Watt's single-acting pumping engine, 1788.


Watt's single-acting pumping engine, 1788.
4 0 c m
actual image size: 25cm x 32cm


Engraving by Lowry after a drawing by Farey, published in 1826, of a pumping engine used for draining mines. In 1768, James Watt (1735-1819), in partnership with John Roebuck (1718-1794), invented a separate condenser engine which was patented in 1769. When Roebuck went bankrupt, Matthew Boulton (1728-1809) bought his share of the patent and Watt and Boulton worked together, from 1772 onward, forming a company in 1794.

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© Science Museum / Science & Society Picture Library

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