US2507661A - Stove burner chamber construction - Google Patents

Description

May 16, 1950 J; M. COOK Er AL 2,507,661

STOVE BURNER CHAMBER CONSTRUCTION Original Filed April '5, 1945 I 3 Sheets-Sheet 1 mmvroxs. Jame; W7. 600/1 L:' 4-1 May 16, 1950 J. M. cooK El AL STOVE BURNER CHAMBER CONSTRUCTION s Sheefis-Sheet 2 Original Filed April 5, 1945 "QM w Afro/W6 May 16, 1950 J. M- CQOK ET AL STOVE BURNER CHAMBER CONSTRUCTION s Sheets-Sheet 3 Original Filed April 5, 1945 Patented May 16, 1950 STOVE BURNER CHAMBER CONSTRUCTION James M. Cook and Shirly C. Salter, Kalamazoo,

Mich., assignors to Kalamazoo Stove and Furnace Company, Kalamazoo, Mich.

Original application April 5, 1945, Serial No. 586,702. Divided and this application June 4, 1946, Serial No. 674,284

7 Claims.

This invention relates to improvements in stove burner chamber construction.

The subject matter of this invention has been divided from our co-pending application, Serial No. 586,702, filed April 5, 1945, for Cookin stoves or ranges now Patent 2,485,359.

The principal objects of this invention are:

First, to provide a burner chamber for a cook stove with a source of air from concealed openings near the bottom of the stove.

Second, to provide a burner chamber for a cook stove which is adaptable to a plurality of arrangements of the burners therein.

Third, to provide a burner chamber for a cook strove which may easily be kept clean and in which the adjustments and connections for the burner elements are accessible through the burner openings in the top of the stove.

Objects relating to details and economies of the invention will appear from the description to follow:

A preferred form of the invention is illustrated in the accompanying drawings in which:

Fig. 1 represents a perspective View of a stove embodying the principals of the invention.

Fig. 2 represents an end view of the stove with the outer ornamental panels removed.

Fig. 3 represents a cross-sectional View taken along the line 3--3 in Fig. 1.

Fig. 4 represents a plan View, partially broken away, of the burner chamber of the stove with the top panel of the stove removed.

Fig. 5 represents a cross-sectional view taken along the line 5-5 in Figs. 1 and 6.

Fig. 6 represents a partial elevational View of the front of the stove with the ornamental door removed.

Fig. 7 represents a partial plan view of the stove top with the burner bowls and grids removed, showing the shape of the burner openings'in the top.

The stove is assembled as is more particularly described in our above mentioned application into a unitary structure consisting of a front frame member I and a rear panel 2 which are connected at their ends by an upper cross piece 3 and a lower cross piece 4. The front frame member and the lower cross pieces are offset inwardly of the stove as indicated at 5 and are provided with a series of air holes 6 which are concealed by the overhanging upper portion of the stove.

More specifically, the front frame member 1 which is formed as a unitary stamping of sheet metal consists of a horizontal portion I joined to the bottom of the stampin by end uprights 8 and defining a horizontal slot with the outwardly facing flanges 9. The horizontal portion 1 is further provided with a pair of small slots 10 (see Figs. 5 and 6) positioned underneath the bottom flange 9 of the large slot. The top of the horizontal portion 1 is flanged inwardly as at II and provided with upstanding ears l2 at the ends and center thereof, which are arranged to support the forward edge of the top section l3 of the stove. The sides of the rear panel 2 are flanged forwardly of the stove as at M and along the top edge as at 55. The side flanges I4 are secured to the cross pieces by weldin and the top flange serves to add rigidity both to the plates and to the stove frame. Raised end portions I6 are arranged to be secured to the inturned flanges on the top of the upper cross piece.

A burner chamber bottom panel I! is provided with an upturned flange [8 along the rear edge thereof (see Figs. 3 and 5) which is secured to the back panel 2 by welding just under the top flange of the back panel. The forward edge of the burner chamber panel I! is offset downwardly as at I9 and Welded to the front frame member. End flanges 20 on the burner chamber panel are welded to the top cross members 3 and the ends of the burner chamber panel between the flanges 2d are cut away and flanged downwardly to form slots 2|.

The slots 2! communicate with air ducts formed by the vertical flue members 22 which are secured to the cross members 3 and 4 below the ends of the burner chamber panel. The flue members are of outwardly facing channelshaped cross-section with attachin flanges along their edges. They coact with the outer decorative end panels 23 to form air ducts opening at their bottom within the stove just above the air holes 6 and opening into the burner chamber through the slots '2! just described. A central slot 24 is arranged to communicate with a flue formed by the vertical partition plate 25 and the flanged flue member 26 secured thereto below the burner chamber panel.

The burner chamber bottom panel is pressed downwardly into three recesses 21 which extend from near the back panel to the front of the bottom panel. The front of the recesses 21 register with the slots It in the horizontal top portion of the front frame member and. are arranged to receive drip pans 29. A front decorative panel 28 is also slotted to cooperate with the slots II] and recesses 21 and is secured to the front frame member by the bolts. Three recesses are provided to accommodate various arrangements of burners in the burner chamber.

