US1185771A - Gas-burner. - Google Patents

Description

C. F. COLE 8a Q. CARR.

GAS BURNER.

APPLICATION FILED AUG. 30 I9I5.

1,185,771. mnted Jun@ 6;.1916.

2 SHEETS-SHEET I. l2?! witnesses ur" 12011110. CARR.

GAS BURNER.

' APPLICATIQN FILED AUG30J 17915.

Patented June 6, 1916.

2 SHEETS-SHEET Z.

CFC'OLE w @CHER U TE sTri'i-Es PATENT GAS-BURNER.

' Specification of Letters Patent. i Patented June 6, 1916.

' Application med August 3o,y 1915. seriaiNo. 48,062.

To all 'whom t may concern Be it known' thatl we, CHARLES F. lCOLE and QUINGY CARR, citizens' of the United States, residing at Huntington, in theicounty of Cabell and State of West Virginia,y have invented certain new and useful Improvements in Gas-Burners, of whichthe following is a specification, reference being hadto the accompanying drawings. v

rlhis invention relates to improvements in gas burners, and has for its primary. object to provide an improved burner 'construction which is applicable to various types of gas stoves or grates, and will produce a maximum of heat from a minimum consumption of fuel. Y

Another object of the invention .is to provide a burner for thexab'ove purpose having independent iiues or passages, `each provided withV jetorifices or outlets, and improved means for 'independently controlling and regulating the supply of gas to said flues or passages. i

Our invention has for another very important obi ect to provide a gas burner. of the above character and vimproved. means for mounting and utilizing an air mixer in connection therewith. l n v l It is. still another object of our'4 invention 'to provide an improved mixer construction having a plurality of gas receiving chambers, the gas from the respective flues of the burner being alternately discharged'y into the several Vchambers of the mixer.

The invention has for an additional object to generally improve the construction of gas burners of the above character whereby the efficiency, durability, and serviceability of such burners is materially enhanced.

With the above and other objects inview, our invention consists in the novel features of construction, combination, and arrangement of parts to Vbe hereinafter more fully described, claimed, and illustrated in the accompanying drawings, in which,

Figure 1 'is a front elevation of a portable heating stove, a portion of the same being broken away to show our improved burner mounted therein; Fig. 2 is a plan view,

' partly in section, of the burner body; Fig. 3

is an lenlarged vertical section taken Avon .the line 3-3 of Fig. 1; Fig. 4 is a transverse section taken on the line 4 4: of Fig. 1; Fig. 5 is a section taken on the line 5 5 of Fig. 3; Fig. 6 is a detail elevation of the gas cock or valve for admitting the gas to the chaintypes Vof heating or known in 4the art.

bers of the suPPlyhead; Fig. 7 isa-verticalI sectionk similar toF ig. 4 showing a modified .construction and mounting ofthe mixer; i Fig. 8 is a section taken on the line 8-81of Fig. 7; Fig. 9 is a detail perspective 'viejvw of one; ofthe metal plates fro'mwliich the mixer is formed, illust'rating a slightly different construction*V ofthe saine from that shown in Fig. 8; Fig. 10 is a transverse section illustrating another form of the mixer;

Fig. 11 is a longitudinal section taken on zther line e11--11 of Fig. 7; and Fig. 12 is a detail section of the construction shownin Fig. 9.

