US2580927A - Stove - Google Patents

Description

Jan. 1, 1952 KAHN ETAL 2,580,927

' STOVE Filed Dec. 15. 1948 IN VEN TOR. B we.

ATTORNEYS Patented Jan. 1, 1952 STOVE Bertrand B. Kahn, Cincinnati, and Paul F. Metz, Hamilton, Ohio, assignors to Noma Electric Corporation, Hamilton, Ohio, a corporation of Maryland Application December 15, 1948, Serial No. 65,304

12 Claims. 126-37) 1 This invention relates to cooking stoves, and more particularly to an oven door construction for cooking stoves.

One of the principal objects of the invention' is to provide a simple and economical oven door construction which will effectively seal the top and sides of the oven opening in a cooking stove against the escape of hot gases from within the oven around the door without the use of complex or expensive sealing members.

A further object is to provide an oven door construction wherein the sides of the door and the oven opening incorporate interfitting portions which cooperate substantially without actual bearing engagement with each other to form a tortuous passage obstructing the escape of hot gases from within the oven.

An additional object is to provide such an oven door construction wherein the body of the stove carries a sealing member which includes a portion cooperating with the front end of the side panel of the stove to retain the panel in proper position without the necessity for additional fastening means for the panel at the front of the stove.

It is also an object of the invention to provide an oven door construction for a gas range which includes a resilient seal above the door arranged inwardly of the junction between the frame and the front panel of the cooking top to prevent the passage of products of combustion from the oven into the cooking top where they may interfere with the proper operation of the cooking top burners.

Other objects and advantages of the invention will be apparent from the following description, the accompanying drawing and the appended claims.

In the drawing: a

Fig. 1 is a view in front elevation of a cooking stove embodying an oven door construction in accordance with the invention;

Fig. 2 is an enlarged fragmentary section on the line 22 of Fig. l;

Fig. 3 is an enlarged broken section on the line 3-3 of Fig. 1;

Fig. 4 is an enlarged fragmentary view in perspective of the upper end of one of the sealing members at the outer sides of the oven doors; and

Fig. 5 is an enlarged fragmentary view in perspective of one end of the sealing member between the doors of the stove.

Referring to the drawing, which illustrates a preferred embodiment of the invention, Fig. 1' shows a gas range provided with a cooking top 80 which includes a front panel II in which are mounted the usual valve controls for the cookin top burners and oven. The range is shown as provided with two ovens, the oven at the left hand side of the range having a door l2 and commonly being a broiling or meat-cooking compartment, and the other oven having a door l3 and commonly being the baking oven. Both doors are mounted at their lower edges for swinging movement on a horizontal axis with respect to the body of the range, and below each door is a drawer I5, one of which may be a broiler drawer.

Referring more particularly to Figs. 2 and 3, it will be seen that the main frame 20 at the front of the stove forms a pair of openings at the front of the stove which are adapted to be closed by the oven doors I 2 and l 3, and the frame includes portions 2| and 22 adjacent the outer sides and tops of the oven opening which receive corresponding portions of the door lining 23 in abutting contact when the doors are closed. The door lining 23 may be bolted or otherwise secured to the main door panels I2 and I3 in the usual way, and the oven liners are indicated at 24.

At the top of each oven opening, the frame 20 includes a flange 25 extending forwardly of the adjacent door-contacting portion 2!, and these parts are so proportioned that the flange 25 extends above the upper edge of the door and in spaced relation therewith when the door is closed, leaving a space 26 therebetween as indicated in Fig. 2. This forwardly projecting flange 25 is oiT-set upwardly at its forward end 21 and overlaps a rearwardly projecting flange 28 along the lower edge of the panel portion I l ofthe cooking top. The junction betweenthese parts 21 and 2B is commonly left unsecured, the cooking top being bolted or otherwise secured to the frame at other positions in such manner that the parts 2'! and 28 are held in substantial contact with each other.

In order to seal the space 26 across the top of the door against the escape of hot gases from within the oven, a sealing strip 30 is secured to the flange 25 between the frame portions 2| and 21, and this strip extends entirely across the front of the range above both of the doors l2 and I3, as indicated in Fig. 1. The sealing strip 30 in-' cludes a leg portion which is shown as riveted at 3 l to the flange 25, and it also includes a resilient loop portion 33 which extends downwardly and rearwardly from the front edge thereof. This loop 33 is of such dimensions as to have resilient wiping contact with the upper edge of the door when the latter is closed and thus to form therewith a resilient seal for the space 26.

