Патент USA US2406641код для вставки
Aug. ' 27,‘ 1946. ' I ‘A. J. sIéNO'RE'r 2,405,641‘ » vAPPARATUS FOR PRODUCING SYNTHETIC YARN 2 Sheets-Sheet 1 Filed Dec. 28, 1942‘ _ "5%6. ' INVE_NT_OR ' _ _. AZb'eriJJzynorei BY a ' I: I M ATTORNEY - ‘ p ' “- I.‘ , Aug. 27, 1946. A, J'; SIGN'QRET 2,406,641 APPARATUS FOR PRODUCING SYNTHETIC YARN Filed 066. 28, 19,42 ' 2 6116616411666 2 I ‘INVENTPR AlberlJJzgnoret ‘~ Patented Aug. 27, 1946 2,406,641 UNITED ’ STATES’ PATENT OFFICE 2,406,641 7 APPARATUS FoR PRODUCING SYNTHETIC ' YARN ' Albert J. Signoret, 'New’York, N. Y., as'signor to American Safety Razor Corporation, Brooklyn, N. Y., a corporation of Virginia ‘ Application December 28, 1942, Serial No. 470,350 3 Claims. (Cl. 19-129) 2 My present invention relates generally to the tute this web as a sliver. A plurality of'these reconstituted slivers are again subjected to at production of a yarn from ?laments and more particularly from synthetically produced n12. ments. _ i tenuating and compacting treatment until the * ’ desired yarn is produced. My invention will be disclosed herein as applied It has been suggested that the process now employed for producing yarn from synthetically to the production of yarn from arti?cially pro duced ?laments. This is not to be construed as produced ?laments could be simpli?ed and the indicating ‘that my invention is not capable of apparatus required could be materially reduced practical application in the production of yarns if the guillotining operation were performed after from natural ?bers. Therefore my invention is 10 the formation of the web and during and as part not to be construed in a limited sense because of of a gilling operation and that this could be ef its manner of disclosure unless called for ‘by the fected by associating cutting edges with the faller express language of the claims. ' bars which form part of the gill vbox. ' synthetically produced ?laments are formed by One of the objects ofv my invention is an ar extruding‘ a viscous mass through small openings 15 rangement whereby cutting edges can be asso; of spinnerettes into ?xing baths and the like. ciated with faller bars of the gill box to cut the When formed they are wound on bobbins. A web into short staple lengths. This I attain gen number of these ?laments are then brought to erally by positioning cutting edges below the top gether to form rope-like‘ lengths which may be wound into compact form such as hanks to sim plify handling. The term “hank” will herein be employed generically to refer to these lengths and of the needles of the faller bar fora distance 20 so that the cutting edges will cut through the web during the normal throw or movement of the faller bars. . not specifically as referring to the particular Another object of my invention is the provi compact formation they may be given. of an arrangement whereby the aforemen In accordance with the present practice the 25 sion tioned cutting operation be performed so as to hanks are each subjected to a guillotining opera a?ect‘to a minimum degree, the integrity and tion which chops them intov short stapleof a continuity of the web. This I attain (a) ‘by em length suitable for subsequent processing. These short lengths are received in a receptacle or con-, tainer to form a mass. This mass is then sub 30 jected to a treatment by appropriate apparatus . to form the sliver of extended length and of a \ desired thickness such as of, the order of 1". The short lengths which comprise the sliver are ploying cutting edges whose lengths are mate rially less thanethe width of the Web and where a plurality of edges are associated with a faller, bar, to space these edges across the length there of, and (b) by so staggering the cutting edges that as the web progresses the cutting is per positioned lengthwise, being multiplied in the 35 formed by each faller bar for short width posi tioned laterally of the cuts effected by the adja cross section thereof to give the required or de-> cent faller bars. sired, thickness and being multiplied lengthwise - ‘ A further object of my invention is an asso ciation of cutting edges with the faller barswith- ‘ A plurality of slivers arranged laterally of ‘each other are then united to form a web and this 40 out requiring any changes or modi?cations in the latter. This I attain in one arrangement web is subjected to preliminary gilling and atten by securing means attachable to a conventional uation in an apparatus termed a gillbox, which faller bar. 7 » unites the slivers into a web and attenuates that thereof to give the extended length. ' ‘Cutting edges have a relatively short life and web in the direction of its length. The gill box comprises what are termed faller bars which 45 require replacement frequently. It is a further. comb into parallelism the short. lengths of which object of my invention that the means for secur the web is comprised. ing the cutting edges to the faller bars be sepa rate from