Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 180
Fig. 72. 281. steam-engines. — The most useful machine forperforming work by means of heat is the steam-engine,with which nearly every one is more or less familiar. Theprinciple involved in the steam-engine is somewhat similar … to that of the gas-engine, the main difference being in theuse of the expansive power of steam to actuate the pistoninstead of the explosive force of a burning gas. Water is heated in the boiler B (Fig. 73). The steamwhich is produced is confined in the boiler until the press- 1G6 HEAT [§281
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
