US766251A - Oil-burner. - Google Patents

Oil-burner. Download PDF

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Publication number
US766251A
US766251A US17954503A US1903179545A US766251A US 766251 A US766251 A US 766251A US 17954503 A US17954503 A US 17954503A US 1903179545 A US1903179545 A US 1903179545A US 766251 A US766251 A US 766251A
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chamber
air
body portion
oil
burner
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US17954503A
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John Hewitt
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John Hewitt
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D5/00Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel

Description

No. 766,251. PATENTED AUG. 2, 1904.
J. HEWITT.
OIL BURNER.
APPLIOATION FILED NOV. 2. 1903.
NO MODEL. 2 SHEETS-SHEET 1. w .1
f x I 7 j No. 766,251. PATENTED AUG. 2, 1904. J. HEWITT.
OIL BURNER.
APPLICATION FILED NOV. 2, 1903.
H0 MODEL. 2 SHEETS-SHEET 2.
fiy'
Patented August 2, 1904.
PATENT Fries.
JOHN HEW'ITT, OF CHICAGO, ILLINOIS.
OIL-BURNER.
SPECIFICATION forming part of Letters Patent No. 766,251, dated August 2, 1904.
Application filed November 2,1903. Serial No. 179,545. (No modelfi T0 (LZZ w/tom it may concern:
Be it known that 1, JOHN HEWITT, of Chicago, in the county of Cook and State of lllinois, have invented certain new and usefulImprovements in Oil-Burners; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.
This invention is an improvement upon the hydrocarbon-burners shown in the patent to Frederick A. Curtis, No. 743,376, of N ovember 3, i903; and its objects are, first, to improve the action of such burners and facilitate their adaptation to ordinary stoves and furnaces; second, to insure a better feed of air to such burner, and, third, to dispense with the somewhat troublesome and ill-fitting plate I), described in said patent, as a cut-off for air exterior to the burner and which has to be removed whenever the wicks have to be renewed.
A further object of the invention is to provide the burner with additional mixing or combustion chambers whereby more complete and perfect combustion of the inflammable gases will be realized, and consequently greater efficiency attained with a given expenditure of fuel.
The invention consists, first, in providing the burner with adepending supportingskirtflange, and, second, with superposed combustion or mixing chambers, whereby the objects above enumerated are realized.
The invention is clearly illustrated in the accompanying drawings and will now be described with reference thereto.
1n the drawings, Figure 1 is a vertical section through the burner as located in a fire box or pot of an ordinary stove. Fig. 2 is a similar view of a slight modification thereof. Fig. 3 is a similar view of another modification. Fig. L is a top plan view of the font or body portion with the retort or hollow casting removed, and Fig. 5 is a bottom view of the hollow casting.
The body portion or font A and hollow casting or retort B are generally similar in construction to those shown in the said Curtis patent. Said body portion has an oil receptacle or well A, which may be closed by a permeable plate A and it has an interior inverted cone (1" with a central aperture 11, through which deposits in the cone can escape. A second permeable plate A may be placed over plate A to prevent oil escaping from the well except by passing through said plates. As an equivalent for these permeable plates the well maybe filled with loose fibrous asbestos or other permeable material A, which will allow the oil to gradually rise to the surface. ()i] can be fed to the well through a pipe A from anysuitable supply, the feed being preferably by gravity.
The body portion or font shown in Fig. 3 is constructed substantially as shown and described in said Curtis patent; but .I have improved it by providing a deep skirt-flange 2, by which the body portion is supported several inches above the grate. Said skirt-flange surrounds the body portion and is preferably imperforate below it. .In practice I propose to make these skirt-flanges of such contour and diameter at bottom that they will practicall y cover the surface of the grate in the firebox of the stove in which the burner may be placed; but if the skirt-flange does not spread over the entire grate-surface a sheet or plate 3, of tin or other suitable material, may be placed over the grate and the burner set thereon, said sheet 3 having an opening 3 to admit air to pass up into the skirt or hood thereof, as indi -atcd in Figs. 1 and 3 of the drawings. The skirt-flange may be formed with or separately from the body portion, but is connected therewith so as to support it, as at 1, leaving passages l for air to pass up to the hollow casting B, as hereinafter explained. Preferably the skirt-fiange extends above the body portion, as indicated at 4: in the drawings, so as to form an exterior air-chamber 6 around the casting B and combustion-chamhers.
Upon the body portion A is placed a hollow casting B, which rests upon plate A and is centered on the body portion and retains plates A A or filling A in position. This hollow casting preferably has short internal flanges B at its lower side to press on the plate A or filling r and it has air-inlets If in its outer edge through which air can pass into the casting and has outlets b in its inner edge through which gases generated in the casting B can escape into the central chamber. of the burner above cone (0. The interior of casting B forms the primary combustionchamber, while the space surrounded by the casting B forms the secondary combustionchamber. Said chamber may be partially closed by a deflector C, as shown. Thus far the hollow casting B is substantially like the retort described in said Curtiss patent; but I improve thereon, first, by providing an outwardly-extending flange 5 and by adding one or more superposed secondary combustion or mixing chambers 8, which may be