GB506055A - Improvements in apparatus for the detection of noxious or poisonous gases - Google Patents

Improvements in apparatus for the detection of noxious or poisonous gases

Info

Publication number
GB506055A
GB506055A GB22331/37A GB2233137A GB506055A GB 506055 A GB506055 A GB 506055A GB 22331/37 A GB22331/37 A GB 22331/37A GB 2233137 A GB2233137 A GB 2233137A GB 506055 A GB506055 A GB 506055A
Authority
GB
United Kingdom
Prior art keywords
gas
detection
aug
photo
containers
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
GB22331/37A
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
Publication of GB506055A publication Critical patent/GB506055A/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/76—Chemiluminescence; Bioluminescence
    • G01N21/763—Bioluminescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids

Abstract

506,055. Photo-electric apparatus for detecting gases. BERNHEIM, G. W. Aug. 13, 1937, No. 22331. Void. Convention date, Aug. 13,1936. [Class 40 (iii)] Apparatus for the detection of noxious gases comprises means for projecting light from a single source through two containers 4, 5 side by side, each enclosing a translucent screen impregnated with a reagent which changes its colour or opacity on exposure to a gas to be detected. One of these containers is sealed, and the other is exposed to the action of external gas by means of tubes 14. The light passes through the two screens on to a photo-electric cell, the sensitive surface of which is divided into two equal parts by a groove or otherwise. In effect, two cells having a common anode are thus provided, and are connected in opposition to an indicator or signalling device 8. The presence of gas which affects the reagent in the open chamber 5 produces a change in the light beam falling on the corresponding sensitive surface of the cell, and thus operates the device 8.
GB22331/37A 1936-08-13 1937-08-13 Improvements in apparatus for the detection of noxious or poisonous gases Expired GB506055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH506055X 1936-08-13

Publications (1)

Publication Number Publication Date
GB506055A true GB506055A (en) 1939-05-16

Family

ID=4517156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22331/37A Expired GB506055A (en) 1936-08-13 1937-08-13 Improvements in apparatus for the detection of noxious or poisonous gases

Country Status (2)

Country Link
FR (1) FR825489A (en)
GB (1) GB506055A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103643B (en) * 1957-02-04 1961-03-30 William Herman Rosenblum Gas responsive signaling device
US5702887A (en) * 1993-03-19 1997-12-30 Chiron Diagnostics Corporation Long emission wavelength chemiluminescent compounds and their use in test assays

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103643B (en) * 1957-02-04 1961-03-30 William Herman Rosenblum Gas responsive signaling device
US5702887A (en) * 1993-03-19 1997-12-30 Chiron Diagnostics Corporation Long emission wavelength chemiluminescent compounds and their use in test assays
US5879894A (en) * 1993-03-19 1999-03-09 Chiron Diagnostics Corporation Long emission wavelength chemiluminescent compounds and their use in test assays

Also Published As

Publication number Publication date
FR825489A (en) 1938-03-03

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