1951 July, W. R. Watson, “An Edge HillBeam Engine”, inRailway Magazine, page489:
The locomotives of the day had insufficient power to work the trains up the gradient, and it was decided to installbeam type steamengines on the platform at Edge Hill Station, to haul them on an endless hempen rope through the tunnel, 2,230 yd. long. Thebeam engines were placed in service in 1836, and the working of the incline by ropes continued until 1870.
