e greatest inven- years, sailing ships have been vastly improved in size have, until now, been exerted in vain. tions of modern times, whether regarded from its and rigging ; since the art of steam navigation has been The invention to which we allude is the Macadams- humanitarian or its commercial… … Explanation.—Fig. 1 is a side elevation of the stern. of the boat, and Fig. 2 is a plan view, both showing the fins spread Out; Fig. 4 is a longitudinal section, and Fig. 3 shows the eye holes in the side of the vessel through which the chains pass. To the free edges of the fins, cc, are attached…
Water · Patented · Patents · Upper · Munn · Scientific American · Vessel · American supplement · Van depoele · Spring water · Cast Iron · Address munn · Black lead · Express money · Forward swing · Upper platform
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