Nov. 5, 1946. I 21,410,673 H. o. NAUMAVNN RRocRss FOR THE MANUFACTURR 0F SYNTHETIC YARN Original Filed `~July 14. 1942 9 Sheets-Sheet 1 L. l i„ \. .r Y . L A@ .. @NQí i Nov. 5, i946. ì 2,410,673 H, o, NAUMANN PROCESS FOR THE MANUFACTURE OF SYNTHETIC 'YARN ' original Filed July 14. 1942 9 sheets-sheet 2 Nov. 5, 1946. 2,410,673 H. O. NAUMANN ' PROCESS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Filed July 14. 1942 9 Sheets-Sheet 3 4107 405 /07 77 26.9 2019 a r. ,154 445 478 Q’ 4:4» '/737 c o oN 47a ,46a i @faim 417m n 4.59 l L 457 #'56 4.940” 5/57 Cil/Kto: M44; Nov. 5, 1946. H. o.. NAUMYANN , 2,410,673 PROCESS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Filed July 14. 1942 ` 9 Sheets-Sheet 4 i i 426 v A t l Suma/‘Mofa fßéfßfffàëáwmz @www Jog/Zw, Samaná Nov.- 5, i946. 2,410,673 H. o. NAUMANN PROCÉSS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Fi1~ed July 14, 1942 9 Sheets-Sheet 5 77 30 A ' 400 @5% W3@ www@ Nov. 5, 1946; A H. o. NAUMANN ‘ 2,410,573 PROCESS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Filed Juiy 14, 1942 ` 459 457 im 459 4.67 „f _ 9 Sheets-Sheet 6 ' Nov. 5, 1946. 2,410,673 _ H. O. NAUMANN PROCESS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Filed July 14. 1942 9 SheetseSheet 7 ` #Meridia/1mm” N°v.5,19,46`. 'HQQNAUMANN ` ` 2,410,673 PROCESS FOR THE MANUFACTURE- OF SYNTHETIC YARN Drigínal- Filed July 14. 1,942 9 Sheets-‘Sheet 8 Nov. 5, 17946.' _ - H. o. NAUMANN 2,410,673 * PROCESS FOR THE MANUFACTURE OF SYNTHETIC YARN` lQI‘ÍLgiI'lELl »Filed July 14. 1942 I ` 9 Sheets-Sheet 9 Patented Nov. 5, 1946 2,410,673 UNITED, STATES .cÀTiENT OFFICE 2,410,673 , - ' Pnooess Fon 'rue MANÚFACTURE or v « SYNTHETIC YARN g Herbert 0. Naumann, Englewood,'N.-J., ,assignervk ` to North American Rayon Corporation, New York, N. Y., a corporation of Delaware Original application July 14, ‘1942, Serial No. 450,934. Divided and this application .lune 3, 194s, sena1No.4s9,555 . 3 Claims. ' l (el. .1e-_54) larly concerned with a process and apparatus for the continuous manufacture of Wet> spun threads. Continuous spinning., as the name ` implies, comprises the introduction of a, hydrated colloid into a spin bath to form a thread the after-treat ment of successive portions of the freshly formed thread While it is moving from the spin hathl to a point of collection and the» collection of the com pletel’y ñnished thread into a commercially sale v ' f « . VThe very nature of continuous operation ren ders the handling of the thread, for instance fromone treating unit to another or during the exchange of. an empty bobbin for a full one, extremely diiiicult. :Def-t and accurate handling of the thread during these periods is of extreme importance and demands the exercise of unusual precautions to avoid loss `of time and waste of materials. . . . One of the objects of this invention is to reduce to a minimum the time required for the transfer of the thread from one element of the machine to another and hence avoid any more loss of pro-v 25 duction than is absolutely necessary for the transfer. . 2 , This invention relates to the manufacture of threads of synthetic origin„and is more particu able package. ` ' , Another Yoloject is to properly support the thread at all times, i. e., during the threading-up of» the machine or'during the exchange of a full bohbin for an empty one and hence facilitate the handling ofthe thread during such periods so. as to avoid undue Waste. ` The above >and other objects may be attained by employing thisY invention which embodies among its features forming a thread, leading the formed thread through varicus stages of treat ment, temporarily` collecting- the threadvinto a waste bundle betweenl its peint of origin and its point of collection, meanwhile performing an intra-related thread-handling operation such as transferring the thread from one unit to another apparent upon consideration of the following detailed description thereof in conjunction with the annexed drawings wherein: Figure 1 is an endview, partially in section, of a preferred type of continuous spinning machine constructed according to this invention; Figure 2 is a View in side elevation illustrating a portion of the right or spinning side of the machine of Figure l; Figure 3 is a view inside` elevation illustratingk a portion of the left or .'ñ'nishing side of the machine of Figure 1; Figure 4 is a schematic'perspective view of a typical driving arrangement for the spinning :lachine shown in Figures 1 to 3, inclusive; Figure 5 is. a top plan view vof the entire mechanism for transporting thread from one lto the other side of the spinning machine of Fig u're‘l during threading up thereof, and underlying thread-storage, thread-advancing units being c _omitted for convenience in illustration; Figure 6 is a top plan view partially in section, takenalong _the line 6--6 of Figure 1 and serving toY further illustrate the mechanism shown in Figure 5 ;I . " ` Figure "7 is a fragmentary plan view of the operating deck with which the leftv side of the spinning machine'of Figure lis provided ;l >.Figure 8 is a perspective view of the ring twister threading apparatus used in conjunction with the present invention;> l Figure 9 is a View in longitudinal section of a temporary thread collecting device used in con junction With the threading up of the> ring twister shown in Figure 8 ; n ' Figure l0 is a view in section taken along the line lil-i8 of Figure 9 ; Figure l1A is a view in sec-tion taken along the line i l-_l l of Figure 9; -'Figure l2 is an end view, partially in section, of aspinning machine constructed according to this invention but somewhat modiñed for con or exchanging a full thread package for an empty one, separating the waste bundle from the on venient attachment to pre-existing spinning coming thread and directing the oncoming threadto successive elements of the machine for Figure 13 is a view in side elevation illustrat ing a portion of the right or spinning side of the further manipulationr ' equipment;I ` y ' machine of Figure 12, one godet driving connec Another feature of the invention is a collecting tion being shown in section. device movable from station to station on the Referring novv in detail to Figures 1 to 4, inclu machine upon which the oncoming thread may 50 sive, it will be seen that the spinning machine he wound preparatory to or While it is being y illustrated includes a number of «spinning units, transferred from one element of the machine to ' each-consisting basically of a spinneret l0 and a another and means to arrest the collecting device. pair of thread-storage,_thread-advancing devices and hold it in proper relation to the elements» of i i and i2. On devices H and l2, the- freshly a station. ., ` ` Other advantages of this invention will be iormedthread is subjected to all required after t'reatments', whereupon it is concurrently twisted 2,41 0,673 evident that the amount of stretch to be im parted to the thread in any particular instance may also vary. ' For this reason, shaft 39 is con nected through gear 49 (Fig. 4) to gear 4| on the delivery side of a connoid drive variable speed \ transmission 42 of any conventional type. This - transmission is driven from a gear 43 keyed on shaft 25 through a gear 44. Since motor I1 drives shaft 25, it is apparent that godets 3| and pumps i5 are driven from a common power source al though the speed of each is independently ad justable. From the godet 3|, around the wheels preparation of a thread in the form of a hydrated colloid, the apparatus will be specifically dis cussed in conjunction with the manufacture of viscose rayon. 4 of threads of widely varying characteristics, it is and collected on twisting spindle I3 in ñnished form. For convenience in illustration, all of the component units of vacontinuous spinning ma chine constructed according to the present in vention have not been illustrated. It is contem plated, however, that a single machine _include some 50 to 70 spinning unitsarranged in align ment as illustrated. While it will be increasingly evident upon consideration of the following de scription that this invention is adaptable to any type of wet spinning operation.> involving the of which the thread is wound several times to prevent slipping, each thread is led to its re ' spective thread-storage, thread-advancing unit I _| either directly or through bath trough 34. As Upon reference to Figure 2, it will be seen that all of the spinnerets I9 are disposed in a single common spin bath container I4 which extends for can be seen in the drawings, each unit I | is com prised of two generally horizontally extending the -full length ofthe machine. The spinnerets and 46. are -inounted on the front wall of bath container 20 rollers45 Although rollers 45 and 49 both extend gener I 4 in the usual manner which permits individual ally horizontally, it is the usual practice to dis removal of aspinneret in case of localized oper pose theaxis of roller 4B in a truly horizontal di ating difficulty.