import cadquery as cq
w0=cq.Workplane('YZ',origin=(37,0,0))
r=w0.sketch().segment((33,-16),(33,-13)).segment((37,-13)).segment((37,-18)).segment((36,-18)).arc((46,0),(33,-16)).assemble().finalize().extrude(-75).union(w0.sketch().segment((-50,-17),(-14,-17)).segment((-14,3)).arc((-34,6),(-50,19)).close().assemble().finalize().extrude(-5))