An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. 49.—Edison-Lalande Copper-Oxide Battery, A-262 BLEYER. hard and continuous work on the lines of telegraph, railway, and tele-phone companies, with the best of results. This battery is now in thehands of the most prominent men of our profession for all kinds of can recommend it as the only battery for cautery and motor who have not seen it in action should certainly find an opportunityto examine it. The only drawback is in the cleansing and refilling, inwhich caution m
An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. 49.—Edison-Lalande Copper-Oxide Battery, A-262 BLEYER. hard and continuous work on the lines of telegraph, railway, and tele-phone companies, with the best of results. This battery is now in thehands of the most prominent men of our profession for all kinds of can recommend it as the only battery for cautery and motor who have not seen it in action should certainly find an opportunityto examine it. The only drawback is in the cleansing and refilling, inwhich caution must be exercised on account of the caustic potash,although this difficulty is now being overcome by using sticks instead ofa solution of potash. The results of these laboratory tests are shown inthe curves given herewith (Fig. 50). 64,0787679, COMPARATIVE TEST OF TWO CELLS, TYPE A (JOINED IN SERIES),AND ONE LECLANCHE CELL (BOTH FEESHLY PREPARED). Edis(yii-ZaJande BaU^ r-^^Ledanche SaUerp. TIME IN In this test the batteries were so arranged as to be alternately throwninto circuit with a resistance coil. The periods of rest and work were offive minutes duration. When the Leclanche was resting the Edison-Lalande was working, and vice versa. The 300-ampere-hour cell, which may be taken as a typical example,stands eleven and one-fourth inches high by five and three-eighths inchesin diameter. It has an internal resistance of ohm; the electro-motive force of the cell on continuous hard work is volt, and on lightwork 0.*75 volt. The initial electro-motive force is volt, soon falling,however, to the normal standard, where it remains practically constantduring the life of the cell. On open circuit there is little or practicallyno action on the zinc, and positively none when the latter is pure. The GALVANISM. A-263 action of the cell is admirably shown in the accompanying curves (). Fig. 52 represents the results of careful tests made at the Ed
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectuterus, bookyear1894
