US1094151A - Knockdown or collapsible stove. - Google Patents

Description

0. C. KEMP.

KNOCKDOWN 0R GOLLAPSIBLE lSTOVE.

APPLICATION FILED JULY 1. 1912.

1,094,151 Patented Apr. 21, 1914 4 SHEETS-SHEET 2.

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O.G.KEMP.

KNOGKDOVVN 0R GOLLAPSIBLE STOVB.

APPLIOATION FILED JULY 1, 1912.

fil/'Q d4 .Pamented Apr. 21, 1914.

4 SHEETS-SHEET 3.

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KNOCKDOWN 0R GOLLAPSIBLE STOVE.

APPLICATION FILED JULY 1, 1912.

1,094,15L Patented A111521, 1914 `Z" 7Z5 n I 7@ 73d c g" Q3 2:2.. Z T I Zig i127 i. i @Z WIWI. j, l IWW m gli, I 7? Civ OLIVER C. KEMP, 0F CHICAGO, ILLINOIS.

KNOCKDOWN OR COLLAPSIBLE STOVE.

limer-51.

To ZZ fro/1,0m t may concern.'

.lle it known that li, OLIVER C. KEMP, a citizen of the United States of America, and resident of Chicago, Cook county, Illinois, have invented a certain new and useful Improvenient in Knockdown or Collapsible Stoves, of which the following is a specification.

lily invention relates to knock down or collapsible stoves in general, but more particularly to those employed for cooking purposes, and especially those which are adapted for use as camp or army stoves.

Generally stated, the object of my invention is to provide a novel and highly eiiicient knock down or collapsible cooking stove which compact and comparatively small and light package for transportation purposes.

il special object is to provide a novel and improved construction whereby a stove of this kind can be taken apart and the elements thereof crowded closely together to form a package of considerably less area than the top of the stove, when the structure is packed for shipment, and of moderate thickness.

Another objectis to provide a novel and improved construction whereby practically all of the parts or elements of a knock down stove cf this character are substantially of the same size and shape, thus making it possible for the diilerent elements to be crowded or nested tightly together to form a compact package of rectangular form and of considerably less area than the top of the stove.

Another object is to provide a novel and improved construction whereby a stove of this character, although made of thin sheetmetal. is nevertheless strong and rigid and capable of eiiicient service with less liability of becoming distorted or bent out of shape than heretofore.

Another object is to provide a novel and improved construction whereby aluminum may be employed for the entire outer surface of stove of this kind, without danger of the sheet aluminum being injured by the fuel or fire, thus protecting a comparatively thin sheet metal stove of this kind against the danger of unduly and prematurely rusting out, which latter has always been a serious objection to stoves of this kind, especially those employed for camping purposes.

A further object is to provide a novel and Specification of Letters Patent.

can be taken apart andreduced to aV Patented Apix 21, 1914. serial No. 707,061.

improved construction whereby a stove of this kind is composed of hollow sections, each section being substantially cubical in form, and the said sections being adapted for use in building up a stove of any desired size or capacity, the stove thus constructed being uniformly sectional in character, and expansible at will to suit the requirements of any particular case.

It is also an object to provide a novel and improved ,construction whereby, in a stove of this kind, the grate for supporting the tire can be either low or high, and whereby a lirev can be either deep or shallow, depending upon the character of the cooking to be done.

It is also an object to provide certain details and features of improvement, such, for example, as a damper for the smoke pipe which is common. to the two combustion chambers of the stove, when the latter is made double and comprises four sections, tending to increase the general etliciency and serviceability of a knock down or collapsible stove of this particular character.

To the foregoing and other useful ends my invention consists in matters hereinafter set forth and claimed.

In the accompanying drawings-Figure 1 is a perspective of a double or full sized collapsible cooking stove embodying the principles of my invention, the same being shown set up and ready for use. Fig. 2 is a perspective of the same stove lmocked down and reduced to a comparatively small and substantially square package for shipnient, the said package being substantially the same in area as any one of the four sections of which the stove is composed, as shown in Fig. 1, the said package being shown in the pan or other cooking utensil which serves as a container for the package, and a similar pan or utensil being shown in position to be placed over the same to serve as a cover therefor. Fig. 3 is a perspective of a similar or single stove embodying` the principles of my invention. Fig. 4l is a perspective of the right hand rear section of the top of the stove shown in Fig. 1. Fig. 5 is a perspective of the damper employed for the smoke pipe of the stove shown in Fi 0f. 1.

