Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1310
Fig. 595 PARTLY ASSEMBLED 25 CYCLE, 500 K. W., 20,000 TO 375 VOLTTRANSFORMER Transformers 1275 … Fig. 596 CORE AND COILS, 500 K. W., 20,000 TO 375 VOLT TRANSFORMERS r 1276 Steam Engineering wound with double cotton covered strip copper, one turnper layer, with fullerboard insulation, in addition to thecotton covering, between turns. Exceptions to this con-
![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-98-34@270.webp)
