CH322839A - Automatic fire alarm system - Google Patents

Automatic fire alarm system

Info

Publication number
CH322839A
CH322839A CH322839DA CH322839A CH 322839 A CH322839 A CH 322839A CH 322839D A CH322839D A CH 322839DA CH 322839 A CH322839 A CH 322839A
Authority
CH
Switzerland
Prior art keywords
alarm system
fire alarm
automatic fire
automatic
fire
Prior art date
Application number
Other languages
German (de)
Inventor
Arne Heden Oskar
Arnold Svensson Sven Torsten
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of CH322839A publication Critical patent/CH322839A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
CH322839D 1953-02-14 1954-02-13 Automatic fire alarm system CH322839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE322839X 1953-02-14

Publications (1)

Publication Number Publication Date
CH322839A true CH322839A (en) 1957-06-30

Family

ID=20307884

Family Applications (1)

Application Number Title Priority Date Filing Date
CH322839D CH322839A (en) 1953-02-14 1954-02-13 Automatic fire alarm system

Country Status (5)

Country Link
CH (1) CH322839A (en)
DE (1) DE1005877B (en)
FR (1) FR1093208A (en)
GB (1) GB750036A (en)
NL (1) NL94775C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234588B (en) * 1958-06-21 1967-02-16 Frans C Lemaire Circuit arrangement for determining the rate of increase in the temperature of a location

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101229B (en) * 1956-11-12 1961-03-02 Reich Robert W Electric fire alarm
NL108575C (en) * 1957-02-19
US3245067A (en) * 1963-05-24 1966-04-05 B R K Electronics Inc Detection of products of combustion
JPH0755674Y2 (en) * 1988-02-02 1995-12-20 ニッタン株式会社 Fire detector
DE202009009567U1 (en) * 2009-07-14 2009-09-17 Comes, Andrea Electrical circuit for temperature monitoring, in particular of candles, and electrical apparatus with such a circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR906870A (en) * 1944-08-31 1946-02-22 Cie Francaise Du Signum Improvements in electrical fire signaling devices and the like
BE459861A (en) * 1945-03-02
US2619595A (en) * 1947-10-24 1952-11-25 Honeywell Regulator Co Flame detection apparatus
GB637207A (en) * 1947-12-09 1950-05-17 Trist & Co Ltd Ronald Improvements relating to alarm or indicating systems employing photoeletcric cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234588B (en) * 1958-06-21 1967-02-16 Frans C Lemaire Circuit arrangement for determining the rate of increase in the temperature of a location

Also Published As

Publication number Publication date
NL94775C (en)
GB750036A (en) 1956-06-06
FR1093208A (en) 1955-05-02
DE1005877B (en) 1957-04-04

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