Centrifugal and torque responsive clutch

Claim 1

A CLUTCH ASSEMBLY COMPRISING A DRIVE SHAFT MECHANICALLY CONNECTED WITH A PRIME MOVER, A RING MEMBER RIGIDLY MOUNTED ON SAID SHAFT AND HAVING A PLURALITY OF SEPARATED AXIAL RECESSES FORMED IN THE PERIPHERY OF SAID MEMBER, A ROLLER FREELY ROTATABLE IN EACH OF SAID RECESSES, EACH RECESS BEING FORMED WITH A CONCAVE PART-CYLINDRICAL SURFACE ON ONE SIDE CONFORMING TO THE SURFACE OF THE ROLLER AND WITH A CAM SLOPE AT THE OTHER SIDE THEREOF, A PLURALITY OF PIVOTABLE CLUTCH SHOES MOUNTED AS A WHOLE ROTATABLY ON AND AROUND SAID SHAFT, EACH OF SAID SHOES BEING PROVIDED WITH A SEMI-CYLINDRICAL RECESS FOR RECEIVIN ROTATABLY ONE OF SAID ROLLERS, A DRIVEN MEMBER ROTATABLY MOUNTED ON SAID SHAFT, SPRING MEANS URGING SAID SHOES TO SWIVEL IN THEIR CONTRACTING DIRECTION, SAID CAM SLOPES BEING ADAPTED TO URGE MECHANICALLY SAID ROLLERS AND SAID SHOES TO MOVE IN THEIR EXPANDING DIRECTION FOR INCREASING THE ENGAGING PRESSURE UPON ESTABLISHMENT OF THE CENTRIFUGAL ENGAGEMENT OF SAID SHOES WITH SAID DRIVEN MEMBER.