US21731A - Hot-air cook-stove - Google Patents

Description

J. M. BABCOCK.

Cook Stove.

Patented Oct 12, 1858;

N. vzmzs. Plwloinlhagnphcr. Washmghzm o, c.

UNITED STATES PATENT OFFICE.

JOSEPH M. BABGOCK, OF ALBANY, NEW YORK.

HOT-AIR COOK-STOVE.

Specification of Letters Patent No. 21,731, dated October 12, 1858.

To all whom it may concern.

Be it known that I, JOSEPH M. BABoooK, of Albany, in the county of Albany and State of New York, have invented certain new and useful Improvements in Hot-Air Cook-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 and to the letters of reference marked thereon.

The nature of my invention consists in the arrangement of the perforated side plates, the double bottom, and the elevated oven when the same are constructed as will be hereinafter described.

In order that those skilled in the art may use and make my invention I will proceed to describe its operation and construction.

In the annexed drawings Figure 1 is a plan view without the oven. Fig. 2 is a side elevation. Fig. 3 is a longitudinal section.

The construction of this stove differs materially from that of others for the same purpose in three respects: 1st, in the construction of the outer side platesthese are represented in the drawings by A, A; they are perforated as will be seen near the top with small holes for the admission of cold air. 2nd, it differs in the construction of the top. C, and (Z, represent the two plates which form said top. Q is the outer, and cl, the inner plate, these plates are separated from each other so that a channel or flue will be formed between them for heated air. 3rd, the oven being constructed in the shape shown, covers an aperture on the top of the stove, sitting between the two rims, or flanges, 2', 2'. This oven is made double eX- cept at the ends, and the hot air which arises from the double top passes around the oven as shown by the black arrows and passes into the smoke pipe. The flue around the oven is stopped by a plate on the back side near its exit, in order that the air may be made to pass around at all times in one direction. This stove is provided with two side plates as will be seen at A, and A, the inner plate being solid.

hen fire is placed in this stove the products of combustion pass in the direction shown by the red arrows directly back and up the smoke pipe. As the stove becomes heated the air between the two top plates and the two side plates becomes rarefied, and begins to pass in the direction of the black arrows, the cold air at the same time rushes in through the small apertures (11., n, m, m,) and passing between the heated plates, becomes itself heated and rarefied, and passes around the oven and out at pipe 6, which connects the flue around the oven with the smoke pipe. It is very evident that so long as the fire keeps the top and side plates heated the cold air coming in will con tinue to be heated and pass around the oven, thus heating it. As the hot air chamber communicates only with the external air, and not with the fire, it can never be filled with soot and cinders, but will always remain clean. The oven may at any time be removed and if nothing covers the aperture in the top over which it sits the hot air will be discharged into the room.

I am aware that perforated side plates are not new, and also that elevated ovens are not new, and also that double top plates have been used with apertures communicating with the fire. I am also aware that hot air has been used and passed around the oven by Silas T. Savage for the purpose of cooking. Hence I do not claim any of these in this application, nor the form and construction of the oven, but

I do claim- The combination of the double top, the perforated side plates, and the elevated oven, the same being arranged and operated in the manner and for the purpose herein specified.

JOSEPH M. BABCOGK. Witnesses:

SAMUEL BAKER, THOS. ROBINSON.

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