- With this construction at the top of the door,

the sealing strip 30, which is of simple construction and easily installed, is carried by the body of the range out of direct view from in front of the range, but it provides an effective seal against the escape of hot gases 'past the top of the door. This arrangement is particularly desirable and effective in a gas stove, since with the strip 33 thus positioned between the interior of the oven and the junction between the flanges and 28, it prevents the passage of products of combustion from the oven through this junction point into the cooking top, where the presence of such products of combustion is highly undesirable as tending to reduce the available supply of air required for proper operation of the cooking top burners.

Along each of the outer sides of the stove, the frame 20 is ofl-set rearwardly at positions laterally outside its door-contacting portions 22, each of these frame portions 35 thus being spaced from the corresponding portion 36 of the door lining and forming therewith a slot 31 opening laterally outwardly of the stove when the door is closed. The side panels 48 ofthe stove each include an inwardly turned front flange 4| which extends into the slot 31, these parts being so proportioned as to leave clearance between the flange 4| and the door lining when the inner part of the door is in contact with the frame portions 2| and 22 as shown in Fig. 3.

Sealing or baffle members 44 are provided for retarding the escape of hot gases from within the ovens through the slots 3?, each of these sealing members having the form of an angle iron arranged longitudinally of one of slots 31. One I leg 45 of the angle is welded or otherwise secured to the frame portion 35, and the other leg 46 projects forwardly of the stove to form a bailie extending beyond thhe adjacent doorcontacting frame portion 22. The door lining is formed with a groove 41' arranged to receive the bailie 46 when the door is closed, and as shown in Fig. 3, this groove 4! is somewhat deeper than the width of the part of baffle 4'6 which extends beyond frame portion 22 so that when the door is closed, there is substantially no actual contact between the bafile 46 and the walls of the groove. However, since the bafiie and groove interfit to cut off direct passage between the contacting portions of the door and frame and the outer end of slot 3'5, leaving only a tortuous passage through the groove and around the baffie, it has been found in practice that the-escape of hot gases through the slot is effectively obstructed.

The sealing members 44 also serve as retaining means for the side panel of the stove, The leg 45 of each member 44 is slotted near its upper and lower ends to provide tabs or tongues which are bent forwardly to form grooves with the adjacent portions of bafiles 46. The front flange 4! of each side panel which extends within the slots 31 is provided with a further flange 52 along its inner edge, and these flanges 52 are adapted to be received within the grooves formed by tongues 56. At its rearward edge, each side panel is formed with a flange 53 adapted to overlap a similar end flange 54 on the main back panel 55 of the stove. With this construction and arrangement, each side panel is readily mounted in position by fulcruming its front flange 52 in the grooves formed by the tongues 50 of the proper member, and then swinging the panel towards the body of the stove until its flange 53 is in proper overlapping relation with the back flange 54. The latter pair of flanges is then readily bolted together at 56 to complete this assembly operation.

Figs. 3 and 5 show the construction at the middle of the stove for sealing against the escape of hot gases from within the oven. The frame 20 includes a central portion which defines the inner sides of both oven openings and is formed forwardly at 66 to overlap laterally the inner edges of both doors l2 and 13. A sealing or baiile member having a T-shape in horizontal section is riveted or otherwise secured to this frame portion 60 with its leg portion 66 projecting forwardly of the stove. Thus when the doors are closed, their inner edges contact the side wings 61 of this sealing member 65, while its leg portion 66 projects between the two doors and acts as a battle retarding the escape of hot gases through the space between the doors in a manner similar to the baffles 46 at the sides of the stove. Y

The invention thus provides a simple and efiective sealing construction for the top and sides of an oven door to obstruct the escape of hot gases from within the oven. Since the tendency for such gases to escape is greatest at the top of the oven. a resilient seal is provided across the top of the door, but this tendency is less at the lower positions along the sides of the door, and the interfitting groove and baille arrangement de scribed has been found to give adequate sealing, In addition, this construction is simple and economical to manufacture and install, and the arrangement and use of the side sealing members to retain the side panels of the stove in position further promotes advantageous results in production.

While the form of apparatus herein described constitutesa preferred embodiment of the in vention. it is to be understood that the inven-' tion is not limited to this precise form of apparatus, and that changes maybe made therein without departing from the scope of the inven--.

tion which is defined in the appended claims.

