US2014665A

US2014665A - Gas burner

Info

Publication number: US2014665A
Application number: US710024A
Authority: US
Inventors: Herbert R Palmer
Original assignee: THOMAS H TUBMAN
Current assignee: THOMAS H TUBMAN
Priority date: 1934-02-06
Filing date: 1934-02-06
Publication date: 1935-09-17
Anticipated expiration: 1952-09-17

Description

Sept. 17, 1935. Y H. R. PALMER GAS BURNER Filed Feb. 6, 1954 taken in connection drawing, in which:

Patented Sept. 17, 1935 UNITED STATES PAENTT OFFICE GAS BURNER Herbert Palmer, Shaker Village, Ohio, assignor of one-half to Thomas H. Tubman, Akron,

Ohio

Application February e, 1934, Serial No. 710,024

9Claims. (c1.15s 117) This invention relating to improvements in gas burners and more particularly such burners adapted for .use with cooking stoves, will be readily understood from the following description, with the accompanying Figure '1 is "a plan view of the improved burner;

Figure 2 is a longitudinal sectional view on the line 22 of Figure 1;.

Figure 3 is a section on the line 3-3 of Figure 2; and r Figure 4-is a longitudinal sectional view through the air shutter shown detached from the burner.

Referring more particularly to the drawing 5 denotes the burner, comprising the usual mixing tube 6 to the outer end of which gas is supplied from a manifold not shown, connected in any suitable manner with the opening 1, in cap 3.

An adjustable shutter 9 formed of thin resilient metal; and snugly sleeved upon the mixing tube regulates the flow of air drawn into thetube ii, through side openings Ill, by the infiowing gas.

The opposite ends of theshutter 9 are bent inwardly and slitted as at I! to form tongues l2 adapted to resiliently grip the mixing tube and hold the shutter in any desired adjusted position.

I The shutter can be slid longitudinally or it can be rotated to bring the slots l l into or out of register with the side air openings Ill, thus permitting very fine adjustment. However, the frictional engagement of the tongues [2 with the mixing tube precludes accidental movement of the shutter. By locating the air openings in the sides of the tube, instead of in the cap 8 as usual, the air is drawn in from all sides with a very desirable swirling action. The inner wall of the mixing tube is gradually contracted and then expanded just in advance of the air openings In, as at l3, thus insuring a 'Venturi-like action. 7

Theinner end of the mixing tube" is enlarged at i'ts'outer end into a substantially bowl shaped burner portion I4. comprising an integral upstanding' tube or inner wall l5 concentrically'disposed with respect to and spaced from the outer wall I 5 thereof, the annular space between the 'two walls'con'stituting a distributing chamber ll. The opening or passage l8 through the tube '!5 insures an ample supply of secondary air. The outer-wall lfi'of the burner is fluted to increase the flame area and intensity ofrthe flame without a corresponding increase in gas'consiunption.

The distributing chamber I l is partiallyrclosed at its upper end by a burner head or plate l9 which is supported in slightly spaced relation to'and directly above the top edges of the walls I5 and It by means of threaded bolts fixedly mounted in bosses 2! formed in the bowl shaped burner portion I 4. Plate I9 is provided with a round centrally disposed aperture 22 which coincides in size and registerswith the opening 18,

and the outer end of the plate is corrugated or fluted to correspond to and register with the corrugations in the outer wall H6, or in other words the peripheral edge of plate I9 is substantially flush with the outer face of wall it, when the parts are assembled. An unobstructed circular inner flame outlet or opening 23 and an unobstructed outer irregular flame outlet or opening 2d is thus provided. A bafile member 25 located in the air opening or passage [8, and preferably supported from plate l9 by means of arms 26, prevents a too free flow of air to the flame openings.

The action of the flames is as follows: the

inner ring like flame issuing from the inner ring shaped slot 23 between the top of the inner wall 15 of burner M and the inner edge of 1 axially perforated plate is heats the central area ofa cooking utensil supported in proper distance from the burner, and the outerflame issuing from the irregular slot 24 between the top of the outer wall to and the outer edge of plate l9 heats the substantially ring shaped area of said utensil adjacent to said central area. The inner flame is of uniform character throughout, however, due to the irregular'configuration of the outer wall l5 in'cooperation with the inner tubular wall I5 of the burner, the flame issuing through the outer burner passage 24 varies in intensity at the irregularly shapedpassage 24 in partly opposing o1 converging directions with respect to adjacent areas. The intensity of the flame is greatly increased at these converging points and it has been found'that a maximum of heating efliciency can thus be obtained with a minimum consumption of fuel. According to this arrangement and construction of parts it is also possible to obtain an exceptionally large flame area with 'a very small burner.

