US2153106A - Stove - Google Patents

Description

' J. E. TAYLOR April 4, 1939.

STOVE 2 Sheets-Sheet l Filed April 5, 1938 Inventor Attorneys April 1939- J. E. TAYLOR 2,153,106

STOVE Filed April 5, 1938 2 Sheets-Sheet 2 In ventor [.5 ZZj/OP A iiorneys Patented Apr. 4, 1939 UNITED STATES PATENT OFFICE 7 Claims.

This invention relates to a stove or heater, and an object of the invention is to provide a stove or heater so constructed as to burn sawdust, a mixture of sawdust and oil, or sawdust and other 5 combustible material, or other materials alone or in combination with each other.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein:

Figure l is a vertical sectional view through the stove or heater.

Figures 2 and 3 are horizontal sectional views taken substantially on the lines 22 and 33 respectively of Fig. 1.

Referring to the drawings by reference numer als it will be seen that the stove or heater, in the preferred embodiment thereof comprises a substantially frusto conical casing or drum 5 provided adjacent the bottom thereof with an internal ledge or shoulder S that support a false bottom l of annular form and having a central opening I so that ashes can fall through into ash pit 5. Below the false bottom I the drum or casing 5 presents an ash pit 8 to which access is had through the medium of a door 9. Door 9 is provided with a suitable damper indicated generally by the reference numeral to control the 9 draft.

Disposed above the false bottom 1 and suitably spaced upwardly therefrom is a conical bafile II that is provided on the lower endof a tubular conduit i2. 35 The tubular conduit I2 at the upper end thereof is provided withretention hooks it which engage over the upper end of a perforated tubular conduit 54 that is of greater diameter than the tube l2 and is disposed circumjacent the tube l2 as shown.

Conduits l2 and M are retained in suitably spaced relation through the medium of upper and lower series of lugs l provided on the periphery oi the conduit l2 as shown.

The conduit M is disposed at the axial center of the casing 5 and at its lower end terminates short of the conduit l2 and is provided with an integral conical baiiie lfithat is spaced vertically from the conical baffle H as shown.

The conduit M serves as a retainer for the lid ll provided for the top of the casing 5 through the medium of radially extending lugs 58 that project from the upper end of the conduit I l and engage a reversely curved vertically disposed flange l9 provided at the edge of the lid I! defining an opening 20 through which the upper end of the conduit I4 extends.

The conduit l2 and associated parts are also supported within the casing 5 through the medium of hanger brackets 2| that at one end are riveted or otherwise secured to the cone II and at the upper end are provided with hooks 22 that engage an internal ledge 23 provided on the peripheral wall of the casing or drum 5 as clearly shown in Figs. 1 and 3.

Obviously the conduit l2 serves as a flue for the escape of smoke and gases while the conduit it serves as a conduit for the escape of gas, the gas passing into the space between the battles II and i5, and between the flue l2 and conduit l4 to discharge at the top of the conduit I 4. Hooks it are pressed inwardly toward the flue tube [2 to clear the upper edge of the tube [4 when it is desired to remove the tube from the casing 5, tube I4 and its associated conical baffle l6 being removable, or withdrawable from the casing 5 at the top of the latter upon removal of the cover or lid ll.

Also the flange l9 rimming the opening 20 in the lid ii is provided at diametrically opposite sides thereof with slots 2'4 so that when it is desired to remove the lid or place the lid on the casing 5 without disturbing the conduits l2 and I 4' said lid is rotated so as to align the slots 24 with the lugs I8 whereupon the lid may then be shifted axially relative to the tube l4 incidental to the placing of the lid on the casing 5 or the removal of the lid therefrom.

In connection with the above it will be noted that the lower edge of the bafile l6 rests on the suspension brackets 2! so that these brackets serve to support bafile l5 and associate tube I4 independently of the lid l1 permitting removal or placement of the lid without disturbing the position of the tube M and its integral baflle I6;

The lid I? has rising therefrom a substantially conical stack 25 the upper end of which merges into a substantially cylindrical extension 26. Preferably lid ll and stack 25 are mutually separable so that the stack 25 may be removed without disturbing the lid ll, stack 25 positioned on the lid ll merely resting thereon without positive connection with the lid.

The lid I! is also provided with any desired number of apertures 27 in order that a poker may be inserted through a selected opening and into the drum or casing 5 for agitating or disturbing the fuel 28 within the casing in a manner to insure a feeding of the fuel, by gravity, toward the bottom Tof the stove or heater.

The perforations in the sleeve or tube I4 serve to facilitate the passage of accumulated gases into the space between sleeve or conduit I4 and the sleeve or flue I2.

For the purpose of facilitating combustion within the stack 25 the latter is provided with upper and lower series of perforations 29 and 38 as shown.

The utility and advantages of the invention will be apparent from the following:

The fuel, if a mixture of fuels, is prepared beforehand. The stack 25 is lifted aside after which the top I? is rotated until the slots 24 in the flange I 9 are in alignment with the lugs I8 when the lid I! is then removed from the casing or top 5. The fuel is then placed into the casing, filling the space between a wall of the casing and the conduit or sleeve I4, after which the top or lid I1 is replaced.

As shown inFig. 1, the fuel will pile up on the bottom I and between the outer edges of the baffie cone II, I6 and the peripheral wall of the casing or drop 5. Ignition, by means of a torch, match or lighted paper is produced on the surface of the fuel resting on the false bottom I. The draft is regulated by the damper Ill, and after combustion has proceeded for some minutes the bafiles I I and I6 and flue I2 together with the fuel adjacent to the baffles II and It as well as the fuel on the false bottom I will become intensely hot. When a sufficient heat has been obtained, the air intake through the damper I0 is decreased so that the fire in the fire bo-x 3| provided beneath the cone or baflie II is only sufficiently active to keep that area hot. This lessens the combustion in the fire box 3! and produces gases which escape upwardly through the flue I2 and also through the space between the bailles II and I6 and the space between the flue I2 and conduit tub-e I4.

