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 illustration represents an improved track-laying device, which has been patented by Edward Ingleton. of the Ingleton Steam Plow Company, of Pottstown, Pa., for use on tractiou engines.