US4585A - Cooking-stove - Google Patents

Description

2 Sheets-Sheet I,

W. COBB.

Cooking Stove.

u, PETERS. Phmmuhognpher. Waslvinglon, u. c

Patehted- June 16, 1846.

2 Sheets.-Sheet 2. W.- COBB.

Cooking Stove. Q

No. 4,585. Patented June 16, I846...

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5 Sec Zzqru TED STATES PATENT OFFICE.

v WILLIAlVI COBB, OF ALBANY, NEW YORK.

COOKING-STOVE.

Specification of Letters Patent No. 4,585, dated June 16, 1846; Antedated January 16, 1846.

To all whom it may concern:

Be it known that I, WILLIAM Coma, of Albany, in the county of Albany and State of New York, have invented a new and useful Improvement in Double-Oven Stoves; and I do hereby declare that the following is. a full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 represents a double oven stove in perspective, Fig. 2, a front elevation of the same, the front plate of the stove and the back of the fire chamber being supposed to be removed, in order to show horizontal flues, dampers, &c. Fig. 3 is a vertical longitudinal section, and Fig. 4 a view of the bottom plate with the division strips forming the fiues beneath the oven.

The same letters refer to the same parts in all the figures.

a is the upper oven with a larger one 6 situated immediately below it.

0 is the fire chamber on a level with the upper oven.

(Z is the grate.

e e is a diving fiue descending at the back of the fire box and extending downward so as to communicate with the fiues beneath the lower oven but having also communication with the fiues f f between this latter and the upper oven at 9;.

The rear of the flue f f has an opening it communicating with the middle fiue at the back of the stove, leading to the smoke pipe; which opening may be wholly or partially closed by the sliding damper z'. The upper and middle fines j j and f f extend the whole breadth of the stove, without partition or division. The space between the bottom plate of the oven and the bot-tom of the stove, may be considered as divided into three fiues 7e is, Z Z, and m m, the center one at m being subdivided into two by the dia phragm or dividing plate n n which extends upward in the rear, no farther than the top of the lower oven, as shown at 0 0 Fig. 3. The object of this diaphragm is merely to more fully equalize the heat upon the lower oven. At pin the upper flue j j is a damper serving to cut olf the direct com -munication from the fire box to the smoke pipe, as well as to the side fiues Z; and Z Z. While the damper p is yet open, the communication with the smoke pipe may still be cut off by the curved, vertical sliding damper 9 (Figs. 3 and 4) being brought to the position indicated by the dotted line in Fig. 4. The top of the front diving fiue oven. The two ends of this lever '0 and w,

work respectively, in slots in the movable plate of the registers or sliding dampers r 1" and s s. It will be readily seen that when the damper r r is drawn open, 5 s will be shut, and vice versa.

The operation is as follows. The fire being kindled in the fire box, and the dampers 29 and q being opened and '1" 1" shut, the products of combustion pass directly through the upper fiue j j to the smoke pipe. When it is required to throw the heated current beneath the upper oven only, either one or both the dampers p and g are closed and r r, and 2' opened. The current then passes down 6 e to g thence through the middle fiue f to, and up the rear flue y to the smoke pipe. Then in this last case the damper r 1" is opened, it is evident that by the action of the lever 27 t, (as before described) s s will be shut, and the current thus be prevented from passing beneath the lower Another similar damper s s is placed oven. When the lower oven is to be heated,

the damper r 1 is closed, and s s consequently opened. The damper q is also closed and 2' opened. The current then descends the two outer fiues x m at the rear of the stove and after passing beneath the lower oven, ascends through 6 6 into f f and thence by the middle rear fine 3 to the smoke pipe.

\Vhat I claim as my invention and desire to secure by Letters Patent is,

The connecting the upper and lower dampers r r and s s by a lever 25 t in such a manner that when one damper is opened, the

other will be shut, in combination with two

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