I is a crank secured by a bar or hub to 1 the valve stem, and connected by a rod to the ordinary eccentric on the main crank shaft of the engine. K is the escape pipe. When the steam is admitted ...

The steam passages of the slide valve are closed earlier or later, according to the velocity of the piston, by the action of this governor valve, to regulate the speed of the engine. The governor ...

To make such an engine work, valves are required to allow steam to flow into alternating sides of the piston to let it reciprocate continuously. A simple slide valve is used, allowing steam to ...

American inventor George Corliss receives a patent for the valve gear that leads to the Corliss steam engine, which has four valves for each cylinder and steam and exhaust valves at each end.