. Notes on torpedoes, offensive and defensive. shows in section a combination by which the two extremities(a a1) of a break in the electric cable, leading from the forkor branch in the vicinity of the charge, are introduced intoan ebonite vessel (&,) so that, when held in an upright posi-tion, a small quantity of mercury (c) placed therein wouldcomplete the circuit. If the vessel (b) were inverted themercury would fall down to its larger extremity, and thecircuit would be broken. Should the vessel only fall overon one side the same effect would be secured, for directlythe contact between the m
. Notes on torpedoes, offensive and defensive. shows in section a combination by which the two extremities(a a1) of a break in the electric cable, leading from the forkor branch in the vicinity of the charge, are introduced intoan ebonite vessel (&,) so that, when held in an upright posi-tion, a small quantity of mercury (c) placed therein wouldcomplete the circuit. If the vessel (b) were inverted themercury would fall down to its larger extremity, and thecircuit would be broken. Should the vessel only fall overon one side the same effect would be secured, for directlythe contact between the mercury and the two extremitiesof the wire (a a) ceased, the electrical circuit would bebroken, and the extremity (a) of the cable, to all intentsand purposes, effectually insulated. If an enemy, therefore,were to get possession of a ciruit-closer attached to a cable 217 arranged in this way, and cut and cast it off, under the sup-position that lie was connecting the circuit to earth andthns rendering himself secure, the falling away of th
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherwashi, bookyear1872
