GB390170A - Improvements in or relating to photo-electric control devices for use in electric signalling or control systems - Google Patents
Improvements in or relating to photo-electric control devices for use in electric signalling or control systemsInfo
- Publication number
- GB390170A GB390170A GB27067/31A GB2706731A GB390170A GB 390170 A GB390170 A GB 390170A GB 27067/31 A GB27067/31 A GB 27067/31A GB 2706731 A GB2706731 A GB 2706731A GB 390170 A GB390170 A GB 390170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric
- photo
- relating
- control systems
- signalling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
- G08C19/24—Electric signal transmission systems in which transmission is by pulses using time shift of pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Selective Calling Equipment (AREA)
Abstract
390,170. Light-sensitive cells. SCHNEIDER ET CIE, 42, Rue .d'Anjou, Paris. Sept. 29, 1931, No. 27067. Convention date, Nov. 27, 1930. [Class 40 (iii).] In a photo-electric device for use as a transmitter in electric signalling systems or a circuitclosing device in control systems, a. rotating pencil of light co-operates with an annular light-sensitive cell 12.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR390170X | 1930-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB390170A true GB390170A (en) | 1933-03-29 |
Family
ID=8896021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27067/31A Expired GB390170A (en) | 1930-11-27 | 1931-09-29 | Improvements in or relating to photo-electric control devices for use in electric signalling or control systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB390170A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3654553A (en) * | 1970-07-01 | 1972-04-04 | Us Army | Remotely sensing optical tachometer |
-
1931
- 1931-09-29 GB GB27067/31A patent/GB390170A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3654553A (en) * | 1970-07-01 | 1972-04-04 | Us Army | Remotely sensing optical tachometer |
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