File:Bell telephone magazine (1922) (14754793182).jpg

Identifier: belltelephonemag00vol2930amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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lated wire, the bar would beconmagnetized as electricity was passethrough the wires, and demagnetize,when the current stopped. This dicovery paved the way for Morswhose telegraph system and the codwhich bears his name are still in wicuse today. With the Morse telgraph system, the person who rjceives listens to a series of dot-dashe(which are the result of magnetizinand demagnetizing of part of the r<ceiver), then translates these into thwritten word. Another step came with the invertion of a machine to listen tocode and automaticalltranslate this code intwriting—which is whaTeletype does toda)The first practical application of printinjtelegraph is generall;credited to R. EHouse, who in 1841set up a workable drumcuit between NevdYork City and Philadelphia. Numerou:improvements and refinements followed, ineluding the Hughe:Printing Telegraphwhich was introducecabout ten years laterAnother outstandingcontribution was madeby Jean Maurice EmileBaudot, an officer ofthe French Telegraph
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In the Teletype Corporations research development de-partment, a development engineer checks the performanceof an Automatic Message Accounting ticket printer—manufactured by Teletype for Western Electric .195© Teletype s Share in Bell System Operations i83 Service, who in 1875—1877 devel-Dped a new system based on an en-irely different code. The Baudotnachine reads a code consisting ofimpulses of equal length, instead ofnshort dots and long dashes—i simpler and speedier arrangementvhich is now widely employed in:he printing telegraph field. With this code, the time it takes:or one letter or character to be sentlind received is divided into fiveperiods. The circuit can be either Charles Krum, who provided thetechnical know-how, and Joy Mor-ton, founder of the Morton SaltCompany (when it rains it pours)who backed the enterprise financially.Sons of these two men, Howard L.Krum and Sterling Morton, tookover the active management of thecompany about a decade later. Thiscompany manuf

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