The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . which may be used to assist the raisingor depression of the craft. Four rudders are emjiloyed—one pair serving to guide the boat laterally and the otherpair vertically. The latter operate automatically. Thecrew consists of only two men—one to manage the motivemachinery and steering devices, the other to fire the tor- SUBMARINE BOATS. 123 pedoes, of which there are two of the automobile type andone of the mine type. The trials of this vessel are said tohave been very satisfactory. Franc
The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . which may be used to assist the raisingor depression of the craft. Four rudders are emjiloyed—one pair serving to guide the boat laterally and the otherpair vertically. The latter operate automatically. Thecrew consists of only two men—one to manage the motivemachinery and steering devices, the other to fire the tor- SUBMARINE BOATS. 123 pedoes, of which there are two of the automobile type andone of the mine type. The trials of this vessel are said tohave been very satisfactory. France came forward the same year as Spain and Eng-land with an electrical submarine boat designed by Zede, of the Mediterranean Engineer Corps, withthe assistance and advice of Captain Krebbs and EngineerRomazzotti. Strange to say, though all three of the ves-sels described were built in a single year in difierent coun-tries, by men who could scarcely have had any communi-cation with each other, yet the general principles of theseboats are the same. The illustration shows the Gymnote, Fig. THE GYMNOTE. as M. Zedes craft is named, in the act of diving. She isfifty-nine feet long, six feet in diameter, and has an outerskin made of riveted steel plates two and a half by threefeet in size. The propeller H has four blades, and a diam-eter of four feet ten inches, and is directly connected withthe motor M. An outlook for the steersman is providedat T, and he operates the steering-gear connecting with therudders G, G. The accumulators, weighing nearly sixtons, are stored at A, A. Man-holes are shown at O, O, 11 124 WONDERS OF MODERN MECHANISM. The motor, as well as the rest of the electrical arrange-ments, was designed by Captain Krebbs, and developsfifty-five horse-power, with a Aveight of only four thousandfour hundred pounds. Horizontal rudders or guides, as-sisted by the power of the screw, are used to submerge theboat. Hydraulic power is used for their operat
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Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectmechanicalengi
