US1561672A - Stove - Google Patents

Description

Nov. 17, 1925. 1,561,672

H. W. STRONG STOVE 2 Sheets-Sheet 1 Filed March 2, 1925 3 26 Wm VENTOR 6 BY /%/27 3577447; I r A TTORNEY Nov. 17, 1925- 1,561,672

H. W. STRONG STOVE Filed March 2. 1925 2 Sheets-Sheet 2 I lzldd INVENTOR ATTORNEY 'vide the necessary heat.

1 a combustible mixture.

. in a collapsed,

the mixing Patented Nov. 17, 1925.

UNITED STATES PATENT HIBAM W. STRONG, OF WICHITA, KANSAS, ASSIGNOR TO COLmAN A CORPORATION OF ANSAS.

OF WICEITA, KANSAS,

STOVE.

Application filed March 2,

To all whom it may concern:

, Be it known that I, HIRAM XV. STRONG, a citizen of the United States, residing at Wichita, in the county of Sedgwick and State of Kansas, have invented certain new and useful Improvements in Stoves; and I do declare the following to be a full, vclear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use.the same, reference being had to the accompanying rawings, and to the figures of, reference marked thereon, which form a part of this application. 1 f V This invention relates to collapsible stoves of that general class known as camp stoves. he primary object of theinvention is to provide a camp stove in which burners are located. Such stoves require reservoirs or tanks for containing the liquid fuel content or the mixture which is combusted to pro- Ordinarily the liquid consists of gasoline or high grade hydro-carbon oil. For the purpose of safety the tank or reservoir is maintained outside the case of the stove during the time that the burners are operating, the tank being contained within the case when the stove is portable condition.

In some constructions the tank is afranged as part of a rigid unit which includes the vaporizing tube located above one of the burners when the stove is operatin The vaporizing tube aligns with and usua y projects into the mixing chamber where the vaporized oil and air are mixed to provide The construction of the stoves-now on the market is such that the opening through which the vaporizing tube projects is con siderably lar er than the tube and since this openingis a jacentto the burner the flame from the burner is frequently drawn into the mixing chamber so that the combustible mixture starts to burn in advance of or before it reaches the burners.

y invention contemplates the provision of a bafie interposed at all times between the burner and the vapor inlet openin of chamber so that liability ogthe flame entering the-mixing chamber will be i 7 ,vention which will i entirely eliminated. i

There are other novel features of'my inbecomeflapperent as the the t throngh surroundin that the (contents OFFICE.

LAMP COMPANY,

1925. Serial No. 12,750.

in which Fig. 1 is a p with the hinged to illustrate the to the mixing ch ank is inside the case. Fig. 2 IS a s1m11 outside the case.

erspective view of a stove lid of the case thrown'back position of the tank, the

vapor tube and the bafile plate with respect amber and the burner when ar view showing the tank 05 Fig is a perspective view of the tank Fig.4 is as Fig. G is a The case 1 is is provided with g the closed. The grid or grate 3 h lie over th crating. The which may se edge of the li back it may con may be swun the lid when 9' a the e case carri which are in th longitudinal the priming cup, and

F193 7 isa simil ino chamber and case is also vaporizing tube and battle with the connections therebetween, unit.

all formed in a rigid ectional view through the through the the vaporview showing the bafie in n tube over the N sectional view.

- ar view through the mixthe manifold shown as rectangular and a lid Qto fit over the edge top opening of the case so of the case mav be enprovided with a inged thereto so that it may e burners when the stove is oplid is provided with rve as a support for the free so that a bail 4 so when the lid is swung stitute a table. The bail 4% round to the inside. face of lid is closed down. y es two sets 5 and 6 of legs e form of bails adapted to be swung into lid overlapping position when the stove iscollapsed to position with respect to the case.

the case [is a nal of the case mixing chamber 7 h vapor inlet opening or "inlet opening 9. communicates with a hold the lid in fixed Within aving a port 8 and an air The mixing chamber '1 manifold 10 longitudiand having burners l1 and 12 at its respective ends.

