US1456822A - Gas range - Google Patents

Description

May 29, 1923. 1,456,822

ITI. W. ODOWD GAS RANGE Filed June 'ej 1921 v 2 sheets-sheet 1 :i a. I: /211 r-/ 45 Y ii 13 1 5"- ff/@ ',6 1 I l; o /z ,38 40 L t 39 Iv' A HHH H'HHHIU .ff /7 'a4 T-. 7 11 1 2; ffl 1f .1H j?. :J I I 1' 55 E I 2z 59 v `INVENToRv L Wan-.4

ATTORNEY Patented 'May 29, 1923 STATES par ormoni.

HENRY W. ODOWD, OF JERSEY CITY, NEW JERSEY, ASSIGNORTO WILLIAM M. CRANE COMPANY, A CORPORATION OF NEW YORK.

GAS RANGE.

Application filed .Tune 6,

To all whom t may concern.'

Be it known that I, HENRY W. ODown, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Gas Ranges, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates generally to apparatus for heating and cooking by gas, or other fluid fuel of analogous character. More specifically, -it appertains to an improved construction and arrangement of the various parts constituting the combustion chamber of a gas-stove, and its flue equipment.

One object of the invention is to Aprovide a range of the type set forth having a closed top adapted to be heated by an underlying centrally located burner assisted by circumferentially disposed radiating elements, so'

arranged that the heat will be uniformly distributed in all directions.

A further object is the provision of a flue su rronnding the combustion chamber and through which the products of combustion are caused to pass, thus affording the closed top and the underlying radiating elements additional time to absorb the heat units still remaining in the burning gases prior to their exit from the range.

Other objects and advantages of the invention will in part be obvious and in part be more fully brought out in the following description.

The invention consists in the novel vimprovements, parts, combinations, and fea tures of construction herein shown and described. i

In the accompanying drawings, which are referred to herein and form part hereof, are illustrated certain embodiments of the invention, the same serving in connection with the description herein, to explain the principles of the invention.

Of the drawings:

Fig.V 1 is a top plan view, partly in section, of a gas-range embodying one form of the invention;

Fig. 2 is a front elevation, partly sectioned, of the same form of gas-range;

Fig. 3 is a vertical transverse section of the range shown in the two preceding views;

1921. Serial No. 475,182.

Fig. 4 is a top plan view of a as-range embodyingthe invention in a slig tly different form; and y Y Fig. 5 is a vertical cross-section of the modified form of range shown in Fig. 4, somewhat enlarged.

The body of the range, denoted as a whole by the reference numeral 11, may be of any suitable shape or design, but is preferably made square or rectangular as shown in the several views of the drawings hereto annexed. In both forms of the invention lexemplified the range has an upper combustionchamber 12, which may'extend the full length and width of the body 11, vexcept a relatively narrow space around the said chamber reserved for a flue 13. The chamber and the circumjacent flue are covered by a closed cooking top, which may consist of interfitting parts, as 14l and 15, laid upon the walls of the chamber and flue, respectively. A oor plate'12, attached to the outer walls of the range, completely covers the lower part of the chamber and flue. By preference, the combustion chamber and the surrounding Hue lare separated by common walls l2b which are formed with apertures 16, conveniently made in series, at regular intervals apart, to establish communication between the two.

In the form of range represented by Figs. .1, 2 and 3, secondary air`to support combustion is sup-plied to the burner through a channel or passage 17 provided between the floor plate 12a and a. duplicate underlying plate 17a spaced therefrom. The air enters the passage 17,` preferably, through a. series of inlet openings 18, made in either or both of the side walls of the body 11. One or more similarapertures, as 19, are formed in the floor plate 12a ofthe combustion chamber to admit the air therein directly beneath `the burner. The products of combustion, after passing through the A flue 13, as before described, escape throu h an exit 21 formed in the rear wall of t e Hue and opening into a pocket 22 at the back of the range that has an outlet 23 for connection to a chimney. A natural draught is thus e'ected through the range, which insures a positive heat circulation.

A Bunsen burner 25 is mounted approximately in the center of the combustion chamber 12. Preferably and as shown, this burner is of the multiple ring variety and adapted for the burning of gas, either natfront wall of the range, and receiving the fuel-gas from feed-pipes 28, coupledv to a manifold 29, and furnished with plug-valves 31. The rings of the burner are concentric as ordinarilyvmade, and are positioned flatwise in a substantially central location within the combustion chamber, directly under the closed top before mentioned.

