Abstract: A device and system for controlling travel of a railcar along a set of rails is provided. In one example, a railcar stop is coupled to the set of rails and is selectively movable between a first position wherein the railcar is free to travel along the set of rails and a second position wherein the railcar stop engages the treads of the wheels to thereby prevent travel of the railcar in at least one direction along the rails.

Abstract: A bridge and stopper mechanism for an apparatus for lateral transfer of roller pallets, the apparatus serving to transfer roller pallets and employing bridges as extensions of rails between the shelving and the transporter body, the stopper being placed on the shelving to control the access of roller pallets to the lateral transporter. To reduce the number of hydraulic cylinders and to simplify the operation of the mechanism, the invention is implemented in such manner that at least one stopper actuator lever is pivoted on each end of the internal transporter body, the said levers being connected to the bridges and moving along with these. When pressing against the base of the stopper peg, the stopper actuator lever is turned from a horizontal position to a low position.

Abstract: A positioning device for the trolleys of an electric overhead trolley conveyor is described. This positioning device comprises a carrier which is shiftable in the direction of the movement of the trolley. The carrier is connected with a damping device. Further it comprises an engaging member cooperating with the trolley, whereby the engaging member is rendered inoperative toward the end of the carrier movement. This insures on the one side, that the trolley reaches the defined end position by engaging a stopping member. On the other side it is prevented, that the trolley strikes against the stopping member 40 with a high force of inertia. For enabling a recommenced movement the stopping member 40 may be rendered inoperative. The carrier is preferably utilized for this purpose.

Abstract: Movable buffer stop apparatus (10) for a railway vehicle comprises a stop plate (27) on an arm (21), and a support strut (31) movable angularly relative to the arm (21) by an hydraulic cylinder (33) between raised and lowered conditions of the apparatus (10). The arm (21) and the support strut (31) are mounted on a truck (14) which cooperates with a fixed energy absorbing buffer (35) in a sunken pit (11).

Abstract: An impact energy attenuator has a housing in front of a roadway abutment. A leading nose piece and a number of impact walls can move toward and away from the abutment. Coil springs urge the nose piece, the several impact walls, and the housing apart. A cable attached to the nose piece is wound around a drum and is spring tensioned to rotate the drum in a take-up direction. Rotation of the drum in the opposite direction is inhibited by a hydraulic pump discharging through a restricted orifice.

Abstract: A buffer stop comprising an arm capable of being pivotally-mounted at or near one end portion on or adjacent a railway track, and a piston-and-cylinder device. One end portion of the piston-and-cylinder device is pivotally-connectible at or near the other end portion of the arm. The other end portion of the device is capable of being pivotally-mounted on or adjacent the railway track at a distance away from the one end portion of the arm.