ov. 5, 1946. QAEÜASG H. o. viàum‘uhfuxlw APPARATUS FOR THE MANUFACTURE OF SYNTHETIC YARN original Filed July 14, 1942 10 Sheets-Shee’rI l , 11'/ WZ /03 406’ «f0.4 . _94 420 42% » ,m2 9.2 V _ ' 120 Q. .42 414 J 40/ 232 @www ßezßen’â/Vamazlzzl 'e . www Nov. 5, 1946. H.k o. NAUMANN ZAMASÜ APPARATUS FOR TI-‘IE-MANUFACTURE OF SYNTHETIC YARN original Filed lJuly 14, 1942 lo-sheets-sheet 2 Nov. 5„ l946„ H. o. NAUMANN 2,410,456 APPARATUS FOR THE MANUFAGTURE 0F SYNTHETIC YARN Original Filed July 14, 1942 l0 Sheets-Sheet 3 408 ,Ierßeriû/Vazmm A Snow@ . Nov. 5, 19.46. I .l , H. o. NAÚMANN 2,410,456 ' APPARATUS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Filed July 14, 1942 l0 Sheets-Sheet 4 ‘Aww/Molo Nov. 5, 1946. 2,410,456 H. O. NAUMANN APPARATUS FOR THE MANUFACTURE oF SYNTHETIC YARN Original Filed Júly 14, 1942 1o sheets-Sheet 5' 3/ 77 53 66 400 @www Nov. 5, E946. H. O. NAUMANN ’ l 2,410,456 APÈARATUS FOR THE MANUFAGTURE QF SYNTHETIC YARNl original Filed July 14, 1942 1o- sheets-sheet e F 460 Tlrf Nov. 5, 1946. , ` ' APPARATUS FOR H. O. NAUMANN ' 2,410,456 MANUFACTURE OF SYNTHETIC YARN Original Filed- July 14, 1942 l0 Sheets-Sheet 7 Nov. 5, 1946. H. o. `HAMMAM: 2,410,456 APPARATUS FOR THE MANUFACTURE oF SYNTHETIC YARN original Filed July 14, 1942 l0 Sheets-Sheet 8 NOV. 5, '1946. - H_ Q_ NAUMÀNN _2,410,456 APPARATUS FOR THE MANUFACTURE OF SYNTHETIC YARN Original Filed July 14, 1942 lOlSheets-SheetAS l @giá 30/ Gum/wang NOVo 5, 1946. o, NAUMANN APPARATUS FOR THE MANUFACTURE l 52,410,456 SYNTHETIC YARN -Original Filedl July 14, 1942 l0 Sheets-Sheet 10 Vî Iuulllflm" 2,410,450 Patented Nov. 5, 1946 UNITED STATES PATENT OFFICE 2,410,456 APPARATUS FOR THE MANUFACTURE OF SYNTHETIC YARN Herbert 0. Naumann, Englewood, N. J., assignor to North American Rayon Corporation, New York, N. Y., a corporation of Delaware original application July V14, 1942, serial No. 450,934. Divided and this application June 3, 1943, serial No. 489,554 3 Claims. (Cl. 18-8) 1 2 This invention relates to the manufacture of threads of synthetic origin, and is more particu larly concerned with a process and apparatus for the continuous manufacture of wet spun threads. Continuous spinning as the name implies, com prises the introduction of a hydrated colloid into a spin bath to form a thread, the after-treatment 0f successive portions of the freshly formed `thread while it is moving from the spin bath to a point of collection and the collection of the completely finished thread into a commercially salable package. The very nature of continuous Other advantages of this invention will be apparent upon consideration of the following de tailed description thereof in conjunction with the operation renders the handling of the thread, for Figure 4 is a schematic perspective View of a instance from one treating unit to another or during the exchange of an empty bobbin for a full one, extremely diñicult. Deft 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 `í 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 duction than is absolutely necessary for the transfer. Another object is to properly support the thread at all times, i. e., during the threading annexed drawings wherein: Figure 1 is an end view, 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 1; Figure 3 is a view in side elevation illustrat ing a portion of the left or finishing side of the machine of Figure 1; ‘ typical driving arrangement for the spinning machine shown in Figures 1 to 3 inclusive; Figure 5 is a top plan view of the entire mech anism for transporting thread from one to the other side of the spinning machine of Figure 1 during threading up thereof, the> underlying thread-storage, thread-advancing units being omitted for convenience in illustration; Figure 6 is a top plan view partially in section, taken along the line 6_6 of Figure 1 and servingy to further illustrate the mechanism shown in Figure 5; Figure 'l is a fragmentary plan View of the operating deck with which the left side of the spinning machine of Figure 1 is provided; Figure 8 is a perspective View of the ring twister up of the machine or during the exchange of a 30 threading apparatus used in conjunction with full bobbin »for an empty one and hence facilitate the »present invention; the handling of the thread during such periods so Figure 9 is a View in longitudinal section oi’ a temporary thread collecting device used in con by employing this invention which embodies 35 junction with the threading up of the ring among its features forming a thread, leading twister shown in Figure 8; the formed thread through various stages of Figure 10 is a View in section taken along the as to avoid undue Waste. The above and other objects may be attained treatment, temporarily collecting the thread into line lil-lil of Figure 9; . a waste bundle between its point of origin and Figure 11 is a View in section taken along the its point of collection, meanwhile performing an 40 line ll-Il of Figure 9; intra-related thread-handling operation such as Figure 12 is an end View, partially in section, transferring the thread from one unit to another of a spinning machine constructed according to or exchanging a full thread package for an this invention but somewhat modified for con empty one, separating the waste bundle from the venient attachment to preexisting spinning equip oncoming thread and directing the oncoming, 45 ment; thread to successive elements of the machine for Figure 13 is a View in side elevation illustrating further manipulation. a portion of the right or spinning side of the Another feature of the invention is a collecting machine of Figure 12, one godet driving connec device movable from station to station on the machine upon which the oncoming thread may 50 tion being shown in section; Figure 14 is a view partially in side elevation be wound preparatory to or while it is being and partially in longitudinal section of the lower transferred from one element of the machine to roller of a thread-storage, thread-advancing unit another and means to arrest the collecting device illustrating a movable trough for the collectio and hold it in proper relation to the elements » 55 vof used treading liquids; of a. station. - 2,41o,456 ~ 3 4 Figure l5 is a View in elevation of the unsup ported end of the roller of Figure 14; and Figure 16 is a plan view taken along the line Iii-I6 of Figure 14. It will be understood of course that treating liquids are supplied to the yarn on the rollers 45 Referring‘nowin detail to Figures 1 to 4, inclu 5 sive, it will be seen -that the »spinning machine illustrated includes a number or" spinning units, each consisting basically or" a spinneret Ii] and a and 46 by supply pipes 232 and 234 respectively. In the operation of the machine, it is evident _that the rollers ¿i5 and ëñmust be driven at the same peripheralspeed. This is best done by driv ing shafts 56 and 55 (Fig. 4) in synchronism from a common power source or by driving one shaft pair of thread-storage, thread-advancing devicesl from the other. Shafts 5B and 5S are provided II and I2. On devices II and l2, the freshly formed thread is subjected to all required .after with ¿pinions ‘i3 and i4, respectively, of like size, treatments, whereupon it is concurrently twisted both pinions meshing with a driving gear 'I5 driven from a gear i6 on main power shaft 25. and collected on twisting spindle I‘3 in _iinished form. For convenience in illustration, all ,of lthe While it is important that the peripheral speeds of rollers 45 and 46 be identical, it is evident that component units of a continuous spinning ma their takeup speed may be in excess of the deliv ery speed of the-adjacent godet 3l so that stretch ing may occur between each unit I I and its asso ciated godet 3i. Arrows in Figures l, 2 and 4 >serve to illustrate the direction of rotation of the rollers of unit II. It will be recognized that the axial movement chine constructed accordingto the -present inven tion have not been illustrated. It is contem plated, however, that a single machine include some 50 to 70 spinning units arranged in align ment as illustrated. While it will be increasingly _evident upon consideration .oi the following de scription that this invention is adaptable to» any ,type of wet .spinning operation involving the ' of the