| Description | Water Works Engines (16 items).
1115. Chelsea Water Works, London (XF). Feb., Aug., Sep. 1821. 16 items.
Single-acting engine, with 54 inch cylinder, 8 foot stroke, parellel motion, cast iron beam.
Plan of the engine house - original and reverse drawings (the reverse copy is marked "corrected copy 10 Aug. 1821"; these drawings show the 50 inch engine of 1810); longitudinal section of the engine house - partially shaded reverse drawing; shaded sketch of pumps, air vessel etc.; cross-section showing the pumps, view of the middle wall between the pumps - partially shaded reverse drawing; pump - partially shaded original drawing and partially shaded reverse drawings, with small rough sketch taken from them; sketch section of the pump; sketch plan of pump flanches and supposed beams; press copy sketch of pumps, cross-bar etc.; sketches of the pump, clack etc. sent to the Foundry (4 small sheets stuck together); partially coloured plan of part of the engine house showing well and beams etc. All the drawings bear letter codes except the last 4 items.
Also set of 3 sheets of tracings for new pumps etc.: 1 - general drawings for new pumps, 50 and 54 inch engines; 2 - details of working barrel, girders etc., 54 inch engine; 3 - suction and delivery pipes etc., 54 inch engine.
Original Portfolio or 'Book' No. 732. Catalogue of Old Engines p. 180.
For Chelsea Water Works. Pumping engine, Chelsea, London. This engine was erected alongside the 50 inch engine of 1810-1811 [see Portfolio 5/1117]. Several engines had been purchased by Chelsea Water Works before this one. The first was in 1777-1778 [see Pf. 1103]. John Farey described an engine with a fly wheel and rotative motion erected in 1782 at Pimlico Wharf [A Treatise on the Steam Engine, p. 352]; when he inspected it in 1803-1804 it had a crank. Dickinson & Jenkins describe this engine as being similar to the rotative one proposed for the New River Co. in 1782-1783 [see Portfolio 5/1090], but no drawings specifically for Chelsea have been found. A 48 inch engine was erected at Pimlico Wharf in 1803-1804 [see Portfolio 5/1116]. In 1810 the firm bought the 50 inch engine alongside which this engine was placed.
See also: 4/95 (Engine Order Book No. 9).
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