Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 824
nder pressure may be released in a series ofsteps, or graduations, and the operation is known as grad- TYPE L TRIPLE VALVE 795 uated release, and may be repeated as desired, until thebrake-pipe pressure has been fully restored, and the ex-haust of air from the brake cylinder completed. Theamount of… … FIG. 355. GRADUATED-RELEASE-LAP POSITION EMERGENCY. When the brake-pipe pressure is reduced suddenly, orits reduction continues to be more rapid than that inauxiliary-reservoir pressure, the piston is forced to theextreme left and compresses the graduating spring. Theparts are then in Emergency…
Locomotives
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