US2614620A

US2614620A - Top burner for gas ranges

Info

Publication number: US2614620A
Application number: US55092A
Authority: US
Inventors: John E Chambers
Original assignee: Chambers Corp
Current assignee: Chambers Corp
Priority date: 1948-10-18
Filing date: 1948-10-18
Publication date: 1952-10-21
Anticipated expiration: 1969-10-21

Description

Oct. 21, 1952 J. E. CHAMBERS 2,614,620

' TOP BURNER FOR GAS RANGES Filed Oct. 18, 1948 2 SHEETS-SHEET 1 'IIIIIIIIIIIIIIIIIIII INVENTOR.

J. E. CHAMBERS TOP BURNER FOR GAS RANGES Oct. 21, 1952 2 SHEETS-SHEET- 2 Filed Oct. 18. 1948 H i: :11, 2 m 1 INVENTOR.

Patented Oct. 21, 1952 1 i301? BURNERFOR GAS RANGES John E. Chamberaeshelbyville, Ind., assignor to Chambers Corporation, a. corporation of Indiana Application October 1 This invention relates to atop burner for gas ranges, and particularly to a chimney-type burner having -a plurality of chimneys fed with gas from a common source. j Y I In chimney-type burners previously known, a hollow base is provided with a .plurality of individual chimneys projecting upwardly from the hollow base, as shown in the patent to Phares, 'No. 2,144,894, for example. In such burners the burner openings are so high above the flash port thatitis necessary to provide a series of lead-up ports along the wall of one of the chimneys adjacent the I flash port so'that the'fiame from the flash port may ignite gas issuing from the leadup ports and thenfollow the lead-upports up the chimney wall toignite gas Lissuingfrom the burnerop'enings. .In brief, in :such burners the flame must be broughtfrom the flash .port to the burner openings of the chimney." The flame from the burner openings of the chimney having the leadup ports then ignites the gas issuing from the burneropenings of the other chimneys.

- It is difficult andadds to the .cost'to provide proper lead-up ports in the chimney wall. Addi tionally, the lead-up ports interfere with the combustion at the topburner 0penings.- Also, they tend to become clogged inuse andin time fail to function, thereby becoming a hazard. In consequence, it is necessary to clean these prior art chimney-type burners frequently to insure that thelead-up ports are open to permit the free passage of the ignitible, gas and. air mixture.-

In accordance with the present invention the burner ass-o shaped that the flame from theflash port will runup the outside walls of two chimneys and ignite the gas issuingfromthese chimney openings, thus eliminating'the lead-up ports and at the same time introducing a safety factor. The-shape of the interior of the burner regulates the flowof the gas-air mixture within theburnerso that a portion of this flow will be relatively accelerated and be enabled to emerge from the flash port, run through theflashtube to the pilot light and be ignited, flash back, and

run up the outside walls of the two chimneys adjacent the flash port and reach the burner openings simultaneously with the emergence of the-gas-air mixture from the burner openings, thus introducing a further safety factor.

.Each chimney of the burner of the present invention is provided with a plurality of radial flns extending outwardly from and vertically of the chimney wall to insure that the drip ring will be properly positioned so as not to interfere with or cholre off the supply of secondary air to the s, 1948, Serial No. 55,092

8 Claims. (01. 158116) a burner. These radial .flnsalso serveas wind breakers to help shield the flame which flashesv back to the burner openings fromgustsof wind, such as are caused by slamming doors, which might otherwise put out the flame.

The burner is shaped-so as to be narrow at its base and massive at-its top to provideamaximum heat radiation from the heated burner" at the top, adjacent the bottom of the cooking vessel to be heated. A further advantage ,flowing from a burnerof this construction isthatga mini-: mum of heat is dissipated along the baseof the. burner to the front of the range, where thepresence of heat isobj ectionabla- The structure by which the above advantages are attained will be .descr'ibedcin the following specification, taken in conjunction with the accompanying drawings-,in whichz Figure 1 is a fragmentary perspective view of a gas range, indicating the'relative position of the top burners which'comprise the 'subj'ectmatter of the'pre'sentinvention;

Fig. 2 is atop plan view of a top burnerembodying the invention, showing the ga'sline and a portion of the flash tube;

Fig. 3 is a cross sectionalview, taken along the line 3-3 of Fig. l, showing thetop burner and the associated gas well structure;

Fig. 4 is an end-elevatiomlooking inthe direction of the arrows along the'line 1-4 of Fig.2;

Fig. 5' is a top plan View of the 'top burner and associated gas'wellstructure, withaportion of the burner broken away to: show thewalls'tructure; Y

Fig. 6 is a longitudinal sectional view, taken generally along the line ii-'6 of Fig. "2, but showing fragmentary portions'of the'pilot burner and flash tube; and

Fig. 'lis across sectional view, taken along the line 'l'| Of Fig. 6.

