US1167605A - Oil-burner. - Google Patents

Description

J. H. WELCH.

OIL BURNER.

APPLICATION man APR. 11, 1915.

Patented Jan. 11, 1916.

Fig 3 INVENTUR 1/5/02 /7. h elefi WITNESSES:

50/14 A TTOR/VEY CpLUMBIA PLANOORAPH ca, WASHINGTON. D. c.

pip

JOHN H. WELCH,OF SEATTLE, WASHINGTON.

OIL-BURNER.

Specification of Letters Patent.

Application filed April 17, 1915. Serial No. 22,122.

To all whom it may concern Be it known that I, JOHN H. WELoH, citizen of the United States, residing at Seattle, in the county of King and State of VVaShington, have invented a certain new and useful Improvement in Oil Burners, of which the following is a specification.

My invention relates to improvements in burners which are adapted to burn fluid fuel such as crude oil, kerosene, gasolene and the like, but more particularly relates to such burners that may be employed in connecticn with stoves for heating or cooking, and the object of my invention is to provide a burner that shall be simple in its plan of construction, easily cleaned, reliable and efficient in its operation and that shall be adapted to utilize for its fuel different mineral oil products, and a further object of my invention is to provide such burner that may be readily attached to various forms of stoves and furnaces that are now in general use. I attain these objects by devices illustrated in the accompanying drawings wherein Figure 1 illustrates aburner embodying my invention by a view in vertical mid-sec; tion, some parts, however, being shown in side elevation; and Fig. 2 is a plan view of the same.

Referring to the drawings, throughout which like reference numerals indicate like parts, a base-plate 4, preferably made of cast iron, is adapted to be disposed to rest' upon and cover the grate (not shown) of a fire-box of a stove and disposed to rest on such base-plate 4: is a'saucer-like priming pan 5 provided with a centrally disposed hub 6 and extending upwardly through the base-plate 4E and the hub 6 of the priming pan 5 is a fluid fuel supply pipe 7 which may lead from a valve controlled supply of fluid fuel (not shown). Such supply pipe 7 has its upper end provided with an external screw-thread which screws into a hub 8 which is centrally disposed on the convex bottom portion of a hollow fuel receptacle 9, and extending through the top wall of the fuel receptacle 9 are two conducting pipes 10 and 11, respectively, which project upwardly and spirally in engagement with each other thus to surround a cylindrically formed space, thence each to extend vertically for a further distance to project its end through the bottom wall of another fuel receptacle 12 and into the interior thereof to a point near the top wall thereof, as indicated by dotted lines in Fig. 1.

Extending through the central portion of the bottom wall of the fuel receptacle 12 is a burner tip 13 whose orifice 14 may serve to direct combustive agents downwardly into and through the cylindrical space which is surrounded by the spirally disposed portion of the pipes 10 and 11. The upper end portion of the burner tip 13 extends to a plane near the top wall of the fuel receptacle 12 and its open end is closed by a cap 15, but through its walls, adjacent to the cap 15, are a plurality of holes 16 extending therethrough, which holes 16 are disposed at equi-distant circumferential points and such holes 16 are substantially in the same plane with the top ends of the pipes 10 and 11.

In the structure thus described, fluid fuel may'pass upwardly through the pipe 7 to fill the receptacle 9, thence to flow upwardly through the pipes 10 and 11 to pass into the receptacle 12 wherein such fluid may rise to flow through hole 16 into the burner tip 13. thence downwardly through the orifice 14 to fall on to the top surface of the receptacle 9, thence to flow over the edges thereof to drop into the priming pan 5 to collect therein until its surface rises to a plane of a.

Patented J an. 11, 1916.

height which will cause such fluid fuel to flow over the edges of a pipe 17 which may serve as a drain pipe to conduct away anv excess fluid fuel above that amount required in the priming pan 5 for heating the burner in the initial operation of lighting it.

Extending through the central portion of the top wall of the receptacle 12 is a conducting pipe 18 which may lead to a valve controlled source, not shown, of compressed air or steam, whereby such compressed air or steam may be admitted to the interior of the receptacle 12 to impinge upon the top surface of the cap thus to flare out in the form of a spray to mix with the fuel contained therein and to force the resultant mixture through the burner tip 13 in an obvious manner.

Disposed on opposite sides of the burner are air pipes 19 and 20 which are provided with fixed collars 21 and 22, respectively, which pipes 19 and 20, like the pipes 7 and 17, extend downwardly through the baseplate 4: and through the stove grate, not shown, between the bars thereof. Such pipes 19 and 20 are supported in their positions by the collars 21 and 22, respectively, and

the upper ends of such pipes 19 and 20 are air that is drawn upwardly through them" from the space below the stove grate, not

shown, may be directed toward the point of combustion of the fluid fuel. WVhile have shown only two of such air pipes 19 and 20, it may be desirable to provide a larger number to be disposed in a concentric circle around the burner, and under some conditions of operation such pipes 19 and 20 may be dispensed with.

The operation of my burner is as follows: The valve, not shown, controlling the flow of air through the pipe 18 being closed, the valve, not shown, of the fluid fuel supply pipe 7 is opened to permit fluid fuel to flow through. the burner until such fuel drips into the priming pan 5 there to collect in sufficient amount for heating the burner whereupon the flow of such fuel through the pipe 7 is shut off and thereupon the fuel collected in the priming pan 5 is ignited to heat the receptacle 9, the pipes 10 and 111 and the receptacle 12 to such degree as will gasify the fuel therein whereupon the resultant gas will issue from the orifice 1d and become ignited by the flame rising'froln the primingpan 5thi1s'to aid in heating the burner and thereupon a proper flow of air under pressure or steam isadmitted through the pipe 18 into the chamber 12, and then liquid fuel through thepipe 7 is again admitted to the burner to flow at a required constant rate to supply the burner with liquid fuel at the same rate that it is converted into gas and consumed, in an obvious manner.

Manifestly changes may be made in the form of a helix, an inclosed receptacle for fluid fuel I secured to the upper ends of said two pipes, said upper ends of said pipes extending through the bottom wall of said receptacle and above the inner surface of the bottomthereof so that said receptacle shall be" concentric with said base portion, a pipe adapted to conduct steam through the central portion of the top wall of said receptacle, a burner tip of tubular form removably disposed to extend upwardly I through the bottom wall of said receptacle andjint o the space therewithin to a plane higher than the inner surface of the bottom wall of said receptacle, a cap disposed to cover the top inner end of said burner tip, and a plurality of passageways disposed-each at a different circumferential point to extend through the wall of said burner tip adjacent to said cap.

In witness whereof, I hereunto subscribe my" na1ne this tenth day of April A. 1)., 1915;"

. JOHN H. WELCI-l. Witnesses:

A. HASKINS, O. JOHNSON.

Copies of this patent may be obtained for five cents eaclnby addressing the Commissioner of Patents. Washington; ID. 0:

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