US1566088A - Dust-cleaning element - Google Patents

Description

Dec Y o. v. GREENE DUST CLEANING ELEMENT Filed Jan; 26 1924 2 Shets$heet 1 INVENTOR. Oscqrlreezz:

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I 40 all y I NVENTOR. @scar Z[ Greczze A TTORNEYJ' Patented Dec. 15, 192

UNITED- STATES OSCAR V. GREENE, OF CLEVELAND, OHIO.

DUST-CLEANING ELEMENT.

' Application filed January 26, $24. Serial No. 688,715.

To all whom/it may concern: I

Be it known that'I, OSCARV. GREENE, a

citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State 5 of Ohio, have invented a new and useful Improvement in Dust-Cleaning Elements, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other invent-ions.-

The present invention relates to a cleaning element hich may be used in various apparatus for the purpose of removing dust or other solid matter from a current of air or other gas. The principal object of the invention is the provision of an extremely simple element for this urpose which may be readily cleaned, whic can be easily manufactured, and which is eilective to remove the dust or liquid particles from the gas without unduly restricting the gas flow or creating any appreciable back pressure. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the ole -ms.

The annexed drawing and the following description set forth in detail cert." in mechanism embodying the invention, closed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings i Fig. 1 is a transverse sectional view of one form of my. improved cleaning element;

Fig. 2 is a section on the line 2-2, in Fig. 1; v Fig. 3 is a transverse sectional view showing a compositeelement made 'up of a number of elements of Fig. 1; Fig. 4 is a transverse sectional view of my cleaning element in cylindrical form; Fig. my cleaning device mounted in a conduit; Flg. 6 is a section on the hue 66, Flg. 5; Fig. 7 is a section of a cylindrical cleaning element; and Fig. 8 is a transverse section of a modification of such last? element.

Referring to Fig. 1 it will be seen that my improved cleaning element consists of two spaced foraminous elements 1 and 2-, which are arranged in parallel relation, and which consist of woven wire .sereen preferabl terposed between each pair of such dls- 5 is a section showing elements may be a 23 formed by spaced elements'l and 2 are means for producing eddy currentg in the gas which is forced through the spaced screens, these means consisting of another foraminous element 1, which is corrugated and extends completely across the space between the elements 1 and 2. The element 4 is also desirably formed of woven wire screen cloth.

The edges of each of the elements 1, 2 and 4 are rebent to form reinforcing flanges 6, 7 and 8, respectively, as shown in Fig. 2, to strengthen and stiffen the ends of the cleaning element. The entire element is received and held at its two longitudinal edges by means of U-shaped metal channels 11,which are shown in Fig. 1, and which may be secured to the cleaning plates in any suitable manner.

In Fig. 3 I have shown a number of individual cleaning elements 12, assembled together and secured in a retaining member 15, and it will of course be understood that any suitable number of elements may be used to gether, depending upon the conditions and requirements of use. r

In Fig. 4 I have shown the same cleaning elements arranged in cylindrical form, and in this construction the gas to be cleaned may be either drawn through the center 16 of the element and then forced or drawn radially through cleaning plates 17, 18, 19, 20 and 21, or it may be brought to the outside of the cleaning elements and then, radially inward through the various elemen I have found that an extremely efficient cleaning'action can be secured with an element of the above construction, in which the dust-carrying gas or air is allowed to pass through a plate or screen approximately at right angles to the normal plane of such plate or screen, and is then caused to SWlIl. or eddy, which motions cause the gas to wipe off or deposit the dust. upon whatever in its path of travel. Thus gas, in passing through a cleaning element, as shown in Fig. 1, after passing through the screen 1, expands somewhat, producing eddy currents for each of the compartments the corrugated screens 4, and the gas, while thus eddying around, flows through the screens 4: into compartments or chambers 24 and is again forced to eddy around, and the eddy currents thus formed pass against and through the screen 2. In the course of movement of the gas through these various screens practically all of the dust is brought into contact with the wires of the screens and is there deposited, this action being very much improved if the wires of the screens are first roughened, either mechanically or chemically, or if some adhesive substance is coatedover the Wires of the screen.

My cleaning element is uniform through out its entire area in its resistance to flow of the gas, but this resistance is extremely low so that almost no back pressure is set up. The gas is given a tortuous passage through the cleaning elements, a large number of eddy currents, the number depending upon various factors, one of which is the number of interposed corrugated foraminous plates, and in the course of its eddying through thecleaning element every unit of gas is at some time or another brought into contact with some portion of the cleaning element, and during its contact with the cleaning element the dust in the gas is brushed against the element and there is deposited or collected and retained.

One or more cleaning elements may be mounted in a casing 30 (see Figs. 5 and 6) provided with a handle 31, and then slidably disposed in a suitableopening in casing or conduit 32, sothat removal is greatly facilitated, asit can be eifected by simply pulling the unit out by the handle. A similar cylindrical unit is shown in Fig. 7, in which spaced screens 35 and 36, and'a col:- rugated central screen 37 are carried from a disc or cover 38 which fits over an opening in a casing 39. The screens 35, 36 and 37 are sealed at their cover edges against a flanged plate 40 and the entire unit may be removed for cleaning.

A simple form of cylindrical unit is shown in Fig. 8. comprisinga fiat screen 41 and corrugated screen 42 wound spirally to produce' a cylinder 43, which may then be mounted and employed as shown in Fig. 7.

Various uses for the present cleaning element will readily suggest themselves to those skilled in the various arts. and some of these uses. for example, are for ventilators for buildings, cars and vehicles of all descriptions, for conditioning the air for industrial plants, for cleaning the air supplied to air compressors and internal combustion engines, for use as window ventilators in all types of buildings, and for use in connection with spray washers, by-product recovery plants, etc.

