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 1458
Fig. 674 Fig. 675 … In Fig. 673 is shown an arc lamp with the case removed.The two upper coils are the coarsely wound series coils,while the two lower coils are the finely wound shunt coils.This lamp is adapted for an enclosed arc bulb. The mag-netically attracted cores are U shaped^ and both cores areconnected…
