American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 99
raise the lever l, and cause its 7^ AMERICAN TELEGRAPHY. upper end to close the circuit at c, for a longer or shorter interval depending onwhether the embossing is a dot or a dash. By a slight modification of the extra attach-ment the lever can be caused to reverse the polarity of the battery and… … AUTOMATIC TELEGRAPH SENDER. This apparatus has of late been much improved by Weiny and Phillips, and isnow termed the Phillips-Morse automatic telegraph. In the new arrangement threerows of embossings are made on the transmitting paper to secure greater accuracyat high speeds. The claim for this…
Telegraph
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