US2172769A - Portable stove - Google Patents

Description

Sept. 12, H LUEDTKE 2,172,769

PORTABLE STOVE Filed March 1, 1939 M FIG. I 42 FIG. .5

"IM im 1 1 LRHH f7 mvon Lou H. LUEDT (E ATTORNEY.

Patented Sept. 12, 1939 UNITED STATES PATENT OFFiCE Application March 1,

3 Claims.

This invention relates toimprovements in poi-t a-ble stoves,-by the word stove being meant a knock down construction which when not in use occupies relatively small space, but which is capable of being conveniently transported and of being readily set up at the place desired;

Advantages desired in a device of this kind are that it may be substantial and dependable, and may readily lend itself to the accommodation of a grill for any of various requirements; that it may be relatively light in weight and economical of manufacture, and that it may be conveniently used as camping outfit, and also as equipment in the shop, factory or household.

My improved table construction, consisting as it does, of a carrying case, and of unitary parts contained therein which are of form and structure to be easily removed, and then fitted and fastened together I have, in illustrating my infivention, pictured the several parts individually, and I have shown the invention asknocked down and in the status for being transported. Also, the invention is shown set up and in readiness for use.

The general objects of my invention, and also more specific aims thereof, as will presently appear, are accomplished by, and the invention is embodied in the new construction, combination and arrangement of parts illustrated in the accompanying drawing and described in the following specification. The several'parts of the invention are identified by suitable characters of reference applied to them in the different views in the drawing.

Figure 1 is a front View of my impioved'portable stove construction, as it appears in readi-' ness for use.

Figure 2 is a top plan View taken in the direction of arrow 2'in Figure 1.

arrow 3 in Figure 2.

Figure 4 is a sectional top plan view taken on" the line 3- 5 and in the direction of arrow 4 in' Figure 1.

Figure 5 is a side View of the carrying case, a portion of the side wall thereof being broken away; and which said casing, when the shell cap thereof is in transposed and inverted position as indicated in Figure l, constitutes a central column.

upon which the top portion of the frame construction is retained.

Figure 3 is a vertical central cross section view taken on the line 33, and in the direction of 1939, Serial No. 259,252

of the casing when the latter is in the position as in Figure 1. v

Figure 7 is a side View of the other one of said cross bars. I

Figure 8- is a top plan view of one of two op- 5 posed side rails.

Figure 9 is a top plan view of the other one of twoopposed side rails.

Figure 10 is a detached view of one of the post and strut assemblies.

I Figure 11 is a detached View of one of the tension rods.

Figure 12 is a perspective View of preferred formof arrangement of criss-cross members constituting a grill, intended for the accommoda- 15 tion of electric heating units.

An important feature of this invention being that the construction is knock d0wnthat is to say, the several parts are capable of being easily disassembled; and then placed in order wherein 0 they occupy relatively small space and may be retained in a carrying case, I will describe each of the parts in detail and as detached.

For a, table of twenty one inches in width, the hollow body structure which I designate as the 5 casing A maybe cylindrical in cross section, and about eight inches in diameter, This casing is closed at one end. At the rim portion of the open end ofsaid casing are spaced notches B A cap shell C which'may be made of sheet metal is re- 30 movably held in position closing the casing, as by set screwsD, In its position removed, it is made fastby thesame set screws D, to the closed end of the casing whereby itconstitutes a base structure (as shown in Figure 1) and to which certain parts 5 are connected, as will be presently point'ed'out. Embodied with said cap shell are four spaced brackets CI, and each having a radially directed socket El, andabove said socket is an eye F.

Cross bars G and H; as shown'in Figures 6 and 40 '7, are provided with central recesses'I and end recesses J respectively, whereby when they are in crossed position their top surfaces are at a commonplane. Shallow end recesses K are adapted to receive the side rails presently to be referred 45 to." Recesses L being engaged with the recesses B of the casing, these cross bars are suitably re tained-in their positions.

Opposed side rails of angle iron, are of right and left formation. Each rail M of one pair, has 50 at each end of its vertical leg, a threaded stud N and nut O; andnear the ends of the horizontal legs are the holes M and M. Each rail P of the other pair ofside rails has each end of its hori= zontal legcutaway, and at each-end of its vertical leg is provided a threaded stud Q and a nut R. A transverse shallow recess M2 and P2 centrally of the horizontal leg of each of the aforesaid rails constitutes a seating by which these rails are readily centered on the ends of the cross bars presently to be referred to.

Corner uprights, and which I designate as post and strut assemblies, are similar in construction and function. Each consists of an angle iron S of suitably light weight, each leg of which at its top is provided with a. hole T in which is to be received a stud of the aforesaid side rail. The function of another hole T provided in said post will be presently referred to. At S the post is twisted so that its lower portion is inclined at a right angle to the axis of the brackets Cl. Pivotally connected, as at UI to the bottom of the post, is a strut member which consists of an angle iron U. A portion of the free end of this angle iron is cut away thereby constituting the end portion as a shank or nose V and which is adapted to be inserted in and retained in the socket E of the said base bracket.

