US3626A - Calvin fulton - Google Patents

Description

UNITED sTATEs PATENT oEEroE.

CALVIN FULTON, OF ROCHESTER, NEW YORK.

COOKING-STOVE.

Specification of Letters Patent No. 3,626, dated Tune 10, 1844.

T0 all LU/zona t may concern Be it known that I, CALVIN FULTON, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Cooking- Stoves; and I do hereby declare that the following' is a full and exact description thereof.

In the accompanying drawing Figure 1, is a perspective view of my stove, the top plat-e which is to receive the boilers, and the doors likewise being removed for' the purpose of showing the interior. The top plate is shown separately in Fig. 3. Fig. 2 is a section through the middle of the stove from front to back.

A, is the fire chamber, and B, the oven; between these two compartments I place three distinct and separate plates, forming two air spaces between them; these plates are marked a, b, and c, in the drawing. At the lower part of the plate c, which constitutes the direct lire back, there is a curved plate (Z, furnished with catches that hook into the lower edge of c, and that may be lifted outat pleasure; this curved plate constitutes the lower part of the fire back, a large part of the ignited coals resting against it. By dividing the fire back in this manner its tendency to warp and burn out is much diminished. It is also further protected by the free admission of cool air between the fire-back and the plate ZJ; for this purpose an opening is made through the botto-1n plate of the sto-ve as at e, Fig. 2; it-s place is also shown by dottedlines on the plate d, Fig. 1; there are also holes opening into the same space throughl each of the side plates, as shown at f, f, Fig. l, thus establishing a free current of air. The space between the plates and o, communicates with the flue space below the oven, so thatthe heated air in this flue space passes freely into it, and preserves a regular moderated heat in this part, an effect which could not be thus produced without the aid of the` three plates.

Immediately over the fire chamber, and on a level, or nearly so, with the top plate D, of the oven, I place a sliding shutter C, which rests upon ledges, and incloses about one half of the space occupied by the upper part of the fire chamber; this shutter may be slid back and `forth by means of a rod, so

i that it may occupy the middle space when two boilers are to be acted upon; or by closing one half of the opening at one end of the fire chamber,` the whole draft will be made to act against the bottom of a single kettle, or boiler, thus rendering a small iire eiective when one vessel only is to be used. I sometimes divide the iiue space above the oven into two parts by a partition plate along its middle, from front to back, and thereby confine the heat, in great part, to one side of this space; but this is not essentia The rear flue is divided into three sections, by two partitions which are extended along toward the front, in the lower flue, as shown at E; and there is a valve at F, by which the draft may be directed through these iiues, or be allowed to pass immediately into the exit pipe. This arrangement is in all respects similar to that made in several other stoves.

For the purpose of giving a permanent support to the drop doors of the oven, I eX- ten-d the lap, or hearth G, of my stove back, so as to reach the fore edge of the oven door, and when said doo-r is ope-ned, so as to stand horizontally, it rests on the part G', of said lap, and the strain upon its hinge joints is thereby effectually taken ofi.

I give free admittance to the flue space under the oven, through an opening below or stopper g, that may be lifted out at pleasure; and as the plate CZ, may be readily unhooked from the plate a, the shutter g, may easily be removed, and the :iiue space cleaned. This, however, will be .rarely required, as it is advantageous to allow the bottom plate to be covered to so-me height with a bad conducting substance.

Having thus fully described the manner in which I construct my cooking stove, what I claim as new and desire to secure by Letters Patent, is-

l. The `employment of three plates between the fire chamber andthe oven; the foremost of these plates being divided into two parts as shown at a, andcl, these parts being connected together, and combined with the plates and c, and with the body of the stove, as set forth.

2. I claim, also, the manner of supporting the drop doors of the ovens by extending the lap, or hearth, back to them, as described.

oALvIN FULTON. (L. s]

Witnesses:

Tiros. P. JONES, v

EDWIN L, BRUNDAGE.

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