US1755970A - Protective device - Google Patents
Protective device Download PDFInfo
- Publication number
- US1755970A US1755970A US141397A US14139726A US1755970A US 1755970 A US1755970 A US 1755970A US 141397 A US141397 A US 141397A US 14139726 A US14139726 A US 14139726A US 1755970 A US1755970 A US 1755970A
- Authority
- US
- United States
- Prior art keywords
- switch
- burner
- blower
- fuel
- motor
- 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 - Lifetime
Links
- 230000001681 protective effect Effects 0.000 title description 2
- 239000000446 fuel Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000193803 Therea Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
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
Definitions
- My present'invention relatestoprotective devices and more particularly to devices adaptedfor'use in connection with fluid fuel burning furnaces, provided with automatic ignition.
- the automatic ignition sometimes fails to l :work, and as a result damage caused directly or indirectly by the escape of the fuel.
- Fig. 1 shows partly in elevation and artly in section an assembled oil burning ace, electric driven] blower and control I means embodying the features of my invention
- Fig. 2 shows diagrammatically a circuit organization for efi'ectingcontrol of 2 the electric motor and thereby the control of 1 the fuel suppliedto the furnace.
- the furnace 1 indicated in Fig. 1 of the drawing, includes a combustion chamber 2 and a burner, not shown.
- A. blower pipe or mixing tube 3 is connected at one end to the burner and at the other end to a blower 4 driven by an electric motor 5.
- Y The mixin tube 3isconnected to an oil supply throng pipe 6, and when blower 4 is in operation, oil is drawn through pipe 6 ,and supplied to the furnace burner.
- a light sensitive cell in thepresent instance a photoelectric cell,is mounted at the end of the tube 3, which is remote may be directed on to the cell Without causing it to be damaged by the heat of the furnace.
- the cell 7 and electric discharge device 8 controlled thereb are mounted in a container 9, which may suitable manner at theendof the mixing t1] z.
- the circuit arrangement whereby the s11 ply of fuel to the burner may be controlled-1s one of the contacts -11' ofa relay 12 and.
- filamentary electrode and control element or 73' grid 20 The filamentary; electrode is supplied with heating current from the transformer 17 andltS ClI CIllt is completedthrough a contact 21 on relay 12 so that it will be ener giz ed or deenergized simultaneously with the 'energiz ati-on and deenergization of motor 5.
- Thephotoelectric cell 7 is connected to one of the secondary windings of transformer 17 and-to the grid 20 in such a manner that when light from the burner is dire ted on to the light sensitive surface of the cell, a negagrid element 20.
- This-potential is sufliciently high to prevent flow of current in the output circuit of the discharge device 8 and as a result switch 13. will be maintained in closed position by the'action of the spring 15. If for any reason the burner flame should be ex tinguished the light sensitive cell 7 would become deenergized, the negative potential would be removed, from the id 20, and as :a result current would flow in t e output circuit of the discharge device. 8 and energize coil 19 Y to openswitch 13.
- switch 13 is of very low resistance comparedto switch 14, the former will'act as a short circuit for switch "14 so that practically no current'will flow through the latter switch and it will remain in :closed position during'the normal operation ofmo:
- An oil burner construction comprising a fan housing having a projecting nozzle portion, an air tube secured to said nozzle portion and opening thereinto, a combustion chamber into which the other end of said air tube opens, means for supplying fuel to said air tube, a housing secured to said nozzle portion and opening thereinto in alignment with the ends of said air tube and a flame responsive device in said housing whereby said flame responsive device is exposed to direct radiations from the burner flame.
Description
April zz, 1930. 7 QCSINGLETON 1,755,970
PROTECTIVE DEVICE Filed Oct. 13. l926 Inventor Harold C. Singleton,
His Attorney.
' from the furnace so t at light from the flames Patented Apr. 1930 UNITED i STATES {PATENT OFFICE! c. smarizrou, or scorn, NEW YORK, ,AiSSIGNOR 'ro E ERAL unncrrarc' comrm, A conroiwrrou or raw roux I I rnorricrrvnnuvrcn Application nieii October13, 1926. Serial No. 141,397.
