 It is worked by two low-pressure condensing engines, with cylinders 28 inches diameter, stroke feet; average working-pressure, 5 lbs … consumption of fuel tons per diem … About 30 tons gross is the usual load drawn up, and five minutes the time occupied; the descending loads draw out the rope after them … The signals from the bottom of the incline are given by an air-tube, about inch diameter, with a small bell in the engine-house.The two steam engines were supplied by J.& C. Carmichael.