Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 191
668. PORTABLE FIRE EXTINGUISHER.—The tank is nearly filled with a saturated solution ofcarbonate of soda and water. The glass cup is filledwith acid and sealed by the cap. To use it, turnthe tank quickly, top down, when the ball falls andbreaks the acid cup, producing pressure by the libera-tion of… … 669. FIRE EXTINGUISHER.—The tankis filled with a saturated solution of bicarbo-nate of soda in water to five-sixths of its capac-ity. A small glass bottle filled with sulphuricacid, with a loose lead stopper, is placed in acage at the top of the tank, and the cover ofthe tank fastened. To use, turn…
Mechanical movements
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