| Description | James Watt & Co. Drawings: Engines (3 items).
1357. The Mines Royal Copper Co., Harefield (AT & AU). Jan. 1857. 3 items.
Two 25 horse power horizontal engines, with 27 inch cylinders, 3 foot strokes.
Air pump and condenser etc. - partially coloured reverse drawing (also used for L. Ruiz); connecting rod and crank, guides and cross bar, air pump lever etc. - partially coloured reverse drawing; sleeper plates and crank shaft and general plan of engines - partially coloured reverse drawing. All the drawings bear letter codes.
Original Portfolio or 'Book' No. 1061.
For the Mines Royal Copper Co., Harefield, Middlesex. The engines powered the company's mills. |