US1388433A - Gas-burner - Google Patents

Description

-- I 'A. H. AND 6. An HUMPHREY. v

GAS 'BURNER. APPLICATION FILED AU G.3, 1920.

1,388,433 PatentedAug. 23,1921.

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GAS BURNER. APPLICATION FILED was. 1 920.

Patented Aug. 23, 1921.-

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ALFRED H. HUMPHREY AND GEORGE A HUMPHREY, or NEW YORK, N. Y.

GAS-BURNER.

Specification of Letters Patent.

Patented Aug. 23, 1921.

Application filed August 3, 1920. Serial No. 400,895.

To all whom it may concern Be it known that We, ALFRED H. HUM- PHREY and GEORGE A. HUMPHREY, citizens of the United States, residing at the cit and county of New York, State of New ork, have invented certain new and useful Improvements in Gas-Burners, of which the following is a specification.

This invention relates to improvements in gas burners.

The main objects of this invention are:

First, to provide an improved gas burner of very high efiiciency.

Second, to provide an improved gas burner in which the heat units are very effectively directed to an article being heated, such as a cooking utensil.

Third, to provide an improved gas burner in which both the direct heat of the flame and the radiant heat are utilized.

Further objects, and objects relating to structural details will definitely appear from the detailed description to follow.

We accomplish the objects of our invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of our invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Fig. I is a plan view of a structure of the gas plate type embodying the features of our invention, the gas supply pipe and valve and supigorts being broken away.

Fig. is a detail view. partially in vertical section on a line corresponding to line 2-2 of Fig. I, a cooking utensil being shown arranged upon the top or grid.

Fig. III is a detail view artially in section corresponding to Fig. I of a modified form of our invention, the modification beingvin the bafile member and its sup orts.

ig. IV is a plan view of the ba e member of Fig. III.

Fig. V is a plan view of another modification or embodiment of our invention in which the baflle members are omitted.

.Fig. VI is a detail view partially in section on a line corresponding to line6-6 of Fig. V, a cooking utensil being shown on the grid ortop.

Flg. VII is a detail view partially in vertical section of another modification in which our improvements are adapted to a burner of the annular type.

In the drawing similar reference characheated such as a vessel 3 shown conventionally in Figs. II and VI. The burner embodylng the preferred form of our invention is shown in Figs. I and VI and comprises a body or head 4 having a bunsen 5 receiving the as from the nozzles 6, see Fig. V. The delivery of the gas from the supply pipe 7 is controlled by the valve 8. As the arrangement of the valve and the bunsen are well understood, we do not describethem with further detail herein. I

The burner is provided with a plurality of tips 9. These are preferably of the struc-. ture shown in Letters Patent, No. 1,245,346, issued November 6, 1917, to the applicant, Alfred H. Hum hrey, such burners being especially desira le for use with our improvements. The burner tips 9 are disposed through openings 10 in the pan or bowlshaped deflector member 11 which constitutes a combustion chamber for the burner and a deflector and guard whereby the burner is protected from air currents and the heat is directed upwardly through the grid, not only the direct heat of the flame but also the radiant heat. The deflector member is disposed with its upper edge adjacent to but spaced from the under edge of the rid.

This fire. back or deflector member 11 is formed of an earthy or fire clay composition adapted to become incandescent when heat; ed, and is of substantial body. The deflector member is preferably provided with an outer metal shell 12 which is well protected from the heat, and may be enameled or otherwise finished. The burner tip openings '10 are of such dimensions as to provide for the structure illustrated being in the form of radially disposed fins formed integrally with the deflector member.

To protect the burner tips and also to increase the radiant heat quality of the burner, we mount baflle plates 14 above the burner tips. These are preferably mounted on posts 15 formed integrally with the deflector member and grouped about the openings 10 supporting the plates as illustrated. These. baflle members must be formed of some material which will withstand intense heat, nichrome being very satisfactory.

In the modification shown in Figs. III and VI the baflle member 16 is formed of a plate having solid baffle portions 1'7 located above the burner surrounded by perforations 18 for the passage of the products of combustion. In the modification shown in Figs. V and VI, the baflle members are omitted entirely. This embodiment is very satisfactory although it is an advantage to protect the burner tips from liquids and the like which may fall upon the burner as the result of boilingover or the spilling of the liquids thereon.

