US1187261A - Gas-burner. - Google Patents

Description

H. A. COCHRAN.

GAS BURNER.

APPLICATION FILED OCT. 9. I9I5.

1,187,261. fa J 2 SHEETS-SHEET 1. fig- 2 IIWE/V TOR flary4 (06/?)"dfl A TTOBIVEYS H. A. COCHRAN. GAS BURNER.

I APPLICATION FILED 0CT. 9| 1915- I Y 1 187 261. PatentedJune13,1916.--

2 SHEETS-SHEETZ.

,1 viii HARRY A. COCHRAN, OF AUSTIN, TEXAS, ASSIGN'OR F ONE-HALF TO FRED A. SCOTT,

' 01? AUSTIN. TEXAS.

GAS-BURNER.

Specification of Letters Patent.

Application filed October 9, 1915. Serial No. 55,061.

To all whom it may concern:

Be it known that I, HARRY A. COCHRAN,

a citizen of the United States, and a resication for Letters Patent, Serial No. 55062 filed under even date herewith, namely: Oct. 9, 1915.

One object of the invention is to provide a new and improved gas burner arranged to insure complete combustion of the gas and the production of a high heat on an economical consumption of gas.

Another object is to prevent water of condensation accumulating on the exterior of the coil of the water heater from dropping into the flame opening of the burner and causing injury to the screen thereof.

In order to produce the desired result, use is made of a central gas distributing chamber connected with a source of gas supply and provided with a series of burner tips extending into the open ends of mixing tubes leading to a burner ring having a combustion chamber at which the mixture of air and gas is burned.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevationof the gas burner as applied to a water heater; Fig. 2 is an inverted plan view of the same; Fig. 3 is an inverted sectional plan view of the heater on the line 3-3 of Fig. 1; Fig. 1 is an inverted plan view of the central gas distributing chamber and its burner tips; Fig. 5 is a side elevation of the water heater provided with the improved gas burner; Fig. 6 is an enlarged sectional side elevation of the burner; Fig. 7 is a plan view of the same with the parts broken out; and Fig. 8 is a cross section of the same on the line 88 of Fig. 7.

The gas burner 10, as illustrated in Fig. 1, is located in the lower end of the casing 11 of a water heater having a coil of pipe 12 arranged within the casing 11 directly above the said burner 10, the coil of pipe 12 being connected at the outlet end with a draw-off faucet and being connected at the inlet end with a controlling device 13 connected with a water supply pipe 1 1. The controlling device 13 controls the flow of water to the coil of pipe 12 and also controls a gas valve 15 connected by a pipe 16 with the gas main and by a pipe 17 with the burner for supplying the latter with gas.

Patented June 13, 1916.

The controlling device 13 is more fully shown and described in the application for Letters Patent above mentioned, so

deemed necessary, it being understood that when the draw-ofl' faucet (not shown) connected with the coil 12 is opened then the controlling device 13 allows water to flow to the coil 12 and opens the gas valve i to allow gas" to pass'by way of the pipe 17 to the burner 10. The terminal of the pipe 17 screws onto a nipple '18 of a gas distributing chamber 19 provided at the sides with upwardly and outwardly extending tips 20 opening into the lower ends of mixing tubes 21 extending upwardly and outwardly, as plainly shown in Figs. 1 and 6. The lower ends of the mixing tubes 21 are integrally connected'with each other by a plate 22 into which screws the nipple 18 to support the distributing chamber 19 centrally relatively to the mixing tubes 21. The upper ends of the mixing tubes 21 are connected with each other integrally by a top ring 23 provided with top recesses 24E separated from each other by radial partitions 25 intermediate points at which the ends of the mixing tubes 21 enter the recesses 24, as plainly. shown in Fig. 7. The top ring 23 is further provided with outwardly extending lugs 26 resting on brackets 27 attached to the inside of the casing 11, as plainly shown in Fig.1. Bolts or other fastening devices 28 are used for attaching the lugs 26 to the brackets 27. A burner ring 29 is secured to the ring 23 by screws 30 passing through the ring 29 into the partitions 25 (see Figs. 7 and 8). The burner ring 29 is. provided with an outer flange 31 and an inner flange 32, of which the outer flange 31 extends upwardly and inwardly while the inner flange 32 extends upwardly and outwardly. The flange 31 overhangs the flange 32 to provide a combustion chanri-' ber 33 and an outlet slot 34 between the adthat further description of the same is not jacent ends of the flanges 31 and 32. A ring 35 of wire gauze screen material or the like is interposed between the rings 29 and 23 so that the mixture of air and gas passing up the mixing tubes 21 passes through the perforate ring 35 into the combustion chamber 33 from which the mixture passes through the slot 3 1 to be ignited by the flame of a pilot light 36 connected with the valve 1.5 at the inlet side thereof. By having the perforate ring 35 back flashing is prevented and by having the flange 31 overhanging the flange 32 any water of condensation that may drip down from the coil 12 is carried olf and is not liable to pass through the slot 34- into the combustion chamber 33 and onto the ring 35 to corrode the same. In order to permit of conveniently fastening the ring 29 to the ring 23 the outer flange 31 is provided with cut-out portions 37 for the passage of the screws 30.

