Thomas Newcomen (February 1664 – 5 August 1729) was an English inventor.[1] He made the first practical steam engine for pumping water, the Newcomen steam engine.
Flooding in coal and tin mines was a large problem. Newcomen was trying to improve ways to pump out the water from the mines. His ironmonger's business specialised in tools for the mining industry.
His first engine was not very efficient, and used a lot of coal. The Watt steam engine, was much more fuel efficient. Watt and his partner Matthew Boulton got substantial royalties because their machines saved so much on fuel bills.