US1656480A - Camp stove - Google Patents

Description

Jan. 17, 1928.

1,656,480 L.v B. GOLDBERG ET AL CAMP S TOVE Filed March 5. 1927 Patented Jan. 17, 1928.

UNITED STATES LOUIS IB. GOLDBERG,

NATHAN GOLDBERG, WILLIAM GOLDBERG, AND JACOB M.

GOLDBERG, OF DENVER, COLORADO,

` .CAMP srovn.

Application area March 3, 1927. serial No. 172,303.

rThis `invention relates to improvements in the construction ot gasoline vapor stoves oit the type sometimes referred to as camp stoves.

Automobile tourists, hunters, tlsherinen and others who camp lind it a great convenience to be able to dispense with the old fashioned camp tires for cooking and to cinploy instead a stove that can be conveniently packed tor transportation and which cniploys gasoline as fuel.

vIt is the object otthis invention to produce a gasoline vapor stove that shall be so constructed that it can conveniently folded into a small package tor transportation and which shall be ol simple substantial. construction.

The above enumerated objects and other-s that may become apparent as this description proceeds arc attained by means ot' a construction and arrangement ot parts that will now be described in detail and reference for this purpose will be had tothe accompanying drawing iniwhich the. present pre- `terred embodiment has been illustrated and in which:

Fig. 1 is a top plan view showing` the stove in operative position, a portion ot the grate `being broken away to better disclose the construction;` y

Fig. 2 is a section taken on line 2 2, Fig. 1, parts being shown broken away and the inoperative position ot' the tank shown by dot and dash lines;

Fig. 3 isa fragmentary section taken on l line 3 3. Fig. 1; y

Fig. 4t is a. section taken on line ea, Fig. 1 and shows a portion ot' the primingdevice; and j Fig. 5 is a section taken on line 5 5, Fig. 3, and shows the constructionoit the valve.

Numeral 1 represents the bottom ot thc casing 2 and 3 the'ends, 4 and 5 the sides, and 6 the cover, while the grate is rcpresented by numeral 7. Secured to thc bottorn 1 is a burner assembly comprising a manifold 8, two burners 9 and v10 and a mixing chamber' 11. The burner assembly is supported by two M-shaped brackets having feet 12, which are perforated for the reception ot' rivets 13, Clips 14 aresecured to the vertical end portions of the brackets and have their upper ends bent over onto the burners in the manner shown in Figs. 1 and 0 A `strap extends over the manifold and has its ends secured to the brackets. By the means just described, the burners are securely fastened to the bottom. y

Secured to the underside ot' the burner 9 is a `bracket 16 'formed from a U-shaped strip ot metal whosetwo sides areL spaced apart as shown in Fig. 3` and whose extreme ends 17 are spot welded or otherwise secured to the burner v9. The spaced vertical sides are perforated for thereception oitthe generator tube 18. An L-shaped bracket 19 fis secured tothe underside of the burner 1Q and has a vertical portion 20 which is perforated for the reception ot the pin 21.

The fuel is contained in a 4cylindrical tank 22. Secured to one end of this tank is a rigid pipe 23, which is connected with the generator tube 1S by means of an L 24 which also forms the body ot a valve, the rotatable stein ot which has been designated by numeral l25. The stein is hinged at`26 and lis provided at its outer end with a knob 27. lVhen the stove is not in use, the stern is bent in the manner indicated by dotted lines in Fig. 1. A rod, 28 is secured to the other end ot the tank 22 and extends therefrom in a direction parallel with the tube 23. The end otithis rod is provided with a pin 21 which entends through an opening in `the bracket 2() (Fig. 3). It is now apparent that the tank 22 can be rotated about the common aXis ot the generator tube18 and the pin 21 from the position indicated by full lines to the position indicated by dotted lines in Fig. 2. The burner assembly islocated to one side otthe center ot the casing so that when ythe stove is in use, it` will occupythe lull line position shown in Fig. 2 and when the stove .is inoperative, the tank occupies the dotted line position. The upper edge of side t is provided with notches 29 and 30 for the reception, respectively, ot the tube 23 and the rod 28.

