US2604151A - Inclined gas nozzle and horizontal mixing tube for gas burners - Google Patents

Description

July 22, 1952 Filed May 9, 1947 H. H. NADASDY 2,604,151 LNCLINED GAS NOZZLE AND HORIZONTAL MIXING TUBE FOR GAS BURNERS l 2 SHEETS-SHEET 1 y 22, 1952 H. H. NADASDY 2,604,151

INCLINED GAS NOZZLE AND HORI um.

MIXING TUBE FOR GAS BURN Filed llay 9, 1947 2 SHEETS-SHEET 2 Ill L IN VEN TOR.

Patented July 22 195 2 v? INCLINED GAS NOZZLE AND HORIZONTAL I Y j j' MIXING TUBE FOR GAS BURNERS -Henry H. Nadasdy, Chicago, Ill., assignor to Harper-Wyman Company, Chicago, 111., a cor ,poration of Illinois 1 Application Mayo, 1947, Serial No; 747,102 j Claims. (01.158-118) The present invention relates to and has for its primary object the' provision or a new and improved gas burner assembly for inclined panel ranges and a gas valve adaptable to ranges of this type.

Another object of the present invention is to provide a new andimproved structure adaptable to ordinary gas valves for projecting the gas at desired angles relative to: the axis of the gas valve outlet passageway; v

A further object of the present invention isto provide a gas valve-0f the character described above with new and improved meansfor projecting the gas at a desired angle relative to the axis of the'=valve which'comprises structure en-. abling the angle readily to be determined in the course of manufacture;

Another object of the present. invention is to provide a new and improved gas burner assembly and gasvalveforinclined panel ranges so constructed and arranged .as to provide the angular projection of the gasin' an. economical manner withithe use of standardized partsand its accompanying possibility of high volume. production, and permitting the use. of machining lines now used for. conventional valves and wherein the adaptation to inclined panels is made in thefinal assembly line.

.I-Ieretofore, one of the common methods for projecting the gas at different angles relative to the axis of the valve was to make the body with the desired. angle cast or forged into it. This method is not satisfactory because of the large inventories required to supply the demands for the various angles desired, v

- Another practice is the use of a threaded adapter on the valve outlet passageway, which ad pteris a o rov g hed s r le.

This practice is expensive due touthe threading requiredand the necessityof having various angles on hand. 3 l i v A further practice is the use of tubing and fittings connected to conventional valves and whereinthe tubing is bent to the desired angle. ihis method is extremelyexpensive because of the number of parts required. I I

- The present invention provides a simple and economical solutionto the problem, of supplying valves with'means for projecting the 'gas at a desired-angle relative to'the axis of the valve outletapassageway. One of its advantages is that the'valves are made in theiusualmanner up t the point of final assembly; at which point means constructed in accordance'with the present invention-are attached itheretofi This means a jet which is secured to the outlet passageway and constructed with'a discharge opening or orifice projecting the gas coaxially of the gas mixer tube axis. The jet may take various forms. It may be a bored element having a longitudinal milled slot; in which the angle of the milling determines the angle of projection of the gas. It may also be a solid element having amilledslot at its outer end or a solid. element with a passageway having a discharge opening disposed at the desired angle; In allcasesQthe jet may have associated with it a movable hood to provideadjustment of the rate of gas flow-the jet preferably being fixed and the hood adjustable.

. Other objects and advantagesi'of the present invention will become apparent from the ensuing description in the course of which reference is had to'the accompanying drawings,'in which:

Fig. l is a fragmentary cross sectional view of a gas burner assembly constructed in accordance with the present invention and installed upon an inclined front panel range;

Fig. 2 is a fragmentary enlarged crosssectional view taken along line 2-2 of Fig. 3 and illustrating the constructionof a single .jet' and its associated hood and the. cooperative relationship between these and themixer tube, although the valve illustratedgin Fig. 1 includes two outlet jets because it is used with the double burner illustrated in Fig. 1 V v Fig. 3 is atop plan view of the apparatus illustrated in Fig. 2, the view being taken along the line 3-3 of Fig. 2 I r I Fig. 4 is' a view similar to Fig 3 of another embodiment. of the invention} v I g Fig. 5 isa cross sectional view taken along the line 5--5 of Fig. 4, showing also a portionof a mixer tube;

v Fig. 6is a transverse cross sectional view taken along the line 6-6 of Fig. 4; 3

Fig. 7. is a view similar to Figs. 3 aud t of a further embodiment of .the'invention; and

Fig. 8 is-an axial cross sectional view taken along the line'8-8-of.Fig. 7, showing also a portion of the mixer tube. I i

In the past, almost all gas ranges have-been constructed with verticallydisposed frontpanels. In these ranges the gas valves are secured to gas inlet manifolds with their inlets perpendicular to the gas outlets and tothe valve operatingstems and'handles. The stems protrude-perpendicularly through openings .irithe vertical front panel and the gas valve outlet passageways enter inlet openings in horizontal gas mixer-tubes through which the gas is supplied to theburners.