To the side of the manifold and preferably integral therewith is a priming cup 13 time surround p'eferably having an air opening 14 in its '23 which may 15. The priming cup has a curved rear wall 16 with a depending wall 17 integral therewith and integral with the mixing chamber. since it constitutes part of the front wall of the mixing chamber. The front wall '17 is provided with a liquid receiving opening 18 so that liquid can be introduced against the rear wall 16 and flow over the bottom to be ignited when mixed with air passing over the opening 14: to make a combustible mixture to heat the vapor generating tube 19. The vapor generating tube 19 is in communication with the fuel tank 20 through the medium of a pipe 21, there being a valve 22 at the juncture of the vaporizing tube 19 with the pipe 21 controlled by avalve stem be actuated by a suitable key 24 preferably secured to the arm 25 by a chain 26. v Y

The arm 25 is fastened rigidly to the reservoir or tank 20 and to the vaporizing tube 19; The opposite end of the vaporizing tube is rigidly secured to a baffle plate 27 which in turn is supported to the reservoir 20 through the medium of the brace arm 28 fastened to the bracket 29, shown as a continuation or projection extending away from the plate 27.

The baflie plate 27 is provided with an aruate slot 30, receiving a pin 31, on the front face of the mixing chamber 7 and there is alug 32 projecting upwardly but spaced 1 from the depending wall 17 of the mixing chamber to serve as, a guide and resist lateral play of the baffle plate 27. v j

I The opening18 is slightly higher than and to one side of the opening 8, therefore when the bafile 27 is moved in one direction the pin 31 in the arcuate slot will cause the plate to rise so that the vaporizing or generating tube 19 will be in line with the opening 8 but will not project into it, this being unnecessary since the baflle plate 27 lies flush against the mixing chamberso that when the generating tube 19 registers with either of the openings 8 or 18 vapor will be directed straight through.

Since t 1s desired to raise the plate 27 when the generator tube 19 is brought into alignment with the opening 18 the bottom of the plate 27 is formed in the shape of a cam as indicated at 33. 9 The high lobe 34 of the cam resting against the curved portion 35 of the lug 32 when the baille plate is in position toregister the vaporizing tube 19 with the opening 8.

Attention is called to the fact that the tank 20, the rigid connections (that is the arms 25 and 28) carrying the vaporizing tube 19 and the baffle plate 27 are all formed into a rigid unitary structure which is removable from the case so that when the notch 36 in arm 25 engages the edge 37 of the case the vaporizing tube or generator 19 will be in line with the priming cup opening 18, then if the valve stem 23 is turned, cold liquid will flow it maybe ignited to heat the tube 19. WVith this arrangement the priming cup is filled after the tank is' positioned, thereby avoid ing the danger incident to preliminary pri1ning. When the unit is shifted so that the notch 38 receives the edge 37 of the case 1 then the vaporizing tube 19 will be in line with the opening 8 and directly over the burner 12 so that thereafter the burner 12 will maintain the tube 19 hot enough to generate the fuel into vapor. It is understood, of course, that in this type of stove the tank 20 has air pressure to force the liquid through the pipe 21 to the generator tube 19, and attention is called to the fact that the end of the generator tube, or the stem 23, operates in a slot 39 in one end of the case 1 so that the key 24 can be applied for turning it, but it is obvious that the stem need not project through the slot since the key could be inserted far enough through the opening in theend wall of the case to turn the stem.

It will be obvious from the fore-going that the device is compact, simple to set up an knock down as expediency may dictate.

"What I claim and desire to secure by Letters-Patent is:

L'A stove comprising a case, having a eover, a mixing chamber carried by the bottom of the case having an air inlet opening and a fuel vapor inlet opening, a burner in communication with the mixing chamber, and'a preheater adjacent to the mixing chamber, having a vapor inlet in combination with a unit, comprising a tank, a vaporizer rigidly connected thereto and a flame bafiie rigid with the vaporizer, the unit being normally within the case but removable therefrom and shiftable to two positions, one to bring the end of the vaporizer into line with the vapor inlet in the mixing chamber and the other to bring the end of the vaporizer into line with the inlet to the preheater, the battle being in close parallelism with the mixing chamber.

