Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 665
sage C. Themain slide valve also controls the flow of air from themain reservoir to the brake pipe. In Full automatic re--lease position air is free to pass from the main reservoirto the brake pipe through ports M and also aroundthe slide valve, as in this position the slide valve is movedforward,… … Small slide valve EV no is a cut-oif or graduatingvalve, operated by piston EV 193, and lever EV 112.In service applications it automatically laps port F, andstops the discharge of brake pipe air when the brakepipe reduction, corresponding to the service graduatingnotch in which the handle is…
Locomotives
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