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 849
y q connects the brake-cylinder port r withport b, leading to the safety valve. This safety valve,known as the E-7 (see Figures 348 and 349), is ordina- 792 LOCOMOTIVE ENGINEERING rily set for 62 lbs. In an emergency application, however,the safety valve is entirely cut off from the cylinder,… … FIG. 354. SERVICE-LAP POSITION of air from the auxiliary reservoir to the brake cylinderhas reduced the pressure on the reservoir side of thetriple-valve piston slightly below that remaining on thebrake-pipe side, the pressure in the brake pipe, assisted bythe graduating spring, will move the…
Locomotives
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