Referring in detail tothe drawings and more particularly to Figs. 1 to 6 thereof, 5 designates a portable heating stove which may be ofany ordinary or approved con- 'rstr1iction, the same including a curved .rel fleeting back plate indicated at 6, or an as-v bestos wall which is frequently employed instead of such a reflecting plate. While we Y have illustrated .our invention employed in connectionl with such'- a Vportable heating stove, it is, nevertheless, to be vborne in mind, that the same is not limited to such specific applicationand use, but may also be utilized as the flainefproducing vadjunct of various cooking `stoves now .Within the openfront of ythe stove and l at either the top or bottom thereof, as the `case maybe. our improved burner generally .v indicated at' 7 is horizontally arranged. `The body of this burner. ismade up of a plurality of sections, as clearly `illustrated in Fig. 4. vThese body sections include an outer sheet metal plate 8 which is oit-channelV form inv cross-section andyis providedv .upon its longitudinal `edges withvthe 'outwardlyprojecting flanges 9. This channel shaped plate forms thefront andV rear. walls "1.0 v'and 1v1, respectively, andthe top. wall', 12 of theburner body. The top wall 12 is pro-v vided at spaced points with a pluralityV of yiet orifices, in which the burnervtips indicated at 13 of any suitabletype, are conveniently secured. ItA will be understood that if desired, the wall 12 maybe punched out- ,wardly at intervals to form the tips, the

apexes of. which are perforated to provide jet openings. second longitudinally extending lchannel'shaped sheet metal plate 14 is arranged within the 'outer/body plate 8. The body wall 15 'of this plate 14 extends between the .front wall of the body plate 8,

Yand a base orbottom wall `16. The longitudinal edges of the channel plate 14 are also flanged outwardly as at 17. The longitudinal edges of the bottom wall 16 are bent over and clenched upon the flanges 9 and 17 of the channel plates, as indicated at 18. Thus the several parts of the burner body may be securely held against relative movement in their assembled position.

The top wall 12 of' the burner section 8 is formed with spaced openings 19 which are alternately arranged with respect to the burner tips 13. lt will, however, be understo-od that if desired, the openings and burner tips in the wall 12 may be arranged in multiples of two or more. Through the openings 19, the burner tubes 20 which are integrally formed upon the wall 15 of the body member 14, extend, said Ylatter tubes projecting from the face of the wall 12 to substantially the same extent as the tips 13. The tubes 20 are provided with suitable jet ti s.

Ilt will be seen, from the above description, that the burner is thus provided with non-communicating longitudinally extending flues or passages, and these flues are closed at one of their ends by the plates indicated at 21 which are set in the ends of the flues and brazed or otherwise permanently secured to the walls thereof. Each of these end plates is provided with a central in teriorly threaded boss 22.` 23 designates the supply head which, when connected to the burner body, extends at right angles to the plane of said body. This supply head is provided at one end with an interior central longitudinally extending partition wall 211 which divides the same into separate compartments or chambers 25. The supply head which is also preferably constructed of sheet metal, is further provided at an intermediate point with a valve chamber 26 which extends transversely of the head and is joined or connected to the opposed wallsthereof. The wall of this valve chamber forms the bottom wallsof the upper chambers of the supply head. The lower portion of theY supply head is thus separated from the upper chambers 25, and constitutes a common supply chamber 27 to which the gas is admitted from the service pipe. The walls of this lower chamber are provided withopeningsV 28 to any one of which the service pipe may be conveniently connected, the other openings being closed bymeans of suitable. plugs. The supply head is held in connection with the end of the burnerV body by means of the hollow tapering tubes or pipes 29, the larger ends of which are closed and provided with the threaded extensions 30. These extensions are adapted for threaded engagement in the respective plates 21 which close the ends of the burnerflues or passages. It -will be understood, from reference to Fig. 1 of the drawings, that the supply head is arranged exteriorly of the stove or grate. The tubes or pipes 29 thus serve a double purpose, namely, to afford means for connecting the head to the burner body and also to support the burner body at one of its ends upon the wall of the stove. The stove wall is provided with openings through which these tapering tubes extend, the opposed walls of the chambers 25 of the supply head being also formed with'suitable openings for the reception of these connecting tubes. The smaller ends of the tubes 29 project outwardly through the outer wall of the supply head and are threaded to receive the cap nuts 31, suitable packing washers 32 being arranged between said nuts and the wall of the supply head. Each of the plugs or tubes 29 is provided with an opening 33 through which gas may enter from the respective chambers of the supply head to the bores of said tubes. The outer smaller ends of the plugs 29 are also interiorly threaded Vto receive the valve stems 34, the inner ends of which are tapered or pointed for engagement with the valve seat 35d which surrounds an opening or passage formed through the closed end of thetubular plug and the extension 30 thereon. When the valve stem is engaged upon its'seat, it will be obvious that the supply of gas from the supply head to the flow or passage of the burner is completely cut off. Thus the flow or volume of gas enteringY the burner flues from the respective chambers of the head may be independently varied and increased or decreased,

