US1671931A - Range jet burner - Google Patents

Description

A. G. KAUFMAN RANGE JET BURNER Filed Nov. 15, 1923 2 Sheets-Sheet 1 INVENTOR BY KZw/ Z ATTORNEY Ma 29, I928. 1,611,931

A. G. KAUFMAN RANGE JET BURNER Filed Nov. 15, 1925 2 Sheets-Sheet INVENTOR ATTORNEY Patented May 29, 1928.

UNITED STATES 1,671,931 PATENT OFFICE.

ADOLIPH G. KAUFMAN, or NEw YoRx, N. Y.

RANGE JET BURNER.

Application filed November 13, 1923. Serial No. 674,477;

This invention concernsheating apparatus in which liquid fuel is used, and in particular, types adapted fordomestlc purposes.

The invention has as one of'its objects to casing.

there consumed in such manner as to dis-.

tribute the flame and heat in an adv-antageous manner.

Other ob ects are, to provide an initial igniting device adapted for cleanliness, econr vonly and safety, and particularly for induc-- ing an air draft whereby atmospheric air 1s mixed with the flame and delivered in such manner as to rapidly raise the gas generating or expansion chamber and .burner to such temperature as may be required .to convert oil entering therein into a gaseous condition.

Still another object is the provision of a plurality of deflecting plates on a single friction collar so that when one deflecting plate is presented to the flame,the other mothers will be away from the flame to be readily cleaned of soot or other accumulations of w carbon.

. The several object's'are secured by the 40.

novel arrangement of specifically formed parts, as later described andillustrated in the appended drawing, in which I Figure 1 is a fragmentary plan view of a multiple burner apparatus made in conformity with the invention, parts being'in horizontal section on the line m-wof Fig. 3. Figure 2 is a partial transverse sectional view taken onplane corresponding to line 2-2 of Fig. 1, but showing a slight modificontinuous to one end of each recess and is held therein by the lock nut 25 and fixedin cation. I

Figure 3 is another sectional view taken in a plane at a right angle to Fig. 2 on line 3 3 of Fig. 1 but showing a modification of the deflector plate arrangement.

Figure 4: is a side view of a further modification of the deflector plate arrangement.

Figure 5 is a top view and Figure 6, a'side view of another form of deflector plate unit. Figures 7 '8 and 9 are side views of still other forms of'deflector units.

In Figure 1 appears one end of a generally flat topped support frame arranged to receive one or more pairs of burners one of WlllCll, at the left, being a plan and the other on the right, being asection as indicated by the line of Figure 3.

i The support frame, preferably a metal casing, is generally rectangular, although its contour may be fancifully made in any preferred shape, its upper surface 10 being essentially level having openings 11 to lighten its weight and permit ,of'f-ree air circulation.

The outwardly beveled marginal walls'12 terminate in lbeadededges 13 suited to rest upon any convenient level surface and contam openings 14 correspond ngin purpose with the openings 11.

Below each burner an 'oblong rectangular depression is formed'in the. frame, its Walls 15 flaring slightly inward to the flat, level bottom 16, from which risevertic'al walls 17 joined ,by'a cap-18 raised to approximately two thirds of the distance from the bottom 16 to the frame top 10. I w

l Said cap 18 and also in the modified form,

thesidewall 17, contain perforations 19 allowing air from below the frame to-enter the channelled recess 20, interjacent the walls 15 and 17, this recess having disposed in it a quantityof non-inflammable fiber, as asbestos, to act as a Wick 21,;tl1e channel constituting a fire box as will later be seen, and centrally on the cap 18'is a rib 22 raised above r thesurfaceof the frame 10, asbest seen in Figures 2 and 3. I v V Formed with the side walls'15 are raised and outwardly curved wings .or guards 23,

highest at their centers and adapted to direct liquids into the recesses;,and extending between adjacent recesses are grooves 24 for collecting excess liquid on the surface of the frame,-directing the same into the recesses.

An independent liquid fuel supply pipe 25 leads to a raised boss 26 formed on the frame the boss is a tube 27 bent at a right angle to extend over the perforate plate 18 at a spaced distance above it, andthen turned rethe center of the rib 22, and having a jet nozzle 31 removably engaged containing one or more perforations directed upwardly, there being a plug 32 removably engaged in the end of the burner head for cleaning purposes.

A plurality of circular sheet metal discs 33, having radial corrugations, are attached by friction band. 34: to the horizontal member of the tube 27, one of said discs being disposed directly over the nozzle 31 so that streams leading outward impinge on the disc and by it are directed outwardly around its entire circumference.

