| Description | Water Works Engines (17 items). 1086. The New River Co., Highgate, London (IP). Jul., Sep. 1845, Oct. 1852, Feb., Apr., May 1853. 17 items. 20 horse power side lever boat engine for land, with [26¾ inch cylinder, 2½ foot stroke]. Cross-section and plan of the engine and boilers - coloured reverse drawing made in the London office and sent to Soho; 20 horse boiler; steam and feed pipes - partially coloured original, direct copy and partially coloured reverse drawings; cross-section and plan of the engine and boilers - coloured reverse drawing; tracing of cross-section showing shaft; sketch of shaft for working the pumps, marked "sent with Mr. Brown's letter 11 Sep. 1845"; sketch plan of the shaft sent to the Foundry, Sep. 1845. The steam pipe drawings and the cross-section and plan made in Soho bear letter codes. Also the following later items: tracings of plan and cross-section of the engine and 10½ inch pumps, Oct. 1852; shaft and gearing for working the 10½ inch pumps, platform for three-throw pump shaft showing the beam plates etc. - partially coloured original and partially coloured reverse drawings Feb. & Apr. 1853; shafts - press copy drawing marked "with letter to Mr. Brown, 11 May 1853"; spur wheel shaft and clutch, May 1853. The drawings of Feb. & Apr. 1853 bear letter codes. Original Portfolio or 'Book' No. 970. Catalogue of Old Engines p. 182. For The New River Co. Pumping engine, Highgate, London.
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