import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-37,0))
w1=cq.Workplane('XY',origin=(0,0,-53))
r=w0.sketch().segment((-53,-34),(-14,-57)).arc((52,-64),(-6,-32)).arc((-24,-22),(-35,-3)).close().assemble().finalize().extrude(-33).union(w0.sketch().push([(-29,-73)]).rect(46,54).push([(-28.5,-73)]).rect(25,2,mode='s').push([(-30,-55)]).circle(3,mode='s').finalize().extrude(47)).union(w1.workplane(offset=33/2).moveTo(62,32).cylinder(33,38))