GB659452A - Fire detection apparatus - Google Patents
Fire detection apparatusInfo
- Publication number
- GB659452A GB659452A GB10009/49A GB1000949A GB659452A GB 659452 A GB659452 A GB 659452A GB 10009/49 A GB10009/49 A GB 10009/49A GB 1000949 A GB1000949 A GB 1000949A GB 659452 A GB659452 A GB 659452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- cells
- engine
- cell
- cowling
- 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
- 238000001514 detection method Methods 0.000 title abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- KOPBYBDAPCDYFK-UHFFFAOYSA-N caesium oxide Chemical compound [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 abstract 1
- 229910001942 caesium oxide Inorganic materials 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 238000001429 visible spectrum Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
- A62C3/08—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
Abstract
659,452. Photo-electric flame detectors. METCALF, A. G. B. April 13, 1949, No. 10009. Convention date, April 19, 1948. [Class 40 (iii)] The flame of a fire in a vehicle engine is detected by a photo-sensitive element. As described, the invention is for the detection of fires in the cowling of an aircraft engine. As shown, the cylinder space 4 is separated from the fuel pump, oil pump and other engine accessories in the space 5 by a fire wall 6. Photo-cells 8 are mounted approximately in the plane of the cylinders and face inwardly and rearwardly. Similar photo-cells 9 and 10 are spaced at 90 degree intervals around the engine. The field of vision of the cells is chosen to exclude direct sunlight which might enter the rear of the cowling and the photo-cells may be enclosed and provided with filters 17 to cut out the visible spectrum. In the arrangement of Fig. 2 (not shown), the invention is applied to a turbo-jet engine, the cells being mounted in the engine shroud. The cell output is amplified and used to operate a warning light on the instrument panel. The photo-sensitive element may be a caesium oxide or silver photo-cell, a bolometer, a selenium cell, a lead sulphide semi-conductor or a special type of sodium or other photo-cell sensitive to ultra-violet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US659452XA | 1948-04-19 | 1948-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB659452A true GB659452A (en) | 1951-10-24 |
Family
ID=22066213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10009/49A Expired GB659452A (en) | 1948-04-19 | 1949-04-13 | Fire detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB659452A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157468A (en) * | 1984-04-11 | 1985-10-23 | Wang Chun Jong | A method and device for detection of a blanket or the like being kicked off the body of a sleeping person |
| WO2006067389A1 (en) * | 2004-12-21 | 2006-06-29 | Rolls-Royce Plc | Fire warning system |
| CN103213545A (en) * | 2012-11-12 | 2013-07-24 | 海宁伊满阁太阳能科技有限公司 | Vehicle with sun exposure estimator fiber temperature measurement fire pre-warning system |
-
1949
- 1949-04-13 GB GB10009/49A patent/GB659452A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157468A (en) * | 1984-04-11 | 1985-10-23 | Wang Chun Jong | A method and device for detection of a blanket or the like being kicked off the body of a sleeping person |
| WO2006067389A1 (en) * | 2004-12-21 | 2006-06-29 | Rolls-Royce Plc | Fire warning system |
| CN103213545A (en) * | 2012-11-12 | 2013-07-24 | 海宁伊满阁太阳能科技有限公司 | Vehicle with sun exposure estimator fiber temperature measurement fire pre-warning system |
| CN103213545B (en) * | 2012-11-12 | 2016-04-20 | 海宁伊满阁太阳能科技有限公司 | Expose to the sun with the sun and penetrate the vehicle of estimator optical fiber temperature-measurement fire early-warning system |
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