US2384272A - Portable stove - Google Patents

Description

Sept. 4, 1945.

w. E. BAXTER PORTABLE STOVE Filed Aug. 22, 1940 3 Sheets-Sheet 1 W. E. BAXTER PORTABLE STOVE Sept. 4, 1945.

Filed Aug. 22, 1940 3 Sheets-Sheet 2 w. E. BAXTER ,PORTABLEQ STOVE Sept. 4,1945.

Filed Aug. 22, 1940 3 Sheets-Sheet 3 iil! Patented Sept. 4, 1945 UNITED STATES PATENT OFFICE PORTABLE STOVE William Edwards Baxter, Floyd County, Ind.; Bruce L. Baxter administrator of said William Edwards Baxter, deceased; said administrator assignor to himself individually Application August 22, 1940, Serial No. 353,702

14 Claims.

My present invention relates generally to portable stoves and more particularly to a stove of this nature, in this instance being a portable stove complete in detail in all the parts and combinations thereof for the purposes set forth, capable of effective. service under various conditions. The present invention is a continuationin-part of application Serial No. 203,833 filed April 23, 1938, for Portable stoves, which became abandoned September 1, 1940.

An object of my present improvement is to provide a portable stove that will be more eificient and serviceable and will give tourists, campers and out door health seekers the benefit of cooking and baking facilities in the open, or on rainy or cold days and nights, in tents or various other covers. This stove and its accessories will give warmth and comfort. A hat full of chips, twigs or small Wood faggots, always at hand, when used in this stove will be suflicient fuel for cooking a meal for several persons. One large piece of wood when placed in this stoves fire box, with its draft damper closed, will keep fire overnight, and a tent warm and dry thru the assistance of the stoves accessory appurtenance-a brace-U tube, as hereinafter described.

A further object is to provide a portable stove with compartment doors, both having like serviceable features, void of clumsy hinges and latches, stove doors that stay closed until opened. Another object is to provide a portable stove in whose fire-box compartment may be stored the demountable draft extension parts, charcoal, dry wood, etc, and in whose oven is carried the combined reservoir-duffle carrier in which is packed nesting cooking and serving utensils, making only one package to be stored, carried by hand, vehicle,

or checked as baggage.

A still further object is to provide an improved portable stove of the character described, having frames made from band-iron into rectangular form, each frame of itself permanently but pivotally attached to, and specially adapted to be folded about the body of the stove, to protect same when stored or during transportation, and t form supporting means for the stove when erected. and one of extreme rigidity in connection with its able accessory devices, the combined brace-protection plate-frame strutting brace plate and stove top protection cover.

A still further object is the provision of a stove of the character described which may be economically constructed, and in which such parts as are liable to deterioration may be easily and quickly replaced, notably the division reinforce-' ment-plate which protects the main division plate, and in connection therewith houses the combined brace-U tube part.

I provide a portable stove having in place of a hand regulating. oven damper, a fixed, draft equalizing baffle-plate. I I provide a portable stove void of unnecessary stove-lids and ash pan;

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts illustrated in the accompanying drawings forming a part of the specification, and wherein:

Figure l is a perspective view of my portable stove folded up and formed into a compact unit;

Figure 2 is a bottom plan view of the stove showing the upper longitudinal extensions of the stoves two frame members each pivotally, and permanently, attached to the stoves bottom plate;

Figure 3 is a perspective view of the portable stove shown in assembled position;

Figure 4 is a vertical longitudinal section of the stove assembled;

Figure 5 is a transverse vertical section taken along line 55 of Fig. 4;

Figure 6 is a vertical section taken along line 6-6 of Fig, 5;

Figure '7 is a transverse vertical section thru the center of the oven compartment and the oven along line l-'l of Fig. 4;

Figure 8 is a side elevational View of the draft extension parts partly broken away to show mounting means;

Figure 9 is a top plan view of the draft extension parts top plate;

Figure 10 is a perspective view of the mounting means for the cooking utensil duflle carrier;

Figure 11 is a sectional view showing the bolt nut's position within the cooking utensil duflie carrier and the bolt shank and head in position for alignment with the stoves keyhole slot;

Figure 12 is a vertical longitudinal section thru the keyhole slot and its cap plate;

Figure 13 is a perspective view showing the spring-wire pin and the raised half cylinders, from the stoves front plate for receiving the spring-wire pin;

Figure 14 is a perspective view of the stove door, and slot alignment, catch;

Figure 15 is an enlarged view of the interlocking means of the stoves frame members;

Figure 16 is a vertical section taken along the line Iii-l6, of Fig. 15;

Figure 1'? is a side elevation view of combined brace-U tube;

the stove shooked support for receiving the ovens connectin flange.

