US2418622A - Liquid fuel burning apparatus - Google Patents

Liquid fuel burning apparatus Download PDF

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Publication number
US2418622A
US2418622A US489741A US48974143A US2418622A US 2418622 A US2418622 A US 2418622A US 489741 A US489741 A US 489741A US 48974143 A US48974143 A US 48974143A US 2418622 A US2418622 A US 2418622A
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Prior art keywords
bowl
tube
burner
closure
liquid fuel
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US489741A
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Lee S Chadwick
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Perfection Stove Co
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Perfection Stove Co
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D5/00Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel

Description

April 8, 1947. L. s. CHADWlCK LIQUID FUEL BURNING APPARATUS Filed June 5, 1945 2 Sheets-Sheet 1 INVENTOR, QQJQDW own WAM' April &, 1%? L. s. HAIDWEGK 2,4131%,522
LIQUID FUEL BURNING APPARATUS 2 Sheets-Sheet 2 Filed June 5, 1943 ill In in V l ,JNVENTOR. Q2 'immu a 1' 3* A? TTMFNEW Patented pr. 8, 1947 LIQUID FUEL BG APPARATUS Lee S. Chadwick, Shaker Heights, Ohio, assignor to Perfection Stove Company, Cleveland, Ohio, a corporation of Ohio Application June 5, 1943, Serial No. 489,741
This invention relates to improvements in liquid fuel burners of the bowl or pot type, and more particularly to a construction wherein a lighting tube rises through the bottom of the bowl. Suitable igniting means, such as a torch,
is adapted to be projected upwardly through the tube for the purpose of lighting the burner. An example of such a construction will be found in the copending application of Marc Resek, flied March 13, 1943, Serial No. 479,038.
The main object of the present invention is to improve the supply and distribution of the combustiOn air in a burner of the bowl or pot type characterized by a bottom lighting tube.
, and highly satisfactory operation of the apparatus.
Other more limited objects will appear a I proceed to describe the invention by reference to the accompanying drawings, wherein Fig. 1 is a central vertical section through the lower portion of a liquid fuel burning apparatus embodying one form of the invention; Fig. 2,is a horizontal section through the burner bowl on the line 22 of Fig. 1; Fig. 3 is a central vertical section through a burner bowl incorporating another form of the invention; Fig. 4 is a similar view illustrating a further modification, and Fig. 5, on a considerably reduced scale, shows the fuel feed control in conjunction with the burner by which a given fuel level is maintained.
The apparatus, as illustrated in Fig. 1, comprises a sectional drum-like casing I that is divided by a partition 2 into a combustion chamber 3 and an air compartment 4, the air being supplied thereto through its open bottom. Situated within the air compartment 6 is a burner bowl 5, shown in horizontal section in Fig, 2, and its annular top wall 6 is properly spaced from and connected to the partition 2 by spacers 8. The central opening 9 of the top wall is surrounded by a depending flange IE) that is properly spaced from a flange II that surrounds an opening R2 in the partition 2 to provide, between said flanges, an annular slot I5 through which air, flowing 8 Claims. (Cl. 158-91) 7 across the top of the burner bowl beneath the partition 2 from the air compartment C, enters the bowl.
The peripheral wall of the bowl is provided with circumferential rows of air admitting openings l6, and at its lower end said wall is curved inwardly and merges into a frusto-conical reentrant bottom wall It that is shown as terminating at its upper end in a vertical lip or flange I9.
Rising centrally within the bowl through the bottom plane thereof is a lighting tube 20 whose top end is curled outwardly and downwardly over the flange l9, as shown at 2|. centralized within the flange 19 by several gfie sirablythreel outward bumps or projections 22 that engage said flange, while the outer edge of the curled over portion is kept properly spaced from the flange by three or more inward projec tions or indentations 23. a
An annular plate 25 has its peripheral portion engaged with the bottom of the burner-bowl and the central opening of said plate is surrounded by 2. depending flange 26 that is engaged with the lighting tube 20. Said plate may be attached, as by welding, to either the bowl'or the tube, or to both. Adjacent said tube, the plate 25 is provided with a series of openings 21, some of which are shown in dotted lines in Fig. 2. A' shell 30 surrounds the bottom portion of the burner bowl and is disposed in spaced relation thereto, the same being sustained by brackets 32 from the adjacent section of the casing I. The purpose of this shell is to prevent chilling of "the bottom valve mechanism designated a.
portion of the bowl by shielding it from the fresh air entering" the compartment 4, as such a condition would adversely affect vaporization of the fuel within the trough-like sump that is formed by the annular bottom of the bowl and to which fuel i fed through a supply pipe 33. As illustrated more or less schematically in Fig. 5, the pipe 33 leads from a chamber A to which fuel is supplied from a suitable source (not shown) through a conduit a, and wherein the fuel is maintained at a given level by float controlled The same fuel level, indicated by the broken lines Xi, prevails in the burner bowl 5.
Attached to and depending from the plate 25 is a bracket 35 to the lower end of which is connected, by a pivot pin 36, a bar 31. The free end of the bar has pivoted to it a latch member 38 that is arranged ,for engagement with a keeper 39 on the lighting tube 20, thereby to releasably sustain the bar 31 horizontally beneath the light- 3 ing tube. Yieldlngly carried by the bar 31 for contact with' an inturned flange 40 that surrounds the lower end of the lighting tube is a relatively large disk-like closure 4|, the same having an opening 42 and a notch 43 for the accommodation of thelatch member 38 and the bracket 35, respectively: The closure is movably connected to the bar 31 by a pin 44 that has one of its ends riveted within an opening of the closure 4| and its opposite end projected through a hole in the bar :1, beyond which the pin is provided with a head 45. When the latch 38 is engaged with the keeper 39, the closure 4| is urged into contact with the flange 40 by a, coil spring 45 that surrounds the pin 44 and is compressed between the closure and the bar 31.
Assuming that liquid fuel is present in the burner bowl to about the level indicated bythe dotted line a, the burner may be'lighted by first releasing the latch 38 and allowing the closure 4| to drop out of the way and then projecting a lighted torch or other igniting means upwardly through the tube 20 and holding it in igniting relation 'to the fuel within the sump. A torch suitable for this purpose is illustrated in the above mentioned application, where it is explained that the torch may be inserted through the lighting tube and the absorbed element or wick thereof dipped into the oil for the purpose of saturating the said element or wick before lighting it. After lighting the burner, the closure 4| is returned to its former position where it is held by the latch 88. Air to promote combustion passes from the compartment '4 upwardly through the openings 21 and thence over the lip or flange I9 beneath the curled over portion 2| of the lighting tube, and enters the burner bowl in a well diffused tlon chamber 3, the primary air under these conditions being supplied through the openings Hi to the top of the lighting tube by horizontal portions of radial ribs 65, said ribs tapering downwardly to the bottom of the closure so as to serve as means for centering the closure within the top of the tube. Suitably connected, as by a. bracket 66, to the bottom of the closure. is a rod 61 between the head 68 of which and said bracket is a rocking bearing 69. The rod 61 extends downwardly through, and well beyond,
' an apertured lug Ill that is suitably fastened to and beneath the curled over upper end of the to leave a space between its inner edge and said tube through which air passes from the sur-= rounding air compartmentto the burner bowl through a circumferential row of openings 5 in said cylindrical extension 50.
- In all other respects, the present form of the invention may be like that previously described, wherefore the same reference characters are used to designate the corresponding parts of the two' forms.
