import cadquery as cq
w0=cq.Workplane('YZ',origin=(-2,0,0))
r=w0.workplane(offset=-9/2).moveTo(34,11).cylinder(9,10).union(w0.sketch().arc((-36,-32),(4,-38),(-26,-11)).arc((-43,-16),(-36,-32)).assemble().push([(-15,-29)]).rect(2,24,mode='s').push([(-18,34)]).circle(16).push([(-18,33.5)]).rect(14,11,mode='s').finalize().extrude(13))