coils of thread from the supported toward the unsupported end of thread-storage, thread advancing device i I will occur only after that de preparation of a thread in the lform of a hydrated colloid, ,the apparatus will .be specifically dis vice has been threaded up. `cussed in .conjunction with ,the manufacture 4of course, ñrst necessary to initiate rotation of To do this it is, of .viscose rayon. vshafts 56 and '59, which, through the intermediate ¿At spaced points along Vthe iength of the -rear gearing, cause rotation of shafts 41 and 55 .and wall of spin `bath container I4, godets 3l arepro the rollers 4.6 and 45, carried thereby. This is vided, each of these consisting v,of a driven wheel 30 done by starting motor I'I, which action likewise `3,2 .and a freely rotatable one 33. The vthread causes operation ofthe pumps I5as well as godets Yissuing from .eachspinneret .I0 _is first led around 3 i. At this stage, the spinning solution is extrud the respective godet _3i and .then to the thread ed from each spinneret I0. The operator then storage, thread-advancing unit II. grips the material issuing from the spinneret, As can «be seen in the drawings, each unit VII >is comprised of two generally horizontally ex pulls it up from the bath and winds the result „tending .rollers .£5 and A6. ing thread several times around godet wheels 32 and 33, making enough «convolutions .to prevent slipping. The thread is .then ledfrom the godet, d v Although rollers 45 and .45 both extend gen erally horizontally, it is the usual practice to .dispose >,theraxis of roller 46 ina truly horizontal and »wound around rollers 45 and 46 in the form 40 of a closed coil consisting of a number of con .direction while that of roller 45 is slightly in clined with _respect to the horizontal so that thread wound around `the two rollers will neces tiguous or superimposed convolutions. This coil may be Wound near the supported end Vof the unit I i in which case it will move as a body tothe un _Íïsa-rily progress in _the direction of convergence, supported end of the unit and the successively spun thread will be wound on in a position deter i. e., toward the »unsupported end 4of ythe unit. As illustrated in Figure 2, rollers 45 .and 46 which constitute unit .LI are arranged `in such «e »Way «that ,their .axes-.lie the Same vertical plane :but are convergent in the direction of the unsupported end of the unit. This is convenient v from the standpoint of space economy, but is vnot essential. It is evident that the axial feeding .theory will likewise obtain in any .arrangement involvingat least -two rollers, the axes .of which lie in intersecting planes. The thread leaving the godet .'3.I is first led .on to the upper cylinder 45 of unit I I over a guide mined vby the >angular.disposition of the roller 45. As the coil begins to move toward the unsupport ed end of _unit I I, the operator drops the connect ing -thread into freely rotatable guide roller 6,8 so that Aeach newly »formed coil will be located _di rectly adjacent the supported end of the device, the thread is bro-ken between the unsupported , end of the unit II, the thread is broken between vthe coil and the spaced convolutions on the roller and the coil is removed and discarded. The re sulting free end or” thread is then led under roller ‘1,5 and over roller '1I and onto- a rotating tem roller SS, located adjacent the supported end or" porary collecting device 71. This device is moved `cylinder ¿15, said guide roller being supported on bodily from the >position shown in Figure 1 to a a 'bracket extending from collection trough 69 60 position overlying a guide roller 'I8 bearing a which underlies roller 45. YIt is led off of the position with respect to thread-storage, thread opposite side of upper _roller 45 of _unit I I, under advancing unit I2 similar to the position of guide a guide vroller "Iii adjacent 'the free end of the it with respect to unit II. Unit I2 may then be unit, over a guide roller v'II and from thence over threaded up in the manner just described. a >guide roller ’I8 to a thread-storagefthread 65 >Upon consideration of Figures 1 and 2, it will advancing unit I2 which is mounted on the oppo site side ‘of themachine. Guide roller 'i5 is sup ported on `a lbracket extending upwardly from ` be seen that some difficulty may be encountered in winding a closed coil aroundrollers 45 and 46 near their supported ends because of bath trough collection trough ‘I2 underlying roller 46, while '12, It is entirely possible to mount bath trough guide roller 'II is supported on a bracket attached 79 i2, however, in such a way that it may be .tilted -to a _portionof` the machine frame. The path to a position sufliciently spaced from the roller so ¿of Vthe thread to and from unit II is shown in as to obviate interference with threading up as >Figure l, the spaced coils wound around the two previously described; in this .Connection see Fig rollers being omitted for convenience in illustra ures 14 through 16 to be hereinafter more fully `tion, see Patent No. 2,194,4761130 Hartmann et al. 75 described. The tilting of trough 12, while of con 2,410,456 5 veniencein some installations, is inno sense es sential. In Figure 1 it can be seen that the fre'e bodily movement of the temporary collecting de end of roller L36 extends beyond the end of trough 12. When this arrangement is used, any of the vice Vacross the machine from right to left in Figure l that the` cumulative take-up effective at thev free end of unit II is very slight in excess thread-storage, thread-advancing units may be threaded up by winding the closed coil adjacent the unsupported end thereof and manually lead the occurrence of slack is avoided while the ofl the delivery speed of that unit. In this way, thread is not subjected to excessive tension. ing the connecting thread over freely rotatable , So that a plurality of adjacent pairs of thread guide roller 63. If this is done, a stop'guide 'I9 storage, thread-advancing units may be threaded must be used to prevent the coil from running off 10 up with maximum convenience, another small the end of the unit while it is threading itself. cylindrical temporary collecting device 8l is dis In Figure 2 it can be seen that guide 'I9 is in the posed in horizontally offset position with respect form of a porcelain loop pivotally attached to a to device Il' a distance equal to the space between bracket arlixed to trough 69. In the full line posi the axes of ,adjacent units. Device 8| is sup tion of Figure 2, guide 'I9 functions to prevent Athe ported and driven from a motor' 32 of structure thread loop from moving axially off the end of and functional characteristics similar to motor the unit. When not in use, guide'lâ may be manually swung to the broken line position of 8d. Upon reference to Figures 1 and 5, it can be seen that collecting devices ‘I'I and SI are nor mally disposed on opposite sides of the machine. Figure 2 where it will not longer contact the thread connecting tangentially rollers 55 and 46. 20 Thus, when collecting device 'I'I is overlying a thread-storage, thread-advancing device I I, tem I When the closed coil is wound adjacent the free porary collecting device BI is in a similar posi end of unit II, around cylinders 4'5 and 46, the tion over an adjacent thread-storage, thread threading action of the unit is brought about by advancing device I2. ì the winding of additional coils of newly spun Upon reference now to Figures 2 and 3, the thread thereon and by the pulling of a few of the ..25 manner of threading up a, machine by the use convolutions off of the closed coil in the direction of collecting devices ‘I'I and 8l may be ascer of the supported end of the unit, the latter oc tained. In Figure 2, temporary collecting device TI is disposed above a thread-storage, thread the speed of delivery of the thread thereto. As 30 advancing unit II designated by the reference curring when the takeup speed of the thread storage, thread-advancing device is in excess of ~ threading up commences, the spacing between coils will be relatively great, but will gradually lessen until the spacing predetermined by the angular adjustment of roller 45 has been reached. At this time, the closed coil can be broken off and discarded and the thread led to a new stage- as, for