My present'invention relatestoprotective devices and more particularly to devices adaptedfor'use in connection with fluid fuel burning furnaces, provided with automatic ignition. In the employment. of such devices '.the automatic ignition sometimes fails to l :work, and as a result damage caused directly or indirectly by the escape of the fuel.
It is one of the ob e cts of my invention to provide means for automatically interrupting the supply of fuel to a burner when the automatic. ignition fails.
The novel features which I believe tobe characteristic of my invention are set forth in the appended claim. My invention itself,
however, will best be understoodfrdmreference to the following specification taken n connection with the accompanying drawing "in which Fig. 1 shows partly in elevation and artly in section an assembled oil burning ace, electric driven] blower and control I means embodying the features of my invention, while Fig. 2 shows diagrammatically a circuit organization for efi'ectingcontrol of 2 the electric motor and thereby the control of 1 the fuel suppliedto the furnace. The furnace 1, indicated in Fig. 1 of the drawing, includes a combustion chamber 2 and a burner, not shown. A. blower pipe or mixing tube 3 is connected at one end to the burner and at the other end to a blower 4 driven by an electric motor 5. Y The mixin tube 3isconnected to an oil supply throng pipe 6, and when blower 4 is in operation, oil is drawn through pipe 6 ,and supplied to the furnace burner. 1
In order to control the sup y of fuelto the burner a light sensitive cell in thepresent instance a photoelectric cell,is mounted at the end of the tube 3, which is remote may be directed on to the cell Without causing it to be damaged by the heat of the furnace. The cell 7 and electric discharge device 8 controlled thereb are mounted in a container 9, which may suitable manner at theendof the mixing t1] z. The circuit arrangement whereby the s11 ply of fuel to the burner may be controlled-1s one of the contacts -11' ofa relay 12 and.
' adapted to automatically openand close the tive potential or bias will be supplied to the r 'to the motor 5 through the high resistance supported in anyshown in Fig. 2 in whichan alternating cur-v reht'source ofsupply is indicated at 10. Mo'- 1 tor I5 is connected to the source 10 through through a'pair of parallel connected switches 13, and 14, one of which, 13, is of low resistance and the other of-which, 14, is a high resistance thermostatic switch. Switch '13 is normally held in close'dpos'ition by means of a spring 15., Relay 12 is'energized from an alternating current source through a circuit comprising a secondary windin' 16 of transformer 17, and a thermostatic 'switch 18 motor circuit in accordance with the. room temperature it is desired to maintain; Switch 113 is controlled'by a winding 19 connected in the output circuit of the electric'dischar e device 8, the latter including the usual ano e,
filamentary electrode and control element or 73' grid 20. The filamentary; electrode is supplied with heating current from the transformer 17 andltS ClI CIllt is completedthrough a contact 21 on relay 12 so that it will be ener giz ed or deenergized simultaneously with the 'energiz ati-on and deenergization of motor 5.-
Thephotoelectric cell 7 is connected to one of the secondary windings of transformer 17 and-to the grid 20 in such a manner that when light from the burner is dire ted on to the light sensitive surface of the cell, a negagrid element 20. This-potential is sufliciently high to prevent flow of current in the output circuit of the discharge device 8 and as a result switch 13. will be maintained in closed position by the'action of the spring 15. If for any reason the burner flame should be ex tinguished the light sensitive cell 7 would become deenergized, the negative potential would be removed, from the id 20, and as :a result current would flow in t e output circuit of the discharge device. 8 and energize coil 19 Y to openswitch 13. Current would now flow thermostatic switch 14, and after a period of time, depending on the setting of switch 14, the contacts of-the switch'wouldseparate and one of them would be locked in 0 en position I by meansof a latch 22. Therea r, in order to initiate operation of the motor 5, it would be necessary to manually unlatch switch 14.
