Clutch

Claim 1

A CLUTCH SYSTEM COMPRISING AN INPUT SLEEVE ADAPTED TO BE DRIVINGLY CONNECTED TO A SOURCE OF ROTATIVE POWER, A DRIVE PLATE SECURED TO SAID SLEEVE FOR ROTATION THEREWITH, AN OPENING IN SAID DRIVE PLATE ADJACENT EACH CURVED END, A SECOND PLATE IN AXIALLY SPACED RELATION TO SAID DRIVE PLATE, SAID SECOND PLATE BEING SUBSTANTIALLY IDENTICAL TO SAID DRIVE PLATE AND HAVING A PAIR OF SPACED OPENINGS IN REGISTER WITH THE OPENINGS OF SAID DRIVE PLATE AND A CENTRAL OPENING OF RELATIVELY LARGE DIAMETER FOR RECEPTION OF SAID DRIVE SLEEVE, A PAIR OF TRUNNIONS MOUNTED IN THE REGISTERING OPENINGS IN SAID DRIVE PLATE AND SAID SECOND PLATE, AN ELONGATED SPRAG ARM ROTATABLY MOUNTED ON ONE OF SAID TRUNNIONS, AN OUTPUT SLEEVE MOUNTED IN SURROUNDING RELATION TO SAID INPUT SLEEVE THE INNER PERIPHERY OF SAID SECOND PLATE BEING IN SPACED RELATION TO SAID OUTPUT SLEEVE, SAID SPRAG ARM HAVING A CAM SURFACE SELECTIVELY ENGAGEABLE WITH SAID OUTPUT SLEEVE, A PULLEY CONNECTED TO SAID OUTPUT SLEEVE, AN ELONGATED LEVER ARM PIVOTALLY MOUNTED ON THE OTHER OF SAID TRUNNIONS, A CONTROL LINK SURROUNDING SAID INPUT SLEEVE, SAID CONTROL LINK BEING PROVIDED WITH A PAIR OF OPENINGS ONE ON EACH SIDE OF THE AXIS OF SAID INPUT SLEEVE, SAID SPRAG AND SAID LEVER EACH BEING PROVIDED WITH AN OPENING ADJACENT ONE END THEREOF, A PIN PASSING THROUGH THE OPENING OF SAID SPRAG AND SAID LEVER AND ONE OF THE OPENINGS OF SAID CONTROL LINK SO THAT EITHER SAID SPRAG OR SAID LEVER MAY BE ROTATED ABOUT THE AXIS OF ITS ASSOCIATED TRUNNION FOR PIVOTAL MOVEMENT OF THE SPRAG ABOUT THE AXIS OF ITS ASSOCIATED TRUNNION FOR LOCKING ENGAGEMENT WITH SAID OUTPUT SLEEVE AND SELECTIVE ROTATION OF SAID PULLEY.