The bolts 20 project upwardly through openings 2'! in the plate l9, and the latter is adjustably supported on the bolts by means of nuts 28 'threadedly mounted on their threaded outer ends, the plate being provided with upwardly and inwardly extending fingers 29 engaging the top of the nuts. It will thus be seen that the plate can be conveniently elevated or lowered and the size of opening 24 increased or decreased by merely turning the nuts 28 in an appropriate direction. The nuts 28 are provided with integral caps or heads 30 which prevent grease and other foreign matter from reaching the threads of the nuts or bolts. These heads are preferably slotted to permit use of a screw driver or the like in turning the nuts.

A downwardly and outwardly inclined annular apron-like member 3| formed with a large central opening 32, encircles the wall I 6 in slightly spaced relation thereto and slightly below the top thereof and keeps the cold air from the burner. The member 3| is supported from the plate H! by means of arms 33.

While my improved burner is particularly adapted for use with cooking stoves, it will be understood that it can also be used in furnaces and hot Water heaters.

Having thus described my invention:

What I claim is:

l. A gas burner comprising a body having an opening and a substantially ring shaped mixing chamber open at its top, the inner cylindrical wall of said chamber forming an open ended passage having its upper open end horizontally aligned with the open top of said chamber and the outer wall of said chamber being fluted to provide an outlet opening of varying area at the top of said chamber, a plate shaped to fit the open top of said chamber adjustably mounted slightly above the open top of said body to provide substantially concentric outlet passages from said chamber to the open atmosphere, and means adapted to shift said plate vertically with respect to said body for varying the width of said outlet passages.

2. A gas burner comprising a body having an open-top and a substantially ring-shaped mixing chamber having the tops of its walls horizontally aligned, the inner cylindrical wall of said chamber forming an open ended passage and the outer wall of said chamber being fluted to provide an outlet opening of varying area at the top of said chamber, a flat centrally perforated plate shaped to fit and close the open top of said chamber adjustably mounted slightly above the open top of said body to provide substantially concentric outlet passages from said chamber to the open atmosphere, means adapted to shift said plate vertically with respect to said body for varying the width of said concentric outlet passages and means within said open ended passage and supported by said plate to partly obstruct a flow of air through said open ended passage.

3. A gas burner comprising a body having an open-top and a substantially ring-shaped mixing chamber having the tops of its walls arranged in the same horizontal plane, the inner wall of said chamber being cylindrical and the outer wall of said chamber being fluted to provide an outlet opening of varying area at the top of said chamber, a flat axially perforated plate having the same irregular configuration as said outlet opening mounted slightly above the open top of said body to provide two substantially concentric, narrow outlet passages for the gas and air mixture in said mixing chamber, and means adapted to shift said plate vertically with respect to said body for varying the width of said two outlet passages. I r

4. A gas burner comprising a bowl shaped body having an open top, a fluted outer wall and a cylindrical inner wall having its top horizontally aligned with said outer wall and being axially aligned with and spaced from said outer wall to provide a substantially ring-shaped mixing chamber enclosing an axial passage through said body, a flat axially perforated plate having the irregular configuration of said chamber and mounted slightly above the open top thereof in alignment with the outer and inner walls to 10 provide two substantially concentric narrow outlet passages for the gas and air mixture in said mixing chamber, and means extended through said mixing chamber adapted to shift said plate vertically with respect to said body for varying the width of said two outlet passages.

5. A gas burner comprising a bowl shaped body having an open top, a fluted outer wall and a cylindrical inner wall having their tops horizontally aligned with each other, said inner wall being axially aligned with and spaced from said outer wall to provide a substantially ringshaped mixing chamber enclosing an axial passage through said body, and a flat axially periorated plate having the irregular configuration of said chamber and mounted slightly above the open top thereof in alignment with the inner and outer walls to provide two substantially concentric narrow outlet passages of equal width adjacent the inner and outer walls of said chamher.

6. A gas burner as described in claim 4, wherein said adjusting means for said disk include a plurality of symmetrically arranged threaded :5 posts, and rotatable means threadedly connected with the upper ends of said posts and wherein said plate is provided with means for coupling said plate with said rotatable means.

'7. In a gas burner embodying a burner body a; and a burner manifold, a venturi within said manifold, air openings circumferentially arranged in the wall of said manifold adjacent to said venturi and a sleeve member mounted on said manifold for longitudinal and rotatable movement, said member having slitted, yielding end portions yieldingly engaged with said manifold to hold said sleeve in its adjusted position.

8. A gas burner comprising a substantially bowl shaped body having an open top and a substantially ring shaped mixing chamber having the tops of its walls arranged in the same horizontal plane, a flat axially perforated plate having the configuration of said mixing chamber mounted slightly above the open top of said body to provide substantially concentric narrow inner and outer unobstructed outlet passages for the gas and air mixture discharged from said mixing chamber, and means for adjusting said plate to increase or decrease the capacity of said passages.

9. A gas burner as described in claim 4, wherein said means extended through said mixing chamber consists of a plurality of symmetrically arranged threaded posts and nuts threadedly connected with the upper ends of said posts and wherein said plate is provided with means for coupling said plate with said nuts and said nuts include caps to protect the threads of the nuts and posts.

HERBERT R. PALMER.