as may be found desirable. The cap nut 31 is also provided with a threaded opening f'or engagement by the threads of the. valve stem, and within the cap nutbetween the end wall thereof and the end of the tubular plug, suitable packingfmaterial is arranged. Thus, an absolutely secure connection of' the Vhead to the burner body is assured and a gas tight meeting between the same effected.l

`Within the valve chamber 26 of the burner Y head, above referred to, an elongated longitudinally tapering supply controlling valve cock 36 is rotatably mounted. The intermediate portion of this conical valve 36 is of hollow formation,` the solid Vend portions thereof being mounted in the opposed walls of the supply head. The smaller end of the valve is provided with a central threaded recessor socket to receive a clamping screw indicated at 37. Between thek head of this screw and the wall of; the supply head, a suitable washer 38 is arranged. Tothe other or larger end of the valve, a handle or other suitable operating means 39 is connected.

The wall of the valve chamber 26 is provided in its lower portion with a central slot or opening 40 which is at all times in communication with a similar slot 41 formed in the valve 36 and communicating with the hollow intermediate portion thereof.' At

an opening 45 in the wall of the valve chamber which affords communication between the interior of the hollow valve member and the other chamber of the supply head. When these latter openings are in registration, the slot 42 is still in register with the slot 43 of the chamber wall so that gas is` being simultaneously supplied to both chambers of the supply head.y The gas is preferably supplied first to the outermost flue of the burner through the slot 4 2 in the valve member, in view of the fact that less time is required for the gas to iill said flue and issue from the tubes 19 than is consumed in filling the rear flue of the burner, from which the gas finds its outlet through the jets 13. In

this manner, it will be seen that we have provided means for separately controlling and regulating the supply of gas to the burner flues. Y v

In connection with a gas burner of the improved construction above described, we have devised a mixer whereby airmay be mixed with the gas in order to obtain a blue flame, and quick and perfect combustion.

`Inthe use of such a mixer, the burner is arranged within the stove or grate with the jet tips projecting upwardly, and in order to provide a support for the mixer, the base wall 16 of the burner, is extended upwardly across the end of the burner body opposite to the supply head, to a slight distancel above the body wall 12, as indicatedV at 46. This sheet metal wall 16 is `then extended longitudinally of the burner in parallel relation to the wall 12, as shown at 47, andv at the opposite end of the burner is extended down` wardly as at 48, said latter portion being provided with spacedropenings to receive the tubular plugs 29. The extremity of this portion 48 of the sheet metal plate is then suitably secured to the end of the wall 16.

