GB426513A - Improvements relating to the production of fire extinguishing foam - Google Patents
Improvements relating to the production of fire extinguishing foamInfo
- Publication number
- GB426513A GB426513A GB169134A GB169134A GB426513A GB 426513 A GB426513 A GB 426513A GB 169134 A GB169134 A GB 169134A GB 169134 A GB169134 A GB 169134A GB 426513 A GB426513 A GB 426513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- gas
- foam
- injector
- pressure
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/002—Apparatus for mixing extinguishants with water
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
426,513. Making foam. MERRYWEATHER & SONS, Ltd., and OSBORNE, J. H., Greenwich Road, Greenwich, and MILLER, L. C., 8, St. Austell Road, Lewisham, both in London. Jan. 17, 1934, No. 1691. [Class 47 (ii)] A method of making fire - extinguishing foam consists in directing a high-velocity jet of water through an injector cone or Venturi tube and introducing into the Venturi foamgenerating solution and air or a gas, other than exhaust gas from an internalcombustion engine, under pressure. As shown, the injector comprises a pressure-water inlet 4<d>, nozzle 4<c>, throat 4<a>, and chamber 4<b>. A source of compressed gas, such as a compressed air main, is connected to a coupling 5. The gas passes by a pressure-reducing valve 6, stopcock 7 and non-return valve 8 to the inlet 10 into the injector chamber 4b. Foam-generating solution is supplied from a tank 3 to the chamber 4<b> by pipes 12, 14 and a pump 13 driven by a fluid motor 16 operated by compressed gas supplied by pipe 17. In a modification, an air compressor driven by a motor, such as a petrol engine which also drives the pump 13, is embodied in the apparatus, which is then portable and only needs connection to a source of water under pressure. Specification 409,494 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB169134A GB426513A (en) | 1934-01-17 | 1934-01-17 | Improvements relating to the production of fire extinguishing foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB169134A GB426513A (en) | 1934-01-17 | 1934-01-17 | Improvements relating to the production of fire extinguishing foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB426513A true GB426513A (en) | 1935-04-04 |
Family
ID=9726331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB169134A Expired GB426513A (en) | 1934-01-17 | 1934-01-17 | Improvements relating to the production of fire extinguishing foam |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB426513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3846515A (en) * | 1971-08-11 | 1974-11-05 | Chemetron Corp | Mechanical foam generating method and system |
-
1934
- 1934-01-17 GB GB169134A patent/GB426513A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3846515A (en) * | 1971-08-11 | 1974-11-05 | Chemetron Corp | Mechanical foam generating method and system |
Similar Documents
| Publication | Publication Date | Title |
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| GB426513A (en) | Improvements relating to the production of fire extinguishing foam | |
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