In the modification shown in Fig. VII, the annular burner 19 provided with a plurality of jet orifices 20 is arranged within the deflector member 21. In this embodiment the deflector member has holes 22 in the bottom thereof for the passage of the secondary air. The internal projections are omitted in this embodiment.

In the embodiments shown in the other figures, in addition to the flange-like projections on the side portions of the deflector, we preferably provide the bottom with a series of conical projections 23. These internal projections materially increase the radiating surface of the deflector. In use, the deflector constitutes a combustion chamber for the burner, rotecting it from air currents which would (iieflect or carry away the heat, further, it becomes heated to incandescence in use as do also the baflle members so that a large amount of radiant heat is directed upwardly through the grid.

Ve find that our improved burner has the further adVa-nta e of consuming a very high percentage of t e combustible portions of the gas, and is of exceedingly high efliciency.

We have not illustrated ordescribed certain adaptations and embodiments of our invention which we contemplate as being desirable in applying our improvements in other relations as we believe the disclosure made will enable those skilled in the art to which our invention relates to embody or adapt the same as may be desired.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. The combination with a grid, of a gas burner having a plurality of upwardly projecting burner tips, a pan-shaped deflector member disposed with its upper edge adjacent the under side of said grid and having openings in its bottom through which said burner tips project, there being spaces around said tips for the passage of secondary air thereto, said deflector member being of earthy material and having integral radially disposed internal fins and an integral baffle plate supporting posts disposed about the burner tip openings thereof, baffle plates disposed on said posts above said burner tips, and an outer metal shell. for said deflector member.

2. The combination with a grid, of a gas burner having a plurality of upwardly projecting burner tips, a pan-shaped deflector member disposed with its upper edge adjacent the under side of said grid and having openings in its bottom through which said burner tips project, there being spaces around said burner tips for the passage of secondary air thereto, said deflector member being of earthy material, and an outer metal shell for said deflector member.

3. The combination with a grid, of a gas burner having a plurality of upwardly projecting burner tips, a pan-shaped deflector member through which said tips are disposed, said deflector member being of fire resistant material adapted to become'incandescent when heated and integral baflle plate supporting posts, and baflle plates disposed on said posts above said burnertips.

resistant material adapted to become incandescent when heated and having integral internal projections.

5. The combination of a burner and a deflector member therefor open at the top and having a secondary air opening at the bottom, disposed to constitute a combustion chamber for said burner, said deflector member being of earthy material and provided with integral radially disposed internal fins and integral bafile plate supporting posts, and a baflle plate arranged on said posts above the burner tips.

6. The combination of a gas burner and pan-shaped deflector member disposed to constitute a combustion chamber for the burner, said deflector member being of fire resistant material adapted to become incandescent when heated and being provided with internal integral fins. I

7. The combination with a grid, of an upwardly flaring pan-shaped deflector member disposed below said grid with its upper edge adjacent to but spaced therefrom, said dein its bottom and being of fire resistant material adapted to become incandescent when heated, and a gas burner disposed below said deflector member and having a plurality of tips projecting upwardly through said open-, ings in said deflector member with the ends of the tips substantially flush with the bottom thereof, there being a space around said tips for the passage of the secondary air.

8. The combination with a grid, of an upwardly flaring pan-shaped deflector member disposed below said grid with its upper edge adjacent to but spaced therefrom, said deflector member being of fire resistant material adapted to become incandescent when heated, and a gas burner disposed below said deflector member and having a plurality of tips projecting upwardly through the bottom of said deflector member with the ends of the tips substantially flush therewith.

9. The combination with a grid. of a gas burner, an upwardly flaring pan-shaped deflector member of fire resistant material adapted to become incandescent when heated, disposed with its upper edge adjacent to but spaced from said grid, said burner being disposed so that the deflector member constitutes a combustion chamber and so that the flames are delivered at the bottom thereof, and a baffle plate disposed above the burner.

10; The combination with a grid, of a gas burner, an upwardly flaring pan-shaped deflector member of fire resistant material adapted to become incandescent when heated, disposed with its upper edge adjacent to but spaced from said grid, said burner being disposed so that the deflector member constitutes a combustion chamber and so that the flames are delivered at the bottom thereof.

In witness whereof we have hereunto set our hands and seals in the presence of two witnesses.

ALFRED H. HUMPHREY. [L.s.1 GEO. A. HUMPHREY. [1 sf! Witnesses I HUBERT R. HUMPHREY, FRANK J. HOGAN.

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