Fig. 6 is an enlarged detail sectional view of one of the joints formed by securing together the edge portions of two end walls and the two middle or longitudinal walls of the said stove in Fig. 1, the said section being` taken on line 6 6 in Fig. 9. Fig. 7 is a horizontal section through the stove on line 7-7 in Fig. 1. Fig. 8 is a transverse vertical section on line 8 8 in Fig. 7. Fig.

9 is a longitudinal section on line 9 9 in Fig. 7. Fig. 10 1s an enlarged detail sectional view on line 10--10 in Fig. 9. Fig. 11 is an enlarged detail sectional view on line 121-11 in Fig. 9` with certain parts omitted. Fig. 12 is an enlarged detail sectional view on line 12-12 in Fig. 9. Fig. 13 is a horizontal section through the smoke pipe on line 13-13 in Fig. 9. Fig. 14 is a detail sectional view on a larger scale of a portion of the three ply sheet material from which the stove is made.

As thus illustrated, and referring to Fig. 1, itwill be seen that my invention cornprises four stove sections, A, B, C and D, which are secured together to form a rectangular cooking stove having four griddles, a, Z), c and d in the top thereof, and Vwhich are each substantially cubical in form, whereby the top of the stove is substantially square. The top of the stove is, therefore, composed of the right and left front sections b1 andal, and the right and left sections c1 and di, each of said sections being substantially square in outline, and each section consisting of sheet metal having the four straight edges thereof turned downward or inward to provide strengthening and attaching flanges, as shown more clearly in Figs. 8 and 9. The front stove sections A and B have front walls a2 and b2, each front Wall consisting` of one or more layers of sheet metal having the vertical edges thereofturned inward to form vertical strengthening and attaching flanges, as shown in Fig. 7, the upper edges of these .front walls being secured inside of the front flanges of the sections al and b1 in the manner shown in Fig. 8. The right hand side wall sections Z13 and c3 are of similar character and have their vertical edges turned inward to form flanges of the kind prel viously explained, the upper edges of these side walls being secured inside of the flanges formed at the side edges of the sections b1 and c1, in the manner shown more clearly in Fig. 8. The left hand side wall sections 0.3 and cl3 are similar to the right hand side wall sections, being provided with inturned lvertieal'flanges at'their edges-that is to say, at their meeting edges, which is also the ease with the outer wall sections c3 and b3, and the upper edges of these side wall ksections a3. and cl3 being secured inside of the iianges of the top sections al and d1. rihe rear Vend wall sections 04 and Clt are rect-angular in shape, and are each composed of sheet metal, each section having the two vertical edges thereof turned inward toform flanges which are secured to the rear vertical edges of the longitudinal wallsfof the stove, in the manner shown in Fig. 7. The stove is divided into two parallel and longitudinally extending` combustion chambers il and F by the longitudinal partition sections (05, Zf, c5 and d5, these rectangular sheet metal sections being similar to the side wall sections 3, c3, r3 and (Z3, the flanges thereof being secured together at the center of the stove in the manner shown in Fig. 7, and the front and rear edges thereof being secured to the flanges of the front and rear end wall sections, while the upper edges of these longitudinal partition wall sections are secured to the inner downtnrned edges or flanges of the top wall sections, as shown in Figs. 7 and 8.

The four bottom wall sections G, H, I and J, are each substantially square in form and are each provided with four downtnrned edges forming flanges which are secured to the side and end walls of the stove, each bottom section serving as a grate for supporting the fuel, and being preferably made of perforated sheet metal, as shown in Fig. 7. Below the two grates are the transverse partition walls K and L, these being merely straight rectangular sheets of metal with unbent edges, whereby their vertical end edges are adapted to be secured to the vert-ical flanges of the side wall sections of the stove, and whereby thel upper edges of these transverse partition walls are adapted to be secured to the downtnrned meeting tianges of the front and rear sections of the grate, as shown in Fig. 9, Throughout the construction the said flanges and edge portions of the differentsheet metal sections are separably or detachably secured together b v stove bolts M of any suitable, known or desired character, as shown more clearly in Fig. the nuts m of said bolts being preferably disposed inside of the stove and always with one side thereof in Contact with one of the sheet metal walls to prevent rotation of the nuts when the heads of the bolts are turned by the application of a screw driver thereto. Thus the front and rear sections of the stove are closed all around. except at their meeting sides, these being left open to enable the sections A and D to coperate in forming a` combustion chamber of ample size therein, and in order to enable the units B and C to coperate in providing a similar combustion chamber within the stove. In constructing the stove the side and end and bottoni wall sections are all assembled together. in the manner shown in Fig. 7, and the four top wall sections are then placed in position and secured to the knock down structure by the stove bolts which are employed for this purpose.

