. Practical electricity in medicine and surgery. es should also be portable, as many operationsrequire to be done at the patients home. It is essential, how-ever, that efficiency of action shall not be sacrificed to porta-bility. In hospitals or offices, where a cautery is frequentlyrequired, a stationary battery placed in a cellar or closet, and CAUTERY BATTERIES. 241 connected -with a switch-board in the operating-room, will givemore satisfaction than a portable battery, because the plates andcells can be made larger. Fig. 209 shows such a stationarybattery, modeled after that of Bruns. It i
. Practical electricity in medicine and surgery. es should also be portable, as many operationsrequire to be done at the patients home. It is essential, how-ever, that efficiency of action shall not be sacrificed to porta-bility. In hospitals or offices, where a cautery is frequentlyrequired, a stationary battery placed in a cellar or closet, and CAUTERY BATTERIES. 241 connected -with a switch-board in the operating-room, will givemore satisfaction than a portable battery, because the plates andcells can be made larger. Fig. 209 shows such a stationarybattery, modeled after that of Bruns. It is extremely convenient for office and hospital tbe present day most cauterybatteries arc made with zinc-carbon elements, and use theacid solution of potassium bi-chromate as the exciting fluid. The rapid action going onin the cell causes the evolutionof a large quantity of hydrogengas, which produces polarizationof the carbon plate unless it isdisplaced by agitating the is done in some batteriesby shaking the plates by means.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectelectri, bookyear1890
