US1730882A - Top-heating means for a combination stove - Google Patents

Description

Oct. 8, 1929. F. A. GERCICH TOP HEATING MEANS FOR A COMBINATION STOVE Filed Aug. 2, 1926 ATTORNEY Patented Oct. 8 1929 UNITED STATES PATENT OFFICE FREDERICK A. GERGICH, OF OAKLAND, CALIFORNIA, ASSIGNOR TO HAMMER-BRAY COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIA TOP-HEATING MEANS FOR A COMBINATION STOVE Application filed August 2, 1926.

My invention relates to means for heating a griddle by gas when the griddle is mounted over a solid fuel fire box.

An object of the invention is to provide means of the character described which may be readily and inconspicuously installed as a permanent fixture in combination stoves of usual structure.

Another object of the invention is to pro- 19 vide means of the character described which may also function as a kindler for the fire box.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of the preferred form of my invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood, however, that I do not limit myself to the showing made by the said drawings and description, as I may adopt variations of the preferred form with in the scope of my invention as set forth in the claims.

Referring to said drawings,

Figure 1 is a fragmentary front view of a stove provided with the device of my invention.

Figure 2 is a fragmentary sectional view taken on the line 2-2 in Figure 1.

Figure 3 is a fragmentary sectional view taken on the line 33 in Figure 2.

Figure 4 is a fragmentary plan view of the stove, portions thereof being broken away.

As herewith particularly illustrated, the device of my invention is incorporated with a gas stove 6 having a cooking top 7 beneath which is disposed a fire box 8 and a top gas burner chamber 9. The top portion 9 above the fire box, it will be noted, is provided with a perforation 11 in which any suitable closure member is arranged to be positioned and seat ed. As here shown, a griddle plate 12 is removably positioned in the top perforation, it being obvious that other closures, such as lidded plates or the like, might be substituted therefor. The fire box 8 and chamber 9 are preferably contiguous, having a common wall 18 between them. It will be notedthat the chamber 9 is comparatively shallow and is provided with a bottom plate member 14on Serial No. 126,651.

Kindler burners 21 and 22 are provided, which burners are preferably independently operable and are arranged to project gaseous fuel horizontally into different portions of the fire box. -The respective kindlers comprise kindler pipes 23 and 23 respectively,

which are provided with jets 24: from which the fuel is arranged to be projected, the pipes being preferably positioned outwardly of the fire box. As here shown, the kindler pipes are positioned adjacent the wall 13, and in vertically superposed relation. The wall 13, it will now be noted, is perforated opposite the jets 241 to receive the latter, whereby gaseous fuel may be delivered from the kindler pipes to the fire box in a horizontal plane. By positioning the upper kindler pipe in the burner chamber 9 and the lower kindler pipe in the space 18, delivery of fuel from the pipes is arranged to be respectively effected in the upper portion of the solid fuel spaceof the fire box from the upper burner 22 and above and adjacent the grate 17 from the lower burner 21. In this manner, gaseous fuel is arranged to be independently delivered at two different levels in the solid fuel portion of the fire box, so that the ignition and combustion of such fuel by the use of the kindlers is insured. I

The upper burner 22, in addition to functioning as a kindler, is arranged to effect a heating of the top closure of the fire box, if and when desired, sufficient gas fuel being allowed to escape therefrom to insure a sufliciently high heating effect. The horizontal direction of the fuel discharge therefrom has been found to produce a more uniform heat ing of the closure and to insure a complete fuel combustion, and is therefore much preferred, such direction also being most efficient when the burner is used as a kindler. In this manner, the griddle plate 12, which as here shown comprises the fire box closure, may be heated by the combustion of solid fuel or gaseous fuel, or of both of said fuels simultaneously as may be desired, and the cooking space over the top gas burners of the stove is free for normal use thereof.

The rarious top gas burners, it will now be noted, are arranged to be supplied with gas from a manifold 26 extending across the stove in front of the chamber 9, such delivery of fuel being effected through a series of aligned cocks 27 positioned in the delivering pipes between the manifold and the different top gas-burners. The kindler burners 21 and 22are also arranged to be supplied from the manifold 26, the connecting means therefor respectively including pipes 28 and 29 and cocks 31 and 32, the latter preferably being similar to the cocks 27 and positioned in alignment therewith, it being noted that the best appearance of the row ofcocks is effected if and when such cocks are evenly spaced as is here shown. In this manner, the control of the kindler cocks is effected at the front of the stove, at a convenient height, and the various cocks are all located at one place on the stove. The pipe 28 extends directly forwardly from its burner to a point without the space 18 and then upwardly to its connection with the cock. As the pipe 23 in the present embodiment is horizontally aligned with the manifold, the pipe 29 merely extends forwardly from its burner to a connection with the cock 32, a suitable bend being however formed in the pipe 29 within the chamber since the cock 32 is disposed inwardly of the cock 31.

