US1971449A - Gas burner - Google Patents

Description

. P. S. HARPER i Aug. 28, 1934.

GAS BURNER A Filed June 15.

VIII/lll, f /l Patented Aug. 28, 1934 GAS BURNER Philip S. Harper, Chicago, Ill.

Application June 13,

11V Claims.

This invention relates to burners and to their arrangement on a gas range whereby combination large and simmer burners of the horizontally cored type may be used on the burners of the 6 range, and particularly Where all four burners on the conventional four burner cooking top may be of, this particular double or combination type, and this invention discloses an advantageous construction and arrangement of such burners.

. l Heretoiore it has been possible to use as many as four such combination burners on a range, of the vertically cored type, as shown in my copending application Serial No. 440,895, led April 2, 1930, which has resulted in Patent No. 1,896,082, 16 issued February 7, 1933, but I have here devised a range having four burners each having two mixing tubes horizontally displaced onefrom the other.

The object of this invention is to provide a range having four combination large and simmer burners with single patterns for the two front burners and a single pattern for the two rear burners.

Another object of this invention is to devise such burners so that they can be economically manufactured.

Another object of this invention is to provide a symmetrical arrangement of the simmer sections of the burners on the cooking top with burners of this horizontally cored type.

Another object of this invention is to arrange a double burner in which the coresfor the two mixing tubes are made as a single core.

Another object of this invention is to provide an arrangement for said burners whereby the parting lines are in a single plane 'eliminating diicult strikel ois in the making of cores.

Another object of this invention is to eliminate the placing of the ports in the burners at an appreciably higher level than the mixing tubes, so in turn eliminating explosive combustion after a burner has been turned ofi. l

'I'hese and other objects of this invention will be more apparent from the following description and fromthe drawing, in which- Figure 1 is a view of one arrangement 'of the stove top and burners of my invention, the two burners on the left side being shown in section on the line 1-1 of Figure 2; and

5o Figure 2 is a sectional view taken on the line 2-2ofFigure 1.

Referring now to the drawing, Figures 1 and 2 show a stove top frame 10 under which is supported a manifold pipe 11.

This manifold has' gas cocks 12, 12a. 12b. and 12e of the type dis- 1930, Serial N0. 460,826

(Cl. 15S- 105)- closed in my copending application Serial No. 460,825, led June 13, 1930. These cocks each have a forward projecting operating stem 13 on which is fastened a handle 14. Said cocks on their inner ends each have a central nozzle 15 and a horizontally displaced nozzle 16 each nozzle projecting into a separate mixing tube in one of the burners, all in accordance with my above mentioned copending application. The operating stem 13 on each cock projects through a plate or shield 17 as shown.

Taking now the gas cock 12 the nozzles thereon 15 and 16 project into mixing tubes 18 and 19 respectively, of front burner 20, and said mixing tubes 18 and 19 lead respectively to burner sections 21 and 22. It is seen that the mixing tube 18 curves around and enters the rear of the burner section 21 while the large mixing tube 19 enters the large burner section 22 more directly at the side of the burner as shown. Both mixling tubes 18 and 19 are positioned one beside the other as shown,l and these tubesV as well as the burner sections 21 and 22 are separated at every point by a substantially vertical wall, thisbeing necessary for advantageous manufacture of these burners as hereinafter explained. Air shutters 65 are shown fastened by screws 66,-as shown and disclosed in my copending application Serial No. 460,827, filed June 13, 1930.

The right front burner 28 is similar in every way to the left front burner 20 above described, except that it is shown in plan view rather than in section so that burner ports 23 and 24 are shown in the sections 21 and 22 respectively.

Cocks 12a and 12e have nozzles similar to those on cock 12 projecting into mixing tubes 30 and 31 in burners 32 and 32a as shown, these mixing tubes leading to burner sections 33 and 34 respectively, each section having burner ports 35 and 36 in the ,upper walls thereof. Said mixing tubes are also positioned one beside the other and extend to the side of the front burners 20 and 28 and in the same horizontal plane as the front burner sections 21 and 22. 'I'hese two rear burners 32 and 32a are both exactly similar, just as the front burners 20 and 28 are similar one to the other. This construction where the mixing tubes of the rear burner do not pass beneath the front burner, is advantageous since it provides simmer burners wherein the ports are not raised an appreciable distance above the mixing tubes, which construction as described eliminates a stack effect of such raised ports, which causes a flash-back on shut of! of the burner.

