US2535443A - Oil burner and mixer - Google Patents

Description

Dec. 26, 1950 1 F, MEYER OIL BURNER AND MIXER Filed May '7, 1948 -5. Mr mm M MM mf. www 4 M MK wl m\\ w Z Patented Dec. Z6, 1950 UNITED STATES "PATENT oI-Flcl-z Application May 7, 1948, Serial No. 25,750

(ci. 15s- 94) 2 Claims.

This invention relates to an oil burner and mixer structure.

This application is a continuation in part of the copending application, Serial No. 734,088, filed March 12, 1947 and entitled Oil Burner.

The chief object of the present invention is to adapt the invention disclosed in the aforesaid application to stove use.

The stove, illustrated herein, by way of example only, is disclosed as of the cook stove type. The burner illustrated herein, by way of example only, is disclosed as of the rectangular type as shown in Figs. 3 to 5 of said application, it being understood that the mixer and burner of the present invention may be square, oval or circular, as desired, the burner thereof for example being circular as shown in Figs. 1 and 2 of said application.

The chief feature of the present invention resides in the mixer inclusion with an oil burner in a stove.

A second feature resides in an auxiliary draft structure.

Other objects and features of the invention will be set forth more fully hereinafter.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims:

In the drawings Fig. 1 is a longitudinal central section view of a stove embodying the invention, parts being broken away to show another portion in parallel section.

Fig. 2 is a transverse sectional view of the burner and mixer only of the stove shown in Fig. 1.

In Fig. 1 of the drawings 3 indicates the base of a stove having body portion 8 with top 1 having opening 6 therein detachably closed by cover 5. The stove has smoke pipe connection 4 while the front 3 includes one or more openings such as 3a and 3b.

Disposed in opening 3a and resting upon base 9a is the lower part A of the burner unit. Resting thereon is the upper part B. Resting thereon is the lower part C of the mixer unit and resting thereon is the upper part D of said unit.

In Figs. 1 and 2, I0 indicates the bottom of the base burner unit, I2 the end wall, I3 the side walls, and I4 the lower front wall. The burner body portion I5 includes extension I6 and coextensive therewith is fuel supply conduit 28 having transverse branches 29 and 3U sealed at opposite ends. These branches are disposed at the front ends of troughs 24. Each branch opens or discharges to the same at 29a and 30a, respectively.

The body portion includes rim Il. The ,troughs 24 are shouldered at 24a and said troughs herein are spaced apart and substantially parallel andcoextensive with the bottom portion I5 from nearly rim to rim. In each trough is nested thewick 26.

The several wicks may be and preferably are of the asbestos type.

Included in the body portion between the rims 'and' the troughs parallel thereto are the aligned, elongated, linearly spaced series of air passages 20.

The body portion I5 is shouldered or grooved as at I8 and extension IB is shouldered or grocved as at I9. The burner-base combination has the extension of the base terminating beyond the front wall of the base and said front wall terminates below the bottom level of the body portion. This provides a restricted mouth to the throat of the resulting air chamber. The base serves as a catch basin for surplus fuel oil in the event of accidental ilooding due to control failure.

Herein part C includes legs 35 or the like which nest within rim I1 of unit B and bear upon the top plate of portion thereof. Part C includes an upwardly directly groove 3B and an overhead plate portion 31 having spaced holes 38 therethrough and disposed above the wicks 26 as shown. Y

A canopy or cover 39 has its lower edges 39a seated in grooves 36 and the ends are closed as at 43, the lower edges 40a of which also are` seated in the grooves 36. Each end includes an opening 4I and same may be threaded as indicated at 42 to take a nipple 43 that extends outwardly through opening 3b.

A curved conduit 44 connects at its upper end to said nipple and extends downwardly into the chamber I3 to supply preheated air to the burner. The other end of the canopy may have its opening 4I connected by nipple 45 to the exterior, passing through stove aperture 8a.

When there is sufficient draft in the stack the openings 8a and 3b may be plugged and the aforesaid nipples 43-45 and conduit 44 dispensed with.

The burner A-B operates in the same manner -as disclosed in the copending application, in that air is drawn into chamber I3 and is drawn upward through slots 2|] and the air supports combustion of the fuel supplied to the wick wells and wicks 26. The flames pass upwardly to and thence laterally from beneath the plate 31. Air is supplied by holes 38 to insure complete combustion. Heating of units C and D insures that 3 the air supplied is heated so that chilling of the names will not occur. Also, cover 39 is so disposed that it will radiate heat upwardly to plate 5 immediately thereabove.

Whenever insufficient air supply is encountered the structure as illustrated is employed. Cold air introduced at nipple 45 is preheated and discharged by conduit 44 to chamber I3. This increases vnormal -air ow into chamber 13. Thus if the draft 'on the collar I4 be insuicient, the present invention provides for a compensating artificial draft.

In either event. with or without articial draft, additional heated air is supplied by ports 38 to effect complete combustion and thus eliminate smoking.

The invention claimed is:

1. A liquid fuelY burner unitv adapted for dis;- position within the casing of a stove and adapted to be supported thereby, said burner unit comprising a walled open top base, oneeiid of which opens to the 'atmosphere and providing a lower air chamber, a fuel receptacle having burner wcks supported on the walls "of said base, a plate Supported on said receptacle in vvspacedrelation above said wicks and having `air supply 'ports therethrough, the ports being disposed in align? ment withA said wicks, and a canopy above said plate and having an air intake opening therein.

2. Structure as defined by claim 1 wherein the canopy has openings in two opposite ends, means opening at one end and adapted to open outwardly of a stove casing to form an air supply conduit to the canopy at one of the end openings, and other conduit means connecting to the other end opening and terminating in said air chamber for additional heated air supply.

JOHN F. MEYER.

REFERENCES CITED The following references are of record in the le of'this patent:

UNITED STATES )EATENI'Sn Nurnher Name Date 193,048 Stewart July 10, 1877 Y231,107 Miner Juiy 1o, 1833 505,245 Foster Sept. 19, 1893 670,326 Mullen Mar. 19,1901 l'168,816 McFarlane Aug, 30, 1904 974,795 Hudson Nov. 8, 1910 1,205,389 Preston Nov. 2K1, 1916 1,388,451 ,Y Dunn Aug. 23, 1921 1,627,267 Boddeker May 3, 1927 1,670,033 Gilmore May 15, 1928 1,942,619 Sparling Jan. 9, 1934 2,065,265 BOCk Dec, 22, 1936

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