US1035459A - Oil-burner. - Google Patents

Description

J. H. T. & V. H. MILLS.

OIL BURNER.

APPLIOATIQN FILED JUNE3,1911.

1,035,459. Patented Aug. 13,1912.

2 SHEETS-SHEET 1.

VIZ/Halls COLUMBIA PLANOURAFH $0., WASNINGYON. D. C.

J. H. T. & V. H. MILLS.

OIL BURNER.

APPLIOATION FILED JUNE 3, 1911.

Patented Aug. 13, 1912.

2 SHEETS-SIIEET 2.

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COLUMBIA PLANOGRAPM 60.. WASHINGTON. n. c.

UNITED STATES PATENT OFFICE.

'JOHN H. '1. MILLS AND VIRGIL H. MILLS, OF HUBBARD, TEXAS.

OIL-BURNER.

Specification of Letters Patent.

Application filed June 3, 1911.

Patented An". 13, 1912.

Serial No. 631,168.

To all whom it may concern:

Be it known that we, JOHN H. T. Mums and VIRGIL H. MILLS, citizens of the United States, residing at Hubbard, in the county of Hill and State of Texas, have invented certain new and useful Improvements in Oil-Burners, of which the following is a specification.

This invention relates to hydro-carbon burners and more particularly to that class of burners in which a jet of steam or air is employed for atomizing the fuel'at the burner tip.

The primary object of the invention is to provide an oil burner, especially designed for cooking and heat-ing stoves and which shall successfully operate in case the water fed to the generator is impure or contains a large proportion of minerals, without liability of clogging or otherwise obstructing the steam passage at the burner tip, or without requiring frequent cleaning of the parts.

A further object is to provide a burner having a conical shaped steam or other fluid outlet and provided with a fuel conductor discharging at said outlet, thus to spread the steam and insure perfect combustion of the fuel.

A further object is to provide a burner including a hollow body portion pierced by a conical shaped steam outlet, the inner edge of which is relatively thin and disposed flush with the inner wall of said body portion so as to prevent the lodgment of foreign particles at the conical outlet and also to permit cleaning of the interior of the burner and inner face of the steam outlet at one operation by means of a swab or other suitable tool.

A further object is to provide a safety valve by means of which the steam at the burner tip may be maintained at a constant pressure, said valve being removable so as to permit access to be readily had to the interior of the burner to facilitate cleaning the latter when necessary.

A further obj ectis to provide novel means for supporting the valve on its seat, and means for permitting the removal of the valve without disturbing the adjustment of the valve supporting spring.

A still further object of the invention is generally to improve this class of devices so as to increase their utility, durability and efliciency.

Further objects and advantages Will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

For a full understanding of the invention and the merits thereof, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a perspective view of a cooking stove provided with a hydro-carbon burner constructed in accordance with our invention; Fig. 2 is a perspective view of the burner detached; Fig. 3 is a transverse sectional view, showing the construction of the steam outlet; Fig. 4: is an end elevation; Fig. 5 is a longitudinal sectional view; Fig. 6 is a transverse sectional view; Fig. 7 is a perspective view, illustrating a modified form of burner; Fig. 8 is a side elevation of Fig. 7 Fig. 9 is a transverse sectional view, showing the construction of the steam outlet; Fig. 10 is a longitudinal sectional vlew.

Corresponding and like parts are referred to in the following descri tion and indicated in all the views of t e drawings by the same reference characters.

The improved burner forming the subject matter of the present invention is principally designed for use in connection with cooking or heating stoves, and by way of illustration is shown applied to a cooking stove of the ordinary construction in which 5 designates the fire box, 6 the cover and 7 the usual lids.

The device comprises a casing 8, preferably cylindrical in shape, as shown, and having one end thereof threaded at 9 for connection with a steam generator 10 of any suitable construction, said generator being extended within the firc box 5 and having its rear end provided with a conductor 11, through which water is supplied to the member 10 for the purpose of generating steam for delivery to the burner. One side of the casing 8 is provided with a flat face 12 having a substantially conical shaped depres sion 13 formed therein and communicating with the steam chamber 14 of the casing, as shown, said depression 13 forming a steam outlet and having its inner edge relatively thin and. disposed flush with the inner wall of the chamber 14, as indicated at 15, so as to prevent the lodgment of lime and other foreign matter in the water on the lip 15, which would have a tendency to clog the steam outlet and obstruct or otherwise interfere with the proper operation of the burner.

