EP0276208A1 - Verfahren und vorrichtung zum wiederanspinnen einer offenend-friktionsspinnvorrichtung. - Google Patents
Verfahren und vorrichtung zum wiederanspinnen einer offenend-friktionsspinnvorrichtung.Info
- Publication number
- EP0276208A1 EP0276208A1 EP86904774A EP86904774A EP0276208A1 EP 0276208 A1 EP0276208 A1 EP 0276208A1 EP 86904774 A EP86904774 A EP 86904774A EP 86904774 A EP86904774 A EP 86904774A EP 0276208 A1 EP0276208 A1 EP 0276208A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction spinning
- wedge gap
- fibers
- thread
- friction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/48—Piecing arrangements; Control therefor
- D01H4/52—Piecing arrangements; Control therefor for friction spinning
Definitions
- the present invention relates to a method for re-spinning an open-end friction spinning device, in which a thread is returned to the wedge gap, bound there in fibers and then continuously withdrawn from the wedge gap, and a device for performing this method.
- the feed device is shut down immediately in order to prevent unnecessary fiber supply which clogs and damages the spinning device.
- the opening roller generally continues to run, since stopping it separately, in particular for each spinning station, not only requires a great deal of technical effort, but rather takes a long time to start up and run down. The result of this is that the fiber beard projecting from the shutdown feed device into the area of the opening roller is completely removed.
- suction openings (GB-PS 1.170.869) or compressed air openings (DE-PS 3-104.-444) are provided in the feed channel. Due to the uninterrupted fiber feeding and dissolving process, undamaged fibers are fed to the fiber collecting surface exactly at a desired time, but due to such openings in the very sensitive fiber transport path between: the opening roller and the fiber collecting surface, the internal spinning process is disturbed. Therefore, none of these suggestions has gained practical relevance.
- This object is achieved according to the invention in that the fibers are continuously fed to the wedge gap, but are first removed again from the wedge gap, in that the friction spinning elements are driven in the spinning direction and the fiber removal is stopped, and in that the end of the thread leads to the one which is forming Fiber accumulation returned and the thread with continuous integration of the fibers fed to the wedge gap: a.from the wedge gap is withdrawn.
- the fibers are brought through the wedge gap to the side of the friction spinning elements facing away from the wedge gap and are removed from there. In this way, it is not necessary to strongly redirect the fibers emerging from the fiber feed channel for removal.
- the friction spinning element rotating out of the wedge gap is reversed in its direction of rotation and, to end the removal of fibers from the wedge gap, the friction spinning element which was previously reversed in its direction of rotation is again reversed in its direction of rotation, so that it rotates out of the wedge gap.
- the fibers are not removed mechanically, but pneumatically.
- the fibers can also be sucked off parallel to the wedge gap, so that a suction nozzle arranged on the side of the friction spinning elements facing away from the take-off side can be used.
- a suction nozzle arranged on the side of the friction spinning elements facing away from the take-off side.
- the two friction spinning elements are preferably separated from one another in the radial direction, so that the fibers are removed in a particularly simple manner through the wedge gap. It is expedient to clean the two friction spinning elements by mutual removal and by switching off the suction air on the suctioned friction spinning element and to apply negative pressure to the suctionable friction spinning element only when the two friction spinning elements have been returned to their operating position.
- friction spinning elements which can be removed from one another, it can be provided, in addition to or instead of switching off the negative pressure which is effective outside the friction spinning elements, that the removal of the fibers from the wedge gap is interrupted by returning the friction spinning elements to their operating position.
- the "operating position" of the friction spinning elements is understood to mean a position which enables the fibers to be collected in the wedge gap and to be integrated into a thread end.
- the two friction spinning elements can be located so close to one another that the fiber accumulation forms in the wedge gap facing the fiber feed;
- the operating position can, however, also be selected such that the fibers are fed into a first wedge gap on one side of the plane laid by the axes of the two friction spinning elements and in a second wedge gap, which passes through the friction spinning elements are formed on the other side of this plane, are tied into the end of a thread.
- the fiber removal is advantageously not stopped suddenly, but gradually.
- the thread is first brought into the ready-to-piece position outside the wedge gap. This ensures that ß the fibers only can come into contact with the returned thread end at the desired time during the application.
- the thread return is controlled so that the thread end is placed on the fiber accumulation.
- the friction spinning elements do not yet have to be driven in the spinning direction before the thread is introduced into the wedge gap, but it has proven to be advantageous if they are driven in the spinning direction at the latest when the fiber removal from the wedge gap has ended.
- a controllable suction air nozzle assigned to the fiber feed channel and directed against the wedge gap is provided.
- the suction air nozzle, which is assigned to the fiber feed channel, has the task of sucking off the fibers from the wedge gap as long as the fibers are not yet supposed to remain in the wedge gap for binding into a thread end.
- the suction air nozzle - with respect to the thread take-off direction - can be arranged at the rear end of the friction spinning elements.
- the suction air nozzle is preferably arranged on the side of the friction spinning elements opposite the fiber feed channel. In this way, the fibers to be removed do not need to be deflected on their way into the suction air nozzle.
- the vacuum can expediently be switched over from the suction air nozzle to the friction spinning element which can be sucked up and vice versa. If a piecing device that can be moved along a large number of open-end friction spinning devices is provided, then it is advantageous if the negative pressure in the suction air nozzle and in the suctionable friction spinning element can be controlled from this moving piecing device. In order to be able to control the inflow of fibers required for piecing, the vacuum acting in the suction air nozzle can advantageously be gradually controlled in a further embodiment of the method according to the invention.
- a controllable reversing clutch is assigned to the friction spinning element rotating out of the wedge gap.
- the friction spinning element rotating out of the wedge gap during the spinning process like the other friction spinning element, can be temporarily driven in the direction of the wedge gap. In this way, the fibers fed to the wedge gap are conveyed between the friction spinning elements, from where they are removed pneumatically or mechanically by means of a conveyor belt.
- the two friction spinning elements can be moved radially relative to one another for the removal of the fibers.
- the operating position of the two friction spinning elements can be adjusted by a stop in a further embodiment of the invention.
- the bearing of the movably mounted friction spinning element is expediently formed by a housing part which is movably supported relative to a housing part to be received by the stationary friction spinning element.
- the negative pressure in the suction air nozzle and in the suctionable friction spinning element is controllable depending on the position of the friction spinning elements.
- the housing is located opposite the outer surface.
- the friction spinning element screwing into the wedge gap is mounted in a stationary manner, while the friction spinning element emerging from the wedge gap is movably supported relative to the other friction spinning element. In this way, the thread can already open . be deposited on the rotating friction spinning element before the two friction spinning elements have come into mutual contact again.
- Fig. 1 a spinning position with a trained according to the invention
- FIG. 3 shows a cross section through an open-end friction spinning device
- Fig. 4 shows a plan view of another embodiment of the object of the invention.
- FIG. Figure 5 is a front view of the device shown in Figure 4.
- Fig. 1 shows a spinning station with an open-end friction spinning device 10, to which the fiber material 3 is fed by means of a feed and dissolving device 2.
- a draw-off device 4 is provided for pulling off the spun thread 30.
- the drawn-off thread 30 is wound up by means of a winding device 40 on a spool 400 which can be driven by a winding roller 401.
- a thread monitor 41 is located in the thread path between the open-end friction spinning device 10.
- the open-end friction spinning device 10 has a housing 13 with two rotationally symmetrical friction spinning elements 100 and 101 (FIGS. 2 and 3) which form a wedge gap 102. At least one of the friction spinning elements, e.g. the friction spinning element 100 is perforated and sucked in the area of the wedge gap 102 during spinning. For this purpose, it is connected to a suction air line 11 via a valve 110 (FIG. 1).
- a suction air nozzle 111 is connected via the valve 110 and an intermediate line 112, which in relation to the plane E, which is defined by the axes 103 and 104 (FIG. 3) of the friction spinning elements 100 and 101, is in a wedge gap 102 through the friction spinning elements 100 and 101 formed second wedge gap 105 opens.
- This suction air nozzle 111 is assigned to the fiber feed channel 24 and has the task of sucking off the fibers that are not yet required before the thread 30 is attached.
