US2827667A - Bat reversing lint cleaner - Google Patents

Description

March 25, 1958 H. G. MOSS BAT REVERSING LINT CLEANER 2 Sheets-Sheet 1 Filed Jan. 4, 1957 ATTORNEYS March 25, 1958 H. G. Moss 2,827,667

BAT REVERSING LINT CLEANER Filed Jan. 4, 1957 2 Sheets-Sheet 2 INVENTOR BY W MEEQQQWW ATTORNEYS United States Patent BAT: EVERSLNG CLEANE i Hoyle G. Muss, Lubbock, Tex, assignor of. one-fourth to E; Moss, Sr., one-fourth to Ennis E. Moss, J12, and one-fourth to-James-Pt Moss,all of Lubbock, Tex.

Application January 4, 1957, Serial No. 632,452

8*Glaims: (Cl; 19-67) trash areremoved. Thistype of; lint; cleaner. is exemplh fiedimtheoneforming the. subjectof my pending patent application Serial No. 616,042, filed; October-15,1956;

Th gen a1 bie tfi he p es nt. invention .is; to pr videa a. lint cleaner having. two toothedcylinders 1 directly tangentially-related, .providing atransfer pointfo the; bat

fromone cylinderto the.other, thetransfer creating re; versalwithqespectto which side of the batiis presented to;the cleaning; instrumentalities associated with each-.cyh inder, the outer side of the bat on the anterior cylinder becoming the inner-v side ,on the; cylinder to whichthe; bat is transferred,

Anotherobject. of the invention is to provide a lint cleaner of the type, described, inwhich substantially identical cleaning treatment is accorded. to both sides ot the bat, and.the lintprevented from becoming centrifugally detached; from the teeth of the cylinders and lost with the-trash, throughtheprovision of barsextending transversely across each cylinder close to the point atWhich thecottonis received by the respective cylinders, one of the functions. of which bars is to seat the cotton firmly in the teeth of the respective cylinders, and the provisionof a set of gridbars for each cylinder onoppositesides of the diamettical plane through the axes ofsaid cylinders and at point. of cotton transfer, the grid bars vbeing;spa ced from the respective transversely extending bars andirom each other adequately close to give insuificient time for the cotton to become centrifugally detached.

A further object of the invention is to provide means throughout the. path of movement of the cottonthrough thecleaner, tosuppress spurious air currents Whichconflict and create turbulence with consequent nepping of. the lint.

Other objectsof the invention will appear as the following description of a: practical. and tried, embodiment thereof proceeds.

In thedrawing which accompaniesandforms apart of the following, specification:

Figure 1 is. a vertical section. through a lint, cleaner, embodyingthe; principles of the'invention;

Figure 2 is a side elevation of the resilient mount of thefeed bar, parts being broken away and parts; being shown insection;

Figure 'a is: a sectional viewtaken along the line 3.=3 fiF u Figure 4: is .a fragmentary elevational' view of the. re silient; mount: for, the; diverting-bar;

Patented Mar. 25, 1958 Figure 5 is a view in section, taken along the line;5.5. ofzEigure-Ae Referring .nowdn ;detail :to .tha.d rawings.1the illus rated embodiment of. the;subject1- invention, comprisesa. casing l3.haVlnggpaIa1l6l1SideS,;OHQQfJWhiCh lS- showma s fi beingzotherwise shaped gas shownn Journaled onbearings i them i llel, walls are; the principal ;ro ta tableelements of the ole aning systernt; The aupper; endr of that casingiie dapted Q h vea st nd rd conden rwon nytothen ype osficondenser-i which collects the cotton in bat-form; mount: ed .-,up on-it. Suceessivenpaced pairszof cooperatingdraw ing, rolls; 3; and 4;-are;rnounted in.t1 1e. casing:..adjacent its upper end. Cotton i11 batformaisrfed into thespaceibe: n-1 he l f th pp npair; with ut, v hi le a r, he at e t nd ng; downw r sing-z he-: p e. tw n he pa q c lss ndzpassins betw en h ircllsof the lower pa ni he. t e o ls. ing d iven:- at a lhish rr d than e olls he eqitsn ass raw-t eha thinn tr further thinned by passing through.the narrow space be w eni het ed he s n a cooperating corrug edfee 1 he eQr arT ha t mo h cur ed; ace-. t e

