US2197244A - Oil burning stove - Google Patents

Description

J. B. OLSON ,197,244

April 16, 1940.

' OIL BURNING STOVE Filed Jan 2, 1937 2 Sheets-Shes; 2

I Ill I "illliz lNl ENTOR Jomv 5. OLSON val gorn 6y Patented Apr. 16,

PATENT OFFICE.

2.197.244 on. BURNING STOVE John Bpolson, Fort Atkinson, Wis., assignor to James, Manufacturing Company, Fort Atkinson, Wis.

Application January 2, 1937, Serial No. 118,825

3 Claims.

The present invention relates to oil burning stoves particularly those used for heating-poultry houses, brooders, barns, and: for home and store furnaces.

An object of this. invention is to economically burn distillate, kerosene and the like without excessive noise and to provide convenient means for regulating and lighting the stove.

A further object of theinvention is to provide convenient means. for cleaning thestoveand means wherebyv accidental over-flow of fuel may be drained to a safe place.

Another object of theinvention is toprovide a design whereby the various parts may: be cast without cores and. assembled without machining.

A still further object is toprovide a flame spreader which is. adapted to prevent an excessively noisy fluttering. flame, such as is common to burners of the class and to provide meansi whereby this spreader may be raised for lighting and cleaning and provide. a reversible support for this spreader whereby itwill return to its operating position by gravitywhen its supporting member is positioned in one direction, and remain in. its raised. position when its. supporting member is placedin the other position.

Gil stovesare delicate things: and if not; properly designed frequently become dangerous and wasteful, Generally stated thepresent invention 30 has for its objectto eliminate all of the heretofore objectionable features in stoves of' this class.

and in doing so to increase the efiiciency andconvenience of the device.

To these andother useful ends this invention 35 consists of parts and combinations. thereof or their, equivalentsas set forth and claimed and' shown in the accompanying drawings in which:

Figure l is a front elevation of 'a complete stoveespecially designed for brooders and the-like, a

Fig. 4 is atop View of the burner asshown in.

Figure 2, the flame spreader being down'in its working position. Fig. is a top. view ofva fraction of the device as shownin Figure 1, illustrating the manner of regulating the air-supply to the burner.

As thus illustrated the burner, drum base ring is designatedby number- III. This ring-is pro- 55. Vided with. a suitable-flangefonthe receptionofa drum H, the drum extending to top plate l2. This plate is considerably-larger in diameter than V the drum and an annular ring plate I3 is provided having the same peripheral diameter as plate 12 and being adapted on its inner surface I to engage drum H.

An outer drum i4 is'suitably supported by plate i2 and ring I3, thus providing an outerichamber i5'which surrounds drum II. An opening I6 is provided on the front side of drum ll thus pro- 10 viding a passageway from drum ll into chamber l5.

On the rear of plate I2 and between drums H and I l; I provide an outlet pipe'fll, thus the heating gas will rise from the burner, passinto chamber I5 through outlet I6 and then pass around drum H to the outlet which registers with pipe l1. I provide a conventional, automatic check draft [8 in pipe ll, this device being too well known to require further description.

I provide a burner base which is supplied with suitable supporting legs 2|. Base ring lllis supported on spaced brackets 22 thereby providing an air channel 23 havingan inlet as at 24.

A circular flange ring 25 is provided forming an 25 an inner depression as at 28 forming a seat for burner plate 29;

I provide four, valvesor projections 3! on the under side of plate 29 which hug the inner wall of flange 25 and move; over ports 21' ,whenplate 29 is turned on its support; Thus air may enter at 24, pass between members l0 and 20 and into the burner through; ports-27; and the quantity of air-admitted to the burner maybe regulated by turningplate 29 on its support.

I provide an adjustingsh'aft 35==which extends through an-orifice in plate! Dand having secured thereon, immediately above this plate, a cam 36.

Arms 32 and 33 are made integral with" plate 29' and parallel with-each other and spaceclto' thereby loosely embrace cam 36; thus when the cam 46 v V is turned, plate 29- will be revolved on-its seat and projections3'l will'be caused to more or less close ports 21. I 5

I provide a flame spreader-plate "the=-underside being convex (as indicated), thisplate be- 4 I. These poclrets "extend to the bottom of their 56 members whereby when plate 29 is lifted, plate 45 may be removed; thus member 45 is hingedly mounted and when in the position shown in Figure 4, may be swung upward and far enough back so it will rest against the walls of drum I0, thus providing convenient means for access to the burner for lighting the fire and cleaning the burner or for observing the flame. a v

It has been noted that some operatorsforget to drop this spreader plate 45 after they have completed the cleaning or lighting task, and I have provided means for avoiding this difliculty-if the operator so desires, by simply turning member 29 one half way around so arms 46 and M embrace cam 36, and when in this position the spreader plate 45 will contact rod 35 before'it is in a vertical position and it will therefore fall by gravity when released by the operator.

