US2356015A - Oil burner - Google Patents

Description

' Aug- 15, 1944. J; T.`sToNz-: Erm. 2,3564015 OIL BURNER Filed April 15, 1942 A.Htl ornqy Patented Aug. 15, 1944 l. JohnrTi Stone onlUnNEa and'William J. Schuerholz, Jr.,

Baltimore, lMd.

'i Appiication AprilV` i5, 1942,seria11v0- 439,118

' 2 Claims. co1. 15s- 91) This invention relates to improvements in oil burners, and has for its object to provide a simple, cheap and eicient burner that can be placed in any furnace or stove and operated by natural draft.

The invention consists of the novel construetion and arrangement of parts and combination of parts hereinafter more fully set forth in the following specification and pointed out in detail in the appended claims.

In the accompanying drawing- Figure 1 is a side elevation of a burner embodying our invention.

Figure 2 is a plan view of Figure 1.

Referring to the accompanying drawing, forming part of this specification, and in which like reference numerals designate like parts throughout the several views, I is a nipple to which the pipe leading to the supply tank is connected, and through which the oil iiows by gravity to the pan 1. The oil entering the pan or channel 1 flows around the cone-shaped center 4 on both sides thereof to the baille plate 6. The pan 'I has an integral projecting collar which fits over the pipe I and is held to the adjusted position by the set screw 9. The pipe I0 is secured to the draft pipe II by the elbow 8. The said pipe I0 has a goose neck upper end 5, the downwardly projecting end of which is funnel shaped at 3 and is held in the adjusted position above the cone-shaped center 4 of the pan l. The draft pipe I I is provided with a draft door I3 hinged at I2. The cone-shaped center 4 is provided with a small pipe or nipple 2, one end of which extends down into the pan 'I while the other end projects through the coneshaped center 4 to admit air.

The cone-shaped structure is apexed upwardly, while the base merges into the pan in a comparatively narrow rim channel as indicated in Figure 1. The oil feed pipe l enters at the bottom of this channel diametrically opposite the converging line of the baille plate 6. The goose neck air duct 5 rises vertically in back of the pilot plate through the rear of the pan 1; bends forward sufliciently to align with the apex of the cone member 4; and descends vertically over same with its end portion flared out at a wide angle to cover the apex and flow the air without restriction over the surface of same. The baffle plate 6 is fitted in closely or welded-in preferably as shown, to block the channel and prevent the passage of the oil fed into it, to the space about the rising leg of the gooseneck. It is higher than the cone and ared out mouth of the goose neck. The position of the gooseneck is adjustable, by the use of the set screw 9. Thel oil feed pipe outlet in the channel also serves as a pilot light orifice when the ow of oil is small. The small piece of piping 2 located near and pointed to it, serves to allow and guide sufficient air to this pilot to keep it lighted. Otherwise the lack of oxygen when the draft door I3 is closed, would cause it to go out. The pipe is relatively small, so that little air will be admitted at a time. This is to prevent an explosive mixture developing should the pilot light go out. The flared or funnel mouth 3 of the duct guides the air through the duct down on to the apex surface of the cone and flows the air across its external surface to feed the flames to the peripheral rim of the pan.

The flames at the baffle plate rise around the vertical surface of same and heat the gooseneck. The baiile plate is converged towards the center of the cone, with its rear edges cut at a slight angle from the vertical. The spacing of the sides of the plate is sufficient to permit manual access to the rear stem of the duct 5 for various purposes. The oil cannot flow to the gooseneck stem because of the obstruction afforded by the baffleplate. The latter is preferably integral with the cone. The tubing 2 is terminated at the channel just about the normal level of the oil poured therein during the operation of the burner. Oil and fuel are to be considered synonymous in this application, as other materials besides the substance called oil specifically can be used in the same way.

The operation of the device is as follows:

The oil flows through the connection I supplied from the supply tank by gravity and enters the pan 'I and flows around the base portion of the cone-shaped center 4 back to the baffle plate 6. The oil in the pan 1 is lighted. The air passing into the draft pipe II and up the pipe Il) through the funnel shaped end 3 causes the burning oil in the pan 1 to spread out against the sides of the fire box. The pan 1 can be raised or lowered to bring it into the desired position with relation to the funnel-shaped end 3 of the draft pipe, and held in the adjusted position by the set screw 9. The amount of air to the burner can be regulated by the draft door I3 which latter may be operated manually or automatically.

Having thus described the invention what is claimed is:

1. An oil burner of the class described comprising in combination a pan having a cone shaped central portion and a peripheral channel arranged to hold a supply of oil to be burned therein, a nipple attached to the bottom of the channel for conducting the oil thereto, a pipe for supplying air to the burner passing through the bottom of the pan and attached thereto with its portion above the pan bent into a goose-neck like form terminating over the said cone-shaped central portion and made funnel shaped so as to cover the cone but be spaced therefrom to allow air to pass down from the said pipe across the said central portion, and a V-like baliie plate attached to the bottom ,o'fi the pan" at yone'side `of the central portion, the said baille plate havingits V-like sides straddling the gooseneck and extending up beyond the bottom of the funnel-' shaped portion of the air pipe to keep the oilin the pan from contact with said air pipe. f 2. An oil burner of the class described cm-f prising in combination, a circular pan having a raised central portion of cone-like form and aperipheral channel adapted to contain oil to be burned therein, the sides of the pan forming' the '2 outer contour of the pan being ared upwardly and outwardly from the central portion, a nipple attached to the bottom of the pan for introducing oil into the channel, a pipe at one side of the pan for conducting air to the said central portion and down across its slope, said pipe being 5 vertically disposed and formed into a gooseneck outline rising from one side of the pan and bending down over the said central portion and enlarged into a funnel-like form with its Wall substantially parallel to the slope of the central por- 0 tion of the pan and adjustably spaced therefrom to provide a passageway for the air to pass from the pipe down across the slope aforesaid, a V-like baliie-plate attached to the bottom of the pan and at one side thereof with its sides vertically 5"disposed and straddling the gooseneck rising "'i'above the bottomv of the pan but spaced there- -Afrom-to keep the oil in the pan and air from the pipe passing beyond the said sides to and about the exterior of the pipe. 0 JOHN T. STONE.

WILLIAM J. SCHUERHOLZ, JR.

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