It will be observed thatv the top `oit each l of the burners has `a cent al depression 81. The depression in burner 9 serves as a priming cup into which a quantity of gasoline is deposited and ignited. tor the purpose-,ot

heating the generator tube 18, which is located directly over tlns depression.

In order to conveniently convey gasoline from the tank 22 to the priming cup in the burner 9 we have )rovided the tank with a pipe 32 which yextends trom the outlet cfa valve 83, whose inlet is connected fwith `the Ui A pipe 34 that extends downwardly Within the tank and terminates near the bottom thereo't. Pipe 32 terminates adj aeent the burner 9 and has pivotally attached to it a small metal trough 34. This trough can oocupythe position shown in full lines in Fig. #l and can also be turned up into the dotted line position. Then gasoline is to be transterredtrom the tank to the priming cup, the trough is moved into the position shown in Figs. 1 and i and valve 33 opened; gasoline will now tlovv from the tank 22 through pipe 32 into the trough 3ft and thence into `the priming cup l. Vhen suiiieient 'gasoline has been transferred tothe priming cup, valve 33 is closed and the trough turnedup into dotted line position (Fig. 4). rlhe gasoline isnow` ignited and raises the temperature oi the generator tubelS to sueli anv extent that when the valve 24 is opened, the gasoline Willybe vaporized so that it will enter the iiiixiiigcliaii'iber llas a gas and will becomemixed with air so as to torni a Combustiblemixture that will pass through the manifold S andinto the burners. Afterthe, generation of gas hascommencech thepgas that emerges through the openings in the 'top ot lnirncr` 9 4will be ignited andthe llame will keep the temperature oi" the generator tube 1S sutiiciently high to maintain the gas supply. At this point attention is et lled to the tact that the tank 22 contains air under pressure as Well as gasoline and that this air tends "to` 'toreo the gasoline outwardly from the tank.

The stove has been shown as provided with tivo burners, one being att-ached to each end ot' theintale manifold 8. Itsometimes l'happens that only a single burneris needed and a valve has there'ore beenqprovided for controlling the flow of gas to burner l0. This valve is formed by a thimble lilreinember 35, which is seeu1e`clivitliin`tlie manifold between the mixing chamber ll and the burner 10. This thimblehas its bottom provided with an opening 36. The end ot the manifold beyond the thimble 35 has a closure `formed by two interconnected "cupshaped members 37 and Btivhosebottoms are perforated `for the reception ot the Vvalve stem 39, which `is slidable and which kis guided in its movements by the members 3T and 38. Seeuredto the Vinner end ot the stem 39 is a cup-like metalmember 40, whose sides have a slight taper. Member Ll() `is ofsueh size that its smaller end will enter opening 36 but its larger end will not.

VVhenthe stem 39 ismoved towards the lett (Fig. 5) lthe opening 364can be restricted or Closed entirely. The gradual taper ot the cup 40 permits iine adjustments to be made and also serves to produce the necessary friotioirto hold the valve in closed position. An'eictension 4:1 is pivotally attaehedto the end of the valve stem at ft2 and this can be moved from full line to dottedlineposition (Fig. l) and vice versa, aslot 43 being provided in the end 2 ior this purpose.

Tank 22 is provided with a lill opening that is closed by a screw (plug 43', which is also provided with a central opening 411,

through which air may be pumped into the tank. As the construct-ion of plugwi is old and well known, it will not be described in detail. i

The novel features oit this stove are bclieved to resido in the structure which permits the tank E22 to be rotated about a lined pivot, `from a position,` such as shown in Figs. l and 2, where the tank lies outside ot the casing to the dotted line position, shown in Fig. 2. nVv'heu the stove is to be transported the tank is positioned within the easing where it will be protected against injury. Vt'hen the stove is to be used, the eovcr t3 is tirst opened, then the grate 7 is raised, atter which the tank is rotated from dotted toytull line position (Fig. 2), after which the grate is lowered to its operative position. The trough 34' is now adjustedto the lull line position (Fig. Lt), after which valve 33 is opened for the purpose ot allowing gasoline to How into the priming cup in burner lVhen sultieient gasoline has been transferred to thepriining cup, valve 33 is closed and the trough turned up into dot ted line position (Fig. et). The vaseline is now ignited and the :llame heats the gener tor tube 18. When the gasoline has been nearly consumed, valve 27 is opened thereby allowing gasoline' to iiow through `the tube 1S and become vaporized.

