US1664508A

US1664508A - Gas burner

Info

Publication number: US1664508A
Application number: US439905A
Authority: US
Inventors: Philip S Harper
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-01-26
Filing date: 1921-01-26
Publication date: 1928-04-03
Anticipated expiration: 1945-04-03

Description

April 3, 1928.

Y P. s. HARPER GAS BURNER INVENTOR.

Filed Jan. 26. 2 Sheets-Sheet l BY I W P. S. HARPER GAS BURNER April 3, 1928. 1,664,508

Filed Jan. 26. 1921 2 Sneets-Sheet 2 I INVENTOR. w

TORNEYS.

Patented Apr. 3, 1928.

' UNITED STATES PHILIP S. HARPER, OF CHICAGO, ILLINOIS.

GAS BURNEB.'

Application filed January 26, 1921. Serial No 439,905.

My invention relates to a gas burner and particularly to agas burner of the type in household use for cooking purposes.

The primary object of my invention is a gas burner which will provide the advan-L tageous quickheating of the largest burner and automatically'at the same time provide the efiiciency of the smallest burner when reduced heat is required.

v It has been determined by experiment that a vast amount of heat is lost when the flame from a gas burner is out of contact with the bottom of the cooling vessel and this is particularly truev when the ordinary gas burner is turned low and the flame extends but a very short distance above the gas burner. In such instances it would be more advantageous to shut off the flow of gas from a portion of the gas burner and allow a portion of the burner to remain burning at full force.

To accomplish this I have devised a burner divided into sections, each section having an individual tube where gas to a particular section is brought into mixture with air; and I have devised a common control means for admitting a supply of gas to some or all of the mixing tubes as the conditions require so that one or more sections of the burner can becut off without disturbing the burning in the remaining sections.

I am aware that burners of this type have been devised wherein any, number of sections may be burned by manipulation of a common cock, but in my burner I claim a particular arrangement of parts so as to make a burner of this type adapted to the space available on the usual gas ran e, a burner having a very much smaller an less 4 expensive cock than heretofore employed,

and a burner of such simplified arrangement as to be more easy of manufacture and more reliable in operation. Y

Another object of my invention is the provision of a sectional gas burner having a common means of control for all of the sections so arranged that the force of the burner can be reduced in certain sections while allowing other sections of the burner to burn with full force. For instance, the

outside section of the burner can be turned down while the intermediate and center sections are allowed to remain at full force and a slightly greater turn of the control valve will completely shut ofi the outside section and still not afi'ect the flame of the inner sections. By further closing the control valve, the flame-of the intermediate section will be turned lower, the'center section remaining at full force and so on until we have only the center section burning which may also be turned down for a minimum supply of heat. It will thus be understood that by varying the condition of the control valve any egree of heat regulation may be obtained.

These and other objects of my invention will be more fully and better understood by reference to the accompanying sheets of drawings, in which 1 Figure 1 is a partial sectional plan view of a three-section burner taken along line II of Figure 2;

Figure 2 is a vertical sectional view'taken on line IIII- of Figure 1;

Figure 3 is a vertical sectional view taken on the line III-III of Figure 2; and

Figure 4 is a longitudinal sectional view of a two-section gas burner as distinguished from a three-section burner as shown in Figures 1, 2 and 3.

Referring now specifically to the drawings, a gas supply pipe 10 is shown to which a valve casing 11 is secured in any approved manner, the valve casin 11 havin a valve member 12 extending 51 has a threaded nut 13 on the lower end thereof, with a spring 14 interposed between the erethroug which nut 13 and a washer 15 which bears against the valve casing 11 and provides means for holding valve member in proper position, yet allowing the said valve member 12 to be turned for the admission of gas as hereinafter described. Extending longitudinally of the valve casing 11 and s aced apart from each other is a plurality o passages 16, 17 and 18 which vary in size for a purpose to be disclosed. Extending transversely through the valve member 12 is a plurality of passages 19, 20 and 21, the said passages corresponding in size to the passages 16, 17 and 18 respectively, that is, the passage 19 is the same size as the passage 18, the passage 20 is the same size as thepassage 17, and the passage 21 is the same size as the passage 16. The passages 16, 17 and 18 in the valve casing 11 extend on the opposite side of the valve member 12 from the gas supply pipe 10 and connect with enlarged

