US3722199A - Can spinning frame - Google Patents

Can spinning frame Download PDF

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Publication number
US3722199A
US3722199A US00140049A US3722199DA US3722199A US 3722199 A US3722199 A US 3722199A US 00140049 A US00140049 A US 00140049A US 3722199D A US3722199D A US 3722199DA US 3722199 A US3722199 A US 3722199A
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Prior art keywords
spindle
supporting member
bell
shaped
thread guide
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Expired - Lifetime
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US00140049A
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English (en)
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A Gardella
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Individual
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Individual
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/02Spinning or twisting arrangements for imparting permanent twist
    • D01H7/74Cup or like arrangements
    • D01H7/78Constructions of cups, e.g. spinning boxes

Definitions

  • the invention relates to centrifugal can-spinning spindles, and in particular to such spindles for use in spinning hemp, jute, linen, kenaf hemp, asbestos and like fibers.
  • spindles are adapted to produce yarns wound up in hollow-core bobbins, and generally comprise a bell-shaped can rotatably suspended by itstubular neck so as to turn at a high speed about its axis, a distributing tubular thread guide co-axially fitted from above into the bell-shaped can through the neck thereof and being imparted a reciprocating upward and downward motion; and a pre-twisting tubular thread guide with arranged co-axially with the distributing thread guide, between this latter and the overlying drafting unit, so as to be capable of positively turning about its own axis, in the same direction as the bellshaped can, but not being axially shiftable.
  • the distributing thread guide and the pre-twisting thread guide are telescopically engaged with one another.
  • the sliver or roving coming out of the drafting unit passes through the pre-twisting thread guide and thenthrough the distributing thread guide, and penetrates into the underlying bell-shaped can, where, by centrifugal force, it is deposited onto the inner wall of said can.
  • the sliver is twisted and is thus made into a yarn which, owing to the upwardly and downwardly reciprocating motion of the distributing thread guide, forms, in the inside of the bell-shaped can, a bobbin having intercrossed concentrical layers.
  • the pre-twisting thread guide serves for the automatic re-starting of the spinning, i.e. for the automatic re-atta'ching of the yarn in case of its breakage during the spinning, and for the automatic starting of any new spinning operation after the discharge of the finished bobbin.
  • the pre-twistingthread guide is caused to positively turn either in a continuous manner, or at least temthe said thread guide, is subjected to some preliminary I twistingtaking place in the same direction as the final twisting of the spinning and permits the automatic im mediate starting of the real and proper spinning of said partially pre-twisted sliver, as soon as the same penetrates into the bell-shaped can.
  • the bell-shaped can, the distributing thread guide and the pre-twisting thread guide are separately mounted onto the spinning machine frame.
  • the invention aims at simplifying and reducing the number of the parts constituting the spindle, and also at eliminating the aforementioned drawbacks, and to this end provides a centrifugal can-spinning spindle of the kind as described, wherein the bell-shaped can, the distributing thread guide, and the pre-twisting thread guide are supported in a support and mountable as a unit on the spinning machine frame.
  • the aforementioned three members of the spindle or spinning unit come to constitute a single constructional unit and can be mounted and dismounted all together. More specifically, the bell-shaped can, the distributing thread guide, and the pre-twisting thread guide can be mounted together onto their common supporting member outside of the spinning machine,
  • the constructional unit thus' prepared can be located in position in the spinning machine frame simply and quickly, thus eliminating the need for providing in the frame a plurality of accurately machined and correlated separate supporting bearings and minimizing the stopping time of the other spindles in the spinning machine.
  • the removable supporting member which is common to the bell-shaped can and to both thread guides, can be'constructed and mounted onto .the spinning machine frame in any suitable manner.
  • the said supporting member is constituted by a sturdy bushing which may be composed of two or more interconnected co-axial sections, and is provided with means, such as flanges, external lugs, or like means, by which it rests upon the spinning machine frame and is removably securedth ereto.
