US1879955A - Stove - Google Patents

Description

Sept. 27, 1932. A sMlTH 1,879,955

STOVE Filed March 13, 1951 I'NVENTOR ARTHUR SNH'TH RNEY Patented Sept. 27, 1932 UNITED stares rATE- T orrics ARTHUR SMITH, or roRT CHEST R, NEW YORK, ASSIGNOR To s. STERNAU & G0.,,I1\TG., or new YORK, n. Y., A ooRroRATIon on NEW YORK sTovn Application filed March 13, 1931. Serial No. 522,190.

This invention relates to stoves, and more particularly to stoves of the type which utilize an alcohol burner. I

A salient object of the invention is the provision of a stove which is adapted to burn solidor liquid hydrocarbon fuel, wherein combustion is efficiently consummated and effectively controlled.

Another object of the invention is to provide a burner unit which may be used with a series of interchangeable fuel containers.

A further object of the invention is the provision of a stove of this type which can be easily and inexpensively manufactured from readily available materials.

Other objects of the invention will in part be Obvious and will in part appear hereinafter.

The invention accordingly comprises the features of construction combination of elements, and arrangement of parts, which will be exemplified in the construction hereinafter set forth and the scope of the application of which will be indicatedin the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawing, in which:

Fig. 1 is a side elevation of a stove embodying features of the invention, a side wall thereof being broken away to more clearly illustrate the interior burner structure; and

Fig. 2'is a sectional view taken on line 22 of Fig. 1.

Referring more particularly to the drawing, wherein is depicted an illustrative embodiment of the present. invention, there is shown a stove having a body generally designated at 10. Such body comprises side walls 11 and 12, a rear wall 13, a front wall the greater portion of which is preferably in the form of a hinged door 14, a top wall 15 having therein one or more burner openings 16, and a bottom wall 17. Wall 17 is spaced upwardly'from the lower edges of side walls 11 and 12, to provide operating room for a movable fuel. container support which will be hereinafter described in detail. i

Encased within stove body 10, and disposed in fixed vertical relationship therewith, by

baffle.

means of supporting struts 18 and 19, is a burner unit generally designated 20.

This unitis of the type generally known as alcohol burners, and is adapted to cooperate with any open ended container of hydrocarbon fuel to effect combustion of the same without the use of any wick, mantel or similar contrivance. Burner unit 20 comprises a generally cylindrical shell 21 which is open at its bottom, and is partially closed at its top by an inwardly extending annular wall 22 which has therein a centrally disposed opening. Extending outwardly from the lower edge of shell 21 is a horizontally disposed annular seat 23, which is adapted to engage againstthe upper rims of a series of interchangeable fuel containers, and which is preferably made of adequate width to accommodate containers of varying dimensions.

Placed at regular intervals about the periphcry of shell 21 are air ports 24. Such air ports may be in the form of a single opening or any desired number thereof, four ports being illustrated in the embodiment shown in the drawing.

In order to adjust the effective area of these air ports or inlets, a suitable valve member 25 is slidably mounted on shell 21. Member 25 is provided with a series of perforations 26 which are adapted to be rotated into and out of registry with air inlets 24. To effect rotary movement of valve member '25, a manually operable handle 27 is pivotally fastened thereto as at 27 whereby reciprocation of such handle efiects' rotation of the valve member, as will be readily understood by an inspection of 1. Handle 27 projects forwardly through an accommodating notch 28 in door .14 to a point where it may be conveniently grasped.

Extending vertically throughthe opening in the top wall of shell 21, and closing the same, is a tubular member 29 which has the combined functions of a chimney and an air The lower portion of chimney 29 extends into shell 21 and somewhat beyond the lower edge thereof. The lower edge of. the chimney is provided with one or more openings or notches 30. The upper edge of chim- 1'3 to lock the same to the stove body.

ney 29 projects beyond shell 21 toward the burner opening 16.