the cutting edge itself to permit re , . . The attenuated web is then fed through the restricted passageway of atrumpet to ‘form’ a . placement at will of the latter without requiring sliver. A plurality of these reconstituted slivers 50 replacement of the former. in lateral relation are then subjected to a further gilling' operation in what may be termed an “in For the attainment of these objects and such other objects as may hereinafter appear or be pointed out I illustrate embodiments of my inven termediate” gill box whereby they are formed’ into a web which is combed,~ attenuated and com-1 pacted as in the preliminary gill box to- reconsti tion in the accompanying drawings, wherein: 55 Figure 1 is a perspective view of a conventional 2,406,641 3 gilling apparatus embodying one form my inven tion may take; Figure 2 is the longitudinal section through the apparatus of Figure 1; Figure 3 is an enlarged elevational View of a Cfl fragmentary section of one of the faller bars of Figure 1 engaged through the web; ‘ ' Figure 4 is a section on line 4-4! of Figure 3; Figure 5 is a section on line 5-5 of Figure 3; Figure 6 is a diagrammatic showing of one 4 and 1 l of this conventional apparatus is a mecha nism comprised of a series of taller bars each of which is constituted of a bar l5 from which pro jects upwardly a row of needles it spaced apart across its length, the needles tapering to a point I‘! at their upper ends (see Figure 3) . rl‘he length of the bar It and of the row of needles is at least equal to the width of the web W for reasons that will be understood as this descrip~ Vtion proceeds. These faller bars travel between the two sets of rollers‘ Iii and H in a path that can best be de Figure '7 is a view similar to that of Figure 3 oi‘ , . ‘scribed as an extremely ?at oval whose long a modi?ed embodiment of my invention; dimension is in the direction of feed of the web. Figure 8 is a section taken on line 8;,8 of The fallcr bars travel in their elevated position Figure '7 ; ‘of Figure 1 from a point adjacent the feed rollers Figures 9 and 10 are perspective views of the to a point adjacent the delivery rollers where blade and of the blade holder of Figure 7 respec they are dropped by mechanism not shown, to a tively; lower level and their direction of movement re Figure 11 is a view similar to Figure 3 showing versed until they again arrive in the vicinity of another modi?ed form of holder and blade; the feeding rollers I!) where they are suddenly Figure 12 is a horizontal section through projected upwardly into their starting position in Figure 11; . the upper level. This comprises the cycle of travel vFigures 13 andl/l show- a modified arrange of each faller bar along a path which has been ment wherein groups of faller bar needles are referred to as a ?at oval and this cycle is repeated spatial arrangement of cutters on the taller bars; replaced by cutters; Figures 15, 16 and 17 are perspective views of embodiments wherein the cutting edges are formed integral with the means for securing these continuously for the gilling operation. The faller bars follow each other in this path in timed rela tion and in a uniform manner. _ In their upward projection, the needles [6 are edges to the faller bars; and V Figure 18 is a fragmentary view of a detail on caused to penetrate the web as shown in Figure 3 so that in their advance toward the delivery an enlarged scale. rollers H, the needles comb the short staple lengths into parallelism. Figure 1 shows a detail. In Figures 1 and 2 I show a conventional gilling apparatus comprising feeding rollers [0 at one end and'delivery rollers}! at the other end, the rollers H being positively driven at a higher peripheral velocity than that of the rollers 10, a relative velocity of the order of ?ve to one being a conventional practice. It has, already been stated that in that conventional practice a plu rality of slivers as shown in Figure 1 are fed to the delivery rollers to form the web W and that The apparatus thus far described is typical of , theseries of gill boxes employed for the perform ance of the successive gilling operations. The process suggested for the simpli?cation of the present practice contemplates that the con tinuous ?laments united to form hanks or slivers also of continuous length, be fed directly to the feed rollers iii of a gill box and without any re duction of that continuous length into short staple as a result of the guillotining operation performed upon the hanks the web which isso formed, will courses. conventional practice may be of the exemplary tended length because they have not been sub In accordance with this simpli?ed process, S in 3, Figure l are the hanks or slivers of extended be comprised of short staple lengths which in a ~: length and comprised of ?laments also of ex order of 4"’ to 6". It will now be added that the two aforementioned sets of rollers are conven tionally spaced apart a distance of