Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . ation. The common safety valve has much to answer to the great fric-tion of its parts, it willnot open until the pres-sure is above what it isset at; it will continueto blow after the pres-sure of the steam hasfallen far below thepoint of opening; itwastes large quantitiesof valuable steam inoperation. There areother grave faults, butthese stated are suffi-cient to condemn it. Instead of standing guard overthe boiler, a sentr
Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . ation. The common safety valve has much to answer to the great fric-tion of its parts, it willnot open until the pres-sure is above what it isset at; it will continueto blow after the pres-sure of the steam hasfallen far below thepoint of opening; itwastes large quantitiesof valuable steam inoperation. There areother grave faults, butthese stated are suffi-cient to condemn it. Instead of standing guard overthe boiler, a sentry has to be set over it, and should heby accident, ignorance or negligence, not properly at-tend to his duties, the boiler is without any safeguardwhatever. Hence the importance of any device whichshall reduce the danger to a minimum. A safetyvalve which is automatic, certain in its action, prompfin opening and closing at the required point of pres-sure, and which can be fully relied upon to relievethe boiler under all circumstances, is what is Crosby Locomotive Pop Safety Valve. Fig. of the Valve. The valve proper B B rests. Figure 182sectional viewAmerican Pressure Gauge INJECTORS, STEAM GAUGES, ETC 393 > H W o U W d o i»do M 02 H QH O d GO HHI 8 oc 00
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlocomot, bookyear1916
