One-way backstop

Claim 1

IN COMBINATION, A ONE-WAY BRAKE COMPRISING A CYLINDRICAL INNER RACE ADAPTED TO ENGAGE A DRIVE SHAFT, A CYLINDRICAL OUTER RACE COAXIALLY DISPOSED ABOUT SAID INNER RACE AND HAVING WALLS AT THE ENDS THEREOF NORMAL TO THE AXIS THEREOF, AND MEANS DISPOSED BETWEEN SAID INNER AND OUTER RACES FOR LOCKING THE INNER RACE TO THE OUTER RACE ON ROTATION OF SAID SHAFT IN ONE DIRECTION OF ROTATION AND RELEASING THE INNER RACE FROM THE OUTER RACE ON ROTATION OF SAID SHAFT IN THE REVERSE DIRECTION; AND AN ANCHORING MECHANISM COMPRISING A PAIR OF PARALLEL ARMS, EACH OF SAID END WALLS OF SAID OUTER RACE BEING AFFIXED TO ONE OF THE ARMS, AND THE ARMS EXTENDING OUTWARDLY FROM THE AXIS OF THE OUTER RACE, AN ELONGATED BEAM HAVING ONE END ADAPTED TO BE ANCHORED AND THE OTHER END DISPOSED BETWEEN THE ARMS, SAID BEEM EXTENDING FURTHER FROM THE BRAKE THAN THE ARMS, MEANS CONNECTING SAID BEAM TO SAID ARMS COMPRISING CONNECTORS OF LESSER SHEAR STRENGTH THAN THE REMAINING COMPONENTS IN SAID ONE-WAY BRAKE, WHEREBY THE CONNECTION BETWEEN SAID ARMS AND SAID BEAM WILL RUPTURE ON THE APPLICATION OF TORQUE TO SAID SHAFT IN THE FIRST DIRECTION IN AN AMOUNT GREATER THAN THE SHEAR STRENGTH OF SAID CONNECTORS.