US80751A - washihoton - Google Patents

Description

stent time. QJ) 'D y Lam Patent No. 80,751, managen 4, 186s.

' IMPROVEMENT In .sTovn-ovnns.

dite tlgnuh maar tu im tten @niet tant mit mating niet nf the tame.

To ALL WHOM 1r MAY concerns:

' Be it known that I, M. W. LONG, of Bangor, in the county of Penobscot, and State of Maine, have invented a new and useful Improvement in Stove-Ovens; and I do. hereby declare that the following is a. full, clear, and exact description of the constructionv and operation of the saule, reference being had'to the accompanying draw'- ings, making a part of this specification, in whichi i I Figure 1 is a top or plan view, and a Figure 21's a side' elevation, with* a part of the door of the oven and side walls'.v of the liuc broken away, u 'to show the interior arrangement.'

-The nature of my invention consists in forming the bottom or floor of stove-ovens with a circular opening, in which is tted a disk bearing upon ledges, this disk being arranged to revolve for the purpose of changing the position o'f articles being cooked in the oven; also, in a circular line of small cogs formed upon or attached tothe under side of thedisk, this rack or circle, of cogs fitting into a pinion upon a. shaft extending from the outside into the flue under the oven, and havinga crank attached to the outer end for the purpose of actuating the pinion and thereby rotating the disk; and also in a grate, which is rotated with the disk, and which is formed r with suitable pivots or points upon the under side, which points fit into recesses in the revolving disk, and allow A the grate to bear upon it when desired, andwhen it is desired to raise the grate, it is revolved relatively to the disk, when the points travel up inclined planes formed in the disk, and thereby raise the grate.v

Similar letters of reference indicate corresponding parts in the several gures.

To enable others skilled in the art to inake and use my invention, Iwill proceed to describe its construction and operation.

In the drawings, A represents the bottom or floor of the oven, and a is the oircular disk, which is fitted into the oor, and bears upon ledges, as is plainly shown in fig. 2.

d is the rack or circular line of cogs, which are formed upon the under side of"disk a.

c is the pinion, which meshes into rack b. This pinion is secured upon shaft m,'ns is also crank d, by which the pinion is rotated. n The shaft fm passes through the side of the stove, so that the crank is outside while the. pinion is inside, the flue B, which is the heated-air passage beneath the oven, lbeing enclosed by the door A, bottom C, andthe usual side and end walls.A

fis the grate, which is about the size of disk a; and which is here shown formed with aV circular rim and parallel bars across it. Upon theunder side oi' this grate are formedvprojections or pins at suitable distances around the rim, as shown at c /cnaud also, if desired, near the centre. These points ft intorece'ssesoi' suitable depth in the disk, these recesses being formed upon a curv'e corresponding to that described by the points when the grate is rotated, andbeing also formed vertical at one end, with an ascending incline to the surface as shown at z'. i l

Thisgrate and the disk a may be so arranged that the top of the grate, when lowered, will be flush with the top of the floor ofthe oven, or the grate may rise its thickness, as shown.

By thus having the grate adjustable, if the heat be too great, then, by slightly revolving the grate so that the pins'k travel up the inclines in the disk, the grate is raised so as to allow van airspassageV beneath' it, and the e'ect of -tho heat is diminished. I

The removable handle I, which fits into seats in the grate, furnishes a ready lmeans of rotating it. By forming tbe oven-floor with a revolving disk, it furnishes a ready means oi cleansing the lower dues, and not only can thorpositions of the various dishes be changed relatively to the fire-box, but it' only one dish be cooking, it may be readily rotated so as to present either sido to the greatest heat, and this is accomplished without disturbance loi' the dishes which are being cooked, and without the labor and trouble usually attendant upon such operation.` Y v The disk a may be rotated by a great variety of means, and it may be arranged to move either upon friction-rollers o r other bearings, if necessary, in any case, and shaft m may pass through the stove,- and be provided with a crank at each end, so that the disk may be revolved-from either side of the stove.

g is s centre pivot formed upon the grate, and which passes down through the disk, holding the grate in position. This pivot may be provided with s screw-nut, or its equivalent, sfording the means of raising the disk wh'en necessary. r

Hoving thus described my invention, what I claini as new, and desire to secure by Letters Patent, 1s

1l The gratef, when constructed and operated substsntieily in the manner specified.`

2. In combination with the gratef, the disk a, fitted to revolve in the manner and for the purpose substantially as shown and described.

3. The device for raising the grate, z' in the disk, whereby the grate is raised as and for the purposes specified. s

. M. W. LQNG,

consisting of pins k, upor` the under side of the grate, and the inclines or lowered st wil'i, by'revolving it 'relatively to the disk, substantisily Witnesses:

H. D. MITCHELL, Joins L. ROBINSON.

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