GB585698A - Improvements in electric switching systems - Google Patents

Improvements in electric switching systems

Info

Publication number
GB585698A
GB585698A GB1227044A GB1227044A GB585698A GB 585698 A GB585698 A GB 585698A GB 1227044 A GB1227044 A GB 1227044A GB 1227044 A GB1227044 A GB 1227044A GB 585698 A GB585698 A GB 585698A
Authority
GB
United Kingdom
Prior art keywords
relay
striking
potential
switching systems
electric switching
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
GB1227044A
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.)
Londex Ltd
Original Assignee
Londex 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
Application filed by Londex Ltd filed Critical Londex Ltd
Priority to GB1227044A priority Critical patent/GB585698A/en
Publication of GB585698A publication Critical patent/GB585698A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

585,698. Valve relay circuits. LONDEX, Ltd., and BESSON, A. P. June 28, 1944, No. 12270. [Classes 40 (iii) and 40 (v)] In a circuit in which a relay 1 is controlled by a discharge in a cold cathode tube 6, initiated by the darkening of a photo-electric cell 8, and consequent rise in potential of a striking electrode 7, the voltage supplying the cell and striking anode is stabilized, e.g. by a shunt connected neon tube 12. Preferably the operation of the relay increases the potential of the striking anode to prevent hunting. The system shown is supplied by A.C. mains. The sensitivity of the device is increased by the provision of rectifier 15 and condensers 16, 17.
GB1227044A 1944-06-28 1944-06-28 Improvements in electric switching systems Expired GB585698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1227044A GB585698A (en) 1944-06-28 1944-06-28 Improvements in electric switching systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1227044A GB585698A (en) 1944-06-28 1944-06-28 Improvements in electric switching systems

Publications (1)

Publication Number Publication Date
GB585698A true GB585698A (en) 1947-02-20

Family

ID=10001473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227044A Expired GB585698A (en) 1944-06-28 1944-06-28 Improvements in electric switching systems

Country Status (1)

Country Link
GB (1) GB585698A (en)

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