The core for the mixing tube 30 and small section 33 is necessarily made small for the proper working of the burner, and it is consequently dimcult to manufacture. I have devised a means of supporting said core throughout its length by attaching the same with nails 60 lor other suitable means extending therein. Said cores for an entire burner are made usually in an upper and lower half, and when the lower half is made in the core box said nails 60 are laid in place as shown, after which the top half of the core made in the dryer is laid thereon and the whole baked into one piece. These nails 60 or other suitable means extending into both mixing tubes, fuse into the central wall 6l and cause no trouble in the ordinary use and operationof Vthe burner.Y

This method of molding the entire core means into one piece is very advantageous and reduces cost of manufacture, and it can be seen that this method could only be used when the mixing tubes and the burner sections are separated at every point by a. wall substantially perpendicular to the plane of the burner head, or more strictly to the parting line in the cored portion of the burner.

The nails above referred to are so placed as to give a definite advantage in the combustion of the burner since they serve to cause a more thorough mixing of the gas and air before reaching any of the burner ports. Such thorough mixing decreases the tendency of a burner to flash back A into the mixing tube. In previous burners, screws have been tapped into the tubes for the same purpose, but the construction shown is cheaper and simpler, and in addition applicants burners having the nail means connecting the cores have a uniform and reliable wall between the two mixing tubes and sections of the burner.

All four top burners as shown have two sections as 21 and 22 in the burner 20, these sections being incorporated in what we shall designate in burner 28 as a burner head 40 having prongs 41 and 42. The prong 41 lcontains only the small section 2l, whereas all the remainder of the prongs contain and are part of the larger section of the burner 22. The before mentioned burner ports 23 in the prong 41 are about equivalent in burning capacity to the ports 24 in any of the other prongs, consequently the burner head 40 has the ports in its top surface arranged in a substantially balanced manner around a central point which is the center of said burner head as indicated at 43 at the intersection of the center lines 44 and 45. Said center line 44 is drawn substantially at right angles to said manifold 11 and said center line also passes through the center of the burner head 46 of the burner 32a at the intersection with center line 47. Said center line 47 is drawn substantially parallel with said manifold l1 and said center line 47 also passes through the center 48 of the burner head 49 of the burner 32 at the intersection with center une 5o which is drawn substantially at right angles to the manifold 11. Said last center line 50 intersects the previous center line 45 approximately at the center 51 of the burner head 52 of burner 20.

The burner head 40 has all its ports 23 and 24 in both sections arranged within the area of the usual cooking vessel, and this is likewise true of the other three burners shown, 20, 32 and 32a.

The burners 20 and 28 are designated as front burners since they are nearer the operating handles 14 of the valves 12, 12a, 12b and 12c, whereas the rear burners 32 and 32a` are farther removed from said operating handles 14.

The gas cocks 12 and 12e are located outside the center lines 50 and 44 of their respective burners 20 and 32a while the cocks 12a and 12b are placed on the manifold 11 between the two center lines 50 and 44 as shown. An oven cock 12x is shown placed between cocks 12b and 12e, and this cock has connection with an oven burner (not shown).

It may be seen, therefore, that I have devised a practical means of 'incorporating four double horizontally cored burners in a gas range, such an arrangement having neverbefore been used or considered possible of practical attainment. Y

While I have described more or less precisely the details of constructionI/do not wish to be understoodasflimitiig myself thereto, as I contemplate changes in form and the proportion of parts and the substitution of equivalents as circumstances may suggest or render expedient without departing from the spirit or scope of my invention.

I claim: v

1. In a. gas range, a cooking top, a manifold arranged at the front end of said cooking top, a front double section burner, and a rear double section burner, the said front burner having one of its sections entirely to the rear of its center line parallel to said manifold, and the said rear burner having one of its sections entirely to the front of its center line parallel to said manifold.

2. In a gas range, a manifold arranged with gas cocks thereon, and a system of four double section burners connecting with said gas cocks, two of said burners having their mixing tubes to the right with respect to their respective center lines perpendicular to said manifold, and the remaining two burners having their mixing tubes to the left of the same center lines, said burners having burner ports, each of said burners having at least one mixing tube wholly outside of the horizontal projection of the burner ports in said burners.

