Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 95
Fig. 48. ARMATURES. 83 trie Company brush-holder arm is shown complete inFig. 49. The brush-holder arms are carried on rings, calledrockers, which are mounted concentric with the commuta-tor, either on a sleeve at the front bearing or on the field … Fig. 49. magnet frame. The rocker is capable of being movedaround the commutator by means of a tangential screwand hand wheel. After the proper brush position has beenfound the rocker is securely clamped. All the brushes, bothpositive and negative, are usually mounted on the samerocker, so that…
Electric machinery
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