Referring to the drawings, Figs. 1,2,. 3 and 4, show an outer casing (measuring approximately 10 x 17 x 21 inches, as an example) formed of hold, when open, the upper edge of the indexfinger like part 8 slightly above a level alignment with its receiving slot 5. By hand pressure against the stove door 8, the door part 8* enters the slot 6 and the notch 8 by combined action of the parts 6, 8 and the spring-wire pin 6 snaps upward and inwardly into an interlocked engagement with the upper border of the slot 6, see Figs. 14 and 3. With the hand applied to the stove door ring 8 a downward and outward pull (which with intention makes the stove firmer in contact with its ground bearing) is necessary to disengage the notch 8 from its locked contact with the slot 6.

sheet metal, which casing in part comprises one.

piece of sheet metal forming the bottom plate I which, in being formed upwards, at right angles, a relative distance from its transverse center, is made to form the end walls 2 and 3, which end walls at their upward extremities are formed inwardly, see Fig. 4, at right angles to form seats 2 and 3*, upon which the top-plate 4, consisting of one piece of sheet metal is seated and securely fastened thereto by suitable means. The back plate 5, Fig. 7, is formed of one piece having, on its four sides, flanges 5 formed inwardly at right angles and made to snugly enter and to close the rear aperture f the stove casing and fastened thereto by suitable means. The back plate has two special perforations 5*, Fig. 5, and an edge sunken perforation 5, Fig. '7, aside from the three countersunk perforations, see 5 Fig. 5, for reception of bolts, which in conjunction with like bolts, see Figs: 2, 3 and 4, for securing the division plate l0 'tothe inside of the stove casing.

The casings front plate 6, see Figs. 1 and 3, is similarly formed with flanges which, in a' like manner, enter the front aperture of the stove casing and are fastened thereto by suitable means.

The front late 6, besides the three countersunk perforations to receive the division plate bolts, has a square opening 6 Fig. 13, as an eratrance to the fire-box compartment 1, Fig. 4; and also has draft openings 6 Figs. land 3, under the square opening, which are partially or fully closed by the sliding damper, shown therewith. To the left of the square opening 6 Fig. 13, are two, end-slitted and raised parts 6, as formed outward from the surface of the front plate 6, each having a curvature of sufficient height, as rising from the front-plates surface (to correspond with depressions made in the front plate above, below and between the raised parts 6) to take a small spring-wire pin 6 and thereby in connection with the stoves one piece door 8, seeFig. 3, having fingers 8 which are cylindrically formed toreceive the spring-wire pin as in connection with the front plates raised parts 6 which, in aligned connection, pivots the saiddoor, for co-operation with the stovecasing front plate The front plate 6 has, leading into the stoves oven compartment 9, an opening 6, Fig, 22, which is much larger than the fire-box compartment opening 6*; the said openings are closed by like doors having pivotal connections and fastenings alike in connection with the front plate of the stove; the edge metal of the opening 6, Figs. '7 and 22, is shown depressed or countersunk sufficiently to form a seat 6 having in its upper, right hand edge a notch 6*, Fig. 22.

The stove casing is divided into a fire-box compartment 1 and an oven compartment 9, by a main division plate l0, Fig. 5 (also see Figs. 4 and 6), removably fastened to th stove casing and dividing the casing into two unequal in size compartments best to suit the purposes.

The division plate I0 is made of a thicker gage metal than the other plates and has its four outer edges formed, at right angles to the said plate,

" looking toward the oven compartment; the angle parts having, near the angle bends, bolt holes, see Figs. 3, '4, 5 and 6, to correspond with like bolt holes 3 Fig. 5, in the stoves casing for removably holding the division plate as within the stove casing. The division plate has a sufficient number of openings Ill made in its upper surface for the products of combustion to pass thru to the oven compartment 9.

A division reinforcement-plate ll, Fig. 5 (forming a pocket or air-chamber i H, in connection with the division plate is shown in Figs. 4., 5 and 6), made and adapted to protect and preserve the division plate intact at the point where from practical use, it was found finally to suc- 6 and slot 6 as a valuable feature of this stove.

The fire-box door 8"is formedifro'm one piece of sheet metal and has protruding from its flat, right, central edge, see Fig. 14, a flat indexfinger joint like part 8 having a notch 8' in its upper edge, the part 8 is bent inwardly, at a right angle, from'the door body. The front plate 6 has'a slot G in itsface to receive the door part 8 The stovedoor 8, thru its cylindrically formed parts 8 and the special springwire pin alignment therein, and under the front plates raised and outwardly'curved parts 6, so

cumb to the fuel flames. Extendin outward from three sides of the oval face of the division reinforcement plate is a limited fiat surface thereof which is secured by bolts ll to the division plate It). The reinforcing plates rear edge I I is formed outwardly at right angles,.as shown along line 5-5, Fig. 4, to flatly contact in part, the inner surface of the stoves back plate 5, which meeting surfaces mentioned are held in contact by the two cap plugs I2 Fig. 5, of the stoves combined brace-U tube I 2; Without this means the stoves rear flre-box wall, a part of back plate 5, would, in time by fire influence, bulge outward,

When, by excessive use the division reinforcement plate H burns thru, it can be unbolted, removed and replaced by a new one, thus preserving the division plate Ill.

