Combined clutch and brake control for tractors

Claim 1

IN A TRACTOR HAVING A SET OF STEERABLE WHEELS AND A SET OF DRIVEN WHEELS, AND A POWER TRAIN WHICH INCLUDES AN ENGINE, A MAIN DRIVE SHAFT AND CLUTCH MEANS ADAPTED TO CONNECT SAID ENGINE WITH SAID MAIN DRIVE SHAFT WHEN ENGAGED AND TO DISCONNECT SAID ENGINE FROM SAID MAIN DRIVE SHAFT WHEN DISENGAGED, THE IMPROVEMENT COMPRISING A DRIVEN SHAFT HAVING A WORM GEAR OPERATIVELY CONNECTED TO SAID DRIVEN WHEELS, TRANSMISSION MEANS HAVING A PLURALITY OF SELECTIVELY ENGAGEABLE GEARS CONNECTING SAID DRIVEN SHAFT WITH SAID MAIN DRIVE SHAFT, AN ACTUATING PEDAL OPERATIVE TO ENGAGE AND DISENGAGE SAID CLUTCH MEANS, MEANS BIASING SAID PEDAL INTO A POSITION WHEREIN SAID CLUTCH MEANS IS ENGAGED, A BRAKE OPERATING ROD MOUNTED ON SAID TRACTOR FOR OSCILLATION ABOUT ITS LONGITUDINAL AXIS, A BRAKE DISC MOUNTED ON SAID DRIVEN SHAFT, A BRAKE SHOE MOUNTED ON SAID ROD AND MOVEABLE INTO A POSITION ENGAGING SAID BRAKE DISC TO STOP SAID TRACTOR, AND MEANS CONNECTED TO SAID PEDAL AND TO SAID ROD FOR OSCILLATING SAID ROD WHEREIN MOVEMENT OF SAID PEDAL DISENGAGES SAID CLUTCH MEANS AND OSCILLATES SAID ROD CAUSING SAID BRAKE SHOE TO CONTACT SAID BRAKE DISC.