example, temporary collecting device -I‘I in the case of a unit I I- ' ' lletter A. At the same time, temporary collecting device 8l is over a thread-storage, thread-ad vancing device l2 in aligned position behind the unit I I marked B on Figure 2. When unit A has been threaded up, the operator leads the free end of thread around temporary collecting device TI, which is , driven by motor 8G continuously throughout the threading up period. Thereafter, motorßll is bodily moved to the opposite side-of - While the foregoing description of threading the machine, carrying with it the thread issuing up has been confined to the threading up of unit from unit A which is being concurrently wound ll, it is evident that exactly the same procedure on device Tl. At the same time, temporary col may be followed in the case of unit I2. Thus, the lecting device 8l is moved toward the operator trough underlying the lower roller of each unit on the spin bath side of the machine to a posi I2 may be moved away from the roller to permit tion over unit B similar to the position previously threading up by winding a closed coil adjacent occupied by temporary collecting. device 'Il -over the supported end of the unit or a guide such as unit A. Thus, one operator vonv the spin bath guide 79 may be used to perrr‘iit winding the closed side of the machine may be threading up a unit coil adjacent the unsupported end of the'unit. B while another operator on the finishing side Neither of these is illustrated in Figure l. It is contemplated, however, that a guide such as guide 50 may be threading a unit I2 in alignment with the unit II marked A. In this way, both of the ‘I9 be associated with the trough of the upper operatorsare continuously occupied. It will, of roller of unit I2 in the same manner that guide course, be understood that when the temporary `I9 is associated with trough 6E), After the thread-storage, thread-advancing' collecting device completes its bodily movement unit Il has been threaded up, it has been stated 55 across the machine,v it will have wound thereon a very small. amount of thread. This is treated that the thread is carried from a point adjacent as waste and the thread is broken by the operator the free end of that unit to a point adjacent the supported end of thread-storage, thread-advanc directly adjacent the collecting device and led from thread-storage, thread-advancing unit lII the position of temporary collecting devices ‘I'I to a small rotating cylinder 'I'I constituting a tem porary collecting device. Collecting device TI is breaks the thread adjacent temporary'collecting around the thread-storage, thread-advancing ing unit I2 so that the latter may be threaded up in the manner previously described. This move 60 unit in question in a> manner previously described. After the unit B of Figure2 has been threaded, ment is eifected by leading the free end of thread supported by and driven through suitablegear ing from a motor Si). Thus, the free end of thread is wound around rotating temporary col lecting device TI, and motor 89, with the 'tem porary collecting device, is bodily moved from and 8| is again reversed. The operator then device 8l and begins threading the unit I2 which 65 is in alignment with unit B of Figure 2. Thread storage, thread-advancing unit TI', in its return movement from the ñnishing side to the spinning side of the machine, carries no thread over tov a point above unit A since this unit has already right to left as viewed in Figure 1 so that tempo 70 been threaded. Accordingly, immediately after rary collecting device 'I'I is positioned adjacent breakage of the thread adjacent temporary col the` supported end of-thread-storage, thread-ad lecting‘device SI, asthe operator starts to thread vancing unit I2. The peripheral speed of 4the the unit I2 behind B of Figure`2, the entire as small cylinder _'I‘I constituting the temporary` co1 sembly supporting temporary collecting devices lecting device is so correlated with the speedof 75 'I‘I and 8l is moved to the right of Figure 2 a dis 2,410,456 8 7 damage of the equipment caused by either of tance equal to twice the distance between the» centers of adjacent units. This brings collecting members 89 or 8'I exceeding the full amplitude device ‘Ir'I over. unit I| marked C and device 8| ~ of' movement on screws 83 and ‘84. This is con over a unit I2 behind and in alignment` with unit veniently done by providing a magnetic brake |92, (Figs. 2 and 5) the control circuit for which is in circuit` with the limit switches. This brake D. When this. stage has been reached, the pre viously described operation is repeated and so on until the entire machine is threaded up. It; has been stated that motors 89 andi 82 and the temporary collecting devices supported and driven thereby are bodily moved across the width of the machine. This movement is effected by thev concurrent rotation of oppositely threaded screws 83 and 84v (Figs. 5 and 6) supported in rectangular frame 85. and in respective driving engagement. with interiorly threaded members 86 |92. is conveniently located on the end of the ro tor shaft of motor 93 opposite pinion 9.4. The bodily movement of temporary collecting devices 11: and 8| across the machine has now been described. It has been previously stated, however, that frame 85 is subject to bodily move ment lengthwise of the machine. To this end frame 85 is supported from a car |93' having two pairs of hanged wheels |94 and |95 which ride in rails |96 and |91 supported above the machine and 8l which surround the threaded shafts 93 and 94 and have depending Shanks 88 and 89 in any convenient manner, see Figure l. Wheels |95 may>` turn freely on axle |99 or may be at which serve to support motors 8.9 and 82, respec tively'` To prevent pivotal movement of motors tached thereto, the, only requisite being that the 89 and 82 and the assemblies carried thereby 20 wheel and axle assembly is freely rotatable. about threaded shafts 83 and 84 as axes, brought Wheels |99,` however, are attached for free ro tation at the ends of axle |99 and this axle, mid about by the rotation of those shafts, members way of its length, carries a keyed pinion I I9 which 86 and 81 are provided with arms 99 and 9| eX tending in mutually convergent relation at right is adapted to mesh with a rack III which ex angles to respective shanks 88 and 89. The free 25 tends for the full length of the machine at a po sition midway between rails I 99 and |91. The ends of arms 99 and 9| are slotted and receive manner of driving car |93 through rack and pin therein a guide rail 92 which extends for the full width of the machine and is suitably sup ion | |9-| || can now be described. To this end, ported in frame 85. ` „axle |99 is provided with a keyed sprocket II2 Since shafts 83 and 84 are oppositely threaded, 30 connectedL by a chain II3 with a sprocket ||4 on it will be apparent that, if both are driven, mem the rotor shaft of a motor H5. Thus, upon ro bers 86 and iS’I will moveacross frame 85 in op. tation of motor |I5, sprocket H2 keyed to axle posite directions carrying with them the respec H39> will cause rotation of pinion | I9, which mesh tive' motors 89 and 82 and temporary collecting ing with rack I | I, will pull the car |93 in a direc devices 'I'I- and 8 I. tion opposite to the direction of rotation of pinion The intermittent rotation of shafts 83 and 84 is H9. By energizing motor IIE, the car |98 is eiîected through a reversible motor 93, the. rotor moved lengthwise of the spinning machine. It shaft of which is provided with a pinion 94. Pin is desirable, however, that the lengthwise move ion 94 is operatively connected to threaded shaft ment> be controlled so that temporary collecting 83 through> an idler gear 95 which meshes with a _ devices 'I'I and 8| will be moved a distance ex gear 96 keyed to threaded shaft 83. A4 similar gearing arrangement including an idler 9T and a gear 98 keyed to shaft 84 serves to establish a driving connection between the latter and pin actly equal -to twice the distance between the centers of adjacent units. This controlled move ment is effected by so arranging the diameter of pinion ||9 that 360° of movement thereof will ion 94. Imove the car exactly the desired distance. Conveniently, the gearing connecting