US2229555A - Self-feeding cook stove - Google Patents

Description

Jan. 21, 19M. 1 D TNELL V 2,229,555

SELF-FEEDING COOK STOVE Filed March 6, 1939 'HHIIHI'IIIH llllllllll Hlll I Patented Jan. 21, 1941 SELF-FEEDIN G COOK STOVE Albert Dartnell, East Kildonan, Manitoba,

Canad Application March 6,

1 Claim.

This invention relates to improvements in self feeding cook stoves, an object of the invention being to provide a device of the character herewithin described by the use of which a charge of fuel sufiicient (according to weather conditions) to last a considerable time is simply deposited into a hopper gravitating downwardly therewithin to become ignited at the base and supply heat through an associated fire passage to travel around the adjacent oven of the cook stove. a

A further object of this invention is to provide a self-feeding cook stove of the character herewithin described which may be heated by lignite coal and whereby considerable economy may be effected.

With the above more important objects in view and such other minor objects as may appear as the specification proceeds, this invention consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawing, in which:

Figure 1 is a sectional elevation of a cook stove 25 in which my self-feeder and fire box is shown integral therewith.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure 3 is ,a plan view of my replaceable di-,

30 viding wall.

In the drawing like characters of reference indicate corresponding parts in the different figures.

In the accompanying drawing I have illus- 35 trated a cook stove in which a soft fuel selffeeder 35 is formed integral with the body thereof and occupies the position usually occupied by the conventional fire box. From Figure 1 of this drawing it will be seen that a set of inclined grates 36 in the form of a set of parallel fingers are provided at the base of the hopper 31 of the self-feeder. The horizontal grates 38 upon which coal in the hopper rests also take the form of a set of parallel fingers and both sets of grates .are of course, secured to the side Walls 39 in any suitable manner.

It will also be noted that I provide a partition or inclining partial wall 40 of the cross-sectional configuration clearly illustrated, through which the products of combustion pass from the fire zone 4| and I also provide a partial dividing wall 42 of which the lower part is inclined as clearly illustrated to separate the hopper from the combustion chamber 43, a portion of this wall ex- 1939, Serial No. 260,185

tending parallel with the wall 40 and being removable and replaceable.

The member 42 obviously extends from front to back of the cook stove, being secured to the front and rear walls in any suitable manner and from the accompanying drawings, it will be seen that a row of apertures 44 are provided along the length of the thickened portion 45 of this member, through which air is drawn to intensify further the heat from the fire zone.

If necessary, a shoe 46 may be provided at the position indicated upon the casing A of the oven B, as this particular area is subjected to very intense heat, it will be understood that the products of combustion travel around the oven, along the horizontal and vertical heat jackets C and finally are carried off through the smoke pipe exit aperture D upon the rear wall E of the cook stove.

It should finally be mentioned that below the ,ho-pper, and spaced therefrom is a horizontal plate 5i constituting the top of an ash compartment 52, this member being provided with a suitable ash hole 53, through which ash may gravitate into the pan 54, from a fire box 55 represented by the space between the grates .38 and the plate 5|, the whole foregoing structure being mounted upon the usual legs 55.

It is to be understood that in the operation of my self-feeding cook stove coals or lignite with which the hopper 31 should be filled to the top, gravitates downwardly and becomes ignited in the inclining fire passage 51, the products of combustion travelling upwardly therethrough from the fire zone. It should also be remarked that the row of apertures 44 ,are designed to permit the introduction of air which mixes with the gases from the coal or lignite to create carbonic acid gas which further intensifies the heat of the products of combustion emerging from the fire passage 51.

Since various modifications can be made in the above invention, and many apparently widely different embodiments of same, made within the scope of the claims without departing from the spirit and scope thereof, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in .a limiting sense and I desire only such limitations placed thereon as are specifically expressed in the accompanying claim.

What I claim as my invention is:

In a cooking stove including the usual oven, horizontal heated cover plate, ,and heat jacket extending around said oven, a fuel self-feeder integral therewith comprising a hopper, a fire box therebelow, said self-feeder being positioned to one side of said stove in the position usually occupied by the conventional fire box thereof, a set of grates at the base of said hopper, .a partial Wall dividing said hopper from the remaining part of said stove, the lower part of said wall being inclined and with the lower edge thereof spaced from and horizontally parallel with said 10 grate to provide a fire and discharge aperture

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