American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 544
TELEGRAPH. 437/ remaining practioally uniform. The reed 34 of vibrator 35, however, is provided withbuffers, ^6, 37, against which it impinges at each oscillation. These buffers limit theamplitude of vibration of the reed, and (as Mr. Murray has pointed out) as the energyimparted to the reed must… … -COLLECTOR SPACE-SIGNAL*
Telegraph
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