> A gear pump -I5 is associated rection while that of roller 45 is slightly inclined withîeach spinneret I9 serving to supply viscose with respect to the horizontal so that the axes of 25 solution _under pressure to thespinneret through the two rollers constituting a unit II will lie in the usual ¿filter I5. So that each spinneret will intersecting planes. Thus, drive shaft 41, which extrude a thread of like characteristics, all of the extends axially from roller 46, is truly horizontal. gear pumps I 5 are driven from` a common power This shaft is provided with a_ gear 48 which source suchf'a's an' electric motor' "I1, see Figure 4. Each pump I5 is' provided with a gear `I8 mesh 30 meshes ‘with a gear 49 on a main drive shaft 50. As is the case with shaft 39, shaft 50 traverses ingwith a gear I9, all of the latter being keyed the entire machine and is provided- with a num to _a- common shaft 29,1'iavirf1g‘on> one end thereof ber of gears 49 corresponding to the number of -a'driving gear-2|. _The rotor shaft of motor I1 carries a sheave 22 connected-by a belt 23 with a sheave24 keyed on a shaft 25, which, addition rollers 45 which must be driven. A housing 5| 35 surrounds gears 43 and 49 to protect the same ally, carries a driving >gear 25. A gear train con sistingl'of gears 21, 28,V 29 and 30 serves to con nectgearìii Aand gear 2| sov as toïestablish a driv- , ing connectiontothe various pumps I5. It is ap» 40 parent thatäalthough, at >any vone speed of shaft 25, >the> deliveryV of all .pumps _I5 ‘will .be uniform, the *speedy ofi shaft 2`0"may. be varied by substitut ing gears of different diameters- in gear train 21,` 2,9, 29, 3Std bring about changes in denier von the part of thevthread extruded through spinnerets I0 by alteration in pump pressure. Y .. At spaced points along. the lengthof the 'rear v‘fall'efl spin yhath container .|4, godets 3| are pro vided, each of these consisting of a driven wheel 32 and afreely rotatable one 33. The thread'is suing from each-'spinneret I9 is ñrst led around the‘re'sp'ective Ygodet -3| then to the thread storage, thread-advancing Ii I. Alternatively, the-thread _maybe ledl fromgodet 3| through a bath trough> 34 structurally similar to troughV I4,_ but adapted to contain hot water or hot acid de pending upon the chemical requirements in any particular instance» In trough >34 the thread is passed arounda freely rotatableïguide 35 and then ledto thread-storage, thread-advancing unit II. ïtî'will ¿be understood that the use of trough 34 or its elimination is entirely a matter of the chem istrygof `'thread treatment since, in a mechanical sense,.the_ thread may -be led with equal ease di rectlyfromgodet 3| to thread-storage, thread advancing unit II or passed through trough 34 underroller 35._ Since the driven wheel 32 of each; godet 3| `is connected with a vertical shaft 35 havingv al gear»Y 31 attached at the lower end thereof and since _all gears 31 are driven from similar- gears 38§spaced along-_shaft 39, it is evi dent that all the godets 3| will have the same takeup _orperipheral speed derived from a com mon source,` „Since the spinning machine 'ofthe present inventionl is adaptable to the manufacture from dirt‘and to provide support for bearings 52 and 53 in which shaft 41 is mounted. Housing 5I ‘is supported in fixed position on a rigid frame member 54 held in position by any suitable means. not shown. _ » _ _ _In connectionwith roller 45, a somewhat simi lar arrangement is employed, this roller being pro vided with an axial shaft 55 supported in bearings >56 and 51 in turn supported in'a housing 58. Within'housing 58 is a main drive shaft 59, ex tending for the entire length of the machine. Gears' 69 are located at spaced points along this shaft, one meshing with each of gears 5I keyed to respective shafts 55. ‘ _ _ _ _ ' " Inasmuch as roller 45 does not extend in atruly horizontal direction, it is evident that this roller will, when properly disposed with respect to roller 46,’ cause thread wound in a coil around the two rollers to move axially of the unit. The theory of _operation of two-roller thread-storage, thread advancing units is the familiar one that thread drawn onto a roller will approach the same at a right angle to the direction ofjpull which is, of course, from the axis thereof. Thus, if roller 45 is slightly inclined with respect to the horizontal so that thelaxis thereof and that of roller 46 converge in the direction of their unsupported ends, thread wound around the two rollers will necessarily progress in the direction of con-vergence, i. e., toward the unsupported end of the unit. Since the spacing between adjacent con nected coils is a function of the angle of con ` vergence, it is also evident that the angle will determine the number of coils in unit II at any given vtime which», in turn, will control the dura tion of any treatment they may receive wduring passage »thereoven `assuming a constant linear speed. Thus, in the interest of accurate control' of the duration >of the treatments to be accom 2,410,673 6 .plished on unit lI I', the position of the am‘s of roller 45 is rendered adjustable. To this end, posite side of the machine. Guide roller 'I0 is sup' ported on a bracket extending upwardly from each housing 58 is provided with an arcuate _Cover collection trough l2 underlying roller 46, while portion i132 which surrounds the upper portion of guide roller 'il is supported on a bracket attached to a portion of the machine frame. The path of and rests upon a tubular support 63 which ex Cn tends for the full length of the machine and the thread to .and from unit .II is shown in Fig ure i, the spaced coils wound around the two rollers being omitted for convenience in illustra tion, see Patent No. 2,194,470 to Hartmann et al. It will be understood of course that treating li quids are supplied to the yarn on the rollers d5 serves >to carry in like manner >all of the housings 58. _Since tubular support 63 will carry considera ble load it is contemplated that at spaced points along its length it be Ysuitably »held from any con venient portion ofthe main frame of the machine. Shaft 53 is centered within tubular support E3, the and at by supply pipes L232 and 234 respectively. latter having slots therein ,at spaced points along ' En the operation of> the machine, it is evident its length to permit meshing of gears Bü and 6I, that the rollers ¿S5 and d6 must be driven at the same peripheral speed. This is best done by driving shafts 5i) and 59 (Fig. 4) in synchronism as .may `be seen in Figure 1. .Since all of the housings ,58 float on tubular support 63, it is evident that they are rotatable thereabout. Similarly, since shaft 59 .is centered in tubular support 53, it is equally evident that from a common power source or by driving one shaft from the other. Shafts 50 and 59 are pro vided with pinions 'i3 and 14, respectively, of like size, both pinions meshing with a driving gear housing 58' may be rocked without interfering ~ with the meshing of gears ‘to and E I, the arcuate slots in the underside of tubular support 83 being of sufficient amplitude to permit considerable an gular displacement of the housings 58. Because each housing 58 contains bearings 55 and 51 of 'iii driven from a gear ‘I8 on main power shaft 25. While it is important that the peripheral speeds of rollers ¿l5 and ¿E be identical, it is evident that their talreup speed may kbe in excess of the de livery speed of the adjacent godet 3| so that stretching may occur between each unit II and shaft 55 any movement of the former about tubular support .63 will, of necessity, alter the an its associated vgodet 3l'. Arrows in Figures 1, 2 guiar disposition of the latter. The adjustments, and 4 serve to illustrate the direction of rotation of course, involve only a slight angular displace of the rollers of unit II. ment of housing 58. This is effected' by turning a 30 It will be recognized that the axial movement shaft 64 having an end bearing 55 which is pivot of the coils of thread from the supported to ally attached to a support 65a. Shaft ed is pro ward the unsupported end of thread-storage, thread-advancing device II will occur only after that device has been threaded up. To do this the depending arms of a bifurcated member 66 35 it is, of course, first necessary to initiate rotation attached to the bottom of and extending down of shafts 5i) and 59, which, through the inter wardly from housing 5B. The free end of- shaft mediate gearing, cause rotation of shafts ?'i and 64 is located adjacent a removable dust cap t1 55 and the rollers ¿E and d5, carried thereby. This and is adapted for engagement by a driving tool, is done by starting motor I'I, which action like operated from the front of the machine, such as wise causes operation of the pumps I5 as well as godets 3l. At this stage, the spinning solution a wrench. Thus, when shaft Gli is rotated, bifur cated member t6 through its nut is moved either is extruded from each spinneret l5. The opera closer to or further away from pivoted end bearing tor then grips the material issuing from the spin 55 of said shaft @Il depending upon the direction neret, pulls it up from the bath and winds the re of rotation. Movement of biiurcated member B'I 4.5 sulting thread several times around godet wheels toward end bearing S5 tends to cause lowering 32 and melting enough convolutions to pre of the unsupported end of roller G5, while move vent slipping. The thread is then led from the ment in the other direction has the reverse ef godet, and wound around rollers 45 and ¿ä in the fect. In either case, housing liß'is pivoted about form of a closed coil consisting of a number of tubular' support 53 to change the angular posi i contiguous or superimposed convolutions. This tion of shaft 55 and cylinder 45 concentrically coil may be wound near the supported end of vided with a threaded area over which a nut is passed. This nut is pivotally attached between mounted thereover. Since a screw is used to the unit i! in which case it will move as a body alter the position of shaft 55, it is evident that the adjustment is self-locking. to the unsupported end of the unit and the suc cessively spun thread will be wound on in a po ' sition determined by the angular disposition of As illustrated in Figure 2, rollers ¿l5 and ¿le which constitute 4unit EI are arranged in such a way that their axes lie in the same vertical plane but are convergent in the direction