US2119799A - Collapsible stove - Google Patents

Description

June 7, 1938. w. F. SIVEY COLLAPSIBLE STOVE Filed April 15. 1937 2 Sheets-Sheet l INV EN TOR. W E Siva P Q,

A TTO RNEY June 7, 1938. w. F. SlVEY COLLAPSIBLE STOVE Filed April 15, 1937 2 Sheets-Sheet 2 Fig.5

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INVENTOR V W I. Sivey ATTORNEY Patented June 7, 1938 UNITED STATES PATENT OFFICE 2,119,799 I COLLAPSIBLE STOVE William F. Sivey, Tecumseh, Nebr. Application April 15, 1937, Serial No. 137,060

My present invention-relates to portable stoves which are adapted for use in camping, the primary object being the provision of a portable stove in which the fire hazard is completely eliminated.

Another object of the invention is the provision of a stove which may be completely assembled or disassembled, the assembled stove having the various parts interfltting so tightly that no leakage of flame or of sparks is possible.

Another of my objects is the provision of a portable stove of assembled construction so that no undesired drafts may occur in the stove.

Another object which I have in view is the provision of a stove which may be collapsed into the minimum of space, the stove being self contained with the top and bottom enclosing all other parts of the stove.

Another of my objects is the provision of a collapsible stove having attached legs of novel construction, the legs being insertible into the flue which is adapted to be placed with the other parts of the stove in the space enclosed between the top and bottom of the stove.

Having in view these objects and others which will be pointed out in the following description, I will now refer to the drawings, in which Figure 1 is a view in isometric projection of the stove in collapsed form and ready for transportation or storage.

Figure 2 is a view in isometric projection-showing all of the parts of the stove in the semiassembled relationship.

Figure 3 is a view of the stove in median vertical section.

Figure 4 is a view of the stove partly in plan and partly in horizontal section with parts of the stove broken away.

Figure 5 is a view in section on the line 5-5 of Figure 3.

Figure 6 is a view in front elevation of my draft regulating slides.

The bottom ill with an upstanding flange ll forms a rectangular tray which is open at the top only. The top l2 with a depending flange has the same length and breadth as the bottom Ill. The bottom 10 and the top l2 are adapted to be positioned as shown in Figure 1 to constitute a container in the form of a suitcase but enclosing all other parts of the stove as well as the poker and other accessories of the stove. The available space within the container is not only suflicient for holding the stove parts and accessories but to hold the oven, of which the details are described in my co-pending ap- 'plication for Collapsible oven, Serial Number lies in the plane of the rear flanges I! with the offset edges l9 overlapping the flanges H. The front do'or frame 20 has similar offset flanges 2i, 15 having the same relation to the forward flanges II as the offset edges l9 have to the rear flanges I l. The upper edge portions of the rear end and side walls and the front door frame seat in identical manner against the inner surfaces of the 20 flanges l3.

For clamping the side and end walls to the top and bottom I provide straps 22 on all of these parts, the straps being vertical and spot welded or otherwise secured to the respective 25 parts. The end portions of these straps are offset a distance substantially equal to the thickness of the flanges II and I3. Owing to the resilience and binding action of these straps on the flanges, the parts are firmly but releasably 30 secured together leaving no open spaces for the leakage of air and flame.

As thus far described the device is a collapsible box which may function as a container or receptable for any desired purpose. For my. pur- 35 poses the top, bottom and front are modified to adapt the box for use as a stove. The door 23 is hinged at 24 to one of the straps 22 of the door frame 20. In its closed position the door 23 is in the plane of the two straps 22 of the 4 door frame 20 with its upper and lower edge portions pressed against the body of the door frame. The door is also provided with a spring pressed latch 25 having a detachable handle 26.

For the control of the draft, the forward flange 45 II is provided with two apertures having slide closures 28 for either closing the apertures entirely or for partially or wholly opening the apertures for the perfect control of the inflow of air. The inlet air passages extend through the door frame 20, the door frame being provided with apertures, not shown, registering with the apertures of the flange II. The top l2 in its rear portion has a screw threaded aperture I for receiving a detachable collar 29 which con- 6 30. The length of the flue will depend to a large extent on the particular use. When the stove is used in a tent or cabin, the flue may be extended to and through a hole in the roof. If the stove is too low for convenience or if the soil is covered with inflammable material, the stove must be elevated and for this purpose I provide four angle iron legs II. Secured to the flanges II and II at the corners thereof are straps 32 which are spaced intermediate their ends from the flanges. or out of the passageways between the straps 32 and the flanges, thus making simple the assembly or disassembly. Pins 33 limit the sliding movement of the legs to thus maintain the stove at a fixed height. Chains connecting the pins to the legs prevent the misplacement and loss of the pins. Each leg is provided with a plurality of apertures for receiving the pins both for positioning the stove at a most convenient height and for leveling the stove when the camp site is on uneven ground surface.

My stove is made portable for convenience in transportation and use. Although portability is essential, as before stated my primary object is to provide a stove which has no fire hazard. It is true that the ordinary kitchen stove or range can be used in camp with little of no danger of starting forest or prairie fires. Such stoves are, however, not portable and they are therefore useless for tourists and especially for tourists who frequently make and break camp. Even despite the serious drawbacks, such stoves are sometimes used on dude ranches, the heavy cast iron stove being laboriously transported to the camp site. My stove not only eliminates the serious difiiculty of transportation but it is equally effective for confining the fire within the stove. This is of The angle iron legs 3| are slidable into 2,119,799 ducts the products of combustion through a 'flue I great importance especially in forest camps and more particularly in those camp sites in which the soil is covered by a heavy layer of moldy vegetable material. Such material when dry or nearly so, will sometimes hold the spark for several days at a time and then result in a disastrous forest fire. Generally the only fire extinguishers available in camps are sand and water, but both of these are often of insufficient quantity to make certain that the danger has been entirely eliminated. Sand and water are moreover rather ineffective in a moldy soil covering which permits the almost indefinite flowing of a spark until suddenly the fire develops in serious proportion.

Having thus described my invention in such full, clear, and exact terms that its construction and utility will be readily understood by others skilledin the art to which it pertains, what I claim as new and desire to secure by Letters Patent of the United States is:

A collapsible stove having tray like top and bottom with opposing flanges, side walls having lateral inturned flanges and adapted to seat against the opposing flanges of said top and bottom, a rear wall and a front door frame each having offset side portions overlappping the lateral flanges of said side walls with the major portions of the upper and lower edges of said rear wall and front door frame seated against the inner surfaces of the flanges of said top and bottom, and resilient straps vertically secured to said side walls and said rear walls and said front door frame, the upper and lower portions of said straps being outwardly offset whereby the flanges of said top and bottom are releasably clamped between said straps and said side walls and said rear wall and said front door frame.

WILLIAM F. SIVEY.

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