FR617502A - Heat or fire alarm - Google Patents

Heat or fire alarm

Info

Publication number
FR617502A
FR617502A FR617502DA FR617502A FR 617502 A FR617502 A FR 617502A FR 617502D A FR617502D A FR 617502DA FR 617502 A FR617502 A FR 617502A
Authority
FR
France
Prior art keywords
heat
fire alarm
alarm
fire
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)
Inventor
Ludovic Marcq
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 filed Critical
Application granted granted Critical
Publication of FR617502A publication Critical patent/FR617502A/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)
FR617502D 1926-06-14 1926-06-14 Heat or fire alarm Expired FR617502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR617502T 1926-06-14

Publications (1)

Publication Number Publication Date
FR617502A true FR617502A (en) 1927-02-21

Family

ID=8982340

Family Applications (1)

Application Number Title Priority Date Filing Date
FR617502D Expired FR617502A (en) 1926-06-14 1926-06-14 Heat or fire alarm

Country Status (1)

Country Link
FR (1) FR617502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259656A (en) * 1979-05-11 1981-03-31 Illinois Tool Works Inc. Thermal cut-off device with an activating spring that is held in a prestressed condition by a thermally fusible pellet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259656A (en) * 1979-05-11 1981-03-31 Illinois Tool Works Inc. Thermal cut-off device with an activating spring that is held in a prestressed condition by a thermally fusible pellet

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