Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 334
over two letters, just as in the manipulator. To call attention to the instrument, a bell is attached tothe indicator (not shown in drawing), which can be put in orout of circuit by a simple contact breaker. There is also on the indicator a small button moving alever, by which the index hand can be… … Fig. 205. To send a message, the operator turns the manipulator armtill it is opposite the letter he wishes to transmit, at which hemakes a pause. Each letter he passes over will be passedover by the index hand in the indicator, which will alsopause at the letter over which he causes the…
Electricity
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