Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 573
on is only one-half as long as the upper or positive carbon. Such 3153 154 ELECTRICITY FOR ENGINEERS condition can be determined by either of the followingways: See if the light is being thrown downwards.See which carbon is burning away the faster. Raisethe carbons and notice the formation of the… … FIGURE 88. The action of the arc lamp used on direct currentconstant current systems is shown in Fig. 89. Currentpasses through wire T and over the coarsely woundsolenoid M, thence down to the carbon, across thearc or crater, into the negative carbon and out againon the wire T. The regulating…
