US1245346A

US1245346A - Gas-burner.

Info

Publication number: US1245346A
Application number: US10290516A
Authority: US
Inventors: Alfred H Humphrey
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-06-10
Filing date: 1916-06-10
Publication date: 1917-11-06
Anticipated expiration: 1934-11-06

Description

INVEIVTOR. filfred liHz/m abrc v A TTORNE YZ v Patented Nov. (3, 1917.

A. H. HUMPHREY.

GAS BURNER.

APPLlCATION FILED JUNE 10. 1916.

We :7 mwr rs Allisi GAS-BURNER.

HUMP HREY,

1 pgovcinents in Gas-Burners, of which the toliowing' is specification.

" elates to improvements in .LlllS inventioi gas burners.

My improved 12m burner is particularly designed me and is especially well adapted for use in heating devices of the radiant type, for example, such as is shown in my application for Lette Patent, filed May 18,

1316, Ser. No. 98,337, although my improvements are delrable and readily adapted for use in various relations where high temperature llanies are particularly desired.

The main objects of my invention are: First. to provide an improved gas burner pted to produce a high temperature c eeond, to provide an improved gasburner adapted to procuce a high temperature flame without back firing, the burner tube below the tip being unol structed.

Third, to provide an improved gasburner capable of burning a. large quantity of gas flame oi? high temperaand of producing a ture' without streaming.

Fourth, to provide an inmroved gas burner which is practically noiseless, even when consuming gas under high pressure.

Fifth, to provixc an improved gas burner having very etiicient combustion of the gas.

Sixth, to provide an improved burner which is simple and very durable in structure.

Further objects, and objects relating to 'al details, will definitely appear J ll the detailed dcsn'ipli l is ii h the objects of my invention and means des ribed in the ecilhtation. The invention is ed and pointed out in the a preferred embodiniy invention. is clearly illustrated a coinpanying drawing, forming a. :i this specification, in which: uin is a rear perspective view of a embodying the leaturcs of my invenportion oi the Bunsen tube being away.

ll. a detail View, partially in seo Specification of Letters Patent.

lied form of my improved burner Patented Nov. 45, 1191?.

Application filed June 10, 1916. Serial No. 102,905.

tion, on a line corresponding to line 2-2 of Fig. l, showing my improved burner installed in a gas heating device of the *adiant type.

Fig. H1 is a plan view of one of my in1- iroved burner tubes.

Fig. IV is a-detail vertical section thereof on a line corresponding to line H of Fig. III.

Fig. V is a plan. view of a slightly moditube, the modification being in the shape of the tip.

F V1 is a detail plan view of another modified form of my improved burner tube, the modification being in the shape of the tip.

in the drawing; similar reference characters refer to similar parts throughout the several views, and the sectional Views are taken looking; in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the body of my improved burner comprises a top wall 1, side walls 2 and 3, the wall 2 being the front wall and the wall 3 being the rear wall, and a bottom wall l. The top wall is fiat and the side walls are uniformly spaced. The bottom wall at is inclined upwardly toward each end providing a gas chamber of decreasing capacity toward the ends of the body.

The supply pipe 5 is disposed longitudinally of the body and provided with an elbow 6 joined to the side wall 3 so that the pipe delivers to the chamber centrally and at right angles to the side walls thereof. The advantage of this is that it secures a substantially even distribution of the gas Within the chamber to the several burner tubes mounted thereon.

The Bunsen tube 7 is provided with the usual air inlets 8. The gas delivery nozzle is not shown. as its relation to the Bunsen tube will be readily midcrstood.

The bodv is prov ed with attaching ears 9 at its ends having holes 10 adapted to receive the attaching screws. The burner tubes 11 are threaded into the top 1 of the body.

These burner tubes 11 are preferably rectangular at the tip, as shown in Figs. III, IV and V, which differ slightly in shape. The tubes are provided with uniformly spaced vertical slits 12 in opposite walls adapted to receive the flat bars 13, which are arranged in the slits and Welded 0r brazed in position so that they have a heat conducting union or joint with the walls of the tube. The spaces 14 between these bars constitute unobstruct ed slot-like jet apertures extending across the tip. The bars are of uniform cross section from end to end, so that the jet apertures are also of uniform cross section from end to end.

I find in practice that very satisfactory results are secured where the thickness of the bars is substantially that of the jet apertures and the depth of the bars approximately four times the width of the jet apertures. The maintaining of the proper relative proportion in depth and thickness of the bars relative to the jet apertures is of advantage in securing the best results, that is, as when properly proportioned, no additional means are required to prevent back firing, the burner tubes being entirely unobstructed below the tips and, further, the

gas burns quite close to the surface of the tipsand without streaming, even under relatively high pressures. A further advantage of this arrangement is that the structure is practically noiseless.

The bars being effectively united with the walls of the tube to form heat conducting joints or unions therewith the heat is conducted away so that they do not become excessively heated so as to destroy them or to cause back firing.

