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Scientific American, Vol. 80, No. 17 (1899) (1899)
leaf 3
or. the drill in section, its simple and substantial con- Each 6-inch drill consumes about 6 horse power de- struction will be understood. The different parts of livered to the generator pulley. This is in marked con- the drill interlock, and are held together by two side trast to the power… … not been made in England. spring, %, which closely resembles a car © 1899 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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