Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 580
port a in reg-ister with the lower part of b^ and port c is turned toregister with port e, and thereby allows all the air inthe brake cylinder to escape to the atmosphere. Therefore if the handle of the retainer is kept turneddown the engineer can release the brakes from theengine, but if the… … AmerUsan HaotanUlb X Figure 237Pressure-Retaining Valve 5^ LOCOMOTIVE ENGINEERING
Locomotives
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