US1707451A - Gas burner - Google Patents

Description

April 2, 1929- J. v. THOMAS E! XL 1,707,451

' GAS BURNER Fi led Feb. 4, 1925 JO/Y/V Y T/YOMAS BEA DOVGZMSMIWS INVENTORS A 4 2 g B" A TTORNE Y.

.7 said objectionable:

Patented Apr. 2,

UNITED sT JOHN v. THOMAS, or wnrr'rrnn, Ann "BEN noueLAss BALTHIS, or GLENDALE,

, 7 CALIFORNIA; 1

ens BURNER;

, Application filed February: 4, 1925. Serial no. 6,6i35. I

Our invention relates to an improvement in furnaces andburners therefor, and .hasas an object to simplify and render more eifiv p from sald nozzle, the resulting mixture being cient the operation of said furnaces and burners now on the marketand in'general use. e l

Many of the gas burners on the market and accord gas pressure. is almost impossible in the known devices to obtain a proper and effective mixture of air and gas, resulting in the deposit of carbon in the furnace andresulting in a serious loss in efficiency. A still further objection to the burners on the m-arketis that they frequently become clogged, which also results in a marked decrease .in efiiciency. V

By the use of our invention all the aforefeatures are overcome, said invention comprising an. exceedingly simple, efficient, durable and inexpensive device, which is economical in gas consumption, which will effectively eliminate all cars bon deposits, and which is almost impossible f to get out of order; i

It is an object of our invention to produce a burner lIl-Wl1lCl1 the number of parts is reducedto a ru1;nimum,.' and which may be installed in furnaces, for example, at a minimum cost, and at the same time afford] an economical means for running said furnaces atfull capacity and efficiency.

Another object oiour invention is to provide a gas burner in which a gas nozzle is mounted in a frame which has associated therewith an air ntake member affordmg a free and unobstructed flow; of J 1I,Wl11Ch air is deflected and concentrated about said nozzle, and directed" forwardly in a line with the flow of gas from said nozzle, theresulting mixture of air and gas being conveyed to an outlet chamberin which said mixture is deflected and concentrated to an elongated flame nozzle which'has associated therewith a deflectin member so that said fla'me will be spread out fan-shaped.

A still further object of our inventionjis toprovidea gas burner in .which' an elon- 1' gated casing, either sectional, or constructed in one continuous piece, is associated with a gas nozzle carrying frame, said casing affordinga means for concentnting the flow disclose theinte rnal construction,

of air about said nozzle, and deflecting said air to a mlxing chamber in said casing, in a straight line with the flow of the gas issuing flame may be produced, which flame is spread out fan-shaped by means of afiame deflecting member.

. Another object of our invention is to positi on "our improved" burner within a circular or other shaped member to provide ,an additionalYair' supply in order that a more thorough and intimate. mixture may be .p'rovided for combustion, thus effectively'eliminating all danger of carbon deposit It is also within the p-rovmce'of our invention to arrange our improved burners in series 'or in multiple so that any desired number may be, used, especially where a single burner will not be sufiicient toproduce the heat required. 'As is well'known, it is- "not "practical to force a burner'beyond its critical point ofefliciency, and it is therefore necessary to install abu'rner'of a larger size,

or, as just suggested, provide an added num-v ber of-such'burners. As will be obvious,

such a feature is contemplated by the use of our invention. I i

further objectof our invention is to :equip our improved burner with a means for supporting the same within one or more tubular 'or othershapedair members, such fair members being positioned within one the walls of the furnace 1th, which' said burner is adapted to be associated.

It is moreover withinthe province of our invention to provide an assembly of rectangular or other shaped airmembers, which members",'if desired,'may be equipped with a means for readily assembllng and disassembling such air members, such means, if

' preferred, comprising any desired number of groove and projectio1 i connections, positioned on said members wherever needed.

