08-14
null
H01H9/34
ROXBURGH ALBERT
Improvements in and relating to air circuit breakers
en
1,022,557. Arc - rupturing in switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 27, 1964 [Aug. 14, 1963], No. 32157/63. Heading H2B. An air break switch has an arc-chute composed of a plurality of cells formed by insulating plates 8 and each including a number of parallel metal plates 11, 12 and a pair of separable contacts 3, 4 spaced from the entrance to the chute, a plurality of diverging guide plates 13 extending between the contact gap and the entrance to the chute. The guide plates 13 are of magnetic material coated with an arc resistent insulating material such as an epoxide resin. The divergent ends of guides 13 which are free of the insulating coating are supported between adjacent plates 8 as are additional insulating barrier plates 15. The guides 13 are formed with slots 18, 19 alternately to opposite sides of the central plane, constraining the arc to take up a zig-zag path. The upper ends of the metal plates 11, 12 are extended by insulating plates 16, 17. The moving contact 4 is connected by a flexible conductor 5 with an arc runner 6; fixed contact 3 may similarly be connected with an arc runner (not shown).
en
GB-1237692-A
GB-3220968-A
GB
A
A
null
1968-07-05
null
E05B21/00
SELLIN OTTO
Improvements in or relating to lever blocks
en
1,237,692. Locks. O SELLIN. 5 July, 1968 [5 July, 1967 (2)], No. 32209/68. Heading E2A. A lever lock 10 is provided with a plurality of levers 13 mounted on a common lever pivot 17 for actuation by a double bitted key 19 which has different lever steps each for engaging in a cutout 18 in an associated lever, each cutout having a generally rectangular shape adapted to the size of the double lever bit to be inserted therein and provided with substantially arcuate oppositely located curved depressions 18a, 18b on its longitudinal sides, the oppositely directed lever steps of the key each acting substantially simultaneously on one of the arcuate depressions of a lever when the. key is turned, each pair of oppositely located lever steps complementing one another to the same length, in which the curved depressions of all or substantially all the levers are congruent and correspond to outer curves created by arcs of all the different circles described by individual lever steps each about its respective centre relatively to its lever, the centres of adjacent circles being spaced corresponding to the interval between the depth of one lever step and that of the next longer or shorter lever step and lying on an arc centred on the lever pivot, each such interval subtending substantially the same angle at the centre of the arc. As shown, the lever group 13 and a flank lever 15, are each provided with a pocket 23 for engagement with a bolt stump 20 in the path of the bolt 12 when all the pockets are aligned by the key to unlock the lock. The bolt is guided on a stump 27 by a lanket hole 26 and the key steps are arranged to engage the upper and lower depressions in the levers at an angle of about 65 degrees to a line L connecting the lever pivot and the centre line of the key bit. The flank lever 15 is provided with a pin 28 which restores the levers to the locking position under the influence of a spring 29 and a projection 30 on the flank lever 15 prevents withdrawal of the key in a position other than the locked position of the levers. When the key is turned to the 65 degree position a recessed bolt step 19b thereon engages in a recess 31 in the bolt talon to withdraw the bolt. In a modification, Figs. 7 and 8 (not shown) the levers are each provided with a pocket (34), the talon of the bolt is provided with recesses (35), (31), and the key is provided with an additional bolt step (19c) to permit rotation of the key through a further 180 degrees to move the bolt to a further unlocked position or beyond its unlocked position in which it actuates a door latch through a runner (36) or in which a door latch is actuated by the key. In this embodiment, a suitably modified flank lever (38) is used.
en
GB-1080491-A
GB-3221266-A
GB
A
A
null
1966-07-18
null
C07F7/18
null
A process for the manufacture of nucleosides
en
Novel compounds of the formula <FORM:1080491/C3/1> or <FORM:1080491/C3/2> where R is C1- 7 alkyl and R1 is present is acyl or alkyl are prepared by reacting 5-fluorouracil or 5-fluorocytosine or an N-acyl or N-alkyl derivative of the latter with a hex-(lower alkyl)silazane. The silazane is preferably hexamethyl silazane, and the reaction may suitably be carried out under reflux without further solvent. R1, if present, may be C1- 7 alkanoyl, halo-C1- 7 alkanoyl, benzoyl optionally substituted by halogen, C1- 7 alkyl or alkoxy, nitro, carboxy, e.g. p-toluoyl.ALSO:The N1-ribosyl, N1-21-deoxy-ribosyl, N1-glucopyranosyl and N1-arabinofuranosyl derivatives of 5-fluorourocil and 5-fluorocytosine, e.g. 1 - D - glucopyranosyl - 5 - fluoro - uracil which is claimed per se, are prepared by reacting <FORM:1080491/C2/1> OR <FORM:1080491/C2/2> where R is C1- 7 alkyl and R1, if present, is acyl or alkyl which may be prepared by the reaction of a hexa (C1- 7 alkyl) disilazane with 5-fluorouraci or 5-fluorocytosine which may have its amino group protected with alkyl or acyl with a ribofuranosyl, 2-deoxyribofurarosyl, glucopyranosyl or arabinofuranosyl halide in which the -OH groups are protected by alkyl or acyl groups, and removing the protecting groups from the resulting mixture of a - and b -nucleosides. A suitable group R1 is p-toluroyl and the sugar hydroxyl groups may suitably be protected by benzoyl, p-toluoyl or acetyl groups. The protecting groups may be removed by alcoholic ammonia, a strong base, or an alkali-metal or alkaline-earth-metal alcoholate. The condensation product may be separated into the a - and b -anomers before or after removal of the protecting groups.
en
GB-1584187-A
GB-3224177-A
GB
A
A
null
1977-08-01
null
C01B3/02
null
Hydrogen production
en
null
null
GB-871109-A
GB-3227356-A
GB
A
A
null
1956-10-23
null
F22G1/16
SAMPSON WILLIAM
Improved steam generating plant
en
871,109. Steam superheaters. FOSTER WHEELER Ltd. July 11, 1957 [Oct. 23, 1956], No. 32273/56. Class 123(3) Saturated or partly superheated steam from a water tube boiler 12 is heated to its final temperature in a separately-fired superheater 10 which may be disposed near the turbines &c., supplied from the boiler. The superheater is fired by oil burners 22 and receives combustion air from a forced draughed fan 24 also supplying air to the burners 32 of the boiler. Air from the fan 24 is proportioned between the boiler and superheater by dampers 26, 28, the opening of the damper 26 being regulated in accordance with the flow of steam through the superheater and its temperature to maintain the latter constant. The superheater 10 is supplied with excess air, the final steam temperature being regulated by variation of the proportion of this excess air by adjustment of the damper 26. Hot, oxygencontaining gases leaving the superheater are led through a mixer device 30 into the duct conveying air to the boiler burners 32. In a modification, the boiler has an integral superheater from which the steam flows directly to the independently-fired superheater and provision is made for some of the partly superheated steam to be branched off for use when required in auxiliary machinery, the temperature of the withdrawn steam being adjusted in an air desuperheater disposed in the duct conveying combustion air to the boiler burners.
en
GB-1039299-A
GB-3227762-A
GB
A
A
null
1962-08-22
null
B01D17/02
ROTH ERNEST ROBERT
Liquid treatment apparatus
en
Between an inlet channel 11 and an oil separator 10, Fig. 2, (not shown), there is provided a baffle 18, Fig. 3, (horizontal cross-section), (not shown), having openings 19 of adjustable width for the passage of liquid therethrough. The hinged vanes 21 whose positions determine the width of the openings are actuated by mechanism 22 which may be driven by an electric motor 33 under the control of a flow detector 31 having a probe 32 placed in the inlet channel to maintain constant velocity of flow into the oil separator 10. A control signal from a monitoring device, at the outlet of the separator, which measures performance (e.g. amount of oil not separated) may be combined with the control signal from detector 31. The separator may be cylindrical, with a central feed and peripheral outlets.
en
GB-1437137-A
GB-3231173-A
GB
A
A
null
1973-07-06
null
C07D277/56
null
Compositions of 2-amino 4-methyl thiazole carboxamides and methods for using them as psychotherapeutic agents
en
1437137 Inhibiting aggression UNIROYAL Inc and UNIROYAL Ltd 6 July 1973 [17 July 1972] 32311/73 Heading A5B Aggressive behavior in animals is inhibited by administration of a compound of formula: wherein (I) R1 is H, R2 is phenyl, 2, 6-dimethylphenyl, 2, 6-diethylphenyl, 2, 4, 6-trimethylphenyl, benzyl, p-chlorobenzyl, p-methoxybenzyl, or 2-phenylethyl, R3 is H and R4 is H, methyl or ethyl, (II) R1 is H, R2 is phenyl, R3 is nitroso and R4 is H, methyl or ethyl, (III) R1 is methyl, R2 is benzyl, R3 is H, R4 is H or (IV) R1 is n-butyl, R2 is nbutyl, R3 is H and R4 is H or a salt thereof. The compound may be administered orally, rectally or parenterally as a pill, tablet, capsule, suspension, solution or suppository.
en
GB-1431072-A
GB-3233273-A
GB
A
A
null
1973-07-06
null
C03B19/06
null
Method of making pressed glass products and glass products made thereby
en
1431072 Non-foamed pressed glass UNIVERSITY OF CALIFORNIA REGENTS OF 6 July 1973 [5 July 1972 (2)] 32332/73 Heading C1M A method of making a non-foamed glass product comprises mixing particulate usedcontainer glass together with a glass filling agent which is defined as an inert substance that will not foam under the conditions of the method, said used-container glass having the following concentration of foreign inclusions contained therein in per cent by weight, 0À1- 3 Fe, 0À1-2 Sn, 0À1-2 Al, 0À1-1 other metals, 0À1-1 cellulosics, 0À1-1 other organics and having an average reflectance of 5-95%; subjecting the resulting mix to temperature and pressure conditions sufficient to sinter and soften said glass but insufficient to melt said glass; maintaining said mix under said conditions while pressing said mix until said glass has been converted into a pressed glass coherent mass having a decorative multi-coloured appearance; and thereupon cooling said mix to below the solidification point thereof and recovering the glass product. The glass filling agent may be fly ash, sand, clay, asbestos, fibreglass together with additives such as pigments may also be added, but is preferably heat treated excreta which may be derived from sewage plant cake, livestock excreta and poultry excreta. Heat treatment is suitably carried out at 200- 1000‹ C. Typical heat treated excreta derived from human sewage cake contains 17À5 wt. per cent carbon, 1À7 wt. per cent hydrogen, 14À7 wt. per cent Si, 1À0 wt. per cent Al whilst heat treated excreta derived from cow dung may contain 31 wt. per cent carbon, 10 wt. per cent silicon, 3 wt. per cent alumina and 2 wt. per cent hydrogen. The treating temperature of the mix of glass and glass filling agent is usually kept at 500-1000‹ C. while treating pressures of 10-10,000 p.s.i.g. are applied. Typical evidence times for pressing operations are 1 second-60 minutes. The hot pressing can be supplemented by applying to surface(s) of the pressed product pigments in the form of inorganic oxides such as ferric oxide or lead oxide, or metals and/or sheets of glass to which the pressed product is bonded under suitable heat and pressure. Products may be used for roofing, floor and wall tiles, artificial slate or marble.
en
GB-1261308-A
GB-3243370-A
GB
A
A
null
1970-07-03
null
B02C17/24
null
Improvements in tube or ball mills
en
1,261,308. Tube mills. WEDAG WESTFA LIA DINNENDAHL "GROPPEL" A.G. 3 July, 1970 [25 July, 1969], No. 32433/70. Heading B2A. [Also in Division H2] A tube mill is driven directly by an electric motor 4 and has a braking device 5 at one or both ends of the mill tube for use when servicing. The motor strator surrounds the mill tube which thus forms the rotor, or alternatively has its rotor connected to a neck or trunnion bearing flange of the mill. The brake may be an hydraulic or mechanical jack, interlocked to the motor so that only one can be actuated at a time. The jack may engage the flanges of the tube 1 and its end cover 2.
en
GB-1126400-A
GB-3246267-A
GB
A
A
null
1967-07-14
null
H01L29/00
null
Semiconductor diode
en
1,126,400. Semi-conductor devices. ITT INDUSTRIES Inc. 14 July, 1967 [15 July, 1966], No. 32462/67. Heading H1K. A mesh of metal ribbons of rectangular crosssection is punched from metal foil to the shape shown in Fig. 4. As shown, the mesh may be attached to plastic strips 11 to give the structure mechanical support, or the mesh may be stuck to a supporting substrate. Silicon planar varistor diodes 8 are bonded to the mesh as shown, and may be surrounded by plastic encapsulant 10 several at a time by transfer moulding. By cutting the mesh at points 12, individual diodes are obtained with connecting leads 7. The ribbon mesh of Fig. 3 (not shown), is like the inner portion of Fig. 4-the rungs 7 do not extend beyond the sides 6 of the ladder- and is otherwise the same. The diodes are used as the tuning elements of cavity resonators; at least one of the diode leads acts as the inner conductor of the resonator and conforms to the shape of the inner surface of the resonator.
