US1450039A - Combined wood and coal burning stove - Google Patents

Description

Mar. 27,1923 1,450,039

J. HOWARD COMBINED WOOD AND COAL BURNING STOVE Filed Oct. 15, 1922 m I I I "M v k r l u NH I J l ,9

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Patented Mar. 27, 1923.

UNITED STATES JAMES HOWARD, OF SOUTH PORCUPINE, ONTARIO, CANADA.

COMBINED WOOD AND COAL BURNING STOVE.

Application filed October 13, 1922.

To all whom it may concern:

Be it known that I, J AMES HOWARD, a citizen of Canada, residing at South Porcupine, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Combined Wood and Coal Burning Stoves, of which the following is a specification.

This invention relates to certain new and useful improvements in combined wood and coal burning stoves wherein separate combustion chambers are provided forv theburning of wood andcoal, thecombustion chamber or fire pot for the burning of woodbeing disposed at the upper end of the stove above theicoal burning fire pot so that the heat risingifrom the burning coalwill permit the drying of damp or green wood to be burned,

A further object of the invention resides in the provision of a combined wood and coalburning stove wherein a damper positioned adjacent the upper end of thestove casing and in the main flue of the stove is operable for controlling the flue passage from either the wood or the coal burning chambers.

The invention further provides in a combined wood and coalburning stove, a single ash,pit with an inclined ledge or partition wall interposed between the upper vwood burning chamber and the lower coal burnin hamber, a gravity chamberbeing associated withithe inclined partition forming a closure for the rear end thereof and shutting off communication with the main fiue,'while an automatically operating gravity dam er is associated with the lower end of the no fordirecting the wood ashes into the ash pl With the above and other objects-in view, the invention consists of the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing andclaimed.

In the drawing, wherein like reference characters designate corresponding parts throughout the several views,

Figure 1 is a front elevational view of a combined wood and coal burning stove constructed in accordance with the present invention,

Figure 2 is a vertical sectional view of a combined wood and coal burning stove constructed in accordance with the present invention, showing the separate wood and coal Serial No. 594,273.

burning chambers and the several associated therewith,

glgure 3 is a top plan viewv of the stove, an

Figure 4 is a horizontal sectional view taken on line-IVIV of Fig. 2 showing the wood burning grate and the damper, plate gssoclated with the upperend of the stove Referring more in detail to the accompanying drawing, there is illustrated a combined wood and coal burning stove embodymg a casing 1 of cylindrical formation supported uponfeet 2, the upper end,of'the stove casing being provided with a cover or top wall 3 having a rearwardly positioned flue opening 4:,the top wall 3 being provided witha central opening 5 to becovered by a swlnging, plate 6 pivotally mounted as at 7 upon'the top wall 3.

The interiorof the stove casing 1 adjacent the bottom wall 8.is.provided with a coal burning chamber, ametallic frame 9 suitably mounted within the casing 1 supporting a coal burning grate 10 positioned above the bottom wall of the stove providing an ash pit 11, accessthereto being obtained through the side door 12 as clearly shown in Figs. 1 and2. A lining of refractorymaterial, such asfire brick 13 is supported on'the frame9 and constitutes the wall for the-fire pot, access thereto being obtained throughthe door 14 ,positioned, above the coal burning fire potasshown in Fig. 2.

The wood burning chamber for the stove is positioned adjacent the upper end thereof, a metallic frame 15 supporting a grate 16 with a refractory lining 17 supported on the dampers frame 15,- access being obtained to the wood burning chamber throughthe door 18.

A combined draft flue and ash chute is provided in the stove at the rear side thereof opposite the several doors 12, 14, and 18, and disposed beneath the flue outlet 4: carried by the top wall of the stove, and embodies sections 19 and 20 disposed rearwardly of the coal and wood burning chambers respectively, an intermediate flue section 21 being disposed between the fiue sections 19 and 20 as clearly shown in Fig. 2. A horizontal partition wall 22 is disposed in the stove casing tween the coal and wood burning chambers and terminates vat the forward side of the adjacent flue section 21 as illustrated, the. upper surface of the partition wall being rearwardly inclined as at 22 for receiving I the ashes from the wood burning chamber thereabove and discharging the same into the flue section 21, the bottom wall of-the partition 22 having a refractory face 23 embedded therein as illustrated in Fig. 2 and overlying the coal burning chamber therebeneath.

