A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 426
Fig. 441. TelegraphicBrackets. Fig. 442. TelegraphicArms. poles suitably braced together, must be employed.In long lines the poles should all be numbered inorder to afford ease of reference in case of repair. When, even with the best punning, and otherprecautions, the pole is judged to be .unable…
Electricity · Electrical engineering
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