en
GB-439388-A
GB-3249834-A
GB
A
A
null
1934-11-12
null
H04R21/02
null
Improvements relating to telephone systems
en
439,388. Circuits for differential microphones; direct - call systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, Westminster, and SUTTON, G. W., 25, Cranleigh Road, Merton Park, London. Nov. 12, 1934, No. 32498. [Class 40 (iv)] Direct current is fed to each half of a differential microphone over an individual stabilizing or " anti-breathing " resistance, the two resistances being shunted by one or more condensers to provide a low-impedance A.C. path. Fig. 1 shows a direct-call system for communication between a principal and his secretary. The sensitive differential microphone MA at the principal's station is fed with direct current through resistances RA shunted by condensers CA and is coupled to the secretary's receiver RE through a transformer TA. A second differential microphone may be located if desired at the point X. The secretary's differential microphone MB is fed with direct current from the principal's station through resistances RB shunted by condensers CB and is coupled to the principal's loudspeaking receiver LS through a transformer TB or directly. Closure of the principal's calling key KA, KB completes the talking circuits and operates the buzzer BZ which is cut out by the switchhook contact SW when the receiver RE is lifted. Fig. 2 shows an operator's set in which the differential microphone is fed with direct current over resistances R shunted by a condenser C and is coupled to the cord circuits through a double-winding transformer T. The resistances R as well as a line-balancing resistance RS in the secondary circuit may be wound on the core of the transformer.
en
GB-174255-A
GB-3250520-A
GB
A
A
null
1920-11-18
null
F15B13/04
null
Improvements in and relating to working valves for hydraulic machinery
en
174,255. Lindsay, W. Nov. 18,1920. Multiple-way valves; closure members, rotary conical.-Working valves for hydraulic machinery comprise a block H having a passage H' connected to the service pipe and passages H<2> connected to the operating and return cylinders of an hydraulic press or to opposite ends of an hydraulic cylinder. A rotary valve plug has a longitudinal passage N<4> communicating with two radial passages N<5> for controlling entry of water into the passages H<2> and radial passages N<7>, N' for controlling exit of water from the passages H<2> to an exhaust pipe. The plug is of generally tapered form with parallel sided portions with recesses for the reception of packing N<1>, N<2>, N<3>, and a ball race P is provided between the plug shoulder and the gland 0. The operating lever L works over a quadrant having end stops and pin holes for securing the lever in various positions.
en
GB-911308-A
GB-3257059-A
GB
A
A
null
1959-09-24
null
D01H5/68
null
Apparatus for sucking away broken threads in spinning machines
en
911,308. End catchers for spinning-machines. SULZER FRERES S.A. Sept. 24, 1959 [June 16, 1959], No. 32570/59. Class 120 (2). In a broken end catcher for a spinning- machine in which suction nozzles 2 are provided near where the threads 5<SP>1</SP> issue from the drafting heads, movable guide members 10 are provided so that a part of the path of a suckedaway thread 5<SP>11</SP> between where the thread issues from the drafting head and the suction nozzle may be shifted to a position further away from the respective drafting head roller (see Fig. 2, not shown). In the form of Fig. 1 the guide member 10 is mounted on a tube 8 sliding in the suction tube 3 and is temporarily moved away, to shift the thread, by means of a handle 11 acting against the action of a return spring 12. In other embodiments each guide member takes the form of a wire stirrup or an annulus fitted close to the nozzle, the stirrup or annulus being forwardly pivotable to shift a broken thread away. In the embodiment of Fig. 6 (not shown) a single guide member is provided for a number of suction nozzles. The guide members may be mounted independently of the suction tubes and means are preferably provided to retain them in either their normal or their moved-away positions.
en
GB-1308263-A
GB-3257071-A
GB
A
A
null
1971-07-12
null
F04D19/04
null
Turbo molecular pumps
en
1308263 Molecular pumps ARTHUR PFEIFFER VAKUUMTECHNIK GmbH 12 July 1971 [15 July 1970] 32570/71 Heading F1C Rotor or stator wheels of a molecular pump each comprise thin-walled blades of constant thickness d, Fig. 2b, the pitch angle a of each blade continuously decreasing with increasing distance r from the wheel axis so that a #+ d = #2#r, #tan alpha sin alpha z where a is the axial dimension of the blades and z is the number of blades. The condition implies a zero overlap between each blade and its neighbour, when viewed in the axial direction. The rotor wheels may interengage by means of projections 9, Fig.5, fitting into recesses 8 to form a stack which is held together by tie rods 10.
en
GB-1557726-A
GB-3266776-A
GB
A
A
null
1977-11-07
null
G01G13/18
null
Weighing apparatus
en
null
null
GB-522421-A
GB-3272538-A
GB
A
A
null
1938-11-10
null
A61G15/02
null
Improvements in hydraulically actuated raising and lowering apparatus
en
522,421. Tables; chairs; easels. MAINA, J. Nov. 10, 1938, No. 32725. [Class 52 (iii)] [Also in Groups XXIX and XXV] Drawing tables, easels, dentists' chairs, surgical operating-tables &c. are mounted so as to be capable of vertical adjustment by means of a hydraulic-apparatus comprising a ram 4 capable of sliding in a cylinder 3 containing oil &c. and connected by a valve 7 to surrounding reservoir 2 containing oil and formed with airtight connection between itself and the cylinder 3 so that air under pressure can be pumped into the upper end of cylinder 2. The valve 7 is normally closed under spring action but by means of a pedal 8, or other device operable at a distance, the valve 7 may be opened to allow the ram to be raised to the desired position by the passage of the oil from the reservoir 2 under the action of the compressed air. The valve 7 is finally cut off, and the load on the ram 4 is then supported by the fluid beneath it. As applied to a draughtsman's table 6 carried by arms 28 on a shaft 26, the shaft 26 is mounted in a casing 27 carried by the ram 4, and the shaft 26 is angularly adjustable relatively to the casing by means of a pivot adjustment comprising a fixed gear 29, Fig. 3, with which engages an axially movable gear 30 secured to the shaft 26. The gears 29, 30 are normally held in engagement by balls 35 which are moved radially of the shaft 26 by a cam 36 on a sliding rod 32 which is moved axially by lever mechanism when it is required to adjust the table. This releases the locking action of the balls 35 and permits the table to be moved to the right in order to throw the gears 29, 30 out of engagement and thus permit of angular adjustment of the table.
en
GB-1187953-A
GB-3275666-A
GB
A
A
null
1966-07-21
null
F04C28/08
CARTER ALAN
Improvements relating to Speed Control of Engine Driven Rotary Compressors.
en
1,187,953. Rotary compressors. HYDROVANE COMPRESSOR CO. Ltd. July 20, 1967 [July 21, 1966], No.32756/66. Heading F1F. A fuel-control device to regulate the speed of an I. C. engine for driving a rotary positivedisplacement compressor of the outwardly-sliding vane type includes a bellows 10 made of e. g. plastics material, and fixed to an immovable body 11 containing an axially-movable rod 15, which is attached at end end thereof to a disc 12 engaging with the bellows and is furnished with an annular disc or washer 30 that constitutes a piston, the latter being loosely lodged in a cylinder 17 that is charged with either a liquid or a paste through a passage 32, whereby movement of the disc 12 in response to changes in the pressure of gas within an inlet in the compressor (not shown) produces corresponding movement of the rod 15 against the retarding action of the piston. The pressure aforesaid is communicated to the interior of the bellows through a pipe-union 20 in a bore 21, containing a non-return valve-member 23, and a passage 24, the latter being in communication with a flow-restricting orifice 25 constituting a vent. The disc 12 abuts a compression spring 27 that effects inflation of the bellows through the orifice 25 when the pressure in said inlet rises and causes the valve-member 23 to move into its closing position. The rod 15 is connected by a lever (not shown) to a further rod that is coupled to a fuel-control member in the engine. Inflation of the bellows results in an increase in the rate of flow of fuel to the engine; and, to regulate the maximum speed of the engine, an adjustable stoprod 37 for the disc 12 is lodged in a boss 36 upon a cover 35 for the bellows. Axial movement of the rod 37 can be effected by rotating a screw 38 having an eccentric portion engaging with a circumferentially-orientated limb of an L-shaped groove 39 in the rod. Coarse adjustment of the rod can be performed when the rod is rotated to bring the axially-orientated limb of the groove into alignment with the said portion of the screw. The rod 37 may be replaced by a screw (45, Fig. 2, not shown), which has a circlip (47) thereon to restrict outward displacement thereof. The walls of the bellows are reinforced by rings 26.
en
GB-1161262-A
GB-3289767-A
GB
A
A
null
1967-07-18
null
C07H1/02
null
A Method for Producing Adenosine Diphosphate and Adenosine Triphosphate
en
1,161,262. Adenosine di- and tri-phosphate. KYOWA HAKKO KOGYO CO. Ltd. 18 July, 1967 [8 Aug., 1966], No. 32897/67. Heading C2C. Adenosine diphosphate and triphosphate are prepared by culturing a micro-organism belonging to a genus selected from Corynebacterium, Arthrobacter and Micrococcus in an aqueous nutrient medium under aerobic conditions in the presence of 5 to 20% carbohydrates as the main carbon source, 0À4% to 3À0% inorganic phosphates as PO 4 <SP>3-</SP> ion and adenine or its derivatives in an amount sufficient to accumulate adenosine di- and triphosphate, percentages being by weight. Fermentation is preferably conducted at a temperature of 20‹ to 40‹ C. and a pH of 5 to 9.
en
GB-1432666-A
GB-3298973-A
GB
A
A
null
1973-07-11
null
H04M19/02
null
System for detecting looping of a subscribers telephone line
en
1432666 Automatic exchange systems JEUMONT-SCHNEIDER 11 July 1973 [20 July 1972] 32989/73 Heading H4K A subscriber line circuit includes in addition to a speech circuit including a threshold circuit adapted to detect when the subscriber goes offhook, a second branch controlled by a ringing relay so as to be connected to the subscribers line for each burst of ringing signals, said second branch including a transformer for the supply of ringing current, a battery and connected in parallel a capacitor, a diode and a further threshold detector, said further detector being adapted to detect off-hook signals during the ringing signal bursts. As shown the exchange is connected for speech at S and normally supplies power to the subscribers line connected at L. To send ringing bursts the exchange energizes a relay 8 which moves its contacts to positions 9 and 10. Ringing tones supplied from the mains over transformer T2 are then coupled to line and via resistors R3, R4 back to the caller. If the called party answers during a ringing burst D.C. current from battery 12 flows through relay 20 enabling it and supplying an off-hook indication at 21. Diode 18 by-passes the unwanted half of the ringing current. Zener diode 17 prevents the capacitor which is electrolytic from being reverse biased and Zener diode 19 is provided to prevent relay 20 responding to residual voltage due to Zener diode 17. Thermistors 2, 3 and resistors R1, R2 which may also be thermistors protect against short-circuits and relays 4 and 20 and their contacts 5 and 21 may be replaced by photo-emissive diodes and phototransistors.
en
GB-325238-A
GB-3304428-A
GB
A
A
null
1928-11-12
null
C03B5/04
null
Improvements in glass melting apparatus
en
325,238. Morton, W. A. Nov. 12, 1928. Glass furnaces; reverberatory furnaces.-In a tank furnace for melting glass, of the kind in which the feeding of the raw materials and the delivery of the molten glass are effected at opposite ends of the furnace, the hearth is formed to accelerate the flow of glass towards the delivery end, and the burners are arranged to discharge in a direction opposed to the direction of flow of the glass. As shown the hearth is formed with an horizontal portion 2 near the feed end 11, and an inclined portion 3 extending to the delivery trough 4. The burners 17 are inclined to the longitudinal axis of the furnace as shown in Fig. 1, and the outlet ports 8 are spaced from the end wall so that the heating-gases do not pass over the freshly charged material. The walls at the feed end may be lagged with insulating- material 12.
