Normally when we post patents, they're late 19th/early 20th century objects for interfacing with vaginas.
This is neither, but we're going to tell you about it anyway.
This is the Apparatus For Facilitating The Birth Of A Child By Centrifugal Force, patented in 1965.
You may be reading this and wondering "Surely this isn't an elaborate centrifuge designed to make the baby fly out? Surely?"
That's exactly what it is (and stop calling us Shirley).