US1218777A - Oil-stove. - Google Patents

Description

W. R. JEAVONS.

I OIL STOVE. APPLICATION FILED IULY 30. 1913.

1,21 8,777. Patented Mar. 13, 1917.

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UNITED STATES PATE 'i i OFFICE.

WILLIAM B. JEAVONS, OF CLEVELAND, OHIO.

OIL-STOVE.

Specification of Letters Patent.

Patented Mar. 13, 1917.

Application filed July 30, 1913. Serial No. 782,005.

the type shown in my application No.

7'l9,585, filed February 20, 1913.

In the operation of stoves of thelcharacter referred to, perfect combustion depends upon the air circulation and especially upon the balancing of the air drafts, one draft passing upwardly within the wick tubes and through the perforations in the spreader over and adjacent to the top of the wick and the other draft passing through the perforations in the distributer or gallery surrounding the outer wick tube and passing up through the restricted opening between the top of the distributer and the top of the flame spreader. Where a stove of the character referred to is operating in a strong air current, the current has a tendency to produce a downward suction within the inner wick tube which will reverse the draft, if sufficiently strong, and, when not sufficiently strong to reverse the draft, will so decrease the draft of air flowing through the inner wick tube as to disturb the balance of drafts referred to hereinbefore; in either case, the burner will smoke. In a construction like that shown in my application above referred to where the wick tubes project downwardly below the bottom of the font. the draft through the inner wick tube is particularly susceptible to partial and even complete re.- versal, when'the air current is strong. For the purpose of preventing this highly undesirable action and at the sametime retain the advantages which result from the shape of font or reservoir shown herein and in the aforesaid application, I have provided a wind shield, preferably attached to the bottom of the font or reservoir and surrounding the lower ends of the wick tubes, which shield absolutely prevents the undesirable action referred to, even in the presence of exceedinglystrong air currents.

In the drawings forming part hereof,

Figure 1 represents a vertical sectional view through the lower portion of a stove or heater having my invention applied thereto and Fig. 2 a bottom plan view of the said stove or heater.

Describing the various parts illustrated herein by reference characters, 1 denotes a stove base comprising a ring having the depending legs 2. 3 is a heater drum mounted on a plate 4t which is pivoted to the base, as shown at 5. 6 and .7 denote latch members for securing the free or swinging end of the plate 4 to the base ring. The foregoing parts may be of any ordinary and approved construction and, in their details, form no part of this invention.

Supported within the base frame 1 is the font 7. This font, as is the case with the font of my application No. 749,585, is a shallow metal reservoir having central vertically alined openings through which eX- tends the outer wick tube 8, said tube being soldered or otherwise firmly secured to the edges of these openings, as through the flanges 9 and 10. The bottom of the font is preferably inclined downwardly from the peripheral toward the central portion thereof and the bottom is provided with annular corrugations 11 surrounding the central opening. 'The innermost corrugation 11 is provided with a substantially vertical shoulder 12 which forms a soldering surface for the upper wired edge of the wind shield. 8 denotes the inner wick tube, 13 the spreader which is mounted within the top of the inner wick and 14 the perforated gallery extending downwardly from the central opening of the drum 3 to the top of the font 7. The spreader and gallery may be of any approved construction, the former being of the type shown in my Patent No. 964,262 issued July 12, 1910.

Surrounding the lower ends of the wick tubes is the wind shield. This shield comprises a cylindrical sleeve 15 having a wired upper edge 16 which is soldered within the shoulder 12. The cylindrical outer. wall of this shield projects downwardly below the lower ends of the wick tubes, thence horizontally and radially inwardly, as shown at 17, and has its inner portion bent or deflected upwardly within the interior of the inner wick tube as shown at 18. The cylindrical wall 15 is provided with a plurality of perforations 19 the bottoms of the perforations extending preferably a short distance below bottoms of the wick tubes, while the central upwardly flaring portion 18 is about 1; inch smaller in diameter than the inner wick tube, thereby providing an annular passage around, beneath, and within the wick tubes. As a result of this construction, when the heater is operating, in a strong current of air, the air striking the outer wall enters the perforations 19, passes under the wick tubes, and is directed upwardly into .the inner wick tube. In a strong wind the amount of air flowing through the perforations and forcedupwardly into the inner wick tube more than equals any a-spirating action or suction that may be produced by the wind blowing across the bottom of the wind shield and more than balances the tendency of such draft across the bottom of the shield to destroy the upward draft within the inner tube. 7

Having thus described my invention, what I claim is:

1. The combination, with a font, of wick tubes extending therethrough and project ing therebeneath, of a wind shield surrounding the lower ends of the tubes, said wind shield comprising a wall surrounding and spaced from the tubes, an inwardly directed wall beneath and spaced from the bottoms of the tubes, and an upwardly projecting wall within and spaced from the inner wick tube, the outer wall being perforated.

2. The combination, with a font, of wick tubes extending through and beneath the font, and a wind shield applied to the bottom of the font and surrounding the lower ends of the wick tubes, said shield being spaced exterior-1y from the outer wick tube and from the bottoms of both tubes and being interiorly spaced from the inner wick tubes, whereby there is provided an annular passageway for air surrounding the lower ends of the tubes and extending beneath the tubes and upwardly within the inner tube.

3. The combination, with a font, of wick tubes extending through said font, and a wind shield applied to the bottom of the font and extending beneath and spaced from the lower ends of the wick tubes and extending upwardly within and spaced from the lower portion of the inner wick tube, whereby a continuous air passage is formed beneath said tubes and upwardly within the inner tube.

4. The combination, with a font, of a pair of wick tubes extending therethrough and therebeneath, a wind shield carried by the font outside of the outer wick tube, said wind shield comprising a portion depending from the font to a point below the wick tubes and spaced therefrom and provided with perforations adjacent the bottom of the outer wick tube, a portion projecting inwardly beneath the wick tube and spaced therefrom, and a portion projecting upviardly within the inner wick tube and spaced therefrom to form an annular passageway therewith.

5. The combination, with a font, of an inner wick tube extending from the top to the bottom of the font, and a wind shield cooperating with the bottom of said wick tube and having a portion extending beneath and spaced from the bottom of the wick tube and a portion within the circumference defined by the wick tube and adapted and arranged to deflect the air upwardly within the same.

6. The combination, with a font, of wick tubes extending through the font, and a wind shield beneath the font and spaced from the bottoms of the wick tubes and extending upwardly within and spaced from the lower portion of the inner wick tube and providing an annular passageway for air which extends beneath the bottoms of said tubes and upwardly within the inner wick tube, the shield being perforated in its outer wall.

7. The combination, with a font, of a pair of wick tubes extending through said font, and an annular wind shield applied to the bottom of the font and extending about the outer wick tube, inwardly beneath the bottoms of said tubes, and upwardly within and spaced from the inner tube, said shield being perforated in the portion which is located outside of the outer wick tube.

In testimony whereof, I hereunto my signature in the presence of two witnesses.

WILLIAM R. JEAVONS.

Witnesses:

JOHN B. HULL, BRENNAN 13. WEST.

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

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