of the unsup ported end of the unit. This is convenient from the standpoint of space economy, but is not es ci) the roller 45. As the coil begins to move toward the unsupported end of unit á l, the operator drops sential. It is evident that the axial feeding theory will likewise obtain in any arrangement involving at least two rollers, the axes of which lie iny in the unit. When the closed coil reaches the un supported end of the unit l I, the thread is broken between the co-il and the spaced convolutions on the roller and the coil is removed and discarded. tersecting planes. The thread leaving the godet 3l is first led on to the upper cylinder Q5 of unit I I over a guide roller the connecting thread into freely rotatable guide roller t3 so that each newly formed coil will'be located `directly adjacent the supported end of '» The resulting free end of thread is then led un der roller if? and over roller 'Ii and onto a ro bracket extending from collection trough 69 tating temporary collecting device il. This de vice is moved bodily from the position shown in Figure l to a position overlying a guide roller i8 which underlies roller d5. bearing a position with respect to thread-stor lili, located adjacent the supported end of cylin der said guide roller being supported on a It is led off of the opposite side of upper roller d5 of unit I'I, under a guide roller il) adjacent the free end of the unit, over a guide roller 'II and from thence over a guide roller ‘J8 to a thread-storage, thread advancing unit I2 which is mounted~ on the 'op age, thread-advancing unit i2 similar to the po sition of guide ll with respect to unit I í. AUnit i2 may then be threaded up Ain the manner ¿lust described. ` " ' ‘Upon consideration of Figur-es -l yand' 2r, it will- ' 2,410,673 7 be seen that some difficulty may be encountered in v»winding a closed coil around rollers 45 and 46 near their supported ends because of bath. trough 72. It is entirely possible to mount bath trough I2, however, in such a Vway that it may be tilted to a position sufficiently vspaced from the roller so'as to obviate interference with threading up as previously described. The tilting of trough "i2, while of convenience in some installations, isinfno sense essential. VIn Figure l it can be fseenthat the free end of roller 4S extends be yond the end of trough l2.v When this arrange 8 end of thread is wound around rotating tem porary collecting device Tl, and motor 80, with the temporary collecting device, is bodily moved from right to left as viewed in Figure 1 so that temporary collecting device 'Il is positioned ad jacent the supported end of thread-storage, thread-advancing unit l2. The peripheral speed of the small cylinder 'Il constituting the tem porary collecting device is so correlated with the speed of bodily movement of the temporary col lecting device across the machine from right t0 left in Figure l that the cumulative takeup effec tive at the free end of unit Il is very slightly in excess of the delivery speed of that unit. In this way, the occurrence of slack is avoided while thethread is not subjected to excessive tension. So that a plurality of adjacent pairs of thread ment is used, any of the thread-storage, thread advancing units may be threaded up by winding the closed coil adjacent the unsupported end thereof and manually leading the connecting thready over freely rotatable guide roller 58. If this is done, a stop guide 'lq1 must be used to pre vent >the coil from running off the end of the up with maximum convenience, another small ' unit while it is threading itself. In Figure 2 it «can be seen that guide 'i9 is in the form of a cylindrical temporary collecting device 8l is dis posed in horizontally oiTset position with respect storage, thread-advancing units may be threaded porcelain loop pivotally attached to a bracket to device 11 a distance equal to the space be aflixed to trough 69. In_the full line position tween the axes of adjacent units. Device 8| is of Figure `2, guide 19 functions to prevent the supported and driven from a motor 82 of struc thread loop from moving axially off the end of 25 ture and functional characteristics similar to mo theunit. When not in use, guide 'i9 may be tor .85). Upon reference to Figures l and 5, it manually swung to the broken line position of can be seen that collecting devices 'l1 and 8| Figure 2 `where it will no longer Contact the are normally disposed on opposite sides of the thread connecting tangentially rollers ¿i5 and 46. machine. Thus, when collecting device 'H is over When the closed coil is wound adjacent the 30 lying a thread-storage, thread-advancing device free end of unit Il, around cylinders 45 and Il, temporary collecting device 8| is in a simi 4B, the threading _action of the unit is brought lar position over an adjacent thread-storage, about by the winding of additional coils of new thread-advancing device I2. ly spun thread thereon and by the pulling of a Upon reference now to Figures 2 and 3, the few of the convolutions off of the closed coil in 35 manner of threading up a machine by the use the direction of the supported end of the unit, of collecting devices 11 and 8l may be ascertained. the latter occurring when the takeup speed of In Figure 2, temporary collecting device 'Il is the thread-storage, thread-advancing device is in disposed above a thread-storage, thread-advanc excess of the speed of delivery of the thread there ing unit Il designated by the reference letter A. to. As threading up commences, the spacing be 40 At the> same time, temporary collecting device tween coils will be relatively great, but will grad8l is over a thread-storage, thread-advancing ually lessen until the spacing predetermined by device I2 in aligned position behind the unit H the angular adjustment of roller 45 has been marked B on Figure 2. When unit A has been reached. At this time, the closed coil can be threaded up, the operator leads the free end of broken off and discarded and the thread led to a 45 thread around temporary collecting device Tl. new stage as, for example, `temporary collecting which is driven by motor 8d continuously through device 'I1 in the case ofaunit l I . out the threading up period. Thereafter, motor While the foregoing description of threading 8B is bodily moved to the opposite side of the ma up has been confined to the threading up of unit chine, carrying with it the thread issuing from . il, it is evident that exactly the same procedure 50 unit A which is being concurrently wound on may be followed in the case of unit I2. Thus, the - device l1. At the same time, temporary collect trough underlying the lower roller of each unit ing device 8l is moved toward the operator on the l2 may be moved away from the roller to permit spin bath side of the machine to a position over threading up by winding a closed coil adjacent unit B similar to the position previously occupied the supported end of the unit 0r a guide such 55 by temporary collecting device 11 over unit A. as guide 19 may be used to permit winding the Thus, one operator on the spin bath side of the closed coil adjacent the unsupported end of .the machine may be threading up a unit B while unit. Neither of these is illustrated in Figure l. another operator on the finishing side may be It is contemplated, however, that a guide such threading a unit l2 in alignment with the unit l l as ,guide 19 be associated with the trough of the 60 marked A.Y In this way, both of the operators upper roller of unit l2 in the same manner that are continuously occupied. It will, of course, be guide 'I9 is associated with trough B9. understood that when the temporary collecting After the thread-storage, thread-advancing device completes its bodily movement across the unit l! has been threaded up, it has been stated machine, it will have wound thereon a very small that the thread is carried from a point adjacent 65 amount of thread. This is treated as waste and the free end of that unit to a point adjacent the thread is broken by the operator directly ad the supported end of thread-storage, thread-ad jacent the collecting device and led around the vancing unit l2 so that the latter may be threaded thread-storage, thread-advancing unit in ques up in the manner previously described. This tion in a manner previously described. After the movement is effected by leading the free end of 70 unit B of Figure 2 has been threaded, the posi thread from thread-storage, thread-advancing tion of temporary collecting devices Tl and 8l is unit il to a smalll rotating cylinder. 'l1' consti again reversed. The operator then breaks the tuting a temporary collecting device. Collect t thread adjacent temporary collecting device 8l ing device 11 is supported by and driven» through and begins threadingV the lunit l2 which is in suitable gearing fromda motor 80. Thus, the free 75 alignment with unit _B of Figure 2. 