the rotor of lmotor 93 and shafts 83 and 84' isk en closed in a dust-proof housing 99. It can now be seen that for any given direction of rotation of motor 93, members 86 and 8'! will be driven in. opposite directions. It is necessary, however, ; that the direction of ‘bodily movement of collect ing devices 'I'I and 8l be reversed each succeed ing. operation thereof. It is for this reason that motor S3 is of a reversible type. The exact-con After completion» of this. movement, motor |I5 is auto matically cle-energized and the inertia thereof automatically overcome. This is eifected through atiming disc. I I9. keyed to axle |99 adjacent pin ion ||9. This disc, as may be seen in Figure 2, is provided with a notch and serves to position a switch arm II'I. Disc IIS is so disposed on axle |99 that the notch therein will be in registry with switch arm | |‘I upon completion of the desiredV struction of'motor 93 forms no part of this inven- , movement lengthwise of the machine. tion, it being contemplated that any conventional reversible electric motor of suitable character istics may be used. The motor is controlled through. a circuit, not shown, from a pair of push arm I l1 is normally held in a position to maintain the circuit vto motor I I5 closed. It serves to open buttons |99 and |9| , (Figfl) each of which serves to drive the motor in one direction only. The stoppage of motor 93 is effected automatically by a pair of limit switches `>of any conventional construction disposed on opposite sides of bar 92 adjacent one of its ends, one switch being in the path of each of- arms 99 and 9i'. Thus, forex ample, the rotation of motor 58' in one direction may be stopped when arm 99 reaches a predeter mined position and the rotation in the other di rection may be stopped when arm 9| reaches a similar predetermined position at the' same. end of frame 85. Since _motor 93 will necessarily de velop a certain amount of inertia in` operation, it is highly desirable that the» stoppage thereof Thus, the circuit to motor II5, however, when in reg istry with the notch of disc H8, and, at the same time, through relays to operate a magnetic brake I|8 of' a type similar to magnetic brake |92 pre viously described. Thus, motor II.5 is auto matically stopped. Initiationof rotation -thereof is effected through switch arms I I9 and |29 con nected at the ends of a long. shaft |2| which ex tends vfor the full width of the machine. Switch arms |.I.9 and |29 are disposed- ina position to `be conveniently operated from either side of the machine byvpull- cords». A linkage |22, k|28, |24 connects shaft I2I with switch box |25 in which the various controls for both motors’ I-I-âiand S3 are located, as well as the relays for the opera tion of the magnetic brakes. It can be seen that if the operator «pulls switch arm H9 and then .be effected instantaneously to prevent >possible 75 immediately releases it, motor4 H5 willv operate 9`> until the notch 1n disc | I1 to open the circuit. matically stop. On the ator should hold switch 2,410,456 ||6 permits switch .arm At this point it will auto other hand, if the oper arm I I9 during the time 10 tached to the bottom of and extending down wardly from housing 58. The free end of shaft 64 is located adjacent a removable dust cap 61 and is adapted for engagement by a socket wrench operated from the front of the machine. When in registry, motor ||5 would continue to- run. shaft 64 is rotated, bifurcated member 66 is Thus, while the lengthwise travel of car |03, when moved through agency of the nut, either closer initiated, is normally deñned by the mechanismy to or further away from pivoted end bearing 65 described, the starting and stopping thereof is of shaft 64, depending on the direction of rota. also fully under the control of the operator. 10 tion. Movement of bifurcated member 61 _toward Switch arm |20 is used to drive motor ||5 in the end bearing 65 lowers the unsupported end of other direction and is normally employed for re roller 45 while movement in the other direction turning the entire threading up assembly to one has the vreverse effect. Housing 58 is of course end of the machine after threading up has been pivoted about tubular support 63 to permit chang# that the notch in disc | I6 and switch arm I I1 are effected. ‘ Having now described the manner in which the machine is threaded up including the ap paratus for transferring the free ends from the units Il to their respective units |2, the details of the latter units will be discussed. ' Each unit I 2 consist-s of two rollers |26 and |21, supported at one end only, and having their free ends extending generally horizontally. As in the 15 ing the angular position of shaft 55 and the roller 45 concentrically mounted thereon. _Since screw means are used for altering the position of shaft 55, the arrangement is ` self-locking. >Note threaded shaft |44 which corresponds to similar 20 shaft 64 and dust >cap |4| through removal of which access to shaft |413 may be gained _in order to adjust the angular disposition of roller |26. Housing |32, which corresponds to housing 5| on case with lower roller 46 of unit | I, lower the other side of the machine, is mounted on a roller |21 is mounted on a, shaft which extends 25 portion of the mainframe in such a way that axially of the roller and is in a truly horizontal position. This shaft, designated by numeral |23, is provided with a driving gear` |29 keyed thereto which meshes with a lgear |30, keyed to a main shaft |28 extends in a truly horizontal position. It will be recalled that the angular position of shaft 41 is not adjustable. This is also trueoi shaft |28. _ drive shaft |3I. Drive shaft |3| is similar to 30. It is, of course, necessary that each upper roller drive shaft 5U and is provided with a plurality of |26 and its corresponding lower roller |21 `be gears |30, one for coaction with each gear |29 driven at the same peripheral speed. It is like, for each of lower rollers |21. Each meshing pair wise desirable that the take-up speed of unit I2 of gears |23, |3|| is disposed in a housing |32 be approximately >the same as the delivery speed ñxedly mounted on a portion of the main frame 35 0f unit | I. Upon reference to Figure 4, the man of the machine. Housing |32 ís provided with a ner of accomplishing this may be ascertained. bearing |33 for supporting shaft |28. In that figure, it can be noted that main drive Upper roller |26 of the thread-storage, thread shafts |32 and |31 are provided with gears |42 advancing unit | 2 is likewise provided with an and |43 respectively. These gears are driven by axially extending drive shaft, said shaft bearing 40 gear |44 on a shaft |45, the opposite end of which the ldesignation |34. Shaft |34 is provided with a carries a gear |45 in mesh with a, gear |41 which gear |35 which meshes with a gear |36 mounted rests against and meshes with driving gear 15. on main drive shaft |31. Shaft |31 is similar in The latter, it will be recalled, serves also to ac-V structure and function to shaft 59 and it is pro tuate shafts 54 and 59 to drive the component vided along its length with a number of gears |36 rollers of unit I I. By substitution of gears of var# corresponding to the number of rollers |26. The ious diameters in the gear train |44, |46, |41, it pairs of gears |35 and |36 are mounted in housing is possible to bring about any desired speed on the |38, each of which extends for a considerable dis part of rollers |26 and |21 with respect to rollers tance into the interior of a roller |26. Housings 45 and 46. Since, however, all rollers |26 and |21 |38 are elongated in this manner so that the 50 are driven from the same gear, |44, it is apparent bearings for shaft |34 are spaced apart a suíii that they will have identical peripheral speeds. cient distance to insure rigidity of that shaft and Like the rollers 45 and 4S, the rollers |26 and |21 to prevent wobbling movement of roller |26 in re are provided with liquid supply pipes 263 and 21 I, sponse to radial thrust. Only one bearing for and with liquid collecting troughs 214 and 211 shaft |34 can be seen in Figure 1, this being desig 55 respectively. nated by the numeral |39. Note that the elon As has been previously stated, thread-storage, gated housing structure is likewise carried