he- 11; loha; c ace e a slidably. ad; nced :by ithe rotajion ot; the roll;6-,.,its lower; end reduced 92 in e y; he; raw net eing feddownwardl cver t e nose 850i; he: eed. her 'nto. he-path f the; eeth of n n lyin epthed; ylindery. pnen are; of: th per phery; hi h IQM2 war th e e: ar so h t the bat is bent abruptly about the nose throughithe e n nd e ys; a ementith h eeth-.7 the latter continuously combing. the; fringe. off; of the; transcending bat and carrying it around; firstbeneaththelower face, IQ ofthe feed bar, andthen PSUthE;SQIiQ3-.Of grid bars 11.

The nose of thefeed bar acts as; a; purchasefor the partof the. batengaged by the rteeth of the-cylinder 9 relievingthat part, of the bat which eg tends upwardly;from the nosefrorn muchtofthe strain;incidentto the detachment. ofthe fringe. Inherently, the ba-tfis subject to thin sp ots, and. therefore, it cannot at: alltimes be uniformly tensioned throughout the; extentof its-width-betweenthe feed bar and feedroll 6, so that-ithe pull of the teeth tends totearnofi the thinner, and-less .firn 1ly;held pprtions of the bat. up into the region between the, feedrbar; and feed roll. The change in direction o fthegbataboutthe nose 8 resolves the pullingforceof thetecth; lliq-Cornponents, the onewhich pulls downwardly upon tha t; part of thebat. betweenthe feed bar androll 6.-being,-relatively small. The feed roll is resiliently. mounted; by means which will later. be described, so that it presses the bat yieldingly toward the face- 7 andcan, yield 'to the passage of. the thick places in the bat,so that; resistance tonorrnal descentofthebat will not ordinarily build up, to the point atwhich-thebat becomes torn by the pullof the teeth.

The lower face 16 oftthe feed barlies almostcontiguous to the teeth of cylinder 9 at itsforwardend, and slopesup slightly toward the rear, its. functionbeing tofirmlyset the cotton in the teeth. The lint'may beenvisioned:as a loophavingits bight at the foreembracing thetoo th, and having free end portions trailing towardlhe rear. The free end portions have very little weightunless loaded with a mote or other trash particle, so that itcleanqthey do not stand out very far under centrifugal force, but, if they are so loaded, they may fly out as the y emerge from beneath the feed vbar'and from beneath; the grid bars, with suificient force to beejected from .the teeth andlost with the trash. This statement is a simplificationpt: what actually goeson, for the-lint fiber as a rule does. not act independently, but-in coherence withother fibers, forming a lock. Thelowenface lfl of thefeed'plaje is madeto flare-"aha small? angle away from-the periphery of the the teeth.

promoting nepping of the fibers.

mazes toothed cylinder so as to release the trailing ends of the lint fibers gradually, rather than have them fiy out suddenly, with the risk of the loops becoming detached from The main function of the grid bars is, of course, to comb the centrifugally extended lint and remove the motes and trash adherent thereto. Since the extended ends of the fibers strike the convergent edges of the grid bars quite impactively, the trash is thrown off through its inertia.

Another function of the series of grid bars is to keep the cotton from becoming detached 'centrifugally from the toothed cylinder while being cleaned. For the performance of this function the grid bar adjacent the feed bar Sis spaced sufliciently close to the feed bar to take face of each grid bar adjacent the toothed cylinder flares away from the latter to control the gradual release of the trailing ends of the loops of lint.

It has been found in practice that most of the trash on the side of the bat exposed to the grid bars 11 is removed by the anterior bars of the series, but that a small quantity of subsurface trash is shifted by pressure of the grid bars to the inner side of the bat. It must be kept in mind that the bat is quite thin. This trash will, therefore, be on the outside of the bat when the latter is reversed by its trans fer to the complementary toothed cylinder 13, and in position to be removed by the grid bars associated with the latter cylinder.

