| Description | Vacuum and Blowing Engines (9 items).
20 horse power double-acting engine, with 24 inch cylinder, 5 foot stroke, parallel motion.
Reverse plans of the engine and boilers and blowing cylinder, front view of the engine, cross-section of the boilers, outside view of the boiler seating; reverse sections of the engine house, plan of the engine house and boilers, drawings of the cistern (all on 1 sheet - the drawings of the engine house have been crossed out); reverse sections of the engine house, plan of the engine house and boilers (later version); part of the working gear - original and reverse front and side views; plan of Walker's new furnace showing situation of engine etc. All the drawings except the last item bear letter codes.
Original Portfolio or 'Book' No. 324. Catalogue of Old Engines p. 268.
For Joshua Walker & Co. Milton Furnace, near Rotherham, Yorkshire.
See also: Mrs. Boulton's Private Bills 1817-1818 (for fragment of the agreement)
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