Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1441
to ever flow through the neutral wirethey will be large enough. 1406 Steam Engineering ARC LAMPS. When two rods of carbon are connected to a source ofcurrent, and their ends brought into contact with each other,and then separated a slight distance, the current will con-tinue to pass across the… … Fig. 666 and it is from this fact that the lamp gets its name. Thearc is constantly moving, and generally revolves aroundthe carbon points. This can be easily seen by looking closelyat a burning lamp through a smoked glass. After a lamphas been burning for some time on direct current the car-bons…