Positioned within the burner chamber are two burner support members 30 which are of downwardly opening channel-shaped cross section and raised above the burner chamber bottom panel in their center. The ends of the burner support members are flanged outwardly and welded to the rear of the burner chamber bottom panels as at 3| and to the flanges 9 of the front panel as 7 continuous member.

at 32 (see Fig. Burner units 33 are mounted upon the burner support members by shouldered pin connections 34.

The top of the front frame member I is pressed into incline portions 35 towhich the fuel manifold 36 is secured. The manifold extends across the front of the burner chamber-and is provided with a series of fuel valves '3! arranged to'deliver fuel to the mixing chambers 38 of the burners 33. One end of the manifold 36 extends backwardly along the side of the .burnerchamberand is provided with a connection 39 for joining the manifold with a fuel supply pipe which will enter the burner chamber from the rear of the'stove.

The stove top member 13 which is more particularly described-and'claimed in our co-pending application, Serial No.- 6'74;283 filed June 4, 1946, for Stove top assembly, consists, in-addition to the top portion, of 2, depending frontportion 40 of considerable depth and a rear fence portion 4! which are joined with the top portion in a seamless manner. Merging end flanges 42 are formed on-each of the depending front, top, and rear fence portions of the top An inturned flange 43 is formed along the-sides of the end flange 42, and a backwardly turned flange 44 is formed along the bottomof the depending front portion of the top member. The top portion 13 is arranged to be supported along its ends-byengagement of the flange 43 a with the top flange of the upper cross members 3 and at its front upon the raised ears #2 formed on the front frame member. The inturned flange 44 on the front of thetop member is arranged to fit underneath the bottom flange 9 of the horizontal slot in the top member 1. The top is secured against sliding by the'removable bolts 45. The back of the top panel is secured to the top cross members 3 by the clips 46.

The clips 46 are made of spring material-and have a central strip 41 which extends over the raised ends [3 of the rear panel 2. At each end of the central portion t! there is formed a downwardly bent lower portion 48 which is secured underneath the inturned flange of the top cross members by welding. The holes 49 are formed in the central portion 41 to facilitate the app1ication'of welding electrodes to the members to be joined. It will be noted that the central portion 41 is spaced upwardly from the lower portions 48 to permit the top flange of the decorative end panel 23 to be slid between the central portion and the top flange of the top cross member. The ends of the lower portions 48 of the-clips are extended and bent upwardly in the end clip'sections 53 which are bent into a U shape the tops of which are higher than the central portion 41.

Thus the inturned flanges 43 on the sides of the top member may be slid between'the end clips 50 and the central portions 41 of the clips. The top member [3 is'thus easily removable from the remainder of the stove by removing the bolts 45 and sliding the top member from the clips 46. The depending frontportion of the top defines apertures through which the control knobs 53 extend to operate the fuel valves andthe top portion defines the flanged apertures E l-over the burners 33.

Attention is now called to Fig. 7 which shows the burner openings--54 to be formed with enlargements 55. The openings are arranged to receive the burner bowls 56 and grids 51 over the burners. The burner bowls and grids are more particularly described and claimed in the copending application of Shirly C. Salter, Robert C. Lang,

4 and James M. Cook, Serial No. 587,358, filed April 9, 1945, now Patent 2,429,279.

Removal of the grids and burner bowls makes the mixing chambers 38 readily accessible through the enlargement of the front burner openings while the connection 39 to the fuel manifold is readily accessible through the enlargement of the rear burner opening.

A vertical vent member 58 is secured to the back panel 2 of the stove and extends upwardly into theoutlet tube 59 arranged to discharge into the outlet 60 onthe top of the back fence portion 4| on the top member.

The burner chamber as described is closed on its front and sides by the depending front portion of the top and the top cross members of the stove body. The rear'of the burner chamber is partially enclosed by the flue member 51 and the bottom of the chamber is closed except for the fines previously described by the bottom panel H. The bottom panel besides closing the burner chamber performs a structural function in stiffening the body of the stove.

We have illustrated and described herein a highly practical commercial embodiment of the invention. No attempt has been made to show other possible adaptations, as it is believed that this disclosure will enable those skilled in the art 'to adapt the invention as may be desired.

We claim:

1. In a stove or range, the combination of a framestructure comprising a unitary front load carrying frame, rear frame, and end members, a sheet metal burner chamber bottom welded to said members and constituting a unitary part of the frame structure, a top unit comprising a top surface portion, a rear fence portion and a dearched thereabove, burners mounted on said burner supports, said depending front portion of saidtop having openings therein adapted to receive valve stems, and a fuel conduit mounted on said front frame independently of said top unit.

2. In a stove or range, the combination of a frame structure comprising a unitary front load carrying frame, rear frame, and end members, a sheet metal burner chamber bottom welded tosaid members and constituting a unitary part of the frame structure, a top unit comprising a top surface portion and a depending front portion provided with merging end portions, the end portions and front portion havin inturned flanges secured to said frame structure by concealed fastenings, burner supports of channel shaped cross section welded at their forward ends on said front frame and at their rear ends on burner chamber bottom to extend from front to rear and constituting front andrear stiffening braces for said frame, the mid portions of said supports being arched upwardly above said chamber bottom, and burners mounted on said burner supports.