  • the bell-shaped can, the distributing thread guide, and the pre-twisting thread guide constituting the spindle are mounted through suitable bearings.
  • the supporting thread guide in this preferred embodiment is provided with slots through which are passed the means for the rotational driving of the bell-shaped can and for the reciprocating movement of the distributing thread guide, and possibly also for the rotational driving of the pre-twisting thread guide.
  • the single supporting member is mounted on the spinning machine frame by elastic members, and in such a manner as to allow limited pendulum-like swinging movements of said supporting member, and therefore of the whole spindle or spinning unit in one or more directions.
  • pendulum-like swinging spindle will generally be set at an axis being in function of the aforementioned unbalance.
  • FIG. 2 shows, in enlarged scale, a vertical section through the thread-drawing grippers of the reciprocat- 'ing distributing thread guide
  • FIG. 3 shows a vertical section in enlarged scale through the means for the elastical pendulum-like swinging anti-vibrating suspension of the spindle from the spinning machine frame
  • FIG. 4 is a cross-section, in an enlarged scale, on line IVIV of FIG. 1, I
  • FIG. 5 is a vertical section through another embodiment of the centrifugal can-spinning spindle according to the invention.
  • FIG. 6 is a cross-section in enlarged scale, on line VI-VI of FIG. ,5,
  • FIG. 7 is a 'vertical section, in an enlarged scale, showing the means for the elastic anti-vibrating suspension of the spindle shown in FIG. 5,
  • FIG. 8 is a section on line VIII-VIII of FIG. 5, and shows in plan view the means for mounting the spindle onto the spinning machine frame,
  • FIG. 9 shows in a vertical section another embodiment'of (themeans) for mounting the spindle onto the spinning machine frame, there beingshown only the common supporting bushing of the bell-shaped can and of both the distributing and pre-twisting guides, and
  • FIGS. 10 and, 11 are transversal cross-sections on lines X-X and XIXI of FIG 9.
  • These three basic members of the spindle are mounted in one single upright supporting bushing, which is denoted as a whole by 4 andis in its turn removably mounted in a pendulum-like anti-vibrating manner onto the spindle rail 5 of the spinning machine.
  • the supporting bushing 4 is constituted by two superposed co-axial sections 104 and 204 which are connected together by means of screws 6.
  • the bell shaped can 1 is mounted-by means of its upper tubular neck 101', and by means of ball or like bearings 7, 8 in the lowermost section 104 of the supporting bushing
  • the neck 101 of the bellshaped can 1 is provided with a pulley 9,'in which is engaged a belt 10 (not shown in FIG. 1 but similar to that shown in FIG. 5) for rotationally driving the said bellshaped can 1.
  • the lower section 104 of the supporting bushing 4 has a number of slots which are well visible in FIG. 4, and through which the driving belt 10 is passed.
  • the distributing thread guide 2 which during the spinning is imparted an upward and .downward reciprocating motion, is housed axially slidably in the neck 101 of the bell-shaped can 1 so as to axially slide therewithimand is supported by a lower ball-bearing l1 housed in the top portion of the same bell-shaped can 1, and as well by an upper ball-bearing l2 housed in the supporting bushing 4 above the bearing 8 of the bell-shaped can 1. It is to be noted that the distributing thread guide 2 is slidably mounted through both bearings 11 and 12. I
  • the reciprocating motion of the distributing thread guide 2 is promoted in a known manner by a movable bench 13, the so-called carriage, generally being cornmon to a plurality of spindles, which is caused vertically to slide in the spinning machine frame, by being guided for example along columns 140 (see FIG. 6), and is imparted an upward and downward motion.
  • the distributf ing thread guide 2 is connected by suitable means to the said carriage 13 in a readily and quickly mountable and dismountable manner. In the embodiment as shown in FIGS.
  • FIG. 1 A preferred constructional embodiment of said gripper 14 is shown in FIG.
