In existographies, Joshua Rigley (c.1710-1785) was an English engineer, noted for []

Overview
In 1702, Thomas Savery, in his “The Miner’s Friend”, proposed that his steam engine (see: Savery engine) be employed to pump water up, from a pond or mine, to above the level or height of an overshot wheel, which then fell, turning the wheel, the rotary motion then being used to work machines in factories.

In c.1768, Rigley, using Savery’s water wheel mill proposal, and built the following factory engine at the cotton works of a Mr. Kiers in St. Pancras, London, which worked lathes and other machines: [1]

Rigley engine
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References
1. (a) Kier. (date). “Article” (Ѻ), Nicholson’s Philosophical Journal, Vol I, pg. 319.
(b) Farey, John. (1827). A Treatise on the Steam Engine: Historical, Practical, and Descriptive (pgs. 121-22). Longman.

Further reading
● Lardner, Dionysius. (1840). The Steam Engine: Explained and Illustrated – With an Account of its Invention and Progressive Improvement and its Application to Navigation and Railways; also Including a Memoir of Watt (pg. 180). Taylor and Walton.
● Thurston, Robert. (1878). A History of the Growth of the Steam-Engine (pgs. 44-45). Appleton and Company.

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