US1486665A - Burner for radiant gas heaters - Google Patents

Description

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BURNER FOR RADTANT GAS HEATERS Filed July 26 1922 VENTERE- ff f/ @d EY j H ATT EEN Y- 2 Shams-Sheet 2 Patented lidar., lil, @2d

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WHEELENG, WEST V3I .EL CORPORATION OF WEST 'VRGENJLL eppncann sied tary ae, ieee. serial in. armas.

To all whom t may concern:

.Be it known that we, Wimmer W, l-loLLowAY and HENRY nenne, citizens of the United States of America, and residents, respectively, of Wheeling, county oi Uhio, and State of West Virginia, and Martins v-lllerry, county of Belmont, and State ol (lhio, have invented certain new and useiul lmprovements in Burners for Radiant Gas Heaters, oi which the following is a speci ication.

This invention relates broadly to gas burners, and more specically to a burner for gas heating stoves,

The primary object ol the invention is to provide a burner lor domestic gas heating stoves of the open-front radiant type in which; incandescent tubular radiante ol clay or composition material' are employed for radiating heat, which will eciently and without back-dashing supply proper and readily combustible mixtures of gas and air either with gas supplied at high or low pres sure, and which, therefore, 1s equally eldicient in operation with natural or articial A further object is to provide a burner ot the character mentioned which embodies therein rigidly-supported gas-feeding grids through which gas is supplied to radiante located thereover.

A still further object is to provide a gas burner having a construction vwhich insures a substantially uniform and even distribution throughout its length of the gas delivered thereto. v

Another object is to provide a gas burner of the character referred to which has associated therewith a simple and ecient form ot mixer whereby air is regulatably supplied for commingling with the gas lor producing a proper combustion mixture.

With these and other objects in view, the invention resides in the features of construction, arrangement of parts and combinations oi elements which will hereinafter be lully described, reference being had to the accompanying drawings, in whichligure l is a central longitudinal section of the invention;

Figure 2 is a top plan view o the same;

lBigure 3 is a cross section on' line 3 3, llig. l; and-f. l

Figure 4 is an enlarged fragmentary section on line 4 4, Fig. l.,

Referring to said drawings, l indicates the substantially upright side walls and 2 the liet top of a horizontally disposed sheetmetal burner shell or casing which is ot appronimately lil-shape, inverted, and 3 designates the bottom oi said casing, said bottom being of semi-cylindrical form in cross section and having its lateral edges attached to the lower rends ot said side walls l. The opposite ends oil said casing are clos-ed by caps or closures l and 940.,

Fitted closely beneath the dat top 2 the casing is a sheet metal plate 5 having downturned flanges 5S4 seated against the opposite side walls l and attached to the latter by spot-welding., Said plate 5 and said top 2 together constitute a mounting for a plu rality of longitudinally alined burner grids d which are preferably oi" the term disclosed in the co-pending application, Serial No., 551,861, of Henry Kielberg, and which are preferably clamped in place by encircling anges 2l and 22 formed in said ton 2 and said plate 5, as disclosed in said application,

Provided in the lower portion or the cas ing l is a passage 7 through which gas is introduced to the interior of said casing Eer distribution tothe various burner grids t3, said passage being preferably tubular and having outlets designed to provide such an even distribution of the fuel as will cause the mixture to issue in uniform. volume from the various grids lor producing even incandescence. The lower half ot said tubular passage is constituted by the arcuately curved, or semi-cylindrical, bottom ll the casing. A semi-cylindrical sheet-metal member 8 complements said bottom 3 in the formation of said passage, said member ha ing its lateral edges turned outward to orna anges which directly underlie ksimilar anges 'formed on the lower ends ol the opposite side walls l, and said iianges being embraced by hook-like edges formed on the bottom 3, said edges serving to permanently clamp the parts in fixed relation.,