The details of the griddle, smoke pipe and damper construction are as follows: Each griddle is preferably composed of a round piece of sheet metal with a slight depression in the center' thereof shown in Figs. 8 and 9, so that the said griddles will fit the round holes in the top of the stove, and the depression in the top of each griddle is filled in flush with a layer of asbestos, whereby these griddles are suitable for certain kinds of cooking. The smoke pipe N is composed of telescoping sections, each section being composed of sub-sections n and nl, as shown in Fig. 13, these sub-sections having vertical flanges n? on the outside thereof, which flanges are secured together by means of stove bolts n3. In this way the said stovepipe can be taken apart and each section thereof can then be subdivided and spread out flat to facilitate the packing of the stove for transportation purposes. The top of the stove is provided with an opening formed by the two half round openings O in the rear top sections c1 and (Z1, and around this opening a collar P of angle iron is bolted fiatwise upon the top of the stove. The smoke pipe telescopes downwardly over the riser of the said collar and is secured thereto by stove bolts of the kind previously described. To control the draft in the smoke pipe, a damper Q is provided, the said damper consisting of a half round portion g provided at its inner end with a short bearing portion g1 and at its outer end with a longer bearing portion Q2 having an upturned portion g3 that serves as a handle. rThe rear end walls of the stove are provided with a round opening' R having' a notch r at the bottom thereof, said opening being large enough to prevent rotation therein of the portion 12 of the damper, and the said notch being adapted to allow said portion Q2 to drop downward slightly and thereby prevent the damper from rotating in either direction. rlhis will hold the damper upright in the position shown in Fig. l2, thus maintaining both combustion chambers in communication with the smoke pipe. In this position the damper is slightly between the two rear longitudinal partition walls ci and Z5 and these walls serve in this way to assist in holding the damper in the upright position thereof. The end portion g1 may rest on a stove bolt or other portion extending from one wall c5 to the other wall (Z5 at a suitable distance in front of the stove pipe hole. TVith this arrangement the damper can be turned in either direction to bring either combustion chamber into communication with the stove pipe` and to totally shut olf the draft so far as the other chamber is concerned. Vhen the damper is turned in either direction it rests against one or more of the stove bolts by which the stove pipe is secured to the collar P that encircles the hole in the top of the stove, or against any other portion of the pipe connection. At the front of the stove the dampers S and T control the influx of air over the lire in the two com` to the top of the stove, whereby a quick and hot fire may be insured for certain kinds of cooking. On the other hand, the combustion chamber formed by the sections B and C has the grates H and I thereof disposed lower down for the purpose of insuring a. deep fire when other kinds of cooking are necessary. Y

Thus the stove is adapted to meet all the requirements and conditions which are ordinarily found necessary or desirable in the. use of cooking stoves.

When the stove is knocked down and taken apart, the different rectangular sec tions of the side and end and top and bottom walls go together compactly and in fiatwise manner, as the different lianged sheet metal sections will nest'together nicely for this purpose, and the entire package will not be greater in area than one of the top wall sections of the stove, and not of more than moderate thickness. In order to make the sections nest more readily together, and in order to bring the different thicknesses of material close and solidly together, the rear sections of the sides and top and back and bottom may be made a trifle smaller than the front sections of the stove, say the thickness of the material, whereby each rear sec-` tion will fit within one of the corresponding front sections, and whereby there will be just enough difference in the size of the front and rear sections to insure the desired compactness of the packagewhen the stove is knocked down and packed for shipment. This package can then be placed in the stew pan or other cooking utensil U, provided for this purpose, and a larger pan V of the same character can then be telescoped downwardly over the pan U to form a cover for the packH age. Thus, an ordinary pan or other similar auxiliary of the stove is employed as the container for the flat rectangular package formed by the knocked down parts or s-ections of the stove, and another pan or utensil is used as the cover for said container.

The stove may be of any suitable, known or appro-ved materials. As a matter of further and special improvement, however, the different rectangular wall sections of the stove, except those of the grate, may be composed of an outer thickness of sheet aluminum, an inside thickness of iron, and anV intermediate thickness of asbestos, the three layers being held together by rivets in the manner shown in Fig. 14. Thus, the outer layer N of aluminum will prevent the eX- terior of the stove from rust-ing, the inner layer X of sheet iron will take the wear and tear-that is to say, will not be injured by the fuel or lire, and the intermediate layer Y of asbestos will serve to reduce the radiationA of heat from the stove, and also to prevent the aluminum from being impaired by the heat. By reason of the large number of flanges on the different edges of the sections of the stove, it is possible to use comparatively thin metal, as these flanges form stiftening ribs for rendering the structure as a whole very firm and rigid.

As shownin Fig. 3, the construction is substantially the same as that previously described. ln this case, however, the stove has only a single combustion chamber and is only half as large as the one previously described. For this purpose the rear section Z of the top of the stove is made with the smoke pipe hole formed entirely therein.

Otherwise, as stated, the construction is exactly the same as that previously described. Thus it will be seen that by my invention I make it possible to use the same size of sheet metal sections Yinbuilding the stove of either large or small capacity. Two stove sections can be secured together to form a unit or single stove, as shown, in Fig. 3, or four sections can be` secured together to provide a double stove, composed of Yt-wo units, as

. shown in Fig. l.L

. With the combination of a plurality of `complete interdependent stove units, such as that shown in Fig. 3, for example, and the modified top walls shown in Fig. 4, together with the damper construction illustrated, and means for detachably uniting said units, it'becomes possib-le to increase or decrease the capacity of the stove at will, whereby a single stove like that of Fig. 3 may be had if desired, or a double stove like that of Fig. l, if a larger stove is necessary.

That l claim as my invention is:

l. A knock down cooking stove comprising rectangular walls, each wall composed of an outer sheet of metal with one or more of the edges thereof turned in to form a flangel inner sheets of asbestos extending to the said flanges, inner sheets of metal covering said asbestos and extending to the said flanges, and means extending through the said flanges to secure the walls together.

2. A knock down cooking stove compris ing rectangular walls, each wall composed of an outer sheet of metal with one or more of the edges thereof turned in to form a flange, inner sheets of asbestos extending to the said flanges, inner sheets of metal covering said asbestos and extending to the said flanges, and means extending through the said flanges to secure the walls together, the said outer sheets of metal being aluminum.

3. A knock down cooking stove comprising rectangular walls, each wall composed. of an outer sheet of metal with one or more of the edges thereof turned in to form a flange, inner sheets of asbestos extending to the said flanges, inner sheets of metal covering said asbestos and extending to the said flanges, means extending through the said flanges to secure the walls together, the said outer sheets of metal being aluminum, and the said inner sheets of metal being iron.

et. The combination of a plurality of come plete interdependent stove units, each said unit comprising a combustion chamber, and means for detachably uniting said units, whereby the capacity of the stove may be increased or decreased at will, and a smoke pipe common to all of said units when united.

5. The combination of a plurality of complete interdependent stove units, each said unit comprising a combustion chamber, and means for detachably uniting said units, whereby the capacity of the stove may be increased or decreased at will, and a smoke pipe common to all of said units when united, the said units being each composed of a plurality of sub-units of uniform size.

G. The combination of a plurality of complete interdependent stove units, each said unit comprising a combustion chamber, and means for detachably uniting said units, whereby the capacity of the stove may be increased or decreased at will, and a smoke pipe common to all of said units when united, each unit having square wall sections, and each section corresponding in size to the front of the unit, whereby the knock down package formed by taking the stove apart is not larger than the front of any unit.

7. The combination of a plurality of complete interdependent stove units, each said unit comprising a combustion chamber, and means for detachably uniting said units, whereby lthe capacity of the stove may be increased or decreased at will, and a smoke pipe common to all of said unit-s when united, the said units being each composed of a plurality of sub-units of uniform size, each unit having square wall sections, and each section corresponding in size to the front of the unit, whereby the knock down package fo-rmed by taking thc stove apart is not larger than the front of any unit.

8. The combination of a plurality of complete interdependent stove units, cach said unit comprising a combustion chamber, and means for detachably uniting said units, whereby the capacity of the stove may be increased or decreased at will, and a smoke. pipe common to all of said units when united, each unit composed of a plurality of creased or decreased at will, and a smoke pipe common to all of said units when united, the said units being each composed of a plurality of sub-units of uniform size, whereby the knock-down package formed by taking the stove apart is always of less area than the top of the stove.

