US2164079A - Gaseous fuel stove - Google Patents

Description

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GAsEoL-Js FUEL sTovE Filed Jan. lO, 1936 2 Smets-Sheet l C.. Fi. PARKER cmsmous FUEL sTovE Filed Jan. lo, 193@ 2 shams-sheet 2 www Patented June 27, 1939 f 2,164,079.A J

PATENT orifice 2,164,079 i GAsEoUs FUEL sx1-ova Claude E. Parker, Chicago, Ill., assignor to Gas Products Corporation, a corporation of I1- linois Application January 10, 1936, Serial No. 58,463

9 Claims.

This invention relates to gaseous fuel stoves and has particular reference to cook stoves of the general type disclosed in my copending applications Serial No. 676,795, iiled .June 21, 1933, and

ii Serial No. 714,618, flied March 8, 1934.

rlhe general object of the present invention is to improve the operation of gaseous fuel stoves through the provision of baille means in association with the burner to produce the effectual taken in the plane oi line 2-2 of Fig. l.

Figs. 3 and 4 are vertical sections on line I-l and 4 4, respectively, of Fig. 2.

Fig. 5 is a perspective view oi a certain baille.

Flg.6 is a fragmental vertical section. illustrating a modification. a

My invention may be embodied in various forms of stoves, as, for example, a stove adapted only for broiling, a stove comprising a broiling compartment with an oven thereabove, as in application Serial No. 714,618, or a range having top burners and an oven, as wellas abroiling compartment. I have here chosen for illustration a range comprising a broiling compartment A, an oven B. and provision at the left of the oven and the broiling compartment for top burners and utility drawers. The walls of the range may be of any desired construction. Herein, I denntesrthe' right-hand side wall, 2 the rear wall, and 3 the left-hand wall of the broiling compartment and the oven. A partition l which may be of any ordinary or preferred construction dlvides the broiling compartment from the oven, said partition being herein shown as resting upon ledges 5 on thestove walls. 6 is the oven door, and i is the closure for the broiling compartment.

Below the partition l is a burner 8. While it may be ot any desired shape and size, I have herein shown a. horizontal burner ot oblong form spaced from the walls oi the broiling compartment. The downwardly directed port holes 9 of the burner may be of any preferred character.

l The burner is provided with the usual mixer I l and connecting mixer tube II.

consumption of gases and combustible products,-

Fig. 2 is a iragmental horizontal sectional view The space between the burner and the walls of the broiling compartment is substantially closed by means of an imperiorate baille plate H attached to said walls and extending in the horizontal plane of the burner. As shown in Fig. 3, l the front edge of the baie plate l i is above the doorway. As will be understood from the drawings, the baille plate Il has a central opening to accommodate the burner, the edges I2 of said plate which define the opening being bent upl0 wardly so as to extend relatively close to the outer perimeter of the burner, thus producing a narrow space I3 around the burner through which the products of combustion may pass upwardly.

` The space within the inner perimeter of the l5 burner is substantially closed by anvimperforate baille plate Il, the body of which lies in the same plane as the body of the baille plate Il. The baille plate I4 has upturned edges I5 which extend close to the burner so as to form a restricted pas- N sageway I6 for the products ot combustion. The baille plate I I may be supported in any desiredmanner, as, for example, by forming lugs l1 there-.-

on to extend across the burner and rest upon the adjacent edges of the baille plate Il. It will be ll understood from Figs. 2 and 3 that the baille plates il and Il provide a narrow slot Il of oblong formfor the passage of the products oi combustion.

The burner l may. be supported in any convenient manner, as. for example, by means of the gas supply pipe Il and a rod 2l extending through ears 2| on the burner, said rod resting upon the baille plate Il.

In use, the baule plates Il .and Il become intensely hot and, if desired, they may be made of sulcient thickness vso' as to absorb and hold, heat for a relatively long time.

Below the burner l is means to support food to be cooked. This means may be of any desired nature, as, for example, an imperiorate broiling or toasting plate 22. The food-supporting member may be mounted in any desired manner, as, for example, by means so connected to the closure 1 "and the walls o! the broiling compartment that the food-supporting member rises as the closure 'l is drawn upwardly and is lowered into properv relation to the burner I when the closure 'l is restored to normal position. Fig, 4 illustrates a portion of said raising and lowering means, but I claim no novelty therefor.

Ii' desired, a burner (not shown) may be located below the food-supporting member 22 for the purpose of heating said member and the food lying thereon.