In operation, when it is desired to clean the element, one of the ends of the element is unsealed'and the collected material is removed through the troughs of the corrugations, by washing or jarring the element as the same requires. 7

being broken up into Other modes of applying the principle or my invention may be em loyed instead of the one explained, change eing made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. A cleaning element comprising spaced foraminous collecting sheets, and other foraminous sheets arranged in consecutive open folds interposed in immediate sequence between said first-named sheets, the adjacent sides of said folded sheets being disposed at approximately sixty degrees to each other. i

2. A dust cleaning element comprising spaced parallel foraniinous sheets, and other foraminous sheets arranged in symmetrical corrugations interposed in immediate sequence between said first-named sheets, the alternate straight sides of said corrugated sheets being parallel and being disposed at an approximate angle of sixty degrees to said first named members.

3. A dust cleaning element comprising spaced parallel reticulated members, and

other reticulated members arranged in successive crimps interposed in immediate sequence between and in contact with one thereof.

4. A dust cleaning element comprising spaced parallel woven wire screens, and a consecutively corrugated woven wire screen interposed in immediate sequence between said. parallel screens.

5. A dust cleaning element comprising spaced parallel woven wire screens, a consecutively corrugated Wire screen interposed between said parallel screens, said corrugated screens contacting said parallel screens at the crests of its corrugations, and means maintaining said screens in said relation.

6. A dust cleaning element comprising a hollowporous cylinder formed of spaced substantially concentric foraminous sheets, and other foraminous sheets arranged in consecutive corrugations interposed in immediate sequence between said spaced sheets.

7. A dust cleaning device including a gas passageway, a cleaning element co-operating therewith comprising spaced recticulated sheets and other reticulated sheets arranged in corrugations and interposed in immediate sequence between said spaced sheets, and means for directing the flow of gas through said sheetsin immediate sequence.

8. A dust cleaning device comprising a.

support, and a hollow circular shell formed of a plurality of spaced foraminons sheets, said shell being removably mounted on said support, and means sealing the margins of sad shell when in position on said support. 9. A dust cleaning device comprising a lull support, a hollow cylindrical shell formed of alternatin fiat and corrugated foraminous sheets, and means for sealing one end of said shell against said support.

10. The combination of a gas passageway and a dust cleaning element comprising alternate flat and corrugated reticulated sheets co-operating to direct the fiow of gas through said sheets in immediate sequence.

11. As a new article of manufacture, an elementv comprising spaced woven wire screens, and another screen having its surface successively corrugated and disposed in immediate sequence between said spaced screens, the adjacent sides of said corrugations being flat and contacting said spaced screens at their junction points.

12. As a new article of manufacture, an

element comprising spaced woven wire screens, and another woven wire screen having its surface symmetrically corrugated and disposed between said spaced screens, the adjacent sides of said corrugations being flat and arranged at an angle of approximately sixty degrees to each other. 13. As a new article ot manufacture, an element comprising spaced porous metal sheets, and another porous metal sheet having its surface successively crimped and disposed in immediate sequence between said spaced sheets, the adjacent sides of said crimps being fiat and contacting said spaced sheets at the apices of their bends.

14. A dust collectin device, comprising a support, a hollow cylindrical shell formed of a'series of spaced foraminous sheets pro viding open marginal spaces for the removal of dust from between said sheets, means normally sealing one end of said shell, said shell being removably mounted on said support, and means sealing the open margins of the other end of said shell when mounted on said support.

15. A dust collecting device, comprising a support, a hollow cylindrical shell formed of a series of spaced foraminous sheets providing open marginal spaces for the removal of dust from between said sheets, a cover attached to one end of said shell and sealing the same, said shell being removably mounted on said support and having its other end and the open margins between sheets sealed by such support mounting.

16. The combination of a gas passageway, a dust collecting element com rising a plurality of spaced foraminous s eets removably mounted in said passageway, the margins of said element being sealed by said passageway to direct the flow of gas through said sheets in' immediate sequence, the margins being normally open to allow the collected dust to be removed from between said sheets, when said element is removed from said passageway.

17. The combination of a filter frame, a dust collecting element comprising a plurality of, spaced foraminou's sheets adapted to be removably mounted in said frame so as to seal 'the marginal edges of said element, said element upon removal having its marginal edges open for the removal of said dust through such edges.

18, The combination of a filter frame, a dust collecting element comprising a plurality of spaced foraminous sheets adapted to be removably mounted in said frame, said element having one of its marginal edges normally open but adapted to form a seal with said frame when in place therein, said element upon removal from said frame being adapted to have the collected dust removed from between said sheets through such open marginal edges.

19. The combination of a filter frame, a dust collecting element comprising a pluralityof spaced foraminous sheets adapted to.

be removably mounted in said frame so as to seal the marginal edges of said element, and direct the flow of gas through said sheets in immediate sequence, said element upon removal from said frame having its marginal edges open'for the removal of the collected dust therethrough and on a plane at right angles to the flow of air through the element.

20. The combination of a gas passageway and a co-operating filtering element removably mounted in said passageway and comprising a plurality of spaced foraminous sheets and a frame retaining member for said sheets, one side of saidmember being open to expose the spaces between said sheets to allow removal of collected dust therebetween when said frame is removed from said passageway, means adapted to close such open side of said element while in position in said passageway to direct the flow of gas through said sheets in immediate sequence.

21. A dust collecting element, comprising a plurality of woven wire screens having their edges rebent upon the body of the screens to form smooth reinforced margins.

22. A dust collecting element,- comprising a hollow cylindrical shell formed'of a plurality of woven .wire screens, the edges of said screens being rebent upon the body of the screens to provide smooth reinforced margins.

Signed by me, this 24th day of January,

' OSCAR V. GREENE.

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