US154348A - Improvement in magazine-stoves - Google Patents

Description

3 Sheets--Sheet1- E. SM|TH.

Mag azine-Stoves.

Patented Aug. 25,1874.

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3 Sheets--Sheet 2.

E. SMITH.

Magazine-Stoves. N0 ]54,348, Patented Aug. 25,1874.

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UNITED STATEs PATENT OFFICE.

ELIHU sMITII, on ALBANY, NEW YORK.

IMPROVEMENTIN MAGAZINE-Noves.

Specicati'on'forming part of Letters Patent No. 154,348, dated August 25, 1874; application filed i July 17, 1874.

' To all whom it may concern Beit known that I, ELIHU SMITH, of the `city and county of Albany and State of New York, have `invented certain new and useful 'Improvements in Stoves and Furnaces; and I hereby declare the following to be a full, clear,

and `exact description of the same, reference is a plan view of the internal base-due B, and

Figs. 6 and7 are sectional views of the rotary annular rim, showing the independently-movable flnger thereon.

`This invention relates to certain improve- .ments in stoves and furnaces, and consists in providing a stove or furnace with an external ascending flue, for the purpose of regulating detachable base-due, which receives the `heated gases, &c from the stove and conducts them to the ascending ilue, for the purpose of increasing the heating power of the stove or furnace; 1n provlding a stove or furnace with an internal base-flue, in combination withan external detachable base-flue, and a damper,

which controls communication between the said internal and external base-fines and the the heating power of the stove or furnace, by

increasing or diminishing the samel without nremoving the external detachable base-flue; in providing a stove or furnace withA a 'bellshaped grate, the lower centralportion of which is convex, supported within the hre-pot upon an arm of a hot-air flue provided with a concave bearing, which permits the grate to Q be tilted in any direction, for the purposes of f directing the burning-fuel toward the wall of the nre-pot, and the clinkers to the periphery of the grate, and of increasing the distance between' a portion of the periphery of theA grate and the wall of the dre-pot, through Vwhich space the clinkers may be removed with greater facility; in providing a stove or furnace with a rotary annular rim surrounding the fire-pot, and having a series of lingers "depending vertically therefrom, one or more of which is independently movable on said rim, for the purposes of clearing the fire of ashes, Ste., and of permitting an unusually large clinker to be removed through the opening made by turning up the independentlymovable finger; in providing a stove or furnace with a rotary annular rim supported directly beneath the lower edge of the coal-reservoir, and having a series of ngers depending vertically therefrom, for the purpose of mixing the unburned coal with the burning coal when the re is very low, without disturbing the base of the burning coal, and thus endangering the fire; in providing a stove or furnace with an internal hot-air llue surrounding a portion of the` fire-pot, having its bottom plate or lower wall made to pass alternately over and between the mica doors and windows in the fire-pot section of the stove,

`and its external wall provided with perforations -and openings through which heated air is discharged directly into the room, for the purposes of securing alternate illumination and radiation from the same annular section `of the stove, 'and of providing access through Athe doors in said annular section tothe grate.

In the accompanying drawings the external detachable base-line A is placed below the internal base-flue B, which latter is located beneath the annular plate C of the stove. The external detachable base-flue A is provided `with 'the air-space R, and is supported in its position by studs E projecting inwardly from the feet F of the stove. It is only necessary to remove one of the feet F in order to remove or replace the base-fine A. The bottom or lower surface ofthe external detachable baseflue A slopes downwardly and inwardly, for

