| Description | Vacuum and Blowing Engines (23 items).
Double-acting engine, with 44 inch cylinder, 8 foot stroke, parallel motion.
Coloured original and reverse general view of the engine and blowing cylinder and front view of the engine (the reverse copy has a coloured plan of a house and fields on the back marked "Hog Fecit"), plan of the engine and boilers and regulating vessels and blowing cylinder, plan of the cylinder and boiler tops; reverse general view and plan of the engine house and framing and blowing cylinder and regulating vessels, sections of the engine house, drawings of the cistern, plans above the spring and cylinder beams; reverse plans and sections of the air pump and condenser; working gear - reverse front and side view (also used for drawings FNA Clyde Iron Works and FRR Hill & Co.); catches - reverse drawing; parallel motion - coloured original drawing; plans and sections of the cylinder and piston, cylinder lid and bottom plate - reverse drawings. All these drawings bear letter codes.
Also the following uncoded items: coloured general view and plan of engine and blowing cylinder (these drawings show an engine of an older style of construction with chain connections between the beam and both the steam and blowing cylinders); coloured section and plan of large round boiler; sheet of plans and sections of 2 round boiler; sketch plan and elevation of the premises showing situation of 2 existing engines, with 48 inch and 51½ inch cylinders; plan of the premises showing existing engines, boilers, blowing cylinders, furnaces etc.
Original Portfolio or 'Book' No. 385. Catalogue of Old Engines p. 270.
For the Lightmoor Co. Lightmoor Iron Works, near Wellington, Shropshire. The List of Engines made at Soho calls the concern Homfray Addenbrooke & Co. Note that the place is frequently spelt "Lightmore". This engine does not appear in the Engine Order Books.
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