American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 328
he cable is worked duplex, theswitchs is not used,as the effect of theinrush and outrush of current due to the charge and discharge of the cable, upon the home receiving instrument,is avoided by placing it in the bridge wire of a Wheat-stone bridge; that method of rendering the home apparatus… … THEORY—STEARNS ARTIFICIAL CABLE. land duplex telegraphy, but it is required to resemble the cable proper much moreexactly, as regards resistance and static capacity, than does the artificial line in over-land telegraphy. The reasons for this are that in the case of the overland conductor the…
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