US2350293A - Deflector and shield for ovens - Google Patents

Description

May 30, 1944. c. STANCHFIELD DEFLECTOR AND SHIELD FOR OVENS Filed July 10, 1941 INVENTOR.

Paiented May 30, 1944 UNITED s ATEs PATENT- OFFlCE 2 ,s5o,29s{

Charles summed, Milwaukee}; we, asslznor'to A. J. Lindcmann & Hover-son Company, Milwaukecrwia, a corporation of Wisconsin Application July 10,1941, Serial No. 401.714 50mm. (cries-s9) Y ciency of the cooking. .Such-adevice must be The improvements relate to gas and electric stoves and ranges and may be applied to other stoves provided with woven, and they have to do more particularly with stoves in which the oven door is so constructed that it opens downwardly and outwardly from the top for insertion, removal or attention to food to be cooked or being cooked therein. They also relate .pri-

tained have never been remedied, due to the,

fact that when the broiler is in use the intensely heated products and even the flame of the broiler ing, and must also be clear of the zone in burner will shoot out of the top of the oven and sometimes cause injury to the person or clothing of an incautious operator, and also in time .will discolor and otherwise damage the enameled handles of the valves and any other projecting that if the operator does not light the gas burner promptly after turning on the gas there will be a flow of the explosive gas and air mixture toward the door opening, which will produce, an explosion and the issuance of flame from the top of the said opening when the burner is lighted.

It is the principal object of the present improvements to overcome these objections by providing a simple and eficient means for directing the combustion and heated gases away from the upper part of the oven door opening and downwardly into the medial portion of the oven, which will also prevent the flow of gaseous fuel toward the said opening from the top or broiler burner, from whence they will pass to the line at the rear of the oven top and be carried off after circulating in the even, due to the direction given them by the deflector and the downward movement of the cold air entering at the top of the opening and between it and the door. This action also has a tendency to confine the heat in the-oven to a great extent when the door is opened and promote the emso constructed and arranged as to work effec-' tively and at the same time leave the door opening and the interior of the oven free of obstruction for the insertion and removal of food to be cooked and which has been cooked therein and for the testing and treating of food while cookwhich the operators hands move.

I have discovered that this can be accomplished by placing a heat deflector of a certain limited size in; a certain position with respect to the upper burner, the oven door and opening and the oven and giving its. certain form and arrangement, which though simple in details of construction, must be adhered to. f

The improvements are illustrated in the accompanying drawing, referred to herein and showing an exemplary embodiment, in'which-- Fig. 1 is a side elevation of 'a range oven with the side wall broken away to expose the parts therein principally in vertical cross sectidh;

Fig.2 is a front view of the same with the oven door opened;

Fig. 3 is an enlarged view similar to Fig. 1 of the deflector and adjacent parts: and Fig. 4 is a similar view of the said parts as shown in Fig. 2.

The even chamber I has the usual side and back walls 2,. 3, bottom 4 and top 5 and centrally in the top thereof is an upwardly extending chamber or recess 6 with back flue 1 leading to the chimney flue 8 in the bottom of which is a baflle 9 which directs the heated gases andsmoke and vapor from the cooking food upwardly while admitting a limited amount of air from the outside entering the bottom of the chimney flue 8 at l0.

The upper or broiler burner II is located at the bottom of the chamber 6 arid has numerous jet orifices II which direct the jets of combustion therefrom downwardly in the direction of the broiler pan l2 and permitting the heat part of which top cooking burners may be located and on the front wall II of this chamber immediately above the top of the oven door opening are the thermostat regulating handle I! and the gas cook handles 20, 2!, 22, also the handle 23 of the top drip tray 24. It is the universal practice to enamel the front wall I8, as well as the other walls of the range and the handles ii to 23, inclusive, and to color the enamel white or other light color, so that when they are subjected to the action of heated gases, smoke and vapor issuing from the top of the oven they will become permanently discolored and their attractive appearance marred, giving them a burnt or smoky look. They also sometimes thus become overheated to such an extent as to burn the fingers of the operator.

Located immediately inside the inner face of the oven door when closed and suspended from the top of the oven between said door and the broiler burner chamber 6 is a deflector and shield 25 mounted in the depending portions of the brackets 26. At the upper edge of the deflector and shield at each end is a pin or lug 25 which enters the pivot hole 28' of the bracket 28, so that the said deflector is swingingly mounted and may swing backward and forward when food or anything else comes in contact with it on being inserted in or removed from the oven. The defleotor and shield consists preferably of a some extent upon the size, construction and ar-' rangement of the oven and the burners and the circulation resulting therefrom. It should, however, be relatively narrow and should extend downwardly into the space between the burner and the top of the oven opening. It should also be used in combination with a flue located at the rear or opposite side of the oven top. -When so arranged, it will intercept heated gases and flame, as well as vapor and smoke and even small particles of flying liquid, such as melted fat or butter and prevent them from issuing from the top of the oven when the door is opened, directing heat and gases of combustion downwardly and permitting a limited amount of the cool outside air to enter the upper edge of the oven and pass downwardly and into the interior thereof therewith, as indicated bythe arrows in Fig. 1. 'Thiscreates a protecting wall at the front of the oven and at the top which not only protects the handles and the face of the range but also to some extent will protect the hands, armsand clothing of the operator. It also prevents the escape of smoke and cooking odors and causes them to pass downwardly and rearwarddly with the gas and to th flue, which is usually provided with a wad of metal wool. That this is a real useful function can be seen from an examination of the metal wool in the flue after a period of use, and is also apparent in ranges now in usewithout the deflector by the discoloration of the handles on its front.