A double bearing influence in the stoves efficiency is its combined brace-U perforated tube; the latter combining to hold and to distribute heat and thereby to conserve fuel; also is shown its stove plates bracing effectiveness in combination with the tubes flat-bar 12 as shown along line fi fi'Fig. 5, which is welded or brazed to the U tube rearwardly bearing two arms, see Fig. 17,

and at a right angle thereto, so that the flat-bar will lie fiat against the fire-box surface of the division-plate I0, see Figs. 4, '5 and 6, and extend downward and upward, terminating in flanges IZRFig. 6, the lower flange bolted I2 to the stoves bottom plate I, Fig. 2, and the upper flange bolted I2 to the stoves top plate 4, Fig. 3, which arrangement in connection with the brace-U tube rigidity prevents the stoves top plate from sagging at a point first in evidence from much use over flame; and in combination, while independent of the division plate, strengthens and prolongs the life of the division plate I in true alignment. The brace-U tube fits snugly into the pocket II, formed as between and by the mentioned alignment of the division plate I0 and its reinforcement plate I I. The arms of the brace-U tube extend rearwardly from its bend; the arms have two intervening brace I2 made of the same tube material, all U tube parts connecting for the trapping and holdingof heat that would escape as thru the stoves draft extension parts, thereby also causing a loss in extra time necessary to collect, handle and consume extra fuel to cover any unnecessary loss of heat aforesaid mentioned. The brace-U tube thru its two arms I2 extends outward thru openings in the stove casing back plate 5, Fig. 5, only far enough to take on washer IZ Fig. 17. The inside surface of the brace-U tubes open ends are threaded to take the cap-plugs I2 Figs. 5 and 1'7, each having a one-eighth-inch vent h'ole thru its center for the escape of a limited amount of heat from the brace-U tube. The positive bearings of the cap-plugs I2 andlth'e washers I2 against the contiguous outer surfaces of the stove casing back plate 5, aided by the support of the flat-bar I 2 the latter being bolted to the stove casing, and welded to and forming a member part of the brace-U tube, holds the casing back plate 5 in line against reinforcement plate flange I I and the brace-U tube in rigidity as aflixed, all aiding the portable stoves efficiency and durability. The cap-plugs I2 protrusion beyond the surfaceof the casing back plate 5 is very slight.

The stoves oven I3, Figs. 4, 7 and 22', has a strip of metal I3 of the proper width and length and gage, formed to contact by two-thirds of its width, and to be permanently fastened to, the upper right hand top ledge of the oven I3; the remaining free edge I3 of the metal strip I3 is formed to curve over and downward throughout the ovens full length (see Fig. 7) and adapted to interlock with the hook part I4 Fig. 4, of the bafileplate I4 in its full length fore and aft; the bafileplate in its permanent attachment to the stove casing is secured thereto by its flange-part I4 being by suitable means spot welded or riveted, to the inner face of the stove casing top-plate 4, Fig. 4, adjacent to the stove casing draft opening I5, Fig. l. The end of the oven I3 fits neatly the opening b of the stove casing front plate 6, Fig. 22, as it is introduced therein which introduction is assisted by the operator's eye in seeing the receptive front of the bafile-plates hook-part W as seen commencing just behind the notch 6 Fig. 22, as made for that purpose in the countersunk seat part I5 of the opening S in the front plate 6. The rear free edge of the metal strip I 3 readily engages the hook part I 4 of the baflle-plate I4 and as the oven is pushed backward the mentioned interlocked portions, of the baffle plate and the metal strip I3 hold the oven in true alignment, and the inwardly countersunk hole I3 in the center of the ovens back plate, slides over the receiving bolt I3 which bolt relatively passes thru an opening 5 in the casings back plate 5, Fig. 7, the bolt being held thereto by a nut I3 and a supplementary nut I3 Figs. 4 and '7, as applied to the bolt, holds the oven securely in place with the flanges I3 Fig. 7, of the oven mouth contacting against the seats 6 with a part of the flange I3 then covering the slot 6 to prevent the escape of any of the products of combustion; thus is provided an oven compartment {having a passageway, equally spaced as between the walls of the oven compartment and the oven I3, with a fixed baffle-plate, and its hook-up connection, directing the air products of combustion backward, downward and fully around the oven, except at its uppe right hand corner where the baflie-plate I4 has openings I4, Fig. 7, of a sufficient-size for drawing a limited amount of heat thereto and thru said openings at what otherwise would bethe ovens coldest part, the interlocking bafile-plate I4 thus performing a triple service, needing no hand manipulation.

In my former U. S, patents covering improvements in portable stoves an opening was made in the stoves top plate for passage of the products of combustion to be drawn thereto by a draft producing extension part.

In order to have this stoves top plate free of obstruction, for full cooking service, I make a limited opening I5, Fig. 1, having a notch I5 in its lower border, in thestove casing and plate 3 for the reception of a removable, draft-extension part I6 made of sheet metal, and comparatively of small size, see Figs. 3, 4 and 8, and having a mouth, and lips Hi to fit into and automatically lock within the opening I 5 and notch I5 contacting edges. The draft extension part I6 has a top-plate I6, Fig. 9, having an opening I6 which has two notches IIi extending therefrom, and an L shaped lug I6 riveted to the center of the top' plates upper lip surface I6 Figs. 8 and 9, in a position for the upturned plane of the said lug to contact the inside upper wall of the opening I5, see Fig. 8.

