Modern practice of the electric telegraph : a handbook for electricians and operators (1874)
Pope, Frank L., 1840-1895 · New York : D. Van Nostrand · leaf 63
hat adjust the extra local magnets should beoiled with line oil to prevent wear and make their ad-justment easy. The extra local batteries must be keptof a uniform strength ; if they are allowed to becomeweak the instrument will be thrown out of adjustment.79. Millikens Eepeater.—In the general… … EAST Fig. 28. wire from the west passes through the relay magnet Mand the repeating points / g of the opposite soun-der, and thence to the battery and ground at G. Theeastern line passes through M, / and g to G, in a simi-lar manner. The extra local magnets L and L are arranged, asshown in the…
Telegraph
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