GB380272A - Improvements in or relating to control valves for water heaters - Google Patents
Improvements in or relating to control valves for water heatersInfo
- Publication number
- GB380272A GB380272A GB28683/31A GB2868331A GB380272A GB 380272 A GB380272 A GB 380272A GB 28683/31 A GB28683/31 A GB 28683/31A GB 2868331 A GB2868331 A GB 2868331A GB 380272 A GB380272 A GB 380272A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- valve
- cut
- plug
- cock
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
380,272. Safety cut-off valves. EWART, G. and EWART & SON, Ltd., 346, Euston Road, London. Oct. 15, 1931, No. 28683. [Class 135.] A safety cut-off valve for a gas-fired water heater is fitted with means arranged so that when the supply has been cut off it can only be restored after the main gas control valve has been closed and re-opened. In the form shown in the Figure the cut-off valve comprises a lift valve member 10 arranged between a pair of differential diaphragms 13, 14 subject to inlet and outlet pressure respectively. The valve is opened initially by a manual operation of a spring-pressed push-button 17. To retard the closing of the device the chambers above and below the diaphragms communicate with the atmosphere through narrow apertures 20. Access to the push-button is prevented when the main cock 2 is open by a sliding cover 21 mounted on a sliding rod 22 linked to an eccentric pin on a disc 25 secured to the plug of the cock. The cover may be provided with a cam surface adapted to depress the pushbutton when the main cock is closed. The cover may be mounted directly on the plug or operated against the action of a spring by a cam on the plug. The cover may be replaced by a pin or similar member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28683/31A GB380272A (en) | 1931-10-15 | 1931-10-15 | Improvements in or relating to control valves for water heaters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28683/31A GB380272A (en) | 1931-10-15 | 1931-10-15 | Improvements in or relating to control valves for water heaters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB380272A true GB380272A (en) | 1932-09-15 |
Family
ID=10279473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28683/31A Expired GB380272A (en) | 1931-10-15 | 1931-10-15 | Improvements in or relating to control valves for water heaters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB380272A (en) |
-
1931
- 1931-10-15 GB GB28683/31A patent/GB380272A/en not_active Expired
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