An arcuate shield 12 hugs the first toothed cylinder 9 from a point adjacent the end of the series of grid bars 11 to a point adjacent the region of substantial tangency of the cylinder 9 to the cylinder 13. This shield is sufficiently close to the periphery of the cylinder 9 to keep the lint seated in the teeth. until the point of transfer is reached. Since the arc of the surface of cylinder 9 which said shield circumscribes is loaded with cotton, this cotton fills the space between the-shield and cylinder and blocks the passage of the normal circumferential air flow about the periphery of the cylinder which is engendered by the rota tion of the cylinder; The shield 12 progressively diverges slightly from the periphery of the cylinder 9 toward the transfer point, so asto permit the cotton between it and the cylinder '9 to open up somewhat as it approaches the dotting point in order to facilitate the doffing.

It will'be noted that the casing 1' includes an arcuate shield 14 adjacent the shield12, which covers a portion of the periphery of cylinder 13 which approaches the transfer point. The part of the periphery overlain by the shield 14'is unloaded, nevertheless, it isinstrumental in cutting off the circumferential air flow about the part of the A v a faster moving cylinder are seated deep in the teeth of the other cylinder and not in the path of the faster moving teeth. The ends of the loops that do stand out in the path of the faster moving teeth have been combed out straight by the grid bars, and afford no hold for the faster moving teeth. Only when the slower cylinder is heavily clothed with bat, is it possible for much lint to be removed mechanically. Lint cleaners, such as that of the "present invention, which are designed to do a good job upon dirty cotton are made to work upon a thin bat and at high speed, so. that each tooth combs off only a small number of fibers.v

The effective transfer of these makes the air jet indispensible. t

In order to provide for this air jet, the shields 12 and 14 are spaced apart attheir convergent ends to form the mouth 20 of a longitudinal nozzle defined between the spaced bafiles 21 and 21', which nozzle is directed toward the point of lint transfer; The air jet through said nozzle is induced by the vacuum at the surface of the cylinder'13 beneath the shield 14, the velocity of the cylinder 13 carrying thevacuum ahead of the mouth of the nozzle 20. Since the cylinder 13 is moving faster than the cylinder 9, the velocity of the air jet exceeds the peripheral speed of the cylinder 9, the jet overtaking the lint on cylinder 9, loosening the cotton in the teeth of the latter cylinder so as to be readily transferred by the teeth of cylinder 13; The transfer is thus effected by a single air jet tangent to both cylinders, and therefore, free from turbulence, in fact having a further combing action upon the'lint; The air jet itself by blowing through and against the lint during the short interval in which the lint is air suspended, exerts cylinder that it covers, since -its lower end terminates in the part 50 of the doifer chamber 49. which lies adjacent the'deep' pockets 16 between the brushes 17 of the doifer 18. These pockets are under vacuum, due to centrifugal displacement and consequent. attenuation of the contained air, which vacuum is not satisfied by induced air through the nozzle 45, due to the rapid rotation of the dofier. Little or no air, therefore, enters beneath the shield 14 from this source, and it prevents the cylinder from entraining air along the. quadrantal are that it covers. If the circumferential air flow toward the transfer point attending both cylinders were not suppressed by the respective shields 12' and 14, the air cu'rrentswould conflict in the region of the point of transfer, creating turbulence, thereby However, an air jet is essential at the transfer point between the two .toothed cylinders, to assist in the transfer.