Extending transversely through the casing 8, at the Hat face 12 thereof, is an oil conductor 16, one end of which is extended to a suitable source of oil supply, while the other end thereof pierces the tapered or conical shaped steam outlet 13 and is provided with either a plain or beveled end 17 so as to spread the fuel and thus insure perfect combustion thereof. The free end of the fuel conductor 16 may be arranged at any angle or inclination with reference to the wall of the steam outlet, according to the amount of spread desired to be lHlPHTted to the flame, it being preferred, however, to arrange the outer end of the conductor 16 at an angle of approximately forty-live degrees with respect to the steam outlet as such an inclination has been found most desirable when the burner is used in connection with cooking and heating stoves. It will here be noted that by making the steam outlet substantially conical in shape with the free end of the oil conductor intersecting the steam discharge orifice, a portion of the steam will surround the discharge end of said oil conductor, thus to thoroughly atomize the fuel and cause the flame to be concentrated. below the generator 10 and directed upwardly in contact with the caps or lids 7 of the stove. It will also be noted that by having the interior of the casing 8 entirely unobstructed, with the inner edge or lip 15 of the steam outlet disposed flush with the inner wall of the steam chamber it, both the inner face of the steam outlet and said steam chamber may be cleaned at one operation, by merely passing a swab or other suitable tool through the casing.

Secured to or formed integral with one end of the casing 8, is a laterally extending arm 18 having spaced flanges 19 and provided at its free end with a. transverse bar 20 spaced from the body of the arm to form. an opening 21 communicating with the space between the flanges 19, as shown, to permit the passage of a valve supporting member, indicated at 22. -The valve supporting member 22 is preferably formed of a single length of spring metal having an intermediate portion bent upon itself to form spaced arms of difierent lengths, the short arm being provided with a laterally curved terminal 23 and the long arm of the spring being extended over the adjacent end of the casing 8 to form a support for a valve 24. The valve 24 is preferably in the form of a flat metal disk having a pin 25 extending laterally therefrom and journaled in a suitable opening in the long arm of the supporting member 22, the head of the pin 25 being upset so as to form a permanent connection between the member 22 and valve, while at the same time allowing the disk or valve 2 1 to rotate and thus firmly seat itself on the adjacent end of the casing 8, the latter being inclined or beveled at 26 in order to insure a good contact between the parts.

Extending transversely through the valve supporting member 22, at the bent portion thereof, is a screw 27 having a nut 28 thread ed thereon and by means of which the tension of the arms comprising the valve sup porting member may be controlled at will so as to regulate the pressure exerted by the valve on the valve seat 26, there being a similar nut 29 engaging the threaded end of the screw 27 and bearing against the nut 28 for locking the parts in adjusted position.

it will here be noted that the curved terminal 23 of the short arm of the valve supporting member, serves to guide said arm in the opening 21 when positioning the valve upon or removing said valve from the casing 85. Thus it will be seen that when it is desired to clean the interior of the casing 8, it is merely necessary to exert a slight longitudinal pull on the valve supporting member 22, when the valve, together with said supporting member may be readily detached from the casing without affecting the tension of said valve supporting member. With the valve 2 removed, the cleaning of the interior of the casing 8, as well as the inner face 15 of the steam outlet may be readily efiected by passing a swab or other suitable tool longitudinally through said casing, as before stated.

The flanges 19 not only serve to reinforce and strengthen the arm 18, but also serves to center the valve supporting member 22 on the casing 8, while the curved terminal 23 of the valve supporting member, by engagement with the valve casing 8, serves to limit the inward longitudinal movement of said member, thus to insure proper seating of the valve 2 1 under all conditions.

In Figs. 7 to 10 of the drawings, there is illustrated a modified form of the invention especially designed for use when soft water, or water not containing such a large percentage of minerals, is employed for generating steam for delivery to the burner. In this form of the device, that portion of the casing 8 opposite the threaded end thereof, is formed. with an enlargement 31 having a tapered steam outlet 13 pierced by a fuel conductor 16 of the construction similar to that shown in Fig. 3. The enlargement 31, however, is provided with a conical steam chamber 32 which communicates with the steam chamber in the casing 8, said conical steam chamber 32 being normally closed by a valve 33. The valve 33 is retained in posi tion on its seat by a spring 34, one end of which is secured to the inclined face 35 of a supporting arm 36, while the other end thereof is provided with a lug fitting in a depression formed in the adjacent surface of the valve 33. In this case, the valve is provided with a laterally extending handle 37 to facilitate removing the valve when it is desired to effect the cleaning of the interior of the burner. The outer end of the spring 34- is secured to the inclined face 35 of the arm 36 by means of a screw 38 so that by adjusting the screw, the tension of the spring may be regulated, said screw being locked against rotation by a nut 3 Extending laterally from one side of the arm 36, is a lug 40, which, by engagen'lent with the adjacent edge of the spring 34, serves to prevent lateral movement of said spring. Thus it will be seen that by exerting an upward pressure on the handle 37 of the valve and swinging said valve and spring 3 laterally until the spring clears the lug 410, the

,valve may be entirely detached from the spring so as to expose the chamber 32 and thus permit cleaning of the interior of the casing.

