Practical instructor and reference book for locomotive firemen and engineers: a practical treatise .. (1911)
Lockhart, Charles F. (Charles Fulton), b. 1872 · New York, The Norman W. Henley publishing co. · leaf 165
qualized or balanced. Thereis no pressure except exhaust steam in chamber E andpiston 77, being balanced, steam in chamber A forcespiston 79 to the left, permitting steam to flow from A to Con top of piston 65. 496. The air end of the pump is operated by means ofthe piston rod 65 and air piston 66.… … A //?WSCHARCe Fig. 39.—o|-inch Air Pump, Showing Main Valve, EIGHT AND ONE-HALF INCH COMPRESSOR 163 The atmospheric pressure now lifts the lower supplyvalve 86b, rushing into the cylinder to supply the vacuumcreated when the piston starts on the return stroke. Theair thus drawn into the cylinder…
Locomotives
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