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 198
Fig. 166. Method of Constructing Laminated Field Cores 172 ALTERNATING-CURRENT MACHINERY 161 … Fig. 167. Field Spider Showing LaminatedConstruction to clamp the laminations together. At intervals of about 3 inches, thelaminations are separated by a corrugated lamination (or its equiv-alent), which serves to form ventilating ducts that extend in-wardly to large openings in thecast-iron…
Electrical engineering
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