Disabling means for a friction device operating mechanism

Claim 1

A FRICTION DEVICE OPERATING MECHANISM COMPRISING A HOUSING, RESILIENTLY URGED MEANS MOVABLE IN SAID HOUSING AND DEFINING THEREWITH AN EXPANSIBLE FLUID PRESSURE CHAMBER, A WORKING END ON SAID RESILIENTLY URGED MEANS EXTERIORLY OF SAID CHAMBER, SAID RESILIENTLY URGED MEANS BEING MOVABLE IN RESPONSE TO FLUID PRESSURE IN SAID CHAMBER LESS THAN A PREDETERMINED AMOUNT TO ENERGIZE SAID WORKING END, AN OPENING IN SAID HOUSING, A DISABLING MEMBER EXTENDING THROUGH SAID OPENING N RELEASABLE ENGAGEMENT WITH SAID HOUSING IN THE INOPERATIVE POSITION THEREOF INCLUDING MEANS FOR PREVENTING DISPLACEMENT OF SAID DISABLING MEMBER FROM SAID OPENING, DRIVING MEANS FOR DRIVING ENGAGING WITH SAID RESILIENTLY URGED MEANS, AND BEARING MEANS FOR BEARING ENGAGEMENT WITH SAID HOUSING, SAID DISABLING MEMBER BEING MANUALLY MOVABLE FROM THE INOPERATIVE POSITION SUBSEQUENT TO DISENGAGEMENT THEREOF FROM SAID HOUSING TO AN OPERATIVE POSITION ENGAGING SAID DRIVING MEANS WITH SAID RESILIENTLY URGED MEANS AND ENGAGING SAID BEARING MEANS WITH SAID HOUSING, AND SAID DISABLING MEMBER BEING THEREAFTER FURTHER MOVABLE IN RESPONSE TO AN APPLIED FORCE TO MECHANICALLY DRIVE SAID RESILIENTLY URGED MEANS IN A DIRECTION TO DEENERGIZE SAID WORKING END.