A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 92
udebeing found to give the most perfectdistribution of the water and thepromptest condensation. Smeaton covered the lower sideof his steam-pistons with woodenplank about 2J inches thick, in orderthat it should absorb and waste lessheat than when the iron was directly exposed to the steam. Mr.… … Fie. 22.—Boiler of NewcomenBEngine, 1768. 68 THE STEAM-ENGINE AS A TKAIN OF MECHANISM. feeding the boiler, and the injection-water was hard, Mr.Smeaton applied a heater, immersed in the hot-well, throughwhich the feed passed, absorbing heat from the water ofcondensation en route to the boDer. Farey…
Steam-engines
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