Abstract: An improved anti-lock brake system for a vehicle includes an open-type hydraulic valve, a closed-type hydraulic valve, an operational liquid storing apparatus, and a solenoid pump. The open-type solenoid valves supply a braking force generated at the master cylinder to the brake wheel cylinders. The closed-type solenoid valves lock the pressure of the brake wheel cylinders and operate to decompress the wheel cylinders. Decompressing orifices determine a decompressing level for the brake wheel cylinders. The liquid storing apparatus stores liquid introduced thereto from the decompressing orifices. The solenoid pumps supply the liquid stored in the liquid storing apparatuses to the brake wheel cylinders to generate a braking force at the wheel cylinders.

Abstract: Hinge eye for a piston-cylinder unit, or shock absorber, in particular for air springs, comprising a bracket with an opening, a bearing surface for a connection shank which is connected to a base body, and at least one retaining tab. The retaining tab is actively connected to the piston-cylinder unit and forms a locking connection with a groove of the connection shank. The retaining tab(s) and the part of the hinge eye which forms the opening with the bearing surface are realized in one piece.

Abstract: An electromagnetic air brake control system including a module portion and an integral relay valve portion. The module portion includes a brake pipe cut-off valve. A bistable electropneumatic valve device pneumatically connected to the brake pipe cut-off valve. A pole changing relay electrically connected to an electric coil of the bistable electromagnetic device. The pole changing relay having an electric coil connected to a d.c. voltage. A quick release relay having an electric connection to the d.c. voltage and having contacts connectable to contacts of the pole changing relay. A pair of relay driver circuits supplied by a supplemental power supply for causing the electric coils of the pole changing and quick release relays to be energized and deenergized in accordance with output signals received from a command control circuit and a monitor checking circuit.

Abstract: A switch for a floor transportation system is described, whereby a guide rail is provided below the floor level. A guide pin extends into this guide rail. In front of this guide pin, a guide shoe of ferromagnetic material is pivotally provided. In the area of the switch, the side walls of the guide rail are provided with electromagnets which pull the guide shoe toward the one or the other wall area so that the guide shoe and the guide pin can be directed into one or the other branch rail of a guide rail fork.