GB1091613A - Electronic flame radiation responsive safety apparatus for burner installations - Google Patents
Electronic flame radiation responsive safety apparatus for burner installationsInfo
- Publication number
- GB1091613A GB1091613A GB5455465A GB5455465A GB1091613A GB 1091613 A GB1091613 A GB 1091613A GB 5455465 A GB5455465 A GB 5455465A GB 5455465 A GB5455465 A GB 5455465A GB 1091613 A GB1091613 A GB 1091613A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diode
- vibrator
- anode
- potential
- dec
- 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
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
- F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- 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
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
1,091,613. Photo-electric burner control. DUIKER APPARATENFABRIEK N. V. Dec. 23, 1965 [Dec. 24, 1964], No. 54554/65. Heading G1A. A burner flame is monitored by a gas-filled diode which causes a monostable multi-vibrator to switch to its astable mode when the diode is irradiated by ultraviolet light; the resulting repeated switching of the multi-vibrator providing an indicator or control signal indicative of flame presence. In Fig. 1 with triode B1 conducting in the stable state, the difference in anode potential supplied to the diode 3 via leads 4 and 5 is sufficient to cause it to conduct if already irradiated by radiation of sufficient intensity. The resulting rise in potential on capacitor C 2 causes the multi-vibrator to switch with B 2 conducting; the ensuing fall in anode-difference potential extinguishes the diode, capacitors C 1 and C 2 discharge and the multi-vibrator then returns to its stable state. Thus an alternating signal appears at the output terminals 1 and 2. Failure of any component or open or short circuit of the diode leads stops the repeated switching of the multi-vibrator. A high resistance may be connected in series with the diode to give a level of radiation intensity below which the diode will not conduct, such as the daylight level. The cathode of the diode may be a graphite coating on the inside of a tube with the anode in the centre. The multi-vibrator may use transistors instead of valves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6415075A NL6415075A (en) | 1964-12-24 | 1964-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1091613A true GB1091613A (en) | 1967-11-22 |
Family
ID=19791733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5455465A Expired GB1091613A (en) | 1964-12-24 | 1965-12-23 | Electronic flame radiation responsive safety apparatus for burner installations |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE674261A (en) |
| CH (1) | CH436547A (en) |
| GB (1) | GB1091613A (en) |
| NL (1) | NL6415075A (en) |
-
0
- BE BE674261D patent/BE674261A/xx unknown
-
1964
- 1964-12-24 NL NL6415075A patent/NL6415075A/xx unknown
-
1965
- 1965-12-23 GB GB5455465A patent/GB1091613A/en not_active Expired
- 1965-12-23 CH CH1775465A patent/CH436547A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE674261A (en) | |
| NL6415075A (en) | 1966-06-27 |
| CH436547A (en) | 1967-05-31 |
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