the steam engine was used extensively
James Watt, in 1781, patented steam engine that produced continued rotary motion and the power about 10 hp. It was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum.he centrifugal governor was adopted by James Watt for use on a steam engine in 1788 after Wattâs partner Boulton saw one at a flour mill Boulton & Watt were building. The governor could not actually hold a set speed, because it would assume a new constant speed in response to load changes.