Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 698
THE DUPLEX PRESSURE CONTROLLER ANDDOUBLE PRESSURE SYSTEM. This valve, in reality, is a part of the Brake Valve,taking place of the excess pressure or feed valve, andis connected in the main reservoir pipe near the BrakeValve, to control the brake pipe pressure. The Con- … Fig. 280. Duplex Regulating Portion of Pressure Controller. troller is in principle the same as that of a Duplex*Pump Governor with the exception of the regulating tops,which connect to the brake pipe. In no position ofthe Brake Valve handle is there danger of the brake 645 646 LOCOMOTIVE…
Locomotives
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