- each friction spinning element 100 and 101 which in the exemplary embodiment shown are designed as rollers for the sake of simplicity, are driven in the same direction (see arrows P1 and P2 in FIG. 3).
- each friction spinning element 100 and 101 has a whorl 107 and 108, respectively, via which they are driven by a drive belt 12 (FIGS. 4 and 5).
- the drive belt 12 is held in contact with whorls 107 by a stationary roller 18 (FIGS. 4 and 5).
- a controllable reversing clutch 17 is assigned to the whorl 108 of the friction spinning element 101 rotating out of the wedge gap.
- these two rollers having 170 and 171 'which are arranged on the two ends of a shaft 172 pivotably cash cranked lever 173rd
- the role 170 has the task of keeping the drive belt 12 in contact with the whorl 108 when the drive belt 12 is released from the roll 171.
- the roller 170 releases the drive belt 12
- the roller 171 arrives at the same time on the drive belt 12 and on the whorl 108, so that the friction spinning element 101 is driven in the opposite direction.
- the armature 175 of an electromagnet 176 is articulated on the lever 173 via a coupling member 174. For the sake of clarity, this drive in FIG. 1, only the electromagnet 176 is shown.
- the housing 13 is designed such that it allows the friction spinning element 101 to pivot in the radial direction away from the friction spinning element 100.
- its axis 106 is mounted on two pivot arms 150 and 151, which in turn can be pivoted about an axis 15 (FIG. 2).
- a coupling member 140 is connected to the swivel arm 150 and is connected to the armature 141 of an electromagnet 14.
- a return spring 142 is arranged, which is supported in a suitable manner on the armature 141 and the electromagnet 14 so that it returns the friction spinning element 101 into its operating position when the electromagnet 14 drops.
- a stop 16 with which the swivel arm 150 cooperates, is adjustably arranged on the housing 13.
- the feed and dissolving device 2 arranged upstream of the open-end friction spinning device 10 has a feed hopper 20, by means of which the band-shaped fiber material 3 is fed to a feed roller 21, with which a pressure roller or feed trough (not shown) cooperates in the usual way.
- the feed roller 21 is driven via a clutch 25 which is connected to the thread monitor 41 in terms of control.
- the fiber material 3 is fed from the feed roller 21 to a dissolving roller 22, which dissolves the band-shaped fiber material 3 into individual fibers and feeds it to a thread formation zone 300, where the individual fibers are bound into the end of the continuously drawn thread 30.
- the opening roller 22 is driven in a known manner by a belt 23.
- a fiber feed channel 24 extends from the opening roller 22 into the wedge gap 102 of the friction spinning elements 100, 101. -
- a part of the fiber feed channel 24 is located in a cover 130 covering the housing 13, which has a thread insertion slot 14 in addition to the fiber feed channel 24.
- This thread insertion slot 14 extends from the outside 131 of the cover 130 to the inside thereof and runs next to the end 132 of the housing 13 on the pull-off side to the mouth end 240 of the fiber feed channel 24 facing away from the take-off side 24.
- the end 131 of the cover 130 ends on the outside 131 of the cover 130 Thread insertion slot 14 in a controllable suction air nozzle 144.
- the thread insertion slot 14 opens next to the fiber feed channel opposite the outer surface of the friction spinning element 100.
- a piecing device 50 is provided in the maintenance carriage 5 which can be moved along these spinning positions.
- This has a suction tube 500 (arrow P3) which can be pivoted about an axis 501 against the spool 400 and by means of which a thread end can be sucked in from the spool 400.
- the bobbin 400 can be driven from the maintenance carriage 5 in a known manner in the unwinding direction, so that the thread end that is sucked in gets further and further into the suction pipe 500.
- the suction tube 500 has a longitudinal slot (not shown) on its side facing the open-end friction spinning device 10, so that the thread section sucked in between the slot end facing away from the spool 400 in the vicinity of the pivot axis 501 of the suction tube 500 and the spool 400 can take an elongated course .
- the thread 30 comes into the swiveling range of a thread clamp 7 known per se with two clamping elements, which alternate relative to one another into a holding position in which the two clamping elements abut one another, or into a release position. - 12 -
- the thread clamp 7 sits on the free end of an arm 70 which is mounted on the maintenance carriage 5 in such a way that it makes a first pivoting movement about a first axis 51 in a horizontal plane (arrow P4) and about a second pivoting axis 71 a second pivoting movement can perform in a vertical plane (arrow P5).