The several dampers associated with the stove include a gravity closing damper 2i swingingly mounted upon the horizontal pivots 25 adjacent the intermediate flue section 21 with the free edge of the damper 24 engaging the rear declined edge of the upper wall 22 of the partition. The lower flue section 19 is provided with a gravity closing damper 26 operated bythe weight of the ashes falling thereon for discharging the ashes into the pit 11. The upper damper 27 is mounted on a horizontal pivot 28 adjacent the forward edge of the upper flue section 20 and the rear edge or side of the wood burning chamber as shown in Figs. 2 and l, the damper 27 being manually operated by the rod or handle 29 extending through the side wall of the stove casing 1.

In the use of the stove, wood or coal may be burned separately or at the same time, the damper 27 being operated for regulating the use of the stove. With the damper 27 in the full line position shown in Fig. 2, both the wood and coal burning chambers of the stove may be simultaneously utilized with unrestricted communication through the enclosed flue sections to the outlet flue 4. When it is desired to use the coal burning chamber alone, the damper 27 is moved to its vertical osition as illustrated by dotted lines in *ig. 2, closing the wood burning chamber and only establishing communication between the coal burning chamber and the outlet flue 4, and when it is desired to alone employ the wood burning portion of the stove, the damper 27 is lowered to its horizontal position, thereby cutting off communication between the coal burning chamber and the outlet flue 4 as will at once be obvious from an inspection of Fig. 2. Ashes from the wood burning chamber will descend through the grate l6 and be received from the inclined surface 22 of the partition 22, falling or moving thereon into contact with the gravity closed damper 24 that may be manually operated by the externally positioned handle 30 shown in Figs. 1 and 4:, permitting the ashes to fall through the flue sections 21 and 19 to be received upon the gravity operating damper 26 for discharge into the ash pit 11. It is to be understood that a suitable pan or receptacle may be positioned in the ash pit 11 to facilitate the removal of ashes therefrom. Attention is also called to the door 31 communicating with the chamber above the partition wall 22 for purposes of cleaning the upper surface 22 thereof should ashes be lodged thereon. A segment device 32 positioned exteriorly of the stove casing 1 is associated with the handle 29 for operating the damper 27 to hold the same in adjusted positions as shown in Figs. 2 and 4:. By providing the wood burning chamber at the upper endof the stove and above the coal burning chamber, it is possible to place Wet or green wood therein for drying the same by the heat rising from the coal burning chamberl prior to the burning thereof.

While there is herein shown and described the preferred embodiment of the present invention, it is nevertheless to be understood that minor changes may be made thereinwithout departing from the spirit and scope of the invention as claimed. 7

What is claimed as new is 1. In a combined wood and coal burning stove, a casing, a lower coal burning chamber and an upper wood burning chamber therein, a flue within the casing communicating with a flue outlet, means within the flue for controlling communication between the two burning chambers and the flue outlet, said casing having an ash pit at the lower end thereof, anda gravity operating damper adjacent the lower end of the flue for receiving ashes from the wood burning chamber for discharging the same into the ash pit.

'2. In a combined wood and coal burning stove, a casing, a lower coal burning chamber and an upper wood burning chamber therein, a flue within the casing communicating with a flue outlet, a manually operable damper within the flue for controlling communication between the two burning chambers and the flue outlet, said casing having an ash pit at the lower end thereof, and a gravity operating damper adjacent the lower end of the flue for receiving ashes from the wood burning chamber for discharging the same into the ash pit.

3. In a combined wood and coal burning stove, a casing, a lower coal burning chamber and an upper wood burning chamber therein, a flue within the casing communicating with a flue outlet, means within the flue for controlling communication between the two burning chambers and the flue outlet, said casing having an ash pit at the lower end thereof, a gravity operating damper adjacent the lower end of the flue for receiving ashes from the wood burning chamber for discharging the same into the ash pit, a partition wall between the two burning chambers and having an upper surface inclined toward the flue and a gravity closing damper plate positioned between the flue and partition wall.

' 4:. In a combined wood and coal burning therein, a flue within the casing communicating With a flue outlet, a manually operable damper within the flue for controlling communication between the two burning chambers and the flue outlet, said casing having an ash pit at the lower end thereof, a gravity operating damper adjacent the lower end of the flue for receiving ashes from the Wood burning chamber for discharging the same into the ash pit, a partition wall between the two burning chambers and having an upper surface inclined toward the flue and a gravity closing damper plate positioned between the flue and partition wall.

In testimony whereof I aflix my signature.

JAMES HOWARD.

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