The Free Dictionary  
mailing list For webmasters
Welcome Guest Forum Search | Active Topics | Members

Thomas Edison Patents the Phonograph (1878) Options
Daemon
Posted: Wednesday, February 19, 2020 12:00:00 AM
Rank: Advanced Member

Joined: 3/7/2009
Posts: 30,279
Neurons: 90,015
Location: Inside Farlex computers
Thomas Edison Patents the Phonograph (1878)

Though his formal schooling was limited to just three months of instruction before he was ten years old, Edison was one of the most prolific inventors of his time. His work in improving telegraph technology—particularly his discovery of a method for recording telegraph messages—led Edison to suspect he could do similar things with sound. Within months, the first working model of his phonograph was ready. Why, according to Edison, was he "taken aback" when his invention worked on the first try? More...
KSPavan
Posted: Wednesday, February 19, 2020 2:16:53 AM

Rank: Advanced Member

Joined: 1/28/2015
Posts: 9,575
Neurons: 3,906,516
Location: Kolkata, Bengal, India
This Day in History
?

Thomas Edison Patents the Phonograph (1878)
Though his formal schooling was limited to just three months of instruction before he was ten years old, Edison was one of the most prolific inventors of his time. His work in improving telegraph technology—particularly his discovery of a method for recording telegraph messages—led Edison to suspect he could do similar things with sound. Within months, the first working model of his phonograph was ready. Why, according to Edison, was he "taken aback"
Adyl Mouhei
Posted: Wednesday, February 19, 2020 6:17:17 AM

Rank: Advanced Member

Joined: 5/1/2017
Posts: 3,908
Neurons: 732,044
Location: Casablanca, Grand Casablanca, Morocco
The technology that made the modern music business possible came into existence in the New Jersey laboratory where Thomas Edison created the first device to both record sound and play it back. He was awarded U.S. Patent No. 200,521 for his invention—the phonograph—on February 19, 1878.

Edison’s invention came about as spin-off from his ongoing work in telephony and telegraphy. In an effort to facilitate the repeated transmission of a single telegraph message, Edison devised a method for capturing a passage of Morse code as a sequence of indentations on a spool of paper. Reasoning that a similar feat could be accomplished for the telephone, Edison devised a system that transferred the vibrations of a diaphragm—i.e., sound—to an embossing point and then mechanically onto an impressionable medium—paraffin paper at first, and then a spinning, tin-foil wrapped cylinder as he refined his concept. Edison and his mechanic, John Kreusi, worked on the invention through the autumn of 1877 and quickly had a working model ready for demonstration.

The December 22, 1877, issue of Scientific American reported that “Mr. Thomas A. Edison recently came into this office, placed a little machine on our desk, turned a crank, and the machine inquired as to our health, asked how we liked the phonograph, informed us that it was very well, and bid us a cordial good night.”

The patent awarded to Edison on February 19, 1878, specified a particular method—embossing—for capturing sound on tin-foil-covered cylinders. The next critical improvement in recording technology came courtesy of Edison’s competitor in the race to develop the telephone, Alexander Graham Bell. His newly established Bell Labs developed a phonograph based on the engraving of a wax cylinder, a significant improvement that led directly to the successful commercialization of recorded music in the 1890s and lent a vocabulary to the recording business—e.g., “cutting” records and “spinning wax”—that has long outlived the technology on which it was based.

READ MORE: Thomas Edison - Inventions, Patents & Biography


www.history.com › this-day-in-history › thomas-alva-edison-patents-the...
Users browsing this topic
Guest


Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.