Reversing gear

Claim 1

IN A REVERSING GEAR HAVING AN INPUT SHAFT, AN OUTPUT SHAFT, FORWARD DRIVING AND REVERSE DRIVING GEARWHEELS DRIVEN BY THE INPUT SHAFT AND ROTATABLY MOUNTED ON THE OUTPUT SHAFT, A FORWARD FRICTION CLUTCH AND A REVERSE FRICTION CLUTCH BETWEEN THE OUTPUT SHAFT AND THE FORWARD AND REVERSE GEARWHEELS RESPECTIVELY, EACH CLUTCH HAVING A DRIVEN PART AND A DRIVING PART, THE DRIVING PARTS BEING CONNECTED TO THE RESPECTIVE GEARWHEELS FOR ROTATION THEREWITH, A ROTATABLY MOUNTED RING MOUNTING THE DRIVEN PARTS OF SAID CLUTCHES, AND A REVERSING CONTROLLER FOR SELECTIVE ENGAGEMENT OF EITHER CLUTCH; TWO TORQUE TRANSMITTING COMPONENTS LOCATED BETWEEN THE CLUTCHES COMPRISING AN OUTPUT COMPONENT IN THE FORM OF A HELICALLY THREADED WORMLIKE SLEEVE SPLINED TO THE OUTPUT SHAFT AND AN INPUT COMPONENT IN THE FORM OF A NUT LIKE COLLAR WHICH IS DRIVABLE BY THE RING AND IS MOUNTED ON THE WORM-LIKE SLEEVE; AND INCLUDING PUSHER MEANS BETWEEN THE NUT LIKE COLLAR AND THE FORWARD AND REVERSE CLUTCH RESPECTIVELY, ACTUATABLE TO PUSH THE DRIVING AND DRIVEN MEMBERS OF EITHER CLUTCH INTO INTERENGAGEMENT, SAID NUT LIKE COLLAR BEING DISPLACEABLE BY SAID REVERSING CONTROLLER AXIALLY AND CONSEQUENTLY ROTATIONALLY ON THE WORM-LIKE SLEEVE TO ACTUATE THE PUSHER MEANS, WHEREBY, AS THE DRIVEN MEMBER OF THE CLUTCH ROTATES, THE NUT LIKE COLLAR MOVES FURTHER AXIALLY AND ROTATIONALLY ON THE WORM-LIKE SLEEVE TOWARDS THE SELECTED CLUTCH AND PROVIDES ADDITIONAL PUSH FROM THE PUSHER MEANS THEREBY INCREASING THE FRICTIONAL ENGAGEMENT OF THE CLUTCH.