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Scientific American, Vol. 39, No. 9 (1878) (1878)
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being ob- by the bevel wheels, E E, which run upon a cross shaft served, together with the weight, the data are obtained for that of a common balance, moved on the graduated arm of having a boss, G, through which the main shaft passes free- the lever, will indicate the strain upon the belt. The… … BATCHELDER’S BALANCE DYNAMOMETER. © 1878 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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