Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 155
and 12. Multipolar types are preferablyhere used. If the arm Z, connecting the two fields in Fig.II, he Jixed, the combination may be used as a dynamotor.And by driving armature 2 as a dynamo, by power, or by amotor secured to the arm Z, armature P will operate as amotor, turning at a certain… … Fig. 10.—Simple ideal grouping of armatures in series, in the magnetic circuit. <r, of P, in the opposite direction to which the armature Pis turning, in order that the lines of force across /^ may con-tinue to be cut at the same rate as before ; that is, whenthe field was fixed and the armature…
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