GB591542A - Moisture indicator - Google Patents
Moisture indicatorInfo
- 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
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.
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)
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 |
-
1944
- 1944-09-13 GB GB17525/44A patent/GB591542A/en not_active Expired
Cited By (1)
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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