GB318957A - Improvements in and relating to automatic and semi-automatic exchange systems - Google Patents
Improvements in and relating to automatic and semi-automatic exchange systemsInfo
- Publication number
- GB318957A GB318957A GB7971/29A GB797129A GB318957A GB 318957 A GB318957 A GB 318957A GB 7971/29 A GB7971/29 A GB 7971/29A GB 797129 A GB797129 A GB 797129A GB 318957 A GB318957 A GB 318957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- automatic
- exchange systems
- relating
- semi
- control circuit
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
- Interface Circuits In Exchanges (AREA)
- Meter Arrangements (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
318,957. Standard Telephones & Cables, Ltd., (Deakin, G., and Polinkowsky, L.). June 13, 1928. Divided on 318,945. Drawings to Specification. Automatic exchange systems.-In a system in which a control circuit common to a group of selectors is controlled by a register controller, the .control circuit is not operatively associated with the selector until the register controller is ready to control it. The invention is described with reference to a system identical with that described in Specification 318,945.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17101/28A GB318945A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB318957A true GB318957A (en) | 1929-09-13 |
Family
ID=10089263
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17101/28A Expired GB318945A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
GB7972/29A Expired GB319063A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
GB7971/29A Expired GB318957A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
GB7970/29A Expired GB318956A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17101/28A Expired GB318945A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
GB7972/29A Expired GB319063A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7970/29A Expired GB318956A (en) | 1928-06-13 | 1928-06-13 | Improvements in and relating to automatic and semi-automatic exchange systems |
Country Status (4)
Country | Link |
---|---|
US (1) | US1830935A (en) |
DE (1) | DE575322C (en) |
FR (1) | FR681159A (en) |
GB (4) | GB318945A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB592989A (en) * | 1945-05-04 | 1947-10-06 | Siemens Brothers & Co Ltd | Improvements relating to automatic telephone systems |
US3875346A (en) * | 1974-02-25 | 1975-04-01 | Communic Mfg | Revertive pulsing |
-
1928
- 1928-06-13 GB GB17101/28A patent/GB318945A/en not_active Expired
- 1928-06-13 GB GB7972/29A patent/GB319063A/en not_active Expired
- 1928-06-13 GB GB7971/29A patent/GB318957A/en not_active Expired
- 1928-06-13 GB GB7970/29A patent/GB318956A/en not_active Expired
-
1929
- 1929-06-06 DE DEI38257D patent/DE575322C/en not_active Expired
- 1929-06-13 US US370673A patent/US1830935A/en not_active Expired - Lifetime
- 1929-06-17 FR FR681159D patent/FR681159A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB319063A (en) | 1929-09-13 |
US1830935A (en) | 1931-11-10 |
GB318945A (en) | 1929-09-13 |
GB318956A (en) | 1929-09-13 |
FR681159A (en) | 1930-05-15 |
DE575322C (en) | 1933-04-27 |
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