There is, of course, clearance between the teeth of the a further cleaning action upon the lint. If the problem of prevention of nepping were ignored, the circumferential air between the cylinder 13 and shield '14 would produce a jet adequate to elfect the transfer of cotton from one cylinder to the other without the-necessity of providing the tangential air jet at 20. V

Reference has been made to the feed roll 6 being resiliently mounted. Figure 2 shows the structural nature of this mounting, it being understood that the means which are shown in Figure 2 are duplicated at the opposite parif allel walls of the casing and at the opposite ends of the feed roll. The brackets 22 and 23 are bolted to the casing walls, the slots in the pockets permitting adjustment. An arm 24 is pivoted at one end to the bracket 23, which at its other end carries the bearing in which the feed roll is journaled; The driving means (not shown) obviously must-be coaxial'with the axis about which the arm ;24 pivots. A bar'25 is fixed to the arm 24 at a point between its-axis of swing and the axis of the feed roll. When the bar swings up, the feed roll swings over toward the feed bar 5, The bracket 23 has an car 26, through which an adjusting stud27 is threaded. This adjustability determines :the minimum distance between the feed roll and feed plate. The'bracket 22 carries a housing 23 containing a spring 29. The housing has oppositely aligned slots 30 and 31, through which the bar 25 extends,

passing above the spring 29. When the feed roll is pressed away from the feed bar by an intervening wad of cotton in the bat, the bar 25 presses down upon the spring. The

A diverting bar 32' extends lc mgltudinally of the cylinders 9 and 13, positioned in the trough defined by the adjacent peripheries of the cylinders at the side of the point of cotton transfer opposite the mouth 20 0f the air jet nozzle. Said diverting bar-has a nose 33'fac ing the'point 'of transfer, said nose being defiected 'so as to liequite close to the cylinder 9 for the purpose of diverting such cotton as maybe freewhen it reaches 'said -nose, toward 7 the teeth of cylinder 13 and away from the teeth of cylinder 9. The 'bar32 has a'lower face similarly related to the toothed periphery of -cylinder 13 as the face 10 offeed bar Sisto cylinder 9, and.having.. the samefunctions.

The diverting b'ar 32""is.resiliently'mountediso as to yield to the resistance of relatively. thick wads of cotton which may be transferredfrom..cylinder 9to cylinder 13 and attempt to passbetweenzthe bar. 32 andthe cylinder 13." The structure constituting. the resilient mounting illustrated in Figures 4'and 5, which'show that the-bar32 is secured to. the fiangediendmffa fitting 54, the .opposite end of whichis formedwith a socket receivingpne.end ofjaspringsfi, The oppositeendofwhich spring surrounds. a retainingboss 57 projecting, from, the. slotted bracket 58; secured to one of the parallel sides rofthe cas: ihg, The fitting 54 includesan upwardly extending curved arm 59 whichistpivotedluponth'e .stud160, secured tothe side of the casing. Saidstud is mounted in a verticfal'plane whichembraces the nose. of the diverting bar. The. arm.5.9 carries-an. adjustable. stud 61.engag eable,with a.;stop, 62.; also. fixed to, the, side wallof'the casing. The .modeof operationislobvioush When, thewadattempts to, pass through the restricted space between. the. lowerface. of the diverting bar 32' and the peripheryof cylinder.13',lsaid bar is pushed backward against the bias of the spring 56 and. atthe same time, rocked slightly upward through an arc whichis substantially concentric with theperiphery of cylinder 9. The upward arcuate. movementis inconsiderable and of no importance to the-invention, the. locaf tionof the stud 60 at a point eccentric with respect to the axis of thecylinder. 9 being a matter of. convenience,

The casing 1 is curved to form a shield 35 substantially concentric to the periphery of .cylinder 9 andcloselyem: bracing the unloaded. arc of said cylinder for a distance extending from the divertingbar 32 to a point. adjacent the feed roll 6. In the form shown, said shield issecured 'to the. diverting bar .32, and therefore, is resiliently in:

dependently of. the rest of the casing so as to give with the. movement of said bar. A- portion of the air from the jet. entering by way of the nozzle 20 passes beneath the bar 32, but part of said air jet discharges through the space between the shield 32 and the cylinder 9 into that part of the casing in the vicinity. ofthe pairs of drawing rolls 3 and 4. A' flashing 36 is provided. between .thecasing wall and feed roll, including a yielding portion. 37 which wipes against the feed roll, which serves the primary purpose of sealing the air which might come around the cylinder and course it directionallytangent to the faces of the. feed roller 6 and the saw 9. Actually the bar, 32 havingits forward nose 33 set very closeto the cylinder 9 scalps the air carried by cylinder 9, coursing it downwardly in a circular, path following the cylinder 13. It too wouldserve the purpose of seating the cotton better into the teeth of cylinder 13.

