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Scientific American, Vol. 53, No. 16 (1885) (1885)

leaf 3

An illustration from Scientific American, Vol. 53, No. 16 (1885), 1885, leaf 3
es on the post, M, opposite the gether along one side, and is made preferably of sheet side of approach, and after passing through the gate| tinuous measure from one end to theother. Thearms, metal, such as heavy tin, its edges beaded ‘or wired, or may be closed by the similar cord on that… … links, so that it can rock in the direc- GIDEON’S ORE SEPARATING MACHINE. tion of its length. The end next the drum is higher than the other. The bot- tom of the pan is formed with transverse pockets. A| grees being shown on the protractor by the pointer. spring secured to the frame and pan is so…

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