US 1239681 A
Description (OCR text may contain errors)
A. J. ENGLISH.
APPLICATION FILED AUG.I2.V19I5.
Patented Sept. 11, 1917.
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npplication filed August 12, 1915.
To an/310m may concern:
Be it known that 1, ANDREW J. ENGLISH,
the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Gas-Burners, of which the following .is a specification. v
The object of my invention is to produce a cheap, simple and highly efficient gas burner of unique construction which will consume a minimum amount of gas and produce a maximum amount of heat, and at the same time thoroughly mix the gas and oxygen to produce perfect combustion.
One of the salient features of my invention consists in producing an air and gas mixing tube having an outlet area, as large, if not larger than the inlet, and atthe same time providing a form of construction wh ch will prevent back firing.
Another feature consists in providing a means whereby the tubes of the burner may be clustered or otherwise arranged so that they will ignite each other.
Another feature consists in spacing them apart so as to completely envelop with oxygen the flame issuing from the outlet, thereby more evenlydistributing the fire, and allowing a thin sheet of flame to project upwardly in a narrow space between two walls.
In the accompanying drawing formlng part of this specification- Figure 1, is a plan view of the burner,
Fig. 2, a section taken on line 2-2 of Fig. 1,
Fig. 3, is an isometric view of one of the arms or tubes which make up the burner,
Fig. 4, is a view of the same flattened toward the mouth,
Fig. 5, is a view of same with mouth bent upward at a certain angle or curvature,
Fig. 6, is a similar view, the mouth being bent 'up at a different angle or curvature,
Fig. 7, is a view in elevation of a modification of the burner, and
Fig. 8, is a section on the line 8-8 of Hi 7. I
T provideahead 1,cast, or otherwise made, having a chamber 2 provided with small holes or openings 3, and a depending pipe 1, screw threaded at its extremity to which a gas inlet pipe may be connected. The upper central part of the head 1 on top of chamber 2 is provided with a cone shaped tipecification of Letters Eatent.
Serial 1310. 45,5365.
extension 5 having a key 5. On the head 1, I place a top piece 6 having a central recess 7 which fits loosely overthe cone shaped extension 5, the bottom of the top piece 6 resting on the top of chamber 2 as shown, having a key seat to engage key 5. The ends 8 of the arms or tubes 9 fit around the peripheral edge'of the top piece 6, an annulus 10 I fitting onto and over them and a screw nut 12 fitting onto the annulus 10, by being screwed down onto the same, totightly hold the arms or tubes in position against displacement. The nut 12 screws down in place on a screw thread on the short extension 13. In this manner the tubes 9 are secured to top piece 6. Then when top piece 6 is set onto head 1, the key seat fitting over key 5 brings tubes 9 into perfect alinement with gas outlets 3. Tt will be noticed that between the inner edge or mouth 1d of the tubes 9 and the peripheral wall of the chamher 2, I provide air spaces 15.
The gas enters through the tube 4 which is connected to the gas inlet pipe, and passes up into the chamber 2 from which it is distributed to the tubes 9, passing into them through the small holes 3, and entering the tubes through the mouths let, the air or oxygen passes up through the spaces 15 and together with the gas mixes as it passes out toward the narrowed mouth 16 of the tubes 9; Being thoroughly mixed, the gas and air" burn with a blue flame at the narrowed mouth 16 and ignite from one another to form an annular sheet of blue flame. These tubes 9 from their mouths 14 to their narrowed mouths 16 thoroughly mingle and mix the air and gas and, flattened as shown prevent back firing and still maintain the desired area for the free outlet of gas.
in Fig. 8, I show the tube as it is first formed, small at one end and large at the other, andin' Fig. 4, I show this tube flat but straight as T nse it when I want the flame to pass out straight; in Fig. 5, T show the tube flattened as in Fig. 4, but slightly bent up as I use the burner when I wish to throw the flame against the wall, and in Fig. 6, Tshow the same flattened tube bent up with a greater degree of curvature so that T can use it in a. narrow space between two walls in a combustion or heating chamber.
In the modification shown in Figs. Y and 8, I connect a series of the tubes 9 onto a straight gas pipe 20 by passing a screw 21 through extensions 8 on inner end of tubes 9 into the pipe 20, the pipe so being provided with gas outlet holes 3 and the air space 15 being present as in the other construction.
.A construction of this character is useful at a grate or the like and operates in the consumption of gas and air in the same degree as the device shown in Figs. 1 and 2.
Instead of constructing the burner as hereinbefore set forth I may form the gas burner head and the arms integral and make it a casting and allow the gas and air to mix therein and pass off through the tubes and produce a blue flame the same as heretofore described, a burner of this character being shown by me in an application filed by me Oct. 29, 1914, #869,222, for improvements multiplicity of diverging tube like arms, flattened and widened toward their outlet, the outlet being narrow and elongated, for the mixture of air and gas, the elongated flattened outlet extending vertically upward.
2. In a gas burner, a mixin tube having a suitable inlet for gas, said tube being gradually flattened and widened to provide a narrow elongated outlet for the mixture of air and gas, the tube at its outlet extending vertically upward, the area of inlet in the tube being least' in diameter and the outlet thereof being greatest in diameter. 7
3. In a gas burner, a tube having an inlet of a predetermined area, the body of the tube increasing in area and having the outlet narrowed and elongated to prevent back firing, maintaining at the outlet a greater area'than the area of the inlet.
4:. In a gas burner, a tube havin an inlet of a predetermined'area, the body 0 the tube increasing in'area and having the outlet narrowed and elongated to prevent back-firing, maintaining at the outlet a greater area than the area of the inlet, the tube at its outlet extending vertically upward.
ANDREW J. ENGLISH.
I H. E. CARs'rENs, L. M. DUNLAP.