I provide a lug, see Fig. 20, which has shoulders I6, a neck, and a head IB see Fig. 8, which lug is riveted to the outside center of the lower lip, of the draft extension part I6, being in situ opposite the lug I6 riveted on the upper lip of part I6, but specially aligned to connect with the notch I5 of the stove casing end plate 3, opening I5.

In connecting the draft extension part I6 to the stove casing end plate 3, the said part I6 is first tilted to permit the upturned plane of the L lug I6 to enter the opening I5 and to be seated against the inside contiguous surface of the stove casing end plate 3. As the other lips of the draft extension part I6 pass into the opening Hill, a slight hand pressure will cause the neck of the lug, as between its head I6 and shoulders I6, to snap into an interlocked relation with the notch I5 of the opening I5, see Fig. 8. The flat, contacting surfaces of the lugs shoulders with the stove casing end plate '3 prevents any rocking motion of the draft extension part I6. 1

The upturned face of the L lug I6 see Fig. 8, prevents the upper aspect of the draft extension part I6 from tilting outward, and the cylindrical draft extension part I! in situ, Fig. 8, prevents any sliding further inward of the draft extension part I6.

'The draft extension part I! (see Fig. 19, also Figs; 8, 4 and 3), is of a limited size, length and weight for the purpose of perfect draught, 'and being readily mounted, or dismounted fonflatly packing-within. the-stove, and is: blanked-out of sheet metal, asoffonepiece, so blanked that its fcaturestare readilyrshop-i'ormed; as of itself, and in. cylindricallform, as-.shown;in-Fig;,l9, for con.- nectionwith'theyopening I6 in thetop- I6, Figs; 8 andzll. The partl'l, Fig. 19', is. provided along its approximately right edge with an out-turned hooking flange Il which. is adapted to be received' in a clasping manner'by a similar intumedrhooking'flangerl'l 'onz its left edge for conmeeting the said edges. From thetopmargin of the. draft extension part-A1 toa-rlimitedsdistance down: itsapproximating rightredge; a, strip-of: its metal. is cutaway and-the remainingstrip, arshort distance above the rightedge of the-hooked flange lzl is--bent: over to standzout at right angles from its. base to form a lug IT. From the left top margin: of. the part ITJto a limited distance down its approximating flange edge a strip of its metal is' cut awayand a slot ll to receive the right angle lug I'T, is..made' initsremaining'edge above its in-turned hooking flange, so when thetsaid hooking flanges ll and I! are clasped in interlocking. alignmentithe right and leftrvertical edges above the flanges meet when the lug l'l' automaticallyslips andseats into the slot I l and thus prevents the upper reaches of the clasped alignment' [l and" I'll from-being disengaged. From the bottom margin of thepart- I1, on its right-edge and-upwards, a" slight strip of metal? is cut away, another slit is: made, thesame in width as the flange Hegr'which slit metal.extendingupwards is bent. outward; at: right: angle; toform the flange H From'the bottom. margin of the part ll, onv its left edge: below the flange W a slit, the width .of its in-turned'flange, ismade. upward and the said width of metal; is turned upon itself' then outward at a right angle to form a lug I1 the vertical edge of the metal, as depending'below H inclines inwardly so that when the hooking flanges H and I! are-in engagement; the inwardly inclined vertical edge, below the lug l1, contacts the vertical'metal edge below the flange ll", thus keeping the lower aspect of the hooking flanges Il and ll from becoming disengaged, and leaving a space, of'a metal thickness (for the edge of It, Fig; 9) as-between the flat flange I'l and the lug H; see Figs: 19, 8 and 3 Apair of lugs H same as'one'shownin Fig..20, are relatively attached to the draft extension part IT", as shown in Figs. 19,- Band 3, and are adapted to operate in the notches l6; Figs. 8 and 9; the same manner as heretofore mentioned in describing. the interlocking of the draft extension part it? with the opening I and its notch lfie, in the-stove casingand plate 3.

When the draft-extension part I! is formed by the hand. into its cylindrical aspect and the hooked flanges Il and I! are interlocked, the flange W is relatively introduced into the'opening Hi of the toppart [6. Fig. 9, so to contact the inner face'of the top plate I6, adjacent the opening [6 a shown in Fig: 8; the lug I! at the same time contacts and is seated on that part of the top plate [6 which intervenes as coming'between the flange [7 and the lug H The heads of: the two lugs ll' then being in position to enter the notches l6 of the opening IB are made to do so and a further push automatically seats, and interlocks their necksas clasped by'the metal margins of the notches [6; the level surfaces of the hori'zontalshoulders 0f the lugs' H contacting the contiguous flat surface of the'top plate [6 of the draft extension part [6; thus prevents. any rocking of the draft extension part l'l.- While the, lug, Fig. 20, is shown inthesdrawings as formedseparately; and applied tothe draft extension part: IS, the said-'lu can be-made as a part of the sheet metal comprising the draft extension part' l6, by a special forming die made for the purpose; and likewise the two lugs ll of the draft extension part IT, can be relatively stamped onand as a part of the one piece metal part [1, by'the same special die after the one sheetpiece isblanked and ready for shaping into active form.

