DocumentCode
1313167
Title
Utilizing the time characteristics of alternating current
Author
Warren, Henry E.
Volume
38
Issue
5
fYear
1919
fDate
5/1/1919 12:00:00 AM
Firstpage
629
Lastpage
643
Abstract
By the invention of a very small, simple and reliable self-starting synchronous motor, in conjunction with convenient means for regulating the average frequency of an alternating circuit, there has been developed a new field of usefulness for electric power. It is now feasible to drive all kinds of timing devices such as clocks, graphic instrument movements, time recorders, etc., directly from the lighting circuits. Remarkable accuracy is obtained, and the amount of care is minimized by the elimination of winding and regulating.
Keywords
Clocks; Magnetic levitation; Permanent magnet motors; Rotors; Shafts; Synchronous motors; Timing;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Proceedings of the
Publisher
ieee
ISSN
0097-2444
Type
jour
DOI
10.1109/PAIEE.1919.6591017
Filename
6591017
Link To Document