A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 379
0 to20 square feet per horse-power. The boilers are made verystrong, to enable them to withstand the strains due to theattached engine, which are estimated as equivalent to fromone-tenth to one-fifth that due to the steam-pressure. The 354 THE STEAM-ENGINE OF TO-DAY. boiler is sometimes given even… … One of these engines, of 20 horse-power, has a steam-cylinder 10 inches in diameter and 18 inches 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…
Steam-engines
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