According to the embodiment of the invention illustrated in Fig. 4, no closure is provided for the bottom of the lighting tube, butone is associated with the top thereof and forms one of the constituents of the air controlling and distribut the lower end of the lightin tube. Between said. lug and an abutment 1| on the lower end of the rod, is a coil spring 72 that serves to yieldingly hold the closure 63 within the upper end of the lighting tube. the burner, a lighted torch or the like may be projected up through the tubeinto the bowl, this action automatically tilting the closure against the action of the spring 12, the closure pivoting on the top edge of the lighting tube at the side adjacent the bracket 66. When the torch is withdrawn, the spring I2, through th rod 51, returns the closure to normal position, as illustrated in the drawing. With the burner in operation, air rises through the lighting tube and enters the bowl through the annular slot defined by the top edge of the tube and the overhanging flange 54, the latter serving to fan out the air into a sheet that extends about the'burner bowl. A ring-like plate 15 has its peripheral portion engaged with the bottom of the burner bowl and closely surrounds the lighting tube, no means being necessary in this form of the invention to admit air to the space between said plate and the reentrant bottom wall 6|. The plate is connected, as by welding, to either the bowl or the lighting tube, or to both. This embodiment of the invention, in other respects, may be the same as that first described, and accordingly the same reference characters designate the corresponding parts of the twoforms.
Having thus described my invention, what I claim is:
1. In liquid fuel burning apparatus, an upright burner bowl having a peripheral wall, a reentrant frusto-conical bottom wall joined to the lower end of said peripheral wall and terminating at its upper end in a lip, a lighting tube rising through the bottom of the bowl and surrounded adjacent its upper end by said lip and spaced from the lip to provide an annular space between the tube and lip, the top of the lighting tube being curled outwardly and over said lip in spaced relationthereto, means for supplying liquid fuel to the burner bowl, a closure for the lighting tube, and means for releasably retaining said closure in closed position for ready removal when it is desired to light the inflammable mixture of fuel vapor and air in the bowl.
2. In liquid fuel burning apparatus, an upright burner bowl having a peripheral wall, a reentrant frusto-conical bottom wall Joined to the lower end of said peripheral wall and providing with said peripheral wall an annular trough-like sump, means for admitting liquid fuel to said sump, the top portion of said reentrant bottom wall When it is desired to light bottom wall joined to the lower end of said peripheral wall and having a relatively large central openin a lighting tube for the admission of a portable igniter, said tube rising through the bottom of the bowl with its upper end projected through said opening in spaced relation to the surrounding portion of the reentrant bottom wall, the top end of said tube being extended outwardly and thence downwardly over the edge of said bottom wall, the turned-over portion of the tube having inwardly extended projections engaging the outer side of the top end of the reentrant bottom wall and the body portion of the tube being provided with outwardly extending projections that engage the inner side of said top end, means for supplying liquid fuel to the burner bowl, a closure for the lighting tube, and means releasably retaining said closure in closed position.-
4. In liquid fuel burning apparatus, an upright burner bowl having a peripheral wall, a reentrant bottom wall joined to the lower end of said peripheral wall, a lighting tube for the admission of a portable igniter, said tube rising through the bottom of the bowl and having its top end surrounded by and attached to the,corresponding end 0!. the reentrant bottom wall, means for supplying liquid fuel to the burnerbowl, a closure for the top of the lighting tube, means positioning the closure with its peripheral portion in vertically spaced relation to the top end of the lighting tube, and means yieldingly retaining the closure in closed position.
5. In liquid fuel burning apparatus, an upright burner bowl having a peripheral wall, a reentrant bottom wall joined to the lower end of said peripheral wall, a lighting tube for the admission of a portable igniter, said tube rising through the bottom of the bowl and having its top end surrounded by and attached to the corresponding end 01' the reentrant bottom wall, means for supplying liquid fuel to the burner bowl, a closure for the top of the lighting tube having a. part arranged to extend downwardly into the tube in spaced relation thereto and a peripheral part arranged to overhang the top edge of the tube, means locating the closure in a position with said peripheral part in vertically spaced relation to said edge, and means yieldingly retaining the closure in said position.
6. In liquid fuel burning apparatus, a burner bowl characterized by a reentrant bottom wall provided with a central opening, a lighting tube file of this patent:
6 disposed within said opening and having its upper end deflected outwardly over the surrounding portion of said bottom wall in spaced relation thereto, means for supplying liquid fuel to the burner bowl, and a closure for the lighting tube. 7. In' liquid fuel burning apparatus, a burner bowl characterized by a reentrant bottom wall provided with a central opening, the top edge of said reentrant bottom wall forming a lip, a lighting tube disposed within said opening and depending below the bottom of the bowl and having its upper end deflected outwardly and thence downwardly over the aforesaid lip, the tube being provided with projections that engage the inner and outer sides of said lip for maintaining the tube in properly spaced relation thereto, means for supplying liquid fuel to the burner bowl, and a closure for the lighting tube.
8. In a burner of the pot type, a burner pot havin bottom and side walls, a lighting tube projectin upwardly into the interior of the pot, the pot having a maximum fuel level below the top of said lighting tube, and a cover movable between an effective position wherein it obstructs the passageway through said lighting tube and an ineffective position permitting the insertion of a lighting device through said tube, the burner being constructed to provide openings through whichrwhen the cover i in effective position a limited supply of air is admitted to the interior of the burner pot around the upper end of the lighting tube above the maximum fuel level in the pot.
LEE S. CHADWICK.
REFERENCES CITED The following references are of record in the UNITED STATES PATENTS Number Name Date 59,393 Helme Nov, 6, 1866 269,189 Eastman Dec. 19, 1882 392,219 Odell Nov. 6, 1888 407,198 Grimston July 16, 1889 732,181 Flaherty June 30, 1903 1,529,821 Wood Mar. 17, 1925 1,944,593 Chadwick et al.- Jan, 23, 1934 1,987,487 Moore Jan. 8, 1935 2,311,570 Pyle Feb. 16, 1943 1,997,347 Schroeder et a1. Apr. 9, 1935 2,290,544 De Lancey July 21, 1942 2,302,287 Behrendt et a1 Nov. 17, 1942 1,519,152 Messer Dec, 16, 1924 2,039,591 Gilmore et al May 5, 1926 2,220,828 Riley Nov, 5, 1940 60,680 Brown Jan, 1, 1867 473,858 Stacey Apr. 26, 1892 974,665 Heilbron Nov. 1, 1910 1,439,041 Turner Dec. 19, 1922 1,513,287 Smallwood Oct. 28, 1924 1,589,052 Cocklin .4. June 15, 1926 1,609,511 Esposito Dec. 7, 1926 1,752,173 Hackiord Mar. 25, 1930 623,012 Grimm Apr. 11, 1899 2,065,265 Bock Dec. 22, 1936
US489741A 1943-06-05 1943-06-05 Liquid fuel burning apparatus Expired - Lifetime US2418622A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630165A (en) * 1946-06-03 1953-03-03 Perfection Stove Co Liquid fuel burner construction
US20070069473A1 (en) * 2005-09-20 2007-03-29 Richard Feller Method and system for improving interpersonal communication
US20130011800A1 (en) * 2011-07-06 2013-01-10 Wei-Long Chen Flame Device Including a Lift Mechanism and can Lift a Flame to a Predetermined Height

Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US59393A (en) * 1866-11-06 Hydrocarbon-burner for stills
US60680A (en) * 1867-01-01 Improvement in coal-oil stoves
US269189A (en) * 1882-12-19 Apparatus for heating freight-cars
US392219A (en) * 1888-11-06 John l
US407198A (en) * 1889-07-16 grimston
US473858A (en) * 1892-04-26 Henry stagey
US623012A (en) * 1899-04-11 Vapor-burner
US732181A (en) * 1902-09-26 1903-06-30 American Fuel Oil Burner Mfg Company Fuel-oil burner.
US974665A (en) * 1909-10-19 1910-11-01 Herz Mfg Company Self-heating iron.
US1439041A (en) * 1922-03-09 1922-12-19 Joseph O Turner Oil burner
US1513287A (en) * 1923-04-21 1924-10-28 George T Smallwood Oil burner
US1519152A (en) * 1924-12-16 Liqtjid-euei
US1529821A (en) * 1924-06-03 1925-03-17 Myron W Wood Fuel-oil burner
US1589052A (en) * 1925-12-11 1926-06-15 Lewis A Cocklin Liquid-fuel burner
US1609511A (en) * 1925-12-02 1926-12-07 Joseph R Esposito Burner
US1752173A (en) * 1926-11-04 1930-03-25 Hackford John Edward Fuel-oil burner
US1944593A (en) * 1930-10-13 1934-01-23 Perfection Stove Co Heating apparatus
US1987487A (en) * 1933-09-15 1935-01-08 Richard S Moore Oil heating unit
US1997347A (en) * 1932-10-26 1935-04-09 Automatic Burner Corp Oil burner apparatus
US2039591A (en) * 1935-03-04 1936-05-05 Franklin Oil Heating Inc Air distributor for oil burners
US2065265A (en) * 1933-01-16 1936-12-22 Oscar L Bock Oil burner
US2220828A (en) * 1937-11-11 1940-11-05 Riley Dev Corp Oil burner
US2290544A (en) * 1939-10-18 1942-07-21 Miller Co Liquid fuel burner
US2302287A (en) * 1940-02-12 1942-11-17 Ephraim Banning Burner
US2311570A (en) * 1938-07-15 1943-02-16 Richard M Pyle Stove

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US59393A (en) * 1866-11-06 Hydrocarbon-burner for stills
US60680A (en) * 1867-01-01 Improvement in coal-oil stoves
US269189A (en) * 1882-12-19 Apparatus for heating freight-cars
US392219A (en) * 1888-11-06 John l
US407198A (en) * 1889-07-16 grimston
US473858A (en) * 1892-04-26 Henry stagey
US623012A (en) * 1899-04-11 Vapor-burner
US1519152A (en) * 1924-12-16 Liqtjid-euei
US732181A (en) * 1902-09-26 1903-06-30 American Fuel Oil Burner Mfg Company Fuel-oil burner.
US974665A (en) * 1909-10-19 1910-11-01 Herz Mfg Company Self-heating iron.
US1439041A (en) * 1922-03-09 1922-12-19 Joseph O Turner Oil burner
US1513287A (en) * 1923-04-21 1924-10-28 George T Smallwood Oil burner
US1529821A (en) * 1924-06-03 1925-03-17 Myron W Wood Fuel-oil burner
US1609511A (en) * 1925-12-02 1926-12-07 Joseph R Esposito Burner
US1589052A (en) * 1925-12-11 1926-06-15 Lewis A Cocklin Liquid-fuel burner
US1752173A (en) * 1926-11-04 1930-03-25 Hackford John Edward Fuel-oil burner
US1944593A (en) * 1930-10-13 1934-01-23 Perfection Stove Co Heating apparatus
US1997347A (en) * 1932-10-26 1935-04-09 Automatic Burner Corp Oil burner apparatus
US2065265A (en) * 1933-01-16 1936-12-22 Oscar L Bock Oil burner
US1987487A (en) * 1933-09-15 1935-01-08 Richard S Moore Oil heating unit
US2039591A (en) * 1935-03-04 1936-05-05 Franklin Oil Heating Inc Air distributor for oil burners
US2220828A (en) * 1937-11-11 1940-11-05 Riley Dev Corp Oil burner
US2311570A (en) * 1938-07-15 1943-02-16 Richard M Pyle Stove
US2290544A (en) * 1939-10-18 1942-07-21 Miller Co Liquid fuel burner
US2302287A (en) * 1940-02-12 1942-11-17 Ephraim Banning Burner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630165A (en) * 1946-06-03 1953-03-03 Perfection Stove Co Liquid fuel burner construction
US20070069473A1 (en) * 2005-09-20 2007-03-29 Richard Feller Method and system for improving interpersonal communication
US20130011800A1 (en) * 2011-07-06 2013-01-10 Wei-Long Chen Flame Device Including a Lift Mechanism and can Lift a Flame to a Predetermined Height

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