US1772718A - Chimney construction - Google Patents

Description

Aug. 12, 1930.

E. o. HOWLE CHIINBY CONSTRUCTION filed Nov. 18. 1927 vINVENTOR ATTORNEY i the line 22 of patented Aug. 1 2 7 7 f" a DELAWARE i fcnin-NEY ooNsrRUc'rI'oN L i Application filed Noveinber 18, 1927. Serial 80.2,222.

My invention relates to improvements in chimneyconstructions, more particularly those used in connection with incinerators, refuse burners, etc, and it consists in the icomhinations, constructions. and arrange.

ments herein described and claimed.

An object of my invention is to provide means whereby sparks such as those produced by burning paper or rags will be prevented 10 from escaping from the stack or flue whilebeing burned. e

A further object is toprov de a; simple a and effective means fori'arresting particles such as paper and rags before:the particles;

1 .can enter a screen trap at theupper endof the flue, and permittingthe particles, to becon-f sumed, thereby eliminating the danger of the particles stopping up the screen;

A further object is, to provide a device' wvhich is efficient in blocking'flying particles and at the same time reducinglto a minimum the danger of slowing down the draft.

Other objects and advantages; will appear in the following specification, and the novel ,:lfeatures of the invention will beparticularly' pointed out in the appendedclaims.

My invention is illustrated inthe'aceonr panying drawings, forming part of .this ap-' plication, in which Figure 1 is a vertical section througha portion of an incinerator with my invention applied thereto.

Figure 2 moved, v V I Figure 3 is amodified form of bafile,-and- Figure 4 is another modified form of baffle.

- In Figure 1, I have shown a portion of an incinerator to which'my invention has been 40 applied. This consists ofa shaft 1 havingv filling openings such as those shown at 2 and 3. These openings may be on various floors,

as where the incinerator forms part of the equipment of an apartment bui1ding,and may be provided with doors 4. The shaft 1 6X- tends to a furnace 5 of "any suitable type. The shaft has preferably a partitionfito provide a smoke flue 7 anda leading to the chimney 9.

Near the top of the latter is a metal frame will be observe'dthat that between! these two plates pass upwardly,

trapped. and 113 is a horizontalplan 'view along Figure 1 with the screen re-. terial suchia'spaper,

refuse chute 8 'perforatedbfafiles is of course l fel -11 E; AT ENT omce nn vnsr o. nowLE, ori cnicneo, -I iNoIs, AssIG vonfnY iunsnn nssrenmnnrs, 5 1 j i'ctrn-wnstr mcmnnamoa conronarron, or cn cneo, ILLINOIS, A coRroRArIoN or,

lQ'whichis disposed on the interior and which i shown in Figure 2. ported bafile plates 12 bent toretain them in position. Referring to Figure 2,it-will beseen that the plates 12 and I 13 areperforated and that the openings 12 and 13? are-relatively close together. In the drawings, I have shown only two of these 4 plates, but more might be used without de partingfrom the spirit of the invention." It

carriedwu wardly. by the draft" will be said pockets.

which it is desired to burn, may be deposited inithezchute 8;by opening one. of the doors ef-suchas theupperdoor shown invFigure 1.

his ire p whichamay pass down wardly into. the furnace, takefire, and then 7 theplate 13 covers substantially one half of the area of the chimney, 1 while the plate-12 covers the. other half, "and p is a space, whereby the iproduets .of combustion may i :The said platesinclindup- 1 wardlyctowardopposite sides of the flue to'providepockets in which burning paper he, perforations in the p1ates'12 permit the-draft to pass through the '"platescandithereby insures thatthe'burning f; j 1 particles *Lof :pa er. will be carried into. the

urmounting the chimneyis a screen lt, preferably of wire mesh ,1 I From the foregoing description of the va 1 rious parts of the device, the operationthere ofimayfbexreadily understood. The refuse,

fuse: may consist partly of light mac- 1 be carriedupwardly by .the draft. It is a v tendency. forgpapery-that is, loose paper, when it once-ientersjtheflueto. spread out and be carriedupwardly by the draft. Thus it .will

be seen thatiorclinarilythese flying particles ofpaper'vvouldpass through theichimney or flue, and into the screen, therebyeVentuaHy blocking the screen. I have found that with the perforatedbafiles as arranged, articles suchas newspapers and similar light material will bevtrap'ped by the bafiles andheld there while 'beingfconsumed. The purpose of the to provide a direct draft that. is tosay, there is no slowing down offthe draft, and Diecesof newspaper,

etc., will not be caused to be deflected from the baffles or pass through the space between the two baflles.

\Vhen the draft due to the burning material has lessened, then the matter held by the ball'les will fall down the chute into the furnace and there be consumed. Should the bafile plates at any time becomes accidentally covered or blocked with loose paper and the like, the spaoebetween the two plates will of course permit the products of combustion t0 1 pass upwardly, thereby preventing the possibilty of the chimney becoming entirely blocked. a

l have found that with this arrangement the clogging of the screen 14 by matter which would ogherwise without, howcve the living quartein the smoke to enter range the openlngs such as those shown at 2 and 3, the reason being that, while the matter whica would tend to clog the screen is trapped underneath the ballles, thesmekcand products of combustion can pass on'outwardly through the openings 2.1 in the bailles and the race between the bellies and then, as stated, said matter will fall down 7 {into the furnace when the draft has de- F'creased.

The inclination of fl itance between them of lcorurseare matters which depend upon-the dimensions of the chimney or chute. Such changes, however,

would fall within thespirit and the scope of the invention. 1 i a i v 9:; In Figure 3, Ihave shown a plan view of a modified form o l: ball'le. This bafile consists upwardly is eliminated chimney to substantiallythe center thereofr V the balfies and? the dis 1 I of screen sheets 20-30 made from any suitable wire fabric, the sheets 20-20 being overlapped in the manner shown in Figs. 1 and 4a Eigure lshovfvs afurlhcr modification of the baffle. ,This ballle consists of overlapping plates 21-21.

I claim: v i is 1. The combination with a chimney, of a" frame disposed on the interior thereof near the top, transverse rods carried by said frame,

a balile plate having an passages therethrough carried by certain of said rods, said plate extending downwardly and inwardly from; one wall 01 the chimney to substantially the center thereof to provide a pocket trap through which the draft will pass, and

a second bail'le plate mounted on others of said rods and extending downwardly and inwardly from the opposite wall, the inner ends i of said hallle plates being spaced apart to provide a passage for the products of combustion. a

2. The combination with achimney, of a frame extending into the chimney from the upper end thereof, transverse rods carried by saidframc, a ballle plate carried by certain of said roes and having openings therein for the passageo'f air, said plate extending down i 66 wardly. and inwardly from one wall of the

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