US329069A - Heating-stove - Google Patents

Description

(No Model.)

J. B. OLDERSHAW.

- HEATING STOVE. No. 329,069. I Patented Oct. 2'7, 1885.

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UNITED STATES Prion.

PATENT HEATING-STOVE.

SPECIFICATION forming part of Letters Patent No. 329,069, dated October 27, 1885.

Application filed April 18, 1885. Serial No. 162,687. (No model.)

To aZZ whom it may concern:

Be it known that I, J OHN B. OLDERSHAW, of Baltimore city, Maryland, have invented certain new and useful Improvements in Heat ing-Stoves, of which the following is a specification, reference being had to'the accompanying drawings, forming part hereof, in which- Figure l is a view, partly in section and partly in side elevation, of a stove embodying my improvements in its construction. Fig. 2 is a detail view showing in plan View the diaphragm or partition-plate which forms the top of the main firebox, and which supports the upper portions of the stove and Fig. 3 is a view of the under side of the casting which rests upon the casting shown in Fig. 2, and forms the lower ends of the air ducts or flue.

Like letters mark the same parts in all the figures.

I shall first fully describe my invention, and afterward specifically point out the novelty thereof in the claims appended to this specification. I

Referring to the drawings by letter, A is the base of an ordinary cylinder coal-stove, and is or may be of any desirable well-known pattern or construction.

B is the cylinder or firebox, provided, as is usual, with a door, a.

On the top of the fire-box rests a casting, 0, provided with a series of openings, 0 c c a, and alarger opening, 0, thelatter being formed in a rearward-projecting portion of the cast ing. I There is also a large central opening, 0''.

D is a casting, which rests on the casting O, and with it forms the lower ends or openings for the air-duct hereinafter mentioned;

This casting has a central opening, ri to cor respond with the central opening, a, in casting 0, and has a rear portion, cl, to rest directly over the opening 0 in casting C.

At the rear of the fire-box isa fine or conduit, E, open at its bottom to receive air, and leading to and through the opening 0.

The casting 0 forms a base upon which the whole of the upper portion of the stove rests. This upper portion consists of three concentric cylinders, F G H, forming spaces F, G, and H. The spaces F and H communicate near the top by means of flue f, and are smoke flues or chambers. The space G is an air-coir duit, and lies between the spaces F and H. The lower end of this air-chamber is formed by the portions 01 and d of casting D, and is open to receive air to be carried up, heated, and'delivered' through openings 9 in the top I of the stove, or it may be distributed by fiues or pipes to an upper apartment.

J is a damper, shown in dotted lines in Fig. 2, by means of which the openings 0 in casting C may be opened or closed at will. When they are open, the products of combustion will pass through them and the chamber H, and thence out of the stove-pipe K. When they are closed, such products will pass up through the central openings, 0 d, in castings G and D; thence through chamber F, flue f, and chamber H to the stove-pipe, to pass out.

The advantages of my improved construction will be apparent, and need little mention. The heating capacity is greatly increased, for the reason that the whole exterior of the stove is in contact with the fire or the products of combustion, and the airchamber wholly surrounded thereby. A removable cover, L, or a culinary utensil may cover the central combus tion-chamber, F.

The improvements may also be applied to furnaces.

I claim as new and desire to secure by Letters Patent 1. In combination, the fire-box, the inner and outer cylinders communicating therewith,

the middle cylinder communicating with the outer air, the removable cover on the inner cylinder, and the damper at the bottom of the outer cylinder, as set forth.

2. In combination,the firebox, and the three concentric cylinders above the fire-box, the inner and outer ones of which have communication with the fire-box and the middle one with the outer air, the outer and inner ones being connected near the top by a flue, the inner having a removable cover and the outer a damper at the bottom, as set forth.

In testimony that I claim the foregoing I have signed my name hereto in the presence of two subscribing witnesses.

JOHN B. OLDERSHAVV.

\Vitnesses:

WM. AMMER, J OHN OLDERSHAW.

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