US1341829A - Oven - Google Patents

Description

J. W. WHITTINGHILL.

OVEN- APPLICATION FILED AUG-21h I917. REN EWED APR- 17, 1920. 1,341,829. Patented June 1, 1920-.

3 IIIIIA I 22 i A96 INVENTOR. James W Whiflgghill.

JAMES W. WHITTINGHILL, 0F LOS ANGELES, CALIFORNIA.

OVEN.

Specification of Letters Patent.

Patented June 1, 192a.

Application filed August 29, 1917, Serial N0. 188.767. Renewed April 17, 1920. Serial No. 374,778.

To all whom it may concern Be it known that I, JAMES 1V. lVHI'r- TIXGHILL, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have 1nvented anew and useful Oven, of which the following is a specification.

This invention relates to an oven construction for cook stoves, ranges and the like and particularly pertains to the shelf and runway portions thereof.

In bake ovens of domestic cook stoves in which the wallsof the oven are formed with sheet metal fitted with horizontal guideways on which oven shelves are mounted, the shelves frequently bind and are difiicult to move on their guide-ways by reason of the expansion of the metal when the oven is heated, and by reason of warping of the shelves or guide-ways, and which difliculty is especially pronounced when the shelves are heavily loaded.

It is the object of this invention to provide a construction whereby binding 'of the shelves is obviated and their movement easily effected so that the shelf may be readily withdrawn to facilitate the inspection of things being cooked in the oven.

Another object is to provide means whereby the-shelf will be prevented from tipping when partly withdrawn from the oven, so

i that utensils thereon will not be accidentally to the ordinary oven shelf now commonly in use to equip same with roller bearings.

Fig. 3 is a detail sectional elevation as seen on the line 33 of Fig. 2 showing the manner of mounting the vertical supporting rollers.

Fig. 4 is a detail sectional elevation as seen on the. line 4.4: of Fig. 2 showing the manner of mounting the horizontal rollers.

Fig. 5 is a. detail in perspective illustrating the roller carrying plate as forming the end portion of an oven shelf.

In the embodiment of the invention shown in Figs. 1 and 2, I provide an attachment adapted to be applied to oven shelves now generally in use to equip same with roller bearings. and which attachment comprises a roller carrier 7 formed with a top plate 8 and a binding plate 9. The plates 8 and 9 are adapted to be positioned on the lower and upper sides of-a shelf 10 to extend along the edges thereof, as shown in Fig. 1, and secured in place by stove bolts 11 passed through registering perforations 12 in the plates 8 and 9, the bolts passing between the bars of the shelf and clamping the ends of the latter between the plates. The plate 8 is formed with a downwardly'extending end fiange 13 which is formed with out-out portions 14 and 15 at suitable intervals apart through which horizontally disposed rollers 16 and 17 extend, the rollers being carried on pivot pins 18 formed by rivets which engage the plate 8 and position the rollers 16 and 17 close to the under side of the latter. The rollers 16 and 17 are designed to project beyond the edge of the shelf so as to contact the side walls of the oven and prevent the shelf from binding in event it is disposedin an angular position in the oven.

The rollers 17 are arranged contiguous to the rear ends of the plate so as to act on the oven side walls. throughout the entire range of movement of the shelf. The rollers 16 cooperatingwith the rollers 17 are spaced from the front end of the plate so as to contact the oven walls when the shelf is partly withdrawn.

Mounted on the flange 13 to extend therebeneath is a series of rollers 19, 20 and 21 arranged with the rollers 19 and 21 adjacent to and forward of the rollers 16 and 17. These rollers are carried on pivot pins formed by rivets 22 mounted on the flange 13 as shown in Fig. 3, and are adapted to traverse horizontal flanges or guide-ways 23 mounted on the side walls 24 of an oven, and form a roller support for the oven shelf.

The rear end of the plate 8 is turned downwardly to form a flange 25 having a cut-away portion or slot forming a finger 26 adapted to project beneath the flange 23 to engage the latter and prevent tipping of the shelf when it is partly withdrawn from the oven.

In the form of the inventionshown in Fig. 5 the plate 8 forms the end rail of the oven shelf; the bars 10 bein ,permanently factured and sold as equipped with rollers,

even when heavily loaded.

whereas the form shown in Figs. 1 and 2 constitutes an article "of manufacture in itself adapted to be sold to and applied b persons having stoves not equipped with non-binding shelves.

- The operation of the invention is appar; ent from the foregoing, it being readily seen that by supporting the shelfgon the side rollers and fitting it with the end rollers .and the track engaging fingers, the shelf may be easily moved in and out of the'oven While I have s ecificaliy-illustrahed and described the pre erred embodiments of my invention,it is manifest that various changes may be made in details of construction without departing from the spirit and scope of the appended claims.

1. Ina bake oven construction, the com-' bination of oven side walls, horizontal guide guide flanges.

.ings therein, horizontal rollers pivoted diflan es thereon, a shelf, end rails on said I shel comprising, a top-plate, a downwardly 3.0

extending longitudinal side flange on the outer edge of said top-plate having openmgs therein, horizontal rollers. pivoted directly on said top-plate projecting through the openings in said side flange adapted to contact the. oven side walls, and vertical rollers mounted on and projecting below the side flanges and adapted to 'travel' on the 2. In a bake oven construction, the combination of oven side walls, horizontal guide flangds thereon, a shelf, end rails on said i shelf comprising a top plate, a downwardly extending longitudinal side flange on the outer edge of the top plate having Openrectly on the under side of the top plate projecting through the openings in said side flange and adapted to contact the oven side walls, vertical rollers pivoted directly on the inside of the side flanges and adapted to travel on the guide flanges, and fingers on the rear ends of the side rails projecting beneaththe guide. flanges, substantially as described.

JAMES W. WHITTINGHILL.

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