10. rlhe combination of a plurality of complete interdependent stove units, each said unit comprising a combustion chamber, and means for detachably uniting said units, whereby the capacity of the stove beincreased or decreased at will, and a smoke pipe common to all of said units when united, together with a damper for said pipe,

.. formed to close either unit and open the other, or keep both units open to said pipe.

11. A knockdown stove composed of detachably connected hollow sub-units, a smoke pipe common to all of the sub-units, each subunit being composed of detachably connected walls inclosing part of a combustion chamber, the detachably connected tops of said sub-units being flush and combining to form a flat top, and the fiat package formed by knocking down the stove being of the same rectangular area as the side of any sub-unit, together with means for detachably uniting said sub-units.

12. A knockdown stove composed of detachably connected hollow subunits, a smoke pipe common to all of the sub-units, each sub-unit being composed of detachably connected walls inclosing part of a combustion chamber, the detachably connected tops of said sub-units being flush and combining to form a flat top, and the liat package formed by knocking down the stove being of the same rectangular area as the side of any sub-unit, each and every sub-unit having a support for fuel, and each sub-unit having an open side communicating with the open side of the adjacent sub-unit, together with means for detachably uniting said sub-units.

13. A knockdown stove composed of de tachably connected hollow sub-units, a smoke pipe common to all of the sub-units, each sub-unit being composed of detachably connected walls inclosing part of a combustion chamber, the detachably connected tops of said sub-units being flush and combining to form a fiat top, and the flat package formed by knocking down the stove being of the same rectangular area as the side of any sub-unit, the said sub-units being cubical in shape to facilitate the arrangement of the said walls to form a Hat package when the stove is knocked down, together with means for detachably uniting said subunits.

14. A knockdown stove composed of detachably connected l hollow sub-units, a smoke pipe common to all of the subunits, each sub-unit being composed of detachably connected walls inclosing part of a combustion chamber, the detachably connected tops of said sub-units being flush and combining to form a flat top, and the flat package formed by knocking down the stove being of the same rectangulararea as the side of any sub-unit, each sub-unit having a perforated bottom wall serving as a grate for supporting the fuel, `together with means for detachably uniting said sub-units.

15. A knock-down stove composed of hollow cubes, one cube disposed in front of the other, in alinement therewith, each cube comprising one half of a combustion chamber and having the square walls thereof detachably secured together, whereby the Hat knockdown package formed by taking the stove apart is substantially the same in size as any said wall, together with a smoke pipe common to all the cubes, and means for detachably uniting said cubes.

16. A knock-down stove composed of hollow cubes, one cube disposed in front of the other, in alinement therewith, each cube comprising one half of a combustion chamber and having the square walls thereof detachably secured together, whereby the flat knock-down' package formed by taking the stove apart is substantially the same in size as any said wall, each wall having an inte gral bolting flange at one or more edges thereof, together with a smoke pipe common to all the cubes, and means for detachably uniting said cubes.

17. A knock-down stove vcomposed of hollow cubes, one cube disposed in front of the other, in alinement therewith, each cube comprising one half of a combustion chamber and having the square walls thereof detachably secured together, whereby the flat knock-down package formed by taking the stove apart is substantially the same in size as any said wall, each cube having a single opening in the top thereof, together with a smoke pipe common to all the cubes, and means for detachably uniting said cubes.

18. A knock-down stove composed of hollow cubes, one cube disposed in front of the other, in alinement therewith, each cube comprising one half of a combustion chamber and having the square walls thereof detachably secured together, whereby the fiat knock-down package formed by taking the stove apart is substantially the same in size as any said wall, and a knock-down smoke pipe for said stove, common to all the cubes, said pipe composed of detachable sections adapted to rest latwise in said package, the length of each section being substantially the same as the width of any said wall, together with a smoke pipe common to all the cubes,

^ and means for detachably uniting said cubes.

19. A knock-down stove composed of hollow cubes, one cube disposed in front of the other, in alinement therewith, each cube comprising one half of a combustion chamber and having the square walls thereof detachably secured together, whereby the flat knock-down package formed by taking the stove apartis Vsubstantially the same in size as any said wall, each cube having a perforatedbottom with space below, together with a smoke pipe'common to all the cubes, and means for Vdetachably uniting said cubes.

