GB318956A - 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
GB318956A
GB318956A GB7970/29A GB797029A GB318956A GB 318956 A GB318956 A GB 318956A GB 7970/29 A GB7970/29 A GB 7970/29A GB 797029 A GB797029 A GB 797029A GB 318956 A GB318956 A GB 318956A
Authority
GB
United Kingdom
Prior art keywords
automatic
exchange systems
relating
semi
connector
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
GB7970/29A
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 GB318956A publication Critical patent/GB318956A/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)
  • Interface Circuits In Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Meter Arrangements (AREA)

Abstract

318,956. 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 employing selectors with a common control circuit, a selector is operatively associated with the control circuit by a preliminary movement of the control switch. The control switch in addition to marking the wanted number interacts with a connector while it is hunting for a P.B.X. line, the connector and the switch moving alternately one step at a time. The invention is described with reference to selectors identical with those described in Specification 318,945.
GB7970/29A 1928-06-13 1928-06-13 Improvements in and relating to automatic and semi-automatic exchange systems Expired GB318956A (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
GB318956A true GB318956A (en) 1929-09-13

Family

ID=10089263

Family Applications (4)

Application Number Title Priority Date Filing Date
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
GB7972/29A Expired GB319063A (en) 1928-06-13 1928-06-13 Improvements in and relating to automatic and semi-automatic exchange systems
GB17101/28A Expired GB318945A (en) 1928-06-13 1928-06-13 Improvements in and relating to automatic and semi-automatic exchange systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB7971/29A Expired GB318957A (en) 1928-06-13 1928-06-13 Improvements in and relating to automatic and semi-automatic exchange systems

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB7972/29A Expired GB319063A (en) 1928-06-13 1928-06-13 Improvements in and relating to automatic and semi-automatic exchange systems
GB17101/28A Expired GB318945A (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) GB318957A (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
FR681159A (en) 1930-05-15
US1830935A (en) 1931-11-10
GB318957A (en) 1929-09-13
DE575322C (en) 1933-04-27
GB318945A (en) 1929-09-13

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