Power control mechanism for a variable ratio drive

Claim 1

A CONTROL FOR A VARIABLE SPEED DRIVE INCLUDING A SUPPORT, A VARIABLE RATIO DRIVE ON THE SUPPORT HAVING A CONTROL ELEMENT WHICH IS ROTATABLE TO VARY THE RATIO OF SAID VARIABLE SPEED DRIVE, A DRIVING SHAFT ON SAID SUPPORT, A FRICTIONAL DRIVING ELEMENT ON SAID DRIVING SHAFT, A DRIVEN SHAFT SUPPORT CARRIED ON SAID SUPPORT, A DRIVEN SHAFT CARRIED ON SAID DRIVEN SHAFT SUPPORT TRANSVERSELY OF SAID DRIVING SHAFT, A FRICTIONALLY DRIVEN ELEMENT ON SAID DRIVEN SHAFT SPACED FROM SAID FRICTIONAL DRIVING ELEMENT, SAID DRIVEN SHAFT SUPPORT COMPRISING SPACED BEARINGS IN WHICH SAID DRIVEN SHAFT IS SUPPORTED, YIELDING MEANS FIXED TO SAID SUPPORT IN SUPPORTING RELATION TO SAID BEARINGS TO BE DISPLACED TO PROVIDE FOR AXIAL DISPLACEMENT OF SAID DRIVEN SHAFT, MEANS FOR SHIFTING SAID DRIVEN SHAFT AXIALLY TO BRING SAID FRICTIONALLY DRIVEN ELEMENT INTO DRIVEN CONTACT WITH SAID FRICTIONAL DRIVING ELEMENT, AND TRANSMISSION MECHANISM CONNECTED TO SAID DRIVEN SHAFT AND TO SAID CONTROL ELEMENT TO TRANSMIT ROTATIONS OF SAID DRIVEN SHAFT TO SAID CONTROL ELEMENT FOR CHANGING THE RATIO OF SAID VARIABLE SPEED DRIVE.