en
GB-334121-A
GB-3310629-A
GB
A
A
null
1929-10-31
null
A45C11/02
null
Improvements in hat bags, or the like
en
334,121. Frenchs, Ltd., and Steventon, H. E. Oct. 31, 1929. Bags.-The flexible hinged disc cover 4 of a circular shaped hat or like bag is provided with a flap 5 forming a supplementary pocket to which access can be had without opening the cover. The pocket is adapted to be closed by a sliding- clasp or other fastener 8.
en
GB-1062717-A
GB-3315564-A
GB
A
A
null
1964-08-14
null
A44B11/24
null
Improvements relating to belt buckles
en
1,062,717. Buckles. A. ROSSI. Aug. 14, 1964, No. 33155/64. Heading E2A. A buckle for waist and other belts comprises a buckle housing having a front panel 22, top and bottom longitudinal rearwardly projecting flanges 24, a pair of slidable members 46, 48 slidable in the flanges rearwardly of the panel 22, resilient means 50 coupling the slidable members together and biased to constantly urge the plates toward one another, means for fixing one end of the belt 14 to one slidable member 46 to extend through one of the buckle body open ends, and means carried by the other slidable member 48 for detachably coupling the other end of the belt 16 thereto to extend through the other open buckle body end. Each flange 24 has a longitudinally projecting rib 30, the inner channel 32 of which forms a guide track for the slidable members. The rearward ends of the flanges 44 are outwardly convergent to retain a cover slide 78 in position. The flat plate slidable member 46 has a cut out tongue 54 projecting towards the front plate and two pointed spurs 56 which pass through apertures in the fixed belt end 14. The inner transverse edge of the slidable member has forwardly turned tabs 62 which abut against the slidable member 48 when the slidable members are drawn together by springs 50 which are connected to tongues 54 and 72 on the slidable members 46, 48 respectively. The slidable member 48 carries the anchoring pin 64 with which the apertured free end 16 of the belt is detachably connected, the pin being slightly angled to ensure that the belt is securely held. The cover slide plat 78 can be positioned on the rear of the buckle to cover the anchoring pin when the buckle is engaged, the cover plate being slid along the flanges while the buckle is fastened to uncover the anchoring pin. When the two ends of the belt are pulled in opposite directions the slidable members are pulled apart against the action of the springs to give resilience to the belt.
en
GB-1486412-A
GB-3327973-A
GB
A
A
null
1974-10-11
null
G01W1/14
null
Method and apparatus for measuring residual rainfall
en
1486412 Measuring rainfall BESTEL-DEAN Ltd 11 Oct 1974 [12 July 1973] 33279/73 Heading G1N(A) Apparatus for measuring rainfall comprises a capacitor and means for supplying a predetermined change to the capacitor each time the increment of fallen rain equals a predetermined amount, a resistor across it, adjustable so that the rate of charge leakage through it is a function of the rate of rain dispersal, and means responsive to the resulting capacitor voltage indicating residual rainfall. The method is also claimed. Preferably the rain gauge comprises two buckets on a common pivot. When one bucket has a certain weight of rain it tips the arrangement to empty, to substitute the other bucket and operate a switch of a cricuit which causes a constant current generator to supply a predetermined amount of change which is adjustable to the capacitor, which is connected to high input impedance FET in an amplifier feeding an ammeter reading mm of rain, and a threshold detector, which causes a thyratrom to fire when the value exceeds that of a reference voltage, adjustable by a variable resistor, changing an output line from logic 1 to 0, which closes a relay setting off an alarm, or maintains it closed. A logic circuit on a second input to said relay only allows it to be operated immediately following the tipping of a bucket, and only when the voltage applied to the threshold detector falls below cut off level will the relay contacts open and reset the alarm. The above circuit can be for high intensity rain, with a second similar circuit for low intensity steady rain with the resistor across its capacitor adjusted to a different value, and operating a second alarm. The low intensity relay is inhibited by a logic circuit when the high intensity alarm is sounding. A plurality of such circuits having capacitors receiving charge increments may be used. Detailed diagrams and description of the circuit are given.
en
GB-1111196-A
GB-3331166-A
GB
A
A
null
1966-07-25
null
C07C29/149
null
Process for the preparation of unsaturated fatty alcohols
en
Preparation of unsaturated fatty alcohols by the continuous hydrogenation of unsaturated fatty acids with 8 to 22 carbon atoms, or their esters with monohydric aliphatic alcohols, at elevated temperatures and pressure, with a large excess of hydrogen, in the presence of zinc-chromium or zinc-aluminium catalysts in tablet form, which have been subjected to a high-temperature treatment at 400-1000 DEG C. in a reducing atmosphere. The starting materials may be mono- or poly-unsaturated fatty acids occurring in natural fats or specified esters thereof particularly the readily volatile esters with C1- 4 monohydric alcohols such as methanol. The catalysts are obtained by mixing zinc oxide with aqueous chromic acid or with an aqueous suspension of chromic hydroxide, g -aluminium oxide or amorphous or crystalline aluminium hydroxides (the hydroxides preferably being freshly prepared); drying the slurry; forming the dried mixture into tablets; optionally roasting in air or oxygen when chromates are present in the mixture and, finally, heating at normal pressure for 1 to 10 hours at 400 DEG to 1000 DEG C. in hydrogen and/or carbon monoxide (e.g. derived in situ from methanol vapour). The unsaturated fatty acids or their esters are hydrogenated, optionally in the presence of monohydric alcohols having 1 to 4 carbon atoms such as methanol, substantially in the vapour phase at 250 DEG to 330 DEG C., 100 to 500 atmospheres and with 10 to 100 Nm3 of hydrogen per litre of material to be hydrogenated. The hydrogenation of oleic acid, methyl and iso-propyl oleate, soya bean fatty acid methyl ester and sperm oil to give the corresponding alcohols is described and the dependence of the activity of the catalyst on the mode of pretreatment is demonstrated by comparative examples.ALSO:Zinc-chromium or zinc-aluminium catalysts, preferably in tablet form, which have been subjected to high temperature treatment in a reducing atmosphere are obtained by mixing zinc oxide with aqueous suspensions of chromic oxide or hydroxide, g -aluminium oxide or amorphous or crystalline aluminium hydroxides (the hydroxides preferably being freshly prepared), drying the slurry, forming the dried mixture into tablets, optionally roasting in air or oxygen when chromates are present in the mixture, and then heating at normal pressure for 1 to 10 hr. at 400 DEG to 1000 DEG C. in hydrogen and/or carbon monoxide (e.g. derived in situ from methanol vapour). The preparation of catalysts from zinc oxide (8.1 Kg.) and chromium (VI) oxide (5 Kg.) or chromic hydroxide obtained by reducing chromium (VI) oxide (5 Kg.) with methanol, zinc oxide (1 Kg.) and amorphous or crystalline aluminium hydroxide (1 Kg.), g -aluminium oxide, aluminium hydroxide precipitated from Al2(SO4)3.18H2O (4.26 Kg.), or chromium (VI) oxide obtained by treating chromic sulphate (2.2 Kg.) with ammonium hydroxide.
en
GB-342353-A
GB-3332729-A
GB
A
A
null
1929-11-01
null
B24D15/08
null
Improvements in razor sharpeners
en
342,353. Stropping-apparatus. GILL, H. A., 51, Chancery Lane, London.-(Segal Safety Razor Corporation; 135, West 26th Street, New York, U.S.A.) Nov. 1, 1929, No. 33327. [Class 60.] A device for sharpening doubleedged safety razor blades consists of a base 10 with a top surface 17 having side walls 27 in which are mounted two stropping- rollers 30 geared together and to similar rollers, one carried by each of two pivoted cover members 28, by gears 29. The blade 24, together with the clamping-plate 23 of the razor, fits over prongs 25, which enter openings in the prongs of the clamping-plate and these parts are retained in the device by the arms of a U-shaped spring 26 ; when the razor is required for use, the guard and handle are placed in position over the blade, the covers 28 are lifted, and the razor removed. When not in use, the guard and handle may be stored on a spring-pressed support 12 in a drawer fitting in the base 10. The prongs 25 may be formed as parts of the spring 26.
en
GB-1527138-A
GB-3339676-A
GB
A
A
null
1975-09-19
null
H02K1/34
null
Linear-motors
en
1527138 Magnetic circuits TECUMSEH PRODUCTS CO 19 Sept 1975 [19 Sept 1974] 33396/76 Divided out of 1527137 Heading H2A A pair of coaxial magnetic poles 136, 138 in a magnetic circuit have surfaces 136a, 138a which define a space of part-circular cross-section in a plane parallel to the axis of the poles, and have exposed pairs of coplanar air-gap surfaces 140x, 142x, 140y, 142y lying in planes X, Y perpendicular to the axis of the poles; the distance between the planes X, Y is less than the maximum diameter of the part-circular cross-section and, measured in inches, is numerically greater than 16À7% of the cross-sectional area of the poles measured in square inches. In the arrangement shown, the surfaces 136a, 138a define a conical air gap.
en
GB-212613-A
GB-3340422-A
GB
A
A
null
1922-12-07
null
A61Q17/00
null
A preparation removable by washing for protecting the skin from paints, polishes, stains and the like
en
A composition for coating the hands &c. to protect them from paints, polishes, and other stains, comprises glue, gelatine, gelatine or other gum soluble in water, whiting or other mild abrasive powder, and a fatty oil, preferably with soap or its ingredients, and with or without a gum dissolved in spirit. The composition is removed by washing with soap and water. In an example a solution of 4 oz. of glue in 4 oz. of water is boiled with 4 oz. of whiting, 4 oz. of raw linseed oil, 3/4 oz. of soap, 8 oz. of sandarac gum dissolved in methylated spirit, and water to make 20 oz. of the composition.
en
GB-741465-A
GB-3350653-A
GB
A
A
null
1953-12-02
null
H03B5/10
HODGIN DAVID M
Thermionic oscillator circuit
en
741,465. Valve generating circuits. COLLINS RADIO CO. Dec. 2, 1953, No. 33506/53. Class 40 (6). An oscillator comprises a tuned circuit C1, L1, coupled to a valve V1 whose gain is reduced to the order of unity or less by means of a cathode feedback resistor R1. The anode circuit of the valve V1 is coupled to a valve V2, the screen grid of which is provided with a load resistor R5 and is back-coupled via condenser C3 to a tap on the tuned circuit. The output is taken from the anode circuit of the valve V2. The arrangement is more particularly intended to give improved stability and reduce the influence of output loading upon oscillator frequency.
en
GB-1158074-A
GB-3361467-A
GB
A
A
2434-07-11
1967-07-21
null
B41M5/035
null
Improvements in or relating to hectographic copying
en
1,158,074. Copying process. COLUMBIA RIBBON & CARBON MFG. CO. Inc. 21 July, 1967 [10 Oct., 1966], No. 33614/67. Heading B6C. [Also in Division D2] A copying process uses pressure-sensitive transfer paper that comprises a flexible foundation paper or plastics sheet carrying a transfer layer of synthetic thermoplastic resinous binder in which are dispersed uniformly solid discrete particles of a hectographic dye and discrete crystals or pulverized particles of a solid material that melts between 90‹ and 200‹ F. to form a solvent for the dye. The resinous binder may be a cellulose ether such as ethylcellulose, vinyl resin or acrylic resin; the dye may be triphenyl-methane or colourless colourforming reactants such as gallic acid and ferric chloride, or a carbinol or azo dye whose coreactants are included either in the transfer layer or on a copy sheet. The reactants do not react until heated to 90‹ to 200‹ F. and dissolved. Black iron oxide may also be present as an infrared absorber. Examples of dye solvents are triphenyl phosphate, soaps such as calcium stearate, metallic resinates and hard waxes. The composition may also include oily modifying agents for the binder material, such as rape-seed and mineral oils, that do not dissolve the solid dye and its solid potential solvent. A soft wax supercoating. of beeswax and microcrystalline wax containing polybutene resin, or a resinous binder supercoating such as chlorinated rubber, polyethylene or cellulose plastics material, may be applied. The transfer sheet is used to image a hectograph transfer sheet by typing, and copies made from the master by heating master and the copy sheet in contact with it to melt the dye solvent and dissolve the dye to form a coloured image on the copy sheet, or the master may be first heated and then brought into contact with each copy sheet while the dye solvent is still in melted condition. Preferably the master and copy sheets are exposed to infra-red radiation in a conventional exposure machine. Alternatively a heated platen or oven may be used.