out thread-advancing unit I2 is threaded up inthe in lower roller |26. The remaining portions of same manner as the respective unit |I. vOn housings |32 and'|38 will be hereinafter more thread-storage, thread-advancing unit I2, the fully described in conjunction with the detailed 60 thread is subjected to further aftertreatments, construction of rollers |26 and |21. and, when it leaves that unit, is in iinished form. It is contemplated that housing |38 be mounted It is then led directly to a ring -twister mecha for pivotal movement on tubular support 806, the nisrn, best shown in Figures l, 3 and 8 to 11, in construction of which is conveniently identical clusive. The twister mechanism shown is largely to the construction of tubular support 63 asso conventional, being somewhat modiñed, however ciated with housings 58. It is understood that to fit under unit >I2 in the interest of space con the angular disposition of shaft |34 may be varied servation. Twister spindles I3 are driven in pairs by the employment of a construction such as that from belts |48 which pass over and are propelled used in changing the angular position of shaft 55. by a cylindrical pulley |49 keyed to a power shaft LThe apparatus employed is identical to that used |5|l driven in any convenient manner, not shown. in conjunction with roller 45. In the structure ’The usual idler pulleys |5| are associated with associated with roller 45 (Fig. 1) a shaft 64 is belt |48 and a counter-weighted belt tightener provided with threads over which rides a nut pulley |52 is employed. which is pivotally supported between the depend I3 is provided with the usual brake |53 for local# ized stoppage of the spindle for the exchange of ing arms of a bifurcated member 66 in turn at Each twister spindle »2,410,456 11 1'2 spools. The brake,.itself, is conventional in form but is >provided with vnovel engaging‘means con sisting of a depending arm |54 cooperating with delivery speed ,from unit l2 :being contemplated. Thus, thethread ‘will be under `veryslight 'ten an upwardly extending arm >|55 provided with a bifurcated end. Arm '|55 is driven through a rod |56 provided with a curved operating surface 4|51 sion .at >this stage and will ëfollow the path des ignated by the reference letter A vin Figure 8. The operator then pulls the thread A to therleft, as viewed in Figure r6, and -threads it'throug‘n a adapted to be engaged by the -leg of the oper guide |12 mountedon the ’motor-drum assem ator as he stands beside the machine. A spring |58 normally biases rod |56 and hence arm |55 to release position. Thus, depending arm |54 is normally biased ina clockwise direction' as viewed bly and through guide |69 above the twister spindle. The thread is then passed under `trav eler |1|. Once this is-done,‘the thread is >broken between twister traveler |-~1| land the drum,'the free end being thrown :into therapidly rotating twister-bobbin lïâ‘mounted -on spindle |3 shown in Figure 8. The relatively small amount <of in TFigure 1 thereby urging brake |53 away from the bottom> of the -spindle,«arms |54 and >brake arm -|53 functioning mechanically as a bell crank. Upon reference to Figure 7, it will be 15 thread collected on the bobbin of drum |62fm'ay noted I.that operating surface |51 is disposed in -be removed therefrom and discarded as waste. registry with notched-out portions |59 ci a grill In order that themotor-drum unit |62-|66 can work |60 lserving as a platform on which the be'rnoved from spindle to spindle as the respec operator may stand while threading unit i2. tive twisters associated >with each unit `f|2 are Grill work |68 is supported by braces |6| ex 20 threaded up, the wheel-rail 'assembly is provid tending from the Amain frame of the machine. ed. As a consequencawhen‘one ‘twisterfspindle As‘can be seen in Figure 1,»braces |6| constitute has been served, the motorcar is moved "to the guide bearings for rod |56. The operator, on the next “adjacent one. At-each unit, however, -the other hand, stands .on .the >.ground floor of the motor is locked .in operative position. This is operating room when twister. spindle |3 is thread done by means of a lever |11-4 pivoted at |15 to ed up, and, as -a consequence, .the twister brake the motor housing. Lever |14 is provided with operating surface is located for manipulation an operating yhandle |~16Yand a'pin |11, adapted from that level. for cooperation with'holes |18 provided at spaced It is contemplated that the thread issuing Vfrom points along lowertrack |68. ‘Whenpin | 11 is unit |2 will be .delivered at a rate approximating 30 received'in a hole 418, the 'motor 'and 'drum unit 60 to `100 meters a minute. Ring twisters, on is restrained against movement along the'tracks. theother hand, are normally used with thread When it is to be'moved, however, the handle '|16 being ¿pulled from a stationary package. As a is pushed in toward the ‘twister Yspindle there consequence, it is impossible for an operator to by extracting pin |11 from hole |18 and Vallow thread up the traveler of a ring twister with a ing the device to be manually moved along the thread moving at a speed such .as is here con track to the next stage. templated, theslack produced being so great as In order that drum-motor assembly |62 and to cause substantial diñiculty. For this reason, |63 need not be spotted at v4the various stations, a novel device and method for threading .up the -pivot l|15il1cludes a coil 'spring which normally ring twister has beenprovided. This device con 40 urges pin |11 against rail |68. In this way, the sists 'of a temporary collecting .drum |62, driven operator -may push handle |16 in toward the through a verysen'sitive clutch, hereinafter more machine toextract pin |11, then release handle fully described, by an electric motor |63. The |16 and push the car along --the track.' When housings Yof electric motor |63 and drum |62 are thenext station is reached, pin |11 will be urged fastened together to form a unitary structure 45 automatically into the next hole |18. and that structure is provided with arms |64, In Figures 3 and 8, a wire guide |19 can be |65 and |66 (Figs. 3 and 8) on the respective ends seen extending from a portion of the motor hous of which Wheels are provided. These wheels are ing. This guide ris to insure that the thread is arranged to ride in tracks |61 and |88 afñxed to wound on drum |62 and cannot be accidentally ` the moving traverse ring board, which, during wedged in between the drum and the motor ‘as twisting, is reciprocated -in a vertical direction in sembly tobe engaged by moving parts. a conventional manner. Tracks |61 and |68, in Attention is directed to the fact that the vari ous spindles I3 are not located 'directly under the IGZ-|63 for movement therealong, act as con corresponding thread-storage, thread-advancing ductors for the supply of electric current to mo tor |63. It is contemplated that motor >|63 be a 55 unit I2, see Figure 3. lI'l'ie reason for locating the twister spindles between adjacent units is a low voltage unit and that one of the poles be dual one. In >the first place, more space is al served through the machine while the other pole lowed for >guides |69, and, secondly, and of even is visolated from the machine by the use of in addition to supporting motor-drum assembly sulating material in the mounting of one of the greater importance, a relatively long path is pro 60 vided between upper roller |26 and the twister spindle. Since the last stage of aftertreatment Referring now to Figure 8, >it will be seen that normally consists of drying the thread, by the a thread guide |69 supported by a rod '|18 is rails |61, |68. application of heat, thereto, and since, according located vertically above and in alignment with to this apparatus drying is to be effected on 'twister spindle I3. When the twister traveler |1| is to be threaded, the operator leads the 65 rollers |26, the relatively long path ‘between the said rollers Vand the associated spindles I3 allows free end of thread issuing from roller ‘|26 of time Vfor the thread to cool before twisting. thread-storage, thread-advancing unit |12 and In Figures 9, l0, and 11, the internal structure wraps it around a cylindrical spool ñttted over of collecting drum |62 Aand the driving connection drum |82 which has been caused to rotate by energizing motor |63. The driving arrangement 70 between said drum and motor |63 is illustrated. It can be seen that drum ‘|62 is in the form of a between motor |63 and drum .