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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 242

An illustration from 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, leaf 242
Fig. 109. Form of Trollej- Catcher with Drum and Reel coil type without rapid deterioration of the wire. The enamelheaters are, therefore, more compact and are used where there islittle space for them. Electric heaters are usually provided With coils of differentresistance and, therefore, with…

Electrical engineering

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