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James Watt, caricature

James Watt, caricature

C015/6706

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Credit

GARY BROWN / SCIENCE PHOTO LIBRARY GARY BROWN / SCIENCE PHOTO LIBRARY

Caption

James Watt (1736-1819). Caricature of the Scottish engineer and inventor James Watt. Watt made numerous practical improvements to the steam engine of his day. By 1790, the superior Watt steam engine had completely replaced the older Newcomen variety. His inventions included the double acting engine, where the piston is made to both push and pull (1782), and the pressure gauge (1790). He also adopted the centrifugal governor to regulate the speed of a steam engine and coined the term 'horsepower' to describe a unit of energy.

Release details

Model release not required. Property release not available.

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