GB318957A - Improvements in and relating to automatic and semi-automatic exchange systems - Google Patents

Improvements in and relating to automatic and semi-automatic exchange systems

Info

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
Application number
GB7971/29A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB318957A publication Critical patent/GB318957A/en
Expired legal-status Critical Current

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.
GB7971/29A 1928-06-13 1928-06-13 Improvements in and relating to automatic and semi-automatic exchange systems Expired GB318957A (en)

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)

* Cited by examiner, † Cited by third party
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

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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