Ignition of these escaping gases takes place at the top of the flue I2 and sleeve I4, and the gases form within the top of the fuel container are allowed to escape through the opening 2!]. Combustion of thegas escaping at this point takes place along with the gases escaping between the flue I2 and sleeve I4. The combustion in the stack 25 also completes the combustion of gases passing upwardly and escaping from the flue I2.

It will also be appreciated that as the fuel is consumed at the bottom of the drum 5 the fuel gradually feeds to the bottom I and the fire box 3I where combustion takes place.

By removing the lid I1 and the stack 25 the device may be used as smudge pot.

What is claimed is:

1. In a stove of the character described, a casing having a false bottom of annular form provided with a central opening and an ash pit below said false bottom, a pair of vertically spaced conical baffle members arranged above said false bottom and having their peripheries circumferentially spaced inwardly from the peripheral wall of said casing, said bafiles being of a diameter greater than the opening in the false bottom and centrally spaced above said opening to prevent discharge of fuel from the casing through the opening, the upper one of said bailies having a perforated tubular member extending upwardly therefrom, and the lower one of said baffies having an imperforate tubular member defining a flue extending upwardly therefrom and arranged within the first mentioned tubular member and circumferentially spaced therefrom.

2. In a stove of the character described, a casing, a pair of concentrically arranged stacks in the casing including an outer perforate stack and an inner imperforate stack and defining a flue, and a lid for said casing having a flanged opening at the center thereof through which said stacks extend, and the flange rimming the opening in said lid being provided at opposite sides thereof with slots, and the outer stacks having lugs projected from diametrically opposite sides thereof and cooperable with the flange for releasably retaining the lid in position on said casing.

3. In a stove of the character described, a casing, a pair of concentrically arranged stacks in the casing including an outer perforate stack and an inner imperforate stack and defining a flue, and a lid for said casing having a flanged opening at the center thereof through which said stacks extend, and the flange rimming the opening in said lid being provided at opposite sides thereof with slots, and the outer stack having lugs projected from diametrically opposite sides thereof and cooperable with the flange for releasably retaining the lid in position on said casing, and the inner stack having spring catches mounted on opposite sides thereof adjacent the upper end of the inner stack and engageable with the upper edge of the outer stack for retaining said stacks against casual longitudinal movement relative to one another.

4. In a stove of the character described, a casing, a pair of concentrically arranged stacks in the casing including an outer perforate stack and an inner imperforate stack and defining a flue, and a lid for said casing having a flanged opening at the center thereof through which said stacks extend, and the flange rimming the opening in said lid being provided at opposite sides thereof with slots, and the outer stack having lugs projected from diametrically opposite sides thereof and cooperable with the flange for releasably retaining the lid in position on said casing, and the inner stack having spring catches mounted on opposite sides thereof adjacent the upper end of the inner stack and engageable with the upper edge of the outer stack for retaining said stacks against casual longitudinal movement relative to one another, said casing being provided upwardly from the bottom thereof with an annular internal ledge and suspension means within the casing for the lower ends of the stacks.

5. In a stove of the character described, a casing, a pair of concentrically arranged stacks in the casing including an outer perforate stack and an inner imperforate stack and defining a flue, and a lid for said casing having a flanged opening at the center thereof through which said stacks extend, and the flange rimming the opening in said lid being provided at opposite sides thereof with slots, and the outer stack having lugs projected from diametrically opposite sides thereof and cooperable with the flange for releasably retaining the lid in position on said casing, and the inner stack having spring catches mounted on opposite sides thereof adjacent the upper end of the inner stack and engageable with the upper edge of the outer stack for retaining said stacks against casual longitudinal movement relative to one another, said casing being provided upwardly from the bottom thereof with an annular internal ledge, and said stacks having flared lower ends vertically spaced from each other with the flared end of the outer stack above the flared end of the inner stack, suspension brackets secured at one end thereof to the flared end of the inner stack, the other end of the brackets being formed to engage said ledge and the flared end of the outer stack seating against said suspension brackets.

6. In a stove of the character described, 2. casing adapted to contain solid fuel and provided adjacent the bottom thereof with an annular false bottom having a central opening, a conical baiiie supported in the casing above the opening of said false bottom and of a diameter greater than the opening to prevent discharge of fuel through the opening, said false bottom and baffles forming a fire box, a. fiue for said fire box extending upwardly from the apex of said conical baffle, a second conical baflie disposed above the first mentioned conical baffle and vertically spaced therefrom, and a perforated tube extending upwardly from the second conical bafiie and disposed about, and in circumferentially spaced relation to said flue.

7. In a stove of the character described, a casing provided adjacent the bottom thereof with an annular false bottom, a conical bafile supported in the casing above said false bottom and defining therewith a fire box, and a fiue for said fire box extending upwardly from the apex of said conical bafile, a second conical baflie disposed above the first mentioned conical baflie and vertically spaced therefrom, and a perforated tube extending upwardly from the second conical bafiie and disposed about, and in circumferentially spaced relationv to said flue, and spring catches adjacent the upper end of said fiue and engageable with the upper end edge of the perforated tubular member and ooacting therewith for retaining said baflies 1:;

and tubular members assembled.

JOSEPH E. TAYLOR.

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