GB492428A - Improvements in or relating to apparatus for indicating the presence of gases - Google Patents
Improvements in or relating to apparatus for indicating the presence of gasesInfo
- Publication number
- GB492428A GB492428A GB30698/37A GB3069837A GB492428A GB 492428 A GB492428 A GB 492428A GB 30698/37 A GB30698/37 A GB 30698/37A GB 3069837 A GB3069837 A GB 3069837A GB 492428 A GB492428 A GB 492428A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indicating
- lever
- gases
- relating
- contact
- 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
- 239000007789 gas Substances 0.000 title abstract 2
- 230000003197 catalytic effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
- G01N25/34—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic
- G01N25/36—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic for investigating the composition of gas mixtures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (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)
- Lighters Containing Fuel (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE204659X | 1937-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492428A true GB492428A (en) | 1938-09-20 |
Family
ID=5783044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30698/37A Expired GB492428A (en) | 1937-10-05 | 1937-11-09 | Improvements in or relating to apparatus for indicating the presence of gases |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH204659A (enrdf_load_stackoverflow) |
| FR (1) | FR838924A (enrdf_load_stackoverflow) |
| GB (1) | GB492428A (enrdf_load_stackoverflow) |
| NL (1) | NL48300C (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8701872L (sv) * | 1987-05-06 | 1988-11-07 | Diantek Ab | Optisk detektor |
-
0
- NL NL48300D patent/NL48300C/xx active
-
1937
- 1937-11-09 GB GB30698/37A patent/GB492428A/en not_active Expired
-
1938
- 1938-06-01 CH CH204659D patent/CH204659A/de unknown
- 1938-06-04 FR FR838924D patent/FR838924A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL48300C (enrdf_load_stackoverflow) | |
| FR838924A (fr) | 1939-03-20 |
| CH204659A (de) | 1939-05-15 |
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