GB1110779A - Improvements in portable instruments for the determination of gases in air currents underground - Google Patents

Improvements in portable instruments for the determination of gases in air currents underground

Info

Publication number
GB1110779A
GB1110779A GB22066A GB22066A GB1110779A GB 1110779 A GB1110779 A GB 1110779A GB 22066 A GB22066 A GB 22066A GB 22066 A GB22066 A GB 22066A GB 1110779 A GB1110779 A GB 1110779A
Authority
GB
United Kingdom
Prior art keywords
counter
underground
gases
determination
air currents
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
GB22066A
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 GB1110779A publication Critical patent/GB1110779A/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Electric Clocks (AREA)

Abstract

1,110,779. Determining composition of a gas electrically. R. HœBNER. Jan. 4, 1966 [jan. 5, 1965], No.220/66. Addition to 1, 097, 641. Heading G1N. A portable instrument for determining the amount of gas in a sample of air in mines as described in Specification 1, 097, 641 is modified by the addition of a counter which registers one unit more each time the instrument is used. The counter may be electrically or mechanically actuated. A second counter may be provided to register the number of testing operations per shift, the second counter being reset to zero after each shift.
GB22066A 1965-01-05 1966-01-04 Improvements in portable instruments for the determination of gases in air currents underground Expired GB1110779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965H0054764 DE1598519B2 (en) 1965-01-05 1965-01-05 PORTABLE MEASURING DEVICE FOR DETERMINING THE CONCENTRATION OF DIFFERENT GASES IN THE UNDERGROUND WEATHER

Publications (1)

Publication Number Publication Date
GB1110779A true GB1110779A (en) 1968-04-24

Family

ID=7158812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22066A Expired GB1110779A (en) 1965-01-05 1966-01-04 Improvements in portable instruments for the determination of gases in air currents underground

Country Status (2)

Country Link
DE (1) DE1598519B2 (en)
GB (1) GB1110779A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233660C3 (en) * 1972-07-08 1981-08-06 Drägerwerk AG, 2400 Lübeck Gas detector using detector tubes
GB2105849B (en) * 1981-09-11 1985-05-15 Coal Ind Electrical gas analyser for sensing at least two gases

Also Published As

Publication number Publication date
DE1598519A1 (en) 1969-07-31
DE1598519B2 (en) 1973-07-12

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