US1311973A

US1311973A - Pneumatic separator

Info

Publication number: US1311973A
Authority: US
Publication date: 1919-08-05
Anticipated expiration: 1936-08-05

Description

W. G. JOPSON.

PNEUMATIC SEPARATOR.

APPLICATION FILED SEPT. 2!. 191a.

Patented Aug. 5, 1919.

2 SHEETS-SHEET 8 nwmtoz W. G. JOPSON.

PNEUMATIC SEPARATOR.

APPLICATION FILED SEPT. 2|. I918.

1 ,3 1 1 ,973. Patented Aug. 5, 1919.

2 SHEET$-SHEET 2.

' '20 wuentoz alto-nut,

UNITED sTATEs PATENT oEEIoE.

WILLIAM GEORGE JOPSON, 0E ABINGTON, MASS CHUSETTS, Assreiv'on To ANGLO- AMERICAN TEXTILE MACHINERY COMPANY, 013 BOSTON, MASSACHUSETTS, A

CORPORATION OF MASSACHUSETTS.

' PNEUMATIC SEPARATOR.

To all whom it may concern:

Be it known that I, VILLIAM GEORGE J Olson, a subject of the King of the United Kingdom of Great Britain and Ireland, residing at Abington, in the county of Plymouth and State of Massachusetts, have invented new and useful Improvements in Pneumatic Separators, of which the following is a specification.

This invention relates, generally, to means for separating'fibers, and the like, from a current of air in which dust and refuse are present, and has particular reference to a separator for pneumatic card-stripping or card cleaning apparatus for separating from the dust or refuse, the cotton or other salable waste material which adheres to the card clothing or which is embedded therein or lying thereon, and which is drawn therefrom, by pneumatic means through a pipe or the like.

In stripping devices now in general use the cotton, or other salable waste material, is separated from the dust and refuse by drawing the air carrying these products through a canvas cylinder, or the like, so as to filter out the fibers, but this method is open to the objections that it is not economical and efficient, and the cotton, or other salable waste, has a tendency to become curled and matted, thus reducing the value of the same.

It is the object of the present invention to provide an improved separator which is simple in construction, efficient in operation and by means of which the cotton is separated without being curled or matted, and this latter feature is of great importance as the cotton Waste is of greater value if it is not curled.

- -The above and other objects of my invention are obtained in the embodiment described in the following speclfication and illustrated in the accompanying drawings, but it is to beunderstood that the present embodiment is disclosed by Way of illustration only and that the invention is not re- Specification of Letters Patent.

Patented Aug. 5, 1919.

Application filed September 21, 1918. Serial No. 255,029.

In the accompanying drawing,

Figure 1 is a side elevational view of my improved separator with a portion thereof broken away for purposes of illustration.

Fig. 2 is a sectional view showing the deflector .in elevation.

Fig. 3 is an enlarged side elevational view leading from the card room, it being understood by those familiar with the art that the end of this pipe has a nozzle or the like, the aperture of which is in close proximity to the cards or carding cylinder. The pipe 10 delivers into a union or coupling 11 from the 1 outlet end of which leads a pipe 12 to a dust filtering device hereinafter described and the coupling has a branch provided with an opening 13 Which delivers into the top compartment or chamber 14: of a tank 15; will be seen from Fig. 1, the tank is divided into the cotton receiving chamber 14 and a dust chamber 16 by means of a horizontal partition 17.

The chamber within the coupling 11 is of greater cross-sectional area than the pipe 10 and within this chamber and leading from the inlet end of the coupling 11 into the branch opening 13 is a deflector comprising a curved plate 18, the plate being preferably formed of sheet metal and being of less width than the chamber of the coupling so as to provide spaces 19 through which the air current, together with the dust and light refuse carried thereby, is

adapted to ass about the plate or chute 18. Preferably, the chute 18 increases in width toward its lower end. The deflector 18 is employed to deflect the cotton or other salable waste into the chamber 14%, and to increase the eflieiency of the device the concave face of the deflector, that is, that face which is opposed to the incoming current of air, is highly polished. The degree' of polish upon the deflecting surface mayvary but I-have found that the higher the degree of=polish, the less is the coeflicient of V friction between the cotton and this surface and therefore the greater the efiiciency.

The angle between the deflecting surface and the longitudinal center of the pipe 10, and the radius of curvature and the size of the deflector may vary in accordance with the requirements of the particular machlne, but I have foundthe best results are obtainedby making the deflector of greater width than the opening through the conduit or pipe 10 and bybending the edges 20 of the defiector:=at right angles: to' the polished surface so ithat the deflector is channel shape in C1OSSS8GtlO11,'aS most clearly shown 7 in Fig. 4. To avoid any shoulders that would impedethe escaping dust, the posterior end of the chamber within the coupling- 1'1 slopescconically toward the conduit 12, and this conduit is of greater diameter than the pipe 10. V The pipe 12 may lead toany suitable de vice for removing the dust from'the air, but forzillustrative purposes, I have shown the pipe 12 leading to the dust chamber 16 within which :is mounted a cloth covered vcylinder 21' which cylinder may be rotated zbya handle 22. Extending into the interior of the-cylinder 21 and forming a bearing for one enduofthe same-is a pipe 23 which c-leads to a suitable suction device (not qshown). "In engagement with the exterior surfacegof the filtering cylinder 21 is a brush '24 which when thecylinder is rotated, wipes the dust therefrom. The cotton which collflects within the chamber 14% and the dust which collects within the chamber 16 may be removed atthe doors 25 and 26,rrespec 40tively. V r The: operation. of the device will be read- ;ily understood from the foregoing descrip- :'tion. When thesuction device (not shown) to which pipe 23 leads is set into operation, a current of air is drawn from the card 'room' through: the pipelO into the coupling 11 where the current strikes the pol- :ished surface of the deflector '18 with the result that the cotton and'dust entrained yin the air currentare momentarily retarded, ithe cotton being deflected so as tofall into the cotton receiving-chamber 14, and the p a dust, =which is lighter than "the cotton, be-

