A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 380
es stroke of pis- PORTABLE AND LOCOMOTIVE ENGINES. 355 ton, making 125 revolutions per minute, and has 9 squarefeet of grate-surface and 288 feet of heating-surface. Itweighs about 4^ tons. Steam is carried at 125 pounds. In the class of engines just described, the draught isobtained by the blast… … Fio. 11T.—The Thrashers Eoad-Engine, 1878. fuel is from 4 to 6 pounds per hour and per horse-power,burning from 15 to 20 pounds on each square foot of grate,and each pound evaporating about 8 pounds of water. Ausual weight is, for the larger sizes, 500 pounds per horse-power. These engines are…
Steam-engines
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