Secondary air to support combustion is admitted through the lower portion of the broiling compartment in the usual or any desired marmer, the supply of secondary air being restricted, within practical limits, to the amount required to maintain proper operation of the burner or burners and to effect oxidation of smoke and vapors rising from the food being cooked.

In Figs. 2, 3 and 4, the mixer tube I0 is shown 1 as being straight, and the baille plate II as being bent upwardly at 23 to extend over the mixer tube and the mixer. In order that theburner with its mixer and mixer tube may be oo nvenlently installed and removed, if necessary, it

u is desirable to provide a little clearance between the portion 23 and the mixer and mixer tube. Save for this slight clearance, it will be seen that the smoke and vapors produced in the cooking of the food cannot pass the bailles I I and i4 without m passing through the flames springing from tne port holes 9, and consequently smoke and food vapors are completely burned. The products of combustion of the fuel and the smoke and vapors from the food pass upwardly through the narrow u spaces I3 and I5 between the highly heated burner and baffle plates II and I4, and emerge through the narrow slot I8 into the space between the baies Il and I4 and the partition 4. In operation, this space becomes filled with highly heated gases which iiow through the channels 23 in the side walls I and 3 to the upper portion (not shown) of the oven, and subsequently leave the oven through openings 24 leading to a channel 25 in the back wall 2 of the stove, and thence to the s flue 26.

As seen in Figs. 2 and 3, the baille plates II and I4 denne a central outlet Vpassage from the broiling compartment A, andthe fuel discharge ports of the burner are so arranged relative to said outlet passage that a zone of intense heat is formed directly below the passage, through which zone the gaseous products including the vapors arising from the food being cooked are compelled to pass. In theI present instance the burner flames project laterally in opposite directions directly belowthe outlet passage and across the entrances to the spaces I3 and I6 so that the gases are compelled to pass through the ames of the burner.

By the construction thus provided, the combustible particles are effectually consumed. Moreover. the bailleplates tend to reflect the heat of the burner downwardly toward the food support so as to produce a more effectual application of heat to the support. Due to the restricted character of theoutlet passage the escape of the gases from the broiling compartment is retarded thus prolonging the time during which the smoke and food distillates may be consumed.

After passing from the lower compartment the highly heated gases are received in the space between the baffles and the partition 4. By locating the outlet channels 23 adjacent the opposite side walls of the enclosure, the gases are compelled to pass laterally after impinging upon the partition thereby supplementing. the restricted outlet passage from the broiling compartment in retarding the flow of the gases through the enclosure.

For the purpose of obviating the possibility of vapors and smoke reaching the outlet IB without passing through the flames, the construction shown in Fig. 6 may be adapted. As there shown, the mixer tube II)b is curved downwardly so as to Il clear the baule plate il, the latter extending straight over to the burner so as to direct vapors and smoke so close to the flames that all smoke and vapors shall be subjected to the flames.

When baking is being done, the burner may, if desired, be shut off before baking has been completed and the baking finished with the heat derived from the hot burner and baiiles and the hot gases in the space between the baiiies and the partitions 4 and those in the ychannels 23 and the oven proper, since the upward ilow of air through l@ the spaces IB, I3 and I8 is so restricted that the hot gases do not escape rapidly by convection. The bales prevent cold air from rushing through the spaces I6, I3 and I8 and into the oven. Thus the present construction. is not only eilicient ln the l5 broiling and toasting of foods rapidly and without smoke or odors, but also improves the eiliciency of baking operations.

The construction herein shown may be modified in various respects without departing from the im spirit and scope of the invention as defined in the following claims. For the sake of brevity the term broiling is used in the claims to include toasting and similar cooking operations, it being understood that the plate 22 may be used for the @g broiling of steaks and chops or the frying of sliced bacon, hamburger meat, etc., or the toasting of bread.

I claim as my invention: y

1. In a cook stove. four vertical walls forming a@ a broiling compartment. a burner in said compartment having downwardly directed port holes, a food support b`elow the burner, an outer baffle plate extending across said compartment in the plane of the burner, from the said four walls of 35 the compartment to a position close to the burner, the outer edges of said outer baille plate being in contact with said four walls, and said baiile plate providing a restricted passage close to the burner, said burner being formed to extend around a 4o space, and a baiiie lying in said space in substantially the plane of the burner and extending close to the burner so as to provide a restricted passage between said baiile and the inner perimeter of the burner, the inner edges of said outer baiile 45 plate and the outer edges of said inner baille plate defining a relatively narrow slot for the passage of the products of combustion.