en
GB-325279-A
GB-3364128-A
GB
A
A
null
1928-11-16
null
H01B13/02
null
Improvements in or relating to insulated electrical conductors
en
325,279. Standard Telephones & Cables, Ltd., and Weston, W. K. Nov. 16, 1928. Cores, covering by winding.-Means for applying strings 3, 4 to the conducting core of an insulated air-space cable, so that the strings 3, 4 are diametrically opposite each other, comprises a string bobbin carrier consisting of a circular base 10, and a cylindrical cover 11 to protect a string bobbin 12, which is carried on a hollow spindle 9 fitted with drag washers 13. The strings are fed through guide holes 14, 15, 16, 17 in the cover 11 to a guide 18 where they are applied to the core 1 which passes through the hollow spindle 9. As shown in Fig. 5, the guide 18 comprises a tubular member mounted on the spindle 9, and formed with eyes 19, 20 through which the strings pass to the core 1. In an alternative construction of guide, the eyes are placed diametrically opposite each other on the guide 18.
en
GB-1567039-A
GB-3367376-A
GB
A
A
null
1976-08-12
null
G21C1/03
null
Liquid metal cooled nuclear reactor constructions
en
null
null
GB-857375-A
GB-3370559-A
GB
A
A
null
1959-10-05
null
H05B3/03
null
Improvements in or relating to an electrode for an electrically heated glass furnace
en
857,375. Furnace electrodes. COMPAGNIE DE SAINT-GOBAIN. Oct. 5, 1959 [Oct. 3, 1958; July 9, 1959], No. 33705/59. Class 39(3). An electrode for a glass furnace comprises a metal bar 4 having a part exposed to the glass in the furnace, a current distributing member 10 attached to that part and an adherent sheath 8 of refractory material surrounding at least a portion of the remainder of the bar. The end of the sheath may be covered by a metal member 12 similar to the member 10, and a third such member 11 may also be provided. The end of the bar 4 has a threaded engagement with a current conducting member 7 similarly sheathed in refractory material 9. Coolant is circulated from a cap 16 through tube 17 and a bore 18 in the member 7. Cooling medium is also passed through an annular member 3 thereby solidifying the glass at the point where the electrode passes into the furnace wall. Spent electrodes are ejected into the bath and as the specific gravity of the refractory material 8 is lower than that of the glass they may be recovered from the surface of the glass melt.
en
GB-452748-A
GB-3372335-A
GB
A
A
null
1935-12-05
null
H04R1/20
null
Improvement in reproducers for phonographs
en
452,748. Sound-reproducing devices. DICTAPHONE CORPORATION, 375, Howard Avenue, Bridgeport, Connecticut, U.S.A.- (Assignees of Norton, L. D. ; 375, Howard Avenue, Bridgeport, Connecticut, U.S.A.) Dec. 5, 1935, No. 33723. Convention date, April 15. [Classes 13 and 40 (ii)] A sound-modifying device adapted under variable control conditions to permit transmission of sound to a sound-conveying conduit and escape of sound energy to the atmosphere includes a cylindrical valve member 20 mounted in a housing 14 having an inlet 22 from a sound chamber 19 and a laterally-extending sound outlet 25, the member 20 being provided with a sound passage 23 and being adapted to cooperate with a vent 37. As shown, a passage 35 of diminishing depth communicates with the passage 23. Rotation of the valve member to diminish the sound outlet simultaneously diminishes, through the helical surface 38, the outlet of the vent 37. The valve member is located by a stud engaging a groove 33 and its rotation is limited by a stop 34. A spring- pressed plunger 31 bears against the underside of the milled head and an indicating finger 28 is provided.
en
GB-322625-A
GB-3375928-A
GB
A
A
null
1928-11-17
null
A47B3/12
null
Improvement in folding stands or tables
en
322,625. Faudels, Ltd., and Thompson, F. B. Nov. 17, 1928. Folding tables.-A folding table has a plurality of legs which are spaced when open by two trays one of which fits into recesses in the leg tops and the other into recesses in lower cross-bars. The legs A, B, Figs. 1, 2, are joined by crossbars E, F to which the other legs are pivoted through cross-bars L<1>, L<2>, K<1>, K<2>, &c. The tops of the legs' are formed with recesses A<3>, B<3>, P &c., and the bottom bars with recesses C', K<4> &c. so that when the legs are opened out a tray V will fit into the top recess and a smaller one W into the lower recess, the trays then holding the stand rigid.
en
GB-1570960-A
GB-3379277-A
GB
A
A
null
1977-08-11
null
F25D13/06
null
Cooling or freezing apparatus
en
null
null
GB-1116549-A
GB-3388066-A
GB
A
A
null
1966-07-28
null
F02M69/00
null
Internal combustion engine fuel systems
en
1,116,549. Spray carburetters. GENERAL MOTORS CORPORATION. July 28, 1966 [Sept. 16, 1965j, No. 33880/66. Heading F1B. [Also in Division G3] The fuel delivery from a nozzle 50 is controlled by a fluid amplifier arrangement 18 comprising several fluid amplifiers 24 ... 28. Fuel is supplied by pump 22 to chamber 20 supplying the amplifier inlets 24 ... 28, each amplifier having a pair of outlets 30, 32, 34, 36 and 38, 40, one set of outlets 30, 35, 38 being interconnected and leading back to tank 42 whilst the other set of outlets 37, 36, 40, are connected to nozzle 50. At low air flow the flow from inlet 24 is split between outlets 30, 32 whilst that from inlet 26, 28, discharges solely into outlets 34, 38. As the suction at the Venturi throat 16 increases, more fuel from inlet 34 is diverted into outlet 32 and when all the fuel is discharging into outlet 32 fuel from inlet 26 begins to be diverted into outlet 36. At highest suction the inlet 28 becomes operative to deliver into outlet 40.
en
GB-1481791-A
GB-3394873-A
GB
A
A
null
1973-07-17
null
B64D25/02
null
Arm restraint system for an ejection seat
en
1481791 Ejector-seat arm restraint system DEFENCE SECRETARY OF STATE FOR and BEAUFORT (AIR-SEA) EQUIPMENT Ltd 15 July 1974 [17 July 1973] 33948/73 Heading B7G [Also in Division A3] Apparatus for restraining the arms of a pilot of an ejector seat during the ejection sequence comprises bands 5 forming part of the sleeves of a life jacket 3 and each connected to one end of a tape 6 releasably fastened between its ends to the sleeve by hook and eye tape. The tape 6 carries a free running edge 7 attached by a releasable connector 8 to a further tape 10 which passes through a snubbing device 13 connected to the ejector seat, the tape 10 being attached at its lower end by a shear fastening to the floor of the aircraft cockpit. The tape 10 is enclosed within a pliable sleeve 11 attached to the connector 8 and the snubbing device 13 and a further sleeve may be positioned between the snubbing device and the floor. In an alternative embodiment the tape 6 is secured at one end to the lower band 5, looped through the upper band and secured at the other end to attachments on the pilot's harness quick release box. Specification 996,635 is referred to.
en
GB-339795-A
GB-339795D-A
GB
A
A
null
null
null
null
null
null
null
339,795. Walker, Ltd., T., Walker, G. T., and Wood, H. H. Dec. 16, 1929. Buckles.-A fartening device for use with bands, straps, webbing, and the like comprises a metal plate 3 formed with a raised part or rib 5 and having a bent up part 3a which is clenched down on to the end of a band or the like with its edge adjacent the raised part or rib 5. The Figure shows the application of the device as a stocking suspender fitting which is provided with a gripping lever 1 to retain the band loop 4 in the adjusted position.
en
GB-924280-A
GB-3402160-A
GB
A
A
null
1960-10-04
null
H02B1/04
null
Pushbutton-operated overload electric switch
en
924,280. Electrically - tripped switches. ELLENBERGER & POENSGEN G.m.b.H. Oct. 4, 1960 [Oct. 26, 1959], No. 34021/60. Class 38 (5). A push-button overload switch comprising an operating mechanism, angular contact bridge and thermal release generally similar to Specification 828,754, has a manual release lever 33 pivoted on a hollow rivet 34, the lever arm 36 engaging a tab 28<SP>1</SP> on the bimetallic strip 28 and the lever end 331 having a stepshaped surface 37. When pressure is applied to the end 33<SP>1</SP> in a direction toward the axis of the push-button 20, the arm 36 deflects the strip 28 to the right and disengages members 29, 30 to trip the switch, the lever 33 being restored upon removal of the operating pressure by the resilience of the strip 28. The rivet 34 and its fellow 35 connect the two parts 1, 2 of the switch housing which is mounted so that projections 5, 6 on the terminal strips 3, 4 engage a contact spring 9 and terminal 11 on a fuse box 7. A number of switches may be secured together on the base 7 by bolts 38 passing through each rivet 34 and through a recess 41 in each housing, the bolts 38 having end nuts 39 and spacers 40, Fig. 6. If the base 7 is omitted the switches may be mounted by angle brackets 42 secured to the bolts 38. The terminal strips may project from one end of the switch housing, Fig. 7 (not shown), may be modified to allow of soldering or to permit the switch to be plugged into a standard wall plug, or may be replaced by plug pins as in Specification 709,114 to avoid the need for the securing members 38, 39, 40. The switch may have an electromagnetic release in place of or addition to the thermal release.
en
GB-366986-A
GB-3412330-A
GB
A
A
null
1930-11-12
null
A47J27/21
null
Improvements in or relating to electric kettles or like vessels for heating liquids
en
366,986. Electric kettles &c. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and ARCHER, C. H., 43, Charles Berrington Road, Wavertree, both in Liverpool. Nov. 12, 1930, No. 34123. [Class 39 (iii).] A heating element 6 consisting of a flat strip bent to cylindrical form is inserted in an annular groove 5 formed in the base of the kettle or the like. The groove is formed by spinning.
en
GB-1055562-A
GB-3413866-A
GB
A
A
null
1963-07-02
null
C08L77/00
null
Synthetic resin saturant for fibrous webs
en
An impregnant for fibrous webs comprises a thermosetting alkali-catalysed unsubstituted phenol-formaldehyde resin and an alcohol-soluble interpolyamide of intrinsic viscosity at least 0.4 which is the reaction product of (a) a C6- 14 diprimary diamine, (b) a C6- 12 dicarboxylic acid, and (c) a second, different amine or acid as defined for (a) and (b) or an amino acid. In the Example 2% of a mixture of 28% of a 1:1.7 molar phenol-formaldehyde resin and 72% of an interpolymer of hexamethylene diamine, adipic acid, sebacic acid and amino-caproic acid is dissolved in methanol.ALSO:Woven or non-woven fibrous webs, e.g. cloth or paper, are impregnated with a composition comprising a thermosetting alkali-catalysed unsubstituted phenol-formaldehyde resin and an alcohol-soluble interpolyamide of intrinsic viscosity at least 0.4 which is the reaction product of (a) a C6-14 diprimary diamine (b) a C6-12 dicarboxylic acid and (c) a second different amine or acid as defined for (a) or (b) or an amino acid. In the example standard wood pulp cylinder paper is impregnated with a methanolic solution of a phenol-aldehyde resin and an interpolymer of hexamethylene diamine, adipic acid, sebacic acid and aminocaproic acid. Besides increasing the tear strength the impregnant provides a waterproofing effect.
en
GB-1434433-A
GB-3414773-A
GB
A
A
null
1973-07-18
null
D01H4/50
null
Open-end yarn spinning machine
en
1434433 Clutch control; reversing gearing ELITEX 18 July 1973 [8 Aug 1972] 34147/73 Headings F2L and F2D In an open-end yarn spinning machine wherein yarn withdrawing and winding rollers, 3, 4 respectively are driven through a gear-box 2 having a forward electromagnetic clutch 7 and a reverse electromagnetic clutch 8, the clutch 8 is operated by closure of a switch to return a selected length to a spinning chamber on breakage of the yarn and then the coil 10 of the forward clutch 7 is operated, after disengagement of clutch 8, through a circuit comprising a first voltage source 20, a second voltage source 13 and a pair of switches 17, 16 for selecting between these sources. In the embodiment shown a source 12 is used to charge up a capacitor 20 (forming the first source) and on closure of switch 17, switch 16 is also moved, from the capacitor-charging position shown, to discharge capacitor 20 through the coil via a resistor 19 and so close clutch 17. When capacitor 20 has discharged sufficiently the diode 18 allows the source 13 to maintain the clutch 7 in engagement, source 12 being of higher voltage than source 13. In an alternative embodiment (Fig. 2, not shown) there is no diode 18 and a changeover switch (11) automatically switches to the source 13 a predetermined time after closure of switch 17, source 12 where being permanently connected in parallel with a capacitor (15). The circuits for operating clutch 7 ensure that while the clutch 7 is braking the reverse rotation induced by clutch 8 it is overexcited to speed the process.
