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Scientific American, Vol. 31, No. 25 (December 1874) (1874)

leaf 7

An illustration from Scientific American, Vol. 31, No. 25 (December 1874), 1874, leaf 7
cured to the corner ends of the jaws are driven into the wood on each side deck. This is 12 feet in length and terminates above in a of the spike, and then, if hinged, further compressed by the wooden ball, the forward side of which is painted sea green, becket, B. The head of the grapple passes… … by bars inserted in the sockets in the broad portion of the davits, as shown. Nothing remains but to lower the machine of the screw, D. By turning the latter, .he grapple and a screw. Upon the middle part of the outer shank is formed into the water by the falls. The whole operation, we are with it…

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