GB574601A - Improvements in or relating to apparatus for detecting explosive gases - Google Patents
Improvements in or relating to apparatus for detecting explosive gasesInfo
- 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
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.
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)
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 |
-
1944
- 1944-02-07 GB GB220144A patent/GB574601A/en not_active Expired
Cited By (1)
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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