GB226366A - Improvements in and relating to hygrometers, hygroscopes and the like - Google Patents
Improvements in and relating to hygrometers, hygroscopes and the likeInfo
- Publication number
- GB226366A GB226366A GB3210023A GB3210023A GB226366A GB 226366 A GB226366 A GB 226366A GB 3210023 A GB3210023 A GB 3210023A GB 3210023 A GB3210023 A GB 3210023A GB 226366 A GB226366 A GB 226366A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- strip
- colour
- aperture
- humidities
- 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
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/222—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating moisture content
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
226,366. Atkinson, L. B. Dec. 21, 1923. Hygrometric apparatus.-A piece of porous material is saturated with a solution of salt, such as cobalt chloride, the colour of which depends on the humidity of the air, and the colour of the material is matched against a colour scale with which is associated a scale, of percentage humidities. In the form shown in Figs. 1, 2 and 4 the strip d of material is arranged' behind an aperture b in a card &c. a and the graded colour scale c is arranged adjacent the. edge of the aperture. The colours along the scale correspond to those assumed by the strip d at definite percentage humidities denoted on a scale e. To facilitate matching, a slotted cursor may be arranged to slide along the strip d and colour scale c. The card a may be enclosed in a metal sheath h, a layer i of waterproof material and a packing strip k being interposed between the strip d and the sheath. In the form shown in Fig. 6 the scale, c consists of a number of areas, each uniformly tinted and each having an aperture b<1> through which the sensitive strip is observed. The. number of such areas may be reduced to one when it is only desired to indicate a definite humidity. The device is particularly intended'to be used in incubators.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3210023A GB226366A (en) | 1923-12-21 | 1923-12-21 | Improvements in and relating to hygrometers, hygroscopes and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3210023A GB226366A (en) | 1923-12-21 | 1923-12-21 | Improvements in and relating to hygrometers, hygroscopes and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB226366A true GB226366A (en) | 1924-12-24 |
Family
ID=10333216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3210023A Expired GB226366A (en) | 1923-12-21 | 1923-12-21 | Improvements in and relating to hygrometers, hygroscopes and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB226366A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687041A (en) * | 1949-01-19 | 1954-08-24 | Frederick O Anderegg | Apparatus for meausring humidity |
WO2006124897A2 (en) * | 2005-05-13 | 2006-11-23 | Lexicon Genetics Incorporated | Methods and compositions for improving cognition |
-
1923
- 1923-12-21 GB GB3210023A patent/GB226366A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687041A (en) * | 1949-01-19 | 1954-08-24 | Frederick O Anderegg | Apparatus for meausring humidity |
WO2006124897A2 (en) * | 2005-05-13 | 2006-11-23 | Lexicon Genetics Incorporated | Methods and compositions for improving cognition |
WO2006124897A3 (en) * | 2005-05-13 | 2007-03-01 | Lexicon Genetics Inc | Methods and compositions for improving cognition |
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