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