Shock absorbing arrangement

Claim 1

IN A CUSHION UNDERFRAME RAILWAY CAR COMPRISING AN UNDERFRAME, A SLIDING SILL MOUNTED FOR LENGTHWISE MOVEMENT ON SAID UNDERFRAME, A CUSHION DEVICE INTERPOSED BETWEEN SAID SLIDING SILL AND SAID UNDERFRAME FOR PROTECTING THE LADING AND THE CAR BODY FROM DAMAGE, SAID SLIDING SILL INCLUDING A PAIR OF SECTIONS LONGITUDINALLY MOVABLE RELATIVELY TO EACH OTHER FROM A SPACED NEUTRAL POSITION UPON APPLICATION OF A BUFF OR DRAFT IMPACT, A SHOCK ABSORBING MEANS FOR RELIEVING THE STRESSES THROUGH THE LENGTH OF THE SLIDING SILL, SAID SHOCK ABSORBING MEANS HAVING A LESSER TRAVEL THAN SAID CUSHION DEVICE AND BEING SEPARATE FROM SAID CUSHION DEVICE AND MOUNTED FOR MOVEMENT WITH ONE OF SAID RELATIVELY MOVABLE SILL SECTIONS, AND INTERCONNECTING MEANS MOUNTED FOR MOVEMENT WITH THE OTHER OF SAID SILL SECTIONS INTERCONNECTING SAID SILL SECTIONS, SAID INTERCONNECTING MEANS EMBRACING SAID SHOCK ABSORBING DEVICE AND ENGAGING SAID CUSHION DEVICE SO THAT SAID SHOCK ABSORBING MEANS AND SAID CUSHION DEVICE ARE SIMULTANEOUSLY ACTIVATED TO RELIEVE THE STRESSES THROUGH THE LENGTH OF SAID SLIDING SILL DURING TRAVEL OF SAID SHOCK ABSORBING MEANS, SAID SHOCK ABSORBING MEANS INCLUDING MEANS PRECLUDING TRAVEL OF SAID SHOCK ABSORBING MEANS BELOW A PREDETERMINED MAGNITUDE OF IMPACT FORCE AND THEREBY RETAINING SAID SILL SECTIONS IN SAID SPACED NEUTRAL POSITION, SAID SILL SECTIONS BEING CONJOINTLY MOVABLE RELATIVE TO SAID UNDERFRAME WHEN SAID TRAVEL OF SAID SHOCK ABSORBING DEVICE IS RESTRAINED OR TERMINATED SO THAT SAID CUSHION DEVICE IS OPERATIVE TO PROVIDE LADING AND CAR BODY PROTECTION.