Black Facts – Granville T. Woods



















In 1885, Woods patented a apparatus which was a combination of a telephone and a telegraph. The device, which he called “telegraphony,” would allow a telegraph station to send voice and telegraph messages over a single wire. The device was so successful that he later sold it to the American Bell Telephone Company. In 1987, Woods developed his most important invention to date – a device he called Synchronous Multiplex Railway Telegraph. A variation of the “induction telegraph,” it allowed for messages to be sent from moving trains and railway stations. By allowing dispatchers to know the location of each train, it provided for greater safety and a decrease in railway accidents.  Read More Here…



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Posted on July 20, 2012, in Black Facts, Community News, Museums and tagged , , , . Bookmark the permalink. Comments Off on Black Facts – Granville T. Woods.

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