Posted by David (199.60.107.1) on June 27, 2003 at 17:44:20:
Drawing B is a 90 side view of A. The Y shape at the top is a point of reference to illustrate the two parrellel side angles you can't see from tyhis perspective-opened up. The balls, what some have refered to as weights, are actually the part that is held to work the device, like the two illustrations in the center.