| Description | Steam Boat Engines (30 items).
1123. London & Edinburgh Steam Packet No. 1, City of Edinburgh (XU & XV). Aug., Sep. 1819, Mar., May, Sep., Nov., Dec. 1820, Jan., May 1821, Oct.-Dec. 1822, May, Jun., Aug. 1824, Sep. 1831, Oct. 1834. 30 items.
Two 40 horse power side lever boat engines, with 35½ inch cylinders, 3½ foot strokes. Power increased to 50 horses 1834.
Cross-sections of the boat, one marked "Scheme for cabin over boiler" and one showing engines and paddle wheels; sketch side view of 40 horse boat engine.
Reverse section and plan of boiler (partially coloured, copy made in 1824); lower and upper headstocks - reverse drawings; upper headstock frames - partially shaded original drawing; side view and plan of engine - reverse drawing; part of lower headstock - original drawing; cross-section of boat and engines marked "see another drawing"; cross-section of the boat and engines (partially coloured); sketches of spur wheels, plummer block (2 small sheets stuck together), press copy of sketch of spur wheels with sketch of crank and paddle shaft on the same sheet (these 2 drawings are marked "Hampden Steam Vessel"); sketch of the top of the boiler; printed "Plan of the Cabins of the City of Edinburgh steam packet"; smaller printed plan including plan of ladies' servants' cabins.
Also the following later items: sketch section of the boat and notes on experiment, 26 May 1821 (in William Creighton's hand); new paddle wheels - original and partially shaded reverse drawing, Jan. 1822; sketch of scheme for addition to the boiler, Oct. 1822; sheet of partially coloured sketches and memoranda of items ordered, Nov. 1822; "sketch showing the arrangement of the pipes to the two pumps upon adding new coal boxes…", "sketch of 7 cast iron pipes and a bottom for the hand pump…", "sketch of 5 cast iron pipes, a cock and a bottom and clack for the extracting pump…", Dec. 1822; sketch "scheme for boiler of 95 horses power", not dated [circa 1824?]; partially coloured plan and section of boiler, May & Jun. 1824; plan and section of boiler, Aug. 1824 - original and reverse drawings (re-used in Sep. 1831); working gear for 50 horse belted cylinders with separate slide valves - partially shaded original and partially shaded reverse drawings, press copy drawing of plummer block for small end of working gear, Oct. 1834. Several of these drawings bear letter codes.
Original Portfolio or 'Book' No. 728. Catalogue of Old Engines p. 312.
For the London & Edinburgh Steam Packet Co. The boat was initially referred to as "Leith Packet No. 1". The City of Edinburgh is referred to in The Engineer, 1866, p. 48, and in T. Tredgold, The Steam Engine, p. 317.
See also: 4/95 (Engine Order Book No. 9).
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