Abstract: A one way clutch assembly, including a frame, a bearing member having a vertical, central bore therein fixedly secured to the frame, a pulley rotatably mounted on the bearng member, a vertical, drive spindle rotatably mounted within the bearing member central bore, a retainer fixedly secured on the lower protruding end of the bearing member, a circular cam plate rotatably mounted on the retainer, the cam plate having an interior camming surface for effecting radially inward and outward movement and an arcuate recess, a mounting stud fixedly secured to and projecting upwardly from the pulley through the arcuate recess in the cam plate, a pawl rotatably mounted at one end on the mounting stud and having a pin at the other end extending into the interior camming surface of the cam plate, wherein the pawl is movable radially inwardly and outwardly by the interior camming surface, and a ratchet plate fixedly mounted on the lower end of the drive spindle for rotation therewith, the ratchet plate having a plurality

Abstract: In a tape recording machine having a capstan drive system for driving the tape, an improved slip clutch for allowing the take up reel to be driven at a variable rotational speed while the capstan is driven at a uniform rotational speed. The slip clutch includes a driven spindle, a plastic member fixedly secured to the top of the driven spindle, the member having a lower, elongate cylindrical portion and an upper, outwardly extending flange defining a downwardly facing shoulder and an upwardly facing cam surface, and a substantially annular, plastic hub frictionally engaging the cylindrical portion of the plastic member and having an interior diameter slightly smaller than the external diameter of the plastic member cylindrical portion.