. Medical electricity; a practical treatise on the applications of electricity to medicine and surgery. potassium. The chemical action is similar to that of theSmee, but in this the hydrogen is appropriated so that it FORMS OF GALVANIC COMBINATIONS. 49 does not accumulate on the carbon plate. The Grenet cell,further, has an arrangement for lifting the zinc out of thefluid when not in use (Fig. 19). Although more constantthan the Smee, there are the same objections to it as to aconstant battery: the current rapidly attains the maximum,and then falls to zero. In the Stohrer battery, the sameform
. Medical electricity; a practical treatise on the applications of electricity to medicine and surgery. potassium. The chemical action is similar to that of theSmee, but in this the hydrogen is appropriated so that it FORMS OF GALVANIC COMBINATIONS. 49 does not accumulate on the carbon plate. The Grenet cell,further, has an arrangement for lifting the zinc out of thefluid when not in use (Fig. 19). Although more constantthan the Smee, there are the same objections to it as to aconstant battery: the current rapidly attains the maximum,and then falls to zero. In the Stohrer battery, the sameform of elements and the same exciting fluid are Stohrer constant battery has an arrangement by whichthe elements can be raised out of, or lowered into, the the portable battery, Stohrers cell (Fig. 20) is proba-bly more frequently employed at present than any other;but several new combinations, such as the Partz (Fig. 21) Fig. Partz Electric Battery Co., Phila. Portable voltaic battery. and the chloride, are being introduced with much suc-cess. The chloride battery seems to be peculiarly welladapted to medical work, but the composition of the ex-citing: fluid remains a secret. But it is known that it con-tains corrosive chloride of mercury, which, in the course ofthe reactions that ensue, is reduced to metallic battery is provided with a special rheostat so that allof the cups can be simultaneously used, the number ofmilliamperes being accurately ascertained by an absolutegalvanometer. 50 ELECTRO-PHYSICS. A battery, to be constant, must contain two fluids. Inthose of two fluids the polarization of the hydrogen and ofother products of electrolytic decomposition is sought tobe prevented by certain chemical reactions and by me-chanical means. One of the most powerful of these isGroves nitric acid battery—the elements of zinc andplatinum. The zinc element is acted on by diluted sul-phuric acid, a
Size: 1955px × 1278px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectro, bookyear1887