passages

22, 23, and 24, the connection in each case being closed'by an adjusting screw 25 by which various degrees of opening may be obtained between passages is initially sup lie areas t opening of its 16, 17 and 18 and respective enlarged

passages

22, 23 and 24. These enlarged

passages

22, 23 and 24 lead in respective order 1 to a plurality of gas nozzles 27, 28, and 29 in -which are

passages

30, 31, and 32 in connection with respective restricted

openings

33, 34, and 35. The gas nozzles 27, 28, and 29 project through a sliding air shield 44 and into the burner body 36 in such'amanher that restricted

openings

33, 34, and discharge into

mixing tubes

40, 41, and 42, each to its respective tube, the said

mixing tubes

40', 41 and 42 are placed one above the other in a common casing,.and said tubes in the form of the invention shown are in a common vertical plane with the gas nozzles 27, 28 and 29. Of the said mixin tubes 40,

41, and 42, each has openings 9 to t e outside air the area of which openings may be adjusted by loosening the screws 43 and mov- '1ng air shield 44 to or from the burner 36 as the case may be. The burner body 36is divided/into a plurality 'of

sections

37, 38,

and 39 which connect respectively to beforementioned

mixing tubes

40, 41 and 42. Each section 37 38, and 39 has a number of the.

usual openings 26 through which the combustible mixture asses and burns from the tep of burner b0 y 36 in the usual manner. It will be noted that section 37 extends around the outer ed e of burner body 36 and with" gas through the passage 16 in va ve casing 11; in like manner section 38 is supplied by passage 17 and section 39 by passage 18. It will also be noted that the passage 16 is smaller in size than either of the other passages 17 and 18 so thatas the member 12 is turned the passage 16 is closed before either of the other pas-.

sages 17,- and 18 are closed. Consequently gas will pass to

sections

38 and 39 with section 37 c osed 011' and for the same reason gas will still pass to section 39 after the closing off of

sections

37 and 38. Now the passages 16, 17 and 18 are sufliciently difi'erent in size, each from the remaining, and sufficientl large in size as compared with other lirough which the gas must pass that gas sup ly to any section is not ap reciably dim'inis ed on the turning of the va vemember 12 until the next section situated outside from the one in question is entirely cut 03..

This result is more easily accom lished in .the design since section 38 is smal er. in size than the section 37 and requires less gas for a full height flame, consequently the artial larger supply port 1 may easily be made pro rtionate to its required amount of gas; an in the case of the smallest section 39 being supplied by the largest port 18, it is evident that only a very small opening of this port-is required to su ply this smallest section with its normal ful gas supply. It will be seen that as the valve member 12 is turned toward the closing POSI- position to make a similar adjustment of.

screws 25- to givethe desired full height flame on the'normal gas pressure employed before the burner. Then on the regular operation it is only necessar to control the burnin by the turning of t e valve member 12 in t e customary manner. I 'By inspection of the flames, as is customa'ry in any gas burner when turning the gas lever downward, an operator in entirely cutting off one section may turn the lever just so far as to very slightly lower the flames of the next innermost section, and in this wa make certain that the section being out o is'entirely cut oil and that there is no s'mall amount of gas still escaping.

.In Figure 4 I have illustrated a modified form of my invention and in which a burner body 45 is shown havin two

sections

46 and 47, the section 47 extendmg circumferentially around the outer portion of the burner body 45 and being supplied with gasin much the same manner as the burner shown in Figures 1, 2 and 3 and previously described. A gas supply pipe 48 is provided having a valve &

casing 49 secured thereto through which a that in this form of my invention I have omitted a permanent adjusting screw -forthe gas to the outer section 47 as the height of maximum flame from this section could be regulated by the valve member 50 or this part of the burner could be equipped with an adjust ble nozzle in accordance with present practice. Passages 54 and 55 extend through the valve mem er 50'and are the same size as the passages 51 and 52 respectively. Gas nozz es 56 and 57 are secured to the member 49 and have

passages

58 and 59 respectively therein with restricted communicating

passages

60 and 61 which discharge into the

mixing tubes

62 and 63 laced one above the other in the burner 45. An opening 64 is provided through w ich air is admitted to the. mixing tube 62 and on which in this instance no adjustment is supplied as is often customary in small burners. The usual rotating member 67 and stationary member 65 are supplied J for adjusting air supply to large mixing tube 63. It will be understood that by turning the member 50 in this form of my invention that the assage 52 is closed prior to the closure of t e passage 51 and thereby the flame through the outside; section 47 of the burner can be turned down or controlled in any manner while section 46 is burning at full capacity. By further turning of the valve member 50 the gas'is completely shut ofi from the mixing tube 63 which leads to the outer section 47 of the burner and thus completely shuts 03 this section while allowing the center section 46 to continue in full operation or be reduced as required.