en
GB-209924-A
GB-3443822-A
GB
A
A
null
1922-12-18
null
B61L5/00
null
Improvements in or relating to railway point or switch mechanism
en
209,924. Williams, L. W. Dec. 18, 1922. Stretcher bars; point-tongues, mounting of.- The greater part of the weight of the point tongues is taken from off the slide-chairs by supporting the stretcher bar 8, Fig. 4, or point tongue on one or more pulleys or rollers carried by the rail or sleeper and supported by a spring or a spring-controlled bracket or brackets 1. The bracket may have a screw-threaded stud 2 for adjusting the spring 4 and may be supported, as shown, by a strap 3 or suspended from the strap. The spring may be adjusted so that the tongues are normally raised just clear of the slide-chairs 9. In a modification, Fig. 7, the stock rail 7 carries a bracket 13a engaged by a roller 12 adjustably spring supported by a bracket 13 fixed to the tongue 11.
en
GB-342795-A
GB-3452529-A
GB
A
A
null
1929-11-12
null
A47J43/24
null
Improvements in, and relating to, colanders
en
342,795. Strainers. THOMAS, A. E., 1, Largewood Avenue, Tolworth, Surrey. Nov. 12, 1929, No. 34525. [Class 46.] A colander for straining vegetables consists of a perforated vessel a of uniform cross-section, standing on a base c and having a removable disc fitting slidably in the vessel and adapted to be pressed down on to the contents. Pairs of parallel slots e, f are cut on opposite sides of the vessel. A perforate or imperforate disc i slides within the vessel and may be pressed down by rods j, k which slide in the slots e, f. The ends of the rods protrude outside the vessel and are joined to form handles. Alternatively, only one slot o, Fig. 3, is provided and a series of notches p is arranged to engage the rim of the disc i. Pressure is applied by the handle m in the slot o. The disc is easily removable for filling by lifting out of the slots.
en
GB-1209537-A
GB-3458868-A
GB
A
A
null
1968-07-19
null
B01J20/18
null
Method of producing sodium carbonate
en
1,209,537. Sodium carbonate. CHEMISCHE FABRIK KALK G.m.b.H. 19 July, 1968 [6 Sept., 1967], No. 34588/68. Heading C1A. Sodium carbonate is prepared by introducing a 20 to 60% by weight aqueous sodium hydroxide solution and a gas containing CO 2 into a saturated sodium carbonate solution in a proportion such that the reaction mixture contains an excess of up to 10% by weight of free sodium hydroxide, the temperature of the reaction mixture being adjusted by controlling the temperature of the gaseous or aqueous reactant or by indirect heating so that the difference in partial pressure of the water vapour contained in the gas and reaction mixture is sufficient to remove, with the waste gases, all the water in the aqueous reactant, continuously removing the resulting crystal sludge from the reaction mixture, separating the sodium carbonate crystals therefrom and recycling the mother liquor to the reaction mixture.
en
GB-194035-A
GB-3464621-A
GB
A
A
null
1921-12-23
null
F04C2/352
null
Improvements in rotary pumps, motors and the like
en
null
null
GB-176507-A
GB-3466120-A
GB
A
A
null
1920-12-08
null
F16K3/20
null
Improvements in or relating to valves, cocks, or taps
en
176,507. Burdon, C. B., (Wilson, W. G.). Dec. 8, 1920. Sliding-valves; rotary spherical v a l v e s ; seats. - Sliding and rotary spherical valves are arranged to work only between yielding parts, one of which consists of a yielding valve seating. As shown in Figs. 2 and 9, the valve member works between a tubular seat b which is yieldingly backed with elastic packing b<2>, and a tubular or perforated presserpiece c held against the valve by spring pressure. This arrangement permits the valve proper or its seat, or both, to be made of glass, porcelain, or other vitreous, ceramic, or brittle material so as to resist acids or corrosive liquids. The slide valve a, Fig. 2, is connected by a pin to a crosshead e<1> of the screwed valve spindle e<2> which is prevented from rotating by the guide-plates e<5>. The valve is guided at the lateral edges by guiderods. The tubular presser c is formed with external side pins c' engaged by a forked member g on a shaft g<1> which passes to the outside of the casing. An adjustable spring operates upon an external arm of the shaft g<1> to provide the spring pressure. In a modification the presser tube c Fig. 9, is wedge-shaped with the spring c<3> disposed within a removable cap. In another arrangement the spring is disposed coaxially around the tubular presser. The drawings also show the application of the seat and presser tube illustrated in Fig. 2 to a rotary spherical valve.
en
GB-1603866-A
GB-3481477-A
GB
A
A
null
1977-08-19
null
F22B31/00
null
Feed of material to fluidised beds
en
null
null
GB-305339-A
GB-3489427-A
GB
A
A
1037-12-17
1927-12-23
null
G03B23/10
null
Improvements in projecting machines
en
305,339. Orstedt, K. E. Dec. 23, 1927. Optical-projection apparatus. applications of; prisms and like elements, rotating. - An intermittently rotated wheel 31 carrying transparencies 42 arranged round its rim in planes parallel to its axis is operated in timed relation to two light shutters. An actuating motor 12 is geared to a cam which moves a pawl acting on a ratchet on the wheel shaft, and a spring-retracted pawl 44 engages notches 43 in the wheel rim 32 to register the transparencies in the light beam. The transparencies are detachably mounted on the rim between posts 33, Fig. 6, comprising a halt-round portion slotted at 36 to receive a spring 37 and the tongue 38 of a securing bar 39, screws 40 passing through both parts being tightened by nuts 41 to grip the edges of the transparencies. The condenser 59 is contained within a rectangular box 57 having a hinged door. The lamp 68 is adjustably mounted on an insulating base 62, and the reflector 71 is also adjustable to effect arrangement of their relative positions so that heat reflected by the reflector 71 is not focused back on to the lamp filament. A removable perforated plate inserted in guides 96 on the box 57 assists in this adjustment. The light beam is interrupted during the change of transparency by two recessed shutters moved vertically in guides 81 by a. rock shaft 87 operated by a lever 93 actuated by a cam arranged alongside the cam which rotates the wheel 31. An oil reservoir is provided having pipes leading to the bearings &c.
en
GB-1325234-A
GB-3493571-A
GB
A
A
null
1971-07-26
null
G11B15/43
null
Tape transport control system
en
1325234 Automatic rectroactive control EX-CELL-O CORP 26 July 1971 [28 Oct 1970] 34935/71 Heading G3R The speed of a tape storage reel, from which tape is transferred upon demand, is controlled by comparing a speed signal from the real drive means with a signal dependent on the demand to provide a control signal that switches the reel drive means between fully 'on' and fully 'off' conditions. A speed signal from tachometer 26, coupled to the reel drive motor 25a, and a tape demand signal from potentiometer 20, connected directly, or through linkages, to a dancer wheel (16) Fig.2 (not shown), which detects the tension in a tape loop, are fed to a comparator and operational amplifier 30, whose output is fed via a "dead zone" trigger 31, the threshold levels of which are determined by Zener diodes Z 1 Z 2 , to switching power amplifiers 32, that switch the motor 25a between the 'fully on' condition and the 'fully off' condition, where the drive means coasts, so as to maintain balance between tape supply and demand. The tachometer signal may be 1 volt per 200 rpm and the potentiometer signal 1 volt per 10 degrees of rotation. The above reel speed control system may be used in a system for feeding tape especially paper tape from a single reel e.g. to a reader, or from reel to reel, having an intermediate reader driven by a reluctance type stepping motor, each reel having its own control system.
en
GB-416476-A
GB-3498832-A
GB
A
A
null
1932-12-09
null
C08G8/28
null
Process for the production of oil-soluble resins
en
Fusible soluble resins are prepared by condensing a phenol or a cycloketone with a carbonyl containing body in the presence of a terpene derivative. Other substances such as polyhydric alcohol - polybasic acid resins, coumarone resins, pitches, fats, oils, waxes, natural resins or ester gums may also be present and the product, if acid, may be esterified. Oxides, hydroxides, carbonates or fatty acid salts of zinc, calcium, lead, cobalt, p manganese and alkali metals may be present as catalysts. Suitable phenols include phenol, resorcinol, naphthols and substituted phenols, preferably p-substituted phenols such as cresols, xylenols, amylphenols, benzylphenols and phenylphenols or mixtures thereof. Suitable carboxyl containing bodies include formaldehyde and its polymers. Numerous examples illustrate the invention. The Specification as open to inspection under Sect. 91 also describes in general the production of oil soluble and fusible synthetic resins by preparing them in the presence of or reacting them with a hydroaromatic compound. This subject-matter does not appear in the Specification as accepted.
en
GB-832120-A
GB-3502557-A
GB
A
A
null
1957-11-11
null
C03B7/02
null
Improvements in or relating to controlling the flow of molten glass through a furnace forehearth
en
832,120. Delivering molten glass. OWENSILLINOIS GLASS CO. Nov. 11, 1957 [Nov. 9, 1956], No. 35025/57. Class 56. In a forehearth having a channel through which molten glass is conveyed from a furnace to a mould-charge forming apparatus, a movable flow control element is disposed in the channel between the furnace and the forming apparatus and is moved by operating means which are actuated by means responsive to the level of molten glass in the channel in order to maintain a constant predetermined level of molten glass in the channel. As shown a horizontal forehearth 10, Fig. 1, is provided with a channel 11 through which molten glass 12 flows to a conventional gob feeder. The depth of glass in the forehearth and its rate of flow are controlled by a skimmer block 20 which extends downwards into the channel 11. The skimmer block 20 is raised and lowered by a piston motor 22 to which the block is connected by a horizontal lever 23 and screw-threaded telescopic connections. A vertically disposed probe 40, Fig. 3, extends downwards through a hole in the forehearth roof and carries at its lower end a platinum electrode 41 which makes electrical contact with the glass 12. The probe is periodically moved up and down by a motor 44, a rocker bar 411 and link connections 55 and 40c between paralell bars 42-43, the arrangement ensuring that the probe 40 is held vertical during its movements. Cooling fluid may be circulated through the probe. Temperature regulating devices 125 are provided to maintain the temperature of the molten metal in the forehearth at a constant level. The motor 44 not only controls the movement of the probe but also the operation of a pen driving motor of a recording instrument. When the electrode 41 makes contact with the glass the motor 44 is stopped momentarily and the pen driving motor is rotated to move the pen to a position corresponding to the level of the glass. Thus the position of the pen driving motor and its shaft depends upon the glass level. The electrical circuits are shown in Fig. 9. The motor 44 is two winding : application of power between points 2-4 drives the probe downward, and between points 2 and 5 drives the probe upward. Safety switch 151 opens by a cam when the probe reaches an extreme low position, and a similar uplimit safety switch 152 is also provided. Power is supplied from mains a and b. Voltage is supplied through a transformer T having its primary connected across a and b. The transformer T, rectifier tube 130 and condenser 131 constitute a full wave filtered power supply furnishing D.C. voltage for operating the rest of the electronic control unit, which includes relays R1, R2 and a thyratron 132. The contact arm 134 of a potentiometer 133 has a mechanical driving connection 135 with the motor 44 or the probe operated by it, the contact arm 134 oscillating about its pivot with the movement of the motor. The level of the glass in the forehearth is recorded by a recorder 136 operated under the control of motor 44 and potentiometer 133. This recorder includes a pen driving motor 137 and a clockwork operated chart driving motor 138. When the probe 41 touches the molten glass 12 there is a low resistance between the probe and the ground. As soon as the upward motion breaks contact the voltage across resistor 143 supplies a negative bias to the thyratron through resistors 147 and 146. Relay R2 is energised, its' cirucit being closed by contact 148 and contact bar 149, thyratron 132 and up limit switch 150. This limit switch opens on the upward stroke before the extreme limit switch 152 would open. Relay R1 is de-energised at the same time. As switch 150 opens the thyratron is cut off and breaks the circuit for relay R2. Contact bar 159 of relay R2 completes a circuit through lead 160 to point 4 of motor 44. The motor is reversed, probe 41 is driven downwards and limit switch 150 closes, the negative bias on the thyratron preventing energising of the relays R1 and R2. When the probe touches the hot glass the bias to the thyratron is reduced because the resistance between the probe and ground is lower than that of resistor 147. The thyratron conducts, energises relay R1 and charges condenser 161, and the contact bar 162 completes a circuit for relay R2 which operates so that the contact bar 154 opens the circuit of relay R1. Operation of R2 de-energises the downside of motor 44. The charge condenser 161 keeps R1 closed for a brief time, and as soon as this charge is dissipated R1 is de-energised. During the period that the circuit for R1 remains closed, motor 44 is stopped owing to contact bar 158 opening and the pen drive motor 137 is energised, the pen moving to a position corresponding to that of the arm 134 of the potentiometer, that is, to a position corresponding to the level of the glass at the probe tip. When relay R1 opens, contact bar 158 completes the circuit for the motor 44 to move the probe upwards and the cycle repeats. The automatic means by which the operation of the piston motor 22 is controlled by the movement of the pen drive shaft includes an air line control mechanism of known construction.