'I'hread 2,410,673 10 storage, thread-advancing unit'H, in its return each of arms 9|) and 9|. Thus, for example, the movement from the finishing side to the spinning rotation of motor 58» in one direction may be stopped when armL 93 reaches a predetermined side of the machine, carries no thread over to a point above unit A since this unit has already been threaded. Accordingly, immediately after breakage of the thread adjacent temporary col lecting device 8l, as the operator starts to thread the unit i2 behind B of Figure the entire position and the rotation in the other direction may be; stoppe'dvwhen 4arm 9| reaches similar predetermined position at the same end of frame ce. Since motor 93 will necessarily develop a certain amount of inertia in operation, it is highly assembly supporting temporary collecting devices desirable that the stoppage thereof be eiîected l? and 8| is moved to the right of Figure 2 a 10 instantaneously to' prevent possible damage of distance equal to twiceY the distance between the equipment caused yby either of members Sii or el' exceeding the full amplitude of movement the centers of adjacent units. This brings col on screws S3 and 8d.. This is conveniently done lecting device 'l'l over unit || marked C and by providing a magnetic brake H32 (Figs. 2 and 5) , device 8| over a unit l2 behind and in alignment the control circuit for which is in circuit with the with unit D. When this stage has been reached, the previously described operation is repeated and so on until the entire machine is threaded up. It has been stated that motors SQ and 82 and the temporary collecting devices supported and limit switches. This brake |832 is conveniently ' located on the end of the rotor shaft of motor 93 opposite pinion 9d. The bodily movement of temporary collecting driven thereby are bodily moved across the width 20 devices 'l'l- and 8| across the machine has now of the machine. This movement is effected by been described. It has been previously stated, the concurrent rotation of oppositely threaded however, that frame 85 is subject to bodily move screws 83 and 8d (Figs. 5 and 6) supported in ment lengthwise of the machine. To this- end rectangular frame 85 and in respective driving frame ¿l5 is supported from a car H33 having two pairs of flanged wheels IM and |135 which ride engagement with interiorly threaded members in rails |06 and IM supported above the machine 88 and @l which surround the threaded shafts E3 and 8d and have depending Shanks 8i# and 39 in any convenient manner, see Figure l. Wheels Itâ may turn freely on axle lcd or may be which serve to support motors 83 and 82, respec tively. To prevent pivotal movement of motors attached thereto, the only requisite being that Sii and c2 and the assemblies carried thereby about 30 ~the wheel and axle assembly is freely rotatable. threaded shafts 83 and 84 as axes, brought about Wheels m4, however, are attached for free rota tion at the ends of axle |99 and this axle, midway b_y the ‘rotation of those shafts, members |36 and of its length, carries a keyed pinion lli) which 8l are provided with arms si! and @l extending in mutually convergent relation at right angles is adapted to mesh with a rack | | | which extends for the full length of the machine at a position to respective shanks E8 and 88. The free ends midway between rails |06 and Iû‘l. The manner of arms Sil and @i are slotted and receive therein of driving car |03 through rack and pinion | lt a guide rail 92 which extends for the full width ||| can now be described. To this end, axle '|09 oi the machine and is suitably supported in is provided with a keyed sprocket |l2 connected frame S5. Since shafts 83 and 8d are oppositely threaded, 40 by a chain H3 with a sprocket llt on the rotor shaft of a motor ||5.» Thus, upon rotation of it will be apparent that, if both are driven, mem motor llîe', sprocket ||2 keyed to axle |09 will bers 3c and 8l will move across frame S5 in oppo cause rotation of pinion | lll, which, meshing with site directions carrying with them the respective rack l l l, will pull the car |93 in a direction oppo motors 8|) and 82 and temporary collecting devices site to the direction of rotation of pinion lili. l? and 6|. By energizing motor H5, lthe car |53 is moved The intermittent rotation of shafts 83 and 54 lengthwise of the spinning machine. It is desir is effected through a reversible motor S3, the rotor shaft of which is provided with a pinion able,-however, that the lengthwise movement be controlled so that temporary collecting devices 'll 94. Pinion 9d is operatively connected to threaded and 8| will be moved a distance exactly equal to shaft E3 thro-ugh an idler gear e5 which meshes twice the distance between the centers of adja with a gear QS keyed to threaded shaft 83. A similar gearing arrangement including an idler cent units. This controlled movement is effected by so arranging the diameter of pinion H8 that Si and a gear 93 keyed to shaft Se serves to estab lish a driving connection between the latter and 360° of movement thereof will move the car pinion 9G. Conveniently, the gearing connecting 55 exactly the desired distance. After completion the rotor of motor 93 and shafts 83 and 8d is of lthis movement, motor | l5 is . automatically enclosed in a dust-proof housing 99. It can now be seen that for any given direction of rotation de-energized and the inertia thereof automati cally overcome. This is eifected through a tim ing disc | t5 keyed to axle IBS adjacent pinion || ß. opposite directions. It is necessary, however, that 60 Thisv disc, as may be seen in Figure 2, is provided >of »motor S3, members 85 and fil will be driven in the direction of bodily movement of collecting with a notch and‘serves to position a switch arm devices 'l'l and 8| be reversed each succeedingf Il?. Disc lili is so disposed on axle |99 that the operation thereof. It is for this reason that motor notch therein will be in registry with switch arm 93 is of a reversible type. The exact construc ~||'| Vupon completion of the desired movement tion of motor S3 formsy no part of this invention, 65 lengthwise of the machine. Thus, arm lll is it being contemplated that any conventional re normally held in a position to maintain the cir versible electric motor of suitable characteristics cuit ‘to motor ||5 closed. It serves to open the may be used. The motor is controlled through circuit to> motor H5, however, when in registry va circuit, not shown, from a pair of push bottoms with the notch of disc | It, and, at the saine time, l-ilil and lill (Fig. 1), each of which serves to drive 70 through relays to operate a magnetic .brake H8 the motor in one direction only. The stoppage of a type similar to magnetic brake |132 previ of motor @3 _is effected automatically by a pair ously described. Thus, motor H5 is automati of limit switches of any conventional construc cally stopped. Initiation of rotation thereof is tion disposed on opposite sides of bar Q2 adjacent effected through switch arms ||9 and 12|) con one of its ends, one switch being in the path> of 76 nested at the ends of along shaft |2| which andava 11 12 extends for the full width of the machine. Switch arms HSS-and |20 are disposed in a posi tion to be conveniently operated from either side that the angular disposition of shaft |34 may be varied by the employment of a construction such as that used in changing the angular position of shaft 55. Since the apparatus employed is iden tical to that used in conjunction with roller 45, of the machine by pull cords. A linkage |22, |23, |24 connects shaft |2| with switch box |25 in which the various controls for both motors H5 further description thereof is deemed unneces sary. Note threaded shaft |40 which corresponds to similar shaft 64 and dust cap |4| through removal of which access to shaft |40 may be and_9,3 _are located, as well as the relays for the operation of the magnetic brakes. It can be seen that if the operator Pulls switch arm H6 and gained in order to adjust the angular disposi then immediately releases it, motor H5 will operate until the notch in disc | I6 permits switch tion of roller |26. Housing |32, which corre sponds to housing 5| on the other side of the machine, is mounted on a portion of the main arm ||1 to open the circuit. At this point it will automatically stop. On the other hand, if the operator should hold switch arm H9 during the ‘time that the notch in disc H6 and switch arm vH1 are in registry, motor H5 would continue to run. frame in such a way that shaft |26 extends in a truly horizontal position. It will be recalled that the angular position of shaft 41 is not adjustable. This is also true of shaft |28. Thus, while the lengthwise movement of ` car |03 will normally occur stepwise, it can be It is, of course, necessary that each upper roller |26 and its corresponding lower roller |21 controlled to any extent by the operator. Switch arm `|20 is used to drive motor ||5 in the other 20 be driven at the same peripheral speed. It is direction and is normally employed for returning likewise desirable that the takeup speed of unit I2 be approximately the same as the delivery the entire threading up assembly to one end of the machine after threading up has been effected. speed of unit H. Upon reference to Figure 4, the manner of accomplishing this may be ascer _Having now described the manner in which the machine is threaded up including the appa tained. In that figure, it can be noted that ratus for transferring the free ends from the main drive shafts |3| and |31 are provided with units H to their respective units |2, the details gears |42 and |43, respectively. These gears are of the latter units will be discussed. driven by gear |44 on a shaft |45, the opposite Each unit |2 consists of two rollers |26 and end of which carries a gear |46 in mesh with a |21, supported at one end only, and having their. 