2. A stove comprising a case, having a cover, a mixing chamber carried by the bottom of the case having an air inlet opening and a fuel vapor inlet opening, a burner in communication with the mixing chamber and a preheater adjacent to the mixing chamber, having a vapor inlet, in combination with a removable unit within the case, the unit comprising a tank, a vaporizer rigidly connected thereto and a flame baflle rigid with the vaporizer, the unit, when the tank is outside the case, being shiftable into the priming cup wheretransversely of the case to bring the vaporhaving an air inlet opening and a fuel va or inlet opening, a burner in communication with the mixing chamber, a preheater ad .mixing chamber, the vaporizer and battle being movable transversely of the case, and means for guiding the baflie to allgn the vaporizer tube with either of the two vapor inlet openings.

4. A. stove comprising a case, a mixing chamber carried by the case, having an air inlet opening and a vapor inlet opening, a preheater adjacent to the mixing chamher having a fuel inlet opening spaced from and out of horizontal alignment with the first inlet opening, the mixlng chamber having a flat face, a burner in communication with the mixing chamber, a flat plat'e parallel with the flat face of the mixing chamber, a fuel supply means carried by the plate, and means for guiding the plate into position to align with either of the inlets.

5. A stove comprising a case, a mixing chamber carried by the ease, having an air inlet opening and a vapor inlet opening, a preheater adjacent to the mixing chamber having a fuel inlet opening spaced from and out of horizontal alignment vith the first inlet opening, the mixing chamber having a flat face, a burner in communication with the mixing chamber, a fiat plate parallel with the flat face of the mixing chamber, a fuel supply means carried by the plate, and means for guiding the plate into position to align with either of the inlets, said means comprising a pin on the mixing chamber passing through a slot in the plate.

6. In a stove, a mixing chamber having an air inlet and a vapor inlet, a preheater having a fuel inlet in spaced relation to the vapor inlet, a burner in communication with the mixing chamber, a lug parallel with but spaced from the mixing chamber, a baflle plate between the burner and the inlets to the mixing chamber and the preheater, slidahle in the space between the guide lug and the mixer, and a hydro-carbon fuel tube discharging through the plate, the plate having movement to register the tube with either inlet openin 7. A stove comprising a mixing chamber, having a hydro-carbon fuel inlet port and an air port, a burner communicating with the mixing chamber, a flat baffle plate between the burner and the mixing chamber, and a vaporizing tube carried by the plate, having its discharge end movable into and out of line with the inlet.

8. A stove comprising a mixing chamber. having a hydro-carbon fuel inlet port and an air port, a burner connnunicating with the mixing chamber, a fiat baffle plate between the burner and the mixing chamber, a vaporizing tube carried by the plate, having its discharge end movable into and out of line with the inlet, and a pin on the 1nixing chamber passing through a slot in the plate.

9. A stove comprising a mixing chamber having a hydro-carbon inlet opening, a burner communicating with the inlet opening, a baflle plate having an opening movable into and out of line with the inlet open ing, and a hydro-carbon supply tube secured to the plate and registeringwith the opening therein when the plate is in one position, the tube being out of register with the opening when the plate is in another position.

10. A stove comprising a casing, a mixing chamber in the casing, a burner communicating with the mixing chamber, the mixing chamber having a wall provided with a hydro-carbon inlet port, a removable unit within the casing, comprising a liquid tank, a vaporizer tube, a baffle plate fastened to the tube and two rigid connections, one between the vaporizer and the tank and the other between the baflie plate and the tank. the unit being movable into functional position so that the rigid connections rest upon the edge of the casing, said unit being shiftable into one position to bring the vaporizer in line with the inlet to the mixing chamberand shiftableinto another position to bring the vaporizer out of line with the inlet to the mixing chamber.

In testimony whereof I afiix my signature.

HIRAM W. STRONG.

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