GB683078A - Gas testing apparatus - Google Patents
Gas testing apparatusInfo
- Publication number
- GB683078A GB683078A GB4137/50A GB413750A GB683078A GB 683078 A GB683078 A GB 683078A GB 4137/50 A GB4137/50 A GB 4137/50A GB 413750 A GB413750 A GB 413750A GB 683078 A GB683078 A GB 683078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- chambers
- chamber
- manometer
- diffusion
- 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
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
<PICT:0683078/III/1> <PICT:0683078/III/2> A portable diffusion-type gas tester for quantitatively detecting the presence of a deleterious gas in air comprises a casing divided by diffusion diaphragm 7, Fig. 3, into chambers 8 and 9, the gas sample being collected by probe 4, Fig. 1, and forced by rubber bulb 2 to inlet 20 and thence through chamber 8 and the pressure in chamber 9 due to diffusion of the deleterious gas being measured by a U-tube manometer 16. A second rubber bulb 3 is adapted to force scavenging air into both chambers on completion of the test through inlet 19. A pair of valves 11, 12, interconnected so as to be reversible by operation of lever 10, are adapted, in one position, to direct the gas into chamber 8, and in the other, to direct scavenging air into both chambers. A distributer 14 with louvre-like plates 15 serves to effect a uniform distribution of gas over the membrane. In order to hold the liquid in manometer 16 at zero or any desired position a valve 17 is provided. The casing is pivotally secured at 6 to a support 5 so that the manometer may be inclined. The support 5 is carried by a harness comprising a belt 22 and shoulder straps 21.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE683078X | 1950-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB683078A true GB683078A (en) | 1952-11-19 |
Family
ID=6597299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4137/50A Expired GB683078A (en) | 1950-01-18 | 1950-02-17 | Gas testing apparatus |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE494875A (en) |
| FR (1) | FR1013093A (en) |
| GB (1) | GB683078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092667A (en) * | 2021-03-03 | 2021-07-09 | 淮南师范学院 | Gas concentration monitoring device for coal mine |
-
0
- BE BE494875D patent/BE494875A/xx unknown
-
1950
- 1950-02-17 GB GB4137/50A patent/GB683078A/en not_active Expired
- 1950-02-21 FR FR1013093D patent/FR1013093A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092667A (en) * | 2021-03-03 | 2021-07-09 | 淮南师范学院 | Gas concentration monitoring device for coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1013093A (en) | 1952-07-22 |
| BE494875A (en) |
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