| Description | Crank Engines. (20 items).
247. John Christian Curwen, Workington, No. 4. Dec. 1793-Feb. 1794. 20 items.
40 horse power double-acting crank engine, with 33 inch cylinder, 6 foot stroke, parallel motion.
Reverse general view of the engine showing pump beam, reverse plans and sections of the engine; reverse plan and sections of the framing, pump beam and cistern; reverse plans and cross-sections of the round boiler; connecting rod and crank - 2 different sheets of drawings, 1 reverse and 1 coloured; fly wheel, gudgeons, glands, pins, plummer blocks etc. (all reverse); pumps - original and reverse drawings; connecting rod - reverse drawing; parallel motion - reverse drawing mis-dated as Jan. 1793; working gear - coloured reverse front and side views; small undated section of the beam; ground plan showing old engine, pit, winding gear etc. marked "This came with Mr. Udale's letter 23 Dec. 1793"; valves and pipes [?], marked "Came 14 Jan. 1794 with Mr. Udale's letter"; drawing of ? [appears to be rolling apparatus - from another engine?]. All the drawings except the last 3 items bear letter codes.
Original Portfolio or 'Book' No. 210. Catalogue of Old Engines p. 290.
For John Christian Curwen (formerly John Christian). Colliery pumping and winding [?] engine, Lady Pit, Chapel Bank. Workington. The engine was connected to the pump by means of a pump beam, which was worked by the main beam. Curwen's third engine, a 17 horse power sun & planet engine [see Portfolio 5/78] was also erected on the Lady Pit. Hazleton listed this engine among the pumping engines rather than the crank engines. |