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FR827856A - Improvements to devices for detecting variations in temperature which can be used, in particular, as automatic fire alarms - Google Patents

Improvements to devices for detecting variations in temperature which can be used, in particular, as automatic fire alarms

Info

Publication number
FR827856A
FR827856A FR827856DA FR827856A FR 827856 A FR827856 A FR 827856A FR 827856D A FR827856D A FR 827856DA FR 827856 A FR827856 A FR 827856A
Authority
FR
France
Prior art keywords
devices
temperature
automatic fire
fire alarms
detecting variations
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
Other languages
French (fr)
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.)
Compagnie des Telephones Thomson Houston
Original Assignee
Compagnie des Telephones Thomson Houston
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 Compagnie des Telephones Thomson Houston filed Critical Compagnie des Telephones Thomson Houston
Application granted granted Critical
Publication of FR827856A publication Critical patent/FR827856A/en
Expired legal-status Critical Current

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

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR827856D 1937-01-18 1937-01-18 Improvements to devices for detecting variations in temperature which can be used, in particular, as automatic fire alarms Expired FR827856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR827856T 1937-01-18

Publications (1)

Publication Number Publication Date
FR827856A true FR827856A (en) 1938-05-05

Family

ID=9283495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR827856D Expired FR827856A (en) 1937-01-18 1937-01-18 Improvements to devices for detecting variations in temperature which can be used, in particular, as automatic fire alarms

Country Status (3)

Country Link
BE (1) BE422881A (en)
CH (1) CH206863A (en)
FR (1) FR827856A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965669C (en) * 1941-08-05 1957-06-13 Augsburg Nuernberg A G Zweigni Diesel engine

Also Published As

Publication number Publication date
CH206863A (en) 1939-08-31
BE422881A (en)

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