Returning to the discussion of the diverting bar 32, this member is positioned anterior to asecond series of grid bars 38, the spacing of which withrespect to thebar 32 and to each other is such asto keep the lint firmly fastened in the teeth of the cylinder 13. The grid bars operate upon the face of the bat opposite to that which was contacted-by thegrid bars 11,. and removes practically all of the remaining trash from the lint. The trash thrown oh by the grid bars 38'gravitates into a trash pan: 39 formed as. a lower part of the casing, and which is con.- nected' to a suction duct, not shown. The trash removed by the grid bars 11 falls'upon a trash belt 40, which carries the, trash outside the casing and may deliver it.to the suction duct that serves the trash pan.

The toothed. cylinder 13 is underlain by an arcuate shield 41, which lies sufficiently close to said cylinder tomaintain the cotton seated in the teeth of the cylinder and by virtue of the presence of the cottonbetween said shield and the cylinder, to block the circumferential flow of air. to the dofiing'point. 42. Theshield 41 atone-end is joined to apartition 43', which confines the trash from the grid. bars 38tothat part" of the casing to. the

right. ofsaidpartition, as viewed in Figure 1. The opposite end of the .shieldis' formedwith a bafiie 44' in, a plane tangent to, the cylinder 13. at thedofling point, said bathe constituting one side of an atmospheric air nozzle 45', drawing. clean air from that part. of'the casing to the leftofthe partition 43, theopposite side of'the nozzle being asimilar bafile 46. parallel to the baflle 44. The baflie 46 is formed at the anterior end of a shield '47 which underlies, the dofier 18.

Said dofler, as shown, is of the conventional'brush type, being a drum provided about its periphery witha circumferential series of longitudinally extending spaced brushes 48; forming the deep pockets 16'previously referred:to, andwhich are continuously undersuctiomdue to centrifugal displacement of the contained air. The adjacent ends ofthe shields 14: and 41. are so spaced as to leave eXposed'an appreciable portion of the periphery of'the cylinder 13; to that part of the casing which defines the doffing chamber 49; of which chamber the shield'47 forms a boundary wall. The. actual dofiing point isat the intermediate part of this exposed portion. The spacebetween the shield 41 and the cylinder 13 decreases in spacingslightly so as to restrict the movement ofjair generated .by. saw 13' from entering the doffing point 42. As the cotton leaves the adjoining faces of shield 41 and 45, thecotton opens abruptly and is easily dotted.

The vacuumpersisting in the pockets 16 is the moving force that induces an air. jet through the nozzle 45. Since the peripheral speediof the dofier is greater than that of the toothed cylinder 13, the air jet overtakes the cotton on the, teeth. of cylinder. 13 and materially assists the brushes in. taking oit all of the lint. yondthe point of tangency, is diverted fromitsstraight course, to, how in a path circumferentially of the d'olfer, but outside of the path of'the ends of; the brushes, due to centrifugal, exclusion from the. pocket 16, and" said circumferential air flow is the vehicle which carries the lint towardthelint dischargeduct 51. shield 47 has an adjustablegate 52 at its posterior end, whichis ordinarily adjusted with respect to the brushes so-as to direct the circumferentially traveling air flow toward the lint duct and keep lint. from following the dofier around within the shield 47towardv the dofiing point. The wall. of the doffing chamber is provided withan air intake opening 53'near its .top, andpreferably above the lint duct. The circumferentially diverted air jet entrains auxiliary air through said air intake 53,-the downward direction of the entrained air assisting in conducting the lint into the lint duct without creating turbulence in the dofii'ng chamber. The air intake 53 also provides an emergency outlet for the cotton, should some eventuality arise that may interrupt the flow of cotton from the lint duct, resulting in the cotton backing up inthe dofling chamber. When this happens, and; the circumferential air flow can no longer exhaust into the lint duct, it selectively reverses itstnormal fiow path. and discharges the lint through the air intake 53' into a pan, not shown, or other receptacle provideditoreceive it.

