US1523508A - Carbon-consuming device - Google Patents

Description

Jn.- 2a h1925.'-

G. F. BIBB CARBON CONSUMI-NCTA DEVICE Filed May 4, 1922 .2,--- ...wurm r.. n'.

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To all ww'm/.z'tmag/ concern." l v Be it known that I, GEORGE fF. Brema citizen of the United States, and a 'resident ofxTroy', in, the county of Rensselaer and Stateof New York, lhave invented an lmprovement in Carbon-Consuming. jDevices, of which the following is a specification.

. Broadly speaking my. invention relates to solid fuel burning stoves or furnaces,A such for `instance Ias the type now known as pipelessfll furnaces. n Thefgeneral object of the invention is to provide mea'ns for effecting the complete combustion of the carbon of the* fuel to thereby not onlyl obtain from the fuel a maximumv amount of heat capable of being produced by theiburninof thereof but also prevent the discharge of smoke from the Vfurnace. This y is` a `very important v desideratum particularly with respect to heating furnaces. i

A .further object `is toprovide novel means for receiving air through a channel leading from the exterior of a stove or E5 furnace which airv is heated by the heat from the combustion chamber and is thereafter delivered in a streamv or streams in radialdirections toward tlie'vertical axis of the stove or furnace into the stove or furnace chamberwherein the oxygen of the air combines with thefinelyV divided carbon which may be ascending with the gases to effect ignition and complete combustion of the same.

A further general object of the invention is touprovide means of the' character indicated which is simple in construction, easily applied to furnace structures, and hence may be economically constructed and installed. .Y 4

NVithout undertaking to state other and further objects of the invention shall now proceed to a description of the saine and in doing so will make reference to the accompanying drawing in which I have illustrated one form of a convenient'embodiment of `my invention as applied to a furnace structure. However, it will be understood that changes in the details of construction may be made within Vthe scope of the claims hereunto appendedV without departing from the said invention.

In the drawing: y

F ig.' 1 is a central verticalA sectional View taken in.a plane extending from front to rear of the furnace structure showing the central anduppenportions of such structure7 the latter being.` provided with the device embodying my invention;

Fig. 2 is al topplan view of the device embodying my invention;

Fig. 3 is an edge elevation thereof; and

Fig. 4 is a transverse sectional view taken on the jline` le-4 of FigQ2.`

Referring to the drawing: l designates the upper portion of the fire box or chamber of a furnace of a `type generallyknown as pipeless, and 2 the combustion chamber thereof. The forward side of the said chamber is provided with a forwardly extending portionI 3 the forward end of which is open, as `indicated in Fig. l and isadapted to be closed by means of a .door comprising inner and outer walls 5 and V6 spaced from each other as shown in Fig. 1. A valve controlled air inlet opening is indicated at 7. By adjusting thevalve plate associated with this opening the amount of air permitted to enter the space between the plates 5 and G may be controlled.`

Secured by means of bolts 9 to the under side of the top portion of the wall of the combustion chamber 2 and to the top portion of the extension 3 -at the front side thereof is a device comprising a front relatively flat portionvlO the opposite edges of which are provided with upwardly extended beaded flanges ll which merge into the semi-circular flange l2 at the inner end of the said device. Concentrically of the flange 12 is another circular upwardly extending flange-like .portion 15 which extends to a greater height than the flange 1.2. These two flanges merge into each other as indicated in the drawing. The flange l2 contacts with the inner surface of the wall of the chamber 2 a short distance below the top thereof, as is indicated at 16 in Fig. 1. The upper end or edge of the wall of the said combustion chamber is extendedv inwardly, as shown at 17 in Fig. 1, and the upper edge of the flange 1j5 contacts with theV inwardly extended edge portion of the Walls of the said combustion chamber 2.

