One-position clutch

Claim 1

An improved one-position clutch for detachably coupling a driven shaft to a driving shaft comprising the combination of a driving member coupled to said driving shaft for rotation therewith, a driven member coupled to said driven shaft for rotation therewith, means for providing relative movement of said members axially of the shafts to which they are coupled for engagement and disengagement with each other, engagement means on said members for releasably connecting and disconnecting them rotationally as a result of said axial movement comprising a pair of circumferentially spaced notches and a pair of correspondingly spaced lugs proportioned to removably enter said notches upon said relative axial movement, said lugs and said notches each having a generally axially aligned surface and a surface aligned at an angle to said axially aligned surface, one of said notches having a shorter radial length than the other notch and one of said lugs whereby said member can only be reengaged with the said shafts in one rotational position relative to each other, and a bearing positioned intermediate one of said members and its mounting shaft, a key coupling said one member to its mounting shaft for rotational movement therewith and permitting axial movement of sad one member along its mounting shaft, and a resilient member yieldably holding said one member against axial movement.