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Scientific American, Vol. 68, No. 19 (1893) (1893)
leaf 7
at adhesion polarity, a magnetic belt, rope or chain being used to 0 of the belt to the pulleys, thus permitting large THE CANNED FOOD INDUSTRY. complete the magnetic circuit between the two pulleys powers to be transmitted through relatively small At the oyster-canning establishments in Baltimore,… … vided with a magnetic R. previous twelve months, © 1893 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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