30 gear |41 which rests against and meshes with free ends extending generally horizontally. As driving gear 15. The latter, it will be recalled, in the case with lower roller 46 of unit H, lower serves also to actuate shafts 50 and 50 to drive the component rollers of unit ||. B_y substitu roller |21 is mounted on a shaft which extends axially of the roller and is in a truly horizontal tion of gears of various diameters in the gear position. This shaft, designated by numeral |28, train |44, |46, |41, it is possible to bring about is provided with a driving gear |29 keyed thereto any desired speed on the part of rollers |26 and which meshes with a gear |30 keyed to a main |21 with respect to rollers 45 and 46. Since, how drive shaft |3I. Drive shaft | 3| is similar to ever, all rollers |26 and |21 are driven from the drive shaft 50 and is provided with a plurality same gear, |44, it is apparent that they will have of gears |30, one for coaction witheach gear 49 identical peripheral speeds. Like the rollers 45 |29 for each of lower rollers |21. Each mesh and 46, the rollers |26 and |21 are provided with ing pair of gears |29, |30 is disposed in a hous liquid supply pipes 260 and 21|, and with liquid ing |32 ñxedly mounted on a portion of the collecting troughs 214 and 211 respectively. mainframe of the machine. Housing |32 is pro As has been previously stated, thread-storage, vided with' a bearing |33 for supporting shaft |28. thread-advancing unit l2 is threaded up in the ' Upper roller |26 of the thread-storage, thread same manner as the respective unit H. "advancing unit l2 is likewise provided with an On thread-storage, thread-advancing unit i2, the thread is subjected to further aftertreatments, axially extending drive shaft, said shaft bearing the designation |34. Shaft |34 is provided with a gear |35 which and, when it leaves that unit, is in finished form It is then led directly to a ring twister mecha nism, best shown in Figures l, 3 and 8 to 11, in elusive. The twist-er mechanism shown is large >meshes with a gear |36 mounted on main drive shaft |31. Shaft |31 is similar in structure and function to shaft 56 and it is provided along its length with a number of gears |36 corresponding to the number of rollers |26.` The pairs of gears |35 and |36 are mounted in housings |38, each, ly conventional, being somewhat modified, how ever to ñt under unit |2 in the interest of space conservation. Twister spindles |3 are driven in pairs from belts |46 which pass over and are of which extends for a considerable distance into propelled by a cylindrical pulley |49 keyed to a the interior of a, roller |26. Housings |36 are power shaft |56 driven in any convenient man elongated in this manner so that the bearings ner, not shown. The usual idler pulleys |=5| are for shaft |34 are spaced apart a sufficient dis 60 associated with belt |43 and a counterweighted tance to insure rigidity of that shaft and to pre vent wobbling movement of roller |26 in response to radial thrust. Only one bearing for shaft |34 can be seen in Figure 1, this being designated by the numeral |39. Note that the elongated hous ing structure is likewise carried out in lower roller :26. The remaining portions of housings |32 and |30 will be hereinafter more fully described in conjunction` with the detailed construction of rollers |26 and |21. It is contemplated that housing |38 be mount ed for pivotal movement on tubular support |36a, the construction of which is conveniently iden tical to~the construction of tubular support 63 associated with housings 50. It is understood belt tightener pulley |52 is employed. Each twister spindle |3 is provid-ed with the usual ` brake i 53 for localized stoppage of the spindle for the exchange of spools. The brake, itself, 65 is conventional in form but is provided with novel engaging means consisting of a depending arm |54 cooperating with an upwardly extending arm |56 provided with a bifurcated end. Arm |55 is driven through a rod |56 provided with a 10 curved operating surface |51 adapted to be en gaged by the leg of the operator as he stands beside the machine. A spring |53 normally biases rod |56 and hence arm |55 to release position.' Thus, depending arm |54 is normally biased in a 75 clockwise direction as viewed in Figure 1 there is 2,410,673” 14 by urging brake |53 away from the bottom of traveler I1| and the drum, the free end being thrown into the rapidly rotating twister bobbin the spindle, arms |54 and brake arm |53 func tioning mechanically as a bell crank. Upon rei erence to Figure 7, it will be noted that oper |13 mounted in spindle I3 shown in Figure 8. The relatively small amount of thread collected on the bobbin of drum ||ë may' be removed therefrom and discarded as waste. In order that the motor drum unit IGZ-_|53 can be moved from spindle to spindle as the respective twisters associated with each unit |2 are threaded up,-the wheel-rail assembly is provided. As a consequence, when one twister spindle has been served, the motor car is moved to the next adjacent one. At each unit, however, the motor is locked in operative position. This is done by means oi a lever |1d pivoted at |15 to the motor housing. Lever |1£| is provided with an operating handle |16 and a ating surface |51 is disposed in registry with notched-out portions |59 of a grill work |60 serv ing as` a platform on which th-e operator may stand while threading unit I2. Grill work |69 is supported by braces I6I extending from the main frame of the machine. As can beseen in Figure 1, braces ISI constitute guide bear ings for rod |56. The operator,- on the other hand, stands on the ground floor of the operat ing room when twister spindle |3 is threaded up, and, as a consequence, the twister brake oper ating surface is located for manipulation from that level. pin |11, adapted for cooperation with holes |18 It is contemplated that the thread issuing provided at spaced points along lower track ISB; from unit I2 will be delivered at a. rate approxi When pin |11 is received in a hole Hä, the motor mating 60 to 100 meters a minute. Ring twisters, 20 and drum unit is restrained against movement on the other’hand, are normally used with thread along the tracks. When it is to be moved, how being pulled from a stationary package. As a ever, the handle |1|â is pushed in toward the consequence, it is impossible for an operator to twister spindle thereby extracting pin |11 from »thread up the traveler of a ring twister with a thread moving at a speed such as is here con hold |18 and allowing the device to be manually moved along the track to the next stage. templated, the slack produced being so great as to cause substantial diiiiculty. For this reason, a novel device and method for threading up the ring twister has been provided. This device consists of a temporary collecting drum |62, driven through a very sensitive clutch, herein after more fully described, by an electric motor |63. The housings of electric motor |63 and drum |62 are fastened together‘to form a uni tary Structure and that structure is provided with arms |64, |65 and |56 (Figs. 3 and 8) on the respective ends of which wheels are provided. These wheels are arranged to ride in tracks |61 and |58 aiîlxed to the moving traverse ring board, which, during twisting, Vis reciprccated in a ver In order that drum-motor assembly |52 vand |63 need not be spotted at the various stations, pivot |15 includes a coil spring which normally urges pin |11 against rail |63. In this way, the operator may push handle I 16 in' toward thema chine Yto extract pin |11, then release handle |16 and push the car along the track. When the next station is reached, pin |11 will be urged auto matically into the next hole |18. 40 tical direction in a conventional manner. Tracks ' wedged in 'between` the drum and the motor as- ` sembly to be engaged by moving parts. >Attention is directed to the fact that vthe various spindles I |3 are not located directly under the cor |61 and |68, in addition to supporting inotor drum> assembly IGZ-|163 for movement there along, act as conductors for -the supply of elec tric current to motor |63. It is contemplated that motor |63 be a low voltage unit and that one of the poles be served through the machine while the other pole is» isolated from the machine by the use of insulating material inthe mounting of one of the railsl |61, |58. Referring now to Figure 8, it will be seen that a thread guide |69 supported by a rod |10. is located vertically above and. in alignment with . In Figures 2 and 8, a wire guide |19 can be seen extending from a portion of the motorV hous _ ing. .This guide is to insure that the thread is wound on drum |52 and cannot be accidentally responding thread-storage, thread-advancing unit in. ci l2, see Figure 2. rI‘he reason .for locating the twister spindles between adjacent units isa dual one. In the iirst place, more space is allowed for guides |69, and, secondly, and yof even greater importance, a relatively long path is provided between upper roller I2@ and the twister spindle. Since the last stage of aftertreatment normally consists of dryingthe thread,.by the application of heat, thereto, and since, according to this appara tus drying is to be eiîected on rollers |25, the rel twister spindle I3. When the twister traveler I1I is to be threaded, the operator leads the free 55 atively long path between the said rollers and the associated'spindles IIS allows time for the end of thread issuing from roller |26 of thread thread to cool before twisting. storage, thread-advancing unit I2 and wraps it In Figures 9„10, and 1l, theinternal structure around a cylindrical spool fitted over drumy |62 of collecting drum |62 and the driving connection which has been caused to rotate by energizing motor |63. The driving arrangement between 60 between said drum and motor |63 is illustrated. It can be seen that drum |62 is in the form of a motor |63 and drum |52 is such that the takeup hollow cylinder supported from shaft I8@ extend speed of drum |62 will be in excess of the delivery ing from the housing of motor |63 and connected speed from thread-storage, thread-advancing to the rotor of said motor by` suitable reduction unit I2, a drum takeup speed of approximately ñve meters a minute in excess of the delivery 65 gearing, not shown. Flanged- spiders ISIv and |82 interiorly support