en
GB-840300-A
GB-3512858-A
GB
A
A
null
1958-11-01
null
G10K1/062
MELTON HARRY JACK
Improvements in and relating to magneto bells
en
840,300. Bells. ERICSSON TELEPHONES Ltd. Nov. 1, 1958, No. 35128/58. Class 13. In a magneto bell in which two electromagnets 1 and a permanent magnet 10 are secured by means of a yoke member 5 to form an E-shaped construction, on the free end of the middle limb of which a substantially flat armature 15 is pivoted by a cylindrical pin 14 passing through the limb and the armature, the pin being retained in position by a clip 17, the permanent magnet 10 forms part only of the middle limb. One end of the core 2 of each electromagnet 1 is formed into a circular polepiece 4 and the other end, which is threaded, passes through a hole in the yoke 5 and is retained by a nut 6. The yoke 5 includes a flat rectangular projecting arm 7 provided with two slotted holes which accommodate two brass screws 9. The screws 9 pass through holes in the channel-shaped member 12 and screw into tapped holes in the long limb 19 of a hook-shaped member 11 of mild steel strip, the member 12 clamping the rectangular permanent magnet 10 between the arm 7 and the limb 19. The hooked end 13 of the member 11 has a circular hole in each limb 19 and 20 to accommodate the cylindrical pin 14 on which the armature 15 is pivoted, each ear 27 of the armature 15 having a non-magnetic bush 16 through which the pin 14 passes. The pin 14 has a circumferential slot at each end which co-operates with the corresponding bifurcated end of the U-shaped clip 17. The central portion 21 of the hooked end 13 of member 11 is bent to provide a camber the two plane faces of which are inclined towards the polepieces 4, and the positions of screws 9 in the slotted holes are adjusted so that the spacing of the armature 15 from the polepieces 4 is such that physical contact between the armature 15 and the cambered face of member 11 is prevented when the armature 15 is tilted to co-operate with either of the polepieces 4. A thin resilient rod 25 is welded to the free end of the projection 23, fastened to one free end of the clip 17, so as to be substantially parallel to the striker 18 mounted on the armature 15. The free end of the rod 25 is placed within a selected one of a number of slots 26 provided in a flat rectangular member 24, secured to the yoke 5 by nuts 6, so as to bias the armature 15 towards one or the other of the polepieces 4. The U-shaped clip 17 may be replaced by two circlips.
en
GB-884840-A
GB-3515259-A
GB
A
A
null
1959-10-16
null
G03C7/388
null
The production of photographic silver halide emulsions
en
884,840. Photographic silver halide emulsions. AGFA A.G. Oct. 16, 1959 [Oct. 16, 1958], No. 35152/59. Class 98(2). Photographic emulsions are prepared by precipitating an aqueous gelatine silver halide dispersion by means of a water-soluble polystyrene sulphonic acid or salt thereof at a pH of 6 or less, separating the coagulum and redispersing it in an aqueous liquid. The polystyrene compound may first be added to the silver halide dispersion, or included in one of the solutions from which the dispersion is formed, and then the pH adjusted to 6 or below. Alternatively, the pH of the dispersion may be adjusted before the polystyrene compound is added. The flocculation is assisted by the presence of heavy metal salts such as the chlorides or bromides of cadmium or copper. The redispersion in water may be effected by adjusting the pH to between 6 and 10 and more gelatine or other colloid can be added to the resulting emulsion. The quantity of polystyrene compound used may be more than is necessary to effect precipitation so that it replaces some of the gelatin as the colloid binder. The usual adjuvants including colour couplers may be added to the emulsions before coating; or the colour coupler may be incorporated before precipitation with the polystyrene compound. Specifications 648,472 and 651,318 are referred to.
en
GB-1067429-A
GB-3535464-A
GB
A
A
7309-12-05
1964-08-28
null
B65H57/00
null
Improvements in or relating to thread guides of quick traverse winding devices
en
1,067,429. Winding bobbins. K. A. MULLERS. Aug. 28, 1964 [Sept. 11, 1963], No. 35354/64. Headings DID and D1J. To prevent, on thread breakage, the possibility of the thread end being wrapped around the spindle of bobbin 15, there is provided in front of the cross-winding device-for example a cam cylinder or split drum-a plate 17 having a thread guide aperture 18, a thread insertion slot 21, and catch plates 22, 23 having notches 24, 25 which catch hold of the broken thread ends and ensure that they are wound on to the centre of the bobbin.
en
GB-1192806-A
GB-3542867-A
GB
A
A
null
1967-08-02
null
G05D23/22
null
Methods of and Apparatus for Temperature Control
en
1,192,806. Automatic temperature control systems. SERVOMEX CONTROLS Ltd. and A.J. BORER. June 24, 1968 [Aug. 2, 1967], No.35428/67. Heading G3R. In a method of controlling the temperature of a region, a mass of known thermal properties is controllably heated or cooled and the temperature difference between the mass and the region is determined which difference controls the temperature of the region which is independently heated or cooled to reduce the temperature difference towards zero. Alternatively the region may be initially brought to a determined temperature, and the mass heated or cooled until the determined temperature is reached. A circulatory air oven 1 has an air heater 2 connectable by a switch SW1a, b through lines 5, 6 to a controller (not shown) which maintains the oven 1 at a determined temperature. Mounted within the oven 1 is a lagged enclosure 9 with a heater 8 connectable over a switch SW2a, b to a differential amplifier A1 and a supply 11, and a mass 7, in the form of a one inch metal cube, attached to a junction 12 of a thermocouple, the other junction 13 of which is in the oven at a suitable point. The thermocouple is connectable through a switch SW3a, b to the input of amplifier A1 or a pre-amplifier A2 connected to an amplifier A3, the output of which is taken through switch SW1a. With the switches in the position shown, oven 1 may be brought and maintained to a determined temperature, say 200‹ C. and amplifier A1 will supply power to heater 8 to bring it to the temperature sensed by thermocouple element 13. With the switches reversed the mass may then be arranged to increase at a determined rate e.g. 4‹C. per minute, hence the oven temperature will follow this until another determined temperature e.g. 400‹ C. is reached. The switches will then be reverted to the position shown when the oven temperature will be maintained at 400‹ C. The oven is stated to have applications in gas chromatography, thermogravimetric analysis, and differential thermal analysis. The current supply and amplifiers may be replaced by any suitable arrangement. The mass may be a pure metal, an alloy, or a non-metallic substance in the solid liquid or gaseous state. The switches may be operated automatically.
en
GB-470060-A
GB-3575236-A
GB
A
A
null
1936-12-30
null
H03H7/42
null
Improvements in or relating to goniometer navigation aiding and like radio receiving installations
en
470,060. Directive wireless signalling. SOC. FRANCAISE RADIO-ELECTRIQUE. Dec. 30, 1936, No. 35752. Convention date, Dec. 30, 1935. [Class 40 (v)] A direct-reading radiogoniometer comprises a vertical aerial A, Fig. 1, and two fixed frames C, C1, set at right-angles, the signal voltage from the latter being periodically reversed, or suppressed, by a pair of diodes V1, V2, shunted across the tuned circuits CV1, CV2. The diodes are energized in phase-quadrature at U, U1 from a two-phase alternator, and give the same effect as if the frames were rotating. After passing through amplifiers E1, E2, the frame voltages are combined with the pick-up from the aerial A in a common circuit CV3, which is coupled at G to further amplifiers feeding a phase indicator. The effect of the diodes is to damp the circuits CV1, CV2 alternately, and thus cut down or suppress the energy passed to the amplifiers through first one and then the other of the two coupling condensers C2. Fig. 2 shows an alternative method of coupling the aerials to the common combining circuit, and of reversing or suppressing the frame voltages so as to give the effect of constant rotation. A pair of diodes V1, V1 and V2, V2 are inserted in series with each of the two transformer secondaries, the two sections of which are wound in opposite directions. One or other of the diodes is put out of action as its cathode is thrown positive by the low-frequency voltage developed across the windings U1, U2. Both frames are coupled to the same tuned circuit CV3. In another modification, each of the transformers has five windings, one of these forming part of the common tuned circuit.
en
GB-976931-A
GB-3577160-A
GB
A
A
null
1960-10-18
null
H02K3/22
null
An arrangement for the cooling of rotor coils of electric machines
en
976,931. Cooling dynamo-electric machines. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. Oct. 18, 1960 [Oct. 19, 1959], No. 35771/60. Heading H2A. In an alternator rotor having concentrically wound coils comprising hollow conductors 5, 6, 7 (Fig. 2) in the rotor slots and solid conductor cross-connectors 2, 8 with spacers between adjacent conductors, straight passages 10 are provided for the passage of cooling medium. These passages 10, which are parallel to the rotor axis, are formed by aligned apertures in the cross-connectors and spacers and are arranged to correspond with the hollow conductors 5, 6, 7 extending through the rotor slots. A passage 10 is also provided through the cross-connector 8 of the smallest coil which does not correspond with a hollow conductor but terminates in a slot 14 in the rotor core which communicates with the rotor stator air gap.
en
GB-489701-A
GB-3585636-A
GB
A
A
null
1936-12-31
null
G03B33/08
null
Method and device for recording and projecting images in colour kinematography
en
489,701. Colour kinematography. DAXBEK, M. Dec. 31, 1936, No. 35856. Convention date, Jan. 29. Drawings to Specification. [Class 97 (i)] Two colour-record images are taken upon or projected from films within the normal depth of a standard image space by the adaptation of standard apparatus, the exposure aperture being reduced to half the usual dimensions by a mask, the film being fed at the rate of 24 standard image spaces, per sec., by a Maltese cross having eight slots, and a disc shutter being provided having two opaque portions and two colour-filter portions and rotated at the rate of one revolution per standard image space.
en
GB-775267-A
GB-3590155-A
GB
A
A
null
1955-12-14
null
H01R12/50
WILDY RONALD GORDON
Improvements in or relating to the production of tags or terminals on articles comprising an electrically conductive pattern on an insulating support
en
775,267. Terminal boards; two-part couplings. MULLARD RADIO VALVE CO., Ltd. Dec. 14, 1955, No. 35901/55. Class 38 (1). Terminal tags are provided on a panel carrying a printed circuit by arranging the circuit to form a plurality of tags adjacent an edge of the panel and then removing the edge portion to leave the tags projecting from the panel whereupon they may be used as soldering tags or folded over the edge of the panel to form plug contacts. One method of removing the edge portion of the panel is shown in Fig. 3. A V- shaped groove 1 is cut in the undersurface and the unwanted portion 2B snapped off and peeled away from the printed circuit to leave the tags 3 as shown in Fig. 5.
en
GB-1253993-A
GB-3596068-A
GB
A
A
null
1968-07-27
null
F01B13/06
THOMA OSWALD H
Improvements in or relating to hydraulic pumps or motors
en
1,253,993. Hydraulic reciprocating-piston pumps and motors. HYDRAULIC-DRIVE A.G. July 1, 1969 [July 27, 1968(2)], Nos. 35958/68 and 35960/68. Heading F1A. In a pump, or motor, a rotary member 20 has radial bosses 35 defining cylinders 36 for spring-loaded pistons 40, a slipper 45 for each piston having a socket engaging a part-spherical element 44 and abutting a cam ring 47, which is pivotally supported by a pin 48 so that its eccentricity can be varied by a rod 51. The working fluid e.g. oil, is supplied to and discharged from the cylinders through passages 29, 30 in a casing 10, passages 27, 28, 31, 32 in a fixed pintle 25 supporting the member 20, and passages 38 in said member. Lubrication of the slippers is effected by a proportion of the working fluid flowing through passages 60, 61 into distribution grooves in the outer faces adjacent the cam ring, Figs.3 and 4 (not shown). A power input, or output, shaft 13 carries a pulley 14 and is coupled to the member 20 by a flexible member 17. Shoulders 75, 76 prevent lateral movement of the slippers and thereby obviate appreciable axial-displacement of the member 20 along the pintle.
