Abstract: A device for varying the displacement of a variable displacement bent axis unit includes a one-piece yoke having a bucket portion adapted to carry a cylinder block kit of the bent axis unit, a trunnion bearing portion for swing control on one side of the bucket portion, and a trunnion portion for fluid porting on the other side of the bucket portion. The bucket portion has a bottom wall, a continuous side wall, and an open top. Inside the yoke is a pair of fluid passages intersecting the interior of the bucket portion and extending separately and entirely within the bottom wall and the side wall before opening onto the trunnion portion for fluid porting.

Abstract: Exercise aids for doing inclined pushups which may be positioned on the top of an elevated surface e.g. a table top. The handle bar of each aid is held in one hand and the person plants the bottom of the feet on the floor and does the pushup. The aid has a handle bar which is inclined at an angle of about 30.degree..+-.5.degree. with respect to the bottom surface of the aid which supports it to permit back and forth push up type motion.