By removing the valve 2st shown in Fig. 2 of the drawings and inserting a suitable plug in the open end of the casing S, the burner may be used with good effect on relatively large furnaces.

A burner constructed in accordance with this invention, can be thoroughly cleaned without disturbing the oil or water controlling valves and without putting out the fire during the cleaning operation, as the raw oil at the discharge end of the fuel conductor keeps the flame burning and the steam atomizes said raw oil as soon as the safety valve is replaced.

It will of course be understood that the burners may be made in different sizes and shapes, and that steam, air or other fluid may be employed for atomizing the oil. It will also be understood that the steam outlet may be made either round, oval, elliptical or any other desired shape without departing from the spirit of the invention.

Having thus described the invention, what is claimed as new is:

1. An oil burner including a casing having a steam chamber and provided with a substantially conical outlet, an arm extending laterally from the casing, a safety valve yieldably supported on said arm and forming a closure for one end of the steam chamher, and a fuel conductor discharging at said outlet.

2. An oil burner including a casing having one end thereof provided with means for connection with a steam generator, a valve extending transversely across and bearing against the other end of the casing, there being a substantially conical shaped steam outlet formed in the casing and communicating with the interior thereof, and a fuel conductor piercing the casing at the steam outlet.

3. An oil burner including a casing having an unobstructed steam chamber, there being a substantially conical outlet leading into the interior of the casing, a valve forming a closure for one end of said chamber, and a fuel conductor extending transversely through the casing and dischargmg at the steam outlet.

An oil burner including a casing having a steam chamber and provided with an outlet, an arm extending laterally from the casing, a yieldable support mounted on the arm, a valve carried by the support and forming a closure for one end of the casing, and a fuel conductor discharging at said outlet.

5. An oil burner including a casing having one end thereof provided with means for attaclunent to a steam generator and its other end beveled to form a valve seat, said casing being provided with a steam outlet comuumicating with the interior of the easing, a fuel conductor extending through the casing and discharging at the steam outlet, an arm projecting late ally from said casing, a support detachably secured to the arm, and a safety valve carried by the support and engaging said valve seat.

(5. An oil burner including a casing having a steam chamber and provided with an outlet, a fuel conductor discharging at said outlet, an arm extending laterally from the casing and provided with spaced flanges, a supporting member having one end thereof seated between said flanges, a valve mounted on the other end of the supporting memher and forming a closure for one end of the casing, and means for regulating the tension of said :nip iorting member.

7. An oil burner including a tubular casing having a steam chamber and provided with an outlet. a fuel conductor discharging at the steam outlet, an arm extending laterally from the casing and provided with a transverse bar spaced from the body of the arm to form an opening, a valve support including spaced arms of differentlengths, one of which is adapted to enter the opening in the arm of the casing, a valve mounted on the other arm of the valve support and forming a closure for one end of the casing, and means piercing the arms of said valve support for regulating the tension thereof.

8. An oil burner including a tubular casing having an interior chamber and provided with intersecting steam and fuel outlets, an arm extending laterally from the casing and provided with spaced flanges, a transverse bar spaced from the body of the arm to form an opening, a valve supporting member including spaced arms, one of which is shorter than the other and provided With a curved terminal adapted to pass through said opening for engagement with the flanges, a Valve mounted 011 the other arm of the supporting member and forming a closure for one end of the casing, and means piercing said arms for regulating the pres sure exerted by the valve on the casing.

9. An oil burner including a tubular easing having one end thereof threaded for connection with a steam generator and provided with intersecting steam and fuel outlets, an arm projecting laterally from the casing and provided with spaced flanges and having-an opening near one end of said arm, a valve supporting memherformed of a single length of spring metal bent upon itself to produce spaced arms of difierent one end of the casing, a screw piercing both arms of the valve supporting member, and main and auxiliary nuts engaging the threads on the screw.

in testimony whereof, we affix our signatures in presence of twowitnesses.

JOHN H. T. MILLS. VIRGIL h. MILLS. (Vi tnesses M. A. J. OARLISLE, T. E. FARBKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

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