American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 353
nsulated portionp of the vibrating lever p, d, whichtakes the place of the disc d, and isacted upon by the collets c and cin the same manner as is that disc inthe arrangement shown in Figs. 223,224. In addition to the foregoingchanges the ends of the rods h and 11are passed through holes in… … WHEATSTONE AUTOMATIC TELEGRAPH. 301 FIG, 226. connected to the lower portion of the lever d, as shown, the upper and lower portions of that lever being insulated from each other. This style of transmitter has not been found very well adapted for circuits on which high electromotive force is…
Telegraph
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