Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 115
by Dobrowolsky for securing a concentrationor a stiifening of the field towards the middleof the pole face. It consisted of connectingall the poles together by an iron ring, whichproduced a large leakage flux across the poletips, so rendering them highly saturated andunable to carry the main flux,… … Fig. 1.—Comb Poles lamination is sometimes cut short of the poleface (see fig. 1), so that the fiux-density inthe air gap at that region is doubled. Some-times only the pole tips are cut away in thismanner (see fig. 2); this, however, being done
Electrical engineering
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