Abstract: An internal side load compensation device for use with a linear actuator comprises at least one cam beam affixed to the actuator housing pre-loaded to a known side load to influence at least one cam roller affixed to the primary driver of the linear actuator. The cam beam is pre-loaded by adjusting pre-load bars extending within the actuator housing.

Abstract: An electromechanical linear actuator comprises an electric motor driving a cog belt and pulley device in turn rotating a lead screw of the ball type. The lead screw is restrained axially and rotates a drive nut which moves axially along the screw in one and an opposite direction. The drive nut in turn moves an actuator assembly comprising a drive ring, four (4) circumaxially spaced rods, and an actuating head connected at a remote end of the rods.

Abstract: A machine tool including a base having a work zone including a drive gear, a work shuttle having a pair of work stations each having at least one work spindle and an idler gear, the work shuttle assembly is mounted on the base and is displaced to alternately locate each of the work stations at the work zone and at a load/unload zone, and each of the work spindles is presented at a predetermined orientation at the work and load/unload zones by means of a gear rack mounted on the base for engaging each of the idler gears as the shuttle is displaced from one to another of the positions, the gear rack having at least a portion of the teeth thereof removed proximate the drive gear whereby the idler gear of the station located at the work zone will be operatively associated with the drive gear but will not be operatively associated with the gear rack, rotation of the drive gear is prevented as the work shuttle assembly is displaced and rotation of the drive gear is allowed when the work shuttle assembly is located

Abstract: A strainer for a tub drain has a spring-biased plunger for moving the stopper from its closed position to an open, liquid flow position. The plunger has a stem that extends into the passageway of the body of the strainer, and is mounted thereon for axial reciprocation between an extended outward (open) position and a depressed inward (closed) position. An axial bore extends through the stopper member, and provides a surface portion conforming to the corresponding portion of the plunger stem. Inward movement of the plunger causes a sealing ring, which is mounted on the stem portion, to be displaced to a position of frictional engagement on the corresponding surface portion of the stopper member bore. Subsequent outward movement, under the force of the biasing spring, causes the plunger to lift the stopper member away from the seat portion of the body, and thereby to open the strainer.