GB574601A - Improvements in or relating to apparatus for detecting explosive gases - Google Patents

Improvements in or relating to apparatus for detecting explosive gases

Info

Publication number
GB574601A
GB574601A GB220144A GB220144A GB574601A GB 574601 A GB574601 A GB 574601A GB 220144 A GB220144 A GB 220144A GB 220144 A GB220144 A GB 220144A GB 574601 A GB574601 A GB 574601A
Authority
GB
United Kingdom
Prior art keywords
chamber
filament
flange
cylindrical
gas
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
GB220144A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB220144A priority Critical patent/GB574601A/en
Publication of GB574601A publication Critical patent/GB574601A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

574,601. Explosive gas detectors. POOLE, R. Feb. 7, 1944, No. 2201. [Class 1 (i)] In apparatus for detecting explosive gases of the kind comprising an electrically heated filament exposed to the gas and connected in a Wheatstone bridge, the filament H<1> is mounted in a cylindrical chamber D on a removable support F which has on the inlet side a flange F<6> filling the chamber but for a narrow annular passage. The entering gas is thus prevented from impinging directly on the filament. A similar flange F' may be provided on the outlet side, and a cylindrical gauze screen G may be fitted between the flanges. The filament support is preferably in the shape of a cylindrical plug fitting axially in the chamber and has a flange F' forming a closure to the chamber.
GB220144A 1944-02-07 1944-02-07 Improvements in or relating to apparatus for detecting explosive gases Expired GB574601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB220144A GB574601A (en) 1944-02-07 1944-02-07 Improvements in or relating to apparatus for detecting explosive gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB220144A GB574601A (en) 1944-02-07 1944-02-07 Improvements in or relating to apparatus for detecting explosive gases

Publications (1)

Publication Number Publication Date
GB574601A true GB574601A (en) 1946-01-11

Family

ID=9735361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB220144A Expired GB574601A (en) 1944-02-07 1944-02-07 Improvements in or relating to apparatus for detecting explosive gases

Country Status (1)

Country Link
GB (1) GB574601A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294707B (en) * 1960-02-05 1969-05-08 English Electric Co Ltd Device for the detection of small amounts of a flammable gas in a gas atmosphere

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294707B (en) * 1960-02-05 1969-05-08 English Electric Co Ltd Device for the detection of small amounts of a flammable gas in a gas atmosphere

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