Abstract: The present invention relates to a sharpening device for sharpening a wear edge of a rubber, plastic or polyurethane blade, such as a synthetic squeegee blade used in silk screening printing, comprising a housing with a base and an upper surface having a longitudinal clamp for clamping the blade during the sharpening operation. The sharpening device further comprises a cutting blade or knife which is removably held by a moveable carriage, both of which are located within a housing. The carriage is mounted on a block assembly and, preferably, carries a removable cutter holder. In operation, the carriage travels along the path of the wear edge of the squence blade, and the cutting blade or knife acts to cut off the wear edge of the blade and simultaniously treate a new edge. The cutting blade is mounted in an inclined position, with respect to the horizontal length of the wear edge, so that the upper beveled surface of the cutting blade is substantially parallel to the horizontal plane of the wear edge.

Abstract: A power clamp assembly is provided having a base, a body rotatable on the base with spaced radial shelves of different heights, a hydraulic cylinder with piston in said body relatively rotatable therein, a hollow rod in said piston adjustable axially thereof and carrying a radial arm adapted to clamp a workpiece against a radial shelf on the body, a clamp structure for clamping said body and cylinder to the base at preselected positions and an inlet connected to a source of fluid pressure for introducing fluid pressure into said cylinder for moving the piston, rod and radial arm to clamping position.

Abstract: A wear pad assembly is provided for machine tools or the like in the form of a generally frusto-conical pad member having a support surface on its base to receive a work piece and a base having a frusto-conical opening supportingly receiving the apex end of the pad member and a threaded attachment member removably connecting the apex end of the pad member with said base. The support surface is preferably knurled or otherwise toothed and hardened to hold a work piece against slipping.