Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . der and the saddle casting. The valve,which is double and hollow, admits steam to the high-pressure cylinder, and at the same time distributes thehigh-pressure exhaust from the front end of the high-pressure cylinder to the back end of the low-pressurecylinder or vice versa, as the case may be, without thenecessity of crossed ports. As shown in the accom-panying diagram, Fig. 147, A is the high-pressurevalve by which steam is conducted
Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . der and the saddle casting. The valve,which is double and hollow, admits steam to the high-pressure cylinder, and at the same time distributes thehigh-pressure exhaust from the front end of the high-pressure cylinder to the back end of the low-pressurecylinder or vice versa, as the case may be, without thenecessity of crossed ports. As shown in the accom-panying diagram, Fig. 147, A is the high-pressurevalve by which steam is conducted from the live-steam openings through external cavities B and B tothe high-pressure cylinder. The exhaust from thehigh-pressure cylinder passes through the opening C 312 LOCOMOTIVE EXGEST RING to the steam chest, which acts as a receiver; D is thelow-pressure valve connected to the high-pressurevalve by valve rod E. This valve in its operation issimilar to the ordinary slide valve. The outside edges!control the admission, and the exhaust takes placethrough the external cavity F. 7- s:£ .^ econnects the live-steam ports of the high-pressurecv.:n:e:. ; 3 u*&r/# vm Cc* FlGTJBE 148 The Cross Compos cep:: p - - der is contr ... - _. The cross compound locomo-linders, one on each side, with an inter-: arranged that the engineer can workler simple or compound. the -=. s:r:. ±-g:zt. pressure ::Imitted to the low-pressure cylin-/ an automatic reducing val/e in COMPOUND LOCOMOTIVES 3*3 such a manner that it shall bear the same ratio to thepressure of steam admitted to the high-pressure cylin-der as the volume of the high-pressure cylinder bearsto the volume of the low-pressure cylinder. Unequalstrains are thus avoided. As previously stated, a com-pound locomotive should never be worked as a simpleengine, except in starting a heavy train, or whenthere is danger of getting stuck on a heavy upgrade. The fiVldwinTwo-Cylinder Com-pound. The es-sential features ofthis de
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlocomot, bookyear1916
