American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 296
. A wire is run also from the lever of rt to the rheostat, and thenoe 10ground, and the polar relay is given control of the repeating transmitter, rt, in themanner sliown. It will thus be seen that all the apparatus necessary to effect tnistemporary repeating arrangement is a spare single… … MOFFAT TEMPORARY REPEATER FROM DUPLEX OR QUAD. TO BRANCH OFFICE. ran directly to ground. As this arrangement can be put into operation by an expertin one or two minutes its value, in point of time saved, is apparent. This expedient isdue to Mr. J. M. Moffatt. When ihe sending leg is in trouble the…
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-95-36.webp)
