US322634A

US322634A - Hot-air fire-place

Info

Publication number: US322634A
Authority: US
Publication date: 1885-07-21
Anticipated expiration: 1902-07-21

Description

(Men D. PEARSON.

HOT AIR FIRE PLAGE.

NQZ 322,634. Patented July 21, 1885.

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H H [Hz/H v WITNESSES INVETO M v w ATTORNEYS.

UNITED STATES PATENT OFFICE.

DOYEL PEARSON, OF MEMPHIS, TENNESSEE.

HOT-AIR FIRE-PLACE.

SPECIFICATION forming part of Letters Patent No. 322,634, dated July 21, 1885.

Application filed October 2, 1884. (No model.)

To all whom it may concern.-

Be it known that I, DOYEL PEARSON, of Memphis, in the county of Shelby and State of Tennessee, have invented a new and Improved Hot-Air FirePlace, of which the following is a full, clear, and exact description.

The object of my invention is to more largely utilize fireplaces for heating rooms, and also to provide for the special application of the heated air; and to these ends it consists in the peculiarconstructionand arrangementof parts, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation,partly sectional, of a fire-place embodying my improvements. Fig. 2 is a Vertical section on the line a a: of Fig. 1. Fig. 3 is a horizontal section, and Fig. 4 is a vertical section on line 3/ 3/ of Fig. 1.

The brick-work A is made w th a recess for the fireplace, as usual. In this recess is the fire-box or heater, formed by a plate or casting, at, having side flanges, b, which extend to the front, as shown. The plate a inclines outward at the top, and the side plates set off from the brick-work, so as to form an airspace or box, 0, between the plates and brickwork. (2 are the grate-bars,consisting of tubes set in the side plates, 1), so as to allow passage of air from one side of the fire-box to the other. by a fixed partition, 6, and into the smaller spacethus inclosed an inlet, f, formed through the brickwork, leads from the outer air. From the top of the main air-space a pipe, 9, leads upward and into the room at any desired place, or to other roo1ns,where it may be fitted with a flexible pipe for conveying the heated air to a bed or other special place in the room.

The back plate, a, is formed with ribs h, that strengthen the plate, and also form air-spaces to promote combustion.

The airspace at one side is divided In operation the fresh air from the outside enters at the inlet f, passes through the tubular grate-bars to the air-box, and from thence to the pipe 9. vIn this passage the air becomes highly heated,and ,coming directly from outside, is purer and fresher than the vitiated air of rooms.

There is shown at i an opening in the side plate, I), for admitting air from the air-box to the space beneath the grate to promote the draft through the fire.

The use of cold air from outside in the manner described tends to keep the plates forming the fire-place from burning out, and a great amount of waste heat is utilized.

I am aware that a fire-place having an airheating chamber back of the fuelchamber for supplying heated air to warm other rooms is old; and I am also aware that tubes have been arranged across the upper part of the fuelchamber, the said tubes communicating with the air-chamber in the rear of the fuel-charm her, and I therefore do not claim such invention.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. The herein-described fire-box or heater, consisting of the forwardly inclined back plate, at, having side flanges, b, and provided with the ribs h, and the inclined plate 6, projecting from one side flange and forming a partition when the heater is in position, and

the tubes d, having their ends passed through the side flanges and forming grate-bars, as set forth.

2. In a fire-place heater, the back plate, a, provided with the ribs h, the side plates, 1), the tubular grate-bars d, and the partition 6, in combination with the inlet f and outlet 9, substantially as herein shown and described.

DOYEL PEARSON. Witnesses:

R. B. SPILLMAN, A. 1?. (Econ.