GB492294A - Improvements in safety cut-off devices for gas burners - Google Patents
Improvements in safety cut-off devices for gas burnersInfo
- Publication number
- GB492294A GB492294A GB7872/37A GB787237A GB492294A GB 492294 A GB492294 A GB 492294A GB 7872/37 A GB7872/37 A GB 7872/37A GB 787237 A GB787237 A GB 787237A GB 492294 A GB492294 A GB 492294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catch
- cock
- strip
- projection
- open position
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/04—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using bimetallic elements
- F23N5/047—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using bimetallic elements using mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
492,294. Safety cut-off valves. HORSTMANN F. O., and HORSTMANN GEAR CO., Ltd. March 17, 1937, No. 7872. [Class 135] A thermally-actuated safety cut-off valve has a rotary spring loaded valve adapted to be held in the open position by a catch actuated by a U-shaped bi-metallic strip 1 supported between the main jets 2 and the pilot burner 3. The bi-metallic strip is supported by a tube 4 secured to a lug 5 on the valve casing and is coupled by a rod 8 slidable in the tube 4 to a pivoted catch 18. The catch has two retaining surfaces 20, 21, adapted to co-operate with diametrically opposed projections 16, 17 on a plate 15 secured to the plug of the cock. When the cock is opened by manipulating the handle 11 the projection 17 snaps behind the surface 20 to retain the cock in the open position. As the thermal strip warms up the catch is turned about the pivot 19 to release the projection 16. The projection 17 is shortly afterwards engaged by the surface 21 to retain the cock in the open position until such time as the thermal strip is cooled or the catch is released by a manually operated element. In a modification the end of the rod 8 itself acts as a catch. In this form the cock must be held open by hand until the strip has warmed up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7872/37A GB492294A (en) | 1937-03-17 | 1937-03-17 | Improvements in safety cut-off devices for gas burners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7872/37A GB492294A (en) | 1937-03-17 | 1937-03-17 | Improvements in safety cut-off devices for gas burners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492294A true GB492294A (en) | 1938-09-19 |
Family
ID=9841397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7872/37A Expired GB492294A (en) | 1937-03-17 | 1937-03-17 | Improvements in safety cut-off devices for gas burners |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB492294A (en) |
-
1937
- 1937-03-17 GB GB7872/37A patent/GB492294A/en not_active Expired
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