Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 247
olving all the time at a nominally fixed speed-relation. {a) Now, upon operating M, as a motor, but against therotation of A (and therefore, as a brake to A), the armatureA will be slowed down, which will cause the field of thedynamotor and arms XX to rotate in the opposite directionof armature A,… … Fig. 14.—Epicyclic electro-magnetic mechanism. slowed down till it stops, the dynamotor field will increaseits speed of rotation till up to the former speed of itsarmature A, and will maintain that speed, still in the oppo-site direction, as long as armature A is held stationary, bythe armature of…
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