Working gear parts, 1777, 1797, 1799, 1800, 1802, 1803, 1806, 1824, 1827, 1828, not...

Components and Parts of Land Engines. (34 items).

1388. Working Gear Parts. 1777, 1797, 1799, 1800, 1802, 1803, 1806, 1824, 1827, 1828, not dated. 34 items.

1777:
Letter from Thomas Dudley to James Watt dated Bristol, 26 May 1777, with a partially coloured drawing of part of working gear for an engine for a Cornish mine.

Drawing of part of working gear for a Cornish mine engine, copied from Dudley's drawing above - partially coloured drawing, not dated [1777].

1790s:
Parts of working gear for 4 horse engine - reverse drawing, Aug. 1797.

Catches for working gear for 4 and 6 horse engines - partially coloured original and reverse drawings, Nov. 1799.

1800s:
Catches for 28 to 32 horse engines, not dated [1800s].

Catches for working gear for 14, 16, 18 and 20 horse engines - partially coloured reverse drawing, Feb. 1800.

Bolt etc. for bottom of working gear for 16 to 20 horse engines - reverse drawing, Aug. 1802.

Parts of working gear for 10 to 14 horse engines - 5 large sheets of reverse drawings, Feb. 1803.

Parts of working gear for 20 horse engines - coloured drawing, May 1806.

1820s:
Part of working gear for 66 inch engines with 9 foot strokes, Feb. 1824.

Parts of working gear for 64 inch engine SW [West Middlesex Water Works], Feb. 1827.

Parts of working gear for 36 inch single-acting engine - 9 sheets of drawings, Jul. 1827.

Parts of working gear for 48 inch cylinder - 4 sheets of drawings, Jul. 1828.

Not dated:
Hand for a 24 to 30 inch engine.

4 sheets of undated and untitled sheets of drawings of parts of working gear.