drum |62,.said spiders `being speed from unit |2 being contemplated. Thus, spaced from shaft |39 by ball »bearing assemblies the thread will be under very slight tension at |83 and |84. It is contemplated that drum |62 this stage and will follow the path designated by be made of hard rubber and be provided with a the reference letter A in Figure 8. The operator thenpulls the thread A to the left, as viewed in 70 plurality of spring latches |35 for the :purpose of holding in position a thread collecting bobbin oi Figure 8, and threads it through a guide |12 conventional form, not shown. rI‘his is> a matter mounted on the motor-drum assembly and of convenience, since waste yarn wound on the through guide |69 above the twister spindle. The collecting bobbin can be removed from drumi |62 thread is-then passed under traveler |1I. Once thisisdQne, the Athread is broken between twister 75 by’sliding the bobbin axially ofi the-unsupported '2,410,673 1S 16 end of the drum' without interference with the 206i is'perma’nently mounted in cap 202 and is driving connections for the latter. adapted to extend into any selected one of the sockets 295.V So that a connection may be main tained between cap 202 and spider 203 except dur ' It can be seen that flanged spiders |8| and |82 do not establsh a driving connection between shaft |80 and drum |62. On the contrary,.these bearings merely serve to support >the drum from the shaft in such a way that the two are freely relatively rotatable. At the free end of shaft |80 a small clindrical collar |86 is keyed in posi tion by a screw key |81. Screw key |81 not> only functions to key collar |88 for rotation with ing periods of adjustment, the cap is normally biased to the left, as viewed in Figure'Q, by a spring 201 mounted within a recess in hub |99. This spring normally urges a pin 288 to the left, as viewed in Figure 9, the shank of said pin being threaded into cap 202.y » " l By'the arrangement just described, it is pos shaft |80, but likewise maintains said collar and the shaft against relative axial displacement. Above and below collar |86 arcuate brake shoes sible to quickly and conveniently vary the load ing of springs |92 and |93 to any desired extent |88 and |89 are located` cam |96. These shoes are disposed within the limits defined by the conñguration of Todo this, the operator grasps cap on the ends of metallic arms |90 and i 9| , respec 202 and pulls it axially away from motor housing tively, the other ends of said arms being pivotally connected to spider |32. From this it can be' seen |63. This disengages pin 206 from one of the sockets 205 in spider 283. Thereafter, the cap is turned either 4to the'right 'or left, depending upon whether the‘loading of the springs |92 and that so long as brake shoes |88 and |89 are urged into engagement with collar |86 a driving con nection is established from shaft |89 through the brake shoes and arms |98 and |9| to spider |82 and from thence to cylindrical drum |62. It has been previously stated that the clutch |93 is to be increased or decreased. Since the springs are shown at the minimum loaded posi tion in Figure l0, it is evident that the cam in that position may be turned only counterclock required in this installation be extremely sensi wise, as viewed in Figure 10. When the desired tive in operation. For this reason, means are adjustment is reached, it is only necessary to re provided for varying the load on brake shoes |88 lease cap 202 in any position such that the pin and |89. Midway of the lengths of arms |90 and 206 is in registry with one of the sockets to allow |9|, identical coil springs |92 and |93 are at spring .207 to draw the cap to locked position. tached, these springs being connected to the free 30 The eif'ect of the structure just described dur ends of' arms |94 and |95, respectively, the other ing the'threading up of a ring twister from a unit ends of said arms being anchored by pins to spi of a continuous spinning machine is that the pe der |82, the anchorage being of a nature to per ripheral speed of drum |62 may be set to a pre mit pivotal movement about the pin. It is now determined value »is excess of the delivery speed evident that if arm |95 be rocked in a counter of thread-storage, thread-advancing unit I2. clockwise direction, as viewed in Figure l0,`and This excess in speed will be effective, however, arm |94 be similarly moved, springs |93 and |92 only so long as there is no resistance to rotation will be extended to thereby increase the pressure of drumy |62. When thread is wound around the . on shoes |89 and |88 thereby increasing the fric bobbin,` which is fitted over drum |62, the tend tional contact between said shoes and collar |86 40 ency of lthe drum to take up faster than the to increase the power resistance differential nec thread-storage, thread-advancing Yunit delivers essary to cause slippage. The loading and un tends toload drum |62 so that resistance to turn loading of springs |92 and | 93 is accomplished by ingmovement will. cause slippage of the clutch the employment of a cam |96 having faces of construction just described, thereby preventing identical curvature disposed 180° apart. The ine vl breakage of thread while at the same time main configuration of cam |96 may be readily viewed taining sufñcient tension so that thread will be in Figure 10. Bearing against the surfaces of taut between the free end of the thread-storage, cam |96 are followers |91 and |98 connected to thread-advancing device and drum `|62 at all arms'l94 and |95, respectively. Thus, by rota times. Similarly, 'as the build of thread on the tion of cam |96 in a counterclockwise direction, as bobbin surrounding drum |62 increases, and so it is viewed in Figure 10, the distance of follow tends to increase the takeup speed of the tem ers |91 and |98 from the center of shaft |80 may porary collecting device, the clutch mechanism be increased.l Due to the fact that the two cam will slip to prevent thread breakage while sti-ll surfaces of cam |96 are identical in configura functioning to maintain the thread taut as shown tion, such movement will bring about an identi- ,. in Figure 8 while the operator prepares to thread cal increase in loading of both of springs |92 and up twister spindle |3. The clutch mechanism |93 tothereby increase the clutching effect be just> described may be used in temporary collect tween shoes |88 andy |89 and collar'l86.V The ing devices 'l1 and 8| Ato avoid excessive tension of movement and maintenance of cam |96 in posi the thread during transfers from the units || to tion is effected by apparatus shown in Figures 9 the corresponding units l2 in threading up. and l1. Cam |96 is connected for rotation with In Figures 12 and 13 there is shown a modified hub |99 provided with a square end 200. Square type of continuous spinning machine constructed end 200 is received in a bushing 29| pressed according to this invention. The liquid treat within knurled cap 202. Thus, when cap 202 ris ment steps effected on this machine may be sim turned, the torque is transmitted to cam |96 di ~ ilar to those of the Figure 1 apparatus or may be rectly through its hub |99. For maintaining the adjustment, a lock is effected between a flanged spider 203 and cap 282. Flanged spider 203 is marginally connected to drum |62 by three cir cumferentially spaced screws 204 while its hub portion is mounted for free rotation on the ex terior of hub |99 of cam |95. As can be seen in varied in a manner to be hereinafter described. As can be seen upon reference to Figure l2, the modified type of spinning machine is assem bled in conjunction with a two-bath system in which bath troughs 300 and 30|, their'support ing framework’302, and spinning pump assembly 303 are adapted from a conventional two-bath a plurality of circumferentially spaced sockets spinning layout. Bath troughs 300 and 30| ex tend continuously for the entire length of the 205, each of a size to accommodate a. pin 206. Pin machine, pump units 303 being provided ‘at Figure 11, the hub of spider 203 is provided with 17 29,410,673," spaced points along the lengthoftrough 300, each to serve a spinneret 304. In the modified type of apparatus now under discussion, the thread follows much the same course as in the machine of Figure 1. The thread leaving a spinneret 30d in trough 300 is passed over a long path guiding device 305 and a godet 300. From godet 300 it may be led into the bath of trough 30a', and from thence to a thread-stor age, thread-advancing device indicated generally at 301 or it may be led directly to said device. After device 301 is threaded up, by winding a thread band adjacent the supported end thereof as described in connection with device Il of Figure 1, the thread is led to a temporary col lecting device '308 which is bodily moved to a po sition adjacent another thread-storage, thread 18 and the bearings therefor, 'operate in a protected zone. ` Freely rotatable roller 3|0 is mounted on ay stub shaft, the end of which is supported in hous v ing 32|. The godet 30B is threaded as a unit ‘ as shown in Figure 30, a number of convolutions being wound around rollers 3l? and 3|8 to assist in preventing slippage. Note also that the sur face of roller 3|?k is corrugated',` also in further ance of the prevention of slippage. After the thread leavesgodet 303, it may be led into a second bath located in trough 30|, around an immersed freely rotatable roller 33|` and then to thread-storage, 'thread-advancing' unit 301 over guide roller 3,32. It will be under stood that the threading arrangement shown in Figure 29 is merely exemplary showing the me advancing device designated generally at 300. chanical possibilities of the illustrated appara