Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 446
ethe internal core against the rotative effect imparted to itby the rotating field in the ring surrounding it. An appara-tus of this form is shown in Plate XXII, from a recentpatent to Humphrey,^ which shows a decided advance over *March number of this Jotirnal.t April number of tins Journal.i… … W) a laminated disks and punched with a series of holes a, b, c,etc., midway between the centre and the periphery. AsVol. CLI. No. 906. 28 434 Colics: [J. F. I., shown, the primary is wound for a three-phase current, bothexterior and interior being wound, as shown, so as to pro-duce a rotating…
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