Freight bracing apparatus

Claim 1

IN A FREIGHT CARRYING VEHICLE HAVING A FLLOR AND OPPOSED SIDE WALLS A BULKHEAD MOVABLE BETWEEN A PLURALITY OF SELECTED POSITIONS WITHIN SAID VEHICLE, LOCKING PINS CARRIED BY SAID PIN BULKHEAD AT THE TOP AND BOTTOM THEREOF RAIL MEMBERS MOUNTED ON AND EXTENDING LONGITUDINALLY OF SAID VEHICLE ADJACENT THE TOP OF SAID BULKHEAD, A TROLLEY BEAM, SAID RAILS SUPPORTING THE OPPOSITE ENDS OF SAID TROLLEY BEAM FOR MOVEMENT LONGITUDINALLY OF SAID VEHICLE, SAID RAILS ALSO HAVING MEANS SPACED THEREALONG FOR COOPERATION WITH THE ONES OF SAID LOCKING PINS AT THE TOP OF SAID BULKHEAD FOR HOLDING SAID BULKHEAD IN SAID POSITIONS, AND CARRIAGE MEANS SUPPORTING SAID BULKHEAD ON SAID TROLLEY BEAM AND BODILY MOVABLE LONGITUDINALLY OF SAID BEAM FOR MOVING SAID BULKHEAD LONGITUDINALLY OF AND PARALLEL TO SAID BEAM, SAID TROLLEY BEAM INCLUDING A ROLLER TRACK EXTENDING LONGITUDINALLY THEREOF, SAID CARRIAGE MEANS INCLUDING ROLLERS ENGAGING SAID TRACK AND SUPPORTING SAID CARRIAGE MEANS ON SAID BEAM FOR ROLLING MOVEMENT THEREALONG, SAID MEANS ON SAID RAILS COMPRISING HORIZONTALLY DISPOSED FLANGES EXTENDING INWARDLY INTO SAID VEHICLE FROM ADJACENT EACH OF SAID SIDE WALLS AND SAID CARRIAGE MEANS INCLUDING A C-SHAPED BRACKET SECURED TO SAID BULKHEAD AND ADAPTED TO FIT OVER SAID FLANGES TO ENABLE SAID BULKHEAD TO BE DISPOSED UNDER SAID FLANGES IN POSITIONS PARALLEL AND CLOSELY ADJACENT TO EACH OF SAID SIDE WALLS.