Abstract: A railway car door operator assembly is adapted for use in opening or closing railway car doors. The assembly is mountable on a self-propelled vehicle and includes a base mountable on the vehicle. An elongated arm having one end secured to an articulated joint on the base secures the arm to the base limiting movement of the arm to movement in a substantially horizontal plane. Another end of the arm is secured to a releasable restraint for releasable connection to a railway car door.

Abstract: This invention relates to a portable low profile derail which is releasably securable to a railroad rail for derailing from the rail a flanged wheel of railroad equipment. The derail has a monolithic body including a flat rider plate and an integral elongated holding channel. At least three field side fasteners are mounted on the holding channel and connectable with the rail. A substantially straight rub bar is fixed to the derail body and is set at an angle to the rail when the derail is secured to the rail. The derail includes a securing assembly which is selectively connectable to the rail for securing the derail onto the rail.

Abstract: A railway car door operator assembly is adapted for use in opening or closing railway car doors. The assembly is mountable on a self-propelled vehicle and includes a base mountable on the vehicle. An elongated arm having one end secured to an articulated joint on the base secures the arm to the base limiting movement of the arm to movement in a substantially horizontal plane. Another end of the arm is secured to a releasable restraint for releasable connection to a railway car door.