ng surface of 4,600 square feet. ROBAUGH’S LITTLE GIANT PUMP. platinum wire will become white hot, and so fire the torpedo The question of how the Alarm herself would fare against We illustrate herewith a new hand pump adapted for when the current passes. To the cradle in which the torpe- the heavy… … charge pipe. ADMIRAL PORTER'S TORPEDO SPAR. stationed at the exploding wire does not The water is raised by the upstroke of press the key. The Alarm then tries to the lower piston, through the bottom several hard hits delivered in a number of different places valve, into the lower part of the main…
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