. Investigation of the aluminum cell : the rectifier. dc thru which the electrolyte 85 68 .455 may he circulated. In the 110 67 .58 experiments for this work, 142 65 .78 36 two tanks were used, one on 170 60 .96 each side of the rectifying 330 60 35 cell, so that the electro- Volts 110, cycles, lyte passed thru the cell while heing forced from onetank to the other. Circulation was accomplished by compressedair, admitted thru a three way valve, manually operated, whichfilled and emptied the tanks alternately. In an automaticsystem the tanks would be replace by a sm
. Investigation of the aluminum cell : the rectifier. dc thru which the electrolyte 85 68 .455 may he circulated. In the 110 67 .58 experiments for this work, 142 65 .78 36 two tanks were used, one on 170 60 .96 each side of the rectifying 330 60 35 cell, so that the electro- Volts 110, cycles, lyte passed thru the cell while heing forced from onetank to the other. Circulation was accomplished by compressedair, admitted thru a three way valve, manually operated, whichfilled and emptied the tanks alternately. In an automaticsystem the tanks would be replace by a small cooling tower,and a motor-operated pump. The cooling tanks had the advantagefor experimental work that the gases formed in the rectifyingcell could be drawn off at the valves on top, for 14 shows the cooling tanks used in the The ordinary types of feeder regulat-ors and constant currenttransformers might read-ily be applied to any ofthe above rectifiers, ifa source of constant di-rect current was Fig* 15. Automatic Regulator. Fig. 15 shows a special regulator which could readily toechanged from a constant current- to a constant voltage-regula-tor, and was useful in performing some of the experiments, es-pecially the life tests. A small reversible motor was worm-geared to a field rheostat, and its speed and direction con-trolled toy an auxiliary double-pole relay, shown in the auxiliary relay was in turn controlled toy the main relay,which was a vane type indicating meter whose pointer made ortoroke a contact at a certain predetermined rise or fall ofvoltage (or current,) in the In order to give an idea of the character of directcurrent from the different types of rectifiers, oscillogramswere taken, and are reproduced on the following page. An ex-planation of each follows: A. One i7ay Cell, normal load. Shows the amount of charging-and leakage current which can ordinarily toe expected. B. Sam
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1913
