| Description | Crank Engines. (9 items).
268. Josh. & Thomas Foster, Bromley Hall (JF). Oct. 1799, Feb. 1800. 9 items.
4 horse power double-acting crank engine, with 12? inch cylinder, 3 foot stroke, parallel motion, cast iron connecting rod.
Coloured original and reverse general view of the engine, coloured original plan and sections of the engine and boiler (NB - not all the coloured originals are present); reverse plan and sections of the framing and cistern; working gear - coloured original drawing; letter from Richard Dayus postmarked 7 Oct. 1799, with plan and elevation of the engine house and horse wheel. All the drawings except the last item bear letter codes.
Parallel motion - reverse drawing. This drawing was used as a standard drawing for parallel motions for 4 and 6 horse engines; it includes drawings of all the component parts and various sets of dimensions. It was originally drawn in Jul. 1797, coded DHJ and is described by the Drawings Day Book as "Parallel Motion 4 5 horse." Two originals were made and sent both to the Manufactory and the Foundry. It was re-drawn in Dec. 1799, coded EVY and is described by the Drawings Day Book as "Parallel motion 4 6 horse". The original of this version was given to David Thompson at Soho. It was then used as the basis for the parallel motion drawings for the following engines, each drawing being given a new code: EWV J. & T. Foster 4 horse, 8 Feb. 1800; FBG S. Rendle 4 horse, 9 Apr. 1800; FSI Bryson & Son.
Original Portfolio or 'Book' No. 351. Catalogue of Old Engines p. 84.
For Josh. and Thomas Foster, Bromley Hall, near Stratford-le-Bow. |