Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 127
ated byFigs. 41 and 42. The latter engraving shows the square-inch testvalve, which con-sists of a brassdisc provided witha pipe {A) to beconnected with aplunger (D), as inFig. 41. At B is ahardened steel valveand seat, the latterhaving knife edgesfor the valve (B) torest upon, and beingmade… … LOCOMOTIVE APPLIANCES. 119 ordinary screw plunger (D) and a test gauge at E.The gauge to be tested is attached at F. Thepieces of iron attached to the bottom of the yoke,together with the valve and yoke itself, have beenpreviously weighted, so that the valve must liftand the water escape by the…
Locomotives
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