in diameter, as seen at e, Fig. 2, so that itcannot slip out. The brass nipple, /, is screwed intothe lower part of the plug, and has the friction tube,h, inserted in it: this is surmounted by a circularpiece of wood, g. The leather washer, /, makes atight joint at the bottom of the plug flange.… … up adrift before it had exploded. Whether it wouldhave injured the iron-clads is a matter of somedoubt; but there is no question that a wooden shipwould have had a hole stove in her ride by this tor-pedo if suffered to explode as designed. IRON RAFTS FOR HARBOR DEFENSE. The latest English papers…
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