United Mines, 1800, 1801

Cornish Mine Engines (7 items).

1312. United Mines (UM). Dec. 1800, Jan., Apr., Jun. 1801. 7 items.
6 horse power double-acting crank engine, with 14¾ inch cylinder, 3 foot stroke, parallel motion, cast iron connecting rod.

General view of the engine, plan of the engine and winding planes - reverse drawings; plan of the engine house and framing, front view of the engine house showing cylinder framing etc., cross-section of the engine house showing fly framing and general view of the engine house and framing (this drawing a copy made in Jan. 1828) - reverse drawings; winding planes, pinion wheel - reverse drawings. All the drawings bear letter codes.

Original Portfolio or 'Book' No. 42- [?]. Catalogue of Old Engines p. 304.

For United Mines. The number of the original book that these drawings were kept in is not known, as John Southern's List of Books for mid-1800 onwards is wanting, and the section for the letter U is missing from the Drawing Office Index.