US1429521A

US1429521A - Oil burner

Info

Publication number: US1429521A
Application number: US447613A
Authority: US
Inventors: Miller Frederick Fraser
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-02-24
Filing date: 1921-02-24
Publication date: 1922-09-19
Anticipated expiration: 1939-09-19

Description

F. F. MILLER.

OIL BURNER.

APPLICATION VFILED fes. 24, 1921.

12429)?5@ v Patemed Sept. i9, 1922.

.. Mll/5%@- Patented Sept. 19, 1922.

OFFICE.v

OIL BURNER.

Application led February 24, 1921. Serial No. 447,618.

To all whom t may concern.'

Be itl known that LFBEDERICK FRASER MILLER, a subject of the King of Great Britain, residing at Napanee, in the county of Lennox and Addington and Province of Ontario, in the Dominion of Canada, have invented new and useful Im rovements 1n Oil Burners, of which the ollowing 1s a specification. i

My invention relates to improvements 1n oil burners for use in furnaces and bollers. In the use of fuel oil in house furnaces and small boilers the opening in the fuel nozzle of the burner requires to be lar e enough so as not to clog up and with continuous burning such a nozzle will use an excessive amount of oil over the heating requirements of the furnace or boiler.

The object of my invention is to intermit tently burn the fuelv and so reduce the consumption without using a separate lighting flame or pilot light. I attain this object by the means illustrated in the accompanying drawing which illustrates-the'use in an ordinary-hot water heater or furnace for a house.

Similar figures relate to similar parts throughout the drawingl is a combustion chamber inside the fire box of the furnace 3. It consists of a shell A lined with heat-resisting and nonconducting material or materials such as a carborundum or fire clay refractory brick, backed with a nonconductor of heat such as asbestos 5 and supported upon a stand 4 and is shown in two halves held together by lugs 6 and 7 and bolts 2. By this means the parts can be made small enough to be placed in a furnace already set up, through the coal door G 'or ash door H and it can also be easily taken apart so as to renew the lining 5. I do notrestrict it to the use of a shell as A may consist of bolts and rods suflicient to hold the different parts of 5 together or to the use of a separator shell as in constructing a new furnace the shell A could be made an integral part of the furnace and is not necessarily contained in the fire box of the boiler or furnace but may connect outside so that the products of combustion enter the fire box. 8 is an opening into 1 through which the air nozzle 9 containing the fuel nozzle 10 enters the chamber. 11 is a door closing an opening 12 into l through which the lnitial fire is started 13, 13, 13, are openlngs near the bottom of 1 to allow the products of combustiony to escape out into the re box of the furnace and are placed near the bottom sov that when the ire 1s not burning the radiation of heat out of 1 1s reduced to a minimum. 14 is a plpe connecting 9 to an air blower 15 operated by an electric motor 17 resting upon a base 16. E is the body of the burner nozzle 10 having an adjusting handle D and connected by a pipe 20 to the fuel tank 21' having a filler opening 22 and a pressu e gauge 23. The pipe 20 has a hand va ve f and passes through a valve 25 which is operated by an electric current being open when the current is on. 0 27 1s an intermittent electric switch havlng conducting segments 29 29 connected together by wires 30 with spaces 3l between. 26 is an electric conducting hand operated by a train of clock work and by means of the wire 28 connects the segments 29 to the motor 17. 32 is a wire connecting 29 to one of the wires C of a source of electric supply. 33 is a wire connecting 25 with the other wire C1 of the electric supply. 34 is a wire connecting 25 to 17. 35 is a wire connecting 28 and the motor 17 to an electric switch 24 controlled by the temperature of the furnace or house and thence to the wire C The operation ofthe different parts is as follows:

After the fuel is placed in 21 and under pressure, a piece of lighted waste can be thrown into the chamber l through 11 and 12 and the electric current turned on and valve F opened. The motor 17 wouldl be connected to electric supply on one side by 34 and 35 through 25 and in the other side by either or both

wires

32 and 35, 32 through 27 and 28 and 35 through switch 24 `The valve 25 is immediately Iopened by the electric current and fuel iiows to the nozzle 10 at the same time. The motor 17 starts 15 and blows an air blast to the nozzle 9, the fuel is at once lighted by waste and goes on burning until both the switches 27 and 24 cut off the current 27 because the v- Aboiler or house drops below the cause the temperature of the house or boiler is high enough. 25 would at once cut od the t'uel and 17 would stop. -las chamber l is lined with a heat-resisting and nonconducting material the temperature yinside will be above and will stay above the lash point of the fuel for some time, and before it drops below such a point the switch 27 is so adjusted as to cut in the current and the heat of the chamber will at once ignite the fue] and which by the adjustment of 27 will stay lighted long enough to reheat the chamber' 1. The spaces 31 and segments 29 and time of turning of 26 are adjusted so as to keep the temperature in l above the flush point of the fuel. At the same time if the-temperature ot the pre etermined point the switch 24 will cut in Vthe current round the switch 27 and operate the burner until such temperature 1s reached. The switch 27 is then used to keep the temperature of chamber l above the flash point of thefuel while the switch 24 controls the temperature of the boiler or house.

l do not restrict myself to the use of any special kind of a spray nozzle or intermittent switch or thermostaticall operated switch or motor or air blower. ny one of several dil'erent forms may be used and the device illustrated is to be considered as being merely an exempliication of my inven tion.

l have sought to set forth the principle of my invention and the best mode in which l at present contemplate using that prin- `ci le.

am aware that an intermittent oil burner.

using a gas pilot light has been used. l

hereitore do not make such a claim broadly ll claim: i

l. An apparatus, using liquid fuel for generating heat, for use with a furnace or a boiler, and being a combination of a combustion chamber made of heat resisting and nonconducting material ormaterials, and so constructed, with reference to the furnace or boiler, as to retain within itself a self tiring degree of temperature for some timeafter the fuel is cut oil, with means for spraying la fuel mixture into the combustion chamber, and with means for intermittently cutting on and ott the fuel mixture in such a manner that it is on often enough and long enough, to keep the temperature of the comn bustion chamber at all times above the firing point of the fuel mixture, all substantially as described.

2. An apparatus, using liquid fuel for generating heat, for use with a furnace or a boiler, and being a combination of a combustion chamber made of heat resisting and nonconducting material or materials, and so constructed, with reference to the furnace or boiler, as to retain within itself a self firing degree of .temperature for some time after the fuel is cut eti, with means for spraying a fuel mixture `into the combustion chamber, with means tor intermittently cut ting on and ott the fuel mixture in suchva manner that it is on etten enough and long enough, to keep the temperature of the combustion chamber at all times above the tirQ ing point of the fuel mixture, and with means for automatically controlling the supply ot fuel mixture so as to meet the emgencies of the *furnace or boiler, all substantiall as described.

lT lEDllltliCl FRASER MILLER.