. Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers. s is com-monly reported in terms of mass and numbers of particles, so the follow-ing experiments were designed to give information on a weight 4 shows the apparatus used. The precipitator was a duplicate ofthat used by Tolman, Ryerson, Brooks and Smyths Current from thelaboratory service line (110 volt, 60 cycle, single phase) was passedthrough a transformer of 500 watt capacity which stepped it up to amaximum of 15,000 volts; the actual voltage used, probably about 10,000,was controlled by m
. Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers. s is com-monly reported in terms of mass and numbers of particles, so the follow-ing experiments were designed to give information on a weight 4 shows the apparatus used. The precipitator was a duplicate ofthat used by Tolman, Ryerson, Brooks and Smyths Current from thelaboratory service line (110 volt, 60 cycle, single phase) was passedthrough a transformer of 500 watt capacity which stepped it up to amaximum of 15,000 volts; the actual voltage used, probably about 10,000,was controlled by means of a rheostat in the primary circuit. Thishigh tension current was rectified by a kenotron, which acts as a valve,thus delivering a half of the alternating cycle to the precipitator. ^ Tolman, R. C, Ryerson, L. H., Brooks, A. F., and Smyth, H. D., An electrical precipitatorfor analyzing smokes: Jour. Am. Chem. Soc, vol. 41, 1919, pp. 587-9. 106 Transactions of Am. Soc. of Engineers No. 26 platinumwire, fhreoded. Set screw for/ plafmum i/vire fSOOO I/O Its Vulcanite pluq. Gasouilet r— Groundglass joint A/a 36 platinum wire?sealed thru t^/ass by X_ ^^lum/numfoil anode
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