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 335
Fig. 173. Steel Pole Construction for High-Tension Circuit 294 ELECTRIC RAILWAYS 197 ing. The poles are reinforced with steel rods and the gains for the cross-arms are moulded in the proper positions. Steps are also moulded in the poles as climbing-irons would be useless in this case. While these…
Electrical engineering
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