US1894268A

US1894268A - Oven rack shifting device

Info

Publication number: US1894268A
Application number: US549662A
Authority: US
Inventors: Milo G Forsyth; Lasiter Roy
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-07-09
Filing date: 1931-07-09
Publication date: 1933-01-17
Anticipated expiration: 1950-01-17

Description

Jan. 17, 1933. M. cs. FORSYTH ET AL 1,894,268

OVEN RACK SHIFTING DEVICE Filed July 9. 1931 [I U lnvenror.

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may be readily accessible without having to reach back to within the oven.

A rimary object of the-invention 1s to rovide means whereby the oven racks Wlll automatically be returned to their normal positions within the oven upon closing the oven door.

A rimary object, of the inventlon 1s to rovi e in combination with the rack mov mg mechanism means whereby anyone or all of the oven racks may remain stationary within the oven u on opening and closing the oven door an be independent of the moving mechanism.

A further primary object of the invention is to provide means whereby the moving mechanism may enga e an rack and carry it along therewith at tile w' l of the operator.

These and other objects, such as the new and novel combination of the particular elements as will be set forth in the accompanying claims, will become apparent in the following description of the invention, as illustrated in one particular form in the accompanying drawing, in which v Fig. 1, is a fragmentary front elevation of an ovenembodyin our invention; v Fi 2, is a vertical longitudinal section on the line 2'.2 in. Fig. 1; and

\ Fig. 3, a detail in top plan view of the oven rack engaging and releasing means.

Like characters of reference indicate like partsv throughout the several views in the drawing. I

Within the oven 10 are mounted the, two

racks 11 and 12 a) b horizontally slidably carried between the

channel barguides

13, 14 and 15, 16 in the usual and well known manner. In order to vary the spacin between the ra'cks and between the top an bottom of the oven, additional guides 17 18 and 19, 20 are provided to receive the racks. All of these rack guides are spaced inwardly from the side walls of the oven by being supported and secured by their ends to the corner posts of the oven.. v

On each side of the oven, between the rack guides and the side walls, are fixed in parallel relation, the upper track 21 and the lower track 22, each having an opposin U-shaped channel fromwhich a supportingleg extends over and against and secured along the oven side wall. slide 23, consisting essentially of a rectangular shaped frame is slidably carried within the channels of and between the upper and lower tracks 21, 22.

A link 24 has its lower end dropped freely through a slot 25 cut in the horizontal art of theleg extending. from the lower trac 22 at a location a trifle forward of the mid-point thereof. The upper end of the link 24 is pivotally connected to the front member of the slide 23 and a door link 26 has its rear end pivoted to the link 24between the track 22 and the slide 23. The door link 26 passes freely through the corner post 27 and out to the oven door 28 to be pivoted thereto by its forward end, vwhereby,opening of the door 28 will pull the link 26 forwardly to rock the link 24 about its enga ement with the track 22 to in turn pull the sfide 23 forwardly along the ,tracks21, 22, the travel of the slide being multiplied as compared to that, of the link 26 by reason of t e leverage set up through the link 24.

Short channel bars

29, 30, 31, and 32 are fixed to the rear vertical member of the slide 23 to extend respectively over and above each of the rack guides, the legs of the channel bars being turned upwardly, and in each of the bars is loosely positioned a short bar 33 to have its inner end pivoted, to and rockably carried between the lie" of the channel bar whereby the bar 33 wi normall rest horizontally along the channel bar, ut may be rocked upwardly therefrom. The outer free end of the bar 33 has a plate 34 fixed thereto in vertical relation. This plate 34 has a central notch 35 cut in ts lower edge, from either side of which notch, the plate curves or slopes upwardly, Fig. 2.

The oven racks 11 and 12 are formed in the usual manner by weld a number of wires across a rectangular wire frame. To the outermost of each of these welded wires is rockably secured thereunder the release wire 36 in parallel relation thereto. The forward end of the wire 36 has an out-turned end 37 whilethe rear end is in-turned to be adapted to be carried into the path of the plate 34.

