Explanatory notes
… the centre, and which are fitted with railway or tramway tracks; most are also equipped with rollers carrying the … the masonry (e.g., of terminal stations) or into robust frameworks (e.g., in shunting yards). (4) Loading gauges , … generally at some distance, by the movement of levers, cranks, rods, wires, chains, etc., or by hydro‑pneumatic …