US24634A - Stove - Google Patents

Description

UNITED STATES PATENT OFFICE.

JOHN HENDERSON, OF llORsEHEADS NEw YORK.

Specification of Letters Patent No. 24,634, dated July 5, 1859.

To all whom it may concern:

Be it known that I, JOHN HENDERSON, of Horseheads, in the county of Chemung and State of New York, have invented a new and Improved Mode of Constructing Cooking-Stoves; and I do hereby declare that the following is a full, clear, and exact descrip tion of the construction and operation of the same, reference being had to the accompanying drawings, making part of this specification, and to the letters of reference marked thereon.

The nature of my invention consists in an arrangement of the fines for the more equal distribution and better regulation of the heat, and ventilation of the oven, and also of constructing it in two parts which are capable of forming a stove of difierent form and convenience by a slight change of position.

Figure 1 represents a vertical section of my stove and Fig. 2, is an elevation of the back of the oven, and Fig. 3, of the front of the same, with the fire part removed.

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

A is the fire-chamber, B the ash-box, C the oven. There are four passages from the fire-chamber to the fines surrounding the oven, D D, Figs. 1 and 3. The space in front of the oven between the lining and the front-plate is divided into three portions by partitions which start horizontally from each side, directly over the fire passages D D, but on passing them are carried upward to the top of the oven. These partitions are shown through the front plate Fig. 3, by the red dotted lines a a.

Z), is a damper which lies across the cen tral flue, which is operated by the rod 0.

The space between the oven and the back plate is divided by two vertical partitions (Z cl, Fig. 2, into three divisions or flues. These partitions terminate at the middle or thereabout of the bottom of the oven, at c Fig. l.

The operation of the lines is as follows: The products of combustion enter from the passages D D and ascend the fines E E, Fig. 3, and unite at the top of the oven. A

of the oven, until it reaches the bottom where it unites with that from the lower passages D D when the whole returns up the central column G, and finds egress at the pipe H. The black arrows indicate the direction of the draft, and the dotted ones the returning or ascending column which escapes through the pipe. Thus the heat is very uniformly and effectually imparted to the oven, effecting a very important economy in fuel. By closing the damper b, in the fine I the heat of the oven will be moderated by driving all that from the upper passages D D, through the flues F F. When the oven is not in use the damper f is thrown down as shown in dotted lines closing the flue G, and by opening the damper b, the heat all passes over the top of the oven and directly escapes through the pipe.

Dampers are provided which close the lower fire-passages D D, consequently no heat escapes under the oven.

My stove is constructed in two distinct parts, one containing the fire-chamber and ash-box, and the other the oven and fines. A space of two or three inches in depth intervenes between the two parts, which forms a heating chamber, being directly in contact with the fire back. It occupies all the space bounded by the lines 9 g g and the fire-passages D D Fig. 3. The bottom plate of this chamber shown, detached in plan at J Fig. 1., is perforated with holes which admit external air, which, becoming heated, is admitted through holes h 71. into the airpassage 2', which carries it to the top of the oven where it enters through a series of holes in the lining at y'. The ventilation of the oven is perfected by carrying off the vapor and gases through apertures at 70 by means of concealed flues in the partitions (7 (I, which terminate in the top of those partitions in close connection with the smokepipe, so that a strong draft is always produced. These concealed ventilating fines are made by constructing the partitions d d, bifurcated, as shown by the cross-section, Fig. 4. The parts Z Z, fit closely against the oven lining and thus form a passage m which excludes dust and smoke from entering the oven. The air passage is formed by the partition it immediately above the fire passage D, and the serpentine partition 0 starting underneath the upper passage D. The red arrows show the air as entering the heating chamber K, and its course through V Fig. 1.

the oven and ventilating flues until it finds egress at the smoke-pipe.

In the form described and represented in Fig. l, I call my stove the President. By a slight rotation of its parts, it becomes the Reverse President, capable of fulfilling a new office in the domestic department and admirably adapting it to the require ments of the time. This object is effected by reversing the part containing the oven, placing the back plate L in conjunction with the fire-part, by which the smoke-pipe is brought forward of the oven in a position about the middle of the stove as seen at By this means the stove may be used, when not required for baking, by passing the heat directly from the fire up the pipe, thereby preventing the waste of heat and fuel when the requirements in cooking are limited. To produce this change the back plate is cast with holes like those in the front plate corresponding to the fire passages D I) (the pattern is so constructed, but the holes are closed up in molding for the back plate of the President, which is plain) and the front plate is cast with the holes D D filled up. r

The serpentine partition 0 occupies the position shown by dotted lines 0 forming with the partition n the air passage to the oven, the air being admitted in and out on the same side of the oven. In other respects the operation of the fines is the same when the oven is in use.

The two principal parts of the stove are united by means of flanges that lockrtogether and are secured by keys. A flange at the top of the upper fire passage 79 Fig.

1, takes the front plate, while a hooked flange is turned on the edge of the bottom plate at 1" (shown enlarged at Fig. 5) receives a'key or locking wedges, which effectually secures the parts together without the use of bolts or screws. A flange g g on the front plate covers the joint.

What I claim as my invention and desire to secure by Letters Patent is:

l. The combination and arrangement of the fire passages D and D, with the lines E E and I, damper b back flues F F and G, with their dividing partitions terminating at 0', whereby the products of combustion are conveyed from the'fire box around the oven in both directions, commingling underneath it, for economizing the heat, and diffusing it equally, substantially in the manner and for the purpose set forth.

2. I do not claimthe use of a heating chamber intervening between the oven and fire-box, nor the admission of external air within the oven, but I claim the construction and arrangement of the ventilating passages, z' i, and concealed flues, m m, the

former having their origin in the heating chamber K, and terminating at or near the top of the oven, and the latter starting from the lower part thereof, and terminating in the flue G, whereby external 'air is admitted and currents thereof passed through the oven substantially as and for the purposes specified.

JOHN HENDERSON.

Witnesses:

J. FRASER, A. E. FRASER.

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