In 1765, Scottish inventor James Watt (1736–1819) suggested using a separate condenser in the steam engine, lessening the consumption of steam and fuel in fire engines. With the invention of the double-acting machine, in which the piston pushed as well as pulled, “Watt’s engine” was nearly complete. (M 39657) _ _.
Discovered on 15-4-1996 in La Silla by Elst, E. W.