When it is desired to carry the'air products of combustion further away from this stove, when erected; for use, a section or more of ordinary 4 inchstove pipe may be'secured, to fit in the firebox I when packed or when the stove is erected to fit over the top of the draft-extension part- I! of. which the protruding lug ll, itsitu in the slot l'l willlimit the extent downwards of a 4 in. stovepipe.

In. the stove casing end-wall2, relatively near the casing front and back walls are two openings in the form of key-hole slots 2 see Figs. 10 and 12, commencing immediately below 2? of the casingv and plate 2, see Fig. 4', which slots have caps 2' attached by suitable means to the inside face of the casing end wall 2; the said caps have a two-fold purpose namely; to cover inwardly the said key-hole slots thuspreventing any escape thru the'slots of the products of combustion; each cap has an outwardly looking. transverse ridge 2 which in outline faces the transverse center of the said slots to aid in seating and'securely holding bolt heads affixed to any cooking utensil adapted to be thus attached, especially, the utensil-dufile carrier by its bolt attachment feature inconnectionwith the said key-hole slots; As-a valuable accessory and working part of the stove an article of necessary utility is provided, namely the combined'utensil-duifle carrier I8, see Figs; 1, 3 and 4, made and adapted especially to carry a complete cooking and serving outflt. of sixty or more piecesnested therein, and the combined utensil-duifle carrier then to accurately fit into the stoves oven for storage or transportation, see Fig. 1. When the stove is being erected for active use; as hereinafter more fully described, the combined utensil-duffle carrierand its contents are removed from the oven, then the contentsfrom the carrier; The utensil-duille carriermember is rectangular in form, having a lid l8, hingedat l8, the lid having a unique countersunk and perforated part in its top to receive and hold the lids lifter 18, standing upright for use, and when closed to lie flat against the lid top, for" close packing within the oven.

The upper edges of the utensil-duflle carrier member are curved inwardly and around a wire la see Figs. 4, l0 and 11, of sufiicient caliber tostrengthen the mouth border of the member l8, as contacting with its lid Ill lf'he side wall I8 of the utensil-duflle carrier which is to abut the casing. end wall 2., has two holes, see Figs. 10 and 11', thru which pass the threaded shanks of round head bolts I8; the threaded shanks enter nuts l8 attached. flatly to the side wall l8 inside face, the upper flat edges of the nuts contact squarely against the wiredborder l8 When the bolts I 8 are screwed into their respective nuts, their'shanks do not extend further into the side walls IB than the nut limit, thus not being in the way 'of the dufll'e, when packed therein; the bolt heads thus lying against the outside face of plate l8 do not interfere with the accurate fitting in of the utensil-duflle carrier member within the stoves oven. The bolts are so aligned in the said members side plate l8 that when their shanks are slightly unscrewed, to a thickness of the end plate 2 of the stove casing, the bolt heads l8 readily enter the circular part of the key-hole slots. A hand pressure downward on the top of the utensil-duffle carrier causes the bolt heads H3 to pass beyond the transverse ridges 2, which hold the bolt shanks in contact thus seated in the lower constriction of the keyhole slots by the combined action of the relative parts mentioned, see Figs. 10, 11, 12, 3 and 4.

The stove casing is provided with a front frame member I9, Figs. 1, 2 and 3, rectangular in form, having horizontal reaches, |9 and I9 and upright reaches l9 and I9 made of band-iron of adequate width and gage, and having a reinforcement-bar l9 permanently attached by its ends to the upright-reaches ofthe front frame member |9. A like rear frame member is also provided; both frame members are independently but permanently and pivotally attached to the bottom part of the stove casing Figs. 2 and 4, so that when the stove is in the form of the one package for storage or transportation the frame member l9, by its several reaches, covers and protects the front edges of the stove casing while the frames reinforcement-bar |9 transversely binds against the casings front plate 6 and its doors in protection and the absolute closure thereof; and in a. like manner the rear frame member 20 encompasses and protects the stoves rear edges, while its reinforcementbar 20*, Fig. 1, protects the casings back plate 5.

To secure the frame members I!) and 20, in locked alignment when folded over the stove in its one package form, and also to hold the said frame members interlocked in relation when, by their pivotal connection with the bottom plate of the stove casing, the frame members depend therefrom to elevate and support the stove and its parts when in active service, I provide two connection bars 2| pivotally attached to the upright reaches of the rear frame-member at M see Figs. 1 and 2, the said connection bars reach forward to contact and become engaged with interlocking spring-members I9 attached to the upright reaches of the front frame member I S. The connection bars 2| being identical in construction, adaptation and action; and the cooperative interlocking spring members IQ, of each other likewise, one of each pair will be described. The connection bar 2|. is permanently but pivotally afiixed to the upright reach 20 of the rear frame member 20, at 2| and extends forward, terminating in an inwardly curved portion carrying, as thru its lip, a ring and rearwardlythereof, as made thru the connection-bar 2|, are two elongated slots 2| and 2| a relative distance apart for the purpose hereinafter described.

I provide an elongated slot I9 Fig. 3, in each of the upright reaches of the frame member I9 and to coincide in size and alignment with slots 2| and 2| shown in the connection-bar 2| (see Figs. 1 and 3), to receive a reduced end I9 of an interlocking spring-member |$l which is risidly affixed, at I9, to the upright reach of the frame member |9, see Figs. 1, 3, 15 and 16, and which interlocking and release of the reduced-end part l9 is operated as by hand when applied to an elongated wire ring I9 carried bya formed bend l9 in the upper reach of the interlocking spring-member I9. When the front slot2l in the connection bar 2|, registers with the .slot |9 in the upright reach of the frame member l9, and the interlocking spring-members, slot-fitting, 1 reconnection, support position, to the stove.

The frame members ground contacting, horizontal reaches 19*: and 2|.! are made one-quarter-inch-longer than their stove casing attached, horizontal reaches 19 and 20 for a double purpose, namely: to give the frames an outward stint as to ground contact'to prevent a right to left rocking ofthe stove when in active use; and when the stove is folded up as shown Fig. l the extra lengths of IS and 20 one-eighth-inoh on each side, permits the frame-members at their extra spreadjunctures to-snugly fit over the contacting edges of the brace-protection plate, 23, see Fig. 1,

and to retain the said plate when it is placed in protection to and over the top plate 4 of stove.

The reinforced parts 22, see Figs. 2 and 5, are permanently afiixed to the bottom of the stove and are of the pivotal arrangement which permanently attach independently each frame member to the stove casing; the said reinforced parts, are trebled in thickness at their outer ends, but gradually decrease in thickness toward the joints which hold the pintles of the pivotal arrange- 'ment; such thickened construction causes the frames I9 and 28, when they are moved to the stove supporting position, shown in Figs. 3 and 5, to have a decided strut away from each other, forwardand aft, in their downward reaches, and gives the frame members a firmer support seating on the ground, the frame members being so held in said position by the, combined alignment of slots 2| of the connection bars 2|, with the slots l9 of the upright reaches IS of the frame member l9 being interlined by the reduced ends I9 of theinterlocking spring members I9 By viewing Figure 2 will be seen tongue like parts of l9 and 20 of the frames Hand 20, extend therefrom and are cylindrically formed to take each a pintle for connecting the frames to the parts 22 each of which has two tongues. cylindrically formed for taking the said pintles 'for pivotally connecting the said frames to the bottom plate I of the stove casing; see also Hi 20 22 and 22, Fi ure 5. I 7

To aid the frame members strutting and interlocking feature described and to prevent any rocking'to and fro of the said frames when held in the support position I provide the brace-protection plate 23, see Figs. 21, 1, 3 and 4, made of comparatively stiff; sheet-metal conforming in size and itsedges formed to fit over the borders of the stove top,-see Fig. l. The right and left ends of the plate have notches 24, Fig.2l, made to fit the inside surfaces and edges of the *upright reaches of the frame members l9 and '28, the said notchesbeing relatively an eighth of an inch further apart fore andaft, on each end of the brace-protection plate, than'the relative contacting surfaces therewith of the said upright reaches of frame members so that when the frame members are in their strut supporting position and the brace-protection plate 23 is slightly forced into place, as seated fore and aft on the reinforcement bars |9 and 25*,the notches 24 contacting the surfac'zes aforesaid of the upright reaches of the frame-members-with-the lower edges of the connection bars -2i, contacting the curved edges of the brace protection plate, the brace-protection plate thus holds the ultimate strut-support position of the frame members in rigid alignment thus precluding any playwhatever'between the pivotal arrangement, slots and interlocking spring member alignment of the framemembers, whenthe portablestove is setup, and in active use.

Referring particularly to Fig. 18, a modified form of the connection bar and upright reaches is provided. In this-instance'the connection barsll areprovidedwith slots land 2-tore ceive-abolt which is secured to theupright-reacn-and awing nut 3 is threaded-onto such bolt so thatwhen the slot 2 has received the bolt *the'wing nut 3may be screwed up tight'for securely fasteningtlie connection bar 21 imposition.- Aspring'plate'i is secured at 4 to each upright reach and "is adapted to be sprung outwardly-whenthe latch bar ii-is moved-downwardlybetween the-frames upright reach and spring plate 5. The spring plate-5 has a-passage whichreceivesthebolt.

To demount the stove from its erected-position to its storage, or transportation, compact form, first remove the 'utensil-duflie carrier from its outside stove connection,-pack dufile in it and place the utensil-dufllecarrierinthe-oven. Then remove the draftextension partsfrom "their outside stove connections-flattenthecylindrical'part andplace instoves fire-box. Then remove the brace-protection platefrom-its brace seated contacts, as bearing on-the frames-under-the stove, and place the brace-protection plate in its 'protection position as contacting the top of stove, see Fig. 1.

By'applying a hand pullonthewire -rings, lift the'connectionbars 2| clearof the interlocking attachments; swing the thus disconnected-frame members, as by their individual pivotal connections, respectively overthefront and rear borders of the stove to protect same and to -bind-the brace=protection plate to thestovestop; -to hold all securely locked and to prevent rattling of the parts swing the-connecting bars 2-|,- as by their pivotal connections, forward for their outward slots llitoregister with the slots IB and to be interlocked therewith by thealignment, as within said slots, of the snugly fitting reduced ends 19 of the interlockingspring-members19; theconnectionbars also thus protect the end plates 2 and 3, of the stove casing; the brace bar of the rear frame member protecting therear plate- 5 of the stove casing; the brace bar of the front frame member protecting the front plate of the stove casing and thedoor ringsandthe stoves doors and holding-said-doors fully closed in their automaticallylockedalignment with'the stove casing front plate and fullypreventing-loss of any of the stoves contents; thusisthis port-'- able stove, compact, complete, convenient and clean, substantially described 7 all for the-purposes as herein set forth.

'I claim:

1. A portable stove comprising a casing having top, bottom,'back,-front and end plates and trans-' versely divided into a firebox and an oven compartment by a removable division plate having a-plurality of openings in its upperrpart and. having a reinforcement plate with a recessed portion removably attached to the firebox Side of the division plate below said openings, the said two plates having adjacent surfaces in contact and thereby forming a pocket as between them, a

as-saav removable oven in the said oven compartment having its walls spaced'therefrom, a baffle plate with its forward surface having therein a restricted opening,-said-baiile plate being attached to the casing topplate and depending therefrom as within the'oven compartment and contacting the top of the oven in siidable and hooked-up alignment.

- 2. Aportable'stove as set forth in claim 1, a U-tu'be brace nesting in a pocket as formed by said division and reinforcement plates, a flat metal bar permanently attached at right angle to the U tube arms, said flat'bar extending downward and upward as between the said division and reinforcement'plates, said flat bar ends terminating in right angle seats thereof and bolted respectively to the bottom plateand to the top plateof sa-idcasing, the arms of the U tube extending rearwardly between the division and reinforcement plates and-through openings-in the casing back-plate, the said arms terminated by inside threaded ends mounted. by vented capplugs made to bear against 'the outer surface of the casing back plate.

3. A portable stove comprising a rectangular outer casing having embodied "therein a communicating fire box and oven compartment, a pair of rectangular frames each composed of comparative horizontal reaches and upright reaches, a pair of reinforcement bars and a pair of connection bars, said frames and bars composed-of fiat metal, special means; provided pivotall-y connecting said frames as front and rear framesin spaced relation to the bottom of said casing, said connection bars pivotally connected opposite each other to said upright reaches of the-rear'frame, each connection barprovided with two spacedrelation slotsin'its forward extension, each-upright'reach of the front frame provided therein-with an oppositely disposed slot and each said upright reach having an oppositely disposed interlocking spring-member attached thereto to align with the-interior slot in the said connection bar'and'theslot in the said upright reach providedtohold the -frames "aligned in a support position as pivotally connected to the bottom of said casingand depending therefrom, and in another -position,'thesaid interlocking Spring mber to align with the slot in the said upright reach-and the'posterior slot in the said connectionbar'tohold theframes as folded equally over the front and rear-borders of the stove casing.

4. A portable stove comprising a casing, a division plate dividing th casing into a .firebox and an-oven compartment and secured to the inner Walls of the casing, a reinforcing plate secured at its edges to the division plate and having itsmajor portion spaced fromthe division plate to form a pocket between the plates, and a reinforcing member disposed within said pocket.

5. A portable stove comprlsinga casing, a division plate dividing the easing into a firebox and an oven compartment and secured .to the inner walls of the casing, a reinforcing plate secured at its edges to the division plate and .having its major portion spaced .from the division plate to form a pocket between the plates, a reinforcing member disposed wlthinsaid pocket, said reinforcingmember being of tubular formation, and means to vent the interior of saidtubular reinforcing member.

6. A portable stove comprising a casing, a-division plate dividing the casinginto a firebox and an oven compartment and secured to the inner walls of the casing, a reinforcing .plate secured at its edges to the division plate and having its major portion spaced from the division plate to form a pocket between the plates, a reinforcing member disposed within said pocket, said reinforcing member comprising a substantially U-shaped tubular member having its arms extending through one of the walls of the casing, and vented caps closing the ends of the arms of the U-shaped tubular member.

7. A portable stove comprising a casing, a division plate dividing the casing into a flre box and an oven compartment and secured to the inner walls of the division plate and having its major portion spaced from the division plate to form a pocket between the plates, a reinforcing member disposed within said pocket, said reinforcing member comprising a substantially U-shaped tubular member having its arms extending through one of the walls of the casing, vented caps closing the ends of the arms of the U-shaped tubular mem ber, and spaced tubular braces connecting the arms of the U-shaped tubular member within the pocket and communicating with the interior of the U-shaped member.

