import cadquery as cq
w0=cq.Workplane('YZ',origin=(-41,0,0))
r=w0.sketch().arc((-55,-100),(8,-82),(50,-31)).segment((32,-43)).arc((24,-51),(14,-55)).close().assemble().reset().face(w0.sketch().segment((17,100),(55,43)).arc((40,74),(17,100)).assemble()).finalize().extrude(82)