Abstract: A uniquely designed two piece bulkhead door for box cars in the railroad industry. The bulkhead door is made of steel side frame members and steel frame cross members using ultra-high strength resilient steels and includes a plurality of "slide in" impact and chemically resistant thermoplastic composite modular panels. This device is used to restrain, secure and separate cargo in freight railroad cars. This load divider presents a number of exceptional features such as light weight construction, modular design, an ergonomically designed handle and structurally effective hardware. The bulkhead door fulfills the impact resistance performance requirements.

Abstract: A trolley assembly for mounting a movable bulkhead door within a rail car. The trolley assembly includes a plurality of frame members that are telescopically interconnected and longitudinally adjustable with respect to each other so that the frame members can be secured together to provide a trolley apparatus that spans pairs of overhead, internal rail car tracks having different lateral spacings. The ends of the trolley assembly each include a plurality of trolley wheels for rotation along the rail car tracks, for movement of the trolley assembly longitudinally within the rail car and to carry a bulkhead door over the length of the rail car interior.