Adjustable splined pinion

Claim 1

IN COMBINATION; AN EXTERNALLY SPLINED SHAFT; AND AN INTERNALLY SPLINED DEVICE FOR ACCOMMODATION RELATIVE LONGITUDINAL MOTION OF SAID SHAFT WITH RESPECT TO SAID DEVICE SAID DEVICE COMPRISING FIRST AND SECOND RELATIVELY ROTATABLE PARTS EACH HAVING AN INTERNALLY SPLINED PORTION WITH SAID SHAFT PASSING THERETHROUGH, SAID PARTS HAVING ADJACENT FACING SURFACES WITH ARE RESPECTIVELY COAXIAL WITH SAID SHAFT, SAID FIRST SURFACE HAVING A FIRST ANNULAR GROOVE FORMED THEREIN COAXIAL WITH SAID SHAFT, SAID SECOND PART SURFACE HAVING A SECOND GROOVE FORMED THEREIN COAXIAL WITH SAID SHAFT FORMING PART OF AN ANNULUS, SAID GROOVES BEING CONCENTRIC AND MUTUALLY DEFINING A CAVITY, SAID FIRST PART HAVING AN OPENING THERIN COMMUMICATING WITH SAID CAVITY, FORCE TRANSFER MEANS IN SAID CAVITY HAVING ONE END ENGAGING ONE END OF SAID SECOND GROOVE AND ITS OTHER END FACING SAID OPENING, AND ADJUSTABLE MEANS IN SAID OPENING AND HAVING A PORTION EXTENDING INTO SAID CAVITY AND ENGAGING THE OTHER END OF SAID FORCE TRANSFER MEANS WHEREBY FORCE EXERTED ON SAID OTHER END OF SAID SECOND GROOVE MEANS IS APPLIED TO SAID ONE END OF SAID SECOND GROOVE THEREBY TENDING TO ROTATE SAID SECOND PART WITH RESPECT TO SAID FIRST PART CAUSING SAID SPLINED PORTIONS TO ENGAGE SAID SHAFT TO PREVENT ROTATABLE MOVEMENT THEREOF WITH RESPECT TO SAID DEVICE.