The present invention is directed to a gas burner assembly and gas valve particularly adapted. to gas ranges having inclined front panels and one of its advantages is that it enables the major parts of the valves to be constructed as heretofore and yet provides for the adaptation of the ,valveato inclined front panels .inthe final assembly; At thezsame timeng considerable inventory of parts is required and the construction is simple, as is its adaptability to differentangles of inclination. Thevalves .are particularly adaptable to horizontakmixer tubes but can also be used with inclined mixer tubes; The valves can also be placed either above orbelow the gas supply manifold. g

The burner assembly of the present invention is'illustrated best in Figs. 1 and 2, especially the former. While the assembly may take various forms, it has been shown in conjunction with a double burner having a main burner section 1 l a d. -Q n r-al and-sm er s mmerbum r. s ction; l to. which gas is supplied through'the main. d simmer bu ne se tion mixer tubes-i6 and .8 ndwi wh c a e associateda. double as valvez h v utle assemblies. 22' projectin the gas into the mixer. tubesalong the axes, of the tubes. While buta single assembly. 22 has been illustrated; similarnut difierently dimensioned assemblies are, provided for,the two burner sections. FrQm., Fig. L'itigWill be noted that the major axisof the. valve 26 is inclined. downward- 1y, it being secured thismannerto and above the gas supply manifold 24. by the: valve inlet 26.. The valve operating. stem 28 projects through theinclined front panel-30; ofithe range and the valve handle .32 is secured tothe projecting end ofthe valve's'tem; .1. I l The valve 2lllis thus of conventional construction except for the outlet assemblies 22 of the present invention which enable the valve to be used in an assembly where the axes of the valve and mixer tube'are at an. angle relative to each other. The outlet assemblies are alike except for thedimensions of -aslot; and, therefore; only one will be described." It includes novel struc ture v34,hereinafter termed a j et, T extendinggen erally coaxially forward of "the valve outletp'assageway 3E formed in the externallythreaded outlet passageway defining structure 33. The jet may take various forms, as will appear hereinafter, but in Figs. 2 and 3 it may be seen to comprise a "circ'ularpiece' of metal having a central internal bore 49 at one end oommunicating with the valve outlet} passagway 36." The jetis secured to the valve, preferably fixedly, asby press fit, and it is provided iwith'an externallyknurled hood, which encircles the jet, is made fairly long,

4 Generally speaking, the end 50 is disposed to be approximately parallel to the major axis of the mixer tube and so that the gas is discharged substantially centrally'along the major axis of the tube. Thus, where the mixing tube is horizontal the end 50 of the slot is horizontal, as s ow in Bier-2 It has alsofbeejn found that better operating characteristics and over a wide range of adjustment can be had if the axial surface 52 of the somewhat as illustrated in Fig. 2.

' The jet 34, it may be noted from the foregoing,

may be. constructedreadily and economically and v angle of inclination of the endof the slot to fit it for a. particular front. panel or mixer tube in portion for-the-purpose'of better securingiit to the valve. V

The jet is provided with adischarge opening or orifice 42 at an angleirelative tf'ojtlie axisioflthc jet and consisting," in thisinstan c'a'ofaradial slot extending ovjera'desired length of the jet. The'jet is encircled-by structure 414 hereinafter termed a hood which is movably mountedby its Theangleatwhichthegas is projected is de 'termined by the terminal" angle of the slot, i.- e., the angle of,v inclination of the.end.50 of the slot.

canbe attached to the valve in the final assembly of the latter. Thevalve, up to this point, can be made in thesame manner as conventional valves with the result that existing machinery and methods can be used. Likewise, the hoods and jets for the difierent valves are the same except for the dimensions of the slot and the particular fin-like portion 62 extending in o valve 011121. 4

passageway 36. and secured; as by a. Dress fit, in. the latter. .In this embodiment, the discharge opening is defined by the. slotvfi8g-and the-sun rounding hood .44, thelatter .being'adiustable to vary .the effective; size; of; the discharge orifice and thus the ratev of gas flow. In this embodiment, the gas flow is from the outlet: passageway 36 through the interior 63 of the hood and the discharge opening. Here, also, the angle. at which the gas is projected is. determined by the angle of the endfill of the'fslotrelative to the axis of the valve outlet passageway.

Afurther embodimen-t'of the invention is illustrated in Figs. '7 and 8 to which reference will now be had. In this embodiment the: jet has a-substantially. solid outer end portion 66 and a. diametrical inner portion li'lextendin'g into the valve outlet passageway 36 and to which itis: secured as by a press fit." The end 66 of the jet has a discharge opening li8flocated at the desired angle of discharge of the 'gasand at right angles" to'the outer end surface'lll" of the jet. so that the gas is not only projected-at the desired angle butalso in a uniform manner-. Gas is suppliedto- V the discharge-opening,68-from the interior 63 ofend of the passageway 12- and this is done as before by adjustment of the hood 44.

