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Traction engine. Engraving of a steam traction engine (at centre right) powering a plough. Traction engines were widely used in farming and engineering until the advent of the internal combustion engine to provide power for a variety of implements. They worked by boiling water to make steam. This steam was then allowed to expand in a cylinder to drive a moveable piston. The piston's linear motion was then transferred into rotary motion by flywheels. Ploughing had traditionally used horses or oxen to provide the power. Engraving of Lord Willoughby D'Eresby's steam ploughing experiment at Grimsthorpe in Lincolnshire, England, during 1861.
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