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Scientific American, Vol. 57, No. 27 (1887) (1887)

leaf 7

An illustration from Scientific American, Vol. 57, No. 27 (1887), 1887, leaf 7
22 revolves, causing the point of the speaking diaphragm THE NEW PHONOGRAPH. perfection—upon the regularity of its speed, the sus- (Continued from first page.) to traverse the path made by the recording needle. As ceptibility of the wax cylinder to the impressions of the other well known… … ceiving mouthpiece of the phonograph to positively scriber, it may be repeated as often as necessary. THE FIRST PHONOGRAPH. understand the words uttered by the instrument. In a similar manner a compositor may set his type In the later instruments, such as were exhibited directly from the dictation…

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