Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 312
by burning coal or wood, oil or gas. It is a remarkably goodsteam engine which yields as mucffas one tenth as a working div-idend. Gas engines have sprung into wide popularity becausethey yield larger results, in extremely favorable cases reachingthirty per cent. A heat engine, of any type, has its… … 264 NATURE AS TEACHER that if an engine begins work at 920 ° Fahr. (13800 absolute), andthe working substance is lowered in temperature by its action inthe machine until it falls to 4600 Fahrenheit (9200 absolute), theengine has a gross efficiency of one third. Economy dependsupon employing a…
Inventions · Inventors
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