Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 311
y kind. They are thoroughly insulated and are retained 274 TYPES OF GENERATORS AND MOTORS 29 in the slots by wedges or band wires. The commutator spider ismounted on an extension of the armature spider, thus being inde-pendent of the shaft. The cast-iron rocker ring carrying the brush rigging is… … Fig. 31. Crocker-Wheeler Parallel Movement Brush Holder of the rocker ring, and all the negative brushes to another ringsimilarly mounted on the other side of the rocker ring. A positivelow resistance connection is provided between each brush and itsbrush holder bracket. The brushes are held by…
Electrical engineering
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