the purpose of delecting theheat outwardly 'from beneath the stove, instead `of directly against the door. The internal base-due B is provided with a fine-strip P, Fig. 5, which causes the heated gases to make the circuit of saidbase-ue B before entering the external detachable base-due A. The base-flue A is provided with collars I J, and a flue-strip, I', which latter causes the heated gases to make the circuit of the `base-due A before entering the ascending-flue M. The internal base-flue B is provided with any opening, K, which re-t ceives the collar I. The collar J enters the opening L in the bottom of the ascending flue M. Communication is had between the baseiiue B and the ascending ue M through the opening N. When the damper O is turned' down the heated gases, `crc., do not` then e11`- ter the external detachable base-Hue A, but when the damper O is turned up it closes the opening N, and the heated gases, Snc., pass (see arrows I) from the base-Hue B, into which they have been'conducted by the descending iiue f (see arrows 1) to the external detachable base-flue A, through I K, make the cil'- cuit of the said iue A, and pass through J L to the ascending ue M, thence out at the exit-flue Z.' When the external detachable iiue A is removed the opening I is closed by turning down the damper O, and the opening .J is closed by a cap or thimble. The heated gases, &c., then traverse the internal ybaseiiue B, and pass through the opening'N to .the ascending ue M, and thence through the exit-ilueZ to the chimney. The baseiue B has removable caps Q and R, covering openings through which, when the caps are removed, access may be had to the flue B for cleaning it. An air-chamber, S, in the base-flue B is closed by a cap, T, and air is admitted to said chamber S through a tube, the open end U of which is shown in Fig. 2. .As the air becomes heated it passes up the hot-air iiue V (see arrows 2) into the air-flue k surrounding a portion of the firepot. The upper portion of the hot-airy ue V leads (see arrows 4) from the internal hotair iiue 7c to the top plate c of the stove, and conducts the hot air, which does not escape through the perforations o and openings p, through the' perfo'rations into a vboiler or oven, W, or into the room if the plate v be unoccupied. A damper, Y, in the partition that separates the descendingy and ascending fines j' and M permits a direct draft (see arrows 3) from the {ire-.pot to the exit-ueZ, when said damper Y is open. The arm a of the hot-air iue V forms the support for the bell-shaped grate c. The central portion of the grate c is convex'on the lower side, and this convexity enters a concavity in the upper end of the arm a, thereby forming a joint which permits the grate c to be tiltedv in any direction without displacing it from it its central support. The points of the grate-bars are curved slightly upward to prevent the coal from running over the edge of the grate c when in its proper position. By inserting a poker through one of the doors m, and pushing upon the periphery of the grate c, it canbe tilted so as to increase the distance between a portion of its periphery and a portion of the wall of the fire-pot, and through the increased space created by this operation the clinkers, &c., can be readily dumped into the ash-pan beneath the grate. The rotary annular rim g, having la series of ngers, h, depending vertically therefrom, r0-

tates in bearings i secured to the lower edge of the re-potj. By' rotating therim and iingers g h, which may be done by insertinga movable upon the rim g, and may be turned up to make a larger opening between theV fingers for the removal of an unusually large clinkers. surrounds a portion of the iire-pot j, and has abottom plate or lower wall, l, which passes alternately over and between the mica doors m and windows n. The outer casing of the stove forms the outer wall of the flue k, and is vprovided with perforations o and openings p, through which heated""air is discharged from said iiue k directly intok the room. The upper portion of the hot-air flue V conveys that portion of the hot air which does notescape through the openings p and perforations o through the perforations a'. Illumination is secured between the vertical ngers h, and the space q between the lower edge of the irepot and upper surface of vthe rim q. A series of vertical fingers, 1. depending from an annular rim, s, supported in bearings t secured to the lower edge of 'the coal-reservoir u, are

used to mix the unburned coal with the burning coal, when the fire is very low, without revolving the rim and ngers g h or the grate c, either of which latter operations would endanger the ire by reason of their tendency to shake it into the ash-pan. w is a boiler-seat, which may be opened to receive an appropriate cooking utensil. The casing surrounding the reservoir u is perforated, and the heated air from this portion of the stove is discharged directly into the room. c is the ash-wall'- of the stove, and d a damper controlling the communication between the ash-chamber e and the uef.

Having thus described my improvements, what I claim as new and useful, and desire to secure by Letters Patent, is

l. In 'combination with a stove or furnace, the external detachable base-Hue A I I J, operating substantially as and for the purpose hereinbefore set forth.

2. In combination with" the internal baseflue B P of a stove or furnace, the external detachable base-ilue A I I J, and the damper O for controlling the openings K and N; substantially as and for thepurposes set forth.

3. The bell-shaped grate c supported Within the fire pot j, in combination with and upon the arm a of the hot-air flue V, by a concavoconvex joint, which permits the said grate to be tilted in any direction, as and for the purposes set forth.

4. The rotary annular rim g, provided with the vertically-depending fixed lingers h, and a finger, h', (one or more,) which is independently movable thereon, in combination with the firepot j andthe grate "o, as and for the purposes hereinbefore set'forth. v

The internal annular hot-air flue la l in bearingsl t immediately below, 'and `in corn-AV binationwith, theooal-reservoiru, as and for thepurpose set forth.

6; Ina stove or furnace, the internal hot-V air luek, having its bottom plate or lower e walll ourved'alternately over and between the doors m and Windows m and its outer Wall provided with perforations o and openings 1), in combination with the lire-pot j, doors m, 1

and Windows n, asland for the purposes set yforth. v i l Y Y In testimony that I claim the foregoing im# ,provements, as above described,I have hereunto set my hand and seal this 2d day of July, 1874. Y e

'ELIHU SMITH. [ns] Witnesses F. L. PERLEY, THEoDoRE MUNGEN.

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