US2743719A - Cookstoves - Google Patents

Description

H. M. REEVES May 1, 1956 COOKSTOVES Filed Oct. 9 1951 cmcrbe vt'. )Q @aveu {7g4/@144, (fl-Homey CUKSTVES Herbert M. Reeves, Kankakee, lill., assigner to Florence Stove Company, Gardner, Mass., a corporation of lli/lanl sachusetts Application October 9, i951, Serial No. 25ll,l.33

l Claim. (Cl. 12e- 21) The invention relates to improvements in gas Cooltstoves and more particularly to table top coolrstoves of the type adapted to be installed flush against the wall.

One object of the invention is to provide a bacltguard for stoves of the above general character constructed and arranged to vent the hot oven gases and the cooling air circulated between the stove and the wall in a manner which minimizes air movements along the adjacent wall and thus etectively eliminates soiling of the wall.

A more specic obiect is to provide a bacltguard of simple and inexpensive construction which includes a common venting system for both the hot oven gases and the air which is circulated between the stove and the adjacent wall and which effectively directs the air and gas away from the wall against which the stove is installed.

Gther objects and advantages of the invention will become apparent from the following detailed description of the preferred embodiment illustrated in the accompanying drawing, in which:

Figure l is a fragmentary perspective view of a stove and bacltguard assembly embodying the features of the invention, the grille bars for the bacliguard being broken away to show a portion of the ilue box for venting the oven gases.

Fig. 2 is a fragmentary sectional view through the stove top and backguard taiten in a vertical plane substantially on the line 2-2 of Fig. l.

White the invention is susceptible of various modications and alternative constructions, l have shown in the drawing and will herein describe in detail the preferred embodiment, but it is to be understood that l do not thereby intend to limit the invention to the specic form disclosed, but intend to cover all modications and alternative constructions falling within the spirit and scope oit the invention as expressed in the appended claims.

For purposes ot' illustration the invention has been shown as incorporated in a divided top coolrstove it), that is, a stove in which the top burners are arranged in pairs at opposite sides of a working top panel ll. Hinged covers l2 overlie the top burners when they are not in use. ln the exemplary stove an oven 13 is disposed centrally of the stove body directly below the working top il and is closed by the usual bottom hinged door lid.

To adapt the stove for installation ilush against the wall, the end panels ol. the stove body are extended to the rear of the back wall lo of the stove so as to detlne an air space 17 of substantial depth extending across the entire back of the stove and substantially its full height. This space is partially closed at the top by extensions of the working top ll and cooking top covers l2 which, in the present instance, are formed at their rear edges with upwardly swept ledges as indicated at lll to conform to similar projections or pedestals it? formed adjacent the rear edges of the end panels l5. Air admitted to the space l through suitable inlet openings near the bottom of the stove and discharged 2,743,719 .lamented May l, 1956 rice 2l through the top opening prevents overheating of the adjacent wall.

As indicated above, the working top panel and burner covers only partially clo-se the upper end of the passage 17, leaving an elongated opening extending approximately the width of the stove for the discharge of the cooling air. This elongated opening is covered by a backguard 20 supported on and suitably secured to the pedestals 19 on the end panels. In accordance with the invention, the backguard is constructed and arranged to direct the discharged air and also the hot oven gases away from the wall against which the stove is installed to eliminate the soiling that inherently accompanies movements of such gas and air along the wall.

Any suitable means may be utilized for carrying the hot gases from the oven to the Vent system provided by the baclrguard 20. In the exemplary stove, the oven 13 is defined by a sheet metal liner 2l suitably spaced from the top panel l1 and the back wall liti to provide an insulating space which is commonly lled with insulation 22 such as glass, wool, or other suitable material. For venting the ho-t gases from the oven the back wall of the liner 2l is formed adjacent its upper edge with a vent opening 23, the opening being framed in this instance by an inturned tiange 24% formed on the back wall i6 of the stove body. The gases issuing from the opening 23 are directed rearwardly and upwardly by a tlue box 25 provided in the space 17.

Referring more particularly to Fig. 2 of the drawings, the hue box 25 as herein sho-wn comprises a sheet metal body 2d ot' rectangular cross section. A. short distance from its upper end the body 26 divides into two branch ducts 27 and Zit. The duct 27 is preferably rectangular in cross section and extends laterally and downwardly into communication with the oven vent opening 23. Flanges 29 may be provided adjacent the end of the duct 27 for attachment to the baclr wall lo in any suitable manner. The duct 28 extends downwardly and is pref erably of the same width but substantially shallower in a front to rear direction than the tlue box 25. lt is open at its lower end to admit air from the space i7 to mix with and cool the hot gases ,issuing from the oven.

