US 1463061 A
Description (OCR text may contain errors)
July 24', 1923.
I. H. PAWLICK PORTABLE OVEN Filed April 17 1922l I: I M@ ATTORNEYS Patented July 24, 1923.
UNITED STATES intatti PATENT Friet.
IGNATZ H. PAWLICK, OF CHICAGO'7 ILLINOIS, ASSIGNOR TO ENTERPRISE PORTABLE OVEN CO., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. i
Application filed April 17, 1922. Serial No. 553,353."
T 0 @ZZ whom t may concern.'
Be it known that I, IGNATZ H. PAWLICK, a citizen of the United States. and a. resident of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Portable Ovens, of which the following is a full, clear, and exact description.
My invention relates to improvements in portable ovens, anditconsists in the combinations, constructions and arrangements herein described and claimed.
An object of my invention is to provide a portable oven, which may be readily disassembled and packed in a relativelysmall space for shipping.
A further object of my invention is to provide a device of the character described, kin which a plurality of shelves of novel construction are disposed. i
A further object of my invention is to provide a device of the character described', which is adapted to use various kinds of heat.
A further object of .my invention is to provide a device of the character described, which makes use of oven doors of novel construction.
Other'objects and advantages will appear in the following specification, and the novel features of the inventionwill be particularlypointed out in the appended claims.
Hy invention is illustrated in the accompanying drawings, forming part of this application, in which- Figure 1 is a perspective view of the oven, portions thereof being broken away.
j Fig. 2 is a front elevation of a portion of the device,
Fig. 3 is a section along the line 3-3 of Fig. 2,
Fig. 4 is a section along the line 4-4 of Fig. 2.
In carrying out my invention, I provide a plurality of walls 1, which form a casing,
as clearly shown in Fig. 3. The walls 1 are insulated, as with mineral wool 2, which is disposed between sheets of metal 3. The walls 1 are secured to each other by means of rivets or bolts 4. As heretofore stated, the walls 1 form a casing or oven which is supported by legs 5. The easing 1 has a flue 6 and a draft regulator 7.
A frame 8 carrying a plurality of shelves 9 is disposed in the oven. This frame is built up by means of angle irons 10, which are bolted to each other by means of transverse angle irons 11 (see Figures 1 and 3).'
The transverse angle irons 11 have oneof theirsides extending inwardly from the frame 8. These sides carry sheet metal shelves 12, the shelves in turn supporting tile blocks 13.` The tiles 13 `are further locked in place by means of transversely eX- tending tiles 14. The tiles 14 are secured to the angle irons 1() by means of brackets' 15. The frame 8 is spaced from the walls of `the oven by means of brackets or spacing members 16. The frame 8 also carries baffle plates 17, which project laterally from the frame and are spaced slightly from the walls 1. In Fig. 1, I have shown an angle iron frame 18, which is spaced below the lowermost shelf 9. This frame 18 supports tile pieces 19, whichl extend between the sides of the frame 18. The pieces 19 form a heat deflecting shelf for the lowermost shelf 9. In the 4present instance, I have shown the oven as being provided with gas burners 20', butit is obvious'that any other means of heating may be used.
v The front wall has a draft-.door 21'tlierev in and a door 22. The door 22 is vopened when it is desired to lightthe burnersi20. A plurality of oven doors 23 are disposed above the door 22 and are in communication with the shelves 9. In Fig. 4,"I have shown an enlarged detail of one 0f the doors 23. The door 23v is 'adapted to closevv an opening .24 in the oven, this opening being disposed parallel with one of the shelves 9. The transverse angle iron 11 of the shelves 9 also carries an angle iron 25 which extends between the shelf 9 and the inner surface of the front wall of theoven.
The doors 23 are of novel construction and are adapted to be locked in closed or opened position. As clearly shown in Fig-V ures 2 and 4, the front wall of the oven carries4 brackets 26, which are disposed in each side of the doors 23 and adjacent to the lower ends thereof. These brackets have slots 27 therein, in which trunnions 28 are slidably disposed. A strip 29 is secured to each side of the door 23 by means of rivets 30 or the like, the strips having square blockshaped projections 31 at the lower ends thereof. The trunnions 28 are carried by the projections 31. position, places the projection 31 below the The door when in closed ,f
opening .24. From this construction, it will be observed that the door 23 has to be manually lifted before it can be swung'about the trunnions 28 since the corner 32 will engage with the front side of the oven wall and prevent the swinging of the door unless the' projection 31 is lifted so as to free the corner 32 from the wall. `Since the door is lifted, the corner 32 is free to swing inwardly toward the opening 24 and thus permit the door to swing about 4th-etrunnions 28. vIt is further to .be noted that the door 23 will be held in open position by means ofthe blockl, since the blockl will engage with the front wall of the oven and will support the door in open position.
From the foregoing -description of the various parts of the device, the operation thereof may be readily understood. As here'- tofore stated, the device `can be readily disassembled and packed into a small space for shipment. The walls 1 are disassembled by removing` the bolts t therefrom. In a like manner, the frame 8 may be disassembledk by removing the bolts 33 therefrom, whereby the various members can be packed into a small space. The device is simple in construction, and is efficient for the purpose intended. It is obvious that as many shelves can be disposed in the frame 8 as is desired. The baiie plates 17 form a circuitous path for the heat as it passes upwardlythrough the oven. #In this manner, the heat is distributed evenly throughout all the shelves 9 and elfectually bakes the articles disposed thereon. The device is simpleinconstruction and is readily portable.
l. The combination with an oven comprising a plurality of side walls vremovably secured to eachother, of a frame removably disposed in said oven, said frame being composed of a plurality of members bolted together, shelves carried by said frame, bafie plates carried by said frame and being disposed between said framer and the oven Walls, an oven door communicating with each shelf, and a plate carried by xeach shelf and extending to the oven door.
2. In an oven construction, a Wall having an opening therein, brackets disposed adj aoent to thev sides and bottom of the opening, said brackets being carried by said wall and each having a slot therein, a door adapted to close the opening, 4said door having square projections adapted to .normally engage with said wall to prevent the swinging of said door with respect to said Wall, trunnions carried byl said projections :and being slidably disposed in said brackets, said. projections registering with theopening when said door is raised,r whereby the door can be opened or closed.
3. The combination with an oven having demountable insulatedk walls, of a shelf supporting frame disposed in said oven, means for centering said frame with respect to the oven walls, baflie plates carried by said frame, a plurality of tiled shelves carried by said frame, an oven door in communication with each shelf, and a plate carried by each shelf and extending tothe oven door.
4. The combination with an oven comprising a plurality of side walls removably secured to each other, of -a frame removablyk disposed in said oven,.said frame being composed of a plurality of members bolted together, shelves carried by said frame and baffle plates carried by said frame and being disposed between said frame andl the oven walls.
5. The combination with an oven comprising a plurality of side walls removably secured to each other, of a frame removably vdisposed in said oven, said frame beingk com posed of a-plurality of members bolted together, shelves carried by. said frame, vand an oven door communicating with each shelf.
IGNATZ AH. PAWLIQK.