American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 60
rom earth e^, thence to the lower brush of a, through the armature to the upperbrush, thence to point x^ where part of the current is diverted to the line wires of lowresistance, (first passing through an artificial resistance k.) The other portion of thecircuit leads to the lower brush of machine… … ^ ^ I ^ ^
Telegraph
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