GB1328639A - Warning devices for gas appliances - Google Patents
Warning devices for gas appliancesInfo
- Publication number
- GB1328639A GB1328639A GB1328639DA GB1328639A GB 1328639 A GB1328639 A GB 1328639A GB 1328639D A GB1328639D A GB 1328639DA GB 1328639 A GB1328639 A GB 1328639A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- gas
- alarm
- heat
- appliance
- 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
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
1328639 Ignition failure alarm B WOHLTERS and A T PICKUP 19 Jan 1971 [30 April 1970] 20841/70 Heading F4T An ignition failure warning device for a gas appliance comprises an electric circuit connected by a main switch 4 to a source of direct current 3 and has heat actuable switch 6 in parallel with a visual and/or audible alarm 5, so that when the main switch 4 is closed and gas is ignited and burned by the appliance, the heat of combustion closes the heat actuable switch 6 and the current flowing to the alarm 5 is insufficient for operation thereof, while on failure of ignition the switch 6 remains open and the maximum current passes to the alarm 5 causing operation thereof. The source of direct current 3 is a battery or accumulator and the heat actuable switch 6 comprises a bi-metallic strip. The main switch 4 may be operable with a gas valve control so that the switch closes when gas is supplied to the appliance.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2084170 | 1970-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1328639A true GB1328639A (en) | 1973-08-30 |
Family
ID=10152629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1328639D Expired GB1328639A (en) | 1970-04-30 | 1970-04-30 | Warning devices for gas appliances |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1328639A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219115A (en) * | 1988-05-25 | 1989-11-29 | Baxi Partnership Ltd | Burner pilot flame indicator |
-
1970
- 1970-04-30 GB GB1328639D patent/GB1328639A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219115A (en) * | 1988-05-25 | 1989-11-29 | Baxi Partnership Ltd | Burner pilot flame indicator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |