US1251638A - Oil-burner. - Google Patents

Description

L. S. CHADWICK.

l ou BURNER. APPLICATION FILED IAR. 6. ISI-5.

Patented Jan.1,1918,

'30247 .29 Jde L. S. cHAnwm'K.

OIL BURNER. APPLICATION FILED MAR. 6. I9I5- 1,251,638. Patented Jan.1, 1918. I 2 SHEETS-SHEET 2- I MTA/1755.655:

UNITED STATES PATENT oEEroE.

LEE S. CHADWICK, 0F EAST CLEVELAND, OHIO, ASSIGNOR T0 THE CLEVELAND METAL PRODUCTS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

OIL-BURNER.

' Speoiileation of Letton Patent.

Application led March 8, 1915. Serial No. 12,649.

To all whom t may concern:

Be it known that I, LEE S. CHAnwrox, a citiz'en of the United States, residlng at East Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Oil-Burn ers, of which the following 1s a full, clear, and exact description, reference being had to the accompanying drawings. j

This invention relates to oil stoves, and more particularly to blue flame oil stoves wherein an upper and a lower spreader plate are provided which extend above the top of the wick and which are spaced apart vertically and so associated with the interior of the wick tubes as to distribute air through such space into the iiame in proximity to the top of the wick. It is the general purpose of the invention to so construct and unite these spreader plates that a deinite space will be maintained therebetween, the assembling of the spreader plates will be facilitated, and these results will be accomplished in such manneras not to interfere with the proper functioning of the burner. Further objects of the invention will appear hereinafter and will be accomplished in and through the combinations of elements embodied in the claims hereto annexed.

In the drawings forming part hereof, Figure 1 represents a vertical sectional view taken through a burner having my invention applied thereto; Fig. 2 is a top plan v1ew of the spreader assembly, the upper plate being broken away; Fig. 3 is a View of the spreader assembly taken on the line 3-3 of Fig. 2 and looking in the direction of the arrows, the bottom spreader plate bein broken away at one side; Fi 4 is a sectiona view corresponding to the llne 1 -1 of Fig. l; and Fig. 5 is a view similar to Fig.. 1 showing the manner in which the air distributer assembly may be a plied to a burner havingva modified form o anchoring device therein.

Referring now to the aforesaid drawings and. more particularly to Figs. 1-3 thereof, 1 denotes the inner and 2 the outer wick tube of the burner, 3 the lateral supply connection projecting from the lower portion of the outer wick tube, and 4 a hook secured to the inner tube, said connection and hook forming means whereby the burner may be connected to and the space between the wick tubes placed in communication with the supply pipe 5, substantially as set forth in Jeavons Patent No. 951,612, issued March 8,

-1910. The outer wick tube is preferably bent or deflected inwardly at its top, as indicated at 2, 4While the upper end of the inner wick tube is preferably deflected outwardly, as shown at 1, and then upwardly, as shown at 1b, the top of the outer Wick tube being shown as projecting a short distance above the top of the inner wick tube. A wick 6 is adjustably mounted between the wick tubes and is provided with a carrier 6 through which it may be raised and lowered by means of the star wheel 7 and its operatmg shaft 7a.

Thel outer wick tube is shown as provided with an outwardly projecting ledge 8 extending therearound and for the drum 9 and collar 10. A convenient manner of supporting these parts from the ledge 7 is to provide the collar with a plurality of radial ribs 10", which ribs are connected to the collar in any suitable manner, as indicated at 10", the inner ends of the ribs being adapted to sli over the upper end of the outer wick tu e and to engage and rest upon the ledge 8. The drum 9 is Secured upon the horizontally extending ledge or shoulder 10c of the collar 10 by means of an inwardly projecting extension 9, the bottom whereof is rounded. The upper end of the collar 10 is bent outwardly, as shown' at 10d and 10. 'lhe parts thus far described are substantially identical with the burner parts shown in the Jeavons patent aforesaid.

Below the top of and within the inner wick tube there is located an imperforate inverted frusto conical Spanner, indicated at 11, such Spanner being supported within Patented J an. 1, 1918. v

forming a seat the wick tube in any convenient manner, as

by having its peripheral portion fitted between an upper and a lower series of projections 12, in the manner shown in the application of Jeavons and Whittaker No.

708,599, filed July 10, 1912. From the in ner circumference of this Spanner depends a cylindrical neck 13 which neck is provided with a suitable number (two or more) of studs 14. projecting inwardly therefrom.

These studs may conveniently be short rivets.

Within the upper end of the inner wick tube and coperating with the collar 10 is an air distributor of-the same general type as vertically spaced seats 19 and 20. By this` construction,when the distributer is dropped in place within the top of the inner wick tube, the seat 19 will be automatically brought beneath the studs 14, in substantially the same manner as contemplated -by the construction set forth in Patent No.

871,593. When the distributer assembly is dropped into the top of the inner wick tube, one side or the other of the edges 17 will engage the studsI 14, and the distributer will be rotated in the appropriate directions to bring the seats beneath the studs by the weight of the distributer as it drops into place.' The space between each seat 19 and the curved surface vof the segment next thereto is such that, as soon as the studs 14 clear the shoulders, they engage the curved surface 17 thereabove, and thisgives a sulicient rotation in the opposite direction to the distributer to bring the seats 19 beneath the studs 14, thus anchoring the distributer against displacement by a vertical movement only, the seats and the studs serving as coperating locking devices which serve to prevent such vertical movement. When the distributer is sold in connection with existing burners equipped with anchoring devices located at a greater height than the studs 14, the seatsy 20 will coperate with such devices and will extend therebeneath to automatically lock the distributer in place, as shown in Fig. 5.

The tube 15 is provided with a series of large openings or slots 21 intermediate the top and bottom thereof, there being only suficient metal between such'openings to constitute a connection between the top and bottom parts of such tube, whereby free circulation of air is provided through the slotted portion of the tube. Above these openings, the sleeve is provided with a frusto conical hood 22. Secured to the sleeve 15, immediately below the openings 21, is an inverted frusto conical deflector or Spanner 23 which, when the dis-4 tributer is in place, may extend substantially parallel with the Spanner 11. At its periphery, the Spanner 23 is provided with an upwardly extending flange 24 adapted to:

contact with a vertically extending ring or collar 25. At its inner circumference, the Spanner is provided with a downwardly directed ange 24a whereby it may engage the side` thereof. This inevitably to insure a proper supply of air to such space. The collar forms an annular space with the adjacent upper portion of the innerl wick tube, has its upper end fiared inwardly, as shown at 26, to provide a barrier within the top of the wick tube, and the barrier thus formed is 28 denotes a lower annular spreader plate having its inner portion bent downwardly provided with perforations indicated at 27.

and connected in any approved manner with the upper part of the tubea15. This spreader plate is preferably imperforate and extends above the top of the wick 6 but in position to be engaged thereby should the wick be turned too high. Above this spreader plate and spaced therefrom/so as to provide an air passageway therewith is a spreader plate 29, the last mentioned spreader plate being provided with a series of perforations 30 between the central and peripheral portions thereof and with another series of perforations 31 within the space defined by the 'tube 15 and between such tube and the center of the plate. The spreader plate 29 may be conveniently supported from the tube 15 by means of arms 32, the top of the tube being practically cut away 'between the spreader plates so as to afford a full and free supply of air to such space. The space or passageway formed between the spreader plates 28 and 29 diminishes in cross sectional area toward the outer or such plates.

The construction thus far illustrated and described is substantially identical with that shown in the first embodiment of my invention set forth in my application No. 874,700I filed November 30`, ing proposition it is a difficult and delicate task to secure a uniform width the` discharge slot provided between the peripheral portion of the spreader plates. After assembling it is also, difficult to maintain such uniformity of width especially where the wick is turned up to a height to cause it to engage the lower spreader plate. Because of irregularities in the top of the wick, greater pressure will be exerted against one part of the lower spreader plate than another, resulting in contracting more or less the slot between the spreader plates at this point of greater pressure and correspondingly widening the slot or passageway at the opposite results in an 1914. As a manufacturunequal distribution of the airto the flame, with resultant insufficient combustion. 4

In order to 'obviate the objections above noted, I rovide spacers between the spreader lates w 'ch will enable them to be assembled quickly and conveniently and without sacrificing the uniform distribution of air therebetween. These spacers are preferably made by striking tongues or (prongs 33 from the upper spreader p ate an pressing these tongues or prongs at right angles to said plate. The holes 34 thus made are preferably of about the same area as the holes 30,

and the tongues or prongs. may be struckl from such a portion of the spreader plate as will lcause the resultant holes to form part of the outer series of holes 30. In pro- 'viding these tongues or prongs, the spreader plate is cut in such manner that, when the Vmetal is bent downwardly, the plane of the tongues or prongs will extend radially, (as

'will be clearly apparent from Figs.,2 and) whereby they will offer no substantialrobstruction to the distribution of air between the spreader plates to the flame. Were vthe spacers thus provided of any materlal `radial width, the resistance Vwhich they would oppose vto the flow of air between the spreader plates would result in producing streaks in the `iame, due to incompletely consumed 'carbon'. By the construction shown and described, however, I am enabled to facilitate the assembling of the spreader lates, to maintain under all ordlnary worklng conditions a dischargeslot of uniform.

width throughoutits circumference, and to accomplish these results, without opposing any material obstacle to the even distribution of the air between the spreader plates and to the ame.

For the purpose of centering the air distributing assembly within the inner wick tube, the said tube may be provided with a circumferential series of projections 1 lo-` cated above the seat for the Spanner 11. These projections will engage the ring or collar 25 and serve to center the air disv tributer. In practice, free clearance is provided between the tubular anchoring portion 15 and the neck 13, such clearance compensating for slight variations in the dialneters of the parts as well as for any conslderable accidental deformation of such parts'. j.

device such as shown in Jeavons Patent No. 871,593. The burner parts corresponding to those illustrated in Figs. 1 to 4 inclusive are designated by identical reference charac- Y ters. In this case, however, 35 denotesthe outer and 36 the inner rin ofthe centering spider provided in such ol tyjes of burners, Y these rings being connected y the radial arms 3 7. 'p The `ring or collar 25 is shown as provided with the circumferential series of projections 25 which, when the assembly is dropped into the vinner wick tube, will serve to center the same. The locking device will operate in the manner hereinbe- `fore described in connection with the studs' 14 except that, instead of coperating with studs, the upper series of seats 20 will cooperate'with the spider arms 37, being automatically lmoved thereunder by the combined vertical and radialmovement of the assembly, in the manner-pointed out in connection with the studs and in the manner pointed out in the aforesaid patent.

Reference has been'made hereinbefore to the fact that the Spanner plate 23 is provided with perforations 23. 'While' these openings are notessential to the operation of the burner where the anchoring studs are carried by the neck 13, they are necessar where the spider arm construction of Vloc g device is employed, since this construction interferes more or less withthe upward flow of air and, but for the perforations in the plate 23, would rob the flame of air necessary to secure proper combus- Having thus described my invention, what Ic1aimis:- f

1. In a burner of the character described, the combination of outer and inner wick tubes, a wick therebetween, a spreader plate extending in operative relation to the top of said wick, a second spreader plate above the first mentioned spreader plate and forming therewith a narrow passageway for supplying air to the space above the top of the wick, and a plurality of spacing devices interposed between said spreader plates and adapted to maintain a substantially uniform width of passageway between the peripheral or discharge portions thereof, said spacing devices being arranged to present no material obstruction to the fiow of air between said spreader plates to the peripheral or discharge portions thereof.

' 2. In a burner of the character'described, the combination of outer and inner tubes, a wick therebetween, a spreader plate extending in operative relation to the top of said wick, a second spreader plate above the first mentioned spreader plate and forming therewith a narrow passageway for supplying air to the space above the top of the wick, and a spacing device carried by one of said spreader plates and adapted to engage the other thereby tov preserve a substantiallyo uniform width of passageway between the peripheral or discharge portions thereof,

3. In a burner of the character described, the combination of outer and4 inner wick tubes, a wick therebetween, an annular spreader` plate extending in operative relation to the top of the wick, a second spreader plate above the first mentioned spreader 1 plate and forming therewith a narrow pas-j sageway for supplying air to the space above the top of the wick, and a plurality of spacing devices interposed between said plates and serving to preserve a substantially uniform width of passageway between the peripheral or discharge portions thereof, said devices being of narrow width and arranged to present no material obstruction to the passage of air between said plates.

4. In a burner of the character describex,l the combination of inner and outer wick tubes, a wick therebetween, a spreader plate extending in operative relation to the top of the wick, a second spreader plate above the lirst mentioned spreader plate and forming therewith a passageway for supplying air to the space above the top of the wick, the second spreader plate being provided with 1. openings between the central and peripheral 3. portions thereof, some of said openings being formed by providing tongues or prongs which are adapted to enga e the first mentioned spreader plate there y to preserve a substantially uniform width of passageway between the peripheral or discharge portions thereof.