ing drawn around the edges'of the deflector -and through the zpipe l2'to the dust chamber 16. The a-ir'passes from the exterior of :the. filtering cylinder 21 to the interior thereof, leavingthe dust deposited on the exterior surface of the cylinder from which it isrwiped by thebrush 24 whenthe cylinder isrotated. It will be seen from the drawings that the pipe 12 is of larger di-' with the cotton receiving chamber of the tank 15, and these points are of advantage as a state of vacuum or rarefaction is maintained in the chamber 1 1 which assists the falling of the cottonjorother salable waste.

1 have found that any improved apparatus is very efficient in operation as'it sepa .rates practically .all of the cotton orother salable waste from the air current, and the dust entrained therein, and during the separating operation there is no tendency 'for the cotton ;or waste to become curled or matted.

What I claim is: V

1. In an apparatus for the purposede-' scribed, the combination of a conduit through which a current of air is induced I lncludlng' a separating chamber of enlarged cross section having inlet and outlet openings in opposlteend Walls and a lateral outlet in a side Wall, a IGCB1V6I" communicating with the last said outlet, anda deflecting 7 .plate of less Width than the chamber ar- 7 ranged therein and'extending continuously from the inlet to said lateral outlet.

2. In an apparatus for the purpose described, the combination of aconduit ings in opposite end walls and a lateral out-r let in a sidewall, and a'defiecti ngo'plate arranged within. said chamberbetween the in- :through which a current of air is induced 7 ncluding a separat ng chamber of enlarged cross sectlon having inlet and outlet openthe combination of a conduit' through which a current of: air is induced r including a separating chamber ,of-enlarged cross section-having inlet and outlet'openlet and lateral outlet thereof, said plate being-of less width than the chamber: and

wider than theinlet'thereto and gradually which its widest end extends.

increasing in width toward said 'outletinto '4. In an apparatus for the purpose de scribed, the combination of a conduit through which a current of air is induced including a separatmg chamber of enlarged cross section having inlet and outlet gopenings in opposlte end walls and a lateral outlet in a'sidewall, and a'deflectingplata of less width than the chamber and of channel formin cross section, extending continuouslv from the end of the chamber in which 5. In an apparatus for the purpose dethe inlet is "formed to said 'lateral outlet, with its channel'towardthe inlet."

scribed, the combination of a conduit through which a current of air is induced including a separating chamber of enlarged cross section having inlet and outlet openings in its end walls and a lateral outlet in a side wall, and a curved deflecting plate, of less width than the chamber, extending between the inlet and lateral outlet thereof and having it concave surface toward the inlet highly polished.

6. In an apparatus for the purpose described, the combination of a conduit through which a current of air is induced including a separating chamber of enlarged cross section having inlet and outlet openings in its end walls and a branch outlet through its bottom, a receiving chamber arranged below and communicating with the branch outlet of the separating chamber, and a deflector within the separating chamber comprising a metal plate extending from the inlet end of the chamber to the branch outlet thereof, and having its side edges bent toward the inlet end of the chamber, the width of said deflector being greater than that of the inlet and less than the chamber in which it is arianged.

7. In a device of the class described, a conduit through which a current of air is induced, a separating chamber in said conduit and having a branch opening, the portion of said conduit leading to said chamber being of less cross section than said chamber and the portion of the conduit lead ing therefrom, a receiving chamber into which said branch opening delivers, and a deflector in said separator chamber for deflecting the fibers in the air current into the cross section of the separating chamber and having its exposed surface olished and increasing in Width toward the 1 ranch opening, the edges of said deflector being turned toward the incoming current.

8. In a device of the class described, a conduit through which a current of air is induced, a separating chamber in said conduit and having a branch opening, the portion of said conduit leading to said chamber being of less cross section than said chamber and the portion of the conduit leading therefrom, a receiving chamber into which said branch opening delivers, and a deflector in said separator chamber for deflecting the fibers in the air current into said receiving chamber, said deflector comprising a plate having its exposed surface polished and increasing in width toward the branch opening, the side edges of said plate being turned toward the anterior portion of the conduit, said plate being in cross section not less than the branch opening and anterior portion of the conduit but being narrower than the separating chamber and posterior portion of the conduit.

In testimony whereof I have hereunto set my hand.

WILLIAM GEORGE J OPSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0.