the order for jected to’ a guillotining operation. This suggested process contemplates further that these slivers S be formed into a web and that simultaneous with example of 12". In this practice the short staple 50 the ‘gilling operation the web so formed be cut length of which the web length between the two into short lengths during the process of gilling. sets of rollers is comprised, will fall into these It contemplates further that this cutting be per three categories: One group of these short staple formed by cutting edges associated with the taller lengths will be gripped and controlled by feed bars and my invention is directed to a manner of 55 ing rollers iii; a second group will be gripped association of cutting edges with the gill bars and controlled by the delivery rollers l l; and the whereby this can be e?ected. remaining short lengths will form a third group ‘In Figure 3 I show a fragment of a faller bar which are free of both sets of rollers but will be to illustrate one arrangement whereby a cutting constrained to .move under the control of factors edge may be associated therewith in accordance such as adhesion and the like. Because of the (it) with my invention. This arrangement comprises eccelerated peripheral velocity of the delivery a blade holding member 25 and a blade 26 to be rollers l l the ?rst mentioned group of short staple detachably held thereby with its cutting edge 21 courses will be advanced at an accelerated speed in predetermined relation to the pointed ends I‘! relatively ‘to those of the second mentioned group of the faller bar needles. This holder is illustrated and the staple courses which comprise the third 55 as made of sheet material. In Figure 5 it is shown mentioned group will respond and more or less as comprised in horizontal cross section of the casually, to the control of factors such as ad end wall 25', side walls 252 and the ?anges 253 hesion imposed upon them by the movements of extending inwardly from these end walls, for the the‘ other two groups. This action attenuates the. 1 reception of a group of adjacent faller bar needles Web. , The attenuated web is delivered by the rollers ll into the restricted passageway of trumpet 20 which compacts the web to the thickness of a sliver. ' _ ' Positioned between the ‘two sets of rollers I0 within said walls. For reasons that will shortly appear, it is desirable that the material of which the holder 25 is made or its construction or both be such that the parts of which it is comprised yieldlto some extent. The holder is illustrated as‘ 2,406,641 open at its top and bottom‘so that it can be passed over a group of needles, the spacing of the walls and ?anges of, the holder being such with relation tothe thickness and spacing and tapered forma tion of theneedles that as the holder is forced . down over this selectedgroup of needles, a grad uallyincreasing frictional engagementi'will be ' ‘effected until the'holder reaches its ?nal position of‘ Figures 3 and 4 wherein it seats upon the top web by the feed rollers “for the distancefrom a to cm Figure 6. The effect of this'is that the ' ‘?laments composed in the web width marked “1” across the top in Figure 6 will be cut into short staple lengths which correspond‘to'the distance from a to 0 except that the ?rst cut will be made > in the narrow width at the extreme left in Figure 6 and the succeeding cut will be made in that width in the next cycle; the adjacent width which of the bar 15. This arrangement serves to‘ locate 10 is numbered “2” at the top will be cut at the line .theholder 25 on the needle bar [5. . . numbered 14 in the column of numbers at the left The blade 26 is illustrated in Figure 3 as gen-v of Figure 6 and again in that width during fol erally' rectangular and bevelledrat its upper edge . lowing cycles and atthe corresponding line. As to provide the cutting edge 21 which is preferably a result of all this, the ?laments of which the inclined as will be pointed out hereinafter. Its web is comprised are cut into short staple courses . dimensions are such that its side edges 26’. and 262 can be receivedbetween side walls ‘1252 of the holder with its cutting edge 21 exposed above the ' of a length between two succeeding cuts in any one of the aforementioned narrow widths. The pattern of Figure 6 assumes that all parts of the top of holder 25 when the blade is - in its web are moving at a uniform speed which has ?nal position of Figures 3,,and 4'. The blade is 20 been already explained is not the fact. The pat inserted in the holder by being forced down in tern however does correctly represent the cutting between end wall 25' thereof and the needles l6 operation because that is performed upon‘ the which are received therewithin; The. objectives web atfa point adjacent the feeding rolls and which I desire to attain are these: that the grip where all the ?laments of which the web is com of‘ theholder 25 about the needles be sufficient