Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 280
be readily understood bv inspoction of Fig. 116, 238 TORPEDOES. which represents also a similar smaller reel for the line attached to thesafety key. Leather straps, sprinkled with rosin to increase the friction,encircle the drums of the reels, and can be made to embrace them tightlyby means of… … Fig. 117.—Harveys Torpedo. the handles. When the torpedo is ready for action and has been launched,a suitable length of tow-line, which is marked with knots every ten fathoms,is allowed to run off its reel, while the safety key-line is at the same timerun off the small reel, care being taken to…
Inventions
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