en
GB-448675-A
GB-3596235-A
GB
A
A
null
1935-12-30
null
F26B15/00
null
Improvements in processes and plants for the artificial drying of ceramic products, and in particular of tiles and bricks
en
448,675. Drying bricks and the like. MONNIER, J. B., 2, Route de Provence, Gap, Hautes-Alpes, France. Dec. 30, 1935, No. 35962. Convention date, Jan. 17. [Class 34 (ii)] [See also Group X] Ceramic products, particularly bricks or tiles made of clay of small capillarity and high shrinkage, are dried in two phases ; in the first, they are dried slowly and progressively by the intermittent circulation of hot air ; in the second, they are dried intensely by the continuous circulation of hot air. As shown, the plant. comprises two tunnels 1, 2 arranged in line, with a shorter, final, drying tunnel 6 between them. Goods to be dried are entered, on wagons 3, into the tunnels 1, 2 by doors 4, 5 and advanced intermittently towards the tunnel 6, from which the dried goods are removed by doors 19, 19<1>. A fan 7 draws air through an adjustable opening 8 and forces it through a heater 9, the heated air circulating by either of the paths indicated by the arrows 18, 18<1> according to the setting of the dampers 12, 13. The latter are reversed periodically, so that the heated air always passes through the tunnel 6 and alternately through the tunnel 1 or 2. Hot air from the cooling zone of the plant, or from a furnace, may be drawn in by the fan 7. Moist air may be discharged through dampers 17, 171.
en
GB-1593532-A
GB-3600877-A
GB
A
A
2731-03-23
1977-08-31
null
G02F1/17
null
Solid state function device
en
null
null
GB-457148-A
GB-3608135-A
GB
A
A
null
1935-12-31
null
B60K17/04
null
Improvements in and connected with motor vehicle gearing
en
457,148. Motor vehicles. DAIMLER - BENZ AKT. - GES., Untert³rkheim, Stuttgart, Germany. Dec. 31, 1935, No. 36081. Convention date, April 15. [Classes 79 (ii), 79 (iii), and 79 (iv)] Motor vehicle gearing comprises a driving shaft m disposed beneath the road wheel centres and axle shafts 11, l<2>, and change - speed gearing arranged parallel to the axle shafts and so as to bridge the difference in level between the driving shaft and the axleshafts. In the construction shown, the driving shaft m drives the first shaft p of the change - speed gear through bevel-gearing m<2>, m<3>. The second shaft q of the changespeed gear is between the first shaft p and the axle-shafts l<1>, l<2> and drives the latter through spur gears rl, r<2> and universal joints o<1>, o<2>. A differential gear may be provided in the wheel r<2>. The gears are housed in a gear-box g divided by partitions into three compartments, the outer compartments enclosing the gear-changing wheels p<1>, p<2>. A reverse gear is provided if desired. The gear-box g is mounted, preferably through rubber sleeves, on transverse frame members a<3>, a<4>. The invention is shown in Fig. 3 in connection with the axle-structure and frame forming the subject of Specification 457,147, the gear-box being behind the rear seat n. Relative lateral movement of the gear-box and the axle-structure c‹ is prevented by the engagement of rubber rollers k<2> on the axle with a vertical arcuate rib i formed on the gear-box. The frame longitudinals a<2> pass between the driving shaft m and the axle-shafts.
en
GB-1403815-A
GB-3608573-A
GB
A
A
null
1973-07-30
null
B60N2/10
null
Vehicle seat
en
1403815 Adjustable vehicle seats ISRINGHAUSEN Gebr 30 July 1973 [3 Aug 1972] 36085/73 Heading A4J One side of each end of a seat frame 12 which is adjustable in height and inclination is mounted on a base through a toothed segment 7 pivotally connected to the seat frame by a spindle 10, fixed to a tube 8 rotatably mounted in the base frame and biased towards a position in which the seat frame is raised by a spring 14, a pin 5 on one end of a catch member 2 pivotally connected to the base frame being spring biased into engagement with the segment to hold the seat frame in the adjusted position. The other side of each end of the seat frame may be connected to the base frame by a lever 9.
en
GB-801547-A
GB-3619555-A
GB
A
A
null
1955-12-16
null
B22D11/06
null
Improvements relating to continuous casting machines
en
801,547. Automatic fluid level control systems. PROPERZI, I. Dec. 16, 1955 [Dec. 31, 1954], No. 36195/55. Class 38 (4). In a system for automatically controlling the level of the surface of molten metal in a continuous casting machine the mould is formed by a channel round the circumference of a rotating wheel and a strip of material wrapped round a portion of the circumference, and changes in temperature of liquid sprayed on the outside of the strip are utilized to control the speed of the wheel through an electric control system. In Fig. 2 a continuous casting mould, e.g. for aluminium bar, is formed between a channel round the circumference of a rotating wheel 12 and a strip 32 which meets the wheel tangentially and encloses a portion of the circumference. The molten metal is supplied through a nozzle 31 and the wheel is rotated at such a speed that the level of the molten metal remains approximately at the point where strip 32 meets wheel 12. The level of molten metal is detected by spraying fluid from a conduit 33 on to the outside of strip 31 and arranging two thermocouples 20, 21 or alternatively two temperature-variable resistors so that one of them is associated with boiling fluid and the other is not when the level is correct. Deviation of the level from the desired position affects the relative temperatures of the thermocouples or temperaturevariable resistors and a potentiometer (not shown) is arranged to be set automatically to a corresponding position. This potentiometer is associated with limit switches which when operated start an electric motor to maintain the level of molten metal between limits by adjusting a variable-speed gear in the drive to wheel 12. A clutch is provided between the motor and variable-speed gear to permit manual adjustment of the latter.
en
GB-1006278-A
GB-3623063-A
GB
A
A
null
1963-09-13
null
F16J15/32
null
Improvements in and relating to sealing devices for axially movable members
en
1,006,278. Seals; piston packing; valves. HOERBIGER VENTILWERKE A.G. Sept. 13, 1963 [Sept. 25, 1962], No. 36230/63. Headings F2B, F2T and F2V. A device for sealing a spool valve comprises an elastic sealing ring 18 which is of T crosssection (Fig. 1) or solid-triangular crosssection (Fig. 3) and fixed in position by supporting elements 19 mounted axially one each side of the ring. As shown, the supporting elements 19, which are of tubular form and provided with openings communicable as set by the spool valves with the valve ports 3, 4, 5, 6 in the valve casing, are arranged inside the valve casing and disposed alternately with sealing rings 18 which are adapted to engage with their free edges the valve spool. The whole assembly of elements and sealing rings is secured in position between end glands 11, 12; if desired, the sealing rings in the glands themselves may be of 0-type. In an alternative form, the T-shaped sealing rings are mounted on the piston with the legs directed outwardly.
en
GB-772137-A
GB-3632255-A
GB
A
A
null
1955-12-19
null
H01F27/06
null
Improvements in electrical transformers and other cored coils
en
772,137. Transformers and inductors. SKILLMAN & CO. PTY., Ltd., T. S. Dec. 19, 1955 [Dec. 29, 1954], No. 36322/55. Class 38 (2). A clamping and mounting device for transformers or the like having a magnetic core 3 partly surrounding the windings 2 comprises two shells 4, 5, each of which wholly and closely surrounds one end of the core 3, the two shells meeting and overlapping at the middle of the transformer and finally mechanically interlocking with each other. The shells are similar to each other and each comprise an end piece 4 and two side pieces 8 which are at right angles to the end piece 4. The edges 4<SP>1</SP>, 6 of the pieces 4, 8 are bent inwardly at right-angles so that the shell when pushed over the core clamps the laminations thereof together or grips it if it is of a compacted powder construction. The edge of the shell which meets the other shell is formed with a shaped edge such as shown at 9 so that after meeting a corresponding edge and passing over it the corresponding edges finally snap back into the same plane, thereby becoming interlocked with one another. The shells may be stamped from a metal sheet or may be of a moulded plastic construction. Mounting lugs 10-13 are formed integrally with the shells. After assembly the shells may, if desired, be soldered together along the edges marked X.
en
GB-512550-A
GB-3649238-A
GB
A
A
null
1938-12-14
null
C10J3/00
null
Improved wood gas generator
en
512,550. Gas-producers. GROBETY, W. Dec. 14, 1938, No. 36492. Convention date, Dec. 14, 1937. [Class 55 (i)] [Also in Group XI] A gas-producer 1, Fig. 1, has an inner casing or reservoir 5 which tapers at the lower end and encloses a funnel-shaped container 7 fitted with nozzles 12 to serve as the combustion chamber. At starting, the lower part of the outer casing 1 is filled with charcoal through an opening 2, more charcoal is introduced into the container 7 through a cover 10, and finally wood is added. A fan 13 draws a current of air through the container and space 6, and the fuel is ignited near one of the nozzles ; the gas generated is filtered by passage through the charcoal in the outer casing. In a modification, the producer is combined with an oven. The reservoir 14, Fig. 2, surrounds the combustion chamber 15, 16 which is provided with a grate 24. Air is introduced into spaces 17, 18, 23 and passes through apertures 19, 20 into the combustion chamber, and gases escape through a channel 22.
en
GB-1033176-A
GB-3655463-A
GB
A
A
null
1963-09-17
null
B60T13/14
null
Improvements relating to hydraulic braking
en
1,033,176. Hydraulic brakes. BARMER MASCHINENFABRIK A.G. Sept. 17, 1963 [Sept. 19, 1962], No. 36554/63. Heading F2F. In a method of hydraulic braking heavy-load vehicles a brake lever 29 is loaded to produce a control pressure in chamber 32 of a braking pressure governor 27 which pressure acts on a spring-loaded piston 33 to open a valve 9 to permit pressure fluid to flow via ducts 8, 39 from a pressure storage device 7 to a brake cylinder 40. The braking pressure acts via duct 54 on piston 35 integral with piston 33 to oppose the control pressure and close valve 9 so as to regulate the braking pressure according to the control pressure. The control pressure also acts on a piston 49 of a return-flow governor and when the braking lever is released to reduce or eliminate the control pressure the valve 46 opens to permit the braking pressure to be released via duct 25 to a storage container 1. The pressure storage device 7 is fed from the container 1 by a piston pump 3 acting through a non-return valve 5. A storage pressure governor 12 acts to limit the pressure of device 7, a device 21 damping the pressure peaks from the pump 3. Other embodiments of braking pressure governors are described.
en
GB-1143055-A
GB-3667367-A
GB
A
A
null
1967-08-10
null
B21D5/02
null
Improvements in metal benders
en
1,143,055. Angular bending. HAMMERLE A.G. MASCHINENFABRIK. 10 Aug., 1967 [19 Aug., 1966], No. 36673/67. Heading B3E. A bending machine has a work-table and a movable ram, each having a tool-holder on which are mounted several tools, which can be moved from a stand-by to an operative position, the tool-holder associated with the work-table being a movable carriage and being characterized in that a support bar is provided which is pivotable between a stand-by position and an operative position in which it co-operates with one of the tools on the work-table toolholder to form a doubled-over bend in a work-piece, and a means for controlling the support bar mounted in the path of movement of the tool-holder on the work-table. The machine comprises a work-table 1 on which a tool-holder carriage 2 is movable in the direction of the arrows 3. Two bottom dies 6, 7 are mounted on the carriage, their positions being adjustable by wedges 5. A movable ram carries tools 15, 16 and 17 any of which can be brought into the operative position. The support bar 18 has a surface 19 which co-operates with a surface 20 on the die 7, and is keyed to a shaft which is rotatably mounted in the tool-holder. Secured to the ends of the shaft are control arms 21, which as the carriage moves from left to right engage resilient stops 22 which rotate the control arms and lift the surface 19 from the surface 20. Operation.-To form a doubled-over bend in a sheet metal workpiece, the tool 15 is used to form two right-angled bends and then the tool 17 and the die 6 together form the workpiece to the shape shown in Fig. 5. The carriage is moved to bring the die 7 under the ram, the control arms 21 lifting the support bar 18. The partially formed double-bend is placed under the support bar, as shown in Fig. 6, and the tool 16 is brought to the operative position. As the tool 16 descends it engages the upper surface of the workpiece and acts through the workpiece on the bar 18 and hence on the double-bend. The resilient stops 22 permit the downward movement of the free ends of the control arms 21.
en
GB-1159764-A
GB-3679067-A
GB
A
A
null
1967-08-10
null
H01M4/38
null
Fuel Cells and Electrodes therefor.
