| Description | 20 horse power single acting sun & planet engine, with 24 inch cylinder, 6 foot stroke, chain connection. Parallel motion incorporated Nov. 1784 [?], made double-acting 1795, cylinder increased to 25 inches 1814.
Includes reverse sections and plans of engine - general view has parallel motion sketched in, and a drawing of framing dated Nov. 1784 shows parallel motion; diagram showing movement of parallel motion, Nov. 1784; working gear, injection gear, piston rod, gudgeons and plummer blocks, fly wheel etc.; pipes and other components dated 1785; boiler and cistern; cylinder platform; horse gin, ground plans and sections of the brewery showing horse gin and connection to the engine, including one scheme not followed because it was "erroneous in the place of the great horizontal wheel" and one ground plan with a note on the required horse power in Matthew Boulton's hand.
11 drawings date from the alterations of 1795. These include coloured plans and a front view of the engine, edge view of the fly wheel and section of the boiler; reverse general view, front view and plans of the engine; working gear; boiler.
Original Portfolio or 'Book' No. 54. Catalogue of Old Engines p. 26.
For Samuel Whitbread. Brewery, Chiswell St., St. Luke, London. The concern later became Whitbread & Co., and in 1841 they erected a 30 horse boat engine close to this engine [see Portfolio 5/1054].
See also: Engine Agreements, Incoming Correspondence - (including letters from Whitbread's engineer Jacob Yallowley).
Published references: Dickinson & Jenkins, p. 142, 163, 196, 198, 356; Tann, p. 100 - ground plan of brewery with note by Boulton. |