GB391797A - Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices - Google Patents

Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices

Info

Publication number
GB391797A
GB391797A GB3044131A GB3044131A GB391797A GB 391797 A GB391797 A GB 391797A GB 3044131 A GB3044131 A GB 3044131A GB 3044131 A GB3044131 A GB 3044131A GB 391797 A GB391797 A GB 391797A
Authority
GB
United Kingdom
Prior art keywords
resistance
relay
circuit
oflight
condenser
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
GB3044131A
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.)
Radiovisor Parent Ltd
Original Assignee
Radiovisor Parent 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 Radiovisor Parent Ltd filed Critical Radiovisor Parent Ltd
Priority to GB3044131A priority Critical patent/GB391797A/en
Publication of GB391797A publication Critical patent/GB391797A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/288—Modifications for introducing a time delay before switching in tube switches

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

391,797. Controlling apparatus by light. POOK, H. W., 112, Beckenham Lane, Shortlands, Kent, and RADIO V I S 0 R PARENT, Ltd., 28, Little Russell Street, London. Nov. 3, 1931, No. 30441. [Class 40 (v).] In a delay-action circuit, a light-sensitive cell 1 and a resistance 2 in series are connected to a relay 9, Fig. 1, through a condenser 7, and an additional resistance 11 is brought into circuit by the relay to vary the effective resistance of the cell or the resistance 2. The relay is in the anode circuit of a thermionic valve 6 with its grid connected through the condenser to the junction 5 of the cell and the resistance 2. The resistance 11 is in series or shunt, Fig. 2 (not shown), with the resistance 2. The resistance 2 may be in two sections and the circuit operated by short-circuiting one of them, Fig. 3 (not shown). As shown in Fig. 4, the relay 20 is connected directly through the condenser to the junction 5.
GB3044131A 1931-11-03 1931-11-03 Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices Expired GB391797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3044131A GB391797A (en) 1931-11-03 1931-11-03 Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3044131A GB391797A (en) 1931-11-03 1931-11-03 Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices

Publications (1)

Publication Number Publication Date
GB391797A true GB391797A (en) 1933-05-03

Family

ID=10307731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3044131A Expired GB391797A (en) 1931-11-03 1931-11-03 Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices

Country Status (1)

Country Link
GB (1) GB391797A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748110C (en) * 1940-07-27 1944-10-26 W H Joens & Co Photoelectric control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748110C (en) * 1940-07-27 1944-10-26 W H Joens & Co Photoelectric control device

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