The bridge plate (5), which is located under the door of a train carriage and by means of a crank drive (6) moves in and out of the casing to close the gap between the train carriage and the station platform. For safety during this operation the arrangemen...

A sand gritting system for a railway vehicle has a vertical hopper with a tapering bottom end (2) to duct sand to a pneumatic dosing valve to a Venturi valve (7) to mix into a vertically downwards directed air stream. The sand is ducted into a mixing chamb...