  • the gripper 14 comprises a fixed'claw 114, secured to the carriage 13 by means of a screw 16 and a movable claw 214 mounted onto the said screw 16, by providing such a clearance'as to allow the said claw to be moved relatively to the fixed claw 1 14.
  • the gripper 14 is closed and opened by means of a locking screw 17 which is screwed in the carriage 13 and acts through a spring 18 upon a rear extension'3'14,
  • FIG. 1 there is shown by fiill lines the lower position, and by dash-and-dot lines the upper position of the carriage 13 supporting the gripper 14, which entrains the distributing thread guide 2.
  • the said gripper besides providing the upward and downward motion of the distributing tubular thread guide, also permits the pendulum-like swinging move- I ments of the unit. Furthermore, the said gripper permits the rotation of the distributing thread guide whenever the yarn might recoil uponthe same thread guide.
  • the pre-twisting thread guide 3 which is arranged co-axially to the distributing thread guide 2, between this latter and the overlying drafting unit (not shown) is rotatably suspended by means of a ball-bearing 19 from the upper end of the supporting bushing 4, but is not allowed to slide axially.
  • the lower end of the pre-twisting thread guide 3 is slidably telescoped in the distributing thread guide 2, through a guide sleeve 20 made of a self-lubricating material.
  • a pulley 21 for rotatably driving the said thread guide 3.
  • an annular disc 22 is provided for ejecting the conical bobbin R.
  • the said bobbin-ejecting disc 22 is carried by pins 23 which are slidably mounted in corresponding holes in the top portion of the bellshaped member 1.
  • the outer ends of these pins 23 are connected together by means of a ring 24.
  • a discharging plate 25 Between the spindle rail 5 andthe ring 24 there is arranged a discharging plate 25, which can be vertically shifted in an upward and downward direction, and which co-acts with at least a part of ring 24. During the spinning, that is, during the rotation of the bell-shaped can 1, the discharging plate 25 is uplifted with respect to the ring 24.
  • the discharge plate 25 Upon completion of the spinning, once the bellshaped can 1 has been stopped, the discharge plate 25 will be temporarily lowered, whereby the ring 24, together with the pins 23 and the bobbin-ejecting disc 22, are downwardly shifted, thus pushing the wound-up bobbin R out of the bell-shaped can 1.
  • the three principal members of the spindle i.e., the bell-shaped can resilient material, such as rubber and the like, are
  • The-bushings26, 27 have inner annular flanges 126, 127 formed ,in their upper ends, which flanges are superposed to one another and restupon the top face of the lugs 404 of the supporting bushing 4. That portion of the bushing 4 which has the lugs 404 and is surroundedby the two bushings '26, 27, is housed in a circular through bore 105 in the spindle rail 5, whose diameter is substantially the same as the outer diameter of the rubber bushing 27.
  • This annular disc 28 is fastened to the side lugs 4040f the supporting bushing 4 by means of stud bolts 29 and of their corresponding upper nuts, while the same is fastened to the spindle rail 5 by means of screws 31.
  • a flat ring 34 made of a resilient material, such as rubber or the like, and being traversed by the spacer sleeves 33.
  • the metallic ring 32 and the rubber ring 34 are housed in a corresponding circular upper'recess in the annularidisc 28.
  • the rubber ring 34 has an upwardly projecting rim which is fitted between the metallic ring 32 and the disc 28.
  • the central bore in the annular disc 28, and also the bores drilled in the same, through which are passed the spacer sleeves 33, are made so wide as to prevent the metalor said disc 28 from coming in any way into contact with the supporting bushing 4 and with the spacer sleeves 33, as is apparent in FIG. 3.
  • the annular disc 28 comes to constitute a flange fastened to the sleeve 4 with the interposition of resilient pads constituted by the rubber ring 34 and by theflange 127 of the rubber bushing 27.