On this device further treatments are consum tus. It is evident lthat long path guiding device mated. From there the thread is led to a col 20 305 may be used either with or without subse leoting device indicated generally at 310. quent passage of the thread through bath 30|. Guiding device 305 is of particular utility in ' In the latter case, of course, the thread is led conjunction with the spinning of viscose yarns, directly from godet 306 to thread-storage, thread and is used to prolong the period that each suc advancing device 301. Similarly, device 3.05 may ceeding portion of the thread is immersed in the 25 be omitted and the thread led directly Yto godet acid spinning bath. As an example, guiding 300 and from thence either through the bath device 305 may be used to further advance re of trough 30| or directly toA thread-storage, generation to thereby modify certain character thread-advancing device 3.01 dependent upon `the istics of the yarn as for instance strength, elon particular chemical treatment undertaken. ~It gation, chemical composition in the following so will be understood that godet 303 must be driven stages of the process. structurally, guidance de in timed relationy with the spinning pump and vice 305 consists of two immersed grooved pul hence it is connected with 321 by means of suit leys 3H and 3|2 mountedv for free rotation on able drive mechanism. " ~ ' studs 3|3 and 3M which in turn are carried by Thread-storage, thread-advancing device 301 a brace SI5 mounted in a support 3|0 attached 35 is similar in structure and operation to the cor to the front edge of bath trough 300 and extend responding unit || of the continuous spinning ing therein. When spinning is begun on the machine of Figures l and >12. It isthreaded up machine of Figures 29 and 30, device 305 is tem in the same manner and it will cause axial feed porarily raised above the liquid level in trough of spaced connected coils of thread wound there 300 so that spinneret 303 is first led around pul 40 around. Unit 301'consists of two rollers 333 and ley 3|| and then pulley 3|2 and so on until all of the plural grooves of these pulleys are occu 334| mounted on axially extending shafts 335 and 336 lying in th'e same vertical plane -which are supported at a common end. Each shaft is pro vided with sprocket 331 over which is trained pied. Thereafter, the device is restored to nor mal position immersed in the bath of trough 300. The godet consists of two rollers 3|1 and 3I8, 45 an endless chain 333 so that both rollers will be the former of which is driven while the latter driven at the same speed. The power source for is mounted for free rotation. Roller 3|1 is keyed driving rollers >333 and 334 through their respec at 3|0 to a shaft 320 which extends into a hous tive shafts is a shaft 330 caused to rotate by any ing 32| supported from the adjacent edges of conventional means not shown. Shaft 340 is troughs 300v and 30|. At the end of shaft 320, 50 connected vby va sprocket and chain drive to a remote from the point of attachment to roller shaft 36| which extends for Vthe full 'length of 3|1, gear 322 is attached. This gear meshes with the machine. At. spaced points along the length ' a gear 323 at the upper end of a vertical shaft of shaftl 34|, gears 30.2 are. located, one being 324. The lower end of shaft 320 is also provided provided for cooperation with a corresponding with a gear, the latter being designated -by the 55 gear 323 mounted for rotation with shaft 333. numeral 325. Gear 325 is adapted to mesh with Thus, shaft 338 is caused to rotate and through one of a number of gears 320, attached at spaced chain 339 drives shaft 335 at an identical speed. points along a drive shaft 321 which extends for Hence' the peripheral speeds’ of rollers 333 and v the full length of the machine. Shaft 321 is 3,30 will be identical. ' driven by any suitable source of power, not 60 t will be recalled that lower roller 4_3 of unit shown, through a conventional P. I. V. trans | i' is mounted with its axis extending truly hori mission and is adapted to drive each godet roller zontally while the axis of upper roller 45 extends 3|1 through its'gear train 320, 325, 323 and 322. generally horizontally but slopes in the direction Since godet roller 3|1 is adapted to operate ofthe unsupported' end of the unit. rl‘his ar in conjunction with liquid chemicals carried 65 rangement also prevails _in conjunction with from the spinning bath by the thread, it is nec thread-storage,v thread-advancing _unit 301. ,The essary to protect the driving gears therefor. To shaft 330~for lower-.roller 334 is mounted in anti this end, roller 3|'1 is provided with a raised» an friction bearings 344 supported in fixed-position nular flange 328, coacting with a flange 32,0 to fromj a plate 3,05 bolted to frame 302. On the protect its hollow interior from corrosive liquids. 70 other hand, shaft v335 is mounted for movement Within this protected Zone a sleeve 330 is located, ina vertical planeso> that the angle of con the sleeve being provided with anti-friction bear vergence ofthe axes of- rollers 333 and; S30-may ings for shaft 320. Since the sleeve is protected, be varied to produce varying coil spacings .of liquid seepage into housing 32| is not possible. thread wound around Athe .two rollers. ' Hence gears 322 .and 323, their respec-tive shafts 75 Once the adjustment ofthe angleI of shaft 335 19 „ . has been effected in a manner to cause coil spac ing in conformity with the time factor of the treatment effected on thread-storage, thread-2 20 nì'ëëhahismi for example, of the» type'employed» in coning machines. - l The unit 369 is made up of two rollers 389 and 38|, the axes of which lie in the same vertical, plane and are convergent in the direction of the: unsupported end of the rollers. As before, thee axis of roller 33| is truly horizontal, while the: advancing unit 331, that unit is threaded up in the manner previously described in connection with unit |I, see Figure 1. The thread is passed from roller 33| in bath trough 33| to roller 332 axis of roller 38B slopes downwardly from' right, adjacent the supported end of unit 301. From to left as it is viewed in Figure 12. Rollers 389i this roller it goes onto the thread-storage, thread and 38| are carried on shafts 332 and 383, respec advancing unit and it leaves that unit adjacent a tively, supported in bearings 384 and 385 suitroller 365a. The thread is led around roller 365 ably attached in any convenient way to the left and from thence to a roller 366 (Fig. 12) disposed hand main frame generally designated at 386i.' adjacent the supported end of unit 399. As is' the Bearings 385 are fixed, and shaft 383 carries a case of .the apparatus illustrated in Figure 1, the apparatus ofFigure 12 compri-ses two units 15 gear 381 which meshes with a gear 383 carried on a main drive shaft 383. Shaft 389 is similar 301 and 339 which are disposed on opposite sides in structure and function to shaft 34|, a plu of the machine. Hence, it is difficult to pass rality of gears 388 being provided at spaced the thread from roller 365a to roller 366, by solely points along its length, one for coaction with manual means. As a consequence, a rocker arm 361 (Fig. 13) is provided for the purpose of 20 each gear 331. In this regard, it will be under stood that a gear 331 is associated with each moving a temporary collecting device 368 from unit 389. In a manner similar to the arrange a point‘adjacent Vthe discharge end of unit 301 ment shown in conjunction with unit 331, roller to a point adjacent the takeup end of unit 309. 336, through its shaft 382, is driven from shaft Arm 351 is mounted for pivotal movement about shaft 34|, anti-friction bearings 339 serving to 25 333. The drive is a chain and sprocket one indi cated generally at 336. ~ connect the two. Within the housing defining Again in the interest of controlling the space arm 331 a pulley 310 (Fig. 13) is located, con between adjacent coils on the thread-storage, nected by a V-belt 31| with another pulley 312. thread-advancing unit, the upper shaft 382 of This pulley is keyed to a shaft 313 which like unit 369 is rendered angularly adjustable. The wise carries a temporary collecting device 368. adjustment is effected by pivotally attaching a Thus, the rotation of shaft 34| is carried over plate 334a, which supports bearing 384, at a to temporary collecting device 333. In View point 39|. Pivoted plate 394g, is provided, at a of the fact that pulley 31|)- is somewhat larger point remote from pivot point 39|, with an ex than pulley 312, the -peripheral speed of collecting tending portion 332 onto which a threaded rod device 368 is somewhat increased. The two con 333 is pivotally attached through a bifurcated necting pulleys areso adjusted that the takeup member. Threaded‘rod 393passes throughk a speed of device 368 is justbarely in excess of bifurcated bracket 364 iixedly attached to main the delivery speed of rollers 333 and 334 so that frame 336. Within the arms Vof bracket 333 a the thread will not slack during a threading up hand nut 335 is located. It can be seen that by operation. Upon reference to Figure 13, it will 40 turning nut 395, the length of threaded rod 393 be seen that a pair of stops 314 depend from the between that nut and the point of pivotal attach lower edge of arm 361. These members cooper ment to projecting portion 392 is varied and ate with a stop 315 attached in any convenient that the effect of this variance will be to tilt manner. to a portion of the machine frame so the plate carrying bearings 384 in which shaft that arm 361 will, by gravity, always assume the 382 is lodged. same eXtreme positions, regardless of whether A small sprocket located rearwardly of gear collecting device 398 is adjacent unit 331 or unit 338 drives a chain 396, which in turn drives a 339. sprocket 391 carried on a stub shaft. The stub It can now be seen how temporary collecting , shaft also carries a pulley 333 which is connected device 368 is operated. 