It will be noticed that when the gas valve 15 is opened gas passes by way of the pipe 17 into the distributing chamber 19 from which the gas passes by way of the tips 20 into the lower ends of the mixing tubes 21 to mix with the air passing into the said tubes by way of the lower open ends there of. The mixture of gas and air next passes through the perforate ring 35 into the combustion chamber 33 and to the slot 34 to be burned in a circular flame for heating the coil 12. By distributing the gas from the chamber 19 by way of the single tips 20 it enters the mixing tubes 21 in jets with the desired pressure so that an intimate mixture of the gas and air takes place in the mixing tubes 21.

It will also be noticed that when the burner 10 is placed in position in the casing 11 directly below the coil 12 and the gas is ignited then the flame produced is a steady one and very effectively heats the coil 12 and the water passing through the same.

By the arrangement described a comparatively small amount of gas is consumed for producing a flame of a high heat thus rendering the use of the burner exceedingly economical.

By arranging the flanges 31, 32 in the manner described, extraneous matter such as water, dust and the like, is prevented from passing into the combustion chamber 33 and the perforate ring 35 to prevent the latter from being clogged up.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A gas burner, comprising a central support, a top ring, a series of upwardly and outwardly inclined mixing tubes arranged in a conical plane and having their lower ends attached to said central support and having their upper ends integrally connected with each other by said top ring, a gas distributing chamber connected with a source of gas supply and attached to the said support, a series of burner tips attached to the said distributing chamber and inclined upwardly and outwardly, the terminals of the said burner tips extending into the lower ends of the said mixing tubes, and a burner ring overlying and attached to the said top ring and into which discharge the said mixing tubes.

2. A as burner, comprising a central support, a top ring, a series of upwardly and outwardly inclined mixing tubes arranged. in a conical plane and having their lower ends attached to'said central support and having their upper ends integrally con nected with each other by said top ring, a gas distributing chamber connected with a source of gas supply and attached to the said support, a series of burner tips attached to the said distributing chamber and inclined upwardly and outwardly, the terminals of the said burner tips extending into the lower ends of the said mixing tubes,

and a burner ring overlying and attached to the said top ring, the said burner ring having an outer flange and an inner flange, of which the outer flange is inclined upwardly and inwardly and the inner flange- 1S inclined upwardly and outwardly, the free ends of the said flanges being spaced apart.

3. A gas burner, comprising a central support, a top ring, a series of upwardly and outwardly inclined mixing tubes arranged in a conical plane and having their lower ends attached to said central support and having their upper ends integrally connected with each other by said top ring, a gas distributing chamber connected with a source of gas supply and attached to the said support, a series of burner tips attached to the said distributing chamber and inclined upwardly and outwardly, the terminals of the said burner tips extending into the lower ends of the said mixing tubes, and a burner ring overlying and attached to the said top ring, the said burner ring having an outer flange and an inner flange, of which the outer flange is inclined upwardly and inwardly and the inner flange is inclined upwardly and outwardly, the free ends of the said flanges being spaced apart and the said outer flange overhanging the said inner flange.

4. A gas burner, comprising a central support, a top ring, a series of upwardly and outwardly inclined mixing tubes arranged in a conical plane and having their lower ends attached to said central support and having-their upper ends integrally connected with each other by said top ring, the latter being recessed at the top and provided with partitions intermediate the outlet ends of adjacent mixing tubes, a gas distributing chamber connected with a source of gas supply and attached to the said support, a series of burner tips attached to the said distributing chamber and inclined upwardly and outwardly, the terminals of the said burner tips extending into the lower ends of the said mixing tubes, and a burner ring overlying and attached to the said top ring, the said burner ring having an outer flange and an inner flange, of which the outer flange is inclined upwardly and inwardly and the inner flange is inclined upwardly and outwardly, the free ends of the said flanges being spaced apart and the said outer flange overhanging the said inner flange.

5. A gas burner, comprising a central support, a top ring, a series of-upwardly and outwardly inclined mixing tubes arranged in a conical plane and having their'lower ends attached to said central support and having their upper ends integrally con nected with each other by said top ring, a gas distributing chamber connected with a source of gas supply and attached to the said support, a series of burner tips attached to the said distributing chamber and inclined upwardly and outwardly, the termi- H. M. LITTLE, C. B. BONNER.

conic: of this patent may be obtained for five cent: each, by addressing the Commissioner of Patents,

Washington, D. G."

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