GB765928A - Improvements in or relating to telecommunication systems - Google Patents

Improvements in or relating to telecommunication systems

Info

Publication number
GB765928A
GB765928A GB1897454A GB1897454A GB765928A GB 765928 A GB765928 A GB 765928A GB 1897454 A GB1897454 A GB 1897454A GB 1897454 A GB1897454 A GB 1897454A GB 765928 A GB765928 A GB 765928A
Authority
GB
United Kingdom
Prior art keywords
lead
control potential
tubes
relating
primed
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
GB1897454A
Inventor
Alan Davison
Ronald Threadgold
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
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
Priority to NL94369D priority Critical patent/NL94369C/xx
Priority to NL224234D priority patent/NL224234A/xx
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB29147/55A priority patent/GB765929A/en
Priority to GB1897454A priority patent/GB765928A/en
Priority to DEA19601A priority patent/DE975471C/en
Priority to US426337A priority patent/US2936402A/en
Publication of GB765928A publication Critical patent/GB765928A/en
Priority to US642461A priority patent/US2888612A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/52—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of gas-filled tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

765,928. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Jan. 15, 1953 [Jan. 16, 1952], No. 18974/54. Divided out of 765,925. Class 40 (4). [Also in Group XL (c)] Two discharge tubes VK10, VK11 (Complete drawing) are arranged so that a pulse applied over lead 10 to the trigger electrodes of both tubes causes one or the other of the tubes to strike in accordance with the presence or absence of a control potential on lead 11. Normally, with no control potential on lead 11, VK10 is primed and VK11 backed off. With a +50 v. control potential on lead 11, VK11 is primed and VK10 is backed off. The arrangement is used in the hunting switch described in Specification 765,929.
GB1897454A 1952-01-16 1952-01-16 Improvements in or relating to telecommunication systems Expired GB765928A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL94369D NL94369C (en) 1952-01-16
NL224234D NL224234A (en) 1952-01-16
GB29147/55A GB765929A (en) 1952-01-16 1952-01-16 Improvements in or relating to telecommunication systems
GB1897454A GB765928A (en) 1952-01-16 1952-01-16 Improvements in or relating to telecommunication systems
DEA19601A DE975471C (en) 1952-01-16 1953-01-16 Electronic switch in telecommunication systems, in particular telephone systems
US426337A US2936402A (en) 1952-01-16 1954-04-29 Communication switching system employing gas tubes
US642461A US2888612A (en) 1952-01-16 1957-02-26 Telecommunication systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1897454A GB765928A (en) 1952-01-16 1952-01-16 Improvements in or relating to telecommunication systems

Publications (1)

Publication Number Publication Date
GB765928A true GB765928A (en) 1957-01-16

Family

ID=10121639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1897454A Expired GB765928A (en) 1952-01-16 1952-01-16 Improvements in or relating to telecommunication systems

Country Status (3)

Country Link
DE (1) DE975471C (en)
GB (1) GB765928A (en)
NL (2) NL224234A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235153A (en) * 1939-07-11 1941-03-18 Bell Telephone Labor Inc Chain start circuit
US2291036A (en) * 1941-02-08 1942-07-28 Bell Telephone Labor Inc Selecting system
BE475754A (en) * 1941-11-21
AT166838B (en) * 1943-05-06 1950-09-25 Int Standard Electric Corp Tax system

Also Published As

Publication number Publication date
NL94369C (en)
DE975471C (en) 1961-12-07
NL224234A (en)

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