US1969197A

US1969197A - Oven door

Info

Publication number: US1969197A
Application number: US658421A
Authority: US
Inventors: Jesse W Barker
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-02-24
Filing date: 1933-02-24
Publication date: 1934-08-07
Anticipated expiration: 1951-08-07

Description

J. w. BARKER OVEN DOOR Filed Feb. 24, 1935 2 Sheets-Sheet l Aug. 7, 1934. J. W BARKER 1,969,197

OVEN DOOR Filed Feb. 24, 1933 2 sheets-sheet 2 Patented Aug. 7', 1934 om Doon Jene' aum, Genen, N1 Y.'

Application February 24, 19.733, Serial No. 658,421

40mm.' (aiguiser This invention relates to improvements in stove doors and is especially intended for use on gas ranges for the oven and broiler compartments.

'Ihe invention has for its general object the.

provision of a door of' sturdy, yet light construction which can be quickly and conveniently asaembled and disassembled.

Another object of the invention is torprovide l0 improved means for securing the door lining in place without the use of lugs welded or otherwise secured to the door.

A further object of the invention is to pro vide a door having slip hinge connection which permits of the door being readily disconnected from the front frame of the stove.

A still further object of the invention is to provide a door having a slip hinge connection which will permit of the door spring being readily disconnected .without the necessity of 'dismantling the door.

n 'I'he de ed construction of the invention will be more particularly explained in connection with the accompanying drawings, wherein a pre-` ferred embodiment of the invention is illustrated.

In the drawings: l

Figure 1 is a fragmentary vertical sectional view through a gas range showing the drop doors thereof in open and closed position and also ao'showing in dash dotted lines a door pulled away from the frame;

Figure 2 is a fragmentary horizontal sectional view on line 2 2 of Figure 1, the drop door being shown in open position;

36 Figure 3 is an enlarged vertical sectional .view

through one of the drop doors of the oven ;l

Figure 4 is an enlarged horizontal sectional view on line 4-4 of Figure 3;

Figure 5 is a fragmentary horizontal sectional aogview through the front frame of the oven showing the slip hinge connection between the door and front frame;

Figure 6 is a perspective view of the outer plate of the door with the truss rod in proper position;

'and

Figure 'I is a perspective view of the lining of the door withthe slip hinge brackets attached thereto.

Referring more particularly to the drawings 1 denotes a gas range having a front frame or Jamb 2 provided with the usual upper and lower baking oven and broiler compartment openings 3 anda reqiectively. The drop doors 5 and 6 for these compartments are hingedly connected to the frame at their lower ends in a manner v1i), extending at right hereinafter described, and as one door isy substantially identical with the other, a description of the baking oven door 5 will suffice for both.

Door 5 comprises an outer or front pressed steel plate 7, the outer faceof which'is finished 00 in enamel as usual, and an inner plate or lining v9 also of pressed steel construction. The outer plate 'Itis formed on allfour sides with a flange angles to the face of the plate, the-outer edge of this flange is rolled inwardly and 'downwardly upon itself to present a smooth rollededge portion 1l, `which'greatly stiflens the plate and eliminates sharp edgesv which heretofore have frequently caused" injury to workmen in the assembly and enamelling departments. These rolled edges at the lowerside of the front plate also cooperatewith the slightly offset edge 12 of the lower side of the inner plate or lining 9 to facilitate assembly and to prevent separation of the two plates at this point. 'Ihe 75 top and two side portions of the plate 9 are formed with slightly flexible right angularly extending flanges 15 which snugly engage the rolled edges l1 and rest against the inner face vof the plate l'7. The space between the two plates is filled 80 with heat insulating material 13, such as rock wool.

Angular hinge brackets or blocks 16 secured r to the lower inner corner portions of the lining plate by screws 17 seat snugly against the side 66 flanges 28 on plate 7. vApertured ears 1,8 formed on the hinge brackets and extending through slots 19 in plate 9 and through slots 19l inthe front frame of the stove are adapted to receive screws20 to which the outer ends of the con- 90 ventional counter balancing door springs v22 are secured, but if desirable the springs may be hooked directly in the threaded openings 21. These springs extend horizontally to the rear of the oven between the outer side wall 23 of the stove and 95 the side lining 24, where they are connected to adjusting screws 25 extending through the back wall 26 of the stove., Removal of the springs for repair or renewal can be conveniently. effected without dismantling the door, by merely taking down the lining plate-27 for the back wall of thev stove, and of course disconnecting the outer end of the springs from apertured ears 18. The latter operation can be accomplished without dismantling the door.

