Model of an independent type 'Cabinet' rotative beam engine, with self-supporting iron frame and cistern bed, made by Boulton, Watt & Co., and owned by James Watt, c1813, with tin container, for cigarettes, containing nineteen steel flat washers, fourteen slotted brass dome-head machine screws and an āLā shaped flat piece of wood. Model, of an 'Independent' type beam engine by Boulton, Watt & Co., 1813 1812-1814
Model of a double acting beam type condensing engine with conical drop valves worked by an eccentric. Model of a double acting beam type condensing engine circa 1800
Model representing Murray's portable beam engine, by James Fox, Derby, 1808 Model of Murray's portable beam engine 1808
Low Pressure condensing double acting rotative beam engine c. 1800 from the Salt Union Mines. Low Pressure condensing double acting rotative beam engine c. 1800 from the Salt Union Mines