Hydraulic draft rigging

Claim 1

DRAFT RIGGING FOR A RAILWAY VEHICLE COMPRISING: (A) A HOUSING HAVING A FRONT-TO-REAR LONGITUDINAL DIRECTION AND A FIXED LONGITUDINALLY INTERMEDIATE PARTITION; (B) A SILL IN EXTERNAL LONGITUDINALLY COEXTENSIVE RELATION WITH THE HOUSING; (C) A FRONT CUSHIONING UNIT AND A REAR CUSHIONING UNIT BOTH RESISTANT TO CONTRACTION RECEIVED BY SAID HOUSING AT FRONTWARD AND REARWARD SIDES, RESPECTIVELY, OF THE PARTITION; (D) THRUST MEANS DISPOSED FRONTWARDLY OF THE HOUSING, COMPRISING FRONT AND REAR LONGITUDINALLY SEPARABLE MEMBERS, AND MOVABLE REARWARDLY AGAINST THE FRONT UNIT; (E) ANCHOR MEANS CONNECTED TO SAID SILL REARWARDLY OF THE HOUSING WITH RESPECT TO WHICH THE HOUSISNG IS MOVABLE REARWARDLY TO COMPRESS THE REAR UNIT; (F) REARWARD-FACING STOP MEANS ON SAID SILL; (G) DETENT MEANS ENGAGEABLE IN ABUTTING RELATION WITH A FORWARD-FACING SURFACE OF SAID REAR MEMBER AND ENGAGING SAID SURFACE AND SAID STOP MEANS IN THE NEUTRAL CONDITION OF THE RIGGING; (H) SECOND DETENT MEANS CARRIED BY SAID FRONT MEMBER; AND (I) REARWARD-FACING STOP MEANS MOUNTED ON THE HOUSING IN FRONTWARD ENGAGEABLE RELATION WITH THE SECOND DETENT MEANS; (J) SAID FRONT CUSHIONING UNIT HAVING GREATER RESISTANCE TO COMPRESSION THAN SAID REAR CUSHION, AT SAID NEUTRAL CONDITION, TO MAINTAIN THE SECOND DETENT MEANS AGAINST SAID STOPPING MEANS ON THE HOUSING.