US1491843A - Oil burner - Google Patents

Description

April 29, 1924. L 1,491,s43

H. W. BRENT OIL BURNER Filed Jan. 30. 1921s x a* 1 I T a Wm M" Z 1 H HI gwve ntofo M m. M

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Sum new Patented Apr. 29, I924.

UNITED STATES HENRY W. BRENT, 0F BALTIMORE, MARYLAND.

OIL BURNER.

Application filed January 30, 1923. Serial No. 615,888.

To all whom it may concern.

Be it known that I, HENRY W. BRENT, a citizen of the United States, residing at Baltimore, in the county of Baltimore City and tate of Maryland, have invented certain new and useful Improvements in Oil Burners, of which the following is a specification.

This invention relates to certain new and useful improvements in burners of oil stoves, oil heaters and the like, and it has for a leading object the improvement of the construction of burners of this type and the provision of novel means for the raising and lowering of the wick.

A particular object of the present invention is the provision of wick raising means which will permit a steady unimpeded movement of the wick in either direct-ion, without possibility of jamming, buckling, or the like. v

With the above and other objects in view my invention consists of the parts and the constructions, arrangements and combinations of parts which I will hereinafter describe and claim.

In the accompanying drawing Figure 1 is a side elevation of a burner tube embodying my invention, showing portions broken away;

Figure 2 is an enlarged horizontal sectional view on the line 22 of Fig. .1;

Figure 3 is a detailed sectional elevation of the wick raising means; and

Figure 4 is a detailed perspective of certain of the parts to be hereinafter referred to.

In carrying out my invention, I may use the present improvements in connection with the different types of burners, either with or without the usual spreader plates, and

whether said burners are to be used in connection with oil stoves, oil heaters or like devices. For present illustrative purposes I have shown my improvements as applied to the type of burners disclosed in my prior Patents Nos. 1,082,796, dated December 30, 1913, and 1,313,059, dated August 12, 1919. Any suitable flame spreader, not shown, may be used if desired, in conjunction with my improved type of burner. In the present case, as in the prior patents mentioned, the burner tube 1 is preferably formed with concentric inner and outer walls 1 1" joined at the bottom and adapted to enclose between them, a circular flat wick B, the space between the inner and outer walls of the burner device usually forming afont or reservoir to which oil is supplied in the usual manner.

In the construction of the burner tube such as I have specified, the wick usually has its lower end mounted in and carried by a thin metal casing G, whose lower edge is turned up to receive the bottom of the wick. This casing is genera-lly'made of perforated sheet metal to allow the oil to have free access to the wick, the perforations being ordinarily further employed for the reception of the pointed teeth of the former-type" of wick raising wheel which is mounted on a hand operated shaft. Experience has shown, however, that it is extremely diflicult with the perforated casing and usual sharp toothed Wheel engaging the same, to uniformly or evenly raise and lower the wick, so that the upper edge of the wick may be maintained in a true level position. To secure an even flame 1n devices of this character, the wick should be adjusted to come level with the top of the outside burner tube. This is not always possible with the former burner mechanism, and it has often become necessary to remove the wick and turn the same around, or otherwise adjust it in order to obtain a level wick edge. Considerable diflicultv in the proper leveling of the wick is due tothe fact that the wickis not easily inserted in the burner tube in a true position, and cannot be maintained-true after insertion due largely to the employment of the usual sharp pronged wheel and perforated wheel and perforated sheet metal casing. It has been found that in using this old wick raising means, that the wick seems to be caused to bind more or less on one side than on the other, and consequently will be raised and lowered unevenly and with more or less difficulty. 1 V 1 p In the present'instance I am able to overcome the objections arising from the presence of a crooked wick by eliminating ,the usual pronged wheel and substituting therefor the construction now to be described.

The outer burner tube in the present construction is formed with an offset portion or housing D, which has an opening D therein intermediate its length. Attached to the wick casing C is a rack E, said rack having teeth E upon its opposite edges. The wick and wick holder are so positioned in the burner tube that the rack Ewill enter the channel "formed by the housing D, the remaining circumference of the wick holder fitting snugly against the inner wall of the burner tube. A shaft F supported by two spaced supporting lugs G, G, carries two toothed pinions H, Hf, positioned to respectively engage the two toothed sections of the rack E. The opposite end of the shaft F carries a hand wheel K for the purpose of turning the shaft to raise and lower the wick. V

Each of the lugs G, G has a small portion of its rear edge bent to form a. flange G", said flanges being formed at opposite ends of the respective lugs as clearly shown in Fig. The flanges G are positioned so that the rack E passes above them, as shown in Fig. 3. These flanges are so placed for the purpose ofgiving support to the rack E at this point where the rack is being engaged and operated by the pinions.-

In assembling the wick within the burner tube, the former is positioned as above re ferred to with the rack E within the housmg D. The wick 1s now moved down until the rack is engaged by the pinions H, H,

' vnd further downward movement of the wick is controlled by the pinions.

By means of the racks and pinions the wick may now be raised or lowered as desired, and no impedance or difficulty willoccur in the operation of the wick. double racks and pinions, it is possible to impart a smooth andeasy movement to the wick and eliminate such binding as might occur if only a single rack and pinion were used.

The flanges G on the lugs G, G support;

the rack at the pointwhere the greatest strain is'placed upon it and effectively prevent'any binding or buckling of the rack at that point. By the use of this arrangement there is no point at which the wick, the wick "to the burner tubeand each engaging one of By the provision of the said series of teeth; and means for rotating.

set housing formed therein, a wick holder,

a rack attached to said wick holder and mounted 1n said housing, said rack having a series of teeth at its opposite edges; two

pinions supported by said burner tube, each engaging one of said series of teeth, a shaft carrying said pinions; and a hand'wheel for actuating the said shaft.

4:. In an oil burner, the combination of a burner tube, said tube having an offset housing; a wick holder; a rack attached to said wick holder and mounted within said housing, said rack having teeth at its opposite edges; two spaced lugs attached to said;

burner tube, one on either side of said rack; a shaft supported by said lugs; two pinions mounted upon said shaft, each of said pinions being adapted to engage one series of said teeth; and operating means carried by said shaft, 7

5. In an oil burner, the combination of a burner-tube, said tube having an offset hous ing; a wick holder; a rack attached to said wick holder and mounted in said housing; two lugs mounted on said burner tube on opposite sides of the'path of said rack; a shaft supported by said lugs; two pinionsmounted on said shaft, each pinion being adapted to engage said rack, said lugs having flanges formed at their rear to support said rack; and means for operating said shaft.

6. In an oil burner, thecombination of a burner tube, a wick holder, a rack attached to said wick holder, said rack having-teeth at its opposite edges; two pinions attached to the burner tube and each engaging one of said'series of teeth; supporting flanges rear- Wardly of said rack; and means for operat ing said pinions. I

In. testimony whereof I hereunto athx my signature. 7

HENRY w. BRENT.

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