Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 179
AM ENGINES mark. The engine is then turned to the crank end dead center,as shown in Fig. 99, and with the tram in the mark on the valvechest, another mark which is also made permanent by a punchmark, is made on the valve stem. The valves may now be setat any time without removing the steam chest… … Fig. 98. Types of Slide Valves.—The form of slide valve which has beenillustrated in the previous discussion is known as the plain or DsHde valve, and it has been used in this discussion on account ofits simplicity. This form of valve is widely used on the cheapergrades of slide valve engines; but…
Steam-engines
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