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Scientific American, Vol. 41, No. 13 (1879) (1879)

leaf 7

An illustration from Scientific American, Vol. 41, No. 13 (1879), 1879, leaf 7
s found to be superior to all Mr. Thomas H. Hicks, of London, Ontario, Canada, has others. — mente EDISON’S LATEST TELEPHONE, patented an improvement in the class of cylindrical drums The operation of this telephone will be understood by or blowers used with carbureters, and which are provided… … the belly band or girth and the martingale of ment, while it is equally as sensitive as ex- a harness, the use of which will allow them to isting forms of transmitter. The details of ; be disconnected without unbuckling the belly band or girth its construction will be understood by Fig. 2. A…

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