In the drawings, the reference numeral 2 indi cates a gas range having a plurality of top burners 1'2 spaced from a pilot burner 4. Thefpresent invention resides entirely in top burner 3 and its associated structure. Accordingly, the description willbe substantially limited to these parts Pipe 5 is open to the atmosphere at its end ,adjacent flashtubes 6' and the gas is ignitedflat.

a plurality of integral chimneys 8 extending upwardly therefrom. Although four chimneys are shown in the burner illustrated in the drawings, it will be obvious that this number may be varied. Chimneys 8 are interconnected by means of an intermediate hollow housing 'I' which communicates directly with hollow base. I. Housing I and all chimneys 8 have a common outer wall 9 which constitutes the perimeter of the burner. A partially restricted vertical opening I9 leads fro'mintermediate housing 'I' to the interior of each chimney 8 so that the flow of gas from hollow base 1 into chimneys 8 is somewhat impeded.

A series of burner openings II extends around the perimeter of each chimney adjacent its top. Eachchimneyis also provided on its outer wall with a pair of radial flns I2 which extend vertically throughout the length of the chimney. Fins I2 of each pair are spaced apart a distance of"'a'pproximately 90 for a urpose hereinafter described. I.

- Hollow base '1 is comparatively narrow, as seen in Figs. 4 and '7, and side walls I3 and I4 are curved'outwardly and upwardly to form a wide bottom for chimneys 8. This construction concentrates the mass of top burner 3 at its top, thereby causing the maximum heat radiation of the heated burner to take-place at the top, adjacent'the cooking vessel to beh'eated.

Chimneys 8, in the embodiment of the invention illustrated, are arranged in pairs on opposite sides'of intermediate housing I. Wall 9 is curved'inwardly between adjacent chimneys, and base I extends beyond the portion of wall 9 which joins the two outermost chimneys 8. A flash port, I 5 extends through the top wall I6 of hollow base 1 between the two outermost chimneys near the point where wall 9 merges with the top of base-1. Flash tube 6 has a depending lug I'I near its end remote from pilot burner 4, and this lug fits into flash port I5. A bore I8 extends vertically through lug I! and the adjacent wall of flash tube 6 so that gas will flow from hollow base I, through bore I8, and through flash tube 6 to the pilot light.

The opposite end of base I merges into a goose neck pipe I9 through which a mixture of gas and air is fed into the burner. A coupling 29 threaded into an inlet port 2| in the end of goose neck pipe I9 connects it to a gas line 22. The flow of gas into pipe I9 is controlled by a conventional valve (not shown). Goose neck pipe I9 has an air opening 23, as seen in Fig. 2,

the eflective area of which is controlled by a flat plate 24 pivoted to pipe I9 by means of a screw 25 Plate-.24 may be fixed in any adjusted position, relative to air opening 23, by tightening screw 25.

The'cross sectional area of goose neck pipe I9 increases gradually from the inlet end to the point where it merges with hollow base I. Base 1 "is of approximately uniform cross sectional area throughout its length so as to form an unobstructed passageway for gas from pipe I9 to ings II,

flash port I5. This causes the gas to fill hollow base I before it starts to fill intermediate hollow housing I. The gas flows upwardly into housmg I at the same time throughbore I8 to flash tube 6.

Restricted openings I 0 leading from intermediate housing 1 into each chimney 8 offer just enough obstruction to the flow of gas that the initial flow of gas to flash tube 6 has time to reach the pilot light, be ignited, and flash back 'to flash port I5 as chimneys 8 are filled with gas.

The gas begins to flow through burner openings I I at approximately the same time that the flame flashes at flash port I5. This flame strikes wall 9 adjacent flash port I5 between the projecting walls of the two outermost chimneys, and runs up the wall to burner openbeing guided in that direction by the projecting walls of the chimneys which also shield the flame from gusts of wind. The flame running. up the wall strikes the gas issuing from burner openings II of neys and ignites it. The flame from the two outermost chimneys ignites the gas issuing from the other chimneys. There isonly a very short interval of time between the flash of flame at flash port I5 and the ignition of all chimneys of the burner.

