FR752487A - Commutateur thermique, plus spécialement applicable comme détecteur automatique d'incendie - Google Patents

Commutateur thermique, plus spécialement applicable comme détecteur automatique d'incendie

Info

Publication number
FR752487A
FR752487A FR752487DA FR752487A FR 752487 A FR752487 A FR 752487A FR 752487D A FR752487D A FR 752487DA FR 752487 A FR752487 A FR 752487A
Authority
FR
France
Prior art keywords
fire detector
automatic fire
thermal switch
especially applicable
applicable
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
English (en)
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.)
DONLARM Ltd
Original Assignee
DONLARM 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 DONLARM Ltd filed Critical DONLARM Ltd
Application granted granted Critical
Publication of FR752487A publication Critical patent/FR752487A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
    • G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature
    • G01K3/12—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature based upon expansion or contraction of materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Control Of Resistance Heating (AREA)
FR752487D 1932-03-30 1933-03-15 Commutateur thermique, plus spécialement applicable comme détecteur automatique d'incendie Expired FR752487A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9158/32A GB399490A (en) 1932-03-30 1932-03-30 Thermal switches, more especially for use in automatic fire alarm devices

Publications (1)

Publication Number Publication Date
FR752487A true FR752487A (fr) 1933-09-23

Family

ID=9866522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR752487D Expired FR752487A (fr) 1932-03-30 1933-03-15 Commutateur thermique, plus spécialement applicable comme détecteur automatique d'incendie

Country Status (5)

Country Link
US (1) US1982548A (da)
DK (1) DK48410C (da)
FR (1) FR752487A (da)
GB (1) GB399490A (da)
IE (1) IE12862L (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4696291B2 (ja) * 2009-06-04 2011-06-08 三菱自動車工業株式会社 二次電池異常検出装置

Also Published As

Publication number Publication date
US1982548A (en) 1934-11-27
IE12862L (en) 1933-09-30
DK48410C (da) 1934-02-19
GB399490A (en) 1933-10-02

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