The burner 25 is mounted in a pan or shield 34, placed flatly on the floor plate 12a of the combustion chamber 12, and formed on its upper face with projections 35, upon which the burner is seated at predetermine points. The central portion of the pan 34 is also provided with perforations 36 registering with the air inlet openings 19 in the floor plate 12a, thus providing for the admission of the external air into the combustion chamber from the passage 17. The projections 35 keep the burner at the proper elevation to enable the air passing through these openings and perforations to lflow freely under and up through the burners rings, where it promotes combustion of the gaseous fuel at the flame ports. However the rings are maintained at a predetermined distance from the overlying closedtop so that the flames issuing from the burner ports, and'fanned by the inflowing air, may impinge against the under side of the top in heating it in the desired manner.

Around the burner 25, and the pan 34, is placed a bed or layer of refractory material 37, such as fire-brick, capable of absorbingv heat and transmitting it by radiation. The material, as indicated in Figs. 1 to 3, is preferably made to extend throughout the entire area of the combustion chamber 12, with the exception of a central pit or recess in which the burner and pan are situated. Thus, the material forms a continuous .bed extending inwardly from the inner sides of the flue 13, to and around the burner-supporting pan 34. The bed vor layer 37 is raised from the floor of the combustion chamber to center it vertically therein, and consequently leaves a hot air space 38 underneath, in addition to the combustion space above. It rests at the outer and inner edges upon flanges 39 and 40 procombustion chamber except beneath the burner 25.

Owing to the height at which the bed of refractory material is laid inside the cham- `ber 12, in the construction represented in Figs. 1-3, the flame ports of the burner 25 stand a little below thesurface of the bed 37, and thereforethe refractory material is -In favorable conditions, the surface of the refractor material is coeextensive with the area of ame spread, dependmg of course on gas-pressure. Inasmuch as the combus- ,ti0n chamber 12 is practically surrounded by the flue 13 and separated from the same by the intermediate walls or partitions 12",

the refractory material necessarily collects much of the heat resulting from the gas consumption, and then in turn radiates it equally inall' directions. The parts above and below the radiating material are thereby heated, and in particular the closed top which is exposed directly toV the burner flames. The products of combustion entering the flue 13, through its series of apertures 16, are kept hot for a longer period or more intensel heated by virtue of the radiation, and tie fuel-gas is more thoroughly consumed before the residuum reaches the outlet. The heat derived from the products passing through the flue is naturally imparted to the closedtop, which is thus heated to its outermost margin although but a single burner is employed.

Figures 4 and 5 illustrate a range construction similar to that hereinbefore disclosed, but involving a modification in the manner Vof setting the refractory material. 1n this modified structure, the bed 37 rests directly upon the floor plate 121l of the combustion chamber 12, and consequently the upper space between the bed and the top plate is enlarged so that a heavier burner may be used, if the size of the range will permit. However, the burner 25 employed in the modification is situated in a pit or recess provided therefor in the center of the bed 37, as in the previous case, although the flame ports lie above the surface ofthe refractory material, which extends from the pit or recess outwardly' to the walls of the chamber 12.

In both embodiments of the invention herein described, the bed of refractory material is arranged so as to bear at opposite sides on the pan 34 wherein the burner is mounted, andl consequently serves to stabilize the latter. Thus in Fig. 2, the material is shown resting upon a flanged portion40 of the pan 34; and in Fig. 5, the pan is caught under the material, which is suitably groovedl and recessed to receive it. y

Ovens 56 are provided in both forms of the range, as herein exemplified. In each case, the products o f combustion rise from the oven into a horizontal Hue 57, extending under the air passage 17 belowl the combustion chamber 12, each oven being heated by aseparate burner (not shown) and the products ascending through apertures 58. The discharge is somewhat different, however, in these ranges. As indicated in Fig. 3, the products from the Hue 57 are led directly into the pocket 22, through one or more openings 59, whereas in Fig. 5, the

- arrows represent the products as passing from the Hue 57 into the Hue 13, through other openings, as 60.

The invention in its broader aspects is not limited to the precise constructions shown and described, nor to any particular mode of-construction by which the same may be carried into eH'ect, as many changes may be made in the details without departing fiom the main principles of the invention and withoutsacrificing its chief advantages. Y

I claim: A A

1. A gas-range including acombustion chamber presenting apertui'ed side and end walls, a closed top covering said chamber, a Hue lsurrounding the chamber walls and in communication with said chamber through the apertures of its side and end walls, a

central burner, and a bed of heat-radiating material arranged between the burner and Hue and adapted to disseminatethe heat from said burner uniformly in all fdireC.- tions.

