US2692643A

US2692643A - Gas burner and support

Info

Publication number: US2692643A
Application number: US131548A
Authority: US
Inventors: Minot R Edwards
Original assignee: SPRINGFIELD BURNER CORP
Current assignee: SPRINGFIELD BURNER Corp
Priority date: 1949-12-07
Filing date: 1949-12-07
Publication date: 1954-10-26
Anticipated expiration: 1971-10-26

Description

Oct. 26, 1954 M. R. EDWARDS GAS BURNER AND SUPPORT 2 Sheets-Sheet l Filed Dec. 7, 1949 ////////////////////////////fl///fl///W/ Oct. 26, 1954 w s 2,692,643

GAS BURNER AND SUPPORT 2 Sheets-Sheet 2 Filed Dec. 7, 1949 &n mn &hu

m: m mm waw Q@ `Wm wW i .E & m x E U\ mam I e* mb l Patents& Oct. 26, 1954 sign'or -to Springfield -Burner Corporation, Springfield,.Mass., a corporaton of Massachur.

setts i ApDlicationxDecember 7, 1949, Serial LN011131,548

Claims.

used either as an original installation orto effeet the Conversion of a coal or other type vstove to a gas stove.

One of the objectstof the inventionis to -p'ovide a Construction :which -wi-ll permit. ready cleaning and servicing of ;the unit should it at any time become clogged. The :burner-ports are of small diameter and, accordingly, cleaning is occasionally necessary. Thus, the invention contemplates a constructio-n permitting not onlythe removal of the burner'from'the stove but alsozthe v removal of a plug at the end,of theburner to permit the introduction of .a cleaningtool .or brush.

Another object of the invention is theprovision of a long tubular burnerreenforced to suehv a degree by the heat radiating fins that vertical and horizontal distortionxwill -be minimizedr Still another object of the inventionis the provision of a supportingframe which will permit the burner proper to expand and contract longiv tudinally while lateral support at both `ends is maintained.

These and other objects of the invention will become more apparent as the 'description proceeds with the aid of the accompanying drawings in which- Fig. 1 is an end elevation of the 'burner mountedin a fire box.

Fig. 2 is a plan View of the .burner. v

Fig. 3 is a side elevation 'of the burner of Fig: 2.

Fig. 4 is a Vertical sectionalelevation .on 'the line 4-4 of Fig.

Referring to Fig. 1, a fire boxis indicatectat 2 and has positionedrtherein a support for-the burner consisting of a base 4, a tubular column B carrying on its upper end a U-shapedbracket 8. The burner, indicated' generally at 10, is supported by the bracketsandalsonby asmetatbafiie plate !2 which is designed to insu'e theupward movement of air through the ;burner :passages only.

The burner comprises a longrectangularsupporting frame M which supports the burnerubar 16 at both ends. Thsupportingframezm has side flanges l8 and 211 which,-:uwhen:the.:burner 2 .e is in position, extend alongthe under-side of the corresponding'edges :of plate 12. These fianges are Secured to the plateby -a plurality of bolts 22.` The righthand end-.of frame !4, as viewed in Figs. .2 and 3, includesa cross-member having a circular opening therein :Eorming a support 2@ which is adapted to sreceivethe -corresponding circular end 26 of theburnerbar lt. While the fit between-endi& and the circular support 24 is fairly close, ;neverthelesathere is sufficient play so that as .the burner expands the .end 26 may slide within-the support.

At :theother ;end of frame ishit will .be noted that the frame breadens slightly as at 28 and si) to accommodate the larger burner base 32. This base` end is affixed to the frameby screws 34 and 3:5 that pass laterally through the upwardly extendingearsBB and of the supporting frame. It .should 'be 'noted that screws .sa ,and 36 are above. the levelof the .plate l2 and hence may be readily reached if it is desiredto remove the burneriromthe frame .withoutdisturbing its mounting in the heat chamber.

The enlarged base 32 of the burner has a cavity or opening therein` which connects with .the gas line through a pipe or coupling 42. The opening in the base leads directly into the long tubular body 44 of the burner !6. This tubular body has .a large number of small gas ports in its upper surface, a few .of which have beenindicated at 46. These. ports are the order of in diameter, and therefore, in the drawing which is of reduced scale, they are shown merely as dots. In Fg. 4, however, the ports 46 have been exaggerated somewhat for the purpose of better illustration.

The right hand end of tube M is closed by a removable plug 45 which preferably will be screwthreaded and adapted to receivea key or screw driver to turn it when removal is desired. This plug, when removed, permits the insertion of a cleaningbrush which may be run through the entire length of tube 44.

On the sides and=bottom oi the burner tube it are a plurality of .radiating fins which are cast as -an integral unit with the tube. These fins when viewedin Fig. 2 are indicated atAl on one side .and'at 48 on the other. These fins merge with a continuous longitudinally extending fin 58 which can be plainlyseen in Figs. 3 and 4. Longitudinal n 50 gives substantial rigidity to the burnerltube .44 :against vertical distortion which is thedirectionin which'distortion is most likely to occur-as the-;top of `the burner :is normally 'somewhathotten than.` the bottom; a

The presence of plate |2 insures that the all upwardly moving air must pass the

fins

41, 48, and 50 thereby providing for excellent radiation of heat from the burner tube. This radiated heat from the fins is in addition to the heat supplied directly by the burning gas.

