US2219532A - Burner - Google Patents

Description

Oct. 29, 1940. M. ROADS v 2,219,532

BURNER Filed June 16, 1939 /0 y 9 A? 6 5 /d r I /6 24 K s/ 2 h: I I v if h v a II} I I I J56 I 5; S 2

IVNVENTEIR MIKEL Rams ITTY.

Patented Oct. 29, 1940 t l UNITED STATES.

. BURNER MikelR-oads, Bell, Calif.

LPATENT. OFFICE! Application June16, 1939, Serial No. 279,463

1 Claim." (c1. za-es) This invention relates to burners and the like for consuming inflammable liquids, especially those classed as low grade liquid fuelssuch as lubricant oil drainings from automobile engine crank cases and the like.

Means are provided for conducting the liquid fuel to the burner which comprises. an open end pipe mounted with a floating valve. The valve opens to allow fuel to pass through the opening 10' when an internal pressure within the pipe forces the valve upwardly. The fuel burns around the periphery of the valve-head and creates a spreading flame which produces a great deal of heat. The efliciency of the fuel combustion is relatively 193- high which is evidenced by the fact that little smoke results.

The pipe has an appreciable area exposed to the heat of the combustion chamber and is effective in aiding the more complete burning of the low 20 grade oils.

The burner and its associate parts are extremely simple and free of moving parts which might bind or interfere with its efficiency. The

burner is very economical to make and use and is 25 adaptable to nearly all types of stoves, furnaces, fire boxes and the like.

An object of the invention is to provide a liquid fuel burner which is very simple in construction and extremely economical to make and use, and

30 which is also adapted for easy installation in nearly all kinds and types of fire boxes, stoves and the like.

Another object is to present a unit for burning low grade fuel in a fire box that is economical to 35 manufacture.

Still another object is to provide a burner in which the fuel ejector is automatically controlled by gravity operative means that is substantially frictionless.

40 Other objects, advantages and features of -my invention will appear from the accompanying drawing, the subjoined detailed description, the preamble of these specifications and the appended claim.

Applicant is about to illustrate and describe one of the forms of his invention in order to teach one how to make, use and vend the same, but it is to be understood that the drawing and description thereof are not to limit the invention in any sense 50 whatsoever, except as limited by the appended claim.

In the drawing: Fig. 1 shows the invention in elevation with parts broken away.

55 Fig. 2 shows the invention in plan view.

Fig. 3 shows a cross section taken substantially along the line 33 of Fig. 1.

Fig. 4 is a detail shown in vertical section.

The stove includes spaced apart cylindrical units indicated in general by the numerals l and 5" 2, the unit .I being the outer one and the unit 2 being the inner one. The outer unit comprises a cylindrical wall 3, an integral disc-like bottom wall 4 and a similar integral top wall 5. To the bottom wall is attached a plurality of angled legs 6 for supporting the entire structure above the floor 1. The top wall 5 is provided with a flanged opening 8 and a flue opening 9. The flue opening has a short flue pipe ID, the top of which is adapted to be connected with the usual flue pipes (not shown) that pass through the top of the building for exhausting the undesirable gases of combustion. A side door-way opening II at the side of the stove is closable by a door l2 which is hinged to the wall 3 in any suitable manner.

The inner unit 2 comprises a cylindrical wall 13 having an integral disc-like bottom l4 and a similar top wall l5. The top wall has an opening Hi to provide passage of the flue gases to the flue pipe in and a side opening ll in register with the opening ll. These openings are provided with annular walls 18 and I9 to prevent entrance of flue gases into the space 20 between the spaced apart walls of the units 1 and 2. The top wall [5 is also provided with another opening 2| which is smaller than the opening 8.

Extending downwardly through the openings 8 and 2|, is a pipe 22 having both ends open. In-

tegral with the top of the pipe is a flanged collar 23 of suflicient size to snugly lit the openings as shown.

Within the stove is a burner 24 including an upright fuel. pipe 25, and a horizontal pipe 26 which passes through the walls 3 and I3 of the stove via packing glands 21. A pipe 28 continues the pipe line to the bottom of a reservoir 29 wherein is kept the fuel oil. The reservoir or container 29 is supported along the side of the stove by the bracket shelf 30 which is anchored to the stove wall 3 by bolts'3l. A sheet of asbestos 32 prevents undue heating of the container 29 so that the oil therein will not rise dangerously near its flash point. A valve 33 inserted in the pipe line is the means for controlling the fuel supply to the burner. 5

The burner 24 consists of the top portion of the erect pipe 25 .and the free valve'element 35. This valve element comprises a disc head section 35 and an integral depending stem section 36. The head 35 should have a diameter about twice that 5 fuel and also the force thereof under normal working conditions. The chamber 37 is the fire box section of the stove and is of sufficient size to provide room for paper or other combustible materials used for starting the burner.

Operatiom Through the side door, paper, excelsior or the like is placed in the bottom of the fire box around the pipe 25; this priming material is set afire to warm the pipe 25 and also for the purpose of providing a flame close to the burner 24. The valve 33 is then turned on to allow the fuel oil in the tank 29 to flow by gravity into the pipe 25 and outwardly therefrom as its pressure lifts the valve head 35. The flames from the primer ignite the oil around the bottom of the valve head where it burns rapidly in the configuration of a saucer. As the pipe 25 becomes hotter, the oil burns still more rapidly with a slight roar, the burner now is functioning perfectly and at a high efficiency. No smoke or odors whatever pass upwardly through the heater pipe 22, but much heat finds its way therethrough. Over the top of the pipe 22, various cooking equipment may be provided so that the stove will be useful as a cooker as well as a heater.

2,219,532 of the pipe bore and the stem should preferably No smoke or odors rise upwardly through the pipe 22 for the reason that the flame of the burner 24 is fan shaped and spreads well beyond the bottom opening of'the pipe; thus fuel not completely burned, passes upwardly around the outer side of this pipe to the flue. The pipe 22, however, becomes very hot, due to hot combustion gases passing in contact with its outer side, and effectively conducts heat to the top of the stove where it is useful for cooking purposes. When the stove is completely closed, so that all the air to support combustion enters the pipe 22, then obviously, there would be not the slightest pressure diiferential to cause smoke and odors to flow upwardly in the pipe 22.

I claim:

A stove comprising a fire chamber having top, bottom and side walls, a down draft tube depending from the top wall and terminating inan open end near the center of the chamber, a pipe having' a valve-at its top and extending upwardly from the bottom of the chamber to a point near the center of the chamber but spaced from and beneath the open end of the tube, said valve comprising a fiat disc-like head having a depending stem which fits loosely into the open upper end of the pipe, said head having a horizontal area greater than the opening of the pipe and smaller than the opening of the down draft tube, said open end of the tube and valve at the top of the pipe forming a fuel burning unit, and means connected to the pipe to supply fuel thereto.

MIKEL ROADS.

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