Each of similar tension members consists of a light divided rod, the sections W thereof being joined by a turnbuckle X, and the ends of said sections embodying hooks WI and W2.

My improved portable stove or table construction as received by the user is in the knocked down status, the several parts thereof being retained in their disassembled status, within the casing A as shown in Figure 5; the latter being closed by the cap shell C. The outfit in this status may be conveniently transported, and it occupies relatively small. space. Whereas the diameter of the casing A is shown as about eight inches in diameter, this dimension may be varied according to the sizes of the parts as they may be varied according to design.

Installing or setting up the stove for actual use, follows;

The cap shell is transferred from the position as in Figure 5, to the closed end of the casing,

and in which latter position it appears as in Figure 1, the set screws D having been tightened and the said shell now constituting a substantial base structure to which the several parts presently to be referred to are connected. After the' removing from the casing of all of the said parts, the casing is now disposed in upright position as in Figure 1. The cross bars G and H are now disposed in place in their dovetailed right-angle relation (see Figure 2), and at repose in the recesses B of the top of the casing, and the recesses L retaining them against dislodgement. Struts U and U of two of the post-strut assemblies, are 7 swung to right angle position and their shanks V are inserted into the sockets E and E of the cap shell, and there they are secured by the set screws El and El. The posts are then swung to upright position and are made fast to the ends of the side rail M by engaging the studs N and by being secured by the nuts 0. The same procedure then follows with the other two post strut assemblies.

Now the side rails M and. M are drawn toward each other, same being centered and spaced on the recesses K in the ends of the cross bar H. Side rails P and P are then placed in positions on the ends of cross bar G, the nuts R and R binding said rails to the tops of the posts. The sections W and W of the tension rods have their hook ends WI and W2 connected at the apertures M of the side rails M M and the eyes F of the base brackets, respectively. By operating affairs?) the turnbuckles X the side rails are drawn to tight engagement with the ends of the cross bars G and H, and the said cross bars in turn, are drawn to and are held in tenacious engagement with the top of the said casing. By the structure thus constituted, the frame in which the grill is to be retained is strong and substantial and it is provided with the solid central support which is very desirable. The structure thus formed is capable of being constituted of members which are of sheet steel pressed into form affording the desired formation in cross section, and whereby the structure complete is, while light in weight, strong and durable. Being free from cross connections between the body portions of the posts it affords foot room so much desired when working about a table structure of this kind. The construction as an entirety may be anchored by the use of bolts or pins at the holes U2 in the struts U. Or it may be fastened to the wall by use of screws or nails at the holes TI in the posts S. The frame lends itself to accommodating a deck plate or structure of any desired form; and especially of a grill constituted as shown in Figure 12, and consisting of light steel members T shaped in cross section, dovetailed and so interconnected that when disposed in place they are automatically retained, and wherein suitable gaps for the reception and use of electric heating units or the like, are provided.

Whereas the features of construction, in general and in detail, are those which I consider preferable for carrying my invention into effect, I wish it to be understood that minor changes and modifications may be made without departing from the spirit or principle of my invention, and that the invention shall be construed as of the full scope as defined in the appended claims.

What I claim as my invention, is

1. A portable stove construction consisting of a hollow casing closed at one end, a cap shell adapted to constitute a closure for the open end, and which is removable and is adapted to be transferred to and made fast at the closed end of said casing to constitute a base structure thereat, cross bars carried by and which extend beyond the sides of the top end of the casing, parts combined with the said base structure and the said cross bars to constitute a deck retainer, the said parts being demountably interrelated and being adapted to be disassembled and contained within the said casing.

2. A portable structure of the kind described, comprising a hollow casing closed at one end, a cap shell adapted to constitute a closure for the open end, and which is removable and is adapted to be transferred to and made fast at the closed end of said casing to constitute a base structure thereat, diametric interengaged cross bars carried by and which extend beyond the sides of the top end of the said casing, side rails arranged in rectangular formation and supported by said cross bars in predetermined position, and tension members interconnecting the side-rails and the said base structure, to draw the said side rails, the said cross bars, and the said casing, into united relation.

3. A portable structure of the kind described, comprising a hollow casing closed at one end, a cap shell adapted to constitute a closure for the open end and which is transferable to and is adapted to be made fast at the closed end of said casing to constitute a base structure therefor, cross, bars carried by and which extend beyond the sides of the top or open end of said and the said base structure, and means to adjust casing, side rails to rest on the ends of the said cross bars, post members extending downwardly from the ends of said side rails, struts extending from the bottoms of said post members and to interlocked engagement with the said base structure, tension rods interconnecting the side rails said rods whereby upon tightening same, the side rails, cross bars and easing are drawn to and are held securely in united relation.

LOU H. LUEDTKE.

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