USRE944E - Improvement in coal-stoves - Google Patents

Description

H. STANLEY.

Heating Stove.

' Reisshed A-nril 10, 1860.

UNITED STATES PATENT OFFICE.

CHARLES EDDY AND JACOB SHAVOR, OF TROY, ASSIGNEE OF HENRY STANLEY, OF ALBANY, NET V YORK.

IM PROVEMENT IN COAL-STOVES.

Specification forming part of Letters Patent No. 3,876, dated January 4, 1845 Reissue No. 944, dated April 10, 1860.

ash-pit and drawer or ash-pan D; Fig. 6,

horizontal section showing the conical grated at the top of the [ire-chamber, the view being taken from below looking up .into the upper section.

The improvements consist in the construction and combination of the several parts, consistin g of a chamber of combustion, surmounting chamber, and flues with a peculiar arran gement, and the connections therewith, by which the heat is more perfectly radiated and the fuel better economized than has been heretofore effected, the construction being cheap, durable, compact, and ornamental. The exterior of the coal-burner is composed of a square plinth elevated on fourlegs. On this the chamber of combustion rests, surmounted by a square cornice or abacus, on which a smaller cylinder is placed, forming an upper section or story. This last-named cylinder is capped with another cornice of proportionate dimensions. I Four triangular columns (the exterior surface of which may be either flat or somewhat convexed) rise from the plinth to the abacus, and four similar ones, but of smaller dimensions, extend from the abacus to the upper cornice. The whole may be surmounted with an urn, thus harmonizing and perfecting the outline of the wholeand forming a radiator of greatly-extended surface and com pact form, in which the surfaces of radiation do not interfere or counteract each other.

The details of the interior are as follows: The center portion of the plinth'has an ashpit in it, into which the ash-pan D slides in front. This ash pit is separated from an exterior chamber, a, that surrounds three sides of it, as clearly represented in Fig. 5, the di-,

vision being formed by the projection of the fire-cylinder A down through the top plate to the bottom plate of the plinth, as at g. The fire-cylinder A, forming the chamber of com bustion, is lined with fire-brick from the plinth to the abacus E. (See 0, Figs 2,3.) At the top of cylinder A there is a conewshaped ring, 2?, most clearly seen in Fig. 6, the base of which is just the diameter of the lower cylinder, its top being contracted to the size of the smaller upper cylinder, A. The breadth of this ring is equal to the depth of the abacus E, in which it forms an annular chamber all around the heater. The anterior portion of this ring i is pierced with oblong apertures, forming a grating, is, for about two-thirds of its circumference, forming a communication between the chamber inE and the upper part of the firechamber. Just in the rear of this grating 70 there is a partition on each side at j, Figs. 2 and 6, dividing said chamberinto two unequal parts. The triangular flues B, before spoken of, open at their upper ends into the chamber E and at their lower ends into the chamber in the plinth at 0, Figs. 4, 5, the front flues B, communicating with the front divisionof chamber E and the rear flues B opening into the rear portion of said chamber. The conegrate i is intended for three most important purposes First, it protects the chamber E and flues B against the entrance of coal or ashes,

by which they would become clogged secondly, the grating diffuses the heated products of combustion in entering the chamber E, and thus spreads out to the whole surface of the radiating-chamber E the heat from the fire before the gases descend to the plinth; and thirdly, it shields the outer surface of chamber E from the direct action of the heat from the coal in the fire-chamber, preventing their rapid destruction and the injurious effect upon the external atmosphere of the too highly heated iron.

In the front of cylinder A there is a draft port or opening directly opposite or a little above the grate, which latter issurrounded by a shell or conical ring descending below the draft port. Mostclearlyseenatw, Fig.2. The air enters the port 8, impinges against the shell 00, around which it circulates, and, in a diffused,

heated state, descends under the shell all 7 air to the fire.

around the grate, and thence rises to supply l The cylinder A, which is entire] y open to the lower cylinder at its bottom, has a grating surrounding the front portion of its top, communicating with the chamber in its cornice G, and this chamber is divided, as the chamberE,by platesm. (SeeFig.2.) The radiatingcorner flues, B, open into the cornice G at top and into the abacus E below. The purpose of this arrangementis twofold: First, by means thereof the heat radiating surfaces are materially extended; and, secondly, the deleterious gases rising into this chamber A from the fuel are drawn otf, descending into chamber E, and thence following the main current through flues B, and are thus prevented from entering theapartment. In the front of cylinder A there is a door through which the fuel is supplied to the tire, and in this door, as well as in the two sides of the cylinder, there is an open-work panel into which mica is inserted to show the fire. In -the rear part of the top plate, h, of chamber E there is an opening, a, (see Fig.6,) made of a proper size to insure a perfect draft. This opens into achamber, H, formed in the rear of the cylinder A. This has an opening and collar, F, for the attachment of a smoke-pipe, as in ordinary stoves. An openin g is made from cylinder A directly into the chamber H, forming adirect draft to the exitpipe at F, to be used in kindling the fire. This opening is governed and closed by a damper .opening into the chamber H. This damper is lettered o in Fig. 2. It is moved by a stem, P, that projects through the back of chamber H. hen the damper o is closed, the course of the draft is down the front fines, B B, back along the side chambers of the plinth, thence up the back flues B into the chamber H, through the rear part of chamber E, the gases in the upper cylinder, A, being drawn down by the current below.

'Having thus fully described the improved combination for a coal-burner, what we claim as the invention of HENRY STANLEY is 1. The combination of the grate i with the chamber E, substantially as and for the purposes set forth.

2. The upper section and fines, with the chamber E, or its equivalent, as and for the purposes specified.

3. The combination of the shell or projection or and the opening 8, to difi'use and heat the air before it enters the comb ustion-chamber.

CHARLES EDDY.

JACOB SHAVOR.

Witnesses A. 0. Coast THOMAS WooLcooKs.

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