Importance

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Abstract

A multi-unit articulated railway freight car defining a container well in each of the several units, with container support members attached to the side sills of each unit to support standard intermodal cargo containers at a location low enough to permit a second tier of containers to be stacked atop a bottom tier without exceeding the maximum height restrictions of most main railroad lines, although ample clearance is preserved beneath the bottom of the car when fully loaded. Each container support member is constructed of thick plate steel of high strength, formed cold to include residual internal stresses in order to resist failure when subjected to the loads imposed by supporting loaded containers carried in the container well. The side sill structures are of box tube and formed sheet construction of small enough width to permit carriage of newer, larger, sizes of intermodal cargo containers without the car or containers protruding outside the clearance available along most railroad lines. A truss structure interconnects the bottom chords of the side sills and interconnects the carbon container support members. Members of the truss structure are attached to the cargo container support members by hinges.

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First Claim