US91076A - George s - Google Patents

Description

e. s. BOSWORTH.

Cooking Stove.- 4

Patented June 8,1869.-

W/TIYEJJE'S dained slam GEORGE S. BOSWORTH, OF TROY, NEW YORK.

Letters Patent No. 91,076, dated June 8, 1869.

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The schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, Gnonen S. Boswon'rrr, of Troy, in the county of Rensselaer, and State of New York, have invented certain new and useful Improvements in Cooking-Stoves; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawings of the same, making specification, and in which- Figure 1 represents a-view in perspective of a stove embracing my improvements;

Figure 2 represents a vertical longitudinal section of the same; and V Figure 3-represents a horizontal section of the firebox, showing the chamber which surrounds it.

In the accompanying drawings the stove is represented as being'constructed with the ordinary rectangular oven, A, and a front elevated fire-box or chamber, B.

The oven is provided, at its top,.with the usual l1ot-air:chamber, G; and the fire-box or chamber B is surrounded by an air-heating chamber, E, extendingfrom the top plate-of the. stove to beneath the grate Fr I am aware that an air-heating chamber surrounding the fire-box is not new, and that a diving-flue has been arranged between the front plate of the stove and the front side of the fire-box, communicating with the ash-pit or chamber directly under the grate; but in such an arrangement of a front diving-flue, the air is only moderately heated, for it is notpassed in contact with the ends and rear side of the fire-box; neither is it conducted around'to the rear-side of the grate, ad-' jacent tothe'oven,

The air-heating chamber E, which surrounds the grate, is provided with a discharge-opening, E, lo-

cated between the front plate, G, and the rear, side,

H, of the fire-box, and directly beneath the grate, as

shown in fig. 2 of the drawings.

The discharge-openiugof this chamber extends the whole length of the grate, while the receivingopenings I are located infront of the stove, and provided with a damper, J by which the admission of air may be regulated'or entirely out 01f.

The air-heating chamber E, thus arranged, has a front receiving and a rear discharging-opening. The air, therefore, must pass in contact with the four sides of the tire-box, and through the four sides of the chamber 1E, before it is discharged beneath the grate, thereby heating the front ovenrplate from top to bottom, and supplying highly-heated air directly beneath the grate.

The rear discharging-branch of this air-heating chamber communicates with the horizontal flue O, at the top of the oven.

part of this The ash-pan L fits closely into the ash-pit, so that when it is closed, the cold air is entirely excluded from beneath the grate.

The only draught, therefore, beneath the grate, is furnished through the air-heating chamber, and is received through the dampered openings I, at the front of the stove. 1

I have found, by experience, that the discharge of highly-heated air beneath the grate serves much better, in promoting both combustion and the draught, than the introduction of cold air directly in front, through the ash-pit, or directly and entirely from the front above the grate.

' While the chamber E, however, thus furnishes the draught beneath the grate, it also furnishes air direc-tly into the chamber of combustion, through a seriesof perforations, a, in the upper ridge of the chamber,-extending entirely around the fire-box.

' These perforations, however, are not, of themselves, new; but when used iu-connectionwith a chamber, having a discharge-opeuingE, beneath the grate, they are,'to"this extent, new, for the purpose of dividing the draught alike above and bcneaththe grate.

Moreover, a very important advantage is gained in the division of the only and direct draught, in making that through the perforations above the grate secondary, as to the quantity of air discharged, to the -main draught, beneath the grate, for the latter requires more' than the former, and the flue, therefore, which supplies the grate with air, extends the whole" width of the stove, and empties directly beneath the grate, thereby reversing the practice heretofore, of supplying the grate entirely and directly from the front of the stove. 1C

The top and bottom fiues, O D, of the oven, communicate with the front and rear flues, E and M, thereof, and the top "draught-flue, N, and the bottom draught-flue, P, communicate with the rear flue,Q, leading to the stove-pipe in the rear.

The top oven-plate may be provided with openings, It, for the purpose of equalizing the heat of the oven; and the stove may be fittedwith the usual damper, S, at. the smoke-pipe, to divert the draught in rear and beneath the oven, through the rear and bottomfiues, M, D, P, andQ when required.

In all other respects, the stove maybe constructed and finished inthe mostimproved manner.

The arrows indicate the direction of ,the draught through the chambers and, the several flues of the stove.

Having thus described my improvement,

I claim 1. The diving-flue E of the air-heating chamber, having its receiving-opening I in front, and. its discharge-opening E beneath the rear side of the grate, and communicating with the ash-pit, substantially as described.

2. The air-heating chamber E, having perforations a above the chamber B of combustion, and a discharge-opening, E, of greater discharging-area, beneath the grate, substantially as described.

3. The air-heating chamber E, communicating with the chambers above and beneath the grate, and with the hot-air flue 0, above the oven, in the manner herein described.

4. The air-heating chamber E, havinga front receiving-opening, I, above the grate, and a rear discharging-opening, E, beneath the grate,in combination with the single damper, J, for regulating the admission of air above and beneath the grate, as described.

GEORGE S. BOSWORTH.

Witnesses:

JAMES E. BRIGGS, Ansmm F. PARK.

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