While I have in the above description defined a practical embodiment of the invention, it will be understood by those skilled in the art that the specific details of construction and arrangement of parts, as shown, are by way of example and not to be construed as limiting the scope of the invention.

What I claim is:

1. Cleaner for lint cotton of the type'adapted' tobe supplied with cotton in the form of a bat, comprising 'a pair of toothed cylinders one above the other arranged tangentially and driven in opposite directions, the lower cylinder having greater speed whereby cotton is transferred directly from the upper to the lowercylinderatthe point of tangency, the faces of the bat being reversed incident to the transfer, means anterior to the upper cylinder for drawing the supplied. bat and feeding the thinned lend thereof to'said upper cylinderin the upper arc ofiits path The underlying of rotation, said means including a feed bar'havingt a face thereof positioned suflicien'tly close to the upper cylinder .toseat the cotton on-the teeth of said upper cylinder, a nozzle between said cylinders for directing a jet of air. substantially tangent to said cylinders at thepoint of transfer for effecting transfer. of the cotton, a diverting bar between said cylinders on the side of the transfer point opposite said nozzle, said diverting bar new having a portion sufi'iciently close to said upper cylinder ciently. close to the respective feedfbars and diverting bars and to one another to prevent the cotton becoming a detached from the teeth of the respective cylinders.

2. Cleaner for lint cotton of the type adapted to be supplied with cotton in the form of a bat, comprising a 7 pair of toothed cylinders positioned one above the other with their axes substantially in a common vertical plane, arranged tangentially and driven in opposite directions,

the lower cylinder having the greater peripheral speed thereof, a nozzle between said cylinders for directing a jet of air substantially tangent to said cylinders at the point of transfer for, etfectingtransfer of the cotton, a

diverting bar between said cylinders on the opposite side of said vertical plane to said feed bar, said diverting bar having a portion suificiently close to said upper cylinder to divert cotton in the course of transfer while detached from said upper cylinder, away from the latter and tot ward said lower cylinder, said diverting bar having a lower face positioned sufficiently close to said lower cylinder to seat the cotton in the teeth of said lower cylinder, and upper and lower series of grid bars about the peripheries of the respective upper and lower cylinders, following said feed bar and diverting bar in the direction of rotation of the respective cylinders, said grid bars being successively spaced sufficiently close to the respective feed bar and diverting bar and to each other to prevent the cotton becoming detached from the teeth of the respective cylinders.

3. Cleaner forlint cotton as claimed in claim 2, said diverting bar being'resiliently mounted so as to yield to an intervening wad of cotton on said lower cylinder, the lower face of said diverting bar being upwardly tangent in a forward direction with respect to the adjacent periphery of said lower cylinder to permit wedging entry of the wad beneath said feed bar.

4. Cleaner for lint cotton as claimed in claim 2, including upper and lower arcuate shield means about adjacent peripheral arcs of said upper and lower cylinders, said shield means extending to the mouth of said nozzle .and lying close to the teeth of the respective cylinders for suppressing the entrainment of peripherally-flowing air by said shielded peripheral portions incident to the rotation of said cylinders, the shield means about the loaded are preventing passage of air between'itself and the upper cylinder, :and the shield means about the unloaded arc maintaining vacuum between itself and the peripheral are that it overlies, which vacuum induces thelair jet through said nozzle. 7 a

