. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . electric energy must first be supplied from an external source, andthe action,both chemical and electrical, is limited, dependent on the amount of electrical charge Secondary Battery.—Camille A. Faure, a French chemist, constructed a cell basedon Plantes about 1880. But he substituted mechanically prepared plates for those preparedby electricity, by coating their surfaces with a paste of red lead (miniu
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . electric energy must first be supplied from an external source, andthe action,both chemical and electrical, is limited, dependent on the amount of electrical charge Secondary Battery.—Camille A. Faure, a French chemist, constructed a cell basedon Plantes about 1880. But he substituted mechanically prepared plates for those preparedby electricity, by coating their surfaces with a paste of red lead (minium, PbsO,) and sul-phuric acid, which, when subjected to electrical action, was rapidly reduced to peroxide onthe one plate and spongy lead on the other. After this was applied it was coated withpaper, and each plate then enveloped in felt to retain the coating on the surface and toinsulate the plates from each other. They were then rolled together and placed in the acid-ulated water in the cell, and subjected to electric action with reversals, and in a few daysthe cell was ready for use. The great advantage of the Fauie over the Plante cell consists STORAGE BATTEETES. 817. Fig. 8.—Accninulator ce in the rapid reduction of the minium instead of the slow reduction of the metallic soon developed serious faults, however; but the rapid preparation of the plates wasso great an advance that various inven-tors worked patiently to overcome thefaults which had developed. The variousimprovements of Swan, Sellon, Volek-mar, Shaw, and others resulted in pro-ducinjrthe improved cell shown in Fig. is made of ditferent sizes and avariable number of plates, according tothe purpose for which it is standard type shown, made by theAccumulator Co., of New York, calledthe 15a cell, has 15 plates, 7 positivesand 8 negatives, those plates being calledpositive which are connected with thepositive pole in charging, and fromwhich the external current flows in dis-charging
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