A pilot 52 is provided which serves two purposes. One of the pilot flames 54 is aimed at the burner ports to cause ignition of the burner when gas is supplied thereto. The other pilot fiame 56 is directed at a thermocouple 58 which controls the master valve so long as the pilot is in operation. When the thermocouple is heated, the valve will be open. Should the pilot flame go out and the thermocouple cool off, then the master valve will close and will be incapable of opening until the pilot is relighted. This is a safety device that is in common use on many types of burners and constitutes no part of the present invention.

When it is deemed necessary to remove the burner for any purpose such as cleaning, all that needs to be done is to remove

screws

34 and 36 which being above plate 12 may be easily reached by a screw driver. The couplings to the burner pilot and thermocouple are likewise disconnected in the usual manner after which the burner unit may be raised upwardly at the rear end and then slid rearwardly to withdraw end 25 from socket 24. When this has been accomplished and the burner removed, the plug at the end of burner tube M may be unscrewed and the cleaning operation carried out. The reverse series of steps are then followed to restore the burner to operative position.

Immediately back of the pilot 5 2 is a vertical fiange 60 which offers protection against drafts to the pilot. Flange 60 is also connected with a laterally extending block 62 on which is mounted the pilot 52, the gas supply coupling 64, and the thermocouple 58. A set screw (55 is utilized to maintain the thermocouple at proper elevation.

The burner bar and the fins are preferably made of cast aluminum although it should be understood that other suitable metals might be used.

I claim:

l. A gas burner for use in a gas burner assembly, comprising a burner bar in the form of a cylindrical hollow tube closed at one end by a removable plug, a plurality of gas ports along the top of said tube, a plurality of transverse radiating fins protruding laterally from the sides and bottom of said tube, a single vertical longitudinal fin at the bottom of said tube intersecting said transverse fins, all of said fins being integral with said tube, an enlarged base at the other end of said tube for connection with a gas supply, an integral laterally extending block between said transverse fins and said base, a pilot and thermocouple carried by said block, a supporting frarne for said burner bar comprising side members extending along the side of said fins, an end cross member having a circular opening thei-ein in which the plugged end of said tube is positioned, horizontal flanges along said side members adapted to be Secured to a baflle, upstanding portions on said frame adjacent said enlarged base and means connecting said upstanding portions and enlarged base at a level above said horizontal flanges.

2. A gas burner for use in a gas burner assembly comprising a burner bar in the form of a cylindrical hollow tube closed at one end by a removable plug, a plurality of gas ports along the top of said tube, a plurality of transverse radiating fins protrudng laterally from the sides and bottom of said tube, a single vertical longitudinal fin at the bottom of said tube intersecting said transverse fins, all of said fins being integral with said tube, an enlarged base positioned on the other end of said tube and communicating therewith for connection with a gas supply, a supporting rame for said burner bar comprising side members extending along the sides of said fins, an end cross-member of said frame supporting the plugged end of said tube, horizontal flanges along said side members and means located above said horizontal fianges detachably securing said frame and base together.

3. A gas burner unit adapted to be installed in a stove, comprising in combination a tubular burner bar with radiating fins and an enlarged base at one end, an elongated vertically open supporting rame with its longitudinal elements close to and substantially parallel to a plane passing through the outside edges of said fins and having a cross member at one end shaped to support one end of said burner bar without longitudinal restraint, a pair of upstanding ears at the other end of said frame, means extending through said ears for detachably securing said enlarged base to said frame, and a horizontal fiange on said frame below the level of said securing means and above the lower portion of said fins, said ange adapted to be fastened to a bafile plate whereby upon removal of said securing means the base end of said burner bar may be raised and the other end withdrawn from said cross member to permit complete removal of said burner bar from said frame.

4. A gas burner unit adapted to be installed in a stove, comprising in combination a tubular burner bar closed at one end and having an enlarged base for connection with a gas supply at the other end, a plurality of radiating fins connected to and extending crosswise of said burner bar, a longitudinally extending radiating fin connected to said burner bar and said crosswise extending fins, an elongated supporting frame with its longitudinal elements closely adjacent the opposite sides of said fins and having flanges along both sides for engagement with a bafe plate, a support at one end of said frame for holding the closed end of said burner bar in slidable engagement therewith, upstanding members at the other end of said frame and removable means passing through said upstanding members above the level of said flanges and securing said base to said frame.

*5. A gas burner assembly comprising a straight cylindrical burner bar closed at one end and having an enlarged base at the other, a plurality of radiating fins integral with said burner bar, an elongated supporting frame with its longitudinal elements closely adjacent said fins and having a cross member at one end which includes a circular opening therein to receive the closed end of said burner bar in slidable engagement therewith, a baflie plate, means securing said frame in an opening in said baiile plate, said bafile plate closing the area around said frame, thereby compelling the passage of air through the space between said burner bar and said longitudinal elements, upstanding members at the sides of the other end of said rame extending above said bafiie plate and removable connecting means extending through said upstanding members and securing said enlarged base to said frame whereby upon removal of said connecting means 5 said burner may be removed from said frame by raising said base vertically to a point above said frame and then withdrawng said burner in the direction of said base Without disturbing said frame or said bame plate.

References cited in the file of this patent UNITED STATES PATEN'JS Number Name Date 1,567,622 Sharp Dec. 29, 1925 1,984,933 Kuenhold Dec. 18, 1934 Number 10 Number Name Date Forster Dec. 21, 1937 Dufault May 21, 1940 Parrign Nov. 19, 1940 Haedike Nov. 18, 1941 Dufault Oct. 15, 1946 Johnson et al June 5, 1951 FOREIGN PATENTS Country Date Germany Sept. 10, 1924