- 5. Cleaner for lint cotton of the type adapted to be supplied with cotton in the form of abat, comprising a ma upper and lower toothed'cylinders mounted in saidcasing with their axes substantially -in, a vertical plane, said cylinders' being directly tangent, the line of t which, said bat, thinned by the drawing, passes, one of saidlfeeding instrumentalities being resiliently mounted to yield with respect to the other. for holding said bat and letting pass bat areas of variable thickness, a first series ofspaced grid bars following said feed bar, arranged inoperative proximity to said upper cylinder, a

nozzle at the forward side of said transfer point for directing an air jet tangentially across said transfer point for effecting transfer of the cotton, a diverting bar at the opposite side of said transfer point shaped and arranged to divert the lint detached from the upper cylinder away from that cylinder and toward the teeth of the lower cylinder, said diverting bar having a lower face so positioned as to seat the transferred lint in the teeth of the lower cylinder, said diverting bar being resiliently mounted to yield away from said lower cylinder responsive to the intrusion of thick wads between said diverting bar and said lower cylinder, said casing being formed as a shield about the periphery of said upper cylinder, said shield extending from said diverting bar to the wall of said casing adjacent said feed roll, thereby to prevent the entrainment of peripheral air along the unloaded are covered by said shield, and a baflie between the wall of said casing and said feed'roll to preventthat part of the airjet which'exhausts through the space betweensaid unloaded arc and shield from reaching the exposed bridging portion ofthe'bat between said pairs of feedrolls.

6. Cleanerfor lint cotton of the type adapted tobe supplied with cotton in the form of a bat, comprising upper and lower toothed cylinders with their axes substantially in a vertical plane, said cylinders being directly eluding a feed bar at one side of said vertical plane for seating the feed cotton in the teeth of the upper cylinder, a diverting bar above the second cylinder at the opposite side of said vertical plane for seating trans ferred cotton in the teeth of said second cylinder, a series of lint cleaning bars for each cylinder following the respective feed bar and diverting bar in the direction of,

rotation of the respective cylinders, a nozzle at the side of said transfer point opposite said diverting bar for directing an air jet across said transfer point to detach the lint from the upper cylinder, and means peripherally shielding arcuate portions of both cylinders adjacent the mouth of said nozzle to suppress conflicting currents that would cause'turbnlence in said airjet. V

7. Cleaner for lint cotton as'claimed in claim 6, including a doffer tangent to'said lower cylinder, said doffer being of the type creating a vacuum in aregion adjacent the dofiing point, a nozzle at said dofiing point for directing an air jet induced by said vacuum tangentially across said doifing point to assist in the doffing, the shielding means for the lo'wercylinder extendingto the region of vacuum whereby vacuum is drawn at said transfer point which induces the air jet from the first mentioned nozzle. 7

8. Cleaner for lint cotton oftthe type adapted to be continuously supplied with cotton in the form of a bat, said cleaner including a casing housing the following instrmnentalities, a pair of tangent oppositely rotatable toothed cylinders, the point of 'tangency being the point 9 at which the hat is transferred and the exposed side thereof reversed, means for feeding the bat to one cylinder, means for dofiing lint from the other cylinder and cleaning means in operative proximity to both cylinders, a nozzle at one side of the transfer point for directing an air jet upon the lint at the point of transfer to assist in effecting the transfer, a diverting bar at the side of said transfer point opposite said nozzle for diverting lint from the cylinder from which it has become detached and seating it in the teeth of the cylinder to which it is being transferred, means for resiliently mounting said diverting bar comprising a pair of similar arms pivotally mounted coaxially at opposite sides of said casing, each terminating at its opposite end in a block, means securing said diverting bar to the forward ends of said blocks, the opposite ends being socketed, brackets fixed to said casing at opposite sides, bosses carried by said brackets axially aligned with said sockets, springs having their opposite ends respectively in said sockets and surrounding said bosses, biasing said feed bar toward said cylinders, stops fixed to said casing at opposite sides, and adjustable studs carried by said arms engageable with said stops for determining the minimum distance between said diverting bar and said cylinders.

References Cited in the file of this patent UNITED STATES PATENTS 1,063,985 Lichtenstein et al June 10, 1913 1,963,262 Deems June 19, 1934 2,704,862 Moss Mar. 29, 1955 2,747,235 Wallace May 29, 1956 2,755,512 Moss July 24, 1956

Images