US1239632A - Attachment for ovens. - Google Patents

Description

L. D. STEWART).

ATTACHMENT FOR OVENS. APPLICATION Flix-:D 1A-N..22.1915.

Patentd Sept. '1L-191'?.

@vm/imam@ LOUISE D. STEWARD, OF BOISE, IDAHO.

ATTACHMENT FOR OVENS.

rasaese.

Specification cf Letters Patent.

Patented Sept. l1, i991?.

Application led January 22, 1915. Serial No. 3,753.

is more particularly designed for use in connection with domestic ovens.

The object of the invention is to provide a movable shelf for the interior of the oven so that the articles contained thereon may be shifted to different parts of the oven to regulate the cooking thereof.

A further object is to Provide means eX- terior of the oven for moving the shelf to various points within the oven to modify the oven space by increasing or decreasing the size of the heating space in which the article is being cooked, also for positioning the shelf adjacent the fioor of the oven or near the roof thereof.

And a further object is to provide means for retaining the shelf in its adjusted position.

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawing which is made a part of this application,

Figure 1 is a vertical longitudinal sectional view through a kitchen range showing one form of the shelf and its attachment applied thereto; i

Fig. 2 is a vertical transverse sectional view thereof as seen from line 2-2 of Fig. l;

Fig. 3 is a similar view of a modified form; Y

Fig. l is a detail elevation partly in sec tion, of one form of adjusting mechanism for the shelf, and

Fig. 5 is a detail plan view of the means employed for positively retaining the shelf in its adjusted position.

Referring to the drawings, in which similar reference numerals designate corre sponding parts throughout the several views 1 denotes the range proper which may be constructed in any' suitable manner, and 2 indicates the oven therein, the door 3 of the oven preferably having a bulged portion 4.

Rotatably mounted within the oven 2 and extending through the rear wall of the oven and the rear wall of the range, is a shaft 5, said shaft being preferably positioned adjacent the upper portion of the oven and near the rear side wall thereof. Fixedly secured to the shaft 5 and adapted to rotate therewith are sprocket gears 6, one gear being placed adjacent the rear wall of the oven and one adjacent the front wall thereof, and cooperating with said sprocket gears are similar sprockets 7 which are rotatably mounted upon stub-shafts mounted in the frontend rear walls ofthe oven and adjacent the edge of the oven having the door thereon, the sprockets G and 7 being conf nected with each other and caused to rotate in unison by means of sprocket chains 8 so that when the shaft 5 is rotated, the sprockets 7 will be simultaneously rota-ted with the sprockets 6. Fixed to the shaft 5 and in juxtaposition to the sprockets 6 are arms 9, while a similar pair of arms 10 are attached to the sprockets 7, the lower ends of said arms being pivotally secured to a. shelf ll, said shelf being constructed in the usual or any preferred form and employed for supporting the articles being cooked.

As shown in Figs. l and 2, the arms 9 and 10 are of such length that the shelf ll, when in its lowered position, rests in a plane at a point substantially half the height of the oven, but as shown by dotted lines in Fig. 2, the shelf can be positioned adjacent the roof of the oven by rotating the shaft and to facilitate the operation of the shafts and parts attached thereto, from the eXte rior of the oven, a crank 12 is attached to the projecting end of the shaft. The shelf 1l is held in its adjusted position through the medium of the spring-pressed latch 13 carried by the crank 12 and a suitable rack 14 attached to the rear wall of the range, the latch being so positioned that it will be released from the rack when the handle portion of the crank is grasped to operate the same, and when the shelf has been placed in proper position, the releasing of the han dle of the crank will likewise release the latch so that it will again be moved intov engagement with the rack bar and will hold the crank against further rotation.

By properly bulging the door 3, the shelf may be moved to its elevated position adj acent the roof of the oven without opening the door.

In the form shown in Fi g. 3 of the draw ing, the sprockets G and 7 are dispensed with and the arms 9 and 10 are made of such length that when the shelf l1 isin its lower- 5 most position, it will rest adjacent the Hoor of the oven, the operation of the parts for elevating the shelf being similar to that shown' in Figsn l and 2, except that the movements of the arms 10 are regulated by the movements of the arms 9 which latter armsA are fixed to the shaft 5.

This form of construction is `,primarily adaptable for ysupporting and handling heavy articles, andv asshown by dotted lines inA Fig. 3, Ythey articles may befmoved to a point *Wherevtheyf can be removedfrolnthe `shelf-or placedthereon, as the lengths ofthe larms 9" and 10. Karegsuch as to. dispose a portion offthe shelf a distance .beyondthe openifingfin the oven.

In Fig. 4 off the drawing, the construction I'thereinf shown'embodies both features vof the `device previously described in that the arms .15. arel substantially of the same length as nthe arms 9 and v10, and coperating therewith; arefhollow sleeves 1(3,thevlower ends v of'which; are A pivoted` to i the Y shelf as:` in the other ,.forms.

*Withgthis form-of;4 device,1 the sleeves may betelescoped with the arms '15 `andfthe shelf lcarriedfin thelV same relative-position .as the .formfshown in Fig..2, or `by lowering the sleeves their full distance,- theshelf will be disposed in, the same relative-position asin `Eig. 3,- the sleeves being heldv in their ad- `justed.positions on the arms in any sui-table manner as by set screws 17. `Itwill` befun- `Vderstood, of course,ithat the-sleeves 16.; may be adjusted to any point upon the varms l5, .thus disposing the shelf at any required .height Withinthe oven.

By suspending the shelf in the lmanner shown, it will be readily seenthat it can be quickly disposed out .of- `operative Y position -so that the full'capacity ofthe ovenfcanbe used,.or moved to increase or `decrease Vthe .heating space aboveor below thegshelf, as occasion may require, and without. opening the oven door.

In this manner the heat may be uniform throughout the oven or it may be increased inparts thereofby manipulating the position of the shelf as set forth.

I claim:

1. In combination with an oven, a shaft journaled in the side walls of the oven near `thetop,` afvpair ofnormally depending arms secured to said shaft, a pair of stub shafts also journaled in the side-.walls ofthe VovenV .nearzthe top and each carrying a normally .i depending arm, a shelffpivotally secured to ltheflower-ends of said pairs of arms, and

-meansxconnected to theshaft totmoveithe `l3.Am.attachment for .ovenszcomprising y:the combination with ashelf, ofaslflaft ex- :tendingy through` the oven, afgpjair -ofsprockgets fined.,l to said shaftasarmsfalso "Xed' to -saiclshaft yadjacent said sprockets,y asecond set of arms rotatably. mountecton the walls of ftheT oven, sprockets fixed lto; said arms, y sprocket f Chains connecting; said sprockets to cause the second mentioned arms to rotate :witlnthe first mentionedy arms, lthe ends of :said arms being pivoted tol the shelf, means whereby rotating motion may A.be imparted to saidffshaf-t, and means toaheld .the vshaft against casual rotation. Y Y y ,Inf testimony whereof I affix mysignature .in presence of. two witnesses..V

e LOUISE D.- SlEl/VARD. j lVitnesses: Y

l GEORGEv Simms, ,Y

Gr; STEWARD/4 :Gopiesof this. patent may Vbe obtained fortfive. cents each,bysaddressngthe ECpmmissoneu o1'- Patents,

.Washingtom D. C. v

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