The tubular passage 'l opens outward through the closure 4 and has closely fitted therein the reduced end of an induction nozzle 10 which has an annular outer end flange 1()l rigidly attached to a side wall 11 of the heater casing in embracing relation to an opening 15 provided in said wall. A cap 12 provided with a plurality of ports 12* and having an outwardly directed annular flange 12b is mounted on the outer face of said wall 11, as by means of the same screws or bolts 23 by which said nozzle is attached. Directed centrally through said cap and the opening 15 and rigidly supportedby the former is a nipple .13 through which gas is 1ntroduced into said nozzle 10 from a service pipe (notshown), a suitable gas-control va ve, as 14, being disposed intermediate said nipple and said pipe. A Spud insert 13 is carried by the inner end of said nipple, as ordinarily. Threaded upon said nozzle so as to be ad'ustable with respect to the flan e 12b of t e cap 12 is a disk-like air regu ating valve 16 by which the volume of air admitted through the ports 12a and thence through the opening 15 may, by adjustment, be controlled.

The complemental tube-forming member 8 has a length somewhat less than that of the casing 1 so that a very large proportionof the volume of the combustible mixture of gas and air conducted through the tubular passage 7 is discharged from the latter to the interior of the casing at a considerable distance from the blind end or closure 20. In practice, it has been found that the most uniform distribution of the mixture among the various grids 6 is obtained by having the member 8 terminate slightl past the midlength of the casing. Furt er, it has been found advantageous to provide at the inner .end of said member 8 a narrow centrallydisposed longitudinally-extending tongue, as 17, on opposite sides of which the mixture may rise. One or more suitable apertures 18, referably formed by striking up small over ying tongues 19, are provided in the member 8, as shown.

What is claimed fis- 1. A burner for radiant gas heaters, com-` prising a sheet-metal casing having a horizontal top, depending side walls, and a bottom attached to said side walls, a sheet metal plate underlying said top, ai plurality of burner grids annularly embraced and clamped in lace by said top and said plate, and means or distributing fuel throughout the interior of said casing.

3. A burner for radiant gas heaters, comprising a sheet-metal casing having a horizontal to depending side walls, and a bottom attac ed to said side walls, a sheet metal late underl ing said top, a plurality of urner gri s annularly embraced and clamped in lace by said top and said plate, and a` tubu ar passa e formed within said casing for the distri ution of fuel to said rids, the lower part of said passage being ormed by the bottom of the` casing.

4. A burner for radiant gas heaters, comprising a sheet-metal casing having a horizontal top, dependin side walls, and a bottom attached to the ower ends of said'side walls, Asaid bottom being semi-cylindrical in cross-section, and a semi-cylindrical member located within said casing in complemental relation to said bottom for forming a fuel-conducting passage. v

5. A burner for radiant gas heaters, com prising a sheet-metal casing having a at horizontal top, depending side walls, and a bottom attached to the lower ends of said side walls, said bottom being semi-cylindrical in cross-section, and a semi-cylindrical meinber located within said casing in complemental relation to said bottom for forming a fuel-conducting passa e, said member having less length than sai bottom.

6. A burner for radiant gas heaters, comprising a sheet-metal casing having a flat horizontal top, depending side walls, and a bottom attached to the lower ends of said side walls, said bottom being semi-cylindrical in cross section, and a semi-cylindrical member locatedI within said casing in complemental relation to said bottom for forming a fuel-conducting passage, said member leading through an end of said casing and terminating at a point ap roxima'tely midway between the ends of said casing.

7. A burner for radiant gas heaters, coinprising a sheet metal casinghaving an upper portion of approximately -shape, inverted, providing a top and depending side walls, a semi-cylindrical bottom attached to said side walls, and a member arranged complementally with respect to said bottom to form an intermediatefuel passage, said side walls and said member having ianges, and said bottom having hook-like lateral edges disposed in clamping relation to said flanges.

In testimony whereof we aiiix our signatures in presence of two witnesses.

WILLIAM W. HOLLOWAY. HENRY KIELBERG.

Witnesses:

G. O. SMITH, H. E. DUNLAP.

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