5. In a burner of the character described, the combination of outer and inner wick tubes, a wick therebetween, a spreader plate 4| extending in operative relation to the top of the wick,a second spreader plate above the rst mentioned spreader plate and forming therewith a passageway for supplying air to the space above the top vof the wick, the second spreader plate bein provided with openings between the centra and peripheral portions thereof, some of said openings being formed by providing tongues or prongs projecting- 4downwardly., from 'the second 5. spreader plate and arranged with their webs substantially radial and adapted to engage the first mentioned spreader plate thereby to preserve a substantially uniform width of passageway between the peripheral or discharge portions thereof without materially obstructing the How of air to such portions. 6. As a new article of manufacture, an air difstribu-terY comprising an upper spreader plate having openings between its central 60, and peripheral portions, some of said openings being formed by striking prongs or tongues from said spreader plate and having their webs arranged radially, an annular spreader plate below the iirst mentioned spreader plate and in engagement with said prongs or tongues, and a central tube dependlng from the Aopening in said second plate. A

7. As a new article of manufacture, an air distributer comprising an upper spreader plate having openings between its central and peripheral portions, some of said open-v ings being formed by striking prongs or tongues from Said spreader plate having their webs arranged radially, and a spreader plate below the first mentioned spreader plate and in engagement with said prongs or tongues.

8. In a burner of the character described, the combination of an outer wick tube member, an inner wick tube member, a wick therebetween, an air distributor comprising a spreader adapted to extend in operative relation to the top of the wick, a draft tube connected to the spreader and having a series of locking devices, an air barrier member surroundin the draft tube and in close proximity to t e inner wick tube member, one of the two last mentioned members having a series of projections adapted to engage the other thereby to center the air distributer, a perforated Spanner plate connecting the air barrier member and the draft tube, and a series of anchoring devices within the inner wick tube and coperating with said series of locking devices.

9. In a burner of the character described, the combination of an outer and an inner wick tube, ay wick therebetween, an air distributer comprising a spreader adapted to extend in operative relation to the top of the wick, a draft tube connected to the spreader, a collar surroundin the draft tube, a perforated Spanner p ate extending between and connecting the draft tube and the said collar, series of locking devicesl carried by the draft tube, a series of coperating locking devicescarried by the wicki tube, and a series of projections extending inwardly from' the inner wick tube and adapted to engage the collar thereby to center the air distributer.

10. In a burner of the character described, the combination, of outer and inner wick tubes, a wick therebetween, anair distributer comprising a spreader plate adapted to extend in operative relation to the top of the wick, a draft tube below-the spreader plato, a perforated Spanner extending outwardly from the draft tube, and means coperating withvsaid tube for locking the distributer within the inner wick tube.

11. In a burner of the character described, the combination of outer and inner wick tubes, a wick therebetween, an air distributer comprising a spreader'plate adapted to extend in operative relation to the top of the wick, a draft tube below said spreader plate, a collar within the inner. wick tube and forming an air barrier for the top of the 130 wick, a perforated spanner plate between said collar and said draft tube, said draft tube being provided with locking devices, and locking devices coperating therewith.

12. In a burner of the character described, the combination of outer and inner wick tubes, a wick therebetween, an air distributer comprising a spreader .plate adapted to extend in operative relation to the top of the wick, a draft tube secured to the spreader plate, a collar surrounding the .draft tube and adapted to form an air barrier for the top of the wick, a perforated Spanner extending between said collar and said draft tube, and locking devices coperating with said draft tube.

13. In a burner of the character described, the combination of outer and inner wick tubes, a wick therebetween, an air distributer comprising a spreader adapted to extend in operative relation to the top of the wick, a draft tube connected to the spreader, said tube being provided with vertically spaced series of locking devices, a collar surrounding the draft tube and adapted to form an air barrier with the top of the wick, aperforated lspanner plate extending between said collarand said draft tube, and locking devices within the inner wick tube and cooperating with one of the series of locking devices with which the draft tube is provided.

14. In a burner of the character described, the combination of an outer wick tube member, an innerwick tube member', an air distributer comprising a` spreader adapted to extend in operative relation tothe top of the wick, an air barrier member within the inner with the length of the vertical passageway provided between the air barrier member and the inner wick tube member.

15. In a burner of the character described,

the combination, with 'an inner wick tube member, of an air distributercomprising a spreader, lan air barrier member below'the spreader and within the first mentioned member, and centering projections carried by one of said'members and adapted to engage the other member within the lower portion only of the space provided between the said members.

16. In a burner of the character described, the combination' of outer and inner wick tubes, a wick therebetween, an air distributer assembly within the inner wick tube comprising a spreader plate extending in operative relation to the top of -the wick, a central draft tube within the inner wick tube and having at its lower end a plurality of downwardlytapered locking segments each having an inwardly extending notch in one edge thereof provided with a seat, a Spanner plate extending outwardly from said tube and provided with perfor-ations, and locking means coperating with said seats.

In testimony whereof, Ihereunto aii'ixmy signature in the presence of two witnesses.

LEE S. CHADWICK. Witnesses:

, W. E. SHEPPARD,

V. J. BARRY.

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