en
1,159,764. Rechargeable fuel cell. GENERAL MOTORS CORP. 10 Aug., 1967 [7 Nov., 1966], No. 36790/67. Heading H1B. A fuel cell comprises an electrode assembly in which: a reservoir holds a liquid reactant and an electrolyte electrolytically dissociable into the liquid reactant and a gaseous reactant; an electrically conductive penetrable element in a wall of the reservoir and in contact with the cell electrolyte provides communication between the inside and outside of the reservoir; a path admits electrolyte to the reservoir during discharge, so permitting the liquid reactant to remain in contact with the penetrable element; an electrically conducting conduit extends from below the electrolyte level in the reservoir to a point above the cell electrolyte and forms an " air-lift " type pump during recharging, so maintaining a pressure drop across the penetrable element towards the reservoir interior, the conduit being insulated from the reservoir and connected electrically to the electrode generating the gaseous reactant during recharge. In the Li/LiCl/Cl 2 cell illustrated the cell container 1 is of carbon lined with ceramic 16 in a stainless steel casing 2; during discharge Cl 2 is supplied to the annular electrode 11 and Li floats in the molten LiCl against the penetrable element 5 which defines with a stainless steel casing the reservoir 3 which is electrically connected to the outer casing 2; as Li is consumed LiCl enters the reservoir through element 5 or via a capillary. The carbon tube 4 is insulated from the reservoir and cell electrolyte by a ceramic layer 9 and lined with a ceramic layer 6 which is wet by LiCl; during discharge Cl 2 is generated at the exposed base of tube 4 which is connected to the chlorine electrode via carbon container 1 and forms a " gas-lift " pump; the pressure differential across element 5 ensures that Li there formed is retained inside the reservoir. Reference has been directed by the Comptroller to Specification 1,123,133.
en
GB-946465-A
GB-3682560-A
GB
A
A
null
1960-10-26
null
B63B1/24
null
Improvements in water craft having hydrofoils
en
946,465. Hydrofoil vessels. G. PIAZZA. Oct. 26, 1960 [Nov. 16, 1959], No. 36825/60. Heading B7A. An hydrofoil 10 (Fig. 5) is secured to one arm 2 of a lever pivoted at 4 so that the lift acts behind the pivot. The lift is balanced by a spring 7 at the end of the other arm of the lever, with the result that, if the lift increases, the incidence of the hydrofoil is reduced, or, if the lift decreases, the incidence is increased. The hydrofoil may be inclined upwardly, outwardly and forwardly as in Fig. 8, so that as the depth of immersion increases, and the waterline rises from N-N to A-A the centre of lift changes from n to a and the moment arm of the lift is reduced from x to z. Conversely, as the water line falls, the moment arm is increased. Hydrofoil units in the same transverse plane on opposite sides of the craft may be connected together. A water craft may be supported by two or more pairs of hydrfoils (see Figs. 9-12, not shown).
en
GB-1317757-A
GB-3689270-A
GB
A
A
null
1970-07-30
null
F04D29/42
null
Centrifugal pumps
en
1317757 Centrifugal pumps WORTHINGTON CORP 30 July 1970 [31 July 1969] 36892/70 Heading F1C A single-inlet centrifugal pump of the type in which change of direction is imparted to fluid before it reaches the impeller comprises means adapted to effect a distribution of streams of sucked fluid along a substantially circumferential or spiral path with respect to the impeller axis, to effect a uniform inward deviation of the streams radially towards the axis and subsequently gradually and continuously to withdraw the fluid streams and convey them to the impeller in the direction of the axis in such manner that tangential velocity components are removed and a substantially uniform distribution of the axial velocity of the streams is effected. Liquid enters the pump via a volute 10 having a tangential inlet (not shown), the cross-sectional area of the volute being reduced progressively in the direction of rotation of the liquid about the volute axis by means of a reduction of either the radial depth of the volute or, as shown, the axial dimension. The liquid is progressively withdrawn from the volute through at least one row of blading 14 which produces a radially inward and axial deflection. As shown, the impeller (not shown) may be preceded by an inducer rotor 21. A chamber 15, exhausted via a port 17, may be provided for collecting gas and vapour from the liquid via an annular gap 16 between two castings 18, 19.
en
GB-1063835-A
GB-3692764-A
GB
A
A
null
1964-09-09
null
H01B17/14
null
Improvements in and relating to electric fencing
en
1,063,835. Electrified fencing. R. R. S. JONES. Sept. 7, 1965 [Sept. 9, 1964; Oct. 29, 1964], Nos. 36927/64 and 44263/64. Heading E1B. An angle iron post 10 having an insulated pigtail 24 for an electrified fence wire (not shown) carries a rod 18 resiliently mounted thereon through an insulating bush 17. Should cattle avoid the wire and push against the post the rod 18 is deflected to contact the electrified wire or the pigtail 24 and thus itself becomes electrified. An angle iron foot plate 12 is provided. The inner end of the pigtail wire is bent to hairpin shape and sprung within an insulating sleeve in a flattened tube 19. In modifications the upper end of the rod 18 passes through an inclined loop formed at the end of the pigtail wire and engages it through an insulating cap on the rod or loop. On deflection the rod itself engages the loop and becomes electrified.
en
GB-944551-A
GB-3705462-A
GB
A
A
null
1962-10-01
null
A01K31/16
null
Improvements in egg collecting apparatus
en
944,551. Poultry houses; collecting eggs. J. KUHLMANN. Oct. 1, 1962 [Oct. 7, 1961; Feb. 6, 1962], No. 37054/62. Heading A1M. Eggs are collected from nest boxes 10 by means of a conveyer belt 5 which is made of wire mesh and forms the floor of the boxes, litter being placed on the belt at A to provide nests and the belt being moved intermittently so that the eggs are conveyed to a collecting point B. The part 8 of the belt is left free of nest boxes and the litter falls through the wire mesh into a container 9 from which it may be returned to the point A e.g. by a screw conveyer provided with drying units. The belt 5 may also be formed of rubber or synthetic resin in which case a suction device is arranged above the part 8 of the belt to remove the litter and return it to the point A. Means for vibrating the part 8 of the belt may also be provided.
en
GB-1094352-A
GB-3707564-A
GB
A
A
null
1964-09-10
null
A47C27/14
null
A curative device in the form of a mattress mat
en
1,094,352. Mattresses &c. E. BERTHELSEN. Sept. 6, 1965 [Sept. 10, 1964], No. 37075/64. Headings A4M and A4S. A curative device in the form of a bed underlay consists of a dry layer of plastic foam material such as polyurethane or nylon of high porosity and thickness of “ to 1 inch and is said to relieve discomfort from rheumatism and affiliated diseases.
en
GB-1591205-A
GB-3710077-A
GB
A
A
null
1977-09-06
null
A61M60/562
null
Hemodialysis systems
en
null
null
GB-902092-A
GB-3732657-A
GB
A
A
null
1957-11-29
null
B60S1/48
KERR ARTHUR EDWIN
Improvements in windscreen cleaners
en
902,092. Fluid actuation of switches. TRICOFOLBERTH Ltd. Dec. 1, 1958 [Nov. 29, 1957], No. 37326/57. Class 38 (5). [Also in Group XXIII] A co-ordinating device for causing operation of the windscreen wiper when a windscreen washer is operated comprises a casing 2 through which the washing liquid flows via nipples 6, 8 in its passage from a pump to a washer nozzle, and which contains a piston 10 movable by the pressure of the washing liquid, against the action of a spring 22, to actuate a switch comprising a metal ring 16 on the piston stem 12 adapted to complete the circuit between contacts 18 to energize the wiper motor. During the movement of the piston 10 by the pressure of washing liquid air is discharged from the casing 2 through a non-return valve comprising a spring-pressed valve disc 26. When the liquid discharge by the washer is discontinued the piston 10 is returned by the spring 22 at a speed controlled by the rate of entry of air into the casing 2 through an adjustable needle valve (not shown). Thus, the wiper is not stopped until some little time after the operation of the washer has ceased. The washer pump may be replaced by a device operated by compressed-air as described in Specification 866,218. As a further alternative, the nipples 6, 8 may be replaced by a single nipple connected by a hose to a point in a path for liquid from the supply to the nozzle.
en
GB-1241565-A
GB-3732668-A
GB
A
A
null
1968-08-05
null
F16H47/07
RITZ ROLF
Hydrodynamic gear, more particularly for rail vehicles
en
1,241,565. Hydromechanical transmissions. VOITH GETRIEBE KG. 5 Aug., 1968 [5 Aug., 1967], No. 37326/68. Heading F2C. In a hydromechanical transmission in which a number of different arrangements can be obtained from standard units, a mechanical gear input 6, 9 is coupled to a pair of hydraulic torque converters I, II, of different capacities, and either of which can be connected to the transmission output. The main external gear casing 5 is made symmetrical about the central plane 8 of the input gear unit and is formed with identical side bores 3, 3<SP>1</SP> so that either of them can accommodate the input shaft 1. The hydraulic converters which have common primary and secondary shafts 10, 11, are mounted in a common casing 12, the ends of which have bores 19, 20 of the same size so that either can accommodate the output shaft 18, while spigots 15, 16 can be inserted in either of identical bores 13, 14 in the external casing 5 to allow output drive in either direction.
en
GB-909940-A
GB-3748258-A
GB
A
A
null
1958-11-21
null
A24D3/02
null
Improvements in or relating to crimped tow
en
909,940. Crimping thermoplastic filaments. EASTMAN KODAK CO. Nov. 21, 1958 [Nov. 27, 1957 (2); Aug. 28, 1958], No. 37482/58. Class 15(2). [Also in Group IX] Uniformly crimped tow is made by spinning continuous thermoplasfic filaments of a denier not greater than 16 per filament, gathering the filaments together to form a band of substantially uniform width and thickness and a total denier not greater than 160,000, imparting to the band a crimp not less than 8 crimps per inch, and applying to the filaments at a stage before the crimping operation a non-toxic lubricant comprising an emulsion containing at least one sorbitan compound. Suitable sorbitan compounds are the monolaurate, mono oleate, monopalmitate, and polyoxyethylene sorbitan mono-oleate or laurate; the emulsion is an aqueous one with white mineral oil or polyoxyethylene castor-oil derivative applied by a ceramic or metal roller which may be roughened or provided with a groove in which the filaments travel, and the amount applied may be controlled by a doctor-blade, by arranging the roller to deflect the path of the filaments through an arc which is varied as required, or by varying the speed of the roller, which may rotate oppositely to the direction of travel of the filaments. The emulsion may also be applied by a wick or surface to which the supply may be metered.
en
GB-1300515-A
GB-3750971-A
GB
A
A
null
1971-08-10
null
C04B28/02
null
Agent for the production of water-impermeable concrete and cement mortar products
en
1300515 Composition comprising a sulphonated MF resin and a metal stearate SUDDEUTSCHE KALKSTICKSTOFF-WERKE AG 10 Aug 1971 [7 Oct 1970] 37509/71 Heading C3R [Also in Division Cl] An agent for rendering concrete and cement water-impermeable comprises 50-80 wt. per cent of a sulphonic acid group-containing melamine-formaldehyde resin having a viscosity of 5-300 cP in 20% aqueous solution, and 50-20 wt. per cent complementally of a metal stearate. Other, known, sealing agents may also be present, and up to 50 wt. per cent of the stearate may be replaced by an aluminate. In the examples test prisms are prepared from Portland cement containing a commercial sulphonated MF resin and Zn stearate or a mixture of Ca stearate, KAlO 2 , Ca(OH) 2 , KOH and NaOH, and a cement paste is prepared containing a similar resin and commercial Zn stearate.
en
GB-1586240-A
GB-3752177-A
GB
A
A
null
1977-09-08
null
C07K16/00
null
Tissue specific protein and process for preparing same
en
null
null
GB-855099-A
GB-3756657-A
GB
A
A
9328-10-02
1957-12-03
null
B65G25/00
null
Handling device, more particularly adapted for moving articles inside an enclosure, such as a furnace
en
855,099. Walking-beam conveyers for furnaces. HEURTEY & CIE. Dec. 3, 1957 [Dec. 7, 1956], No. 37566/57. Class 51 (2). [Also in Group XXX] Tubes and other articles of substantially circular cross-section are transported by a conveyer having notched beams which is driven by mechanism capable of being adjusted during operation for the purpose of effecting rotation without conveyance. The conveyer consists of fixed beams 1 and one or more walking beams 2. The beams 2 rest on rollers 8 supported on the upper ends 7 of connecting rods 3. Each part 7 is connected pivotally to one end of a jack device 10, the other end of which is connected pivotally to a bracket 11 depending from a walking beam 2. By actuating the jack 10 from a remote position, the position of the beam 2 can be changed with respect to the rod 3 during the operation of the conveyer.
en