|62 is such'that the takeup speed of drum |62 will be in excess of the hollow cylinder supported from shaft `| 80 extend delivery -speed from thread-storage, thread-ad ing from the housing of motor V| 63 and connected vancing unit l2, a drum takeup speed of lapprox to the rotor of said motor by suitable <reduction imately Afive meters a minute in excess of. the gearing, not shown. Flangedfspiders 18| 'and |82 2,410,456 13 interiorly support drum |62, said spiders being spaced from shaft |88 by ball bearing assemblies |83 and |84. It is contemplated that drum |62 be made of hard rubber and be provided with a plurality of spring latches |85 for the purpose of holding in position a thread collecting bobbin of conventional form, not shown. This is a matter of convenience, since waste yarn wound on the collecting bobbin can be removed from drum |62 by sliding the bobbin axially off the unsupported end of the drum without interference with the driving connections for the latter. It can be seen that flanged spiders I8| and |82 -do not establish a driving connection between shaft |89 and drum |62. On the contrary, these 14 hub |99. For maintaining the adjustment, a lock is effected between a flanged spider 283 and cap 282. Flanged spider 283 is marginally con nected to drum |62 by three circumferentially spaced screws 284 while its hub portion is mount ed for free rotation on the exterior of hub |99 of cam |96. AS can be seen in Figure 11, the hub of spider 283 is provided with a plurality of circumferentially spaced sockets 295, each of a size to accommodate a pin 286. Pin 286 is per manently mounted in cap 282_and is adapted to extend into any selected one of the sockets 286. So that a connection may be maintained between bearings merely serve to support the drum from cap 282 and spider 283 except during periods of adjustment, the cap is normally biased to the left, as viewed in Figure 8, by a spring 28? mount the shaft in such a way that the two are freely ed Within a recess in hub |99. This spring nor-- mally urges a pin 298 to the left, as viewed in relatively rotatable. At the free end of shaft Figure 9, the shank of said pin being threaded |88 a small cylindrical collar |86 is keyed in posi tion by a screw key |8'|. Screw key |81 not only 20 into cap 282. By the arrangement just described, itis possible functions to key collar |86 for rotation with shaft to quickly and conveniently vary the loading of |88, but likewise maintains said collar and the springs |92 and |93 to any desired extent within shaft against relative axial displacement. Above the limits defined by the configuration of cam and below collar |86 arcuate brake shoes |88 and |96. To do this, the operator grasps cap 282 and |89 are loca-ted. These shoes are disposed on the pulls it axially away from motor housing |63. ends of metallic arms |98 and I9|, respectively, This die-engages pin 286 from one of the sockets the other ends of said arms being pivotally con nected to spider |82. From this it can be seen 285 in spider 203. Thereafter, the cap is turned either to the right or left, depending upon whether that so long as brake shoes |88 and |89 are urged into engagement with :collar |86 a driving con 30 the loading of the springs |92 and |93 is Ito be nection is established from shaft |88 through the increased or decreased. Since the springs are shown at the minimum loaded position in Figure brake shoes and arms |98 and I9! to spider |82 and from thence to cylindrical drum |62. 10, itis evident that the cam in that position may It has been previously stated that the clutch be turned only counterclockwise, as viewed in Fíg required in this installation be extremely sensi ure 10. When the desired adjustment is reached, tive in operation. For this reason, means are it is only necessary to release cap 282 in any posi provided for varying the load on brake shoes |88 tion such that the pin 286 is in registrywith one and |89. Midway of the lengths of arms |98 and of the sockets to allow spring 281 to draw the |9|, identical coil springs |92 and |93 are at cap to locked position. , tached, these springs being connected to the free 40 The effect 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 of a continuous spinning machine is that the spider |82, the anchorage being of a nature to peripheral speed of drum |62 may be set to a permit pivotal movement about the pin. It is now predetermined value in excess of the delivery evident that if arm |95 be rocked in a counter -`i speed of thread-storage, thread-advancing unit clockwise direction, as viewed in Figure l0', and I2. This excess in speed will be effective, how arm |94 be similarly moved, springs |93 and |92 ever, only so long as there is no resistance to will be extended to thereby increase the pressure rotation of drum |62. When thread is wound on shoes |89 and |88 thereby increasing the fric around the bobbin, which is fitted over drum | 62, tional contact between said shoes and collar |86 the tendency of the drum to take 4up faster than to increase the power resistance differential the thread-storage, thread-advancing units de necessary to cause slippage. The loading and livers tends to load drum |62 so that resistance unloading of springs |92 and |93 is accomplished ` to turning movement will cause slippage of the by the employment of a cam |96 having faces of clutch construction just described, thereby pre identical curvature disposed 180° apart. The 'con venting breakage cf -thread while at the same .time figuration of cam |96 may be readily Viewed in maintaining suflicient tension so that thread will Figure 10. Bearing against the surfaces of cam be taut between the free end of the thread |96 are followers |91 and |98 connected to arms storage, _thread-advancing device and drum |62 |94 and |95 respectively. Thus, by rotation of at all times. Similarly, as the build of ythread on cam |96 in a counterclockwise direction, as it is viewed in Figure 10, the distance of followers |9`| and |98 from the center of shaft |88 may be in the bobbin surrounding drum |62 increases, and so tends to increase the takeup speed of the tem porary collecting device, the clutch mechanism creased. yDue to the fact that the two cam sur faces of cam |96 are identical in configuration, such movement will bring about an identical in crease in loading of both of springs |92 and |93 ¿7 functioning to maintain the thread tau-t as shown » in Figure 8 while the operator prepares to thread to thereby increase the clutching effect between shoes |88 and |89 and collar |86. The movement up twister spindle I3. The clutch mechanism just described may be used in temporary collecting ole- will slip to prevent thread breakage while still vices '|‘| and 8| to avoid excessive tension of the and maintenance of cam |96 in vposition is effected by apparatus shown in Figures 9 and ll. Cam TT ì thread during transfers from .the units || to the corresponding units I2 in threading up. |96 is connected for rotation with hub |99 pro In Figures 12 and 13, there is shown a modified vided with a square end 288. Square end 288 is type Of continuous spinning machine constructed received in a bushing 28| pressed within knuried according to this invention. The liquid treatment cap 282. Thus, when cap 282 is turned, the torque is transmitted to cam |96 directly through its 75 steps effected on this machine may be similar to 2,410,456 l5 those of the Figure 1 apparatus or maybe‘varied in a manner to be hereinafter described. As can be seen upon reference to Figure 12, lthe modiiied 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 332, and spinning pump assembly 303 are adapted >from a conventional two-bath spinning layout. Bath troughs 300 and 33| ex tend continuously for the entire length of the machine, pump units 333 being provided at spaced 16 cooperation with a corresponding 4gear 343 mounted for rotation with shaft 335. Thus, shaft 33S is caused to rotate and through chain v333 drives shaft 335 at an identical speed. Hence the peripheral speeds of rollers 333 and 334 will be identical. It will be recalled that lower