import cadquery as cq
w0=cq.Workplane('YZ',origin=(22,0,0))
w1=cq.Workplane('XY',origin=(0,0,-8))
r=w0.sketch().arc((-26,19),(-16,35),(-26,50)).close().assemble().reset().face(w0.sketch().segment((-3,-50),(26,-50)).segment((26,-41)).segment((-3,-41)).segment((-3,-47)).arc((-2,-47),(-3,-48)).close().assemble()).finalize().extrude(-44).union(w1.workplane(offset=38/2).moveTo(9,-4).cylinder(38,12))