Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 407
ceproportionate to this increasedarea and greater than the forceof spring, thus holding the\alve open until pressure is relieved. Means mustalso be provided to relieve this pop chamber ofpressure in order to allow the valve to close promptlyand easily. This is accomplished by a… … Figure 190 Crane Pop Valve, sectional view INJECTORS, STEAM GAUGES, ETC. 40 space provided in the auxiliary valve or disc, and Dyreason of the light auxiliary spring, this pressure lifts*he auxiliary valve and allows the steam in popchamber to gradually escape, thus permitting a greaterrange in…
Locomotives
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