File:First telegraph office in Salt Lake City 1861 - Bell telephone magazine (1941) (14753791974).jpg

Identifier: belltvol20elephonemag00amerrich (find matches)
Title: Bell telephone magazine
Year: 1941 (1940s)
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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ph business was transcontin-ental, it is impossible even to esti-mate. It is hardly more possible toestimate how much of the total wiremileage operated by these telegraphcompanies might be described as be-longing to transcontinental circuits.Both companies maintain large num-bers of permanently set-up circuitsfrom coast to coast. In addition tothese, there are many alternativeroutes which may be patched in foruse in transcontinental communicationif this becomes necessary or desirablefor any reason. Out of the development of tele-graph, and later, of telephone service,have grown the network of privateteletypewriter or printing telegraphlines, and the news and stock tickersystems that play so important a partin the business life of modernAmerica. Teletypewriter Exchange Service Of particular interest in connectionwith a discussion which centersaround the establishment of transcon-tinental telephone service is a form ofcommunication by the written word 19^1 The Conquest of a Continent 63
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FIRST TELEGRAPH OFFICE IN SALT LAKE CITY It was here, in October of 1861, that the wires from East and West were joined which is in some important respects analogous to telephone service and which utilizes telephone facilities for transmission—the so-called TWX or teletypewriter exchange service which for some years has been provided by the Bell System. As its name implies, the teletype-writer is a device for far-typewriting. It makes possible the electricaltransmission of messages in typewrit-ten form. Whatever is typed on the keyboard of the apparatus, while functioning as a transmitter, is trans-formed into electrical impulses which travel over the circuit to the distantapparatus which, functioning as a re-ceiver, reproduces the original mes-sage exactly as it was typed on the transmitting machine. In most cases,the same machine may be used eitherfor transmitting or receiving. For many years, the Bell Systemhas been providing private-line tele-typewriter service to large numbers ofsubscri

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