| Description | Steam Boat Engines (49 items).
1124. London & Edinburgh Steam Packet No. 2, James Watt (WI & WK). Oct., Dec. 1820, Feb., Apr.-Jul., Dec. 1821, Jan.-Mar., Nov. 1822, Sep. 1823, Jan., Sep. 1827, Feb. 1828, Feb. 1831, Jan., Feb. 1834. 49 items.
Two 50 horse power side lever boat engines, with 39½ inch cylinders, 3½ foot strokes. Power increased to approximately 60 horses 1827.
Sketch cross-section of the boat and side view of engine; sections of the boat at the centre of the paddle shaft and aft end boiler, sent by Mr. Wood.
Section and plan of the boiler; plans and sections of the boiler and chimney - coloured original and coloured reverse drawings; cross-section of the boat (partially coloured), side view of paddle case framing and gangway wale (partially coloured), plan of the engine sleepers, plan of the engine deck, plan of the engine room floor - reverse drawings (made in the London office); shaft plummer blocks, spur wheels (this drawing was made in 1831 and also shows the wheels as strengthened in 1822 and 1830) - partially shaded reverse drawings; side view of 50 horse boat engine and boiler - coloured reverse drawing; waste pipes - partially coloured reverse drawing; hand pump - partially coloured original and partially coloured reverse drawings; plan of the engines - coloured reverse drawing; upper headstock frame - partially coloured original and partially coloured reverse drawings; fire irons for 40 and 50 horse engines - shaded drawing; small sketches of plummer block, wheels, rods, pump [?]; small printed plans of the upper and lower decks. Many of these drawings bear letter codes.
Also the following later items: sketch of headstock framing - partially shaded drawing, Jan. 1822; sketch for new paddle wheels - drawing made in the London office, Jan. 1822, marked "No. 2"; section of the boat, Feb. 1822; paddle wheels and shafts - original and reverse drawings marked "alteration as intended"; section and side view of the boat showing the form of the girdling, Mar. 1822; extracting pump for taking out the bilge water - shaded drawing with sketch attached, and sketches of sundry articles wanted --partially coloured drawing, Nov. 1822; midship sections with and without the girdling, Nov. 1823; plan of the boiler - coloured drawing made in the London office, Sep. 1824; plan and section of the boiler - original and reverse drawings made in the London office, Jan. 1827; note to the Foundry re order for new cylinders, Sep. 1827; sketch of boiler uptake, Feb. 1828; inner end plummer blocks for raising paddle shafts 6 inches - original drawing with note of order attached and reverse copy, Feb. 1831; upper headstock frames - shaded drawing, Jan. 1834; cross-stay for headstock - original and reverse drawings made in the London office, Feb. 1834. Several of these drawings bear letter codes.
Original Portfolio or 'Book' No. 734. Catalogue of Old Engines p. 312.
For the London & Edinburgh Steam Packet Co. The boat was initially referred to as "Leith Packet No. 2". She is referred to in T. Tredgold, The Steam Engine, p. 317. Note that in 1852 James Watt & Co. supplied engines for a navy boat also called James Watt [see Portfolio 6/48)].
See also: 4/95 (Engine Order Book No. 9).
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