  • the supporting bushing is centered in the spindle rail 5 by means of the rubber bushing 27. Consequently, the supporting bushing 4, and therefore the whole spindle which with said bushing constitutes a constructional unit, are allowed to perform small elastic pendularswinging movements in all directions relatively to the spindle rail 5 of the spinning machine. In this way, any possible machining tolerances are automatically compensated and, above all, the transmission of any vibration from the spindle to the spinning frame, and vice-versa is prevented.
  • the discharging plate 25 has a bore 125 which is drilled co-axially to the bore 105 in the spindle rail 5 and is provided with three 1 recesses 225 which are angularly offset in the same 404 relatively to the said recesses 125, as is apparent in FIG. 4.
  • the bushings 26, 27, the annular disc 28 and the two flat rings 34 and 32 are subsequently mounted from above, while the locking in position-of saidmembers is then effected by means of nuts on studs 29 and by means of screws 31.
  • the bell-shaped can 1 is closed at its lower end by means of a plate which, once the spinning has been completed, is lowered in order to open the can 1 and to allow the discharging of the bobbin R.
  • This plate 35 has a funnel-shaped central portion 135 and is peripherally provided with angularly spaced downwardly extended elastic blades 235. Each one of these blades 235 has a projection on its outer face,
  • annular groove table 36 which is shown with dash-and-dot lines in FIG. 1
  • annular disc 38 is fixedly mounted by means of posts 37.
  • the funnel-shaped central portion of the overlying plate 35 is fitted in the central bore in the annular disc 38 and carries beneath the said disc a counter-plate 39.
  • the distance between plate 35 and the underlying counter-plate 39 integrally mounted thereto, is so selected as to obtain the following operation.
  • the plate 35 is driven out of the bell-shaped can 1 and bears against the'annular disc 38.
  • the plate 35 comes to be fitted in the bell-shaped can 1 and the outward projections of the elastic blades 235 are snapped into engagement with the inner annular groove of the said bell-shaped can.
  • the plate 35 is thus fastened to the can 1.
  • the table 36 is then lowered down slightly, so as to bring the annular disc 38 in an intermediate position between the plate 35 and its counter-plate 39, as shown in FIG. 1. In this way, during the spinning, the plate 35 turns freely,
  • annular collecting channel 61 which is open towards the inside of the bell-shaped can 1.
  • the radial bores 60 preferably have flared outer ends, while the annular collecting channel 61 is covered by means of a replaceable cover 62 arranged in the inside of thebell-shaped can 1 onto the top part thereof and provided with ring-like arranged slanting through bores 63 which are set into communication with the said collecting channel 61.
  • a vacuum is thereby generated in'the inside of the bell-' shaped can 1, which causes a descending air stream to' continuously flow through the pre-twisting' thread guide 3 and the distributing thread guide 2.
  • This descending air stream facilitates the coming down of the'roving during the initial stage of the spinning operation or during the re-starting stage, after a breakage of the yarn or of, the roving;
  • FIGSJS to 8 substantially corresponds to, the embodiment as shown in FIGS. 1 to 4, like parts being indicated by like reference numerals.
  • the difference primarily resides in the feature that the reciprocating distributing thread guide 2 is suspended by means of a ball-bearing 12in a head 40 which is vertically slidable in the upper section 204 of the supporting bushing 4 and is imparted an upward and downward motion.
  • the head 40 is coupled by means of two radially arranged co-axial trunnions 41 to a driving fork 42 which is mounted onto the carriage 13 which in turn, as shown particularly in FIG. 6, is upward and downwardly slidable upon the upstanding guides 140.
  • the leg 142 of the driving fork 42 is pivotally mounted in a bushing 43 carried by an arm 113 of carriage 13, so as to axially and in combination with.
  • the rotation of the distributing thread guide 2 can be braked with an adjustable force by means of a small shoe brake 44, mounted in the head 40, which can be operated by means of a thumb screw 45, as shown in FIG. 6.
  • the pre twisting guide 3 is suspended from the upper end of the supporting bushing 4 by means of a rolling bearing 19 and is also guided by a rolling hearing 120 mounted in the head 40, through which the said thread guide 3 is slidably passed.
