US89903A - Thomas b - Google Patents

Description

T. B. WALKER.

Cooking Stove.

, Patented May 11, 1869. I

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With, ess es: $146 I nv data r:

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To all persons to whom ake preseitts may come.-

s r te THOMAS BQWAnKERQOF; WAKEFIELD, MASSACHUSETTS.

" LettersPqteatNo. 89,903,11ated Ma y 1 1,1sc9. l l

cooxinessrove.

The Schedule referred td in these Letters Iatent and ma ldngpart of the same.

Be it known that I, THOMAS B. WALKER, of Wakefield, in the county of Middlesex, and State of Massachusetts, have. invented anew and useful Improvement in Cooking-Stoves; and I do hereby declare the same to. be fully described in the following specification, and represented in. the accompanying drawings, of which- Y Figure 1 is; a longitudinal section of a stove provided with my invention.

Figure 2 is a transverse section of it taken through the oven.

I Figure 3is a horizon tal section taken through the fire-place. i

Figure 4 is a horizontal section taken through the return smoke-flues underneath the oven.

In such drawings+ A denotes the fire-place, or chamber; f

B, the ash-chamber;v I

O, the grate; and

D, the oven.

The fire-place is surrounded by an air-heating space,

or chamber, E, provided with one or more air-inlets,

a, at its front.

From the upper part of thesaid air-heating chamher, an air-flue, F, "extends over the entire top, I), of the oven, and between the same and the flue G, which leadsfrom'the fire-place overthe. oven, and conveys I the smoke and volatile products of I combustion into flues a: a: 3/, arranged in rear of the back and'against the bottom'of the oven, as in most cooking-stoves.

The hot-air flue F opens intoanother such flue,-H,

arranged against the back of .the oven, and between such and the back smoke-flue or flues thereof, and

there are one or more air-openings, 0, leading from the lower part of such flue H directly into the oven.

, "Furthermore, through the lower part of the front plate (1 of the oven, there are one or more air-inlets,e, which open into an auxiliary air-flue, I, which ruhs up against the plated, and at top opensinto the ashchamber, and directly below the grate. I There is a damper, K, in theentrance of the upper aireflueF.

Another damper, L, is disposed in the" lower part of the air-heating chamber E, and so as to cover or uncover one or more op'enings, f, leading from the lower. part of such chamber :E into the oven, or into a chambered shelf, M, arranged within the oven, and

so as to slide endwise into andout of it on ledges shown at g g. r r c v This shelf is hollow, or formed with a chamber, h,

extending through it from front .to're'ar, andat the rear of such chamber there are one or more openings,

5, leading from the chamber into the air-flue at the back of the oven.

In the operation of this sto've, the air which enters .the chamber E, after having become heated by the heat radiatedfrom the sides of the fire-place, will pass through the flues Fahd-H, thence through the open- I ing 0 into the oven D, thence through the oven, thence throughthe exit-opening 0 into the flue I, and next through such fine and up through the grate, and into the fuel when thereon.

By moving the damper L so as to uncover the opening f, the hot'air may be caused to pass through the.

hollow shelf M before going into the ash-chamber, and up through the grate. I

In itspassage through the flues F and H, 'the air will be still further heated by contact with the top and back smoke-flues ofthe oven, and in this state will pass throughthe oven, and not only venti-.

late I it, or carry off the waste steam and gases produced during the process of baking in such oven, but,

charged therewith, will next flow into the conduit I,

and thence into the fuel, and operate to facilitate-the combustion thereof.

When made to flow through the shelf M, the hot air will operate to heat-both the top and bottom-plates of such shelf, so as to facilitate the process of baking of articles which may be in both parts of the oven which are ,overandbeneath the said shelf.

'With the air-flues and chamber'applied to the fireplace and oven, and the smoke-flues of the latter, in manner as explained, heat from the-sides of the fireplace may be economized by currents of air, and employed to advantage in heating the oven, andin improving the combustion of the fuel in the fire-place.

I claim the combination of thechotvair fluesE, H, and I, and the openings 0 ethereof, with the aiigheating chamber E, the fire-place A, the oven D, and the smoke-flues over the top, in rear, and underneath the oven, the whole beingjas set forth. i

, I also claim the combination of thechamber h,(in

the shelf M,) and its openings i f, the fire-place A, the chamber E, with the oven D and the air and smoke-passages, arranged about the same, inmanner as described. 7

I also claim the arrangement of the air-flues F, H, and I, and the openings 0 c with the oven, in manner as set forth, when such flues are employed with a fireplace andanair-heating chamber about the same,- and with smoke-flues, as specified. j

I also claim the arrangement of the shelf-chamber h,and its openings'i f, with the oven D, and the air and smoke-flues, about the same, and combined with a fire-place and air-heating chamber, as set forth.

f THOMAS B. WALKER.

Witnesses:

R. H. EDDY, J. R. Snow.

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