Sheet-metal oven

Abstract

Claims

Get. 21, 1924. I 1,512,178 ' H KIELBEIRG SHEET METAL OVEN Filed Oct. 11 1922 2 Sheets-Shem. l H.v KIELBERG SHEET METAL OVEN 2 Sheets-Shes 2 Filed 0ct.. 11, 2 Patented Get. 21, 19241. ATET oFFicE. HENRY KIELBERG, OF MARTINS FERRY, OHIO, .ASSIGNOR TO WHITAKER-GLESSNER COMPANY, OF WHEELING, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA. SHEET-METAL OVEN. Application filed October 11, 19-22. Serial No. 593,805. ToaZZ whom it may concern: Be it known that I, HENRY KIELBERG, a citizen of the United States of America, and resident of Martins Ferry, county of Belmont, and State of Ohio, have inventedcertain new and useful Improvements in Sheet- Metal Ovens, of which the following is a specification. v This invention relates broadly to sheet metal ovens, and more specifically to an oven of the portable type designed for inlgunting upon stoves, hot plates and the The primary object of the invention is to provide a portable sheet metal oven of knock-down form composed'of parts which may be quickly-and conveniently set up and knocked down as occasion requires, which is strong, rigid and substantial when said parts are properly assembled, and which when knocked down may be conveniently packed in relatively small compass either for storage purposes or for shipment. With these and other objects in view the invention resides in the features of construction, arrangement ofv parts and combinations of elements which will hereinafter be fully described, reference being had to the accompanying drawings, in which Figure 1 is a frontvelevation of the invention with its parts fully assembled; Figure 2 is an end elevation of the same; Figure 3 is a section on line 33, of Fig. 1, showing the oven door in open position; Figure 4: is an upper edge view of the oven casing in its collapsed form; Figure 5 is a part'ial horizontal section on line 55, Fig. 2; ' Figure 6 is an enlarged fragmentary section taken on line 66, Fig. 3; and- Figure 7 is an enlarged fragmentary section taken substantially on line 7-7, Fig. 2. Referring to said drawings, 1 indicates the front wall and 2 the rear wall of a col- .lapsible sheet-metal casing which, inits extended form, is rectangular in shape. Said front wall 1 has each of its opposite ends turned rearward at a right angle to the plane of said wall, forming end portions 1 having substantial width. Likewise, end portions 2 are formed by turning the ends of the rear wall 2 forward at right engles to the plane of said Wall. A panel 3 of rectangular form interposed between the adjacent end portions l and 2 complements said portions in forming the ends ofsaid casing, said panel being hinged at its front and rear vertical edges to said portions 1 and 2, respectively, as shown at 4 and 5. Due to this hinged arrangement of the ends, thecasing is rendered foldableto and from approximately the collapsed form shown in Fig. 3 of the drawings. The lower edges of-the walls 1 and 2 are provided with narrow inturned flanges 1" and 2", respectively, and the lower edges of the end panels are likewise turned inward to form flanges 3 Said flanges serve-not only as foot portions upon which the casing stands, but also as supports'for the edges of a rectangular bottom '6 which is insertible and removable through the top of said casing and which, when seated upon said flanges serves effectively to brace the lower part of the casing. Said bottom has therein one or more large central openings 7 defined by an encircling stiffening flange 8, said opening or openings being adapted to permit heat and flame to unobstructedlyenter the interior of the casing from the burners of a stove (not shown) uponvvhich the casing is seated when in use. 1 Removably disposed against the inner face of the rear casing wall 2 is a sheet-metal plate or shield 9, preferably corrugated-for stiffening purposes, whereby said rear wall is protected from the heat, said shield having its lower edge resting upon the bottom 6'. The opposite ends of vsaid'shield are turned forward and thence inward into hook-like form to provide channels 10. Received in said channels are outwardly turned flanges 11 formed on the rear vertical edges of plates 11 which serve to shield the end walls of the casing from heat, said shields .11 also being preferably corrugated- The front edges of said shields 11 have outturned flanges 11 which seat against the end portions 1* closely adjacent to the angles between said portions and the front wall 1, asshown in Fig. 5. I A door 12 hinged at its lower edge to the wall 1 is normally disposed in upright closing relation to an opening 13 provided in said wall and through which access is had to the interior of the oven for the introduction and removal of cooking vessels, baking pans, and the like. Said door open- 1 able into and out of locking relation to the interior face of the portion of the front wall -1- loca ted directly over the door opening 13, said members 16 being carried by the stem portions of-rotatable door-handles 17. Pivformed on the door. said member extends through a hole pro otally attached to the opposite lateral edge portions of the door are members 18 by