Further objects andadvantages .of our invention will become more 'a pparent 'as the description thereof proceeds; 1 f

Reference is had. to: the accompanying drawings in whichsimilar reference ,charactersdenote similar parts. In the drawings,

Fig. l is a side elevational view of our din-proved" burner, partly broken away to f Fig. 2 is a similar view of a. modification,

Fig. 3 is an end elevational view of Fig. 1, looking from left to right,

Fig. 4 1s a cross-sectional view of Fig. a on the line H,

i o is an one view an assem y members which may be used in connection with our improved burner, one of such a burners being shown in position in said members,

Fig. 6 is a fragmentary sectional View showing the use of our improved device in connection with a circular air member, said memberbeing shown in position in one of the walls of a furnace, and

Fig. 7 is a cross-sectional view of Fig. 6 on the line 77.

Describing our invention more in detail, our improved burner comprises an elongated casing, either sectional or formed in one continuous piece, and constructed of suitable material, which casing has associated therewith a frame of any preferred shape, preferably consisting of an upper member land a lower member 2, in which frame a gas nipple 12;, to which a gas pipe p is attached, is mounted in any preferred manner, a gas nozzle. N being screwed or otherwise mounted in said nipple, the numeral 3 designating the threads.

To provide for a free and unobstructed flow of the air, as will be observed from Figs.

1 and 2, the frame housing the nozzle N is of such a form as to provide for said air flow. Moreover, the air intake member i is sufliciently large, and the nozzle N is posiioned concentrically with said air intake so that an intimate mixture of gas and air may be provided, said gas nozzle projecting nto an air chamber 4, shaped as shown,

; to provide for an air flow in'a straight line w th the flow of gas 1ssu1ng from said gas nozzle. It will also be noted that the air chamber a is tapered so to concentrate and deflect the air to the mixing chamber 5, which is preferably, though not necessarily, cylindrical in shape.

The arrangement thus far described, it

will be noted, provides for the formation of an effective mixture of air and gas so that the resulting ,flame will be thoroughly efficient and will effectively avoid the deposit of soot or unconsumedcarbon, which, as is well known, is a non-conductor of heat, and renders the effect of the flame, inefficient.

The end 6 of the mixing chamber 5, as.

for convenience of assembly. The collar or annular projection 7 has positioned therein a set screw or other member 8 to provide a means for more effectively holding the outof air let chamber in'position, which outlet chainher if desired, may be associated with the 5 by means of a driving has its flame end flattened or elongated to provide a means for deflecting and concentrating the mixture so that the resuluting flame, when said mixture shall have been ignited, will be fan-shaped, thus affording a very eflicient and intense flame. If desired, the outlet chamber may be provided with a concentrating or deflecting portion 10 whereby the mixture may be efficiently concentrated and deflected to the flame orifice or nozzle F, which is preferably elon-' gated in shape, as shown in Fig. 3. To form an additional means for deflecting the flame, a deflector or deflecting member 1) either integral with the member'll, or associated therewith in any desired manner, is provided. It will be clear that the provision of said deflector, as well as the shape thereof, and the shape of the flame nozzle or orifice F, afford an excellent means for providing a thoroughly efficient flame.

In the form of our invention shown in Fig. 2, we have provided a burner in which the casing is constructed of one continuous piece, either cast out of any desired-material, such as iron, aluminum, etc, orconstructed in any manner that in practice may suggest itself.

This form of our invention has also a frame, composed, if desired, of an upper member 1 and a lower member 2, and in which frame a gas nipple a is suitably mounted, which nipple has associated therewith a gas pipe 39. The gas nozzle N is screw-threaded'as indicated at fi into the nipple a, providing a means whereby the distance to which the gas nozzle is projected into the air chamber 4 may be adjusted. As in the form shown in Fig. 1, the nozzle. N is concentric with an air intake i. The mixing chamber 5 is also preferably, though not necessarily, cylindrical in shape, and the outlet chamber 11 is provided with a deflecting and concentrating'portion 10, said outlet chamber terminating in a flame nozzle or orifice F, which outlet chamber and flame nozzle or orifice has also associated therewith a deflecting member D, the entire burner, except the gas nozzle and nipple being in this form of one integral construction.