A fuel container such as 31 is adapted to be placed in cooperative relationship with the above described burner unit, with its upper rim disposed in substantiallyair tight relationship with annular seat 23. Such container may be of any desired form, as for eX- ample, a can in which solidified alcohol is vended. This container, or can, is'readily which have diagonally disposed edges 34 which mer e into contiguous horizontally disposed. ec ges 35. Each of the legs 33 is adapted to work in an individual arc'shaped slot 36 in bottom wall 17. Beveled edges 34 are adapted to engage against and ride upon the end portions of each of such slots. The platform 32 is also provided with a'manually operable handle 37. As will be readily understood from an inspection of the drawing, movement of handle 37 toward the left, as shown in Fig. 1, will result in vertical displacement of the platform as beveled edges 34 ride upon the end portionsof'their cooperating slots 36. This rotative movement may be continued until horizontal portions 35 rest upon wall 17. The lower ends of legs 33 are preferably fastenedto a plate 38, which may be attached after the legs have been passed through slots 36. Such plate'lends rigidity to the platform structure, and serves Y In operation, door 14 is opened, whereby a fresh can of fuel may be seated upon support 32, when the same is in its lowermost position as illustrated inFig. .1. The fuel is then ignited. Clockwise rotation of the support will raise the fuel container into operative relationship with the burner unit, with its upper rim juxtaposed to annular seat 23. The container will be maintained in such position when the horizontal, leg portions 35 rest upon the slotted bottom wall 18. Incoming air will enter through ports 24, whence it will be deflected by the baflielikelower portion of chimney 29 downwardly into container 31, across the surface of the fuel and beneath the lower edge of chimney 29, whereby combustion will be effected. The heated products of combustion will pass upwardly through chimney 29,"and will serve to heat any utensil placed over burner opening 16. hen a fresh container is used, the upper surface of the fuel therein may so closely approach the lower edge of the chimney as to interfere with the passage of air therebeneath. In such case, openings 30 provide apassage for the circulating air. The degree of combustion may be controlled by manipulation, of valve member 25.

g It will be seen that there has been provided' a structure which-is adaptedto convenicntly-and efficiently utilize a number of separately vendable fuel containers, and which is admirably suited to perform its intended: functions. 7

While the improved burner has been described as cooperating with a specifically described stove body structure, it is clear. that such burner may be used with any suitable stove body, or may be used separately. Also while a stove accommodating only a single burner has been illustrated, it will be obvious that a stove employing a plurality of such units may be used.

Since certain changes may be made in carrying out the above method without departing from the scope of the invention, it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense. 7

It is also to be understood that the following claims areintended to cover all of the side wall with a series of air ports therein, a

horizontally disposed annular seat at the lower edge of said side wall, an open ended tube extending through said top and closing the same, the lower end of said tube extending a substantial distance into said shell, an annular slide valve for adjustably closing said ports, and an operating handle pivotally attached to said slide valve whereby reciprocationof said handle causes rotation of said valve. g V

2. A burner unit comprising, in combination, an open bottomed housing having an air inlet and an outlet, and a substantially horizontal wide annular seat forming a lower face of said housing, said seat being adapted to engage in substantially airtight relationship over the upper rim of any of a plurality of interchangeable fuel containers of varied dimensions.

3. A stove assembly, comprising, in combination, a stove body, a vertical chimney disposed in fixed vertical relationship with respect to said stove body, an open topped till fuel container of greater sectional area than said chimney, an adjustable support for said container, and means for elevating said support to bring the upper rim of said container above a lower edge of said chimney, the edges of said opening being outwardly spaced from the inserted portion of the chimney to provide an air entry into said container.

4. In a stove assembly, a support adapted to raise and lower a fuel container, comprising in combination, a rotatable platform, a plurality of beveled legs depending from said platform, and a fixed base on which the beveled portions of said legs are adapted to ride.

5. In a stove assembly, a support adapted to raise and lower a fuel container, comprising, in combination, a rotatable platform, a plurality of legs depending from said platform, each leg having a beveled portion and a substantially horizontal portion contiguous thereto, a fixed base plate having slots through which said legs pass, and means con necting the lower ends of said legs and holding the same rigidly in position.

In testimony whereof I affix my signature.

ARTHUR SMITH.

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