Railway car

Claim 1

IN A RAILWAY CAR HAVING A WHEEL ASSEMBLY ADJACENT EACH END OF THE CAR, AN UNDERFRAME ON THE WHEEL ASSEMBILES HAVING A CONTINUOUS CENTER STILL STRUCTURE EXTENDING GENERALLY THE LENGTH OF THE CAR, SAID CENTER SILL STRUCTURE HAVING AN END SECTION ON EACH END OF THE CAR OVER THE ADJACENT WHEEL ASSEMBLY DISPOSED SUBSTANTIALLY CENTRALLY OF THE WIDTH OF THE CAR, AN INTERMEDIATE SECTION BETWEEN THE WHEEL ASSEMBLIES HAVING A PAIR OF GENERALLY PARALLEL INTERMEDIATE CENTER SILLS SPACED FROM EACH OTHER AND OFFSET FROM THE LONGITUDINAL CENTER LINE OF THE CAR AND A TRANSITION SECTION CONNECTING EACH END SECTION AND THE ADJACENT INTERMEDIATE SECTION AND FORMING THE CONTINUOUS CENTER SILL STRUCTURE, A DECK PLATE OVER THE CENTER SILL STRUCTURE HAVING AN ELONGATED OPENING THEREIN BETWEEN THE SPACED INTERMEDIATE CENTER SILLS AND EXTENDING GENERALLY ALONG THE LONGITUDINAL AXIS OF THE CAR, A PLURALITY OF SPACED CROSS BEARER MEMBERS SECURED TO THE INTERMEDIATE CENTER SILL AT AN ELEVATION BELOW THE DECK PLATE AND EXTENDING BETWEEN AND OUTWARDLY OF THE INTERMEDIATE CENTER SILLS, A SIDE SILL ON EACH SIDE OF THE UNDERFRAME SECURED TO THE CROSS BEARER MEMBERS OUTWARDLY OF THE INTERMEDIATELY CENVER SILLS, SAID DECK PLATE EXTENDING BETWEEN EACH OF SAID SIDE SILLS AND THE ADJACENT INTERMEDIATE CENTER SILL ADAPTED TO SUPPORT THE WHEELS OF A ROADWAY VEHICLE OR THE LIKE, A REINFORCING MEMBER SECURED TO THE DECK PLATE AND EXTENDING DOWNWARDLY FROM THE DECK PLATE ABOUT THE PERIPHERY OF SAID OPENING TO A SUPPORTING RELATION ON SAID CROSS BEARER MEMBERS, A GENERALLY HORIZONTALLY EXTENDING SUPPORT MEMBER EXTENDING ACROSS THE OPENING AND SECURED TO THE REINFORCING MEMBER ON OPPOSITE SIDES OF THE OPENING AT AN ELEVATION BELOW THE DECK PLATE, AND A COLLAPSIBLE HITCH MOUNTED ON SAID SUPPORT MEMBER AT AN ELEVATION BELOW THE UPPER SURFACE OF THE DECK PLATE ADAPTED TO MOVE BETWEEN COLLAPSED AND ERECT POSITIONS FOR RELEASABLY ENGAGING THE KINGPIN OF A TRAILER.