Railway car for freight trucks and the like

Claim 1

IN A RAILWAY CAR HAVING RAILWAY CAR TRUCKS, A CENTER SILL, A PAIR OF SIDE SILLS, SAID SIDE SILLS EXTENDING THE LENGTH OF THE RAILWAY CAR, SAID SILLS BEING SECURED TO SAID CAR TRUCKS TO EXTEND THEREBETWEEN, SAID SILLS BEING OF REDUCED HEIGHT AT THE LONGITUDINAL CENTER PORTIONS THEREOF, SAID SIDE SILLS HAVING LONGITUDINALLY OPEN CENTERS, A LOAD PLATFORM, TRUNNION MEANS SECURING SAID LOAD PLATFORM TO SAID CENTER SILL FOR ARCUATE AND VERTICAL MOVEMENT IN THE RAILWAY CAR, ELONGATE SUPPORT MEMBERS RECEIVED IN THE OPEN CENTERS OF SAID SIDE SILLS AND EXTENDING THE LENGTH OF AND BEYOND THE REDUCED HEIGHT CENTER PORTIONS THEREOF, HYDRAULIC MEANS CARRIED BY SAID SIDE SILLS AND ENGAGING END PORTIONS OF SAID SUPPORT MEMBERS TO LIFT THEM VERTICALLY TO ENGAGE SAID LOAD PLATFORM AND CONTROL THE VERTICAL POSITION THEREOF, SAID LOAD PLATFORM BEING SUPPORTED BY SAID SIDE AND CENTER SILLS WHEN AT ITS LOWEST POSITION, AND ROLLER MEANS OPERATIVELY SUPPORTING SAID LOAD PLATFORM ON SAID ELONGATE SUPPORT MEMBERS WHEN SAID SUPPORT MEMBERS PROTRUDE ABOVE SAID SIDE SILLS TO FACILITATE ARCUATE MOVEMENT OF SAID LOAD PLATFORM.