The nursing and care of the nervous and the insane . PORTABLE CONSTANT GALVANIC CURRENT BATTERY In Fig. 6 is shown a galvanic battery of thirty cellsmade by Flemming. In this battery if the operatordesires to use the current of only a small number ofcells, he need put but a single section in action, thus 80 THE NURSING AND CARE OF saving the zinc and fluid of the rest; or if any accidentshould happen to a part it affects only the section it isin, and not, as in some other forms, the whole elements are zinc and carbon, the fluid the bichro- Fig. FLEMMINGS 30-CELL COMBINATION BAT


The nursing and care of the nervous and the insane . PORTABLE CONSTANT GALVANIC CURRENT BATTERY In Fig. 6 is shown a galvanic battery of thirty cellsmade by Flemming. In this battery if the operatordesires to use the current of only a small number ofcells, he need put but a single section in action, thus 80 THE NURSING AND CARE OF saving the zinc and fluid of the rest; or if any accidentshould happen to a part it affects only the section it isin, and not, as in some other forms, the whole elements are zinc and carbon, the fluid the bichro- Fig. FLEMMINGS 30-CELL COMBINATION BATTERY. mate of potassium solution, and the cells hard rubber,which is more durable than glass. The battery is putinto action by raising the sections of the cells by rods atthe back, these rods being so regulated by springs that the THE NERVOUS AND THE INSANE. 81 elements can be immersed to any desired depth, thusregulating the quantity of electricity evolved at the cells when not in action is a rubber hy-drostat, or rubber-cushioned sliding-board, which, bymeans of two small rods on either end, is pressed downtightly upon them when the lid is closed, thus prevent-ing the fluid from spilling during transportation, or ifby accident the battery should be upset. Unlikemany other batteries, the cells of this can be taken out infront for recharging, obviating the trouble and the riskof breakage in removing the elements. Connected withthe binding posts for receiving the electrode cords is acommutator for reversing the polarity of the current


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