X rays, an introduction to the study of Röntgen rays (1914)
Kaye, G. W. C. (George William Clarkson), 1880-1941 · London : Longmans, Green · leaf 77
FIG. 28.—A Cox coil wound on the bisectional principle. For large coils (such as is shown in Fig. 29), some formof sectional winding is used, in which a large number of … Fig. 29.—A Butt coil wound on a multisection;)! principle circular flat sections, a few wires thick, are threaded sideby side on the primary tube and separated by partitions INDUCTION COILS 55 of waxed or varnished paper. In some cases, these sectionsare connected up in series by joining the…
X-rays
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