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Publication numberUS532438 A
Publication typeGrant
Publication dateJan 15, 1895
Filing dateJun 16, 1894
Publication numberUS 532438 A, US 532438A, US-A-532438, US532438 A, US532438A
InventorsCharles G. Bergquist
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 532438 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

, Patented Jan. 15, 1895.

(No Model.)








SPECFICATION forming part of Letters Patent No. 532,438, dated January 15, 1895.

Application led June 16,1894.

To all whom, it may, concern:

Be it known that I, CHARLES G. BERGQUIST, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Smoke-Purifiers; and I do declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it apvpertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to that class of smoke purifiersin which water is used as a cleansing agent.

It consists of a flue section into which is thrown a number of ne jets of water, and within which aconveyer or blower is operated to advance the smoke. Y

The object of the invention is to eliminate from the smoke the carbon which is readily condensed, and which causes the nuisance eX- perienced in the use of bituminous coal; the carbon being preserved in such manner thatv it is available for any use to which it may be desired to put it.

In the drawings illustrating my invention, Figure 1, is a vertical section of my apparatus, being partly in elevation.' Fig. 2, is a transverse section on the line 2 2, of Fignl. Fig. 3, is a similar view on the line 3-3 of Fig. 1. Fig. 4, is a detail of a part of the apparatus.

The ue leading from the stove or'furnace is shown at A, and the flue lead ing to the stack at A. Between these two is interposed a piece of pipe, A2,preferably vertical, and carrying within it a worm or screw conveyer, B, which is a sheet metal flange wound spirally upon a shaft, b, which has an end bearing upon a spider, C, secured to the walls of the pipe,A2, and is journaled in a spider, c, at

seran No. 514,817. (No man.)

is prolonged upwardly so as to extend through 45 an elbow, d, uniting the pipe A2 to the flue A and carries a beveled gearD which meshes with and is driven by a similar gear D mounted upon a shaft, d, journaled in a bracket hanger, d', mounted upon the el- 5o bow, a. l

The pipe, A2, is inclosed by a water jacket," E, served by a pipe e, and havinga drain cock, e. The walls of the pipe, A2, covered rations, F, F, to admit small jets ofwater. A door, Gfis placed in the lower end of the r pipe A2, being hung upon hinges, g, and secured by a latch, g. The purpose of this door is simplyl to give access to the'rnechan- 6o ism within the pipe. The lower end of the pipe, A2, is `open-and submerged in a tank of water, H, into which the water` discharged into the pipe through the jets, F, F, falls with the carbon washed from the smoke.V The water 65 necessarily chills the smoke, and the conveyer B is used to drive it through the nue.

- I claim as my inventionl`. In a smoke purifier the combination with a section of Ilue having apertures for the ad- 7o mission of jets of water, of 'a conveyer as v B within the ilue section for advancing the smoke substantially as described.

2. In a smoke purifier the combination with the nues, A and A', of a vertical flue section, 75 A2, connecting such ilues and having aperturesy for the admission of water jets, a water jacketcncompassing the viiue section A2 and open to its apertures, a spiral conveyer B within the flue section A2, and means for 8o rotating such conveyer, substantially as described and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses. Y CHARLES G. BERGQUIST. Witnesses: y


the upper end of the pipe, A2. The shaft, b,


by the water jacket E, have numerous perfo- 55.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2657912 *Apr 5, 1952Nov 3, 1953Dravo CorpBearing support for vertical agitating shafts
US3879503 *Aug 2, 1973Apr 22, 1975Us HealthScintillation analysis system
US4217315 *Jul 12, 1979Aug 12, 1980Keeler Miner SHumidifier and moving indoor sculpture
US7059761 *Sep 16, 2003Jun 13, 2006Flavor Burst Co.,Product blender and dispenser
DE918768C *Mar 26, 1939Oct 4, 1954Martin GumpertVerfahren und Vorrichtung zur Abscheidung von Russ in Rauchgaszuegen von Kaminanlagen durch Befeuchtung der Rauchgase mit Fluessigkeiten
Cooperative ClassificationB01D47/16