US91059A - aldridge - Google Patents

Description

T. c. ALDRIDGE.

Fireplace. 9

No. 91,059. 4 Patented June 9, I869.

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UNITED STATES PATENT OFFICE.

THOMAS C. ALDBIDGE, OF ST. LOUIS, MISSOURI. I

FIRE-PLACE.

Specification forming part of Letters Patent No. 91,059, dated June 8, 1869.

To all whom it may concern:

Be it known that I, THoMAsO. ALDRIDGE, of St. Louis, in the county of St. Louis and State of Missouri, have made certain new and useful Improvements in Fire-Grates; and I do hereby declare that the following is a full and clear description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of this invention is in the formation of the flue in the grate-frame or gratefront, thereby permitting the grate and its basket to be set forward considerably farther than usual, and thus bringing the heat-source closer to the room, as well as causing a more advantageous reflecting-surface to be formed by the grate-back. Said nature is furthermore in the arrangement of a series of perforations to feed air at proper points to the flame, and in a second series of perforations to cause the products of combustion to ascend properly along the slope of the grateback, all of which is now to be more fully explained.

To enable those herein skilled to make and use my said improvements, 1 will now describe the same, referring to the accompany- 1ng-- Figure 1 as an elevational front view; to Fig. 2 as a vertical sectional elevation, showing the application of the features of this invention to the ordinary form of fire-grate, as used in dwellings for heating.

In said figures, A represents the grate-basket, attached in the grate-frame in about the usual manner. In order, however, that the air mayfreely have access to as large as possible a mass of fuel, I arrange the grate-bars a of acurvature to return at as high a point on the grate-back as may be practicable, generally as shown in Fig. 2.

In the rear of the grate-back B, I arrange the air-passage B, building this in the wall in the usual manner, and to cause the air to enter I arrange the perforations 1) below the grate-basket in the back B. The air and dust from the grate-pans, thus drawn into the passage C, passes up and enters into the flamespace by the perforations b about on a line with the top of the grate. By this means a strong draft of oxygen is given to the fuel,

causing an intense combustion. The products of said combustion pass up along the grateback B, reaching the slope B Said slope projects forward to the fluemouth 0. As before stated, to be in the nature of this invention, said flue-mouth is arranged in the grate frame or front D.

The frame D may be projected forward of the chimney-way in any ornamental form, thus giving room for the flue-mouth O and the rising-flue O ascending herefrom.

In order that the products of the combustion may hug the slope B in rising, and in order to cause a perfect admixture of the gases, thereby giving a more perfect combustion, I arrange the perforations b at the lower edge of the sloping back B said perforations leading directly to the chimney E. A small volume of the gases passes through said perform tions, and thus creates cross and counter currents, in a manner conducive to a proper ascent of the main volume of the products of combustion, and conducive, moreover, to a better consumption of the fuel. The gases enter the flue-mouth O, passing up in. the frameflue O, and therefrom to the chimney E.

By the arrangement of the flue-mouth G and flue G in the frame D, the grate-back B B is brought forward to a closer than ordidary proximity with the face-wall of the chimney. Moreover, the projection or framed flue 0 may serve as a shelf for connecting a pipe or heater to warm other apartments, and as, by its construction in the frame D, it is independent of the chimney E, or any flue directly connected therewith, the gases may be conducted from said flue O O to any point deemed convenient.

The rear of the flue O G is formed by the frame back-plate D. Said plate is bent to conform to the slope of the back B and affords a rest for the brick or other materialof which the back B B is usually formed.

Having thus fully described my invention, what I claim is 1. The grate A, back B, perforations b. passages B, perforations b and b and chimney E, all arranged and acting substantially as set forth.

2. The back B B flue-mouth (J, and flue 0, when arranged in the grate-frame D, and combined with the chimney E, substantially as set forth.

3. The fine 0 0, frame D, and back-plate D, combined with the back B B substantially as set forth.

THOMAS C. ALDRIDGE.

WVitnesses GEO. P. HERTHEL, J r., WM. W. HERTHEL.

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