| Description | Steam Boat Engines (5 items).
1213. William Hodgson & Co., Lake Ontario Steamer (NN). Jan., May 1815, 5 items.
50 horse power vertical boat engine, with 38 inch cylinder, 4 foot stroke.
"Sketch of the framing and boilers for boat engines" - cross-section of boat, longitudinal section of boiler and framing, plan of engine and boilers - 3 partially coloured reverse drawings on 1 sheet (these drawings were also used for the steamer ordered by Gillespie Gerard & Co. [see Portfolio 5/1214]); plan of the engine and boilers and shafts etc., side view of the engine one boiler, end view of the engine and one boiler - reverse drawings; small sketch plan of boiler (also used for the steamer ordered by Gillespie Gerard & Co. [see Portfolio 5/1214]). All the drawings except the first and last items bear letter codes.
Original Portfolio or 'Book' No. 682. Catalogue of Old Engines p. 310.
For Lake Ontario, Canada. William Hodgson & Co. of Sheffield were the agents. This was an unusual early type of boat engine first used for John Molson's Malsham in 1813-1814 [Portfolio 5/1240b], and used for this boat and the Lake Ontario steamer ordered by Gillespie Gerard & Co. [see Portfolio 5/1214]; the drawings for the two Ontario engines were placed in the same book. The piston drove two cranks and fly wheels by means of a cross-bar and long side rods. It was also connected to an air pump beam. The Catalogue of Old Engines erroneously describes this as a side lever engine.
See also: 4/94 (Engine Order Book No. 8). |