import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,53))
w1=cq.Workplane('XY',origin=(0,0,88))
r=w0.sketch().arc((6,-33),(12,-25),(16,-33)).arc((16,33),(6,-33)).assemble().finalize().extrude(-153).union(w0.workplane(offset=47/2).moveTo(-84,-12).cylinder(47,9)).union(w1.sketch().segment((-66,-6),(-3,-6)).arc((14,-18),(30,-6)).segment((93,-6)).segment((93,6)).segment((30,6)).arc((14,18),(-3,6)).segment((-66,6)).close().assemble().finalize().extrude(-68))