2. A gas-range comprising -an inclosed combustion chamber provided with an inlet for secondary air, a burner located in said chamber, a Hue surrounding the chamber, communicating therewith at all sides, a bed of heat'radiating material intermediate of the burner and said Hue, and means including an outlet for the pro-ducts of combustion arranged to`cause a draught from said inlet to the flaming burner, thence in all directions across the surface of said material, and through the Hue to said outlet.

3. A gas-range including a combustion chamber having an air inlet. a closed top covering said chamber, a Hue extending around the chamber and communicating therewith at all sides, and a burner located within the combustion chamber and having flame ports approximately centered with relation to the Hue. v

4.-. A gas-range including a combustion chamber having a localized airinlet formed in the bottom thereof, a burner located in said.chamber above the air inlet, a closed top covering the chamber, a bed of radiat-l ing material surrounding said burner and spaced from said top,and a Hue Vcirciimi- I scribing the combustion chamber and incommunication therewith.'

5. A gas-range incl-uding a combustion chamber, an exterior passage for secondary air extending thereunder, a surrounding Hue in communication with thev chamber, a

burner mounted in the chamber, a bed of refractory material arranged between said top covering the'combustion chamber,a bed'` of refractory material disposed around the burner, a Hue circumscribing. the combustion chamber, and means Afor preventing the secondary air from ascending into'tlie space between the refractory `material and the closed top without passing the burner.

7. A gas-range including a combustion chamber formed with an air inlet in its bottom, a closed top covering said chamber, a burner therein,l a bed of refractory-material around said burner, a' pan wherein theburner is mounted and apertured to register with the air inlet, and a Hue surrounding the combustion chamber and communicating therewith.

8. A gas-range including a combustion chamber formed in'its bottom with a localized air inlet,.a Hue extending around saidA chamber, a wall or partition separating the chamber and Hue, said wall being apertured to admit the products of combustion into said Hue at all sides of the combustion chamber, a closed top covering the chamber, a burner mounted therein above the air inlet and a bed of refractory material laid between the burner and the separating wall and located below the apertured portion thereof.

9. A gas-range includinga combustion chamber with an' inlet for secondary air, a surrounding Hue apertured to receive the products of combustion from said chamber and having an exit therefor, a closed top covering the chamber, a burner, a bed of refractory material interposed lbetween the Hue and burner, an oven provided with a discharge adjacent the Hue `exit and having no other communication with the Hue, and

a common outlet for the products issuing a Bunsen burner located in said chamber,

and means for preventing the secondary air from entering the combustion chamber without, passing the burner.

ing the burner and covering the combustion f chamber, and means for preventing any portion of the secondary air from entering the combustion chamber without passing -the burner.

12. A gas range including a closed cooking top, an underlying inclosed combustion chamber substantially coextensive With the cooking top and having an exit for the products of combustion, a Bunsen burner located in said chamber, a secondary air channel located outside of said chamber, and means for directing the secondary air from saidl air channel to the underside of the burner.

13. A gas range including a closed cooking top, an underlying inclosed combustion chamber substantially coextensive with the cooking top and having an exit for the products of combustion, a Bumsen burner located in said chamber, and inlet openings formed in the bottom of the chamber and located solely beneath the burner for admitting secondary ai'r to the underside of the burner.

14:. A gas range including an inclosed combustion chamber having an exit for the products of combustion, a Bunsen burner located in said chamber, inlet openings formed in the bottom of the chamber and located solely beneath the burner for admitting secondary air to the underside of the burner, and a shield underlying the burner and formed with air openings registering with those in the bottom of the combustion chamber, the said shield serving to prevent the entrance of secondary air into the combustion chamber without passing the burner.

15. A gas rangex including an inclosed of secondaryair into the combustion cham-V ber except through the openings formed in the burner shield.

16. A gas range including a closed cooking top, an underlying inclosed combustion chamber Vsubstantially coextensive with the cooking top and having an exit for the products of combustion, a Bunsen burner located in said chamber, a secondary air channel extending along the underside of the combustion chamber, and openings formed in the bottom of said chamber'and arranged solely beneath the burner for admitting secondary air from the ai'r channel to the underside of the burner.

17. A gas range including an inclosed combustion chamber having an exit for the products of combustion, a Bunsen burner 1ocated in said chamber, a secondary air passage extending along the underside of the combustion chamber, and a shield underly;

ing the burne'rand partly covering the sam'e and formed with openings communicating with the secondary air passage.

18. A gas range including an inclosed combustion chamber having an exit for the products of combustion, a Bunsen burner 1ocated in said chamber, an ovencldocated beneath the combustion chamber, and a secondary air passage extending between the combustion chamber and the underlying oven and communicating with the former through openings formed in the bottom thereof.

In testimony whereof, I have aiixed my signature hereto.

HENRY W. ODOWD.

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