| Description | Independent Beam (Crank) Engines (10 items).
838. British Plate Glass Co., Ravenhead (JK). Jul., Oct., Nov. 1844, Apr. 1846. 10 items.
38 horse power independent crank engine, with 31½ inch cylinder, 3 foot stroke, parallel motion, [cast iron beam, cast iron connecting rod].
Partially coloured plan of the engines and boiler (this plan also shows the existing Nasmyth engine); plans and elevations of steam pipes etc. - partially coloured original and partially coloured reverse drawings; sections and plan of the boiler and seating - coloured original and reverse - coloured original and reverse drawings; throttle valve gearing, governor wheels and stand etc. - partially coloured reverse drawing; sketch of governor wheels and stand; press copy sketch of throttle valve gearing; memorandum about the engines at Ravenhead. All the drawings except the first and last 2 items bear letter codes.
Also plans and elevations of existing and proposed arrangement of steam pipes, Apr. 1846 - partially coloured reverse drawing.
Original Portfolio or 'Book' No. 953. Catalogue of Old Engines p. 236.
For the British Plate Glass Co. Ravenhead, near Prescot, Lancashire. This engine was erected alongside an engine made by James Nasmyth which Boulton Watt & Co. altered [see Portfolio 5/527]. The Catalogue of Old Engines erroneously gives the power of this engine as 30 horses. |