The upper sides or portions of the inner and outer plates are securely fastened together adjacent their corners, the areas most likely to warp, by means of a tie or truss rod 29 which extends longitudinally of the doors and engages with its 110 i lugs 39. When the door is closed the end wallsl ends beneath the rolled edges 11 on the side flanges 10. This bar rests upon the insulation 13 in spaced relation to the plates'l and 9 and is secured to the inner plate 9 by headed screws 30 which pass loosely through openings 31 in the plate 9 and threadedly engage aligned threaded openings 32 in the tie rod. As the rod 29 does not directly `Contact with the inner faces of the opposing plates, it follows that when the screws 30 are screwed home the rod will' beresiliently drawn towards the lining plate into clamping engagement beneath the rolled edges 11. The slight bending of the tie rod gives the latter a truss effect and also prevents the screws 30 from becoming loose. Insulation 13 spaces the bar a considerable distance from the inner face of plate 'i' thus greatly facilitating `rproper alinement of the

openings

31 and 32 preliminary toinscrting screws 30. A handle member 33 is secured in Aplace by means of a long bolt 34 extending through

perforations

35 and 36 in the upper intermediate portions or sides of the respective plates ceiving apertured lugs 39 projecting forwardly from the front frame of the stove. and with side recesses or pockets 40 for pivotally seating pivot.

pins 41 extending loosely through the apertured 42 of the pockets will rest upon the pivot pins and pivotally support the door,'and accidental displacement of the pins or disconnection of the 'door'from the frame will be prevented by the side lwalls 43 of the pockets. However it will be noted that when the door is swung to open or horizontal position, the door can be pulled away from the frame thuscausing the pivotpins to be withdrawn from the pockets. The door springs 22. which resiliently maintain the slip hinge connection between the two parts of the hinge, of course must be disconnected before the door can be removed.

The lower side flange l0 of the front plate 7 is cut away at 44 adjacent its ends to expose the slotted and pocketed portion of the hinge brackets, and the latter extend very close to but terminate short of these openings to facilitate insertion or pivot pins 4l in their respective pockets and to permit of close fit between the door and front frame.

Broiler door 6 is of substantially the same construction as door 5 with the exception that hinge brackets 16 are formed with a long arm 18' in lieu of the apertured ears 18. The slots 19'? in the lining plate through which the arms 18 extend are also somewhat longer than the slots 19. Coil springs 22' connected at their upper ends to openings 20' in the arms 18' are connected at their lower'ends to the front frame 2. Shoulders 44' on bracket arms 18 engage the upper ends of slots 19' and support the door when in open position.

Having thus described my invention:

What I claim as" my invention is:

1.Y An oven door comprising flanged inner and outer plates, means for interlocking the lowe'r portions of said plates together, a tie rod loosely arranged between the upper portions of said plates, means on the ilanges 0I said outer plate adapted to engage said tie rod to limit movement of said rod toward said inner plate, and means for connecting the tie rod to said inner plate and clamping said rod to the said means on the flanges -fof said outer plate.

2. An oven door comprising spaced inner and outer plates. said outer plate having flanges on all four sides formed with rolled edges, the inner plate having flanges on its topl and side portions interlltting with said rolled edges, means o'n the lower side of said inner plate engaging beneath the rolled edge on the bottom side of said outer plate, a tie rod extending across the upper portion and between said plates loosely engaging the sides of the outer plate, and means for securing the tie' rod to the inner plate.

3. An oven door comprising spaced inner and outer plates. said outer plate having right angularly disposed flanges on all four sides thereof, said flanges having rolled edges, the inner plate having right angularly disposed flanges on its top and side portions resiliently interfltting with said rolled edges, the lower side of said inner plate having an offset edge adapted to engage beneath the lrolled edge on the bottom side of said outer plate,fa tie rod engaging at-its ends beneath the rolled edges on the side flanges of the outer plate, and means for connecting the tie rodto the said inner plate.

4. An oven door comprising spaced inner and outer plates, said outer plate having right angularly disposed flanges on all four sides thereof. said flanges having rolled edges, the inner plate having right angularly disposed anges on its-top and side portions resiliently interfltting with said rolled edges, the lower side of said inner plate having an offset edge adapted to engage beneath the roller edge on the bottom side of said outer platea tie rod engagingl at its ends beneath the rolled edges on the side flanges of the outer plate, spaced from the inner face of said plate, and means for connecting the tie'rod to the said inner plate.

JESSE W. BARKER.