3. In a gas range, a manifold, gas cocks fassaid manifold, at least one of said burners having two mixing tubes, said mixing tubes being` both positioned in lateral displacement from said center line and one of said mixing tubes being in lateral displacement from the other, said burners having burner ports, each of said burners having at least one mixing tube wholly outside of the horizontal projection of the burner ports in its respective burner.

4. In a gas range, a manifold having four gas cocks thereon, each of said cocks having two nozzles, and a burner connecting with each of said cocks, each of said burners having two mixing tubes connecting with two burner sections each having burner ports in the top thereof arranged within the area covered by the usual cooking vessel, the two nozzles on each of said cocks projecting respectively into the two mixing tubes in each of said burners, any one of said mixing tubes in said burners being laterally displaced from all the remaining mixing tubes, said sections in each burner differing in size the one from the other, two of said burners being a lesser distance from said manifold than the other two burners, said burners at a lesser distance from said manifold each having their small sections on their 4center lines perpendicular to said'manifold.

5. In a gas range, a manifold having four gas cocks thereon, each of said cocks having two nozzles, and a burner connecting with each of said ports inthe top thereof arranged within the area ycovered by the usual cooking vessel, the two nozzles oneach of said cocks projecting respectively into the two mixing tubes in each of said burners', ther mixing tubes on two of said burners extending to one side of center lines through said burner heads, the mixing tubes of the other two burners extending to the other side of center lines through said burner heads. said center lines being perpendicular to said manifold, any one of said mixing tubes being wholly outside the horizontal projection of any other mixing tube, each mixing tube comprising the entire passage between its respective nozzle and its respective burner section.

6. In a gas range, a manifold with a plurality of gas cocks thereon, two front burners and two rear burners each having two mixing tubes and two burner sections, each mixing tube connect-l ing with one of said sections, each of said two sections in each burner having burner ports in the top thereof, the burner ports in the said two sections in each burner being arranged within the area of the usual cooking vessel, and gas nozzles on said gas cocks, one of said nozzles projecting into each of said mixing tubes in the aforesaid burners, each of said mixing tubes being in substantially the same plane as its respective burner section.

7. A gas range burner having two sections and two mixing tubes, one of said tubes connecting to each of said sections, burner ports in each of said sections arranged within the area of the usual cooking vessel. a wall separating said tubes and` said sections, and chaplet means projecting-from each side of the said wall separating said mixing tubes and said sections.

8'. A double gas range burner having two sections and two mixing tubes connected therewith, said tubes being laterally displaced the one from the other, at least one of said tubes entering at least partially on the opposite side of said burner from the location of the other end of said tube, each tube and its respective section being entirely Outside the horizontal projection `of' thejother tube and other section. n

v9. In a gas` range, a manifold, and two systems of burners, each system consisting of a front and rear burner on a common centerline i perpendicular to said manifold, each burner having a gas cock in connection therewith attached to the said manifold, the spacing betweenvthe two cocks in the Isame systemvbeing .substantially twice the spacing between the two adjacentv cocks of the two separate burner systems, and the spacing between the two cocks farthest yapart of the four cocks in the two systems being greater than the distance between the center lines drawn through a front and rear burner head in each system.

10. A gas burner with a burner head having two sections, each section having burner ports therein, said burner ports being arranged within the area covered by the usual cooking vessel, said burners having two mixing tubes, a tube connecting to each of the said sections, said mixing tubes being laterally displaced one from the' other, a gas cock attached to a manifold, said cock having two nozzles, one projecting into eachv of said mixing tubes, one of said mixing tubes joining its section at least partially on the nearer side of said burner head to said manifold, the other mixing tube joining its section wholly on the farther side of said burner head from said manifold.

11. In a gas range, the combination of a gas cock having two nozzles, a manifold, and a rear burner having two sections and two mixing tubes, each of said mixing tubes connecting with one of said sections, one of said mixing tubes being laterally displaced from the other, one of said sections being larger than the other, said nozzles on said cock being arranged to project one into each of said mixing tubes, a front burner, a gas cock connected to said front burner, both of said mixing tubes being displaced entirely to one side 0f a center line of said burners perpendicular to said manifold, the one of said mixing tubes ,connecting to the smaller of said sections being nearer to the said center line than the other of said mixing tubes.

PHILIP S. HARPER.

Images