'I’o move that device from by a belt 399 to a pulley mounted on a stub shaft its position adjacent unit 331 to the broken line with roller 366. Thus, roller 366 is driven through position shown in Figure 12 adjacent the sup connections so adjusted that it has a takeup speed ported end of unit 309, a crank 316 (Figs. 12 and just a little in Vexcess of the delivery speed from 13) is operated, this crank causing rotation of a 55 unit 301. This assists in threading up when the sprocket 311, which, through a chain 318, oper closed coil is wound near the unsupported end of ates a sprocket 319 keyed to the housing bearings unit 309 in a manner hereinbefore described. If of arm 361. It can be seen that rotation of crank unit 369 is threaded upbywinding a closed coil 316 will cause the desired `movement to take adjacent the supported end of component rollers place, the rockingA of arm 361 being entirely inde thereof, >there may be some diiìculty in conjunc pendent of pulleys 210, which, of course, is keyed tion with bath trough 406. As a consequence, to shaft 34|. Once the temporary collecting de that trough is supported on a bar 49| which is vice 368 has been moved to the broken line posi pivoted at 402 to main frame 38.3.' Approximately tion of Figure 12, the thread is broken adjacent midway between pivot point 432 and the free end that device and is led over roller` 363 after which 65 of trough 463 an L-bracket 463 is attached to bar 49|. Against this bracket a roller 494 is nor time the coils are wound around the rollers of mally pressed through a bell crank 435 pivoted unit 339 in the manner previously described in at 436 to a portion of frame 386.- Roller` 404 is conjunction with thread-storage, thread-advanc attached at the free end of one arm ofthe bell ing unit ||. The thread shown leaving unit 339 (Fig. _12) is passed over roller 319a and from 70 crank while the free end ofthe arm is provided withpan operating handle 401. When operating thence is led to collecting device 3|() of any con 'handle 491 is moved forward as viewed in Figure ventional type, the illustration of Figure 12 being 12, trough 460 is lowered to the broken line posi-> diagrammatic and intended to include a threadI tion. The movement is limited by a stop 408 eX supporting body driven at its periphery and used in conjunction with any conventional traverse 75 tending from a portion of frame 386. 2,410,673 21 22 It is contemplated that a device for tilting the trough under roller 334 likewise be provided. Of course, the lower troughs in Figure 12 may be stationary and the short trough arrangement pre viously described in connection with Figure 1 can then be used. > Because of the fact that a two-roller thread storage, thread-advancing device supported at another rotary treating device of the same ma chine located at a distance from said iirst device and to which the thread is to be applied and on which it is to be subjected to further treatment, separating the oncoming thread from said Waste bundle, directing the thread to said other rotary treating device to which the collecting device has been moved,’directing the treated thread issuing from the said last named rotary treating device venience, it is contemplated that all forms of the 10 to another separate rotating collecting device temporarily disposed adjacent said last named present invention be so arranged. treating device and movable between said device Modification of the process and the apparatus will readily be foreseen by those skilled in the art, and a twisting and collecting device and collect and I desire to include all modifications and vari ing it in a waste bundle, bodily moving said last ations coming within the scope of the appended 15 named collecting device while it is rotating and performing its collecting function into position claims. This is a division of my application Serial No. adjacent said twisting and collecting device, sep arating the oncoming thread from the waste 450,934, ñled July le, 1942, entitled “Process and apparatus for the manufacture of synthetic yarn.” bundle and directing the thread onto said twist I claim: 20 ing and collecting device, said thread being con 1. In the production and packaging of thread tinuous and being kept constantly under tension by the method which includes forming a thread, after being formed and while being applied to all leading the thread continuously over a plurality of the aforesaid devices. of separate rotary treating devices in succession 3. In the production and packaging of thread spaced at a substantial distance from each other 25 by the method which includes forming a thread, but constituting a unitary continuous spinning leading the thread continuously over a plurality apparatus on which the thread is subjected to of sets of rotary treating devices in succession successive treatments for ultimate collection in and a final twisting and collecting device each treated final form in a package, the method of treating device being composed of at least two initially transferring the thread from one rotary 30 treating cylinders over which the thread is treating device to the next succeeding device passed in helical formation, said devices being which includes leading said thread over a first spaced at a substantial distance from each other rotary treatment device, temporarily collecting but operating in co-relation with and constitut the thread in a waste bundle on an independently ing a unitary continuous synthetic thread spin rotated separate collecting device temporarily dis 35 ning machine on which the thread is subjected posed adjacent said ñrst rotary treating device, to a plurality of treatments for ultimate collec maintaining the oncoming thread under tension tion in treated and twisted final form in a pack while it is being so temporarily collected and, age, the method of initiating the operation of the one end only may be threaded up with great con while so collecting the thread, bodily moving said machine comprising leading said thread over a collecting device while it is rotating and perform 40 ñrst set of said rotary treating devices, tem ing its collecting function into position adjacent porarily collecting the thread in a waste bundle the next succeeding rotary treatment device lo on an independently rotated separate collecting device temporarily disposed adjacent said ñrst cated at a distance from said first device and on which the thread is to be applied for subjection set of rotary treating devices, maintaining the to continued further treatment, separating the 45 oncoming thread under tension while it is being oncoming thread from the Waste bundle and di so temporarily collected,- and while so collecting recting it onto said other rotary treating device to the thread, bodily moving said collecting device which the collecting device has been moved and while it is rotating and performing its collecting removing the waste bundle, said thread being kept function into position adjacent another set of under tension from the time of its formation until 50 rotary treatment devices of the same machine the time that it is placed on the second treating device. 2. In the production and packaging of thread by the method which includes forming a thread, leading the thread continuously over a plu rality of separate rotary treating devices in suc cession, and a ñnal twisting and collecting de vice all spaced at a substantial distance from each other but operating in co-relation with and constituting a unitary continuous spinning ma chine on which the thread is subjected to a plu rality of successive treatments for ultimate col lection in treated and twisted final form in a package, the method of initiating the operation of the machine comprising leading said thread over` a ñrst rotary treating device, temporarily collecting the thread issuing from said device in a waste bundle on an independently rotated sep located at a distance from said ñrst set and to which the thread is to be applied for subjection to continued further treatment, separating the on ' coming thread from said waste bundle directing 55 the thread to said other set of rotary treating de vices to which the collecting device has been moved, directing the treated thread issuing from said last named set of rotary treating devices to another separate rotating collecting device 60 temporarily disposed adjacent said last named set of treating devices and movable between said devices and a twisting and collecting device and collecting it in a waste bundle, bodily moving said last named collecting device while it is ro 65 tating and performing its collecting function into position adjacent said twisting and collecting de vice, separating the thread from the waste bun dle directing the thread through the twisting arate collecting device temporarily disposed ad device and directing the twisted thread onto a jacent said flrst rotary treating device, main 70 rotating ñnal packaging device operativelt7 asso taining the oncoming thread under tension while ciated with said machine, said thread being kept it is being so temporarily collected, and while constantly underl tension after being formed and so collecting the thread, bodily moving said col while being applied to all of the aforesaid treat lecting device while it is rotating and perform ing, collecting and packaging devices. Y ing its collecting function into position adjacent HERBERT O. NAUMANN.