roller 22 'of unit || is mounted with its axis extending truly hori zontally while the axis of upper roller 2| extends generally horizontally but slopes in the direction of the unsupported end of the unit. This ar >points along the length of trough 300, each to rangement also prevails in 'conjunction with serve a spinneret 304. thread-storage, thread-advancing unit '301. The In the modiñed 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 304 in ltrough 300 is passed over a long path guiding device 305 and godet 300. rFrom godet 305 it may be led into the bath of trough 30|, and from thence to a thread-stor shaft 336 for lower roller'334 is mounted in anti friction bearings 343 supported in fixed position from a plate 335 'bolted to frame 302. On the other hand, shaft 335 is mounted for movement 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 in a vertical Plane so that the angle of converg ence of the axes of rollers 333 and 334 may be varied to produce varying coils spacings of thread wound around the two rollers. Once the .adjustment'of the angle of shaft 335 has been effected in a -manner to cause coil thread band adjacent the supported end thereof as described in connection with device || of Fig ure 1, the thread is led to a temporary collecting device 308 which is bodily moved to ia position ad spacing in conformity with the time factor of the treatment eiîected on thread-storage, thread-ad vancing unit 331, that unit is threaded up in the manner previously described in conjunction with jacent another thread-storage, thread-advancing unit ||, see Figure l. The thread is passed from ydevice designated generally at 303. On this de roller 33| in bath trough 30| to roller 332 adja vice further treatments are consummated. From 30 cent the supported end of unit 301. From this there the thread is led to a collecting device in roller it goes onto the thread-storage, thread-ad dicated generally at 3|0. . vancing unit and it leaves that unit adjacent a roller 335e. The thread is led around roller 363 ledinto a second bath located in trough 30|, and from thence to a roller 333 (Fig. 12) disposed around an immersed freely rotatable roller 33| 35 adjacent the supported end of unit 303. As is the After the thread leaves godet 306, it may be `and then to >threari-storage, thread-advancing unit 301 over guide roller 332. It will be under case of the apparatus illustrated in Figure l, the apparatus of Figure l2 `comprises two units 301 stood that the threading arrangement shown in and 309 which are disposed on opposite sides of Figure 12 is merely exemplary showing the me the machine. Hence, it is difficult to pass the chanical possibilities of the illustrated apparatus.~ 40 thread from roller 365er to roller 333 by solely It is evident lthat long path guiding device 305 manual means. As a consequence, a rocker arm may be used either with or without subsequent 301 (Fig. 13) is provided for the purpose of mov passage of the thread through bath 30|. In the ing a temporary collecting device 368 from a point latter case, of course, the thread is led directly adjacent the discharge end of unit k331 to a point from godet 306 to thread-storage, thread-advanc adjacent the takeup end of unit 309. Arm 301 ing device 301. Similarly, device 305 maybe is mounted for pivotal movement about shaft 34|, omitted and the thread led directly to godet anti-friction bearings 339 serving to connect the 306 and from thence either through the bath of two. Within the housing defining arm 331 a pul trough 30| or directly to thread-storage, thread ley 310 (Fig. 13) is located, connected by a V-belt advancing device 301 dependent upon the par 50 31| with another pulley 312. This pulley is keyed ticular chemical treatment'undertaken. It will be to a shaft 313 which likewise carries a temporary understood that godet 336 must be driven in timed collecting device 333. Thus, the rotation of shaft relation with the spinning pump and hence it is 33| is carried over to temporary collecting device connected with shaft 321 by means of suitable 368. In view of the fact that pulley 310 is some drive mechanism. 55 what larger than pulley 312, the peripheral speed Thread-storage, thread-advancing device 331 is of collecting device 338 is somewhat increased. similar in >structure and operation to the corre The two connecting pulleys are so adjusted that sponding unit | i of the continuous spinning ma the takeup speed of device 368 is just barely in chine of Figures l and 2. It is threaded up in excess of the delivery speed of rollers 333 and 33d the same manner and it will cause axial -feed of 60 so that the thread will not slack during a thread spaced connected coils of thread wound there ing up operation. Upon reference to Figure v13, around. Unit 331 consists of two rollers 333 and it will be seen that a pair of stops 314 depend » 334 mounted on axially extending shafts 335 and from the lower edge of arm 331. These members 33B lying in the same vertical plane which are cooperate with a stop 315 attached in any con supported at a common end. Each shaft is pro 65 venient manner to a portion of the machine vided with sprocket 331 over which is trained an frame so that arm 331 will, by gravity, always endless chain 333 so that both rollers will be assume the same extreme positions, regardless of driven at the same speed. The power source for whether collecting device 330 is adjacent unit ldriving rollers 333 and 334 through their respec 301 or unit 309. tive shafts is a shaft 330 caused to rotate by any 70 It can now be seen how temporary collecting conventional means not shown. Shaft 340 is con device 368 is operated. To move that device from nected by a sprocket and chain drive to a shaft its position adjacent unit 301 to the broken line 33| which extends for the full length of the ina position shown in Figure 12 adjacent the sup chine. At spaced points along the length of shaft ported end of unit 339, a crank 316 (Figs. 12 and 34|, gears .342 are located, one being provided for 76 13) is operated, this crank causing rotation Aof a 2,410,456 17 18 sprocket 311, which, through a chain 318, oper ates a sprocket 319 keyed to the housing bearings closed coil is wound near the unsupported end of unit 309. Because of the fact that a two-roller thread of arm 361. It can be seen that rotation of crank 316 will cause the desired movement to take place, the rocking of arm 361 being entirely independent of pulleys 210, which, of course, is keyed to shaft 341. Once the temporary collecting device 368 has been moved to the broken 1ine position of Figure 12, the thread is broken adjacent that de storage, thread-advancing device supported at one end only may be threaded up with great con venience, it is contemplated that all forms of the present invention be so`arranged. In connection with Figure 12, a trough 400 is illustrated, which trough may be moved into and vice and is led over roller 366 after which time the 10 out of collecting position beneath roller 381, the coils are wound around the rollers of unit 309 in purpose being to facilitate threading up of that the manner previously described in conjunction roller. A modified fonm of construction adapted with thread-storage, thread-advancing unit 1 1. to the same purpose is illustrated in Figures 14 The thread shown leaving unit 309 (Fig, 12) is to 16, inclusive. For convenience of illustration, passed over roller 319a and from thence is led to 15 only a single roller is shown and this is of the collecting device 310 of any conventional type, type used on the right-hand side of the machines the illustration of Figure 12 being diagrammatic of Figures 1 and 12. It is to be understood that and intended to include a thread supporting body this construction may be incorporated. in either driven at its periphery and used in conjunction of these machines. Only the lower roller is with any conventional traverse mechanism; for 20 shown, it being evident that the troughsV asso example, of the type employed in coning ma ciated with the upper roller cannot interfere with chines. v» threading up since a closed coil need not be The unit 309-is made up of two rollers 380 and wound underneath the upper roller. The single 381, the axes of which lie in the same vertical roller illustrated in Figures 