A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 396
hine is carried upon strong butiiexible steel springs. The steam-pressure is usually morethan 100 pounds. The puUing-power is generally about one-fifth the weight under most favorable conditions, and be-comes as low as one-tenth on wet rails. The fuel employedis wood in new countries, coke in… … FiG. 12T.—British Ejtpresa Engine. ish express-engine, 0 is the boiler, N the fire-box, X thegrate, G the smoke-box, and P the chimney. /S is a springand R a lever safety-valve, T is the whistle, Z, the throttleor regulator valve, E the steam-cylinder, and W the driv-ing-wheel. The force-pump, B C,…
Steam-engines
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