Each burner 3 is encased in a gas well 29' having a flanged top 21 secured to the underside of the top wall 28 of range 2 by means of screws 29. A drip ring 30, apertured as indicated at 3| to fit around chimneys 8, is positioned in each well 26 with its upper flange resting on a ledge 33 of top wall 28. A top burner grate 34, of any suitable construction, is positioned over drip ring 39. The primary purpose of drip ring 30 is to serve as a catch-all to protect the bottom of gas well 26 from anything that may. spill or boil over from a cooking vessel on the range.

In addition to the primary air supplied through airv opening 23, each burner requires an additional supply of secondary air adjacent its burner openings for efiicient operation. In order to insure an adequate supply of secondary air around each chimney the aperture in the base of drip ring 30 is shaped to conform to the clover-leaf shape of burner 3. The inner edges of the aperture flt closely against radial fins I2. The provision of two fins spaced approximately apart on each chimney makes it impossible for the inner edge of drip ring 30 to hug any portion of the periphery of any chimney 8 so closely as to choke ofi the secondary air supply. Fins I2 maintain the inner edges of drip ring 30 at a uniform distanc from wall 9 and thereby insure an adequate supply of secondary air around each chimney.

Drip ring 30 has an upstanding flange 35 which extends above thelevelof burner openings I I and provides additional protection against Wind so that the flame from the burner will not be blown out by gusts of wind caused by the slamming of a door or otherwise.

Although I have described a preferred embodiment of my invention in considerable detail, it will be understood that the description thereof is intended to be illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of the invention. Accordingly, I do not desire to be limited .to the exact structure described.

I claim:

A top burner for gas ranges comprising a that it flows forwardly the two outermost chimhollowbase' having a'horiz'ontally disposed topwall, -an inlet port "ioradmis'sion of gas to one end of said base, aflash port adjacent the remote end ofsaid'bas'e, {saidbase forming an unobstructedpassageway for theflow ofgas'to'said flash port, a hollow, intermediate housing above the-top wall of said base in directcommunication'therewith, and a plurality :oi' chimneys having' burner openings abovefsai'd intermediate housing, said chimneys being interconnected by said intermediate housing. i

2. 11A top burner for gasranges comprising a narrow hollow base having a'horizontally disposed top wall, a gasinlet atone endof-said base and a flash port at theother, said hollow base forming an unobstructed passageway for the flow of gas from said inlet to said flash port, a plurality of chimneys extending upwardly above said top wall from each side of said hollow base, said! chimneys havin burner openings adjacent the topathereoi, the v side'of said base being adjacent to and on'oppositelsidesf ofl 'said flash port and the portions of outer Walls'otthe said chi' fneys' closest to {said 'flash} port "being curved inwardly towards each other above said flash port, thereby forming a recessed passageway between said chimneys. and adjacent saidflash'port to'guide a flame from said flash port to said burner openings.

3. A top burner for gas ranges comprising a hollow base having a horizontally disposed top wall and a vertically disposed outer wall rising from said top wall, an inletport for admission of gas at one end of said base, a flash port at the opposite end of said base extending through a portion of said top wall, said hollow base forming an unobstructed passageway for gas from said inlet port to said flash port, a plurality of extending upwardly from said 1 pairs of chimneys base, the chimneys of each pair being positioned adjacent opposite sides of said base with the outermost pair of chimneys being positioned on opposite sides of said flash port, each of said chimneys having imperforate lateral walls and a plurality or burner openings adjacent, its top, the outer wall of said burner being curved inwardly between said two outermost chimneys to form a recessed passageway extending vertically from said top wall portion adjacent said flash port to a region adjacent said burner openings, and means forming vertically disposed, partially restricted passageways for gas leading from said hollow base to each of said chimneys.

l. A top burner for gas ranges comprising a hollow base having a horizontally disposed top wall and a vertically disposed outer wall rising from said top wall, an inlet port for admission of gas at one end of said base, a flash port at the opposite end of said base extending through a "portion of said top wall, said hollow base being of uniform cross section and forming an unobstructedpassageway for gas from said inlet port to said flash port, four chimneys of substantially cylindrical shape extending upwardly from said base, said chimneys being arranged in pairs, the chimneys of each pair being positioned adjacent opposite sides of said base with the outermost pair of chimneys being positioned on opposite sides of said flash port, each of said chimneys having imperforate lateral walls and a plurality of burner openings adjacent its top, the outer wall or" said burner being curved inwardly between said two outermost chimneys to form a recessed passageway extending vertically from said top wall portion adjacent said flash port to outermost, chimneys on each l end of said base, a

6'1 a reg-ion adjacent said burner openings whereby 1 a flame issuing from said flash portwill be directed'upwardly to thearea adjacent said burner openings, and'm'eans forming vertically disposed,

: partially restricted passageways for gas leading irom'saidhollow baseto each of said chimneys.