3. A burner chamber for a stove comprising a bottom member, end members secured to the ends of said bottom member, a front member defining a forwardly flanged slot, the front of said bottom member being secured to the back of said front member below said slot, said bottom, front, and end members coacting to add rigidity to the body of the stove, a fuel manifold secured to said front member inwardly of said slot along the inner edge of the flange along the upper edge of said slot in said front member, fuel valves connected to said manifold and positioned in said slot, burner support members welded to said bottom member at the rear thereof and to said front member at the front thereof and constituting front to rear stiffening members for said stove, burners removably supported on said support members and connected to said valves, a continuous top member supported upon said front and end members and having an integral apron portion extending over said slot, bolts securing the bottom of said apron portion to the lower flange of said slot, and control members extending through said apron portion to said valves.

4. A burner chamber for a stove comprising a bottom member, end members secured to the ends of said bottom member, a front member defining a forwardly flanged horizontal slot, the front of said bottom member being secured to the back of said front member, said bottom, front and end members coacting to add rigidity to the body of the stove, a fuel manifold secured to said front member Within said slot, fuel valves connected to said manifold and positioned in said slot, burner support members welded to said bottom member at the rear of said bottom member and to the bottom flange along said slot in said front member at the front thereof and constituting front to rear stiffening members for said stove, burners removably supported on said support members and connected to said valves, a continuous top member supported upon said front and end members and having an integral apron portion extending over said slot, removable clamping members securing the bottom of said apron portion to the lower flange of said slot, and control members extending through said apron portion to said valves, said top member defining individual burner apertures over said burners through which the connections between said burners and valves are directly and vertically accessible.

5. A burner chamber for a stove comprising end members, a bottom member secured to said end members and defining air slots therewith, a front member defining a forwardly flanged horizontal slot, said bottom member being secured to the back of said front member below said slot, said end, bottom, and front members coacting to add rigidity to the body of the stove, burner support members having their front ends secured to said front member and being secured to said bottom member at the rear ends of said support.

members, and constituting front to rear stiffening members for said stove, depressed portions formed in said bottom member under said support members and defining slots at the forward edge thereof arranged to receive drip pans, burners removably supported on said support members, a fuel manifold supported on said front member, fuel valves connected to said manifold and having stems projecting through said horizontal slot, 2. continuous top member having a front portion covering said slot in said front member, side flanges on said top member supported upon said end members, clip means for slidingly securing said flange to said side members at the rear thereof, and concealed screw means for securing the front portion of said top member to the bottom flange of said front member below said horizontal slot, said top member defining apertures over said burners.

6. A burner chamber for a cook stove comprising, end members having inturned flanges along the tops thereof, a front member defining an outwardly flanged horizontal slot, a bottom panel secured to said end and front members and defining air slots with said end members, a decorative top member having inturned end flanges and a depending front portion with an inturned flange on the bottom thereof, decorative end panels having inturned flanges on the tops thereof, bolt means for securing said inturned flange on the front of said top member to the lower flange of said front member below said outwardly flanged slot to enclose the front of said burner chamber, and multi-leaved U-shaped clips secured to the rear of said flanges on said end members arranged to slidingly receive said flanges on said end panels and said inturned flanges on said top member at vertically spaced levels to define auxiliary air slots therebetween to said burner chamber.

7. A burner chamber for a cook stove comprising, end members having inturned flanges along the tops thereof, a front member defining an outwardly flanged horizontal slot, a bottom panel secured to said end and front members and below said slot, a decorative top member having inturned and flanges and a depending front portion with an inturned flange on the bottom thereof, decorative end panels having inturned flanges on the tops thereof, bolt means for securing said inturned flange on the front of said top member to the lower flange of said front member below said outwardly flanged slot to enclose the front of said burner chamber, and multi-leaved U- shaped clips secured to the rear of said flanges on said end members arranged to slidingly receive said flanges on said end panels and said inturned flanges on said top member, said clips having vertically spaced separate upper portions to engage said flanges on said end panels and said flanges on said top member at different levels to define air slots therebetween opening to said combustion chamber.

J AMES M. COOK. SHIRLY C. SALTERJ.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,974,222 Teller et a1 Sept. 18, 1934 2,013,802 Hobson Sept. 10, 1935 2,038,950 Moore Apr. 28, 1936 2,101,590 Miller Dec. 7, 1937 2,140,408 Sherman Dec. 13, 1938 2,161,537 Stockstrom et al. June 6, 1939 2,180,645 Sherman Nov. 21, 1939 2,295,378 Barnsteiner Sept. 8, 1942 2,295,915 Ring Sept. 15, 1942 2,335,279 Hobson Nov. 30, 1943 2,339,802 Parker Jan. 25, 1944 2,376,571 Brumbaugh May 22, 1945 2,418,152 Avery Apr. 1, 1947

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