2. In a cook stove, four vertical walls forming a broiling compartment containing a burner 50 having downwardly directed port holes, a food support below the burner, an outer baffle plate extending across said compartment, the outer edges of said plate being in contact with said four walls, said plate having an opening the shape 55 of which corresponds generally to the outer form of the burner, the edges of said plate which deiine said opening being bent to lie close to the burner so as to provide a restricted passage close to the burner, said burner being formed to exal) tend around a space, and a baflle extending across said space and close to the burner so as to provide a restricted passage between said baiile and the inner perimeter of the burner.

3. In a cook stove,.four vertical Walls forming a g5, broiling compartment, a burner arranged horizontally within said compartment, said burner having downwardly directed port holes, a food support below thc burner, and means in conjunction with said walls to prevent food vapors and 7g products of combustion from passing up above the burner without passing close to the perimeter of the burner and through the flames issuing from said port holes.

4. A cook stove having a compartment and a m food support in the lower part of the compartment, partition means extending transversely of the compartment and providing a restricted passage therethrough, said partition means completely closing the compartment transversely thereof except for said passage, and a burner having fuel discharge orices for supporting llames projecting laterally across said restricted passage whereby the unburned gases and food vapors are compelled to pass through said flames before escaping from the space below the partition means, said burner coacting with the partition means to direct heat downwardly in the compartment toward said support for broiling and toasting purposes, said passage serving to restrict the escape of products of combustion and food distillates and thus prolong their stay in the region below the partition means.

5. In a cook stove, four vertical walls forming a broiling compartment. a burner arranged horizontally within said compartment, said burner having iiame orices positioned to support a downwardly and laterally support below the burner, and means forcing the products of combustion and matter'arising from the food being cooked to pass closely adjacent said burner and through the flames thereof before escaping from the compartment.

6. A gaseoue fuel stove comprising a walled enclosure having upright side walls and a top wall, a partition extending transversely of the enclosure in downwardly spaced relation to said top wall and defining below it a chamber having an outlet passage through the partition spaced inwardly from opposite side walls, and a burner having fuel discharge means for supporting flames projecting laterally beneath the partition and immediately adjacent said passage whereby to provide a zone of intense heat directly below said passage, said partition being operative to force the products oi' combustion to pass through said zone of intense heat in escaping from said chamber through said passage.

7. A cook stove comprising a broiling compartment having front and rear walls and opposite side Walls, said front wall having a normally closed doorway therein. a fqod support in the lower part of the compartment, partition means extending transversely of the compartment and providing a narrow outlet passage spaced indirected flame, a food wardly from opposite side walls of the compartment, said partition means engaging the front wall above said doorway and serving to close the compartment transversely thereof except for said passage so as to force the products of combustion and food vapors to pass from the compartment through said passage. and a burner operative to apply heat downwardly in the compartment toward said support, said burner having fuel discharge means positioned for supporting flames projecting laterally beneath the partition means and in the region immediately adjacent said passage so as to produce a zone of intense heat directly below the passage for the consumption of vapors and the like compelled by the partition means to escape through said passage.

8. A gaseous fuel stove comprising a walled enclosure having upright side walls and a top wall, a partition extending transversely of the enclosure and comprising a baille spaced a short distance below said top wall and providing a passage spaced inwardly from opposite sidewalls, said partition deilning above it a space having outlet openings adjacentv the opposite side walls and also defining below it a chamber communicating through said passage with said space, and a burner having fuel discharge means for supporting llames projecting laterally beneath the partition and immediately adjacent said passage whereby to maintain a zone of intense heat di rectly below said passage, said partition being operative to force the products of combustion to pass through said'zone of intense heat in escaping from the lower chamber through said passage.

9. A .gaseous fuel stove comprising a walled enclosure having upright side walls anda top wall, a partition extending transversely of the enclosure and comprising an outer baille plate spaced a short distance below said top wall and an inner baille plate coacting with the outer baille plate to dene a narrow passage spaced inwardly from said side walls, and a. burner having fuel discharge means for supporting llames projecting laterally beneath the partition and immediately adjacent said passage whereby to maintain a zone of intense heat directly below said passage, said partition being operative to force the products of combustion to pass through said) zone of intense heat in escaping through said passage.

CLAUDE E.. PARKER. w

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