US1429137A - Oil burner - Google Patents

Description

N. HALE. olL BURNER. APPLICATION FILE JUNE 17. 1921.

Patented Sept. 12, 1922'.

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.. In l v l iii A Patented Sept. 12, 1922..

NOAH HALE, or onexirnivoeen, Tennessee, Assreivonfro. HENRY 'none ANDl HENRY riUnsT, Berner MEMPHIS, Tnnnnssnnaj t, Y

vori.l isniaivnn.v

Yiippiim'ion filed time 17, 192i,` seriai no. avente.4 i I' ing oil and is intended to be used primarily in cook stoves and ranges for cooking food,

heating water and the like. It is an object of my' inventionto provide improved means kitchen range.

Another object of my invention is the provision of improved .means for automatically regulating the admission ofair in a `Xed ratio to the amount of oil vapor adlmitted to the burner.

A further Objectis to provide improved means for starting the burner.

Referring to the accompanying drawings.

which are made a part hereof and on which similar reference characters yindicate vsimilar .v

parts,

Figure 1 is aside elevation of my im-r vproved device, v

Figure 2 a plan view thereof, and Figure wa section on lineB-B of Figure 2. i

Fig. 4 starting burner.

Fig. 5 is a sectional .viewof 'the j et" noz- .z le of the starting burner.

In the drawings reference Characters 5 and '6 indicate y resiirectively vthe .upper andA lower members of the outer shell of the burner, these members having outwardly eX- tending flanges connected by bolts 7 in the usual manner and provided with an asbesl' tos gasket 8 of usual forni to prevent leakage.

est points i-gnitionslots 9 lextending there# through, the upper margins of the ridges acting as lips for theignition slots, and

the ribs being separated by transversexde-` pressions 10.

A baffle in the `*form ofy avliat plate 11 eX-` tends horizontally acrossL the one chamber Y ofthe shell andis supported atvthe levelof 'the joint between the members `5 and 6 by a reduced `flange engaging between them. This is ai side view ofa ymodifiedr form of The upper member is `formed with ridges or ycorriigations having .at .their high-- baffle vhasta' row of holes'12y at intervals run-l ,14 and a passage 15 extending forwardfroin the pan. I have Vshowin the pan andthe the member 5 though they 'n'i'ay' bef; formed separately and attached thereto:- A' `pe`rfo.

y y rated member -16 is inserted in the forward for heating waterin the water back of a end ofpassage 15 and extends therefrom to 7o the forward endof the burner. l'prefer to make this member of wire lscreen;though it'` may'gbe formed of' perforated sheet lmetal or otherwise. Y

At one side of the'meniber 5 1 attach thereto or"f ormyintegral therewith a tray or receptacle 1 7 infvwhich-a loose mass kofas- `inember719under'pressure of fuel and keep the opening vfree from carbon and" dirti'at the saine time insuring proper spray and Acombustion of fueldue -to itsup anddown and rotary movement'.` Preferably the coil is bent to atriangular shape as at 18' in Figure 4, as this increases the heating effect and' secures bettery vaporiZ-ation, IA flame l s -areader 21 formed as' bent I platefto cover j 't ecoil'and having vdown'warclliy projecting sides'to cause the flameto Vact onall sidesof the fmain coil rests at'itslo'wer edges on the tray rand eXtendsover"the` coil1'184 and is fastened tofan upwardly projecting ,flange 'of member 6 by a screw at 22,. `Aiiyunvola--y tilizedoil' dripping from valve will be caught bythe tray', which maybe provided with means for `draining /it,' 'if desired.

. Fuel maybe admitted fto the coil y18 `'from a pipe 23 by a valve 24 having a knuilled head 24.` A second valve 25 having a knurled head l25 is provided to admit liquid fuel' to the vaporizing coil 26 extending from one end of the tol the 'other and back t 65 walls `of the passage asbein'g integral with i again. The latter valve leads to a small pipe 27 which is connected by a vreducing elbow 28 to coil 26, and the coil 26 at its opposite end is threaded to the stem of a 'l1- joint forming the barrel of the rotary main spray-valve 29. The stem 3Q of this valve y extends through the body .29 and has threaded connection therewith at 3l, and the conical forward end of the same engages a correspondingly tapered seat at 32 held in place by a flanged nut threaded on the barrel. At the rear end of the valve body is a flanged nut 33 holding a packing in place about the valve stem 30 which has a knurled head 34k. The ceil 26 has within it a bundle of retarding filaments 26 which gradually tapers from a bundle nearly filling the tube beneath the fiame spreader 2l to a single filament lying more or less near the fuel feed valve 25. A similar bundle of filaments i3 or 43 is preferably used in coil 18 or 18 for a similar purpose.