p In Fig. 5 we have shown an assembly of air members, which, if desired, may be used in connection with our improved burner. The air members 0 are shown square in cross-section, though it is obvious that they may be ofany sliape found in practice desirable. By the use of such air members an means comprising a pair all modifications with which the any convenient number of grooves g and projections g associated therewith to provide for a ready assembly and disassembly of said air members, of any number needed. It will be clear that, if desired, the sides as well as the tops and bottoms of said tubes or inembers. may be provided with such grooves and projections. To provide a means for mounting the burner within the air members, the walls thereof may be equipped with a supporting of curved supporting devices 3, either integral with or secured to said walls in any preferred manner; and if desired, such devices may be located at the top indeed on all Walls thereof.

In use, the air members are positioned within the wall of the furnace, additional members being supplied as needed, by slipping the projections 9 within the groovesg of the members.

In the form shown in Fig. 6,.a circular air member 0' is used in connection with the burner and the furnace f, the burner being positioned as shown, with its flame end within said air member. This feature is important since the aspirating effect of such a construction produces the results hereinbefore explained;-intimate and proper mixture, highest efficiency and total lack of'carbon deposit. v s

As shown in Fig. 6, the burner is adjustably mounted in the air tube or member 0, a pair ofpegs s screwed or otherwise associated with the casing of the burner, being provided for this purpose. But it. will be clear that other means for adjustably mounting the burner in the air tube may be substituted for that shown and described.

lVhile wehave thus described our invention With great particularity, it will be obvious that the same may be modified throughout a wide range. We therefore do not propose to be limited to the exact details of construction shown and described, but reserve the right in practise'to make any and I thereof that fall within the scope of the'appended claims.

We claim as our invention:

1. In an apparatus of the class described, an air tube, a support in said tube and adapted to be longitudinally adjusted there,- in, a burner in said tube and adapted to be adjusted with said support, said burner coma skeleton frame, a gas nozzle exprising tending through said frame, a casing ex--' tending from said frame, said nozzle projecting in said to insure that there will, be no deposit which members may be and bottom of said members, or

- and positioned between the upper and lower said outlet portion, p means extending from said outlet P01131011,

names to this casing and being adapted to be adjusted relative to the longitudinal length of said casing, said casing comprising a tapered inlet portion, a. cylindrical portion and a tapered outlet portion, and a-fiattened flame nozzle extending in direct'horizontal alignment with and from said outlet portion.

2. Ina combined gas burner and air -aspirating apparatus,;a setof air tubes, means associated with said tubes for preventing their relative movement, a-v gas burner n each of said tubes, each of said burners comprising an elongated skeleton frame, a gas nozzle extending through said frame, means for adjusting said nozzlelongitudinally in said frame, said frame defining openings whereby the air may be introduced sideways thereof, a casing integral with said frame, said casing comprising a tapered inlet portion, nozzle, extending from said outlet portion arcs of said outlet portion, and a frame defiectingelement on said nozzle and also positioned between said arcs.

3. In a combined gas burner and. air aspirating means, an air aspirating 'means comprising an air aspirating tube, a casing in said tube,adjustiiig means in said tube for supporting said casingin said tube and adjusting said casing along the longitudinal length thereof, said casing with means whereby airinay be introduced laterally and then longitudinally thereof, a

gas-nozzle projecting in said casing, said caslng being gradually tapered from its air inlet to said gas nozzle to concentrate the entering air about said gas nozzle, said casing having a cylindrical portion for mixing of said tubes for adjustably supporting said burners,.each of said burners comprising a casing provided with means for admitting air laterallythereto, a gas nozzle adjustably positioned within said means, said casing.

comprising a tapered inlet portion, a cylindrical portion, and a taperedoutlet portion, a fa-n shaped flame nozzle projecting wardly in alignment with and laterally from and a flame deflecting and positioned above said flame nozzle;

a cylindricalfportion, and a tapered'outlet portion, an, elongated flame being provided.

for-' lll) Intestimony whereof we have signed our specification. f JOHN V. THOMAS. BEN DOUGLASS BALTHIS.

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