GB230763A - Improvements in or relating to telephone exchange systems - Google Patents

Improvements in or relating to telephone exchange systems

Info

Publication number
GB230763A
GB230763A GB2958824A GB2958824A GB230763A GB 230763 A GB230763 A GB 230763A GB 2958824 A GB2958824 A GB 2958824A GB 2958824 A GB2958824 A GB 2958824A GB 230763 A GB230763 A GB 230763A
Authority
GB
United Kingdom
Prior art keywords
exchange systems
relating
telephone exchange
impulse
impulse relay
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
GB2958824A
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
Priority to GB2958824A priority Critical patent/GB230763A/en
Publication of GB230763A publication Critical patent/GB230763A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

230,763. Western Electric Co., Ltd., (Deakin, G.). Sept. 11, 1923. Drawings to Specification. Automatic exchange systems.-The stepping magnet of a selector is exclusively controlled by an impulse relay in response to dialling impulses, but can also operate automatically under the control of an interrupter contact which is arranged to be short-circuited by the impulse relay when the latter de-energizes during impulse transmission. The system described is identical with that described in Specification 226,265, which claims other features. Specification 208,073, [Class 38 (v), Electric switches &c.], also is referred to.
GB2958824A 1923-09-11 1923-09-11 Improvements in or relating to telephone exchange systems Expired GB230763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2958824A GB230763A (en) 1923-09-11 1923-09-11 Improvements in or relating to telephone exchange systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2958824A GB230763A (en) 1923-09-11 1923-09-11 Improvements in or relating to telephone exchange systems

Publications (1)

Publication Number Publication Date
GB230763A true GB230763A (en) 1925-03-11

Family

ID=10293898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2958824A Expired GB230763A (en) 1923-09-11 1923-09-11 Improvements in or relating to telephone exchange systems

Country Status (1)

Country Link
GB (1) GB230763A (en)

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