US1560879A - Stove door and frame construction - Google Patents

Description

Nov. 10, 1-925- A. H. TINNERMAN STOVE DOOR AND FRAME CONSTRUCTION Filed Dec. 6, 192a 4 .b/ I ZA TOB @654 JM ouenaaA/( 0121;

50 slightly ajar;

. Patented Nov. 10, 1925.

PATENT [or-rice.

ALBERT H. TINNE RMAN, OF CLEVELAND, OHIO.

STOVE DOOR AND FRAME CONSTRUCTION.

Application filed December 8, 1323: Serial No. 678,870.

To all whom it may concern:

Be it known that I, ALB'nR'rH. TINNER- MAN, a citizen of the United States residing at Cleveland, in the county of uyahoga 43 and State-of Ohio,' have invented a certain new and useful Im rovement in a Stove Door and Frame 'onstruction, of which the following is a full, clear, and exactde- I scription reference being had to the accompanymg .drawin This invention re ates to-stoves and has for its general object the provision of a frame construction comprising the front of a stove such as a as range, embodyin features which are' 'rected to prevent t e; de-

struction or damaging of enamel finish of -'the frame consequent-to the escape of hotgases from the oven or ovens thereof when the doors are open. It is the present custdm to manufacture ranges in such manner that'the panels and frame members and in fact all ex osed parts of the stove may be enameled or highly polished for the sake of'ap arance and cleanliness. It is desirable t at a white'enamelfinish be provided on the front'portions' of the stove and particularly on the doors.

A vitreousand. door frames thereof. enamel which is more or less brittle and preferably white in color gives the most desirable finish, but the manufacture and service upkeep. of stoves so finished involves 1 many attendant difiiculties after the, stovesare placed in domestic service.

tion of that portion of the enamel finish which is immediately above the oven doors due to impinginghot gases upon the enameled surfaces. when the oven doors areopened'or when the doors are slightly ajar.

- The purpose of this invention therefore is to rovide an oven door and frame con- StIllCt10n WhiOh will protect such enameled surfacing by causing the hot escaping gases tobe-dire'cted aiwa from these enameled surfaces which will insure the prevention of the escaping ofhot gases from the upper portions of the oven, the doors" are more speclfic object of my invention is .the provision of a simple, and effective means'embodiedin-"a stove frame construction in such manner as tobe only an inciden- 5 tal detail'in themanufacturing of the stove "els 15 having an enamel One of the principal difficulties encountered by. manufacturers is the rapid destruc-.

parts whereby I obtain the desired result' economically.

" Other objects of my invention will hereind after be set forth in the following descriptionwhich refers to theaccomtpanymg drawing illustrating a preferre embodiment thereof. The essentlal characteristics are summarized'in the claims.-

either a casting or a stamped or pressed I metal member .which const tutes the supporting frame for both the bakIIIg OVQIfI 0 door and broiler door in the usual ty gas ran es, thebaking oven usually eing arrange above the broiler. As shown in the drawings I, referably form the front of thestove by e use of a cast frame 10 which constitutes a support for the oven door 11 and lower oven or broiler door 12. These doors are ,attached to the front frame memberlO byisuitable hinge ieces 13 which engage lugs 14 depending romthe lower corners of the door frames. "The door frames, 11 and '12 are usually. P lished 01'' nickeled and are provided wit central panfinish. 3

It is the practice to have an enamel finish on the frame 10 which corresponds to the finish of the door panel 15 and it. is this enamel on the. frame 10- which is particularly subjected to damage by the hot'gases escaping from the upper regions A and B of the baking oven an broiling ovenres ec- 'tively when the doors .are. open. It wil be seen from the drawings that as the doors .swing open the gases will escape through the upper portion of the door openings and be concentrated along the portions 10 or 10" of the frame 10 thus causing a checking or a discoloration of the enamel -finish after the stove is used a short period in the home.

