US1534650A - Refuse-oil burner - Google Patents

Description

April 21, 1925.

J. H. LARSON REFUSE OIL BURNER Filed Nov. 5, 1924 JUPATENT OFFICE.

JACOB ri. LARSON, or christian, .onEeo-n.

REFUSE-OIL BURNER.

Application filed November 3, 1924. Serial No. 747,504.

To all whom it may concern:

Be it hereby known that I, J ACOB H. LAR- soN, a-citizen of the United States, and a res ident of Gresham, in the county of Multnomah and State of Oregon, have invented a new and useful Refuse-Oil Burner, of which the following is a specification.

This invention relates generally to the burning of liquid fuel and particularly to the burning of refuse oils such as accumulate in garages when emptying crank cases, etc.

An object of my invention is to enable the garage owner to utilize what is ordinarily waste material as fuelfor heating-purposes.

A second object is to so construct the device th'atit is extremely simple to manufacture and has no delicate parts which will be apt to get out of order.

A third object is to so construct the device that the air within the combustion chamber will be kept in circulation in order that there will not be any accumulation of unburned gases in any portion of the combustion chamber.

These and other results will become more apparent from the specification following and as illustrated in the accompanying drawing, in which:

Figure 1 is a side elevation of my device and Figure 2 is a front elevation. Figure 3 is an enlarged longitudinal section through the burner tip. Figure 4 is an end elevation of the burner tip.

Similar numbers of reference refer to the same parts throughout the several views.

Referring in detail to the drawing, I have illustrated a stove 10 having a door 11 through which the burner tip of my device can be passed. Referring to the device itself, I have constructed same on a base 12 on which are mounted the four legs 13 joined at their upper ends by the cradles or cross ties 14 which support the tank 15 provided at one end with a dividing wall 16 which forms a small compartment for the storage of kerosene to be used in starting the fire. A flange 17 at the top of the tank 15 is provided with a strainer 18 preferably made removable and through which the waste oils are poured into the tank 15.

Under the tank 15 is placed a fan 19 on whose shelf 20 is mounted-a motor 21 which drives the fan. A damper 22 is provided to cut off the supply of air to the fan. A tip 23 of sheet metal is attached to the discharge end 24 of the fan 19 by means of the pin On the end 26 is mounted a T 27 whose upper side is connected by means of a pipe 28 to the cutoff cook 29 on the lower side of the'kero'sene compartment of the tank 15.

25, and the lower end 26 of the tip 23 is passed throu h the door 11 of the stove.

On the stove side of the tank 15 is placed I a guard 30 joined by the bolts 31 which pass through the spacers 32 to the legs 13. On the under side of the refuse oilportion 0f the tank 15 I'have placed an outlet pipe 33 whose valve 34: controls the supply of 011 through the tub'e35 which forms a coil- '35 over the burner tip end-26*and connects withrthe lower side of the/T27.

Inside of the end 27 is placed a flat shell 36 having teeth formed at its lower projecting end 37 and projecting into the end 26.

of the burner tip beyond the position of the T 27. A second T 38 spreads the oil in the shell 37 which, if completely gasified in the coil 35, strikes against the sides of the shell 36.

On the under side of the end 26 I have formed the raised lip 39 which catches a portion of the air passing through the end 26 and deflects same into that portion of the stove which is under the tip 23 causing same to circulate and reduce the tendency to smoke. The T 27 is preferably mounted on a flange A0 whose screws 41 pass through the tip 23 and the shell 36. A screw 42 holds the lower end of the shell 36 against the flattened top of the end 26.

The operation of my device is as follows: Kerosene is placed in the small compartment of the tank 15 and crank case oil, or similar refuse oil, is placed in the larger compartment. A small amount of kerosene is permitted to flow into the stove under the control of the valve 29 and paper or trash is placed in the stove and ignited. The motor 21 is now started and a supply of air is admitted to the burner tip. When sufficient heat has been developed the valve 34 is opened slightly and crude oil permitted to flow into the burner, where it mixes with the air from the fan and enters the stove and is completely consumed. By adjusting the damper 22 on the fan 19 a very clean fire can be maintained.

Since the area of the tank is relatively large and the variation in head is relatively small, it will be seen that a fairly uniform pressure is maintained and that the valves will therefore require a very small amount of adjustment.

I am aware that many forms of oil burning devices have been constructed in the past, I therefore do not claim same broadly, but I do intend to cover such forms and modifications as fall fairly within the appended claims;

I claim:

1. A refuse oil burner having, in combination, an inclined burner tip; a fan arranged to force air through said tip; a flat shell within the upper portion of the discharge end of said tip; an oil container over said tip; a pipe leading from said container forming a coil over the discharge end of said tip and opening into said flat shell; and a lip formed in the under portion of said tip adapted to deflect air underneath said tip. 7 1 1 2. A refuse oil burner having, in combination, an inclined burner tip; afan arranged to'force air through said tip; a shelf on said burner tip at its lower end; a lip on the bottom of said tip under. said shelf adapted to deflect air through thev bottom of said tip; a fuel tank over the upper end of said tip; a valve-controlled pipe for conveying oil from said tank and depositing same on said shelf.

3. A refuse oil burner having, in combination, a combustion chamber; an inclined burner tip consisting of a cylindrical pipe having a flattened lower end projecting into said combustion chamber; aflat shell projecting from the upper portion of said lower end, the outer edge of said shell having teeth formed thereon, and the lower portion of said shell forming a shelf in the middle of said tip; a T mounted on said tip over said shelf having an opening into said shell; a double fuel tank over said tip; a valve controlled kerosene pipe from one of said tanks to the upper side of said T; a valvecontrolled oil pipe leading from said tank then forming a coil at the lower end of said tip and then connecting with the lower end of said T; and a fan arranged to force air downwardly through said pipe into said combustion chamber.

JACOB H. LARSON.

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