Our improved mixer is preferably constructed from a single sheet metal plate which is bent into the cross-sectional form illustrated in Fig. 4. This plate, indicated at 49, has its longitudinal edge portions engaged upon each other. The intermediate portion of this plate is folded upon itself to produce a longitudinally extending rib 50. Between the opposed walls of this rib, the edges of the portions 49 of the plate are inserted. Metal clips indicated at 51 are bent around the ends of the portions 49 `of the sheetv metal plate and riveted or otherwise 'A permanently secured thereto. The portions 52 of this sheet metal plate which constitute the opposed side wallsof the mixer are bent LIVintotl'ieforrn shown, the portions 49 of said plate which are arranged between these walls being similarly bent. Thus, there is produced two separate'and distinct longitudinally extending chambers, the upperI portions '53 of which are quite narrow, while the lowerportions thereof indicated at 54, 'grad' ually increase in width to the bottom of the mixer. The top walls ofthe portions 52 cf theseV mixing chambers are perforated as shown at 55, and at this point, the -mixtureA of air and gas issuing lfrom said chambers `is ignited. The vertically extending end vportion 46 of the mixer support is formed with an opening tor receive a fastening bolt 56 whereby the'burner and the support may be rigidly mounted and held upon one of the end wallsofthe stove body. Thelongitudinally extending portion 47 ,of the mixer support is formed with a central yslot 5T which is designed to receive the rib 50 on the Y y bottom of the mixer, It willbe understood that the ends of the mixing chambers'are closed or plugged by meansof suitable metal plates which Aare vindicated at 58. It will also be obvious that if desired, instead 'of forming this mixer from a` single sheet of metal, the mixing chambers may be formed from individual metal sheets, the edge of one sheet being formed with the rib 50 to receive the other edge of said metal sheet and the edges of the metal sheet which constitutes the other mixing chamber. VUpon each side of the longitudinally extending slot 57 in the horizontal lsupporting wall 47 a 'plurality of openings 59 are. formed.. Similar openings 6 0 in the bottom of the' mixer which communicate with the refspec` tive chambers thereof, coincide with the cor responding openings 59. In order to prop erly supply the gas from the chambers of.

vthe Vburner bodyto the respective mixing chambers,`the ljet rtips 13 and 2O Yare arranged i'n staggeredrelation. These two Vseries of gas tips are arranged immediately beneath the respective series of openings in the supporting' wall 47 upon which lthe mixer is mounted so that the gas is separately supplied proper volume to each of the mixing chambers. As the gais enters the mixing chamber, it becomes mixed with the air also entering through the openings 60 in the bottom walls of said chambers so that 'when ignited at the top of the mixer, perfect produced.

.In Fig. '7 of the drawings,v we have illusioo trated a slightly modified construction,

wherein the mixer support instead of being formed as a continuation of the bottom wall 16 of the burner, is constructed from a separate and distinct sheet metal plate. This plate includes the upper and lower parallel portions 61 and 62, respectively, which are connected by the vertical portions 63, one of said vertical portions being connected to the opposite end of the sheet metal plate. Thevburner, indicated at 64, is mounted upon the lower horizontal portion 62 of the support, the edges of which are bent inwardly and crimped upon the turned-over edges 17 of the base wall of the burner body. The upper longitudinal portion 61 of the mixer support is provided upon its longitudinal edges with the upstanding fianges 65, and also has al series of openings 66 formed therein between said flanges. The mixer is constructed from two sheet metal plates, one of which is bent upon itself at intervals to formV partition walls'67 of double thickness. The portions of the metal plate between these Walls, indicated at 68, constitute the front wall of individual gas receiving com* partments. These latter walls extend above the partition walls and are bent inwardly or rearwardly over the several compartments, as clearly shown at 69.V The other section of the mixer is also formed from a single sheet metal plate which is bent at its ends to produce the outer wall 70 of the end compartments of the mixer. This metal plate is also bent upon itself at intervals to produce spaced vertical ribs 71, the portions of the plate between said ribs constituting the rear walls 72 of the mixing chambers. rI'he edges of the partitions 67 which are formed in the other sheet metal plate above referred to, are engaged between the opposed walls of these ribs. From the lower edges of the chamber walls 72, the metal plate is extended laterally, and forwardly as .at 73, to form the bottom walls of the mixing chambers, and between these end walls, ribs 74 are formed in the plate in the same manner as the ribs 71. lThe forward edges of these bottom walls are bent over and crimped upon the flanges 71 formed upon the lower edges of the front walls 68 of the several chambers or compartments of the mixer. At opposite ends of` the mixer, outwardly projecting flanges 75 are formed upon the bottom plate thereof and upon said flanges tongues 76 which are cut out of the vertical portions 63 of the mixer support and struck upwardly are adapted to be securely crimped or clamped whereby the mixer is held against longitudinal shifting movement with relation to the support. In

the bottom wall of each of the mixing chambers, an opening 77 is formed. It will beV noted that the rearwardly projecting extensions 69 which are formed upon the upper ends of the front walls 68 of the Vmixing chambers are slightly spaced at their extremities .above the flanges' 78 which are formed upon the upper edges of the rear walls of the mixing chambers. Through Vclosed still another type of mixer.

