Inhaltsangabe
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1877 Excerpt: ... the angle in place with the left-hand, the ball is passed twice over the rope and drawn as tight as possible with the right, thus binding the turn. A small loop is now made by passing the ball twice under the rope. The marline-spike, or if preferred a cylindrical iron rod, is thrust through this loop; by revolving it round and round the rope, and regulating the tension by passing the ball over it, a close even wrapping is applied over the unstranded wires; and the end below the thimble is thus perfectly secured. The third and first stops are removed successively as they are reached by the wrapping. After extending the latter well up to the point of the thimble, any part of the ball remaining is cut off; and the two ends of the annealed wire are secured by twisting them together, and hammering them down out of the way. It only remains, after removing the second stop, to secure the short ends of the unstranded wires, by bending them up over the wrapping and hammering them down so closely as to leave no sharp point to chafe the insulated cable. The wrapping thus made should be at least six inches long; if it be a foot long, the rope will part before the thimble will yield. DRILLS WITH SINGLE MINES. In actual war, mines will usually be planted from steam tugs; although rafts, made from two pontons or large boats, may be employed in slack water. What particular kind of craft should be provided, will depend upon the means at hand, and upon the character of the channel; and the selection will rest with the Engineer officer in charge. No peculiar pattern is deemed necessary. At the Torpedo School, a steam-launch has been especially equipped for drill purposes, and to serve as a model in appliances. Her size, which permits her to be removed from the water in the win...
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