| Description | Independent Beam (Crank) Engines (1 item).
1020. Timperon & Dobinson, Jamaica (ZAU) and Robert & William Pulsford, Demerara (ZAT). Aug., Dec. 1814. 1 item.
Two 10 horse power independent crank engines, with 19¾ inch cylinders, 2½ foot strokes, parallel motions, [cast iron beams, cast iron connecting rods]. The power of Pulsford's engine was increased to 13 horses 1832.
Reverse side view of the engine and cross-section of the boilers, cross-section of the engine, plan of the engine and boilers, longitudinal section of boiler (4 drawings on 1 sheet). The sheet bears letter codes.
Original Portfolio or 'Book' No. 690. Catalogue of Old Engines p. 222.
For the Chesterfield Estate, Jamaica, ordered by Timperon & Dobinson of 26 Philpot Lane, London (engine ZAU), and for the Mainstay Plantation, Demerara, ordered by Robert & William Pulsford of Great St. Helens, London. Both engines were made in 1813. Engine ZAU was sold to Timperon & Dobinson in Aug. 1814, when their drawings were made. The drawings were then re-used for engine ZAT when it was sold to Robert & William Pulsford later in the year. The sheet is marked "Mark believed to be P.C. for Plantation Columbia…" alongside Pulsford's name. However the date of the drawings confirm that they were for engine ZAT for the Mainstay Plantation. In the Catalogue of Old Engines, Henry Hazleton erroneously assigns the drawings for these two engines to Portfolios 912 and 901 respectively. |