If it be necessary to clean any accumulation of sooty deposit from the disc this mayv be easily and conveniently done by rotating the band 34 so as to present a clean disc-to the flame, likewise rendering the sooty disc accessible for cleanin I have also found it desirable to make these deflector discs into a removable and readily attachable spreader unit some embodiments of which are shown in Figures 5 to 9'. In Figures 5 and 6, I have illustrated a spreader stamped of a single piece of material and formed to provide parallel deflector discs 33 joined by the relatively narrow strip 40, the opposite side of the discs 33 being provided with tongues 41 pierced to provide a catch 4E1 for retaining the arms 42 of the spreader unit in engagement with the tube 27; the arms 42 being also integral with their respective discs and bent at right angles to them to engage tube 27. The embodiment shown in Figure 7 is in all general respects similar to Figures 5 and 6 except that three instead of two discs are provided from a single stamping. Obviously, if the catch 41 be opened the discs may be spread apart and thus removed from the tube 27. It is of great importance that these spreader units be made of a single piece of material in order to avoid the use of rivets which arealways a source of much annoyance because of the readiness with which they collect soot and hold such accumulations against all efforts to cleanse thuslowering the efficlency' ofthe spreader discs.

While the preferred form of my spreader unit is stamped of a single sheet of material, still I have shown two ei'nbodiments of removable spreader units in Figures 8 and 9 wherein the deflector discs 33ers riveted or otherwise fastened as at 43 to spring clamps 1 1 for easy attachment or removal from the tube 27.

I have shown the spreader discs in Figures 5, 6, 7, 8 and 9 as having fiat surfaces but obviously they may be made with radial corrugations if desired, as shown in Figures 1, 2, 3 and 4;.

For some purposes it may be desirable to concentrate the heat from the channel 20 in which case a perforate shield, as indicated at 37 in Figure 2, may be used, the same restmg upon ledges 15 on the inner surface of the walls 15, the walls of said shield convergingtowards the open top, as shown.

23, which will direct oil spray to the wick recess. I

The flames from the wick and air entering the perforations 19 are intensely hot and following the walls 17, over the cap and along the raised rib 22 are concentrated to impinge upon the head 30 which action soon causes a pure to issue so that the same upon be ing ignited, strikes the disc 33 and is directed outwardly thereby,enough heat howeverbeing transmitted to the tube 27 to continue the process of gas making, draft being supplied from under the burner through the perforations 19 and openings 11 and 12.

In the initial operation, should an excess of oil enter the recess 20, it will be taken care of by the overflow pipe 35 set in a boss 36, formed on the bottom 16, and be delivered outwardly of the apparatus.

From the foregoing it will be apparent that one or more of the burners may be used as required; that the operation'is exceed- It is to be understood however, that the foregoing disclosure islargely descriptive, rather than limitive, and that minormodifications can be made as experience dictates within the scope of the attached claims.

Having thus set forth-the invention, including the manner of its operation and use, what I claim as new and desire to secure by Letters Patent is r 1. A liquid fuel heating apparatus comprising a framehaving oblong depressions in its upper surface, raised elements in the depressions forming channels therebetween, wicks in the channels, raised ribs centrally on said elements, areturn bcnd'generator tube fixed insaid frame to extend in a vertical plane centrally over each depression, a burner head on the end of each said tube, a jet nozzle fixed in each said head to extend upwardly, means for supplying fuel to each said tube, and means for diverting heat from said burner head radially outward.

2. A liquid fuel heating apparatus comprising a frame'having an oblong depression in its upper surface, a raised perforate element in the depression forming" channels 7 generator tube fixed in said frame, the bend in said tube being in a vertical plane, a head on the end of said tube disposed directly over the center of the depression, a' removable plug in the end of said head, means for supplying fuel to said tube, means for with.- drawing an excess of fuel from the wick channels, and means for collecting oil on top of said frame and returning it to the depressions.

3. A liquid fuel heating apparatus comprising a frame having an oblong depression in its upper surface, a raised perforate element in the depression forming channels between it and the walls of the depression, wicks in the channels, a raised rib centrally on said element, a return bend generator tube fixed in said frame, the bend in said tube being in a vertical plane, a head on the end of said tube disposed directly over the center of the depression, a removable plug in the end of said head, means for supplying fuel to said tube, means for withdrawing an. excess of fuel from the wick channels and a perforate guard adapted to rest in the depression, the walls of said guard being convergingly inclined to its open top below said generator tube.

4. A liquid fuel heating apparatus comprisinga raised hollow frame having openings in its top and side Walls and containing oblong rectangular depressions in the top, a

hollow element centrally disposed in each depression, said element extending upward to lesser height than the top of said frame and containing perforations in' its walls,

wings on the side Walls of the depressions, a

wick in the channel surrounding said hollow central element, a rib on said element extending above the frame top, a return bend generator tube fixed on said frame, said bend being in a vertical plane and said tube extending over said hollow element, a burner head on said tube disposed directly over the

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