. Practical electricity in medicine and surgery. p-resented in Fig. 91. Here G is a glassvessel about three-quarters of an inch in diameter and two orthree inches long, provided with a double stopper, the lowerone, 0, being composed of resin and resin-oil, and the upper, S,of plaster of Paris. The A-essel contains a paste made of flourand sulphate of zinc, into which dip the metal are rods or plates of zinc, Z, there being two of these,and between them is a rod of chloride of silver, A. A silverwire is attached to the silver-chloride electrode, and passes outthrough the stoppe
. Practical electricity in medicine and surgery. p-resented in Fig. 91. Here G is a glassvessel about three-quarters of an inch in diameter and two orthree inches long, provided with a double stopper, the lowerone, 0, being composed of resin and resin-oil, and the upper, S,of plaster of Paris. The A-essel contains a paste made of flourand sulphate of zinc, into which dip the metal are rods or plates of zinc, Z, there being two of these,and between them is a rod of chloride of silver, A. A silverwire is attached to the silver-chloride electrode, and passes outthrough the stopper. To the zinc electrodes are fastened copper wires, carriedthrough the stopper in the same manner. These cells have anelectro-motive force of almost exactly one volt, and are said to s 0 r~- i ,„z |- -A G / P Fig. 91. CHLORIDE OF SILVER BATTERY. 103 remain constant for very long periods. The cell shown in has an internal resistance of about three or four ohms, butothers are constructed with larger plates having a resistance of. Fig. 92. something like half an ohm Through a proper external resist-ance such cells are able to furnish currents of sufficient inten-sity to be applicable to almost any variety of medical practice.
Size: 1922px × 1301px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectelectri, bookyear1890