What is claimed is:

1. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame includ ing portions adjacent the sides and top of said opening positioned for abutting contact when said door is closed, said door and said frame including portions along a side edge of said open-' ing extendinglaterally outwardly of said can tacting side portions thereof in spaced relation; with each other when said door is closed to form' a slot opening laterally in the side of said-stove, and means carried by said laterally extending frame and door portions arranged for interfitting relationship laterally outwardly of said abutting portions when said door is closed to obstruct the passage of gases from the interior of said even through said-slot.

2. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven doorhinged on said frame, said door and said frame including portions adjacent the sides of said opening positioned for abutting contact when.

door portions having a groove therein arranged longitudinally of said slot and laterally outwardly of said abutting portions, and the other of said laterally extending frame and door portions carrying a bafile member arranged to project within said groove when said door is closed to obstruct the passage of gases from the interior of the said oven through said slot.

3. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame including portions adjacent the sides of said opening positioned for abutting contact when said door is closed, said door and said frame including portions along a side edge of said opening extending laterally from said opening in spaced relation with each other when said door is closed to form a slot in the side of said stove, one of said laterally extending frame and door portions having a groove therein arranged longitudinally of said slot and laterally outwardly of said abutting portions, and a baffle carried by the other of said laterally extending frame and door portions in position to project within said groove in spaced relation with the walls thereof when said door is closed to define with said groove a tortuous passage from said contacti'ng side portions of said door and frame to the exterior of said stove for obstructing the passage of gases from the interior of said oven through said slot.

4. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame including portions along a side edge of said opening extending laterally outwardly from said opening in spaced relation with each other when said door is closed to form a slot in the side of said stove, a side panel extending rearwardly of said stove from said slot and including a front flange extending within said slot in overlapping relation with said laterally extending frame portion, a bafiie member mounted longitudinally of said slot on said laterally extending frame portion and projecting forwardly therefrom, said baffle and said flange including interfitting portions cooperating to retain said side panel in position on said stove, and said laterally extending door portion having a groove therein arranged for interfitting relationship with said baflle when said door is closed to obstruct the passage of gases from the interior of said oven through said slot.

5. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame including portions along a side edge of said opening extending laterally outwardly from said opening in spaced relation with each other when said door is closed to form a-slot in the side of said stove, a side panel extending rearwardly of said stove from said slot and including a front flange extending within said slot in overlapping relation with said laterally extending frame por tion, and a sealing member mounted on said laterally extending frame portion longitudinally of said slot for obstructing the passage of gases from the interior of said oven through said slot, said sealing member and said front flange on said side panel including portions arranged in interfitting relationship to retain said side panel in position.

6. A cocking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said framasaid door and said frame including portions along a side edge of said opening extending laterally outwardly from said opening in spaced relation with each other when said door is closed to form a slot in the side of said stove, a side panel extending rearwardly of said stove from said slot and including a front flange extending within said slot in overlapping relation with said laterally extending frame portion, said front flange on said side panel including a flange extending rearwardly therefrom, a sealing member mounted on said laterally extending frame portion longitudinally of said slot for obstructing the passage of gases from the interior of said oven through said slot, said sealing member including portions cooperating to form a groove opening forwardly of said frame, said rearwardly extending flange on said side panel being received within said groove to retain said side panel in position on said frame, and means for securing the rearward end of said side panel to said frame.

7. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged .on said frame, said door and said frame including portions along a side edge of said opening extending laterally outwardly from said opening in spaced relation with each other when said door is closed to form a slot in the side, of said stove, a side panel extending rearwardly of said stove from said slot and including a front flange extending within said slot in overlapping relation with said laterally extending frame portion, a baiile mmber mounted longitudinally of said slot on said laterally extending frame portion and projecting forwardly therefrom, said door being formed with a groove adapted to receive said baflie member therein when said door is closed to obstruct the passage of gases from the interior of said oven through said slot, said front flange on said side panel including a flanged inner edge extending rearwardly of said stove, and said baflie member including a portion projecting forwardly of said frame at a position spaced laterally outwardly of said groove for interengagement with said flanged edge of said side panel to retain said side panel in position.

8. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame including portions along a side edge of said opening extending laterally outwardly from said opening in spaced relation with each other when said door is closed to form a slot in the side of said stove, a side panel extending rearwardly of said stove from said slot and including a front flange extending within said slot in overlapping relation with said laterally extending frame portion, a baflie member mounted longitudinally of said slot on said laterally extending frame portion and projecting forwardly therefrom, said front flange of said side panel having a rearwardly extending flanged edge, said baffle including a portion forming a groove for receiving said flanged edge, means for securing the rearward end of said side panel to said frame, and said laterally extending" door portion having a groove therein arranged to receive said baffle therein when said door is closed to obstruct the 7 passage of gases'from the interior of said-oven through said slot. 9 7

9. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame including portions adjacent the sides and top of said opening positioned for abutting contact when said door is closed, a flange on said frame adjacent the top of said openin projecting forwardly of said door-contacting portion thereof above the upper edge of said door and in spaced relation therewith when said door is closed, said door and said frame including portions along a side edge of said opening extending laterally outwardly of said contacting side portions thereof and in spaced relation with each other when said door is closed to form a slot opening laterally in the side of said stove, means arranged to form a resilient seal between the upper edge 2 of said door and said forwardly projecting flange when said door is closed, and interfitting means carried by said laterally extending frame and door portions laterally outwardly of said abutting portions for obstructin the passage of gases :1

from the interior of said oven through said slot when said door is closed.

10. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame including portions adjacent the top of said opening positioned for abutting contact when said door is closed, said frame including a flange extending forwardly of said door-contacting portion thereof above the upper edge of said door and in spaced relation therewith when said door is closed, a cookin top on saidstove including a front panel positioned above said oven opening, said panel having a flange along the inner edge thereof extending rearwardly above said door when said door is closed and forming a junction with said forwardly extending frame flange at a position substantially forward of said door-contacting frame portion, and means ar- 1 ranged to form a resilient seal between the upper edge of said door and said forwardly projecting flange when said door is closed, said seal means being positioned between said junction and said contacting frame and door portions in the closed position of said door to prevent the passage of gases from the interior of said oven through said junction into said cooking top.

11. A cooking stove of the character described including an oven and comprising a frame form- 1 ing an opening for said oven, an oven door hinged on said frame, said door and said frame including portions adjacent the top of said opening positioned for abutting contact when said door is closed, said frame including a flange extending forwardly of said door-contacting portion thereof above the upper edge of said door and in spaced relation therewith when said door is closed, a cooking top on said stove including a front panel positioned above said oven opening, said panel including a 'fiange along the lower ill --in..overlapping relation with the forward edge of said forwardly projecting'frame flange and terminating at a position substantially forward of said door-contacting frame portion to form with said frame flange a junction located forwardly of said door-contacting frame portion, and means arranged to form a resilient seal between the upper edge ofsaid door and said forwardly projecting flange when said door is closed, said seal means being positioned between said flange on said front panel and said contacting frame and door portions in the closed position of said door to prevent the passage of gases from the interior of said oven through said junction between said front panel and said frame into said cooking top.

12. A cooking stove of the character described including an oven and comprising a frame forming an opening for said oven, an oven door hinged on said frame, said door and said frame includin portions adjacent the top of said opening positioned for abutting contact when said door is closed, said frame including a flange extending forwardly of said door-contacting portion thereof above the upper edge of said door and in spaced relation therewith when said door is closed, a cooking top .on said stove including a front panel positioned above said oven opening, said panel including a flange along the lower edge thereof extending .rearwardly and forming a junction "with the forward edge of said forwardly projecting flange at a position substantially forward of said door-contacting frame portion, and a sealing strip secured to said forwardly projecting flange between said junction and said door-contacting frame portion, said sealing strip including a resilient portion extending downwardly and rearwardly into wiping contact with the upper edge of said door in the closed position of said door to form with said upper edge of said door a seal preventing the passage of gases from the interior of said oven through said junction into said cooking top.

BERTRAND B. KAHN. PAUL F. METZ.

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

UNITED STATES PATENTS Number Name Date 1,604,433 Weir Oct. 26,1926 1,680,456 Firestone Aug. 14, 1928 1,708,455 Tinnerman Apr. 9, 1929 1,798,115 Antrim 1 Mar. 24, 1931 1,872,020 Taylor Aug. 16, 1932 1,935,567 Heidbreder Nov. 14, 1933 1,944,394 Bales et al. Jan. 23, 1934 2,013,931 Teller et a1 Sept. 10, 1935 2,063,647 Wilkinson et al Dec. 8, 1936 2,140,408 Sherman Dec. 13, 1938 2,161,537 Stookstrom et al. June 6, 1939 2,339,398 Hennessy et al -1 Jan. 18,1944 2,405,305 Hennessy et a1 Aug. '6, 1946

Images