It is believed that the operation and adJ'ustment of the various embodiments of the inven-- tion will be apparent .fromthe foregoing detailed descriptions thereon It will also be noted that the present invention providesa novel gas burner assembly as well as: a-Lg'asvalve adapted for: use

on inclined panelandinclined mixer tube ga rangea, Thepresent invention accomplishes the desired angular dischargeiof gas by a very 8.0.0?-

nomical device which lends itself to standardization of parts and high volume production and enables the valve to be made with the use of existing machining lines and manufacturing methods up to the final assembly line. It also eliminates the necessity for a high inventory of special valves and valve parts which would otherwise be necessary. Furthermore, it is evident that the valve can be placed either above the gas supply manifold or below it.

While the present invention has been described in detail in connection with different embodiments of the invention, it should be understood that the details thereof are not intended to be limitative of the invention except in so far as set forth in the accompanying claims.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. A gas burner assembly including a mixer tube, a gas valve having valve body structure defining an outlet passageway terminating at an angle relative to the axis of the mixer tube, and discharge defining structure extending from said outlet passageway and including a jet means extending from said structure, said structure and jet means extending only coaxially of said passageway and having a discharge opening having its axis located substantially coaxially of the axis of said mixer tube for projecting gas into said tube.

2. A gas burner assembly as set forth in claim 1 wherein said jet means extending from said structure terminates in a surface inclined relative to the axis of said outlet passageway and the axis of said discharge opening located substantially coaxially of the axis of said mixer tube is substantially normal to said inclined surface.

3. A gas burner assembly as set forth in claim 1 wherein said jet means extending from said structure has a generally diametrical inner end secured to said structure and a substantially cylindrical outer end, the latter having formed therein said discharge opening.

4. A gas burner assembly as set forth in claim 1 wherein said jet means extending from said structure has an inner diametrical end secured to said structure and an outer cylindrical end having an inclined outer surface, said discharge opening being formed in said cylindrical end and having its inlet end open to the periphery of said outer cylindrical end and its exist end substantially normal to said inclined outer surface.

5. A gas burner assembly as set forth in claim 1 wherein said jet means extending from said structure has a generally diametrical inner end secured to said structure and a substantially cylindrical outer end, said cylindrical outer end having formed therein a slot forming said discharge opening having its axis located substantially coaxially of the axis of said mixer tube.

6. A gas burner assembly including a mixer tube, a gas valve having valve body structure defining an outlet passageway terminating at an angle relative to the axis of the mixer tube, discharge defining structure extending from said passageway generally coaxially of said passageway and having a discharge opening located substantially coaxially of the axis of said mixer tube for projecting gas into said tube, and means including a hood located coaxially of said outlet passageway and movably mounted on said outlet passageway defining structure and operatively associated with said opening for adjusting the rate of flow of gas through said opening.

7. A gas burner assembly as set forth in claim 6 wherein said discharge defining structure extending from said passageway includes jet means extending from said structure having an inner diametrical end secured to said structure and an outer cylindrical end with an inclined outer surface, said discharge opening being formed in said cylindrical end and having its inlet end open to the periphery of said outer cylindrical end and its exit end substantially normal to said inclined outer surface, said means including said hood being operatively associated with said inlet portion open to the periphery of said cylindrical end.

8. A gas valve including valve body structure defining an outlet passageway, a jet member having a peripheral slot extending axially thereof secured to and extending from said outlet passageway and defining structure extending generally coaxially of said passageway, said jet having a discharge opening located at an angle relative to the axis of said outlet passageway and communicating with said peripherally slotted portion of said jet, and a hood mounted on said body structure and encircling said jet, said hood and jet being relatively movable to vary the extent of said discharge opening and thereby adjust the rate of fiow of gas through the same.

9. A gas valve as set forth in claim 8 wherein said jet member having a peripheral slot extending axially therethrough is tubular.

10. A jet member for use in a gas burner assembly, said jet member comprising a substantially cylindrically shaped body having a closed end and a bore extending through part of the length of said body, means forming a peripheral slot extending substantially axially of said cylindrical body and communicating with said bore, and a discharge opening located beyond the end of said bore at an angle to the longitudinal axis of said bore and communicating with said peripherally slotted portion of said jet.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 588,227 Kikow Aug. 17, 1897 1,772,870 Lindemann Aug. 12, 1930 1,775,980 Walbridge Sept. 16, 1930 1,981,084 Teller Nov. 20, 1934 2,048,260 Guhl July 21, 1936 2,187,010 Beckman Jan. 16, 1940 2,248,932 Anderson July 15, 1941 2,379,854 Harper July 10, 1945 FOREIGN PATENTS Number Country Date 13,526 Great Britain June 13, 1906 HENRY H. NADASDY.

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