FR553896A - Warning system detecting the presence of lighting gas in all rooms - Google Patents
Warning system detecting the presence of lighting gas in all roomsInfo
- Publication number
- FR553896A FR553896A FR553896DA FR553896A FR 553896 A FR553896 A FR 553896A FR 553896D A FR553896D A FR 553896DA FR 553896 A FR553896 A FR 553896A
- Authority
- FR
- France
- Prior art keywords
- rooms
- warning system
- system detecting
- lighting gas
- lighting
- 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
- 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
- G01N25/38—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 the melting or combustion of a solid
- G01N25/385—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 the melting or combustion of a solid 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR553896T | 1922-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR553896A true FR553896A (en) | 1923-06-01 |
Family
ID=8938519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR553896D Expired FR553896A (en) | 1922-07-12 | 1922-07-12 | Warning system detecting the presence of lighting gas in all rooms |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR553896A (en) |
-
1922
- 1922-07-12 FR FR553896D patent/FR553896A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR553896A (en) | Warning system detecting the presence of lighting gas in all rooms | |
FR811440A (en) | Warning device for the presence of lighting gas in living rooms | |
FR533964A (en) | Apparatus for detecting the presence of lighting gas in apartments | |
FR800786A (en) | Warning device for the presence of lighting gas in living rooms | |
FR49176E (en) | Warning device for the presence of lighting gas in living rooms | |
FR838924A (en) | Device for automatically detecting and signaling the presence of combustible gases in atmospheric air | |
FR535555A (en) | Rapid building construction system | |
FR573931A (en) | Device that warns of the presence of flammable gas in the air and can signal fires | |
FR542114A (en) | Advanced instrument for detecting the presence of smoke in the atmosphere | |
FR974066A (en) | Warning of the presence of toxic gases and in particular lighting gases accidentally spilling into apartments or other premises | |
FR629814A (en) | Miner's lamp with optical indication of the presence of firedamp | |
FR583585A (en) | Gasoline gas diffuser-compensator | |
FR818975A (en) | Burglar alarm system | |
FR529381A (en) | Fire brigade call system | |
FR596516A (en) | Ignition system and switches allowing the implementation | |
FR836087A (en) | Device for indicating the presence of flammable vapors or gases, particularly in mines | |
ES81654A3 (en) | A system of lighting and indication lamps. | |
FR541277A (en) | Illuminated sign lighting system | |
FR605244A (en) | Fire alarm device and gas leak switch | |
FR832656A (en) | Detector to detect the presence of gas or suspended matter in the air | |
FR790584A (en) | Detection device for noxious gases or other applications | |
FR563054A (en) | Fire alarm | |
ES7955Y (en) | Arrangement of false cuffs with indicative strip. | |
ES80230A1 (en) | Improvements in the warning devices and annunciators. | |
FR595095A (en) | Fire alarm |