A railway locomotive or wagon has a sand hopper (2) with a valve (1, 3) controlled supply of compressed air to the hopper inlet (10), and a hopper sand outlet pipe (7). A forced ventilation suction outlet (5) is located on or near to the output pipe (7), t...

Brake test device has a central brake testing device (1) and an auxiliary unit (10) for connection to the vehicle brakes. The vehicle is connected to the auxiliary connection via a connection (22), while the auxiliary unit is connected to the central unit ...