A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 527
f a device for readily sendingover the line the number of successive impulsesrequired to move the needle step-by-step fromany letter on the indicator to which it may bepointing, to the next it is desired to send. The dial, shown in Fig. 542, is marked on itsface with the same characters as the… … Fig. J42. BreguetS Manipulator, Below the dial face, and attached to the sameaxis as the movable arm, is a wheel providedwith undulations consisting of thirteen elevationsand thirteen depressions. Tel.] 516 [Tel. A lever T, pivoted at a, rests in these undu-lations at its upper end, and plays…
Electricity · Electrical engineering
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