Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 140
notch in the collar. A coiled spring surrounding the shaft, pressingat one end against the shaft bearing, d, and at the other against acollar fixed to the shaft, serves to press the shaft normally to theleft into contact with the spring, b. A coiled spring on the shaftalso serves to keep the pin,… … FIG. 8S.-H0LTZER-CAB0T THREE-BAR GENERATOR. shaft out of contact with the spring, h, thus breaking the shuntaround the armature and leaving the latter effectively in the line. This is only one of many forms of autom^atic shunting devices,some of which will be shown in connection with commercial…
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