Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 409
d-denly without a loud pop orwithout loss of boiler pressure.The Kunkle Lock-TJp Pop Safe-ty Valve and Muffler Combined. Figs. 194 and 195.It relieves itself of all over-pressure, without raisingabove what it is set at; will close down upon itsseat without losing any of the desired or… … Figure 192Crane Muffled PopValvesectional view INJECTORS, STEAM GAUGES, ETC. 403 center of the top plate on top of the spring-, and islocked with a key, and a jam-nut holding it firmly tois place, which makes it perfectly safe from beingtampered with.
Locomotives
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