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Scientific American, Vol. 88, No. 23 (1903) (1903)
leaf 7
of maximum being 280 pounds; and the 1 to 1 leverage had The car was fixed so as to prevent its moving back- wrought iron. The frame is 6 feet in length. The increments of 28 pounds up to a total of 580 pounds. ward, and a predetermined load was fixed to a wire end plates are drilled with three… … hundredweight in addition to der, then through the connecting © 1903 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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