Oil burner

Application filed Tune 24, 1919.

To all whom it may concern:

Be it known that I, Frank J. Atkins, a citizen of the United States, residing at Davenport, in the county of Scott and State δ of Iowa, have invented a new and useful Oil Burner, of which: the following is a specification.

This invention relates to improvements in oil burners, the object of the invention be10 ing to provide an improved burner of the character set forth having an adjustable air nozzle so constructed that the fuel is at all times in advance of the air, whereby the air and oil may be mixed to suit the particular W requirements so as to obtain the maximum combustion, and which burner is simple in construction, inexpensive to manufacture and highly efficient in use.

With the foregoing and other objects in 20 view, which will appear as the description proceeds, the invention consists in the novel features of construction and combination of parts which will be more fully described hereinafter and particularly pointed out in 25 the claim.

In the drawings accompanying and forming part of this specification,

Fig. 1 is a longitudinal section of an oil burner having my improved air nozzle ap³⁰ plied thereto; and

Fig. 2 is a cross section thereof, taken on the line 2—2 of Fig. 1.

The same characters of reference designate the same parts in the different figures ³⁶ of the drawings.

Referring to the drawings, 2 designates a tubular member which forms the main body of the burner and which may be made of brass or any other suitable material. This ⁴⁰ member is provided with a pair of radial extensions 3 and 4 communicating with the interior of the burner at opposite sides thereof. The burner is provided at its rear portion with an enlarged chamber 5, in which ⁴⁵ is adapted to be seated a valve 6 having secured to its stem a member 7 which is threaded in the end of the burner, an operating handle 8 being secured to the outer end of the valve stem for operating the ⁶⁰ valve toward and from its seat. A cap 9 is threaded on the end of the burner and is provided with an opening for the passage of the valve stem. A tube 10 is threaded into the burner in communication with the

Serial No. 306,326.

chamber 5, the tube being contracted at its 55 opposite end, as shown at 11, to form an oil nozzle. The. burner, is also provided with an enlarged chamber 12 in front of the connection of the. oil burner tube with the burner, the chamber 12 being shut off from. ⁸⁹communication with the chamber 5 and the tube 10, A tubular connecting sleeve 13 is threaded, into the front end of the chamber 12 and encircles the oil nozzle tube 10, the bore of said connecting member being of ⁸⁵larger diameter than the tube, thereby leaving a space outside of said tube in communication with the chamber 12. In the extension 4 is threaded the usual oil supply pipe 14 communicating with the chamber 5, while 70 in the extension 3 is threaded an air supply pipe 15 communicating with the chamber 12.

My improved air nozzle comprises a tubular member 16 adapted to be adjustably secured around the connecting member 13 75 and also encircling the oil nozzle tube 10, and is contracted at its front end to correspond with the contraction of said oil nozzle. For adjusting the air nozzle on the connecting sleeve, the nozzle has formed on 80 its rear end a split collar 17 having a pair of radially extending perforated ears 18 through which passes a bolt 19 for tightening the collar around the sleeve. It will thus be seen that the nozzle may be secured ⁸⁵on the sleeve at any point in the length of the sleeve and that the outlet end of the air nozzle will at all times be at the rear of the outlet end of the oil nozzle.

In the operation of the burner oil is sup- ⁰⁰plied to the chamber 5 through the supply pipe 14, the flow of oil to the nozzle 11 being controlled by the valve 6, while air is supplied to the chamber 12 through the pipe 15. By adjusting the nozzle 16 on the sleeve ⁹⁵13 the air may be delivered as near to the flame at the end of the oil nozzle or as far therefrom as may be desired to produce the maximum combustion.

While I have described in detail the struc- ¹⁰⁰ture herein illustrated, it is to be understood that I do not thereby limit my invention to the precise features of construction shown, as I am aware that many mechanical changes and modifications may be made therein with- ¹⁰⁵out departing from the spirit and scope of the invention as set forth ip the claim, hereto appended.

1,452,020 α