this space, the mixed gas and. air issues. 1n the use of this type of mixer, the same is mounted upon the upper longitudinally extending portions 61 of the support, the ribs 74 spacing the bottom of the several mixing chambers from the support so that air may freely enter said chambers through the openings in the bottom walls thereof and the relatively large openings 66 which are provided in the horizontal portion 61 of the support. The jet tips communicating with the fiues of the burner extend upwardly through these latter openings. The tips communicating with the respective flues are alternately arranged so that gas will be supplied from one flue to one chamber of the mixer while the next adjacent chamber is supplied from the other flue of the burner.

InFig. 9, we have illustrated a slightly modified construction of the sheet metal mixer, wherein the section of-the mixer in which the partition walls are formed is provided at one end of the opposed portions of the sheet metal plate constituting each of the walls with oppositely projecting clips or tongues 79, one of said clips extending beneath the contiguous edge of the top wall 69 of the adjacent mixing chamber while the other clip in the same chamber is disposed over and upon the upper surface of said top wall. Thus, these top walls are also, at all times, maintained in fixed relation to the upper edges of the rear walls of the several mixing compartments or chambers.

YIn Fig. 10 of the drawings, we have dis- In this construction, the mixer is formed from a single integral metal casting. This casting is of a general rectangular form, the same 53 being hollow and provided with a series of spaced partition walls 80 which divide the interior of the mixer into a plurality of gas and air receiving compartments. At the upper end of the mixer, the same is formed with an inclined or obliquely disposed rib or flange through which out-lets, indicated at 81, communicating with the several compartments are formed. Upon the base of the mixer, the depending nipples 82 are f 'X formed to receive the gas from the tips of the burner. It will be understood that the gas is alternately supplied from the respective flues of the burner to the mixing compartments of the mixer, in the manner hereinbefore described.

From the foregoingv description, taken in connection with the accompanying drawings, the construction, manner of operation, and several advantages of the illustrated embodiments of our invention will be fully and clearly understood.

It will be apparent, that the burner and mixer in either of the several forms above described may be constructed in.. circular formby simply resorting to` minor alterations in the construction of theseveral parts, as will be obvious. By arranging and mounting the mixer above the burner, the liability of back-fire into the mixing chamber is minimized and in case such back-fire should occur, it Would be less liable to ignite the floor covering and result in a serious conflagration, owing to the comparatively great distance of the mixer from the floor. It is also manifest that as the mixer is constructed entirely of .sheet metal, the same canbe produced at very small manufacturing cost and Will not add materially to the expense incident to the use of the burner.

It is to be understood that in the practical development of our invention, various alterations in the form, proportion, and arrangement of the several parts, Will be found necessary, ovving to the contingencies of the particular cases, and- We therefore reserve the privilege of resorting to all such legitimate changes as may be fairly embodied Within the spirit and scope of the invention as claimed.

Having thus fully described our invention, what We desire to claim and secure by Letters Patent is 1. A gas burner including a body having a gas receiving flue provided in one of its Walls With a plurality of jet orifices, in combination with a gas supply head, a tapered tube connected to one end of the burner iue, means for detachably securing the supply head upon said tube, a supply controlling valve mounted in the head, and a valve mounted in said tube to regulate the supply of gas to the burner flue.