14 and 15 is desig plane and are convergent in the direction of the 25 nated by the numeral 526 and is supported and unsupported end of the rollers. As before, the driven by any of the previously described means axis of roller 381 is truly horizontal, while the through a shaft 521. Through supply pipes, not axis of roller 380 slopes downwardly from right shown in Figures 14 and 15, liquids are sprayed to left as it is viewed in Figure 12. Rollers 389 upon roller 526 and are recovered in a trough 531 and 381 are carried on shafts 382 and 383, respec 30 which may be drained by pipes 533. In threading tively, supported in bearings 384 and 385 suit up, troughs 531 will interfere with the passage ably attached in any convenient way to the left of coils around the bottom of roller 526. Thus, hand main frame generally designated at 386. trough 531 is provided with a U-bar 535, the Bearings 385 are ñxed, and shaft 383 carries a transverse portion of which is añ‘ixed to the un gear 381 which meshes with a gear 388 carried 35 derside thereof at a point adjacent the supported on a main drive shaft 389. Shaft 389 is similar end of roller 526. The shanks of U-bar 535 are in structure and function to shaft 341, a plurality provided with registering apertures and a bolt of gears 388 being provided at spaced points 536 is passed through them and through a bored along its length, one for coaction with each gear portion of a frame supported block 531. In this 381. In this regard, it will be understood that 40 way, trough 531 is pivotally attached to a portion a gear 381 is associated with each unit 309. In of the main frame of the spinning machine. The a manner similar to the arrangement shown in under surface of trough 531 has depending there conjunction with unit 301, roller 380, through its shaft 382, is driven fro-m shaft 383. The drive from a bifurcated member 538 at a point remote is a chain and sprocket one indicated generally '“ trough to the main frame of the machine. The arms of bifurcated member 538 are provided with registering apertures which receive a bolt 539 on from the pointl of pivotal attachment of the at 390. Again in the interest of controlling the space between adjacent coils on the thread-storage, which a bell crank 540 is pivoted between the two thread-advancing unit, the upper shaft 382 of arms. Bell crank 540 is provided with an oper unit 309 is rendered angularly adjustable. The 50 ating handle 541 (Fig. 15) at the end of one arm adjustment is effected by pivotally attaching a and is pivotally connected between two arms 542 plate 384er, which supports bearings 384, at a by a pin 543 near the end of the other arm. Arms point 391. Pìvoted plate 384cv. is provided, at a 542 are pivotally connected between the arms of point remote from pivot point 391, with an ex U-member 544 which is affixed to a portion of tending portion 392 onto which a threaded rod 55 the main frame. The extreme end of the arm of 393 is pivotally attached through a bifurcated bell crank 540 which is pivotally attached at 543 member. Threaded rod 393 passes through a to members 542 has extending thereacross a stop plate 545, see Figure 16, of a width suñicient to frame 386. Within the arms of bracket 394 a contact the upper surface of both of the members hand nut 395 is located. It can be _seen that by 60 542. 'I‘he effect of this is that the weight of trough turning nut 395, the length of threaded rod 393 531 tends to rock bell crank 540 in a counter between that nut and the point of pivotal attach clockwise direction as it is viewed in Figure 14. bifurcated bracket 394 fiXedly attached to main ment to projecting portion 392 is varied and that Thus, plate 545 is pressed tightly against bars the effect of this variance will be to tilt the plate 65 542. In this connection it is important to note carrying bearings 384 in which shaft 382 is lodged. that the left arm of bell crank 540 and bars 542 A small sprocket located rearwardly of gear are not in alignment and that pivot point 543 is 388 drives a chain 396, which in turn drives a below a dead-center‘position. When the trough sprocket 391 carried on a stub shaft. The stub is to be lowered, bell crank 540 is rocked about shaft also carries a pulley 398 which is connected 70 pivot 539 in a clockwise direction making pivot by a b-elt 399 to a pulley mounted on a stub shaft point 543 into an elbow joint so that the front with roller 366. Thus, roller 366 is driven through end of the trough may be lowered. connections so adjusted that it has a takeup speed Modification of the process and the apparatus just a little in excess of the delivery speed from will readily be foreseen by those skilled in the unit 301. This assists in threading up when the 75 art, and I desire to include all modifications ¿2,410,456 419 '20 and variations coming within -thevscope of the ranged to rotate at a thread take-up speed which is somewhat -greater than the speed of the thread issuing from the treating devices of the station appended claims. s This is a division of my application Serial No, 450,934, filed July 14, 1942, entitled "Process and apparatus for the manufacture of synthetic yarn.” from which the thread is being collected so as to keep said thread under tension while being col lected and transferred to within Stringing-up proximity of the station located at a distance therefrom. at least two thread-storage, thread-advancing 3. A continuous spinning machine comprising devices and a twister device` al1 mutually offset 10 Ameans for forming a thread, a plurality of thread and spaced from each other, temporary collecting treating stations located at a distance from each means interposed between at least two of said other but constituting a unitary machine, each devices and bodily movable into thread receiving station including a plurality of thread treating position with respect to at least one of them, a devices over which thread passes while being power source associated with the temporary col 15 treated, rail means disposed between said sta lecting means, a yielding driving connection be tions, transfer apparatus adapted to be moved I claim: l. In a continuous spinning machine including tween said power source and said temporary col lecting means, and means associated with said on said rail means between said stations and adapted for passing treated thread issuing'from yielding driving connection for adjusting the de one of said stations to within Stringing-up prox gree of yield thereof to a predetermined value 20 imity of another of said stations located at a to maintain a constant thread tension during distance therefrom, rotary means carried by said bodily movement of the temporary collecting transfer apparatus for temporarily collecting said thread while said apparatus is traveling from one station to another, said rotary means being ar means for forming a thread, a plurality of thread 25 ranged to rotate at a thread take-up speed which treating stations located at a distance from each is'somew'nat greater than the speed of the thread other but constituting a unitary machine, each issuing from the treating devices of the station station including a plurality of thread treating from which the thread is being collected so as devices over which thread `passes while being to keep said thread under tension while being treated, rail means disposed between said sta 30 collected and transferred to within Stringing-up tions, thread transfer apparatus adapted to be proximity of the station located at a distance moved on said rail means between said stations therefrom and means for retaining the rotary and adapted for passing treated thread issuing thread-collecting device in alignment with a sta from one of said stations to within Stringing-up tion while the thread is being initially collected prom'mity of another of said stations located at a 35 thereon-at said station and in alignment with means. 2. A continuous spinning machine comprising distance therefrom, rotary means carried 'by said transfer apparatus for temporarily collecting said thread while said apparatus is traveling from one station to another, said rotary means being ar another station after said rotary collecting de vice has been brought to ÁWithin Stringing-up proximity of said other station. HERBERT O. NAUMANN.