GB591542A - Moisture indicator - Google Patents

Moisture indicator

Info

Publication number
GB591542A
GB591542A GB17525/44A GB1752544A GB591542A GB 591542 A GB591542 A GB 591542A GB 17525/44 A GB17525/44 A GB 17525/44A GB 1752544 A GB1752544 A GB 1752544A GB 591542 A GB591542 A GB 591542A
Authority
GB
United Kingdom
Prior art keywords
gas
appearance
moisture indicator
pict
chrome
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
GB17525/44A
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
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 Farnsworth Television and Radio Corp filed Critical Farnsworth Television and Radio Corp
Publication of GB591542A publication Critical patent/GB591542A/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
    • G01N21/77—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
    • G01N21/81—Indicating humidity

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (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 Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

A device for detecting moisture in a gas comprises a metallic member 11 having the property of changing its appearance when heated in a moist atmosphere, enclosed in a transparent envelope 6 through which the gas is passed, and provided with means for heating it, e.g., by passing an electric current through it. The change in appearance may be measured by a <PICT:0591542/III/1> photoelectric cell 24. The device may be used for testing a gas used in the treatment of metals in a furnace 1, in which case the metallic element is of the same composition as the metal to be treated, e.g., chrome-iron.
GB17525/44A 1943-04-24 1944-09-13 Moisture indicator Expired GB591542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US591542XA 1943-04-24 1943-04-24

Publications (1)

Publication Number Publication Date
GB591542A true GB591542A (en) 1947-08-21

Family

ID=22021183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17525/44A Expired GB591542A (en) 1943-04-24 1944-09-13 Moisture indicator

Country Status (1)

Country Link
GB (1) GB591542A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909058A (en) * 1954-11-08 1959-10-20 Burton Mfg Company Apparatus for measuring and controlling the composition of vapor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909058A (en) * 1954-11-08 1959-10-20 Burton Mfg Company Apparatus for measuring and controlling the composition of vapor

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