History, theory, and practice of the electric telegraph (1866)
Prescott, George B.(George Bartlett),1830-1894 · Boston, Ticknor and Fields · leaf 521
eel J is revolving continu-ously. When the lever H is removed from the pin of the timingwheel /, the timing wheel is carried around by friction until it comesinto contact with the press T, forcing it against the type-wheel J,and taking off the letter which is at that instant in front of the… … Fig. no.
Telegraph
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