prised are under control of the feed rollers and to secure the holder thereto and thatthe in are fed at the peripheral velocity of those rollers. serted blade increase this grip to a point where Upon an analysis of the pattern of Figure 6 it accidental release of either the holder 25 or the blade 26 will be reduced to a minimum. It will be pointed out that in this arrangement, the blade acts as a vlocking wedge to increase the secure ment, of both blade and holder. This arrange ment permits of a replacement of the blade with out'replacing the holder 25. The blade can be removed merely by forcing it upwardly out of the holder. To facilitate this, I show an opening 28 in holder 25 (see FiguresB and 4) and a regis trating opening 29 in the blade to admit a tool point to facilitate removal of either or both. 7 A feature of my invention is the limited length of the cutting. edges relatively to the width of the web and the manner of their arrangement, whereby the’ ?lamentsof which the web is com prised, may nevertheless becut into short staple lengths for the full'width of the webvwithout howeverbreaking the continuity of the web. In Figure 6 0f the ‘drawings I show one arrange ment whereby this may be e?ected. The distance from a to b represents the width of the web which is being fed in the direction of arrow X andthe distance from a to 0 represents that Will be understood that any speci?c faller bar such as that numbered 1 in the column at the left will not comb the width which it cuts but that inch width will be combed by all the other faller ars. In addition to the other bene?ts that result by way of simpli?cation of the process, the manner ' and time in which the cutting is performed pre sents these additional advantages. The ?laments before being out are maintained more or less in parallelism by the fact that they are of extended length. Therefore when these ?laments are out into short staple courses they will generally al ready be in a position of parallelism and ‘the movement of the whole mass which comprises the Web will tend to maintain that relation. ~ This is particularly so because in' accordance with the staggered arrangement of the‘patterns such as shown in Figure 6, none of the short staple courses in any of the widths numbered at the top' will have their ends in registration with those in any other width. It will be understood that the prac tical application of my invention may be effected by patterns which vary from that shown in Fig ure 6 andthat this pattern is merely an exem length of the web which is in opposition to the plary one. ‘ active faller bars at any moment and the hori zontal lines numbered successively #1 to #16 For these reasons'it is believed that the comb may be stated to be a diagrammatic representa 55 ing operation will be a vsimpli?ed and more effec tion of the faller bars and the shorter heavier portion of each line to represent the cutting edge ~ vUpon viewing Figure 4 it will be observed that the holder ‘25 is so positioned on the needles with associated with each fallerbar.‘ It will be ob. served that the cutting edges 21 areshown in this reference to the direction of movement of the web that‘during» the upward movement of the pattern as distributed one to each faller bar and faller bar the pressure of the advancing web will as positioned differently laterally on the respec tend to hold the blade against the needles and tivebars to give the staggered pattern of Figure 6 tive one. ~ ‘ _ ' thereby assist in rigidifyingv the cutting edge and that the projection of all the cutting edges thereof so that a clean- and sharp out ‘will be of the pattern of Figure 6 on a'single line gives 65 effected. ‘ the resultant ‘of-a cut for the fullwidth of the web without substantialoverlap; V V . ' ' In Figures 7 to 10 inclusive I show a modi?ed arrangement wherein the holder 30 is shown in Figure 10 and the blade 3| shown in Figure 9. which is repeated continuously as the web is fed The holder of Figure 10 resembles the holder of through the gill box. As a result each cut is effected in the particular example of Figure 6 70 the embodimentof Figure 3 in that it is made vof any preferred or desired material such as through T16 of the width of the web and. in that metal and is comprised of a wall 30'- for the full narrow width is repeated once' for each ‘cycle Width of the holder, opposed end walls 302 and _ The pattern of Figure 6 shows a complete cycle at a, distance from the previous cut in that ‘nar-_ inwardly directed ?anges 33' to receive there row width that corresponds to'the feed of the 75 between a group ofneedles. The holder com; 2,406,641 prises however in addition, ?ange 32 directed as shown and provided with. openings 233 one for each of the needles to be ‘engaged and spaced correspondingly so that the openings 33 can en— gage over a group of needles as shown .in Figures '7 and 8 to lock the holder inposition on a faller 8 means form a' single