Abstract: A rail car sliding door includes a substantially rectangular frame having a pair of side frame members and top and bottom frame members which are secured to each other. At least one corrugated panel is secured to the frame. Top, bottom and side reinforcing channels are secured to a respective one of the frame members for door strengthening purposes. The top and bottom reinforcing channels extend over the side reinforcing channels to the door side edges for better bearing loads imposed on the door. The door may advantageously be provided with a corrugated metal panel in which substantially equal amounts of panel material are provided on each side of a plane which bisects the door thickness dimension. The door also may advantageously be provided with a hasp which is secured to the door by means of a U-shaped hasp securing member.

Abstract: A railway house car having a door supporting track on a car side beneath a door opening, a door formed with a lower edge surface for support of the door on the top of the track and to provide a good light seal when the door is in the closed position. The edge surface has a plurality of openings with a portion of a roller extending from each one. Corresponding copes are located in the top of the track to receive the roller portions when the door is in the closed position. The rollers and corresponding copes permit at least two rollers to engage the top of the track and support the door for movement when the door is in other positions on the track than the closed position. A door leverage or force-multiplying mover is selectively interconnected to the door by means of a hasp to initially move the door from the closed position. Alternatively, a fulcrum is provided so that a pry bar can manually engage a bottom retainer to accomplish the initial door movement.