Uncoupling device for long travel cushioned underframe

Claim 1

IN A RAILWAY CAR OF THE CUSHIONED UNDERFRAME TYPE IN WHICH A COUPLER IS TURNABLE ABOUT A VERTICAL AXIS AND IS ATTACHED FOR MOVEMENT WITH A SILL LONGITUDINALLY MOVABLE RELATIVE TO THE END SILL OF THE CAR IN TELESCOPING RELATION WITH THE CAR IN RESPONSE TO BUFF OR DRAFT FORCES, AN UNCOUPLING DEVICE MOUNTED ON SAID END SILL AND SAID LONGITUDINALLY MOVABLE SILL AND CONNECTED TO THE COUPLER FOR UNLOCKING THE LATTER, COMPRISING A MANUAL OPERATING MEANS SUPPORTED ALONG THE END SILL OF THE CAR, A COUPLER LOCK OPERATING MEANS MOUNTED ON SAID LONGITUDINALLY MOVABLE SILL FOR MOVEMENT THEREWITH INCLUDING A LONGITUDINALLY PIVOTAL SHAFT HAVING A LENGTH SLIDABLY ENGAGEABLE WITH SAID MANUAL OPERATING MEANS FOR THE FULL LENGTH OF SAID RELATIVE LONGITUDINAL MOVEMENT, A CRANK ARM ON SAID SHAFT, AN UNCOUPLING ROD HAVING MEANS CONNECTABLE AT ONE END TO THE COUPLER FOR UNLOCKING THE LATTER, TORQUE PROVIDING MEANS OPERATIVELY CONNECTED TO SAID UNCOUPLING ROD FOR PROVIDING THE TORQUE TO TURN SAID UNCOUPLING ROD TO ITS UNLOCKED POSITION, TENSION LINK MEANS CONNECTING SAID TORQUE PROVIDING MEANS WITH SAID CRANK ARM OF SAID SHAFT, AND FULCRUM MEANS IN SUBSTANTIAL ALIGNMENT WITH SAID LINK MEANS AND ON SAID LONGITUDINALLY MOVABLE SILL SUPPORTING SAID UNCOUPLING ROD AND TORQUE PROVIDING MEANS SO AS TO RETAIN SAID TORQUE PROVIDING MEANS IN SUBSTANTIALLY THE SAME RELATIONSHIP WITH SAID CRANK ARM IN THE DIFFERENT ANGULAR POSITIONS OF THE COUPLER UPON ACTUATION OF SAID MANUAL OPERATING MEANS.