1851 Great Exhibition: Official Catalogue: Class V.: Charles Young and Co
600. YOUNG, CHARLES, and CO., Edinburgh — Inventors and Manufacturers.
Simultaneous-acting level-crossing gates for railways, for the prevention of accidents; consisting of four gates or levers, all of which act together, on one being moved by the gate-keeper.
N.B.— These gates are placed outside the building, at the west end.
Sources of Information