integral unit. In’this re‘ spect it resembles the embodiments of Figures 15, 16 and ‘17 which I will now proceed to describe. Referring to Figure 15 I show a blade 60 pro vided'with a cutting edge BI at its top edge and having spaced horizontal flanges 62 cut therefrom and vertical openings 53 formed in said ?anges. bar. On the opposite face of the wall 31)" is a The aforementioned parts and features are all projection 34 having an inclined surface 36’ to contrived so that the openings 63 can receive serve the purpose shortly to be pointed out. The blade ‘is rectangular like inthe embodiment of 10 spaced apart needles therethrough to frictionally Figure 3 but however is slitted adjacent. to each , secure the blade 68 in predetermined position. The securing means of Figure 15 bears a re side edge from thebottornupwardly as shown at semblance to the securing means of the holder 38 to provide the fingers ‘39. It is provided also of Figure 10. ' with the opening 36, all for reasons that will The embodiment of Figure 16 resembles the shortly appear. In this case the holder 30 is 15 embodiment of Figure 3 in that the securing assembled with a group of needles merely by pass means comprises the end wall 70, side walls 10' ing the group through the openings 33 until the and. inwardly directed ?anges 762. It differs member .32 seats on top of the faller bar. The from the aforementioned embodiment'in that the blade is then inserted within the space provided by the walls 38", 362 and ?anges 33’ until the 20 end wall 'Hlhas been bevelled at its topiedge to provide the cutting edge. I lower edge of the opening 36 passes over the pro In the embodiment of Figure 17 the cutter is tuberance 3d and locks therebelow. The width shown at 80 and .is bevelled at its upper edge to of the ?ngers 39 are at least equal to and possibly provide a cutting edge. Outwardly from its greater than the width of the ?anges 33’ so that lower edge extends the horizontal ?ange 81 with thereby the lower part of the blade intermediate openings 82 therethrough to receive a group of the ?ngers is permitted freely to ?ex over the abutment 34 to its locked position of Figures '7 Reference has been made to ‘the fact that the and 8. In this modi?cation the securement of cutting edge shown in each of the embodiments the holder to the faller bar is effected primarily is preferably inclined but the cutting edges are through the member 32 and the openings 33 and not so shown in each of the ?gures already de only incidentally to any frictional engagement scribed because it is deemed more convenient to eifected by the other parts. What has otherwise do this in the enlarged showing of Figure 18 been said of the embodiment of Figures 3 and 4. wherein the cutting edge’ 38 is shown inclined applies also to this embodiment. so that the end BI is higher than the end 82. The embodiment of Figures 11 and 12 di?ers This facilitates the cutting operation for reasons from the embodiment of Figure 3 in this respect: that will be readily understood. the holder 45 has its side walls 452 slotted at their Notwithstanding that a natural ?ber such as bottom and the blade 46 has ?anges 41 extending cotton is of relatively short length of the order outwardly from the bottom of its opposed side as low as one half an inch, many featuresof edges. Otherwise the holder of Figures 11 and my invention nevertheless have a practical ap 12 is similar to the assembly of Figure 3 except plication in the production of yarn therefrom. that in the embodiment of Figures 11 and 12 the It is contemplated that such practical applica blade is ?rst assembled with the holder by being tions be encompassed herein unless otherwise passed upwardly through the bottom thereof so that the ?anges 41 of the blade engage in the 45 expressly statedin the claims. Itwill be understood that I have disclosed in slots of the holder and the two when thus assem Figure 6 only one pattern which assumes a single bled are then passed'over a'group of needles to blade on each faller bar. It will be understood effect the same character of frictional engage that with such specific arrangement the staple ment thereof 'as is effected in the embodiment of ‘Figure 5 wherein the blade acts as a wedge to 50 lengths into which the ?laments are cut will be dependent upon the time interval in the com that end. The ?anges 41 act positively to prevent pletion of a cycle and the rate at which the web the blade from moving out of the holder. is fed, and that a change in this relativerela It has already been pointed out that the se tion will result in a change of the length of these lected group of needles of any particular faller bar vwhich are in opposition to the cutting edge 55 short staple lengths. , g ‘It willalso be understood that the staple length carried thereby do not comb the particular width canl be controlled by associating a multiplicity of cut by said cutting edge. I therefore show in cutting edges