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Scientific American, Vol. 39, No. 14 (1878) (1878)

leaf 4

An illustration from Scientific American, Vol. 39, No. 14 (1878), 1878, leaf 4
shearing saw teeth. It The machine shown in Fig. 3 is for a maximum load of 2 coiling mandrel. may also be used as a punch. tons, the same type being also made for 5 tons and for 10 An improved Process forthe Manufacture of Illuminating Mr. Ignatz Frank, of New York city, has patented an im- tons.… … type. insignificant it may seem, will es- Mr. John H. Kersey, of Colum- cape from all such odium if it is bus Junction, Iowa, has patented a pursued with an active brain as well Mechanical Movement for driving light machinery, such as circular saws, small thrashing machines, churns, cider mills,…

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