I overcome the above mentioned difficulty in a very simple manner by forming flanges 'or bafiles on the, frame 10 which extend around the u per half of the door opening edges thereo and such flanging may take any form conducive to economical manufacturing. As shown in the drawings the frame 10 is provided with integrally formed flange portions 20 and 21 about the margin of the baking oven and broiler door openings which extend outwardly a suflicient distance to direct the hot gases escaping from the oven regions A and B away from the enameled surfaces-10 and 10 of the frame. When the hot gases, as indicated by the full line arrows in Fig. 3,

escape outwardly and upwardly through the oven door opening the flange 20 will be tion of the air in this space will take place 1 face 10.

due to the rapid outward and upward movement of the hot gases, thus causing cool air to flow inwardly over the enameled sur- The provision of the flanges 2.0

and 21 in, the manner described, it will be seen has a two-fold effect in maintaining protection for the enameled surfacing in that while guiding the hotgases away therefrom, the movement of the hot gases causes a flow of cool air over .these surfaces.

If desired, the lining 30 of the oven doors may be so formed around the rims thereof th t a spring edge 31 may be formed, which, w on the door is closed ,will engage the flanges 20 and 21 thus resulting in an effective sealing action when the doors are closed, If through carelessness of the user the door is not completely closed the lining edges 31 will be effective in preventing the escape of the hot gases.

A stove oven constructed in accordance with the foregoing provisions, as ractice' has shown, will retain the enamel nish in thoseregions which heretofore have shown' marked discolorations and'checking of the enamel.

I claim: I

1. In a stove construction, the combination of a front frame member having exposed surfaces of enamel, said frame having an upper and a lower oven door opening formed therein, doors mounted on said frame for closing the openings and grooves and flanges formed on the frame said flanges extending outwardly from said openings, a portion of the door seating into the groove and overlying the flanges when the doors are closed whereby when the doors are opened hot escaping'ga'ses from the oven may be guided away from the ex- --posed surfaces of the frame.

2. In a stove construction, the/combination of a frame member having an opening,

on the doors for engaging said gas guiding the groove, draws comparatively cool air a closure member therefore, said frame hav-" ing .a finished surface subject to damage by contact with hot gasesand means including a flange and a channeled air pocket between the flange and said finished surface associated with the opening at the upper portion of the perimeter thereof for insu-- lating hot gases escaping therethrough from such finished surfaces. 79 3. In an ovenconstructioma door frame, having an upper and a lower door opening formed therein, doors mounted ,on the frame for, closing said openings, means formed about the perimeter of the door openings for guiding hot gases escaping through the doorways ,away from the outer exposed surfaces of the frame and means means when the doors are slightly ajar. 9

4:. In an oven construction, a front door frame having an upper and a lower oven door opening, doors supported thereby for closing said openings, there being flanges extending outwardly from the frame around the perimeter of the openings and means associated with door linings for engaging said flanges to prevent the escape of hot gases when the doors are slightly ajar.

5. In a stove construction'the combination ofa front frame member having an 'oven door opening and an enameled surface extending across the top of the frame adjacent the door opening, an oven door mounted on the frame, said frame having a flange extending downwardly at an obtuse angle with the enameled surface and outwardly beyond said surface when {the door is open whereby buoyant hot gases are deflected beyond the enameled surface in escaping from the oven" 6. In a stot e construction, an oven door frame,-the exposed surface adjacent the top of the door frame, adapted to be coated with enamel subject to cracking'when contactin with hot gases, a groove at the edges of sai surfaces and a flange extending outwardly at an angle to said surfaces, the flange forming the side wall of the groove and a door having a lip portion adapted to enter the groove when the door is closed, whereby when the door is'opened, vacuum caused b the withdrawal of the lip from over the enameled surfaces, the flanges cooperating with the groove in protecting the enameled surface byv deflecting the 'heated gases outwardly away from the surfaces.

In testimony whereof, I hereunto aflix my signature.

ALBERT H. TINNERMAN.

Images