Abstract: An apparatus and method for straightening the curvature of a hardened metal workpiece. A relatively sharp chisel point peen is driven by an air hammer to repeatedly strike the surface of the workpiece held on a rigid support table until the workpiece is straightened. The force or frequency of the peen chisel strikes can be infinitely varied by controlling the amount of air pressure delivered to the air hammer. Measurement of the workpiece is accomplished on the worktable by extending the workpiece between a pair of V-blocks and beneath a plurality of dial indicators.

Abstract: A hand-operated hydraulic pump utilized to lift or trim an outboard marine engine. A wobble-action handle connects with a pinion gear which in turn drives a rack on a double-ended piston forming two cylinder chambers on opposite ends thereof. Reciprocal movement of the piston alternately pumps fluid from each cylinder chamber both of which are supplied by a common longitudinal passage in the piston across a pair of check valves located at each end of the piston. The pump housing includes the reservoir, discharge port and needle valve for relieving fluid from the discharge port back to the reservoir.