| Description | Vacuum and Blowing Engines (33 items).
Engine with 54 inch cylinder, 8 foot stroke, parallel motion, [cast iron beam].
Coloured reverse plan and longitudinal section of the engine house and blowing cylinder; reverse plan of the engine platforms, longitudinal section and plans of the engine house and platforms, transverse sections of the engine house; 9 foot blowing cylinder - reverse drawing; nozzles - partially coloured original and partially coloured reverse drawings; working gear - coloured original and coloured reverse front and side views; cylinder bottom; hot and cold water pumps, main plummer block - coloured original and reverse drawings; air pump and condenser - partially coloured original and partially coloured reverse drawings; blowing cylinder - partially coloured original drawing; steam and feed pipes - partially coloured original and partially coloured reverse drawings; working gear - coloured original and coloured reverse front and side view marked "as made"; details of working gear components - partially coloured original and partially coloured reverse drawings; emptying pipe - original and reverse drawings. All these drawings bear letter codes.
Also the following uncoded items: draft section and of engine platforms - original and reverse drawings; catch pin at end of beam; working gear handles; sketch of globular boiler marked "brought to Soho by Mark Rollason 19 Jan. 1847"; plan of boilers and engine house marked "Thomas Wilkinson 4 Feb. 1848"; sketch section of part of boiler marked "brought to Soho by Jos. Careless 25 Oct. 1848".
Original Portfolio or 'Book' No. 979. Catalogue of Old Engines p. 272.
For Ralph Sneyd. Silverdale Iron Works, near Newcastle upon Tyne.
See also: Portfolios. 6/7 (cylinder), 6/11 (blowing cylinder).
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