Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 307
m from its passage into the low-pres-sure end of steam chest. Under these conditions nosteam can reach the low-pressure cylinder, except fromthe exhaust of the high-pressure cylinder. Drifting. When drifting or not working steam, theby-pass valves B, B, in Fig. 138, being in a* verticalposition,… … Figure 139 COMPOUND LOCOMOTIVES 301 tion, and are held to their seats by the steam chestpressure when working steam. When running withclosed throttle, the by-pass valves (Fig. 139) are raisedfrom their seats by any pressure on the lower side,assisted by the spring under valve. With the valvesraised…
Locomotives
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