5. A topburner for gas ranges comprisinga hollow base having a horizontally disposed top wall, an inlet port for admission .of gas at one flash port at the opposite end of said base extending through aportion of said top wall, said hollow base forming'an un-' obstructed passagewa'y'for gas from said inlet port tosaid flash port, a plurality of pairs of 1 chimneys extending upwardly from said base,

the chimneys of each pair being positioned ad- ,iacent opposite sides of said base with the outermost pair of chimneys being positioned on 0pposite sides 1 of said flash port, each of said chimneys having imper'forate lateral walls and a plurality of burner openings adjacent its topga hollow intermediate housing above said base and communicating directlywith. said base, and

, means formin vertically disposed, partially reintermediate housing to stricted passageways for gas leadingirom'said v each of said chimneys, the-outer wall of said intermediate housing being curved inwardly "between said two outermost chimneys to form a recessed passageway'close to said flash port, and vertically disposed fins projecting outwardly from said two outermost chimneys adjacent said flash port, said fins cooperating with said recessed passageway to guide a flame from said flash port to said burner openings.

6. A top burner for gas ranges comprising a hollow base having a horizontally disposed top wall and a vertically disposed wall rising from said. top wall, an inlet port for admission of gas at one end of said burner, a flash port extending through a portion of said top wall at the opposite end of said burner, said hollow base providing an unobstructed passageway for gas from said inlet port to said flash port, a plurality of chimneys extending upwardly from said hollow base, the said flash port being adjacent the bottoms and intermediate a pair of said chimneys, each of said chimneys being laterally imperforate and having a plurality of burner openings adjacent its top, the outer walls of said pair of chimneys being curved inwardly above said flash port and joined by said ,vertically disposed wall, thereby formin a recessed passageway between said chimneys extending from said top wall portion adjacent said flash port to a region adjacent said burner openings to guide a flame from said flash port to said burner openings, and means forming a vertically disposed, partially restricted passageway for gas leading from said hollow base to each of said chimneys, the degree of restriction being such that when gas is admitted to said hollow base through said inlet port, a portion of said gas will'flow to said flash port, be ignited and have its flame reach the burner openings at approximately the same time other portions of the gas passin into said chimneys begins flowing through said burner openings into the atmosphere.

7. A top burner for gas ranges comprising a hollow base having a horizontally disposed top wall and a vertically disposed wall rising from said top wall, an inlet port for admission of gas at one end of said burner, a flash port extending through a portion of said top wall at the opposite end of said burner, said hollow base providing an unobstructed passageway for gas from said inlet port to said flash port, a plurality of chimneys extending upwardly from said hollow base, the said flash port being adjacent the bottoms and intermediate a pair of said chimneys, each of said chimneys being laterally imperforate and having a plurality of burner openings adjacent its top, the outer walls of said pair of chimneys being curved inwardly above said flash port and joined by said vertically disposed wall, thereby forming a recessed passageway between said'chimneys extending from said top wall portion adjacent said flash port to a region adjacent said burner openings to guide a flame from said flash port to said burner openings, and means forming a vertically disposed, partially restricted passageway for gas leading from said hollow base to each of said chimneys.

.8. A top burner for gas ranges comprising a narrow hollow base having a horizontally disposed top wall and a vertically disposed wall rising from said top wall, a gas inlet at one end of said base and a flash port at the other extending through a portion of said top wall, said hollow base formingan unobstructed passageway for the flow of gas from said inlet to said flash port, a plurality of chimneys extending upwardly from each side of said hollow base, said chimneys having burner openings adjacent the top thereof, the outermost chimneys on each side of said base being adjacent to and on opposite sides of said flash port and the outer walls of said chimneys being imperforate and curved inwardly and joined by said vertically disposed wall to form a recessed passageway between said chimneys extending from said top Wall portion adjacent said flash port to a region adjacent said burner openings, said recessed passageway being eifective to guide a flame from said flash port to said burner openings.

JOHN E. CHAMBERS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS