. Notes on torpedoes, offensive and defensive. rrent and the height from thebottom at which the mine is to float. At first, considerabledifficulty was experienced in placing the anchors at a correctdistance apart, but by the following method small chargeshave been laid down successfully and have maintained theirpositions when so placed. The following arrangement, designed by Lieutenant Chad-wick, E. E., was tried in the river Meclway during theautumn of 1867, and moorings with a charge attached werethereby successfully lowered into position without muchdifficulty. A derrick, Fig. 17, was rigge
. Notes on torpedoes, offensive and defensive. rrent and the height from thebottom at which the mine is to float. At first, considerabledifficulty was experienced in placing the anchors at a correctdistance apart, but by the following method small chargeshave been laid down successfully and have maintained theirpositions when so placed. The following arrangement, designed by Lieutenant Chad-wick, E. E., was tried in the river Meclway during theautumn of 1867, and moorings with a charge attached werethereby successfully lowered into position without muchdifficulty. A derrick, Fig. 17, was rigged at each end of a boat, thedistance between the ends being that wrhich the mooringswere to have when on the bottom. To these the mooring-anchors were suspended, being attached to the ropes bynippers which released them when on the bottom. Thecharge itself was made to sink by means of a heavy saddle,Fig. 18, placed over it, and thus its upward tendency did and aft. 70 not draw the moorings together; (a) shows the mine, (b) theweighted The length of the mooring-eables haviDg been previouslyadjusted according to the depth of water, when the mooringswere placed on the bottom the saddle was drawn up, andthe charge rose into its proper position.
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherwashi, bookyear1872