with each faller bar in'which event Figures 13 and 14 another embodiment of the a plurality of cuts will be made by each faller invention in which this selected group of needles are removed entirely and a cutting edge posi 60 bar during each cycle. It will further be under stood that the pattern disclosed in Figure 6 tioned in the space left thereby and secured in could be usedfor attaining the general objects that position by engagement with the solid por of my invention. ’ tion of the faller bar. Having thus described my invention and illus By reference to Figure 14 it will be observed that I show a cutter 50 bevelled at 5| to provide 65 trated its-use, whatI claim as new and desire the cutting edge. Extending inwardly from its to secure by Letters Patent, is: . lower edge is the ?ange 52 from which depend 1. A separable attachment to a gill box faller bar comprised conventionally of a base and the pins 53. These pins are of a thickness so as to be received in the openings 54 provided in the needles for detachably securing a blade to such faller bar for the reception of the needles which 70 faller bar with its cutting edge in predetermined relation to its needles, said attachment being have been removed. The ?t of the pins 53 and the openings 54 is preferably a tight one for made of a sheet material and comprising a wall needles. obvious reasons. This embodiment diners from 7 ' of'a width sufficient to span. a group of adjacent needles and of a height less than thelength of the previously described embodiments in the re; spect that the cutting ‘edge and the securing 75 the needles and ?anges‘ bent from the opposite ' r 2,406,641 ‘side edges of said wall to extend inwardly to ward each other and parallel with and normally ' 10 needles projecting through and beyond the open top of said attachment so that a ?at blade can spaced from said Wall-for approximately the di ' be entered between said wall and the group of ameter of the needles, saidwall and ?anges de ?ning an expansible unobstructed channel of 5 » needles engaged there-by and frictionally held therebetween with its cutting edge located above uniform cross-section and entirely open at the the top of the attachment ‘and below the pointed top and bottom, whereby the attachment can be engaged over a group of needles through its a ends of the needles. 7 ' 3. A separable attachment to a gill box faller open bottom with the group of needles encom passed by the wall, and ?anges, with the pointed 10 bar comprised conventionally of a base and needles for detachably securing a blade to such ends‘ of the needles projecting through and be faller bar with its cutting edge in predetermined yond the open top of said attachment so that a relation to its needles, said attachment being flat blade can be entered betweenI said wall and made-of a sheet material and comprising a wall ‘the group of needles‘ engaged thereby and fric of a width su?icient to span‘ a group of adjacent tionally held therebetween with its cutting edge needles and of a height less than the length of located above the top of the attachment and 7 the needles and ?anges bent from the opposite below the pointed, end of the needles. side edges of said wall to extend inwardly toward ' 2. In combination a gill box faller bar com each other and parallel with and spaced from prised of the conventional base and needles, and said wall, said wall and ?anges de?ning an ex a detachable attachment for securing a blade to pansible unobstructed channel of uniform cross such faller bar with its cutting edge in prede ' section and entirely open at the top and bottom, termined relation to its needles, said attachment whereby the attachment can be engaged over a being made of a sheet material and comprising group of needles through its open bottom with the a wall of a width su?icient to span a group of group of needles encompassed by the wall and adjacent needles and of a height less than) the ?anges, with the pointed ends of the needles length'of the needles and ?anges bent from the projecting through and beyond the open top opposite side edges of said wall to extend in; wardly toward each other and parallel with and _ normally spaced from said Wall for approximately the diameter of the needles, 7 said wall and ?anges, of said attachment so that a ?at blade can be entered between said wall and the group of needles engaged thereby and frictionally held therebetween with its cutting vedge located above de?ning an expansible unobstructed channel of the top ofthe attachment and below the pointed uniform cross-section and entirely open at the top and bottom, the attachment being engaged ‘7 ' end of the needles and means on the holder for interengaging with an inserted blade for looking over a group of needles through its openbottom it against vertical movement relative to the with the group of needles encompassed by the Wall and ?anges, with the pointed endsvof the. holder. ‘ ALBERT J. SIGNORET.