20. A cooking apparatus comprising a knock-down stove structure, said structure including cubical sub-units, forming a flat rectangular package when knocked down, including a fiat stove top, and a fiat rectangular container for said package, serving as a cooking pan when the apparatus is set up for use, means for detachably uniting the sub-units, together with a smoke pipe common to all said units. Y 21. A cooking apparatus comprising a knock-down stove structure, said structure including cubical sub-units, forming a flat rectangular package when knocked down, including a flat stove top, and a flat rectangular container for said package, serving as a-eooking pan when the apparatus is set up for use, said structure composed of horizontal and vertical wall sections, in addition to said top, all of which fit flatwise within said container, means Vfor detachably uniting the sub-units, together with a smoke pipe common toY all said units.

22.' A knock-down stove composed of hollow cubes, and a smoke pipe common'to all of said cubes, together with means for detachably uniting said cubes, said cubes being disposed in the same horizontal plane, and each cube comprising one half of a conibustion chamber, whereby the square tops of said cubes combine to form a flat stove top, each cube being open at one side only having the squarerwalls thereof detachably secured together, whereby the flat knockdown package formed by taking the stove apart is substantially the same in rectangularV area as any said wall.

23.*A knock-down stove lcomposed of hollow cubes, and a smoke pipe common to all of said cubes, together with means for detachably uniting said cubes, said cubes beingl disposedin the same horizontal plane, and each cube comprising one half of a combust-ion chamber, whereby the square tops of said cubes combine to form a flat stove top, each cube being open at one side only having Vthe square walls thereof detachably secured together, whereby the flat knock- 4down package formed by taking the stove apart is substantially the same in rectangular area as any said wall, each wall having an integral bolting flange at one or more edges thereof.

24. A knock-down stove composed of hollow cubes, and a smoke pipe common to all of said cubes, together with means for detachably uniting said cubes, said cubes being disposed in the same horizontal plane, and each cube comprising one half of a. combustion chamber, whereby the square tops of said cubes combine to form a flat stove top, each cube being open at one side only having the square walls thereof detachably se- Cured together, whereby the fiat knock-down package formed by taking the stove apart is substantially the same in rectangular area as any said wall, each cube having a single opening in the top thereof.

25. A knock-down stove composed of hollow cubes, and a smoke pipe common to all of said cubes, together with means for detachably uniting said cubes, said cubes being disposed in the same horizontal plane, and

each cube comprising one half of a combustion chamber, whereby the square tops of said cubes combine to form a fiat stove top, each cube being open at one side only having the square walls thereof detachably secured together, whereby the flat knock-down package formed by taking the stove apart is substantially the same in rectangular area as any said wall, said pipe composed of detachable sect-ions adapted to rest liatwise in said package, the length of each section being substantially the same as the width of any said wall.

26. A knock-down stove composed of hollow cubes, and a smoke pipe common to all of said cubes, together with means for detachably uniting said cubes, said cubes being disposed in the same horizontal plane, and each cube comprising one half of a combustion chamber, whereby the square tops of said cubes combine to form a flat stove top, each cube being open at one side only having the square walls thereof detachably secured together, whereby the flat knockdown package formed by taking the stove apart is substantially the same in rectangular area as any said wall, each cube having a perforated bottom with space below.

27. A cooking apparatus comprising a knock-down structure forming a fiat rectangular package when knocked down, including a flat stove top composed of separable sections, each section the same in size as said package, and a container for said package, serv.ng as a. cooking pan. when the apparatus is set up for use, said container being of less area than the said top, together with a smoke pipe common to all the sections, and means for detachably uniting the sections.

28. A cooking apparatus comprising a knock-down structure forming a flat recien gulai1 package when knocked down, ineluding a flat stove top composed of separable sections, each section the same in size as said package, and a Container for said package, serving as a cooking` pan when the apparatus is set up for use, said structure comprising horizontal and Vertical Wall sections, in addition to said top, all of which lit flat- 10 Wise Within said containei', said container being of less area than the said top, together with a smoke'pipe common to all the seotions, and means `for detachably uniting the sections.

Signed by me at Chicago, Illinois, this 13th day of June, 1912.

OLIVER C. KEMP. Witnesses:

GEO. F. SCHMIDT, HORACE V. CHAPMAN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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