File:Bell telephone magazine (1922) (14756067232).jpg

Identifier: belltelephonemag08amerrich (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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Telephone Typewriters daily in those cases where an alarm is to be broadcastover a network to a large number of receiving poiatswhere records are kept for future reference. For thispurpose comparatively simple switching systems havebeen devised so that any one or any group of a number
Text Appearing After Image:
Fig. 13. Telephone Typewriter Network for Connecticut Police of stations can be quickly connected to a single sendinginstrmnent at Headquarters and acknowledgment givento Headquarters of the receipt of the meassage at eachreceiving station. The fact that the instrument at thereceiving point does not require an attendant at thetime the message, which may be in multiple copy form,is coming in is also quite a valuable feature. One very important police department installationwas made in New York about a year ago. In this in-stallation each borough headquarters is provided withsending equipment and switching arrangements forenabling police items to be sent to one or any group of (189) Bell Telephone Quarterhj the borough precinct police stations. In addition, tielines are provided from Manhattan Headqviarters toeach of the other borough headquarters so that gen-eral police alarms can be flashed without delay to allprecincts in the greater city. A view of the installa-tion at Police Headqu

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