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Scientific American, Vol. 31, No. 13 (September 1874) (1874)

leaf 7

An illustration from Scientific American, Vol. 31, No. 13 (September 1874), 1874, leaf 7
of the bent ratchet bar, shown at- tached to the rear side of the standard, A. In using the jack, the free end of the lever,C,is raised and the machine is moved forward until the axle of the wagon rests in one of the notches of bar, D. The lever is then carried down until the load is raised to the… … jacket so arranged that a constant supply of fresh air may Patented through the Scientific American Patent Agency, suspended. By slightly pressing down the lever, C, the hook be continuously brought into contact with greatly expanded July 14, 1874. For further particulars address Daniel Lor-…

Patents · Improved · Inches · Consists · Iron · Scientific American · Water · Double eye · Sliding block · Cast Iron · Grand cash · Object glass · Feet long · Large number · Air cases · Side air

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