It has been found that a deflector not more than two inches in width will serve the purpose, and when made of small width it can be rigidly vmounted. Its exact position also between the top of the opening and the top burner will be determined to some extent by its width, but in any event, it should be located close to the top front edge of the oven, and must, of course, clear the downwardly and inwardly and away from said or deflectors used for other purposes and to be considered in connection with its size, location and arrangement with respect to the other parts which enables it to perform new and distinct functions.

It also has a further function in the normal operation of the oven, since it directs heated combustion products downwardly in the direction of the food being cooked when the door is closed as well as when it is opened, and permits the operator to test and turn over foods without removing them from the oven and without opening the door fully, and thus increases the effectiveness and conserves the heat of the oven. The improvements also have a further important function when employed in electric ovens having the usual heating coil for broiling in the top of the oven, as in such ovens it is found advisable to leave the oven door open slightly for broiling because the broiler burner, as well as the oven burner, in such ovens is controlled by'the oven temperature and the oven temperature is likely to rise to a point where the temperature control will shut off the current. A similar practice may be followed with the present improvements with ovenshaving gas burner broilers, and it is believed that in this manner a better broiling can be effected due to the circulation of air around the food being broiled, and a broil approximating the quality of open air broiling over live coals thus produced. 7

Various modifications of the embodiment of the invention herein shown and described may be made without departing-from the scope of the said invention, and various uses of it, such as giving the deflector plate 25 a forwardly or rearwardly inclined normal position when desired, may be made.

I claim:

1. The combination-with an oven, a front outer wall extending above it, topand bottomsheating units in said oven, a front door opening extending substantially from top to bottom thereof, a door for such opening and handles projecting from said wall above said opening, of a deflector for heated, gaseous combustion products and other upper edge and handles.

2. The combination with an oven having a.

wall having a recess therein within which said heating unit extends; an opening extending approximately from top to bottom of said oven and a door for such opening hinged at the bottom thereof and opening downwardly and outwardly from top to bottom of the oven, of a deflector for heated, gaseous combustion products and other heated elements moving therewith located adjacent the said top wall of the oven but wholly below said heating unitand in proximity to the upper edge of the said opening and the inner surface of the door top, the portion of said top wall from which said deflector is suspended being door lining. It is to be distinguished from baiiiiis 7i di posed an appreciable distance below the bottom of said recess; said'deflector comprising a relatively narrow rigid strip extending across and depending from the oven top and adapted by the construction and arrangement as stated to intercept products and other elements of the kind indicated moving outwardly in the oven top and air from outside the oven moving inwardly at the upper part of the oven when the door is opened and direct former downwardly and inwardly and away from the upper edge of the door andopening.

3. The combination with an oven having a top heating unit therein and a top wall having a recess therein within which said heating unit extends; an opening extending approximately from top to bottom of said oven and a door for such opening hinged at the bottom thereof and opening downwardly and outwardly from top to bottom of the oven, of a deflector for heated. gaseous combustion products and other heated elements moving therewith located adjacent the said top wall of the oven and in proximity to the upper edge of the said opening but wholly below said heating unit and the inner surface of the door top, the portion of said top wall'from which said 'deflector is suspended being disposed an appreciable distance below the bottom of said recess; said deflector comprising a relatively narrow rigid strip extending across and depending from the oven top and adapted by the construction and arrangement as stated to intercept products and other elements of the kind indicated moving laterally in the ove'ntop and direct them downwardly and inwardly and away from the upper edge of the door and opening when the door is closed as well as when the top of the door is opened, and hinge members on which said deflector is mounted to swing freely inwardly and outwardly on a horizontal axis. 7

4. The combination with a baking and broiling oven having a heating unit therein at its top and a recess in its top within which said unit extends, an opening extending approximately from top to bottom of said oven and a door for such opening hinged at its bottom and constructed and arranged to open downwardly and outwardly from top to bottom of the oven, of a deflector for heated, gaseous combustion products and other heated elements moving therewith located wholly within and at the upper part of the oven and in proximity to the upper edge of the said opening and the inner surface of the door top the portion of the oven top from which said deflector is suspended being disposed' below the bottom of said recess; said deflector comprising a relatively narrow rigid strip extending across and depending from the oven top and extending below the bottom of said heating unit and adapted by the construction and arrangement as stated to intercept such products and other elements moving laterally in the upper part of the oven and direct them downwardly and inwardly and away from the upper edge of the door and opening when the door is closed as well as when the top of the door is opened, there being an imperforate portion of the oven top over said deflector and heating unit and extending from one to the other.

5. The combination with an oven frame having top and side walls, top and bottom heating units therein, said frame having a cooking space between and in communication with said units and a door opening in one of said side walls extending substantially from top to bottom of said space and a door for such opening hinged at its bottom and opening downwardly from top to bottom of the oven, of a deflector for heated, gaseous combustion products and other elements in suspension therein located at the upper part oi and within the said space extending below the bottom of said top heating unit and between it and the upper edge of the said opening, said deflector comprising a rigid strip extending across and depending from the oven top and adapted by the construction and arrangement as stated to intercept combustion products moving laterally in the oven from said units and toward said opening and direct them downwardly within said oven when the oven is closed as well as when the oven is open.

CHARLES STANCHFIELD.

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