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Scientific American, Vol. 56, No. 9 (1887) (1887)
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ts made by Mr. C. Ingrey with engines of makes 30 miles an hour on a 40 ft. grade easily, with a the same time, in the middle of that year, in fourteen this kind, it-appears that they consume from 2, lb. to light load, and is considered a good machine by those and seventeen days respectively, under… … CALORIC ENGINE, © 1887 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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