| Description | Bell Crank Engines (5 items).
6 horse power bell crank engine, with 16 inch cylinder, 2 foot stroke.
Reverse plan and sections of the engine and boiler, framing, engine platform etc. (4 drawings on 1 sheet); letter from Richard Brown Jr. dated Derby, 13 May 1802, with description and drawings of their intended building; letter from Richard Brown Jr. dated Derby, 6 Jun. 1802, with sections of engine house showing fly wheel, pulley wheel, boilers etc.; letter from Richard Brown Jr. dated Derby, 7 Jul. 1802, with sketch of shaft; rough sketch plan of the premises with note on the machinery to be worked. The reverse drawings bear letter codes.
Original Portfolio or 'Book' No. 480. Catalogue of Old Engines p. 252.
For Brown & Son. Stone works, Derby, Derbyshire. The engine powered saws, lathes etc.
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