US 895790 A
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UNITED srnrns PATENT ordnen N I GEORGE C. RICHARDS, OF BERKELEY, CALIFORNIA, ASSIGNOR TO RICHARDS lGAS AND FUME C'ONDENSER CO., OF OAKLAND, CALIFORNIA, A CORPORATION-OF CALIFORNIA.
i Specification of Letters Patent. I Application mea August 15, 19er. serial Ne. 388,720.'
.Patented Aug. 11, 1908.
T o all 'whom'fit may concern:y
Be it known that I, GEORGE C. RICHARDS,
` Citizen ef United states, residing et Berkeley,
in the county-ofAlameda and State of California, have" invented new anduseful Improvements in Fume-Condensers, of which the following is a s ecification. y My invention re ates to an apparatus for condensing and .absorbing smoke and fumes from smelters, and from garbage or other crematories, furnaces and smoke-stacks.
The object of the present invention l'is to provide a simple, practical means for condensing or absorbing `noxious vapors and The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawm s, in Whichigure 1 is a vertical sectional view ofthe' apparatus. Fig. 2 is a detail view of a baffle.
A re resents a smoke-stach, through which arise al the smoke, fumes and vapors from the combustion chamber or furnaces. The top ofthe stack has a Water-'ackcted bend 2, which leads intoa horizonta conduit portion 3. The recei'vn end of this conduit is 0011-',
` `tracted or choke as shown at 4, and the jet ago .chamber 6 has an openingI into a condensing and collecting conduit 7. This conduit 7 is center of theconduit.
preferably made with a vertical portion with connections with the chamber 6, and with an inclined continuation 7. v vertical portion is preferably provided with the 'interior bafIieslS which may be annular, and which have their upper surfaces sloping downward andinward, so that any Water vassing down the conduit 7, on striking-these bafiies will be shot from all sidestowa'rd the The extension 7 of this condensing conduit or-tube is provided draft through the Y bringing The interior. of the l with short, spirally arranged, angle iron rifflesor, baffles 9/ alternately arranged on the bottom and part way upthe sides of the section 7 insuch fashion. that' any Water flowingv down this inclined tube will be Washed from side to side, falling from one baffle -to another in the form of a series of cascades, with the effect that the tubewill be racticallyfilled With spray.
uitably arranged in the chamber 6, so as to dischar e in line with the tube or conduit 7, is a hyrraulic nozzle 10 havin a vsuitable regulat' ed to disc arge acolumn of 'spray downwardand into the tube. Preferably the 'upper end of the tube is ex anded, as shown at 7 a.
In practice, the smoke and vapors rising throughI the smoke stack are. forced by 'means of. the nozzle 5 into the receiving cham-'- ber 6. If a water j etl is used at the nozzle 5, a primary condensation and absorption of valve 11; and this. nozz e is adaptw the smoke and vaporstake place in the eX- tension 3. In the chamber 6 the direction of travel of the vapors is changed, so that the final outlet may be close to the ground, or near the level on which the furnace is situated. The rounded chamber 6 is preferred, as itbbviates back pressure-in thesmokestack.\VV l', I i
The water discharge from the nozzle l0 acts to, force the vapors downward through the discharge and condensing conduit 7-7,
with gravity aiding the pressure of the water.
The series of baffles 8-9 in the conduito erate as above described to create a series of) cascades, substantially filling the entire conduit with a column of s ray, and so every particle of smo e and fumes into intlmate contact with the water particles to insure absolute condensation'or absorption. At the same time, this falling column of water and spray in the conduit 7--7 accelerates the draftthrough the furjr There is no limit to the size or applicationof this apparatus.
llVhile 1t has been especially designed for use in connection with smelters, it is e ually applicable. for use in smokefstacks o factories, battle-ships, or wherever it is desired to remove or conceal vall external evidences lof combustion. In fact, on War-ships it would be 'of great value, becausel its use would prevent detection of the vessel by the enemy through the medium of the escaping Having thus described myinvention, what I claim and desire to secure by Letters Patent is-v v ,1. In' an ap aratusfor condensing vapors,
the combinatlon of a stack having a lateral extension and a lreceivi chamber at the end ofsaid extension,"a tu ular conduit leading downwardl -from said chamber, a. h draulic nozzle ischarging into said conduit, and bafiies on the inslde of the conduit` arranged to throw the water and spray toward -the center of said conduit.
2. In an apparatus for condensing vapors, the combinatlon of a stack havingyfa lateral extension, areceiving chamber at the end of said extension, a tubular 4conduitV leading from said chamber,.a hydraulic nozzle arrangled to discharge into said conduit, baiies in t e conduit acting on the water from said nozzles to project the water in a series of cascades toward the central axis lof the conduit, said conduithaving an inclined tubular extension with oppositely arranged spiral riiles.
3. In an ap aratus for condensing vapors, the combinatlon of a stack having a lateral extension, said extension having a contracted throat portion at its receiving end, a nozzle discharging through said throat portion in the direction of travel of the vapors to create a forced draft through the extension, a rounded receiving chamber atthe discharge end ofsaid extension, said receiving chamber having a downward extendin outlet, a
conduit connected'with said out et, and'a nozzle in the receiving chamber discharging discharge end of saidextension, said receiv,
ing chamber having a downward extending outlet, a conduit connected with said outlet,
and a nozzle in the receiving chamber dis-v charging through said outlet, said conduit 4having lnternal baflies4 operative to create a series of cascades therein. In testimony whereof Ihave hereunto set my hand in presence ofztwo subscribing witnesses. y
GEORGE C. RICHARDS. Witnesses: j
L. H.NoURsE, FREDERICK E.- MAYNARD.