Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 171
he inside, as shown inFig. 73, the movement of the valve is reversed, as isthe method of setting also. As it is very essentialthat the packing rings at each end of a piston valve besteam-tight, a certain element of friction is introducedin this manner. In the larger number of cases wherepiston… … Figure 72 the exhaust steam. Another advantage is that ofhaving only exhaust pressure against which to packthe valve rods, and make the joints for the heads ofthe valve chamber. In taking charge of an engine having piston valves,an engineer should always first look her over andnote the positions of…
Locomotives
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