An arm 35 extends at right angles to the stem of the valve 34 and is connected by a link 36 to a pivoted cover 57 adapted when the valve is closed to rest on the combined air intake and Catch-basin le; and as the valve stem is turned to open the valve the cover is raised to admit more air to the mixer. Downwardly extending projections 38 and 39 extend across the low-ver member 5 and serve as supports for the entire device.

ln the operation of my vaporizing device liquid fuel is first poured into the tray 17 where it is taken up by the wick and may then be set on fire. After this has been lighted the valve 24 is opened to feed oil to the coil by turning the knurled head 24eand the fuel. flows through the coil and lifts up and rotates the corkscrew device 20. rlhc oil in the coil will become vaporized by the heat and the'vapor passing through the valve 19 will become ignited and the flame therefrom will be spread by the spreader 2l over.

the coil 26. Before combustion has proceeded so far fuel will have been admitted to pipe 27 and'coil 26 by turning head 25 of valve 25 and the vaporizing coil 26 will be filled with liquid fuel except for the space occupied by the filaments 26. Vaporisation 0f the fuel is assisted by the heating of the filaments 26 to whichheat is conducted from the surface of the coil. 26, the heat being carried back through the coil in this manner for some distance to gradually warm the fuel and assist in vaporization. When the coil 26 is sufiiciently heated the main spray valve is opened by turning the head 34 and this admits volatilized fuel to the passage l5 and at the same time lifts the cover 37 to admit air thereto. Any unvolatilized fuel admitted to the passage l5 will collect in the bottom of the same and in the catch-basin 14 from which it can be drained olf in any convenient manner. The

heated spray of volatilized fuel passing forward 'through the passage will go through the perforated tube 16 and rise therefrom. Part of the fuel will pass 'through openings l2 and part through the slot .l which is made narrow at the front to cause some of the fuel to pass to the rear. The general form and arrangement of the openings is well adapted to distribute the fuel evenly under the entire surface of the member 6. As the fuel issues from the slots 9 it will burn uniformly over the upper surface of the device and will continue to heat and vaporize the fuel in the coil 26. lifter vaporization is well started in the coil 26 the fuel is turned off from coil i8.

`When my device is to be used in connection with range having a water-back or front holes are drilled at et() at the lower ends of the grooves l0, and at the proper side of the member 6 to give the desired results.

l may combine with the mechanically operated air valve an automatically controlled valve as by providing one or more ope*- 'ngs ll in the rear wall 4of the pan ltwith a normally cl sed gate or gates d2. is the gas is turned on the draft will open the gates if suffi lient air is not supplied by the valve 37. The link 36 may be arranged to unhook from eye 35, if desired, so that only Vthe automatic valve will be in use, or the valve 87 may be entirely omitted.

Having thus fully described my said invention, what l claim as new and desire to sicure by Letters Patent, is:

l.. A burner comprising, an elongated lchamber having transverse ignition slots at the tog, a perforated baflie plate dividing the chamber into upper and lower portions, a minutely perforated tube below the baffle V)late and means for admitting vaporized fuel to pass successively through said tube and baffle to the ignition slots,y substantially as setforth.

2. A' liquid fuel burner comprising, an elongated chamber having transverse lignition slots at the top, a perforated baffle plate dividing the chamber into upper and lower portions, a tube of wire screen beneath said baffle plate, and means for admitting vaporized fuel to pass successively through said tube and baffle to the ignition slots, sub st-antially as set forth.

3. A liquid fuel burner comprising an elongated chamber, a perforated horizontal baffle plate, an upper member above said plate having transverse ignition slots and transverse grooves between them and ignition openings at the lower end of said grooves at one side of the burner, substantially as set forth.

4l. A. liquid fuel burner comprising an upper member having ignition openings, a vaporizing coil extending over said openings,

a valve to admitl fuel thereto, a valve to end of the auxiliary coil, each of said coils including a bundle of metallic filaments of varying lengths so as to taper from the outlet end back toward the inlet end of each coil, substantially as set forth.

5. A liquid fuel burner comprising an upper member having ignition openings, a feed coil extending over said openings, a valve to admit fuel thereto, a valve to transmit vaporized fuel therefrom to the interior of the burner, means for initially heating a portion of the coil including a pan, an auxiliary triangular coil having one angle extending downward into the pan, a valve admitting fuel to the coil and a valve at the end of the coil for controlling the feed of fuel therefrom, substantially as set forth.

-6. A liquid fuel burner comprising an upper member having ignition openings, a feed coil extending over said openings, a rotary valve to admit fuel thereto, a rotary valve to transmit vaporized fuel therefrom to the interior of the burner, means for initially heating a portion of the coil including an auxiliary coil, a valve having a hollow sleeve and a plunger having at its lower end a corkscrew formation, said plunger being adapted to move up and down and also to rotate under the pressure of the fuel, substantially as set forth.

7 A liquid fuel burner comprising a heating surface, a feed pipe forming a coil over said surface and bent vertically downward at the outlet end, means for initially heating a portion of the coil including a flame spreader extending over a portion of the coil, heating means fbeneath the spreader, and a bundle of looseincombustible filaments of varying lengths in said coil extending from the locality of said flame spreader toward the source of fuel, the bundle of filaments tapering from the locality of the spreader toward the source of fuel, substantially as set forth.

8. A liquid fuel burner comprising a chamber for vaporized fuely and an ignition surface above the chamber and communicating therewith,-means for supplying fuel to the chamber, a valve for controlling thesupply of fuel to the chamber, a pan beneath the valve, said pan also forming a passageway for air, a cover for said pan regulating vthe passage of air and means for simultane ously operating said valve and said cover, substantially as set forth.

9. A liquid fuel burner comprising a chamber having ignition slots aty the top, a v y* transversebaffle in the chamber, an expansion coil above the chamber, a valve leading from the coil into the chamber, a catch-basin beneath the valve and having a bottom substantially on a level with that of the chamber, a cover for the catch-basin serving as an air-valve and means to operate-said valves simultaneously, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Chattanooga, Tennessee,

this 7th day of April, A. D. nineteen hundred and twenty-one.

NOAH `HALEl [1.. s]

Witnesses:

GEO. R. STILLMAN, C. E. KIRKrATRICK.

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