DocumentCode :
1418305
Title :
Remote-control toll board
Author :
Sorber, Gilbert ; Smith, Arthur Bessey
Author_Institution :
Automatic Electric Company, Chicago, Ill.
Volume :
58
Issue :
11
fYear :
1939
Firstpage :
696
Lastpage :
704
Abstract :
THE ESSENTIAL operating facilities placed at the disposal of toll operators for the switching and completion of long-distance calls have, in a general sense, remained substantially unchanged since the early days of toll switching. It is still common practice, in toll offices, to have toll lines and local subscribers´ trunks terminate in multiple jacks and lamp signals with associated cords and plugs to permit the operator to answer and extend calls between local stations and stations at distant toll centers. In addition, toll operators are still dependent on the assistance of inward and through operators for connecting within and through distant toll centers.
Keywords :
Assembly; Contacts; Joining processes; Monitoring; Relays; Springs; Switches;
fLanguage :
English
Journal_Title :
Electrical Engineering
Publisher :
ieee
ISSN :
0095-9197
Type :
jour
DOI :
10.1109/EE.1939.6431622
Filename :
6431622
Link To Document :
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