US2383488A - Stove - Google Patents

Description

- Aug. 28, $03 45,

STOVE Filed Aug. '7, 1942 2 Sheets-Sheet 1 .QMW JDE EPhRJDH 8H [8 a). bilgm J F. JOY

Aug.- 28, 1945.

STOVE Filed Aug. 7, 1942 2 Sheets-Sheet 2 Patented Aug. 28, 1945 UNITED STATES PATENT OFFICE STOVE Joseph F. Joy, Claremont, N-H. Application August 7, 1942, Serial No. 453,925 6 Claims. (01. 12696) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) The invention described herein maybe manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to new and useful improvements in stoves and, more particularly, those used for military purposes.

It is the general object of this invention to provide a safe and convenient means for utilizing highly inflammable and vapor forming fluids as a' combustible medium.

A further object'is that of providing a flame control arrangement that will'permit quick and convenient lighting andcontrol of the volume of the flame, and also means for conveniently 'extinguishing the same.

A further object is to provide a'burner suitable for use with highly volatile liquidfuels so as to yield efiicient combustion and effective heating therefrom. 3

A still further object is that of providing the various embodiments with a form capable of inexpensive manufacture, convenient assembly and repair.

A still further object is to provide a stove capable of use for the many purposes required by military operations,

The exact nature of my invention as well as other objects and advantages thereof will clearly appear from a description of a preferred embodiment such as may be used for the warming of guns, particularly the recoil mechanism thereof, or heating the interior of tanks, truck cabs, troop carrying vehicles or housing facilities. This preferred embodiment is shown in the accompanying drawings in which:

Figure 1 is a vertical sectional view of the fuel containing, and burner section.

Figure 2 is a top plan view of the elements disclosed by Figure 1. I

Figure 3 shows a complete assembly of my new and improved stove.

An important feature of this invention is the means provided for the retention of the fuel and the method of feeding same to the burners. This consists in the main of a porous heat resisting, non-combustible, fuel absorbing element I, in-

closed within the body of the fuel container 2,

of Figure 1. Container 2, neatly fits upon and is held securely to the base 3, by latches 4. An upwardly extending annular section 5 of the fuel container 2 surrounds an aperture therein and to the annularsection 5 is secured the combustion drum 6, in which is-an adjustably mounted flame control plate I. The flame control plate I sonbing element;

- required for general heating purposes.

is provided with an upwardly extending annular projection 8, to which is secured a hinge lid 9, provided to permit of quick convenient lighting. Handles ID are provided, secured to flame con-. trol plate I for the purpose of adjusting plate I, vertically to and from wick section II of fuel retaining member I, for the purpose of flame regulation. Flame control plate! is supported in cam-like slots I2 formed in combustion drum 6 as a result of handles Ill, extending through spiral slots I2 of drum 6, and secured to flame control plate I. It is obvious that circular movement of handles In with respect to combustion chamber 6 will cause flame control plate I to ascend or descend according to the direction of movement in slots I2. Air slots I3 of the proper size to afford complete combustion for the burning fuel are provided in the base of combustion chamber 6, and similar slots I 4 are provided in the base of the flame control plate for permitting the flames of combustion toarise therethrough to the upper or heating cavity of the stove. Handles I are attached, one to each side of base member 2 for the convenient handling of the stove when it is being used without heat chamber l6 and dome IT. Receptacle IS with lid I9 provides a quick and convenient means for introducing and replenishing fuel required for the operation of the stove. Supplementary handles 20 are provided, one at each side of dome section N, Fig, 3, for convenient handling of the stove when assembled in its entirety such as may be Door 2| is provided and hinged to member I6 to permit of convenient lighting of the flame at wick H through lid 9.

Returning again to Fig. '1 fuel absorbing element I is a porous, coherent mass such as is common to non-combustible insulating material includinginsulating fire brick, molded asbestos, magnesia, and the like. Fuel is poured into the base of the stove through inlet I8 and is taken up by absorbing element I and transmitted through principles of capillary attraction to wick section II of element I. It should be noted that spacing indentions 22 have been provided in the fuel container to space the fuel absorbing element I from metallic surfaces which might conduct heat downwardly from the flame. Such spacing allows the fuel to proceed to the wick section by capillary attraction without undue volatilization due to surface heating of the ab- A highly desirable-characteristic in stoves used for military purposes is that of allowing for the passage of a bullet through the fuel containing portion without causing spillage of combustible and inflammable fluids therefrom. It is obvious that I have met this requirement by absorbing the fluid fuel into an arrangement capable of the retention of the liquid, even though the element may become broken into many parts. It is furthermore obvious that a stove of the construction herein set forth may be upset or jolted about without in anywise causing spillage of combustible fluid therefrom or danger of imparting its flame to surrounding combustible material as a result of the rough handling such as it may need to meet when used for military purposes. It is obvious that the por tion of the stove as disclosed -.by the Figures 1 and 2 may be conveniently and safely inclosed within suitable cavities attached to and provided for the purposes of Warming guns, particularly the recoil mechanism thereof, and furthermore used as a general purpose cooking and warming stove for camp use. The embodiment disclosed in Fig. 3 is provided for the purposes of utilizing this invention as a safe form of stove for gen-- eral warming purposes in tents, truck cabs, tank inclosures, troop carrying vehicles, or housing facilities.

While the invention has been described herein with particular reference to its military applications it should be 'understood that similar embodiments of the invention may be applied to other purposes in civil activities and that changes and variations may be made in the elements thereof without departing from the spirit of the invention as described in the appended claims.

I claim:

1. A liquid fuel burner comprising a wick of coherent, porous, refractory material, a combustion drum surrounding said wick, air slots in the combustion drum, a flame control plate adjustably mounted for vertical movement in said combustion drum above said wick, flame slots in said control plate, and a hood carried by said control plate adapted to enclose a portion of said wick as said control plate is lowered whereby the flame may be regulated.

2. A liquid fuel burner comprising a fuel container having an opening therein, a fixed wick member protruding from said opening, a drum secured to said container and extending upwardly therefrom, air slots in the lower portion of said drum, a flame control plate vertically slidable in said drum above said wick, flame slots in said control plate, and a hood on said control plate and adapted to progressively enclose said wick as said plate is adjusted downwardly, whereby the flame may be regulated.

3. A liquid fuel burner as described in claim 2, and a lid on said hood allowing access to said wick for lighting the same.

4. A liquid fuel burner as described in claim 2, said wick member comprising a coherent body of a porous refractory material, and a fuel absorbing element integral with said wick member substantially completely filling said fuel container. I

5. A liquid fuel burner comprising a fuel chamber having a central opening in its top, a comlbustion drum above said chamber and having air inlet openings in its bottom, an' adjustable flame control plate in said drum having air slots therein and a hollow cylindrical extension centrally located thereon, a fuel absorbent element in the fuel chamber and having a protuberance forming a wick extending above said chamber and into said combustion drum in axial alignment with said cylindrical extension, a cover on said extension which with the walls of the extension form a hood adapted to progressively inclose said wick as said plate is adjusted downwardly, whereby the flame may be regulated.

6. The invention of claim 5 characterizedin that the air slots in the flame control plate are radially arranged with respect to the hollow cylindrical portion.

JOSEPH F. JOY.

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