GB191504081A - Improvements in Apparatus for Operating Fire Alarm and the like. - Google Patents
Improvements in Apparatus for Operating Fire Alarm and the like.Info
- Publication number
- GB191504081A GB191504081A GB191504081DA GB191504081A GB 191504081 A GB191504081 A GB 191504081A GB 191504081D A GB191504081D A GB 191504081DA GB 191504081 A GB191504081 A GB 191504081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- water
- chamber
- diaphragm
- alarm
- 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
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/60—Pipe-line systems wet, i.e. containing extinguishing material even when not in use
- A62C35/605—Pipe-line systems wet, i.e. containing extinguishing material even when not in use operating and sounding alarm automatically
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
4081. Rowley, A. C. March 25,1914, [Convention date]. Sprinklers, automatic.-Relates to alarm apparatus for sprinkler systems, of the type adapted to be operated by a continuous flow of water, but adapted to prevent false alarms due to water hammer or brief pulsations in the water supply. A chamber 4 is adapted to communoiate with an automatic alarm valve in the sprinkler supply pipe through a valve 21 and an inlet 8, and is provided with outlets 10, 11 leading to electric and mechanical alarms. The stem 22 of the valve 21 is secured to a diaphragm 35 and is acted upon by an adjustable spring 45. When the alarm valve opens, the water passes through an axial passage 55 in the valve 21 and its stem into the diaphragm chamber 25, and also through radial branch pipes 57 into the lower portion of the chamber 4. Some of the water escapes through horizontal passages 62 into a recess 60, and thence into a discharge passage 61, whereby a retarding action is obtained. When the diaphragm chamber 25 has been entirely filled and the pressure in the chamber 4 has reached a predetermined degree, and if the pressure in the inlet 8 is maintained, the diaphragm 35 is forced outwards, and the valve 21 opens, thus giving free acceess of the water to the chamber 4 and the alarm outlets 10, 11. At the same time, the oonical rear surface 64 of the valve 21 closes the passages 62, thus preventing escape of water through the discharge passage 61.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US191504081XA | 1914-03-25 | 1914-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191504081A true GB191504081A (en) | 1915-09-09 |
Family
ID=32657115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191504081D Expired GB191504081A (en) | 1914-03-25 | 1915-03-15 | Improvements in Apparatus for Operating Fire Alarm and the like. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191504081A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108472526A (en) * | 2015-12-29 | 2018-08-31 | 德国美力有限两合公司 | Alarm valve station for fire alarm system |
WO2021156325A1 (en) | 2020-02-04 | 2021-08-12 | Gilles Brule | Thermodynamic engine |
-
1915
- 1915-03-15 GB GB191504081D patent/GB191504081A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108472526A (en) * | 2015-12-29 | 2018-08-31 | 德国美力有限两合公司 | Alarm valve station for fire alarm system |
US11369819B2 (en) | 2015-12-29 | 2022-06-28 | Minimax Gmbh | Alarm valve station for a fire alarm system |
WO2021156325A1 (en) | 2020-02-04 | 2021-08-12 | Gilles Brule | Thermodynamic engine |
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