US1535476A - Stove - Google Patents

Description

2 Sheets-Sheet 1 STOVE Filed July 16, 1923 B. KAHN April 28, 1925.

April 28',

B. B. KAHN STOVE Filed July 16, 1925 2 Sheets-Sheet 2 Patented Apr. 28, 1925.

UNITED STATES PATENT OFFICE.

BERTRAND B. KAHN, F CINCINNATI, OHIO, ASSIGNOR TO THE ESTATE STOVE COM} PANY, OF HAMILTON, OHIO, A CORPORATION OF OHIO.

STOVE.

Application filed July 16,

To all whom it may concern:

Be it known that I, Bnnrnann B. KAI-1N, a citizen of the United States of America, residing at Cincinnati, county of Hamilton, and State of Ohio, have invented certain new and useful Improvements in Stoves, of which the following is a full, clear, and exact description.

This invention relates to improvements in cooking stoves.

One of the principal objects of the invention is to provide a stove or range in which the oven is located above the stove top, which is so constructed that the fuel gases may be directed to more effectively and uniformly heat the oven, or, when such heating of the oven is not required, may be passed directly into the fine of the range.

Other objects and advantages of the invention will be apparent from the description thereof set out below when taken in connection with the accompanyingdrawing.

In the drawing in which like characters of reference designate like parts throughout the several views thereof;

Fig. 1 is a vertical cross sectional view through a stove or range constructed in accordance with this invention;

Fig. 2 is an elevational view of the stove looking from the right hand end of Fig. 1;

Fig. 3 is a fngmentary plan view showing the general arrangement of the damp ers;

F 4; is a view in the nature of a perspective, showing internal details. of construction; and

Fig. 5 is a plan view of the oven and certain associated parts.

The stove forming the subject of this invention, of which a preferred embodiment is shown in the drawing, is of that type which uses wood, coal, or the like as fuel. This stove, which is supported upon suitable legs 10, is provided with a fire box 11, at one side, beneath which is located an ash pit 12, a suitable grate13, shown conventionally, being associated with the fire box to support the fuel.

Located directly above the fire box is a cooking top 15, which is provided with the regulation cooking openings 16. Mounted upon an extension or continuation of the stove top, which extension or continuation is 1923. Serial No. 651,782.

designated by the numeral 17, is an oven 18, which is surrounded on three sides by spaced walls, to form a bottom fine 19, a vertical flue and a top fine 21. The wall which is spaced from the bottom 17 of the oven, to form the bottom flue 19 is designated by the numeral 22, and serves as the top wall of a compartment which may be used as a warming oven, or for any other desired purpose. Only one compartment 25 is shown, but of course the space occupied by this compartment can, if desired, be split up into any desired. number of compartments, or if desired a skeleton construction may be used.

Opening into the lower flue 19, to one side of the oven, and adjacent the opening of the fire box into the lower flue 19, is a flue opening 30, which opens directly into a fine connection 31. The upper fine 21 is provided with a flue opening 32, which is connected by means of the manifold 33 to the flue connection 31. Pivotally mounted within the oven structure with its lower end extended downwardly into the lower flue 19, is a rod 34 which carries on the lower end thereof a damper 35 positioned to control the flue opening 30. Also mounted upon this rod, adjacent its upper end is a second damper 36 which is positioned to control the upper flue opening 32. This rod 34 has a suitable operating handle 37, which is readily accessible, so that the positioning of the dampers may be varied at will. As shown, particularly in Figs. 3 and 4 these. dampers may be positioned to completely out off connection between the lower flue 19 and the flue connection, and at the same time. pro

vide wide open connection between the upper flue opening and the flue connection, or vice versa, or to give any intermediate degree of opening between the flue 19 and the flue 2.1 and the flue connection.

As shown the oven has a flue associated with its top, bottom and one end, or, in other words, is surrounded on three sides by a flue. The fourth side, or the other end, the side or end adjacent the cooking top, has no flue associated therewith, but is provided with a layer of heat insulating material 40, such as a sheet of asbestos. This end of the oven receives heat from the cooking top, and on account of this heat input, and the heat insulation, uniform heating of the oven is secured. This construction has the, quite important, added advantage that the length of the passage through which the products of combustion pass, when the oven is being used, is materially decreased.

As can be seen, from inspection of the drawing, the left hand end of the oven, which is nearest to the fire box, will be subjected to a greater heating effect than the other end. The greatest heat input is therefore adjacent the end of the oven which is provided with this layer of heat insulation 40. There is, consequently, a tendency for this endof the oven to become unduly heated,

with a, resulting lack of uniformity of temperature throughout the oven. In order to prevent this the lower wall of the oven is provided with a heat insulating cover 42 which covers substantially half of this lower wall, As a result a uniform temperature is secured throughout the oven.

The flue connection 31 is positioned at one side of the oven, and the flue opening 30 is so located with respect to the oven that when the dampers. are positioned to connect the lower fine 19 directly to the flue connection, the products of combustion will escape without heating the oven. Furthermore this is so located that it does not in any way inter fere with the heat transfer from the cooking top of the stove to the insulated end of the oven.

Preferably two dampers. are used, as de scribed above, but if desired the damper 36 associated with the flue opening 32 may be dispensed with without materially varying the effectiveness of operation of the stove.

