| Description | 4 horse power, single-acting sun & planet engine, with 15 inch cylinder, 4 foot stroke, parallel motion. New boiler added in 1788.
Includes reverse general view and plan of the engine; framing; components of the parallel motion; condensing vessel "to be made according to a pattern at Soho of Mr. Goodwin's engine", Dec. 1785; working gear, blocks, nozzles, wheels, ends of piston rod, fly wheel; "rotative motion" [sun & planet wheels], shafts, blocks etc.; parallel motion; cistern; sections of boiler and seating, grate bars; section and plan of the mill and rough sketch showing water wheel; small sheet of calculations; incomplete letter from Timothy Harris to James Watt dated 9 Nov. 1785; small press copy note by Watt about the bucket, stuffing box gland etc.
Also drawing of rotative wheels, dated 24 May 1787.
7 items date from 1788. These include coloured original and reverse front view of the engine and framing, plans and sections of the boiler and framing; letter from James Law to John Roberts dated Nottingham, 19 Sep. 1788.
Original Portfolio or 'Book' No. 64. Catalogue of Old Engines p. 52.
For Timothy Harris of Bridge St., Blackfriars, London. Cotton mill, St. Mary's, Nottingham. By 1787 the concern had become Harris Harris & Plant.
See also: Engine Agreements, Incoming Correspondence.
Published references: Dickinson & Jenkins, p. 164. |