Vthrough the channel 2O and into the This contactual relation is clearly shown in Fig. l of theV drawing. It will be observed `that the flanges 12 and 15 co-operate with opposing adjacent portions of the upper end part of the combustion chamber wall to form a substantially semi-circular channel, into which air is delivered through the channel 2O formed between the portion 10 of the device and the upper portion of the forward extension 3 previously referred to. The space between the plates 5 and 6 of the door which closesthe-forward end of the extension 3 through which fuel is delivered to the lire-box constitutes a channel the upper end of which is in communication with the channel 2O and the latter merges into and communicates with the semi-circular channel previously referredto. The device becomes heated by the fire within the fire-box and combustion chamber so that air flows through the opening 7 and thence semicircularchannel'formed by the flanges l2 and 15 in co-operation with a part of the upper end portion of the wall of the combustion chamber 2, and after having been thus pre-heated is discharged through openings 21 at or adjacent t-he lower edge portion of the circular flange 15. Streams of air which are discharged through the said openings are directed slightly downuuirdly and radially toward the central vertical axis of the furnace or stove structure.

The introduction of the pre-heated air in this manner into the top portion of the combustion chamber effects a complete coinbustion of the carbon, thereby not only increasing greatly the efficiency of the burn 'ing operation of the stove but also avoiding the emission of unconsumed carbon from the combustion chamber. By the employment of a deviceembodying the principle of my invention a substantial economy in coal consumption is effected.

The radiator 22, of any desired known construction, is supported at its lower end upon the inwardly extending edge portion 17 surrounding the relatively large opening 23 in the top of the combustion cham- Y ber 2.

Although in the preferred arrangement as illustrated the device is shown as discharging the pre-heated air into the upper part of the combustion chamber, it will be understood that my invention is not limited to the particular arrangement shown. |The arrangement may be such that the preheated air may be delivered to the region of the Stove or furnace chamber above the combustion chamber. The essential thingis that it shall be delivered into a region above the --fuel whereV the heat is suiiiciently great to Vcause combination of the oxygen of the preheated air with the finely divided particles of carbon-which may beaascending with the gases to ignite and cause complete combus tion of the same. Y Y

A stove of the character indicated is provided with the usual draft openings for sup plying air to the fire-box but as these constitute no part of my invention they are not disclosed in the drawing. .For the same reason I have shown' only a portion of the radiator. My invention is directed and limited to the carbon consuming device described, which, as already indicated, is a device adapted to and employed for the purpose of effec-ting complete combustion of the carbon of the fuel and thereby preventing the emission or discharge of black smoke from `the furnaceV or stove.

Having thus described my. invention, what I claim and desire to secure by Letters Patent is: Y

1 In a solid fuel burning Y stove orA furnace, the combinationV of a combustion chamber, an air pre-heating device situatedl within the upper part of said chamber, means for vsecuringl said device to the upper part of the walls of said chamber, andthe said device comprising a forwardly extending fiat portion having fianges at its opposite edges which co-operate with the upper part ofla port-ion which extends forwardly from the said combustion chamber to form a channel, and the inner end portion of said device comprising upwardly extending liange portions surrounding an opening in alinement with an opening at the upper. end of the combustion chamber, and one of the said llast mentioned flanges being provided at or adjacent its lower edge with a series of openings through which pre-heated air Vis discharged radially into the said combustion chamber. l Q

2. A solid fuel burningstove or furnace, comprising a combustion chamber, a device situated in the upper end portion of saidm chamber, means for securing said device to the upper end portions of the wall of said chamber, the said devicecomprising a forwardly extending portion having flanges at its opposite edges andV terminating. atV itsY ing an exterior concentrioally upwardly and outwardly extending semi-circular flangelike portion, the upper edges of the said flanges being in contact with the under side of adjacent portions Vof the combustion chamber wall'torform a chamber in which Vairis adapted tobe pre-heated, and the said device being provided with a. circularV series ofv-openings-at or near the low er= edge of the said'inwardly and upwardly extending circular flange -throughfwhich pre-heated air is discharged radially 1ntothe said com hustion chamber, and a door for closing an opening into the said combustion chamber through which fuel is introduced, the said door comprising a plurality of spaced plates forming a. channel the upper end portion of which is in communication with the cha-nnel formed by the said device in cooperation with the upper part of the wall of the said combustion chamber, substantially as disscribed.

In testimony that I claim the foregoing as my invention I have hereunto signed my name this 14 day of April A. D., 1922.

GEORGE F. BIBB.

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