Folding bridge between railway or road ramps - has extra constantly horizontal section hinged away from swivel axis

摘要

Ramps to be connected by the folding bridge are fitted to railway or other tracks. The bridge is mounted at the end on one ramp, and swings between operative and track-clelaring positions. A guided bridge section is hinged to the bridge, at a point away from the swivel axis. This can be bent back, and adopts a horitonzal position in every bridge setting. It is pref. of the same length as the section hinged to the ramp. This enables a wide span to be bridged, with a unit which is compact in height.