Normally, since switch 13 is of very low resistance comparedto switch 14, the former will'act as a short circuit for switch "14 so that practically no current'will flow through the latter switch and it will remain in :closed position during'the normal operation ofmo:
burning furnaces. In the latter type of fur- While I have indicated-an arrangement for controlling the fuel supply by means of a blower. motor, obviously a motor operated valve in the. fuel supply pipe could be controlled instead of the blower ifdesired. The invention is moreover not limited to oil burners but is equallyadapted for use in'gas nace, however, a valve in the supply pipe would be controlled rather than a blower as in the present case.
What I claim as new and desire to secure by Letters Patentof the United States is An oil burner construction comprising a fan housing having a projecting nozzle portion, an air tube secured to said nozzle portion and opening thereinto, a combustion chamber into which the other end of said air tube opens, means for supplying fuel to said air tube, a housing secured to said nozzle portion and opening thereinto in alignment with the ends of said air tube and a flame responsive device in said housing whereby said flame responsive device is exposed to direct radiations from the burner flame.
In witness whereof, I have hereunto set III hand this 12th day of October 1926.
'HAROLD C. SINGLETON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US141397A US1755970A (en) | 1926-10-13 | 1926-10-13 | Protective device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US141397A US1755970A (en) | 1926-10-13 | 1926-10-13 | Protective device |
Publications (1)
Publication Number | Publication Date |
---|---|
US1755970A true US1755970A (en) | 1930-04-22 |
Family
ID=22495516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US141397A Expired - Lifetime US1755970A (en) | 1926-10-13 | 1926-10-13 | Protective device |
Country Status (1)
Country | Link |
---|---|
US (1) | US1755970A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2804131A (en) * | 1953-06-05 | 1957-08-27 | Gen Controls Co | Flame responsive safety control system using prism and light chopper |
US2963353A (en) * | 1957-06-20 | 1960-12-06 | Texaco Inc | Temperature measurement in reactors operating under high temperature and pressure |
US3238992A (en) * | 1964-01-24 | 1966-03-08 | American Radiator & Standard | Solid-state control system |
US3276506A (en) * | 1963-12-19 | 1966-10-04 | Apparatcbau Eugen Schrag Komma | Burner control device |
US3315081A (en) * | 1964-01-10 | 1967-04-18 | Jr Nathan P Williams | Burning rate detector |
US3697213A (en) * | 1970-05-05 | 1972-10-10 | Volkswagenwerk Ag | Combustion system for a heater or the like |
US3932137A (en) * | 1973-11-08 | 1976-01-13 | Aero-Dyne Manufacturing, Inc. | Burner with automatic high-low operation |
US4287870A (en) * | 1978-03-24 | 1981-09-08 | John Johnson | Indoor barbeque cooking device |
-
1926
- 1926-10-13 US US141397A patent/US1755970A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2804131A (en) * | 1953-06-05 | 1957-08-27 | Gen Controls Co | Flame responsive safety control system using prism and light chopper |
US2963353A (en) * | 1957-06-20 | 1960-12-06 | Texaco Inc | Temperature measurement in reactors operating under high temperature and pressure |
US3276506A (en) * | 1963-12-19 | 1966-10-04 | Apparatcbau Eugen Schrag Komma | Burner control device |
US3315081A (en) * | 1964-01-10 | 1967-04-18 | Jr Nathan P Williams | Burning rate detector |
US3238992A (en) * | 1964-01-24 | 1966-03-08 | American Radiator & Standard | Solid-state control system |
US3697213A (en) * | 1970-05-05 | 1972-10-10 | Volkswagenwerk Ag | Combustion system for a heater or the like |
US3932137A (en) * | 1973-11-08 | 1976-01-13 | Aero-Dyne Manufacturing, Inc. | Burner with automatic high-low operation |
US4287870A (en) * | 1978-03-24 | 1981-09-08 | John Johnson | Indoor barbeque cooking device |
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