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Scientific American, Vol. 33, No. 10 (1875) (1875)

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An illustration from Scientific American, Vol. 33, No. 10 (1875), 1875, leaf 0
hearing, and bending. The jaws are just what we should have expected. The bones of its fore weighing 500 lbs., capable of punching }x } of an inch, and constructed to accommodate blocks which are interchangea. legs of astounding strength and breadth, furnished with to cut off 4of an inch round… … bearing on eith- tions in various er side of the bones, or sets of cam, which pre bones, in ac- vents the latter bending. A hand wheel is attached to raise and lower the slide for the purpose of arranging the punches is never departed from, only modified. See, for example, The jaws vary in depth…

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