File:Notes on torpedoes, offensive and defensive (1872) (14582350629).jpg

Identifier: notesontorpedoes00stot (find matches)
Title: Notes on torpedoes, offensive and defensive
Year: 1872 (1870s)
Authors: Stotherd, Richard Hugh, 1828-1895. (from old catalog)
Subjects: Torpedoes Submarine mines
Publisher: Washington, Govt. Print. Off.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image:
-Bottom Flam.about 470 pounds, and its available buoyancy, that is to say5actual power of flotation, about 140 pounds. 300 andWfift hun0urnd ^ne &enera^ design and dimensions of the 250-pound casecase, construction are shown in section in Fig. 114. The body consists of A- and dimensions. ° ^ l inch best boiler-plate iron, riveted, with dished ends. Thesize and construction of the mouth-piece is similar to that Mf. 11*.
Text Appearing After Image:
Sec&ow. of the 100 pound case, so that the fuses, &c, may be inter-changeable. The whole of the iron work should be paintedtwo coats, and tested to a pressure of 30 pounds on thesquare inch, gradually increasing from within. The moor-ing chains are attached by eyes to wrought-iron bands 301 shrunk on and screwed to the body by coupling screws, asshown in the figure. The charge of 250 pounds renders itapplicable for the destruction of a vessel without absolutecontact; it may, however, be necessary,in certain cases, toemploy it as a contact mine, and when used as such, awooden jacket, as shown in the figure, must be added toprotect the case from injury by collision with friendly ves-sels. Its calculated weight, complete with charge, and with-out the wooden jacket, is about 520 pounds, and its avail-able buoyancy, (actual power of flotation,) is about 80pounds. Fig. 115 shows a plan of the bottom of this case,including the wooden jacket. Fig, 115.

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