import cadquery as cq
w0=cq.Workplane('YZ',origin=(-85,0,0))
r=w0.sketch().push([(-19,-6)]).circle(39).push([(-18.5,-29)]).rect(21,22,mode='s').finalize().extrude(-15).union(w0.sketch().push([(31.5,39)]).rect(53,12).push([(15,40)]).circle(2,mode='s').push([(32,39)]).circle(4,mode='s').finalize().extrude(185))