Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 592
(4) Disk^armatures are usually composed of a number ofseparate coils set side by side in the circumference of a disk(Fig. 463). Mechanical difficulties in their construction havenot permitted them as yet to compete successfully with thefirst two types named above. Section XX. ELBCTEIC MOTOR. 533.…
Physics
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