US2064081A - Oil burner - Google Patents

Description

Dec. 15, '1 936.

T. A. QUART 2,064,081

OIL BURNER Filed July 5, 1952 2 Sheets-Sheet l mum-mum ll I INVENTOR. ZWRf/Z Gui/F7:

%,5 A TTORNEY,

Patented Dec. 15, 1936 UNITED STATES PATENT OFFICE OIL BURNER Thure A. Quart, Hartford, Conn.

Application July 5, 1932, Serial No. 620,866 2 Claims. (cuss-s8) light weight must be closely fitted to said base in order to keep them fixed in their proper position so that air will not pass under said shells in sufficient quantity to cause a faulty flame in the burner.

It is occasionally necessary to remove the shells from the burner base. n the burners now commonly used this is done with considerable difficulty, due to the fact that each shell must be removed separately. Due to the close fit necessary, the shells often adhere to the base, and in removing them the adjustment of the burner base is disturbed.

An object of my invention is to provide means whereby all of the shells including shell-covers and vaporizing cover are contained in one single and complete unit and can be easily mounted on or removed from the burner base as a unit.

A further object of my invention is to provide a burner base which is highly eflicient in operation, simple in construction and economical, to manufacture.

One form of a burner embodying my invention, and in the construction and use of which these objects may be attained is illustrated in the accompanying drawings, in which:

Fig. 1 is a plan view of my improved burner.

Fig. 2 is an elevation in central vertical section thereof.

Fig. 3 is a plan view of my improved base showing a part of the vaporizing cover mounted thereon.

Fig. 4 is a view in vertical section of the base on line 4-4 of Fig. 3.

Fig. 5 is a bottom view of the complete shell unit.

Fig. 6 is a fragmentary view in section on line 6-6 of Fig. 3.

In the drawings the numeral 5 denotes the burner base which is cast at the end of a supporting bar 6, and mounted on a post 1 which can be supported in any desired manner.

If desired a similar base can be cast at the other end of bar 6, providing a double burner base.

The base contains annular concentric vapor grooves 8 and 9 and a vaporizing groove I 0, located adjacent to the inner vapor groove 9. No-tches II are formed in the inner wall l2 of the inner vapor groove and communicating grooves 13 extend across air spaces I4 between the vapor grooves 9 and 8. These notches II and grooves l3 provide for the passage of vapors from the vaporizing groove ID to each of the vapor grooves.

A boss !5 is provided on the bottom of the burner base 5, which contains a fuel well l6 opening into the vaporizing groove Ill. The bottom of this well is closed with av plug l1, and afuel supply pipe I8 is secured to the side of the boss 55 for supplying fuel to the vaporizing groove 15 Ill through the well It. This construction of the burner base provides a trap at the bottom of the fuel well I6 which can easily be cleaned out by removing the plug l1.

Locating lips l9 and supporting shoulders are formed at the upper edges of the walls, forming the various grooves, for the purpose of supporting the shell unit and maintaining the same in proper position thereon.

The shoulders 2| surrounding the vaporizing groove ID on the wall l2 are slightly lower than the shoulders 20, and extend into notches H at each side thereof. Shoulders l2 are provided at. each side of the connecting grooves I3 on the" same plane as the shoulders 2|.

Starting wicks of asbestos material are mounted within the vapor grooves 8 and 9. The wick 23 in the outer groove being continuous while the wick in the inner groove is divided into sections, each section being interposed between the vapor passages l3 so as to permit free passage of vapor therethrough.

The various parts comprising the shell unit consist of a plate 25, perforated shells 26, cover plate 21 and handle 28.

The plate 25 comprises an annular vaporizing cover section 29 having a stiffening boss 30 formed therein and radially disposed extensions 3| extending therefrom. I

Shell locating lips 32 are upturned from each extension 3| for locating the inner shells on the plate 25 and the outer ends of the extensions are formed to provide walls 33 and lips 34 for locating the two outer shells thereon. The ends of extensions 3| are also formed to provide wick retaining notches 35.

The cover plate 21 is formed to provide a central cover disc section 36 and ring cover section 31.

The disc and ring section of the cover are joined by connecting bars 38 which extend between air openings 39 in the cover plate.

Radial extensions 40 are provided at the outer edges of the ring section and the ends thereof are upturned as at 4| to fit within the outside shell 26.

