US313998A - Hot-air generator for fire-places - Google Patents

Description

(No Model.) J S DEARDORFP 2 sheets-sheen 1.

HOT AIR GENERATOR FOR FIRE PLACES. N0. 313,998.

Patented Mar. 17, 1885..

N. PETERS. Pham Lhubmmer (NoModel.) l S DEARDGRFF 2 Sheets-Sheet 2. yHOT AIR GENERATOR F08 PIRE PLACES. l No. 313,998. Patented Man 17, 1885.

IH H---- --iv i 8 l 2 d Q F11 Rx "10mg UNTTEE STATES PATENT OFFICE,

JESSE s. DEA'EDOEE'E, OE CANAL DOvEE, OHIO.

HOT-AIR GENERATOR FOR FlRE-PLACES.

SEGFICATEQK forming part of Letters EPatent'No. 313,998, dated March 17, 1885.

Application hd June lv/I, 15%

To all whom, it may concern,.-

Be it known that L JESSE S. DEAEDOREE, a citizen of the United States, residing at Canal Dover, in the county of Tuscarawas and State of Ohio, have invented a new and useful Hot- `Air Generator for Fire-Places, of which the plify and cheapen the construction ofthe apparatus and make the same more eiicient in use.

With these and other objects in view the said invention consists in certain details of construction and combination ofparts, as hereinafter set forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a front View of a lire-place partly broken away, illustrating the application ot' my in1- provement. Fig. 2 is a vertical longitudinal sectional view of the same on line x w, Fig. 1. Fig. 3 is a detail perspective View of the chamber with the front plate removed. Fig. 4 is a vertical transverse section.

Referring to the drawings, A designates the chamber, which may be made of wrought or cast iron, or terra-cotta or other suitable material, but preferably of east-iron, said cham4 ber comprising a bottom wall, B, sides@ C, top wall, D, and back wall, E, and made in one or two sections, as may be found desirable. At or about two-thirds of their length from the bottom wall the sides C C slant outward at an angle of about forty-five degrees, the top wall, D, inclining downward from the back wall and connecting with the sides, as shown.

F designates the removably-attached front plate formed in one piece and corrugated, as shown, the upper portion of the front plate inclining at an angle to the lower portion to correspond with the Shape ofthe chamber A, the edges of the plate along the top and sides being formed with an inwardly-turned flange, G, overlapping the top and side edges of the chamber A, thus shielding the chamber from the introduction of gas, bolts H H passing through the flanges and serving to secure theA front (No uio Eel.)

'lhe sides (l C are provided with inletsllnear the bottom wall, B, `for the entrance of cold air to the chamber, and should it be found de` sirable under certain circumstances a cold-air inlet may be formed in the back wall. wall, D, is formed with a series of swells, M, extending out from the top wall, a series of openings, J, being formed through the swells near the back wall at the highest part of the chamber, and a series of pipes, K, extending from the openings upward through the chimney for conducting the heated air from the chamber to the several apartments ofthe building, the upper ends of the pipes or flues opening into registers ofsuitable form. Sockl ets L L are formed around the openings for the purpose of keeping the pipes or tlues K ina vertical position.

The operation ofmy invention will be readily understood from the forgoing description, taken in connection with the annexed drawings. rlhe chamber rests at its bottom on masonry-work M of the chimney, and is built away from the back wall of the chimney, so as to leave a space between the same for the passage of soot and ashes, and thus the back wall ofthe chimney will not conduct heat away from the chamber. The peculiar shape of the front plate is productive of the most thorough acvtion of the heat from the grate, inasmuch as the fuel rests against the lower portion ofthe plate, while the upper portion projecting out over the fire receives the volume of the ascending currentsof heated air and gases, so that the charnber isiheated to the utmost degree. The cold air entering from the lower portion of the chamber soon becomes heated and rises toward the highest part of the chamber, where the outlet-lines are located,the hot air passing through the iiues and up into the rooms above, to which the pipes or ilues communicate, the registers being employed to shutoff thesupplythrough any one pipe, as found desirable.

It will be' seen that by constructing the front plate in one piece it is less liable to warp, and will also prevent leakage of gas or hot air, which would happen if it were made of two pieces, the meetingjoint of which may open by the constant contraction and expansion of the heat from the lire. It will also be seen that the flange around the sides and top edges of Thetop' the front plate will overlap the joint made by the front plate with the chamber, thereby preventing the introduction of gases into or the Wasting of hot air from the chamber. The inclined form of the top wall enables the hot air to rise directly to the point Where the hotair pipes connect, and thus the introduction of cold air and the outward passage of hot air is kept up continuously. Furthermore, by means of this construction I am enabled to adjust and use one form of chamber for all the different sizes of mantels and grates, since the slanting form of the top wall with its swell on the back enables me to apply it in various places where a straight top wall could not be used. It will be seen that the front plate may be easily de` tached and replaced by a new one when it becomes useless. The castings of the chamberare not exposed to the action of the fire, except the front removable plate, as they are all incased by the masonry-work- In order that those skilled in the art to which this invention appertains may have a full and clear idea of the nature and advantages of the present invention, I would haveit understood thatI do not claim any of the features shown in my former patent.

rlhe additional invention herein set forth is an essential improvement for the practical inof the present improvement,I would state that prior to my invention it has been proposed to n se hot-ai r generators removed from the wall to afford a space behind; but in my caseIprovide the generator with swells,which prevent it from setting against the wall and closing the space; also, that it has been proposed to use a corrugated front plate with its edges flanged to lap over the top and side walls of the generator to make a tight joint.

Having described my invention, I claim-- l. As an improvement in hot-air generators, the combination, with the chamber havingits top wall slanting downward from the back wall and its upper portion projecting outward,and a series of swells orextensions on the rear ofthe top wall to rest against the back wall of the chimney so as to set the chamber out from the same, of the removable frontplate conforming to the shape of the chamber and flanged to t over the top' and side edges thereof, cold-air inlets provided in the chamber, and openings through the top wall adjacent to the swells to receive a corresponding number of pipes or flues, arranged and operating as set forth.

2. ln a hot-air generator, the combination,

with the chamber having its top wall slanting downward, swells or extensions M,on the rear end of said wall, holes through the top wall adjacent to the extensions, andaseries of pipes or dues fitted in the holes and extending upward through the chimney and communicat ing with the rooms above, of the removable front plate, arranged and operating substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

JESSE S. DEARDORFF.

Titnesses:

GEORGE XV. SCHILLING, Josnrn H. Hoscrnrrnn.

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