John Calley (also spelt Cawley) (1663 – May 1725, The Hague),[1] was a metalworker, plumber and glass-blower,[2] who became famous for being Thomas Newcomen's partner.
He worked with Newcomen in introducing the engine to the Midlands, operating under the patent of Thomas Savery.
[3] The engine they created was a variation on the then current technology using a combination of steam cylinders, pistons, surface condensation and the separation of parts that were usually placed together to create this new technology.
[5] However, there is also evidence that he died in The Hague in 1725, while trying to secure a foreign patent for another device.
This article about an engineer, inventor or industrial designer from England is a stub.