I preferably use a non-corrodible metal and one not affected by considerable temperatures, such as certain alloys of nickel and iron.

I have shown my improved burner in Fig. II in operative relation in a heating stove or device of the radiant type, the structure there illustrated being substantially that of my application above referred to in which the radiants 15 are supported on the base 16 above the burner tubes. The base has openings 17 therein below the radiants.

In heating devices of this character it is of primary importance that the radiating elements be brought to a highly heated state and as the cross section of the radiants is small it- 'is necessary that the burners below them be highly efiicient.

My improved burner is especially de signed, as stated, for use in this relation. It is also necessary in devices of this type that the gas shall be evenly distributed to the various burner tubes or tips and my improved burner is also especiallydesigned to accomplish that end.

\Vith my improved burner a suflicient quantity of combustible mixture is passed without noise and is so distributed that an even flame of exceedingly high temperature is produced and very'perfect combustion of the gas secured. v

As stated, he necessity for screens or the like within the tubes is overcome, which is and metal bars of umior:

of advantage. as such screens choke t of the gas and. further. collect lorcig stances, such as lint and the i the cleaning of the burner at l'ltll litllt inter vals. -Any foreign matter that passes into my improved burner has unobstructed passage to the lips where it is consumed.

It is found in practice lhat with gas at normal pressures deliwrcd by the gas mains of the average city salisliu-tory results may be secured it the jet apertures are be tween the limits of twenty and forty thorn sandths of an inch. the bars being oi sub stautially the same thickness as the width of the aperturcsand the depth ot :he bars up proximately four times the width of the apertures.

With the rectangular lips it is easily pus-- sible to secure uniformity. tips and inserting the bars and brazing or welding them in place as described, satis factory joints areformed bctvseeii the bars and the walls so that the hea is readily co" ducted from the bars to the walls and d' pated, thus preventing over heating: of no bars which might induce bark tiring or lestroy or warp the bars. By this method of manufacture the burners may be cconmnically produced and the bars ma be of dil ferent material from the tubes.

I have not attempted to illustrate or describe various other modifications than those illustrated and which I might contemplate or which might be desirable to adapt my improvements to various uses, as I belie the disclosure made will enable those skilled in the art to which my invention relates to embody or adapt the same as coniflitions may require.

Having thus described my invention, what I claim as newand desire to secure by I.- ters Patent, is

1. A gas burner comprising a metal burns tube rectangular at the tip and having so tical uniformly spaced slits in opposite W2 lls thereof, and metal bars of in "form cross section disposed in said slits and united to the walls to provide heat conducting unions therewith, the spaces between the bars constituting unobstructed slot-like jet apertures of substantially uniform cross section from end to end, the thickness of the hrs being substantially that of the ap the depth of the bars being approx four times that of the jet ape 2. A gas burner comprising av me burner tube rectangular at the tip and having uni formlv spaced slits in oppos te i Ev therewith, the s1 stituting unobstructed slotof uniform cross section the tip, the depth of the llv slotting lliv Lil stzintially greater than the width of the jet apertures, the thickness of the bars being substantially that of the jet apertures.

A. gas burner comprising a metal burner tube rectangularat the tip and having uniformiy spaced slits in opposite walls thereof, and metal bars of uniform cross section disposed in said slits and united to the walls of the tube to provide heat conducting unions therewith, the spaces between said bars constituting unobstructed slotlike jet apertures of uniform cross section extending across the tip.

as burner comprising a burner tube,

and bars disposed in a uniformly spaced relation across the tip and united to the walls of the tube to provide heat conducting unions therewith, the spaces between said bars constituting slot-like jet apertures of uniform cross section extending across the tip, the depth of the bars being substantially greater than the width of the jet apertures, the thiclc ness of the bars being substantially that of the jet apertures.

5. A gas burner comprising a metal burner tube having opposed slits in the walls thereof, and metal bars disposed in said slits and united to the walls to provide heat conducting unions therewith, the spaces between said bars constituting unobstructed slot-like jet apertures of uniform cross section extending across the tip, the depth of the bars relative to the width of the jet apertures being such as to prevent back firing therethrough, the tube being unobstructed below the bars.

6. A gas burner comprising a metal burner tube having opposed slits in the walls thereof, and metal bars disposed in said slits and united to the walls to provide heat conducting unions therewith, the spaces between said bars constituting unobstructed Slot-like jet apertures of uniform cross section extending across the tip.

7 A gas burner comprising a burner tube, and bars disposed in a uniformly spaced relation across the tip, the spaces between said bars constitutin slot-like jet apertures of uniform cross section extending across the tip, the depth of the bars relative to the width of the jet apertures being such as to prevent back firing through the apertures, the tube being unobstructed below the bars. In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

ALFRED H. HUMPHREY. [L. 8.: Witnesses:

J. P. Connor, F. E. JORDAN.