In order to prevent short circuitingof the hot. gasesas they pass across the top of the oven, through the upper flue 21, a pivoted baflle. 45 is provided, which serves to deflect the hot gases. so that uniform contact with the top of the oven is secured.

Of course in a stove of this character, adapted to operate upon the conventional fuels, there will be deposits of soot, and the like, which should be removed from time to time to prevent their interfering with the eflicient operation of the stove. For this purpose a clean-out opening 48, which is closed bymeans of a suitable closure or cover plate 4.9, is provided. Access to the lower flue 19, for cleaning, can be readily secured through one of the openings 16, in the cooking top. The clean-out opening 48 is so positioned that by removing the plate 4-9, access maybe had to the upper flue 21, so that by proper manipulation of a suitable scraper any deposits therein may be caused to pass down through the flue 20 into the flue 19 where they can be readily removed. Also this clean-out opening 48 gives access to the flue 20 so that it can be properly cleaned.

The battle 15, as stated above, is pivoted so that during the clean-out operation it may be swung to lie against the back wall of the oven so that cleaning of the-flue 21 may be facilitated.

The clean-out plate &9 is preferably ol' the form shown in Fig.1, the handle 50 being connected to a latch 51, which upon proper manipulation of the handle may be swung into or out of position to lock the plate 49 in place.

While the form of apparatus herein described constitutes a preferred embodiment of the invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the scope of the invention which is defined in the appended claims.

Vhatis claimed is:

1. 11 range of the character described, for utilizing coal, wood, or the like, as fuel, comprising a fire box; an oven having a bottom flue communicating with the fire box, a, single end flue located at one slde of the oven, a top flue above the oven; the bottom flue having an opening therein connected directly with the flue connection, the top flue having an opening therein connected with the said flue connection; a damper associated with the first named flue opening and adapted for positioning to connect or disconnect the said bottom flue from the flue connection, the said bottom flue opening being so positioned that when the dan'iper is positioned to connect the bottom flue t the flue connection, the products of combustion from the fire box. will escape through the flue connection without heating the interior of the oven.

2. A range of the character described, for utilizing coal, wood, or the like, as fuel, comprising a flue connection, a fire box, a cooking top positioned thereover; an oven located upon a continuation or extension of the said cooking top, the bottom wall of the said oven being in substantially the same plane as the cooking top, a bottom flue associated with said oven and communicating with the said fire box, a single end flue associated with said oven and communicating with said bottom flue, a top flue associated with said oven and communicating with the one end flue; the bottom flue having an opening therein connecting that flue directly with the flue connection, the top flue having an opening therein connecting the top fine to the flue connection; and a damper associated with the first named flue opening, the flue connection, and the flue opening connecting the said flue connection to the bottom flue, being located to one side of the oven, the construction being such that when the. damper is positioned to connect the bottom flue directly to the flue connection, the hot products of combustion from the fire ,bOX will be diverted through the flue connection and will not come in contact with the walls associated with the oven.

3. A range of the character described, for utilizing coal, wood, or the like, as fuel, comprising a fire box, a cooking top thereover; an oven located upon a continuation or extension of said cooking top, a bottom flue associated with said oven and communicating at one end with the fire box, a single end flue associated with said oven and communicating with the bottom 'flue, a top flue associated with the oven and communicating with the one end flue; heat insulation associated with the end of the oven having no flue, the location of the oven being such that during operation of the stove the heat insulated end of the oven will receive heat from the cooking top of thestove; and a flue connection positioned at one side of and out of substantial heat transferring relation with the said oven, the top flue having an opening therein connecting the said top flue with the flue connection, and the bottom flue an opening therein directly connecting the said bottom flue to the flue connection.

4. A range of the character described, for utilizing coal, wood, or the like, as fuel, comprising a fire box; an oven having a bottom flue connected with one end of the fire box, a side flue connected to the other end of the bottom flue, a top flue connected to the side flue, said top flue having a flue opening adapted to connect the top flue to a flue connection, the said bottom flue also having a flue opening adapted to directly connect said bottom flue to the flue connection; and heat insulation on the end of the oven having no flue, and on that portion of the floor of the oven associated with the said end.

5. A range of the character described, for utilizing coal, wood, or the like, as fuel, comprising a fire box; an oven having a bottom flue connected with one end'of the fire box, a single side flue connected to the other end of the bottom flue, a top flue connected to the single side flue, said top flue having a flue opening adapted to connect the top flue to a flue connection, the said bottom flue also having a flue opening adapted to connect said bottom flue to the flue connection; and a swinging baffle plate in the top flue.

6. A range of the character described, for utilizing coal, wood, or the like, as fuel, comprising a fire box; an oven having a bottom flue connected with one end of the fire box, a single side flue connected to the other end of the bottom flue, a top flue connected to the single side flue, said top flue having a flue opening adapted to connect the top flue to a flue connection, the said bottom flue also having a flue opening adapted to connect said bottom flue to the flue connection; the walls of the said top flu and side flue being provided with a clean-outopening permitting access to each of the said flues, and a removable cover plate for said opening.

In testimony whereof I hereto aflix my signature.

BERT RAND B. KAHN.

Witnesses:

DORA TIEMEYER, ROY CoNovER.

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