2. A gas burner including a body having non-communicating gas receiving flues each provided With a plurality of jet oriices, in combination with a gas supply head having individual gas receiving chambers for the respective flues of the burner, tubes detachably connected to one of the ends of the respective burner iiues, means for removably securing the supply head upon said tubes, a valve mounted in said head to control the supply of gas to said chambers, and a needle valve mounted in each of said tubes to regulate the supply of gas to the respective burner iiues.

3. A gas burner including a body consisting of a bottom Wall and vertical channelshaped end Walls,.gas receiving'fiues supported by said bottom Wall between the end Walls of the burner body, in combination With a supply head having individual supply chambers for the respective burner flues, tubes detachably mounted in one of the vertical end Walls of the burner body and 1n the corresponding ends of the respective flues, means for removably securing the gas supply head upon said tubes, a valve mounted in said head to control the supply of gas 4. A gas burner including a body having Y a bottom Wall, vertical end Walls and a top Wall, burner flues mounted upon the bottom Wall between the end Walls of said body and having jet orifices spaced from said top Wall, said top Wall having openings therein registering with the respective jet orifices, a mixer mounted upon the top vvall of the burner body and having a plurality of mixing chambers to receive the gas from the respective burner flues, and gas supply means connected toone end of each of the burner flues.

5. The combination With a burner body provided With non-communicating ues and means for independently controlling the gas supply to said flues, of a. mixer having a plurality of mixing chambers each provided with an inlet and an outlet, means constituting an integral part of the burner body for supporting the mixer in position above the same, and alternately arranged outlets communicating with the respective fiues of the burner to supply gas to the individual chambers of the mixer.

6. The combination with a burner body .provided vvith non-communicating fiues and means for independently controlling the gas supply to said flues, of a mixer having a plurality of mixing chambers each provided With an inlet and an outlet, a support constituting an integral part of the burner structure extending above and in parallel relation to the flues, means for removably mounting the mixer upon said support, and alternately arranged` outlets in communication With the iiues of the burner to supply gas to the respective chambers of the mixer.

7. A gas burner including a body comprising channel body plates forming noncommunicating flues and a sheet metal back plate constituting one side of the burner body and securing said channel plates together, said back plate being extended across the ends of said flues to close the same and having a portion disposed in parallel relation to the body to constitute a support, alternately arranged outlets communicating With the flues'of the burner, in combination With a mixer provided with a plurality of mixing chambers removably mounted upon said support, each of said chambers having an inlet and an outlet, said inlets being arranged over the outlets of the burner flues to valternately receive the gas from the respective flues.

8. A gas burner including a sheet metal body plate, sheet metal burner flues secured upon said body plate, each of said flues being provided With a plurality of jet orifices, said body plate having a supporting portion extending in parallel relation to the burner liues and spaced from the jet orifices, gas supply tubes removably mount ed in the corresponding ends of the body plate and the burner iues, and a mixer secured upon the supporting portion of the body plate of the burner and provided With a plurality of mixing chambers to receive the gas from the respective burner lueS, the bottom Wall of each mixing chamber and the body plate of the burner having coinciding openings in alinement With the respective jet orilices of the burner.V

9. A gas burner including a body having a sheet metal body plate provided With vertical channel-shaped end portions, burner flues mounted between the said end portions of the body plate and each having a plurality of jet orifices, said body plate having a portion connecting said end portions and disposed in spaced parallel relation to the burner flues, said connecting portion of the body plate being formed With a central longitudinally extending channel and having openings therein on each side of the channel, gas supply means connected to one of the vertical ends of the body plate and the corresponding ends of the iues, in combination with the mixer having a central rib for removable engagement in the channel of the body plate, said mixer being provided with a plurality of mixing chambers each having an opening in its bottom Wall to register with one of the openings in the body plate to receive the gas issuing from the respective jet orices.

CHARLES F. COLE. QUINCY CARR. Witnesses:

H. C. HULE, ETHEL OWENS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner et Potente.

Washington, D VG.

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