  • the rail 5 is provided with a circular through bore 105 having three angularly equi-spaced inner brackets 205,- while in proximity of its lower end the bushing 4 is provided with three sideward projecting lugs 404 being samely equi-spaced, as is apparent from FIG. 5, and particularly from FIG. 8.
  • the dischar 'ng plate 25 is provided with a corresponding co-axi bore 125 having three angularly equispaced recesses 225 which are fitted in position between the brackets 205 projecting from the bore 105 in the spindle rail 5.
  • the supporting bushing 4, with the can 1 and the thread guides 2, 3 mounted thereinto, is fitted from below, through the bore 125 in the discharging plate 25 and the bore 105 in the spindle rail 5, by having the lugs 404 so trimmed that the same pass through the recesses 225 in the discharge plate 25 and between the brackets 205 of the spindle rail 5.
  • the bushing 4 is then rotated,,so that its lugs 404 come to bearupon the brackets 205 to which these lugs are fastened by meansv of screws 145 and of elastic bushings 46 0f the type known under the trade name of Silent- 'block, or a like type, as shown particularly in FIG. 7.
  • FIGS. 9 to 11 there is I shown, another way of mounting the supporting bushing 4 onto the spinning machine in a vibratiomdamping pendulum-like swingable manner.
  • FIGS. 9 to 11 there is I shown, another way of mounting the supporting bushing 4 onto the spinning machine in a vibratiomdamping pendulum-like swingable manner.
  • the supporting bushing 4 and the means for fastening the same to the spinning machine frame are shown, while, for claritys sake, the bell-shaped can 1 and the two thread guides 2,
  • a stirrup 49 is fastened by means of screws 48 to the upper section 204 of the supporting bushing 4 and'is suspended from the spindle rail 47 by means of bolts 50 and of elastic bushes 51 of the type known under the trade name of Silentblock, or a like type.
  • the upper end of bushing 4 is passed, with an appreciable radial clearance, through a bore in rail 47, so as to cause the same to project thereabove.
  • the circular gap between the bushing 4 and the spindle rail 47 is closed by an elastic annular joint covering 52.
  • the lower end of the supporting bushing 4 is passedrail and is fastened to the same by means of fastening sectors 54.
  • the rubber bush 53 has its inner face adhering against the outer wall of the supporting bushing 4, while its outer side adheres against the wall of the bore in the spindle rail 5, and in the face turned towards the bushing 4 is provided with vertical grooves 253 which allow the said bush to be elastically deformed in a radial direction.
  • the supporting bushing 4 which is suspended by its upper end from the upper spindle rail 47 by means of bolts 50 and of the rubber bushing 51, and by its lower end is centrally positioned in the bore drilled in the lower spindle rail 5, by means of the rubber bushing 53, is allowed to perform limited elastic pendulous swinging movements in all directions.
  • a centrifugal can spinning spindle for use with an associated spinning machine and draft unit for producing yarns wound in hollow core bobbins comprising a supporting member, a bell-shaped can having a tubular neck extending upwardly centrally from its top, said bell-shaped can being suspended by its tubular neck from and below said supporting member, means for rotating said bell-shaped can about its axis, a tubular thread distributing guide coaxially fitted from above into thebell-shaped can through its tubular neck and extending downwardly within the canto a level near the bottom defining a lower position, means for vertically reciprocating said thread distributing guide between said lower position and a raised position wherein the lower end of the thread distributing guide is near the upper end of the bell-shaped can, said distributing thread guide being axially slidably mounted in a lower bearing provided in the neck of the bell-shaped can and in an upper bearing provided in the supporting member, a tubular pre-twis'ting thread guide arranged coaxially with the tubular thread distributing guide, and
  • a spindle according to claim 3, wherein the sup port bushing is formed of two or more interconnected co-axial sections.