The handle 28 is secured to the cover 36 as by spot welding or similar means at the lips 34.

Shell retaining walls 43 are formed on the cover plate section 36-3'l for the purpose of retaining the shells in concentric position.

All of the parts composing the shell unit are secured together in the following manner: first the plate 25 is secured to the outside shell 26 by means of spot welding the shell to the upturned lips 34.

The inner shells are then placed in position on the said plate against the lips 32 and walls 33.

The cover plate 21 is then fitted in position as shown in the drawings and spot welded to the outside shell by the upturned lips 4|.

When thus secured together all of the parts fitting on top of the burner base are contained in a single unit.

The shoulders 28 on the burner base are made sufficiently wide to provide proper support for the shells that are made to fit freely against the lips [9. Thus the complete shell unit can be readily placed in position on the burner base or removed therefrom when it is desired to uncover the burner base.

It can be seen that this oifers a considerable advantage as all of the parts over the burner base with the exception of the wicks can be lifted as a single unit by the handle 28.

Other advantages are obtained by means of the novel design of my device.

When lighting the burner wicks with a taper as is customarily done, the wicks are moved from their proper position so that often the passage of vapor through the vapor passages is obstructed. I have overcome this objection by means of the extensions 3| on the plate 25 and the wick retaining notches 35 at the outer ends thereof. In order to provide free passage of vapor around the outer vapor groove it is essential that the wick 23 be held in position against the outside of vapor groove 8 so that the said wick will not obstruct the passage of vapor through the grooves [3 into the said vapor groove. When the shell assembly is placed on the burner base the outer wick if forced in position by the inclined sides 44 until the said wick rests Within the retaining notches 35, thus preventing the said wick from closing the grooves l3.

It is also essential that the sections of the inner wick 24 be retained in proper position so that they cannot obstruct the vapor passages 13. This I have accomplished by means of the plate extensions 3| which lie over the vapor passage grooves I3 at a level below the top of the wick sections and thus prevent said sections from moving into the path of the vapors passing through said grooves.

When the shell unit is placed in position on the burner base, the plate 25 will rest on the shoulders 21 around the vaporizing groove [0 and the extensions 3| of said plate will rest on the shoulders 22 at the sides of passage grooves 13, thus forming a complete cover for said vaporizing groove and passage grooves.

The operation of my improved burner is as follows: Oil is first admitted into the bottom of the vaporizing groove, vaporpassage grooves, and vapor grooves toflood the bottom of said grooves and to saturate the starting'wicks. The wicks are then ignited through the slots in the shell-cover 21 by means of a taper or similar device. The oil at the bottom of the grooves is thus burned at the said wicks until the burner groove I 0.

The vapors now formed in the vaporizing groove Iii will pass from said vaporizing groove through notches H and vapor passages I3 into vapor grooves 8 and 9, from where they will rise into the combustion chambers 51-48.

The heat within the burner will cause an upward passage of air through the central opening 45 and air spaces 16. This air is prevented from passing through the top of the burner by the shell cover plate section 363l. It will thus be forced to pass through the perforations in the shells into the combustion chambers, where said air will mix with the oil vapors therein and provide proper combustion.

In Fig. l of the drawings I have illustrated a novel construction which is both economical and efficient in adjustably securing the burner to the supporting post "i. I provide a hole in the bar it which is shaped so that the bar I will contact at only two points within said hole. The clamping screw 53 is threaded through the wall into said hole to clamp the post I from one side thereof against the two contacting surfaces, thus providing a three point contact as a means for rigidly securing my burner to said post. This form of a hole can be easily cast into the bar l6 as no accuracy is required for a proper fit on account of its shape.

I claim:

1. A burner of the character described comprising a base having vapor grooves therein,

vapor passages communicating with said grooves, means for supplying fuel to said grooves, wicks mounted in said grooves, a cover plate on said base, and means on said cover plate for retaining said wicks in position and spaced from said vapor passages.

2. A burner comprising a base having inner and outer fuel grooves therein and means for supplying fuel to said grooves, a wick positioned within the outer groove, a plurality of wicks positioned within the inner groove, a removable cover on said base, and means on said cover for retaining the wicks in the inner groove against rotational movement and the ,wick in the outer groove against radial movement therein.

THURE A. QUART.

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