8. A portable stove comprising a casing, a division plate dividing the casing into a firebox and an oven compartment and secured to the inner walls of the casing, a reinforcing plate secured at its edges to the division plate and having its major portion spaced from the division plate to form a Pocket between the plates, a reinforcing member dispose within said pocket, said reinforcing plate terminating at a point spaced a substantial distance below the top of the division plate, there being openings in the division plate above the reinforcement plate to place the firebox in communication with the oven compartment.

9. A portable stove comprising a substantially rectangular casing having front and back walls, a division plate separating the casing into a fire box and oven compartment, said division plate having openings placing the two compartments in communication, a vertical baffle plate disposed in said oven compartment adjacent an end wall of the casing and having its lower edge bent upwardly to form a channel, an oven removably positioned in said oven compartment and having secured to one corner thereof a strip having its free edge bent downwardly to slidably engage in said upwardly facing channel, said oven being spaced from the walls of the oven compartment to provide a draft passage around the oven, said baffle plate having a draft opening therein, the front of the oven compartment having an opening adapted to receive the oven, the forward portion of the oven having a peripheral flange to rest against the front of the casing about the opening in the casing, and means for connecting the rear of the oven with the back wall of the casing to removably secure the'oven in operative position within the oven compartment.

10. In a portable stove, a casing having front, back, top, bottom and end walls, and comprising a fire box and an oven compartment, a removable oven, means within said oven compartment, including an upwardly facing channel, for slidably supporting said oven, said casing front plate having an opening affording access to said oven compartment, the margin of said opening having a notch opposite the end of said channel, and said oven having a flange around its mouth adapted, when said oven is inserted in assembled position, to engage and overlap the margin of said opening and cover and conceal the said notch.

11. In a portable stove of the character described, a casing having top, bottom, back, front and end plates and an oven compartment, a slidably removable oven located in the said even compartment and spaced from the walls thereof and forming with the walls of the compartment a draft passage around the oven, said oven having a strip affixed thereto, adjacent one corner, the free edge of said strip being bent downwardly, a baffle plate secured to the underside of said casing top plate and depending therefrom in said oven compartment, the said bafile plate terminating along its lower edge in an upwardly facing channel adapted to slidably receive the downwardly bent edge of said strip, said casing front plate having an oven compartment opening for receiving said oven, said opening having a countersunk margin forming a seat for a flange surrounding the oven mouth, said margin having a notch opposite the end of said channel to admit said strip, said oven adapted to be inserted through said opening in the casing front plate into said oven compartment and slidably supported by said bafile plate, a bolt passing through an opening in the back of said casing and a like opening in the rear end plate of said oven, nut means engaging said bolt to hold said oven in position and seat the oven mouth flange against said countersunk margin of said oven compartment opening in such position as to cover said notch therein.

12. A portable stove comprising a casing, a set of hinge members secured to the underside of the casing along a line parallel with but spaced from each side edge of the casing, said hinge members tapering in thickness from their inner edges to their outer edges to provide inclined under surfaces, a pair of approximately rectangular frames formed of bars relatively thin and wide-in cros section, said frames encircling said casing, when in stored position, and each being pivotally connected along the inner edge of one side to the thin outer edges of one set of said hinge members, whereby each of said frames may be swung around said pivotal connection into stove-supporting position, the engagement of the surfaces of the frame side bars with the inclined under surfaces of said hinge members, When sai frames have been swung to their limit of movement, causing said frames to diverge downwardly from the casing, and detachable means for bracing said frames to hold them rigidly in such downwardly diverging relation.

13. In a portable stove, the combination with a rectangular casing, of a pair of approximately rectangular frames, each comprising a pair of horizontal and a pair of substantially vertical reaches, means pivotally connecting one horizontal reach of each frame to the bottom of said casing in spaced, parallel relation, whereby said frames may be swung around said pivotal connecting means into a position in which the free horizontal reaches thereof engage the ground to support the stove, and a brace plate constructed to fit in between the four vertical reaches of said frames when in stove-supporting position, said plate having notches in its opposite edges arranged to engage said vertical reaches and interlock therewith, so as to rigidly hold said frames against relative pivotal movement.

14. In a portable stove, the combination with a rectangular casing, of a pair of approximately rectangular frames, each comprising a pair of horizontal and a pair of substantially vertical reaches, means pivotally connecting one horizontal reach of each frame to the bottom of said casing in spaced, parallel relation, whereby said frames may either occupy a position encircling said casing or be swung around said pivotal'connecting means into a position in which the free horizontal reaches thereof engage the ground toconstitute legs for supporting the stove, and a brace-protection plate constructed to fit in -between the four vertical reaches of said frames when in stove-supporting position, said plate having notches in its opposite edges arranged to engage said vertical reaches and interlocktherewith, so as to rigidly hold said frames against relative pivotal movement, said plate being of such size and shape as to rest upon and conform substantially with the area of the top of the casing, when in stored position, and to be embraced by said frames when in casing-encircling posim tion.

WILLIAM EDWARDS BAXTER.

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