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 713
furnished with schedules B2, B2-S and B2-HP. Fig. 294 shows the quick release valve which is used 66o LOCOMOTIVE ENGINEERING with the B2-S equipment, for switch engine service, toquickly release the pressure from the driver brakecylinders. The lever safety valves shown in Figs. 292 and 293 arefor… … RV M£RVI40HV 137RV 139 CV2S4CV25SV«S9 The two lever safety valves, although similar in ap-pearance, are different in operation. In Fig. 292 thevalve RV 133 is of a pop-safety valve design, and whenforced open will remain so until the pressure beneathit has fallen to a trifle less than the force…
Locomotives
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