  • a spindle according to claim 1 wherein the tubular neck of the bell-shaped can is mounted in the supporting member by means of two axially spaced roller provided a head axially slidable and guided in the upper portion of said cylinder, said distributing thread guide being rotatably suspended in said head, said'head being connected to said means for vertically reciprocating the distributing thread guide.
  • the means for vertically reciprocating the distributing thread guide includes a gripper carried by a vertically reciprocating carriage slidably mounted in a spinning machine frame, said gripper having clamping jaws including resilient clamping blocks engaging a portion of said distributing thread guide.
  • said means for vertically reciprocating the distributing thread guide includes a fork carried by a vertically reciprocating carriage slidably mounted in a spinning machine frame, said fork being attached to said sliding head by trunnions which pass through vertical slots in the cylindrical wall of the supporting member.
  • said means for mounting the supporting member further includes an annular support disc having an inwardly projecting flange overlying said inturned flange of the resilient bushing and through which fastening means are applied for elastically supporting the lateral lugs from the spindle rail.
  • a spindle according to claim 12 wherein to the upper end of the supporting member there are fastened a plurality of stirrups which are suspended from an upper spindle rail of the spinning machine by bolts' surrounded with bushings made of elastic material, the
  • a centrifugal 'can-spinningspindle according to shaped can which plate has a central downwardly extending projection which is passed with a substantial clearance through a bore in an underlying vertically shift'able control member, while under the said control member said plate projection is provided with an abutment member co-operating with the said control member, the plate being fitted in the bell-shaped can and being fastened thereto by lifting the control member, and being disengaged and disconnectedfrom the bell-shaped member by lowering the control member.
  • the distance between the plate and the abutment member, in correspondence of the lower .end of the plate central projection being selected in such a manner that the control member is allowed to assume an intermediate position, in which it does not said bell-shaped can by an annular collecting channel and by annularly spaced slanting through bores provided in a replaceable limiting cover mounted within the bell-shaped can adjacent the top thereof, whereby to cause a descending airstream to flow through the pre-twisting thread guide and the distributing thread I guide.
  • claim 1 having a rotatable vertically shiftable platewhich is provided for closing the lower end of the bell- 21.1'A spinning machine in combination with at least one spindle as claimed in claim 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00140049A 1970-05-08 1971-05-04 Can spinning frame Expired - Lifetime US3722199A (en)

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IT1267270 1970-05-08

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GB (1) GB1319378A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3546626A1 (de) * 2018-03-28 2019-10-02 Kabushiki Kaisha Toyota Jidoshokki Topfspinnmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046965A (en) * 1934-07-27 1936-07-07 Gen Electric Vertical shaft motor
US2664696A (en) * 1951-04-13 1954-01-05 W C T Hart & Zn Instr App Nfab Hanging spinning or twisting pot
US2900782A (en) * 1957-06-10 1959-08-25 Bobkowicz Emilian Universal spinning unit
US3314223A (en) * 1962-10-30 1967-04-18 Bobkowicz Emilian Apparatus for yarn production

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046965A (en) * 1934-07-27 1936-07-07 Gen Electric Vertical shaft motor
US2664696A (en) * 1951-04-13 1954-01-05 W C T Hart & Zn Instr App Nfab Hanging spinning or twisting pot
US2900782A (en) * 1957-06-10 1959-08-25 Bobkowicz Emilian Universal spinning unit
US3314223A (en) * 1962-10-30 1967-04-18 Bobkowicz Emilian Apparatus for yarn production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3546626A1 (de) * 2018-03-28 2019-10-02 Kabushiki Kaisha Toyota Jidoshokki Topfspinnmaschine
CN110318126A (zh) * 2018-03-28 2019-10-11 株式会社丰田自动织机 离心式精纺机
CN110318126B (zh) * 2018-03-28 2021-12-03 株式会社丰田自动织机 离心式精纺机

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GB1319378A (en) 1973-06-06
DE2120998A1 (de) 1971-11-25
DE2120998C3 (de) 1980-08-07
DE2120998B2 (de) 1979-12-06

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