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 47
Fig. 26. Commutator with Two Single-Turn Coils … Fig. 27. Two-Coil Armatiu-e Four-Coil Armature coils around the armature so that one set will come into action beforethe other set goes out. If, then, two additional sets of coils are placedupon the iron ring at right angles with the first set, as in Fig. 28, onesei will be in the position of…
Electrical engineering
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