Special attention is called yto the means employed :tor transferring gasoline troni the tank to the priming cup and especially to the trough that eau be moved away from the thune when not in use. The speeilie arrangement illustrated is merely illustrative of a priming device ior transferring gasoline from thetanl; to the 'priming cup and which eoniprises means nu able fnith respect to the burner and priming cup.

y A baille plate Li5 is provided between the burner 9 and the valve Q-i to protect the latter iron'rthe heat.

" It is apparent that the valve stein 25 will not be rotated the `same amount every time the valve is elosed and the pivotal eonnec tion 26 is therefore formed from two interconnected eyes so that the outer end ot the stem Willhave a universal movement with respect to thepart that isiastened to the stem; this permits the lrnob to hang downwardly at all times.`

It is obvious that if the burner vassemlily is secured tothe bottom l insueh a way that it eau slide towards the side 1, that the casing can be made narrower than when the feet 1&2 are rivet-ed to the bottoinin the manner shown `as such aconstruction permits the burner assembly to be moved towards the llll side 4 when the stove is folded for transportation. v

In Fig. 5 the preferred construction of the valve mechanism has been illustrated and has been described above. Special attention is directed at this point to the fact that an asbestos washer is located between members 37 and 28. This washer serves two purposes, in the first place it acts as a gasket and prevents the escape of combustible vapor at this point and in the second place it acts as a lubi'icator. lVhen gasoline containing vapors come in contact with the washer they conw dense and the gasoline is absorbed and soon accumulates to such an extent that a film of gasoline will be deposited on the stem 39 when it is moved and this prevents the stem from rusting.

Having described the invention, what is claimed as new is:

l. In a camp stove, a casing member, a burner assembly, a fuel tank having a gen eratoi tube, a bracket secured to one end of vthe burner assembly, said bracket having an opening through which the tube extends and iii which it may be rotated soas to enable the tank to be swung to a position wholly within or without the casing.

2. In a camp stove, in combination, a casing member, a burner assembly secured to the casing member, a perforated bracket secured to each end of the buiiier assembly, a fuel tank, a pipe secured to one end of said tank, a generator' tube extending through one of said perforated brackets, an Lconnecting said pipe and generator tube, a rigid member connecting the other end of the tank tothe other perforated bracket and a pivotal con nection between said rigid member and the bracket.

3. In a camp stove, a. casing member, a burner assembly located within the casing and secured thereto, a fuel tank having a vaporizer tube rigidly connected thereto and extending substantially parallel therewith, a rigid bar secured to the other end of said tank, said bar having a pin Whose axis is substantially parallel with the axis of the tank and means comprising two perforated brackets, rigidly secured to the burner assembly for providing a hinged connection whereby the tank may be rotated about the axis of the generator tube from a position without the casing to a position within the casino.

4. In a camp stove, a casing member, a burner assembly rigidly secured therein, said assembly having two burners, a fuel tank, a generator tube extending pa allel with the axis of the fuel tank, said generator tube lying above one of said burners, means for rotatably connecting` the generator tube with the burner, means comprising arigid link for pivotally connecting' the other end of the tank with the other burner, the burner underneath the generator tube having a priming cup and means for transferring fuel from the interior of the tank to the priming cup.`

5. In a. camp stove, a casing member, a burner assembly rigidly secured therein, said assembly having two burners, a fuel tank, a generator tube extending parallel with Jthe axis of the fuel tank, said generator tube lying above one of said burners, means for rotatably connecting the generator tube with the burner, means comprising a rigid link for pivotally connecting the other end of the tank with the other burner, the burner underneath the generator tube having a prim ing cup and means for transferring fuel from the interior of the tank to the priming cup, said last named means comprising a valve controlled pipe which extends from a point within the tank to a point adjacent the burner and a movable extension pivotally se-` cured to the outer end of said pipe.

In testimony whereof we aflix our signatures.

LOUIS B. GOLDBERG. NATHAN GOLDBERG. VILLIAM GOLDBERG. JACB M. GOLDBERG.

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