The platform bridge plate is designed to eliminate minor height differences on a railway between the platform and the train. It is not hinged, but rotates on a steel guide rail. The guide rail is available in black or galvanised steel. It should be welded to the edge of a dock with a pre-installed channel section with a face height of a minimum of 120mm.
The BB bridge plate is simple to use. When not in use, the plate can hang from the guide rail in the downward position and is easily lifted using the handle or handles supplied. The bridge plate is then placed into position on the wagon floor. When in the downward parked position the bridge is unaffected by the passage of trains.
Where diagonal crossing is required, connecting plates are available. (click on right-hand image)