' Referring principally to Fig. 2 of the drawing, the upper plate 34 is hereshown as being in its normal position with the rear transverse wire of the rack 11 engaged by the notch of the late. As the door 28 is opened and lowered the door being here shown as ofthe t pe hinged to the oven by its bottom edge), the connecting link 26 rocks the link 24 to pull the slide 23 forwardly to, in turn, through no the plate 34, pull the rack 11 forwardly to 34 whereby the cause it to extend somewhat from the oven. Closing. the door 28 returns the oven rack 11 through the same mechanism. The lower rack 12 is here shown as not being engaged by one of the lower plates 34 and hence remains stationary. By closing the door 28, the rack 12 may be engaged by the plate 34 adjacent thereto as the plate 34 is moved rearwardly to have it lift u over the rear rack transverse member and rop down thereover to have the notch 35 therein engage about the transverse member, the plate being rocked upwardly by reason of its rear inclined edge sliding over the rack member. Either or both racks may be released from the engaging plates 34 by pushing downwardly on the ends 37 of the release wires 'to cause the other ends to push upwardly and lift the plates 34 out of enga ement with the racks. Either or both rac s may also be .released from the plates 34 and pushed back into the oven guld against the rear wall thereof so that the rear transverse members of the racks are carried back of the rear limit of travel of the plates plates can not then en the rack members and the door 28 is then free to be opened and closed without moving the racks. From that innermost position, either or both of the racks may be pulled forwardly slightly to slide the rear members thereof into engagement with the plates 34.-

Simi ar the racks may be released from the plates 34 and pulled out freely from the oven and then returned to,be en aged by the plates 34 by enterin the rac transverse members under the p ates 34 from the forward inclined edges thereof. Each of the plates 34 drop normally by the pull of gravity and remain dro ped until lifted by the oven rack members eing pushed against the cam-like inclined front or rear edges.

While we have here shown and described our;invention in the one best form as now known to us, it is obvious that structural changes may be made therein without departge nel bar extending over t aaeqaee ing from the spirit of the invention and we,

, therefore, do not desire to be limited to that precise form, nor an more than may be required by the following claims.

We claim:

1. In an oven, the combination with a slidable rack and a door, of a slide, connectin linkage betweenthe door and the slide, an a plate 'rockably carried on the slide in the path of said rack, said plate being adapted to rock into engagement with the rack upon travel thereover, the oven being of such length that the rack may be positioned to such a rearward extent that when the slide and plate are in their most rearward position the rack is out of engagement with the late.

2. In an oven, the combination with a slidable rack and an oven door, a plurality of vertically spaced rack guides, a slide positioned between the rack guides and the oven wall, a link (pivoted to the slide and having its free end ropped through a slotted member, a link pivotally interconnectin said link between said slide and the slot member and the said oven door, and a rack engaging plate hinged to said slide to swing u wardly 'adf'acent each of said rack uides, an a rockab e plate release wire on t e rack having an extension laterall under the plate. 7

3. In an oven, the combination with a slidable rack and an oven door, a plurality of vertically spaced rack guides, a slide positioned between the rack ides and the oven wall, a link ivoted to t e slide and having its free end ropped througha slotted member, a second lin pivotally interconnecting said first link between said slide and the slotted member and the said oven door, and a rack. engagin plate hinged to said slide to swing upwa ly adjacent each of said rack es. 4. Inan oven, the combination with a slidable rack and an oven door, a plurali of vertically spaced rack ides having a ane rack guides, a slide positioned between the rack guides and the oven wall, a link pivoted to the slide and having its free end drop ed thrgplgh a slotted member, a second 1i pivo y interconnecting said first link between said slide and.

the slotted member and the said oven door, and a rack engaging plate carried by said slide ad acent sac of said rack guides each of said plates being hingedly suppo in a channel bar extension from the slide to be fre?K to be rocked into engagement with the rac -5. In an oven, the combination with a slidable rack and an oven door, a luralit of vertically spaced rack guides, a s ide bac of the guides, a link ivoted to the slide and having its free end ropped through a slotted member, a second link pivotally interconnecting said first link between said slide and the slotted member and the said oven door, and

a rack enga g plate carried in said slide adjacent eac of said rack gui es, each of said plates being hingedly supported irom the slide to be free to be rocked into engage- 5 ment with the rack, and each of said plates having its under edge centrally notched and inclined upwardly therefrom both forwardly and rearwardly,

6. In an oven, a rack, a plurality of verti- 10 sally spaced rack guides, a slide adjacent said guides, a rockable rack engaging plate carried by the slide at each rack guide, and a plate release wire carried by the rack the oven being of such length that the rack may 35 be positioned to such a rearward extent that when the slide and plate are in their most rearward position the rack is out of engagement with the plate.

7. In an oven, a rack, a plurality of verti- 20 cally spaced rack guides, a slide 3d] acent said ides, a rockable rack engaging late carried by the slide at each rack gui e, a plate release wire carried by the rack, a door on the oven, linkage connecting the slide and the 25 door to effect movement of the slide upon movement of the door, the rearward travel of the slide being limited to permit the rack to remain at will in a rear position out of engagement with said plate. 39 In testimony whereof we aflix our signatures.

MILO G. FORSYTH, BOY LASITER.