The flue box 2S may be somewhat narrower than the oven and is preferably mounted directly back of it with the upper edge of the body 2n substantially ilush with or slightly below the adjacent raised portion lt of the top panel Il. lt is also set forwardly from the rear edges of the side panels l5 ot' the stove body to provide an air space 28a between the llue box and the wall against which the stove is installed. When the oven is in operation the hot gases pass outwardly through the vent opening 23 and duct 27 to mingle with the air rising through the duct and the mixture is directed upwardly at the rear of the work ing top panel lll.

ln carrying out the invention bacltguard 2t) is constructed and arranged to direct the gas and air mixture from the flue box 25 forwardly over the top of the stove and also to direct the cooling air circulated through the space l? forwardly in parallel streams at opposite sides of the stream of air and oven gases. Provision is made for effectively sealing off the space at the back of the stove so that all of the air and gas is directed forwardly instead of owing along the wall above the stove with the attendant soiling and discoloration. As the oven gases are diluted with a substantial quantity of cooling air before discharge from the flue box and then combined with the main stream of cooling air circulated behind the stove, the temperature rise at the front of the stove is barely perceptible.

The bacltguard 2li in its preferred form comprises a sheet metal stamping shaped to present a generally upright front wall 30 merging into a forwardly sloping gently rounded top wall 31. This top wall may extend across the stove body in a straight line if desired, or the central portion may be raised above the level of the end portions as indicated at 32 for the sake o' appearance. End walls 33 are joined to the front and top walls by rounded corner portions. Both the top wall 3l and end walls 33 are extended rearwardly to lie in the same vertical plane as the rear edges of the stove end panels 15. When the stove is installed, those edges abut against the wall and effectively prevent movement of air along the wall.

As will be seen by reference to Fig. 1 of the drawings, the bacliguard Ztl is dirnensioned to extend the full width of the stove and, when supported on the pedestals 19, to overlie the opening for the air space 17 along the back of the stove. To enable it to perform its gas and air directing function, the backguard is provided in its lower portion with a generally concave detlector plate or louvre 35 which terminates closely adjacent each end of the bacltguard. The louvre is disposed within the backguard and is shaped to extend upwardly and forwardly from the wall against which the stove is installed to a point directly above and in spaced relation to the raised rear edge portions 18 of the top panel 11 and burner covers 1.2.. Preferably the lower end portion 36 of the louvre is extended to project into the opening 17 a substantial distance and its lower edge portion 37 is turned rearwardly to abut against the wall and thus assist the other elements of the baclrguard in preventing leakage of air between the background and the wall.

For simplicity and economy of production the louvre 3:5' is desirably as an integral part of the backguard front wall 3Q. 1n other words, the lower portion of the front wall 30 is formed back as shown in Fig. 2 to dene a downwardly and forwardly opening passage 38 with the louvre constituting the top, back and end walls of the same. For improved appearance and to impart additional strength and rigidity to the baeltguard structure, the portion of the front wall 30 adjacent the edge of the louvre may be struck out to form a rounded bead 39 and a raised substantially flat ledge 40 bordering the front or outlet opening of the passage 38.

The passage 38 may be screened by a series of grille bars 41 mounted in the forward portion of the passage and extending longitudinally thereof. These brille bars may comprise thin rnetal strips bent into arcuate configuration and arranged one above the other in spaced relation so as to block a direct View into the passage. By reason of their arcuate shape the grille bars also serve to impart a forward and downward direction to the stream of gas and air issuing from the passage. To facilitate assembly with the backguard the grille bars may be constructed as a unit with suitable supporting elements for retaining them in place in the passage 38.

It will be apparent from the foregoing that the inven tion provides a stove backguard of novel and advantageous construction adapted to minimize air movements along the wall against which the stove is installed. Hot oven gases diluted with cooling air are directed forwardly over the stove top along with all of the cooling air circulated between the stove and the wall to prevent overheating of the latter. Moreover, a double seal is provided between the bacltguard and tbe wall to prevent leakage of air or gas between the backguard and the wall. Soiling or discoloration of the wall above the stove is thus greatly reduced. The improved backguard is simple in construction and adapted to be manufactured at low cost. In particular the formation of the gas and air dellecting louvre integrally with the other elements of the backguard reduces costs to a minimum.

I claim as my invention:

ln a cookstove having a body including side panels adapted to be installed ilush against the wall of a room and having a back wall positioned forwardly of the rear edges of said panels to dene an air circulating space extending across the back of the stove body and opening upwardly along the rear edge of the stove body, an oven in the stove body spaced forwardly of the back wall, said back wall having an opening for venting the hot gases from said oven, a flue box supported in said space, said llue box having a pair o-f ducts communicating respectively with the oven vent opening and with said space and discharging through a common outlet disposed within the opening for the air space, a backguard extending along the rear edge of the stove body, and a detlector plate on said backguard overlying the opening for said air space and the outlet for said line box, said deflector plate extending substantially the full length of said opening and having its rear edge portion disposed in a common plane with the rear edges of the said panels, the front edge portion of said deflector plate being spaced substantially above the top of the stove to define a forwardly opening passage for both the gas discharged from the llue box and the air discharge from said air circulating space.

References Cited in the le of this patent UNITED STATES PATENTS 2,158,881 McCormick May 16, 1939 2,259,639 Iennessy Oct. 21, 1941 2,274,299 Mayer Feb. 24, 1942 2,393,957 Baumgartner Feb. 5, 1946 2,438,035 Buhman Mar. 16, 1948 2,452,715 Bauer Nov. 2, 1948 2,480,044 Reeves Aug. 23, 1949 2,526,890 Mendel Oct. 24, 1950 2,556,445 Reeves June 12, 1951 2,568,276 Eggleston Sept. 18, 1951

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