It will be noted by observing the cutaway section in Figure 4, that valve 3| partially closes ports 21 when cam 36 is in the position shown in this figure; therefore by turning the cam to the left or the right the. portswill be covered or uncovered.

Member 20 is provided with a central depression or pocket 50 having a feed pipe 5 which is screw threaded into an opening as at 52.

I provide a circumferential trench 53 around pocket 56 the purpose of which is to trap any oil that may overflow the top of pocket 50. I provide also a circumferential channel 54, this channel having a depression 55 positioned under pipe 5|. I provide a depression or pocket 56 adjacent depression 55, and an orifice 5'! whereby overflow oil trapped in pocket 55 may flow to pocket 56 whence it may flow to a safe place through overflow pipe 58. Thus any oil or fuel that may overflow trench 53, may reach overflow pipe 58.

The outer wall of channel 54 is cut away as at 59 thus to make room for pipe 5!. In the course of time, if I orifice 5! becomes clogged with carbon or other foreign matter, the oil may accumulate until it reaches opening 59 where it will overflow into pocket 56 and escape through overflow pipe 58.

I provide a flange 66, thus forming a shallow channel, the bottom of which intersects the bottom of ports 21; this channel also intersects pocket 56. Thus it will be seen I have provided a central pocket having a fuel oil inlet, a trench around this pocket which is about on the level I provide a bolt 69 having a nut and washer .awhereby sector 68 may be turned to the right or left and locked into position. Thus the air inlet adjustment can be made from the outside of the drum. Bolt 69 is secured to a lid 10 which forms a cover for an'opening in plate 2 for .access to the burner; thus when the operator desires access to the burner, cover 10 may be swung sidewise'on rod 35 as an axis. If it is found desirable, this lid may be swung in the.

direction which will open the air ports 21.

It will be noted that the opening plate 29- is somewhat larger than the wall of pocket 50, thus providing an annular passageway H whereby the entering air will surround the gas as it escapes from pocket 50, thus insuring complete combustion before the mixture passes from under plate 45.

To start a fire, member 45 is lifted and the well or pocket 50 is filled with fuel oil, some ofwhichmay be permitted to flow into trench 53 and a bit of "cloth or paper is placed in the well and lighted. The oil is then permitted to burn "until there will be sufiicient heat in the wall of well 56 to evaporate the fuel oil as it ispermitted to flow into this well, and the cloth or paper is then removed as it merely acts as a wick. After the burner begins to operate satisfactorily and the air adjustment has been made, flame plate 45 is permitted to drop into position and lid 16 moved into position, the supply of oil being then regulated either by thermostat control or otherwise. Generally, a wick is only necessary when the burner is new or clean, after a few hours use there is enough rough jagged carbon deposit to act as a wick.

As a matter of convenience, I have disclosed my invention as applied to a brooder stove inclosure. It will be understood that it may be used in any conventional type of inclosure and that many minor detail changes in the burner may be made without departing from the spirit and scope of the invention as recited in the appended claims.

Having thus shown and described my invention, I claim:

l. A fuel oil burner of the class described, comprising a central opening, spaced air inlet ports below said opening, an annular ring forming a flame opening revolvably mounted in said opening having depending flanges each adapted to move over one of said ports when said annular ring is turned, a flame spreader positioned over said ring opening having a convexed lower surface and being hingedly mounted at one side to said annular ring, a stop rest on the other side of said spreader cooperating with said hinge to thereby hold the spreader a distance above said ring opening, means on opposite sides of said annular ring transverse to said hinge each adapted to engage a manually operated device positioned on said burner whereby air adjustments may be made in either position of said ring.

2. A fuel oil stove of the class described, comprising a drum and a burner in the bottom thereof having a centrally positioned opening, spaced inlet air ports below said opening, an annular ring forming a flame opening revolvably mounted in said opening and having valves adapted to move across said ports when said ring is turned on its support, a spreader plate having a convexed lower side and. being hingedly mounted at one side to said annular ring and having a stop rest cooperating with said hinge to thereby hold said spreader a distance abovesaid ring opening, an opening in the top of said drum having a lid, means for turning said annular ring which extends through the top of said drum adjacent said drum opening and having an adjustable connection to said lid whereby when said lid is turned for access to said drum in one direction, additional air will'be supplied to said burner and whereby when said lid is replaced, the air adjustment will be returned to normal.

3. A fuel oil stove of'the class described, comof having a top plate with an opening, a number" of spaced air inlet ports adjacent the periphery of said opening, an annular ring removably mounted in said opening and forming a smaller opening having valves adapted to move across said ports when turned on its mounting, a spreader plate hingedly mounted on and held a distance above said ring, means rotatably supported on said plate adapted to selectively en- 10 gage either said hinge or said annular ring on its

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