Since the kindler pipes and their connections extend into the chamber 9 and space 13 they would be somewhat visible from the front of the stove, while the drawer 19 must be spaced'from the wall 13 to thereby provide a gap between its front and the wall 13. Means are accordingly provided for closing such gap, such means comprising a casing member 33 extending from the front edge of the wall 13 to the side line of the drawer, it being noted that the kindler connection pipes extend through such casing. In this manner, the space 18 may be completely closed, and minimum portions of the kindler assemblies are visible.

The space defined behind the casing 33 is also here shown utilized as a place of concealment for the manifold supply pipe 3%, which pipe extends forwardly through such space and the casing 33 below the kindler burners and thence upwardly to a connection with the manifold 26.

The plate 13, as shown in Figure 3, is formed with a depression 35 which extends into the fire box preferably below the grate and in which the supply pipe is arranged to seat. With this arrangement the pipe may extend through the casing in close proximity to the doors of the the box so that the width of the casing may be reduced and the efiective width of the warming closet 18 increased accordingly.

leans ar provided for protecting the kindler jets from the direct application of fire thereto from within the fire box. As here shown, such means comprises the provision of a depending plate 36 preferably mounted on and in front of thestove lining member 3? opposite the jets of the lower burner, such lining member and plate being perforated opposite the jets. The lining is also perforated opposite the jets of the upper burner, the perforations thereof being provided with annular flanges 33 extending outwardly thereof. in this mann r, the pr r ible burning of the jets is prevented, the lini members only being required to withstand the direct application of heat thereto.

I claim:

1. in a stove provided with a cooking top, a. fire box and a top burner chamber unving said top, a griddle providing a top ire for said fire box, a kindlcr burner ar- .iged to project gaseous fuel horizontally into said fire box adjacent the top thereof whereby the combustion of said projected fuel may ignite any solid fuel in the box and rd griddle to a cooking temperature.

ply cocks operatively disposed between the different burners and said manifold.

2. In a stove, a fire box, a top gas burner compartment at one side of said fire box, a warming compartment under said burner compartment and contiguous with said fire box, a vertical partition separating said box and lower compartment and having a transversely extending depression projecting into said box and defining a groove in said warming compartment, a burner supply manifold extending horizontally across the front of said burner compartment, a casing at the front of said lower compartment, a gas supply pipe extending through said casing and the lower compartment from the back of the stove to the front thereof and lying in said groove, and a vertical extension of said supply pipe positioned in front of said casing and connecting said manifold and supply pipe.

3. In astove provided with a cookin top, atop burner chamber and a fire-box for solid fuel separated by a wall and underlying said top each arranged for the independent heating of the associated overlying cooking top portions, top gas burners in said chamber, a solid fuel supporting grate in said fire-box, and a burner extending along said wall arranged to project gaseous fuel transversely across said fire-box from a point adjacent said wall in the upper portion of the space above said grate.

l. In a stove provided with a cooking top, a top-gas burner chamber and a fire-box for solid fuel separated by a Wall and underlying said top each arranged for the independent heating of the associated overlying cooking top portions, top-gas burners in said chamber, a solid fuel supporting grate in said fire-box, a burner disposed horizontally along and adjacent the top of said wall outside of said fire-box, said last burners arranged to project gaseous fuel through said Wall and across said fire-box,

5. In a stove provided with a cooking top, a top-gas burner chamber and a fire-box for solid fuel separated by a wall and underlying said top each arranged for the independent heating of the associated overlying cooking v top portions, top-gas burners in said chamher, an upper and a lower burner disposed along said wall arranged to project gaseous fuel across said fire-box, a burner supply manifold extending along a side of said chamher, and rectilinearly related supply cocksfor said top gas burners operatively disposed between said manifold and the different burners, the cock for said upper burner being operatively aligned with said top-gas burner cocks.

In testimony whereof, I have hereunto set my hand at Oakland, California, this 12th day of July, 1926.

FREDERICK A. GERCICH.

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