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 1249
ned, and the magnetic circuitis also much better. Furthermore, it makes possible theuse of so-called former coils.^^ 1214 Steam Engineering SQ6. AYhat is a former coil? A71S, A former coil is one that is wound upon a former,i. e.^ one that is wound complete before it is placed upon thearmature.… … Fig. 541plank, or other suitable material. The wire is woundaround these pins as indicated in the figure, as many turnsbeing taken as it has been decided to allow for each coil.When the coil is thus completely wound it is taken fromthe pins, and the lower ends placed in a suitable clamp,…