formed, as in Fig. l, by increasing the height of the casting and dividing its interior by partition 9 into a lower heating-chamber 7 and upper mixing chamber 8, said partition being perforated at 9 to allow gases to enter the mixing-chamber 8 from the chamber 7, as shown. In Fig. 2 the mixing-chamber 8 is shown as formed separate from but resting upon the top of chamber 7, while in Fig. 1 these chambers are shown as if formed in one piece. The mixing-chamber 8 has exterior air-inlets 8 and gas-outlets 8, as indicated in the drawings. The flange 5 extends to and fits against the flange 4, forming an annular air-chamber 6 exterior to the heating and mixing chambers through which the air is distributed to the inlets b of the heatingchamber 7 and to the inlets 8 of the mixingchamber 8, as indicated by the arrows in the drawings. This construction prevents violent variations in the action of the burner. The air entering skirt 2 passes through into chamber 6 and thence into the heating and mixing chambers, (when the latter is used.) This skirt-flange 2 and air chamber 6 also prevent gases firing outwardly. The construction,moreover, enables the burner to be readily fitted into the fire-box of an ordinary stove S by simply cutting a sheet 3 to fit within the fire-box thereof. The hood or skirt 2 also raises the burner sufliciently above the grate to prevent injury thereto and cuts off flow of air exterior to the burner, and whenever it is necessary to renew the plates A A or the filling A it is simply necessary to lift the casting B off the part A.
The oil fed to the well A rises slowly to the surface of plate A or filling A and is fired within the heating-chamber 7, air being supplied through inlets from air-chamber 6. Part or all of the burning gases rise into mixing-chamber 8 (when used) and are there further commingled with air entering from chamber 6' through inlets 8, and the burning gases escape through outlets b and 8 as indicated in the drawings. I may perforate the flange 4 at 45, if desirable, to supply the burner with air taken from within the stove and above the grate.
The principal features of my present invention are, first, the supporting skirtflange;
second, the mixing-chamber superposed on the heating-chamber, and, third, the exterior air-chamber communicating with the air-inlets of the heating and mixing chambers.
Having thus described my invention, I claim 1. In an oil-burner, a body portion, having an oil-channel, a permeable, non-combustible material placed in said channel, a hollow casting surmounting said channel providing a heating-chamber having air-inlets and gasoutlets, a skirt-flange forming an air-chamber below such body portion, and providing air-passages whereby air from'the air-chamber is supplied to the air-inlets of the heat ing-chamber, substantially as described.
2. In an oil-burner, a body portion, having an oil-channel, a permeable, non-combustible material placed in said channel, a hollow casting surmounting said channel providing a heating-chamber having air-inlets and gasoutlets, a skirt-flange forming an air-chamber below such body portion, and providing air-passages whereby air from the air-chamher is supplied to the air-inlets of the heating-chamber, and a mixing-chamber above the heating chamber and communicating therewith.
3. An oil-burner comprising a body portion having an oil-well, a skirt-flange around and depending below said body portion and forming an air-chamber below the same, and a heating-chamber placed over the well and having air-inlets communicating with said airchamber, and gas-outlets, substantially as described.
4. In an oil-burner, a body portion having an oil-well, a heating-chamber having air-inlets and gas-outlets; and a skirt-flange forming an air-chamber below the body portion, said air-chamber communicating with the air-inlets of the heating-chamber, substantially as and for the purpose described.-
5. An oil-burner comprising a body portion having an oil-receptacle, and a skirt-flange around said body portion and projecting above it, with a hollow casting placed over the oilreceptacle and having a flange fitted to the top of the skirt-flange to form an air-chamber, substantially as described. 7
6. In an oil-burner, a body portion having an oil-receptacle, a skirt-flange, and a heatingchamber superimposed on said body portion, having air-inlets and gas-outlets; and a flange on the heating-chamber forming with the skirt-flange an air-chamber communicating with the air-inlets of the said heating-chamber, substantially as and for the purpose described.
7. An oil-burner, comprising a body portion, having an oil-well, a casting providing a heating-chamber placed over the body portion, and a mixing chamber above the heatingchamb'er, substantially as described.
8. An oil-burner comprising a body portion having an oil-well, a skirt-flange around said body portion,and a hollow casting placed over the body portion and having a heating-chamber and a superposed mixing-chamber, substantially as described.
9. The herein-described oil-burner, comprising a body portion having an oil-Well, a heating-chamber resting upon said body portion having air-inlets and gas-outlets, a mixing-chamber above the heating-chamber, and a skirt-flange surrounding said body portion and depending therefrom providing an airoharnber below said body portion, and an airchanaber around said body portion communicating with the air-inlets of the heating and mixing chambers, substantially as described.
10. An oil-burner comprising a body por- JOHN HEWVlTT.
In presence of Amos SEG'ELER, ARTHUR F. DOWELL.
US17954503A 1903-11-02 1903-11-02 Oil-burner. Expired - Lifetime US766251A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552301A (en) * 1947-07-30 1951-05-08 Young Cyril Charles Combination oil and gas burner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552301A (en) * 1947-07-30 1951-05-08 Young Cyril Charles Combination oil and gas burner

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