which saiddoor is firmly supported in its horizontal open position to form a shelflike support. Each of said members consists of a wire shaped to form anarcuately curved body and outerand inner end terminals 18 and 18 respectively,'the terminal 18 being pivotally mounted in a loop-like keeper 19 The curved body of vided therefor in the wall 1 adjacent to the 'door and is movable through said hole in opening and closing movements of the door. The inner terminal 18 is down-turned and is movable to and from seated "relation to the wall 1 through a cut-out portion or recess 21 provided therefor in the adjacent flange 11 of the'adj'acent end shield 11. Mounted upon the top of the casing is a cover, generally designated by the reference character 22 by means of which the upper end of the casing walls are heldin rigidly braced relation; Said cover comprises a top plate 22 having suitably attached'to the under side thereof a downwardly dished shield plate '22 which has a size and form for fitting closely within the embrace of said casing walls, as shown in Figs. 3 and 7. Said cover is held in closely seated position by spring fingers 23 which depend from the under side of the cover and which are adapted to be sprung into and out of apertures 24 provided therefor in the endpanels 3. The said cover and the attaching means therefor constitute the subject matter of a companion application, Serial No. 593,806, to which reference is herein made for a complete description. The lowermost rack 14 embodies means whereby heat and flame from the underlying stove are prevented from coming into direct contact with pans or vessels mounted thereon; the specific structure involved being disclosed in a companion application, Serial No."593,8 0 7,- to which reference may be had for a description thereof. ' "The oven "described is designed to be 'tangular casing having the walls thereof in collapsible hinged relation, the front wall of said casing having a doorway therein, abottom removably mounted within the lower part of said casing in bracing relation to the walls of the latter, shield plates removably mounted adjacent to the rear and end walls of said casing, said end shield plates being disposed in bracing relation to said rear shield plate, rack removably mounted with in saidcasing, and bracing said end shield plates, anda cover detachably mounted upon the top of said casing in bracing'relation to the walls of the latter. 2. A knock-down oven comprising a rectangular casing having the walls thereof in collapsible hinged relation, the front wall of said casing having a doorway therein, said casing walls having inwardly directed flanges at their lower edges, a bottom seated upon said flanges in bracing relation to the casing walls, said bottom being insertible through the interior of said casing from'the top of the latter, shield plates removably mounted adjacent to the rear and end walls ofsaid casing and slidable vertically to and from seated relation to said bottom, said end shield plates being interengaged with and bracing said rear hield plate,'racks slidable horizontally into and out of supported bracing relation to said end shieldplates, and a cover detachably seated upon said casing in bracing relation to the walls of the latter. 3. A knock-down oven comprising a rectangular casing having the walls thereof in collapsible hinged relation, means 're'mov ably mounted within the lower part of said casing for bracing said casing walls, shield plates removably mounted within said casing adjacent to the end walls of the "latter, means for bracing said plates in upright position, said plates having flanges whereby they are maintained at a spaced distance from said end walls, the front casing wall through the front casing wall :adjacent to the end walls'of the casing and having terminals for seating against said front wall, the foremost flanges of said shield plates being recessed to permit passage of'saidterminals, and a cover detachably seated upon said casing in bracing relation to the walls of the latter. 4;. A knock-down oven comprising a rectangular casing having the Walls thereof in collapsible hinged relation, a bottom removably mounted within the lower part of said casing for bracing said casing walls, shield plates remo-vably mounted within said cas- .ing adjacent to the'end walls of the latter, said plates having ledges formed thereon, racks slidable to and from seated relation to ably mounted within the lower part of said casing for bracing said casing walls, shield plates removably mounted within said'casing adjacent to the end walls of the latter, a shield plate removably mounted adjacent to the rear Wall of said casing and abutted and braced in place by said end plates, said end plates having ledges formed thereon, racks slidable to and from seated relation to said ledges and whereby said end plates are braced, and a cover detachably seated upon said casing in bracing relation to the walls of the latter. In testimony whereof, I afiix my signature in presence of two subscribin witnesses." HENRY ifiELBERG. Witnesses: H. E. DUNLAP, M. T. MA IoN.

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