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 ...

When your steam ... of this engine into SMD context, we’d say it’s around a 2010 or so. As one would expect, the design is minimalistic, with no room for traditional bearings or valves.