It can be seen from the fore oing that I have devised a fuel burner whic has all the combined advantages of a plurality of burners of difierent sizes and, as Well, have incorporated other advantages which will be ap-.

parent without further description.

Wh1le I have described more or less preclsely thedetails of construction, I do not wish to be understood as limiting 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 withoutdepartin from the spirit or scope of my invention.

I claim: 1. In a gas burner, a burner body member having a plurality of heating sections, said sections being arranged within the area covered by the usual cooking vessel, and hav- 1 ing a plurality of burner ports in the upper of each ofsaid burner sections, a plu rality of mixing tubes connecting directly into said sections, each tube to its respective section, each of the said mixing tubes bein positioned one above the other, and eac tube separated from another by a substantially horizontal wall; a valve casing having a plurality of passages therein leading to the said mixing tubes; and control means I in the said valve casing.

2. In a gas burner, a burner body member Y having a plurality of heating sections, said sections being arraHged within the area coveredby the usual cooking vessel, and having a plurality of burner ports in the upper side of each of the said burner sections, a plurality of mixin tubes connecting directly into the said sections, each tube to its respective section, the said mixing tubes comprising passages in a. common casing, each of the said mixing tubeS being positioned one above the other, and each tube separated from another by a substantially horizontal wall, a valve casing having a plurality of assages therein leading to the said mixing tu es, and I control means in the said valve casing.

3. In a gas burner, a burner body member having a plurality of heatin sections, said sections being arranged within the area cov- "ered by the usual cooking vessel, and having a plurality of burner ports in-the upper side of each of said burner sections, a plurality of mixing tubes connecting directly into said sections, each tube to its respective section, each of the said mixing tubes being positioned in a common casing one above the other, and each tube separated from another by a substantially horizontal wall, a valve casing having a plurality of passages therein leading to the said mixing tubes, and a rotatable valve member so arranged in said casing as to intercept said passages at difierentpoints along the axis of the said rotatable valve member.

4:. A gas burner comprising a plurality of heating sections, said sections being arranged within the area covered by the usual cooking vessel, and having a plurality of burner ports in the upper side of each of a substantially horizontal wall, a valve casing having a plurality of passages therein leading to the said mixing tubes, said passages bein positioned in a common vertical plane, and control means in the said valve casing. v

5. A gas burner having a plurality of burner sections and a plurality of mixing tubes equal to the number of said burner sections, a' gas supply pipe, a valve casing having a plurality of passages having different diameters, a rotatable valve member having transversely extending passages therethrough corresponding insize and number to the passages in said valve casing and positioned 'in the same vertical plane, whereby when the valve member is turned some of the said passages are open while others are closed;

'6. In a gas burner, a burner bodymember having a plurality of heating sections, said sections'being arranged within the area covered by the usual cooking vessel, and having a plurality of burner ports in the upper side of each of the said burner sections, a pluralit of mixing tubes connecting directly into t e said sections, each tube to its respective section, a valve casing having gas supply passages therethrough leading to the said mixing tubes, a rotatable plug in theisaid casing having passages corresponding in size to assages 1n the said cas1ng,-sa1d passages ifi'ermg in diameter whereby on rotation of the said plug the smaller passages close before the larger.

7. In a gas burner, aburner body mem- I of burner ports in the upper si each of said burner sections, a plurality of mixing 7 tubes connecting directly into the said sections, each tube to its respective section, a v lve casing having gas supply passages therethrough leading to said burner sections by way of said mixing in the said casing tubes, a rotatable plug aving passages corresponding in size to passages in the said casl0 ing, said passages differing in diameter whereby on rotation of the said plug the smaller passages close before the larger, a smaller one of said passages leading to a larger one of said burner-sections.

Signed at Chicago, Illinois, this 18th'day of January, 1921. l

. v PHILIP S. HARPER.