- a control device 52 which is connected in terms of control to a drive 502 for pivoting the suction pipe 500 and for controlling the negative pressure in the suction pipe 500 as well as a drive 510 and a drive 710 for pivoting the thread clamp 7 .
- the maintenance carriage 5 is to be maintained with the open-end friction spinning device 10 via electrical connections which can be switched on and off - which in the exemplary embodiment shown are plug contacts 113,. 250, 143 and 177 are shown - connected for tax purposes.
- the feed roller 21 5 is stopped in a known manner by the thread monitor 41 via the coupling 25, so that no more fibers enter the thread formation zone
- the bobbin 400 is lifted from the winding roller 401 in a known manner and held at a distance therefrom such that the bobbin 400 is freely rotatable.
- Thread 30 picks up. It feeds the thread 30 to a separating device (not shown) provided in the maintenance carriage 5, which separates the thread 30 on the side of the thread clamp 7 facing away from the bobbin 400. A certain thread length is created between thread clamp e 7 and the free thread end, which is required for piecing.
- the thread clamp 7 is then pivoted in a combined horizontal and vertical movement to the Cffenend friction spinning device 10. It is in a thread transfer position in front of the thread insertion slot 14 and presents the thread end 300 to it. It holds the thread 30 essentially parallel to the thread insertion slot 14 with the aid of the suction air nozzle 144 controlled by the maintenance carriage 5.
- the control device 52 of the piecing device 50 addresses the electromagnet 14, which swivels the friction spinning element 101 away from the friction spinning element 100.
- the control device 52 excites the electromagnet 176 so that it pushes the roller 171 between the whorl 108 and the drive belt 12. In this way, the friction spinning elements 100 and 101 are no longer driven in the same direction, but rather both rotate into the wedge gap 102 (see arrows P1 and P6 in FIG. 5).
- the control device 52 addresses the valve 110, which takes the negative pressure from the friction spinning element 100 and generates a negative pressure in the suction air nozzle 111 for this purpose.
- the fiber feed into the wedge gap 102 is now switched on again from the control device 52 via the coupling 25. Since the two friction spinning elements 100 and 101 are separated from one another by spreading, the fibers pass between the 5 two friction spinning elements 100 and 101 into the wedge gap 105, from where they are immediately removed again by the negative pressure prevailing in the suction air nozzle 111. In this way, the fibers that would have been damaged beforehand if the opening roller 22 continued to run and the feed roller 21 stopped were removed. 10? The rotation of both friction spinning elements 100 and 101 in the direction of the wedge gap 102 ensures that the fibers which are deposited on one of the rotating friction spinning elements 100 and 101 are fed by the rotation of the suction air nozzle 111 and thus removed.
- the thread 30 now enters the thread insertion slot 14 and reaches the circumference sf flat of the friction spinning element 100 rotating in the direction of the wedge gap 102. After reaching the thread formation zone 300, the thread 30 binds the rotating fiber
- the described open-end friction spinning device 10 can be modified in various ways, modifications being possible by exchanging features with one another or by replacing them with equivalents or combinations of features.
- the fibers are for discharging before the thread supply to the thread forming zone both Fritations ⁇ spin elements 100 ⁇ * nd 101 rotated in the direction of the wedge-shaped gap and in addition the friction spinning elements 100 and 101 radially away to form a gap between them from one another. If desired, the friction spinning elements 100 and 101 can also be stopped until they return to their spinning position. To remove the fibers, it is also sufficient to either remove the friction spinning elements 100 and 101 radially from one another or to turn both friction spinning elements 100 and 101 in the direction of the wedge gap 102.
- the fibers fed to the wedge gap 102 are deposited on the circumferential surfaces of the friction rollers 100 and 101 and, when they rotate, reach the wedge gap 105 on the other side of the plane E defined by the axes 103 and 104 of the friction spinning elements 100 and 101
- the fibers are -
- a conveyor belt 6 can also be provided, which can be guided in a guide 60 for protection against lateral air currents (FIGS. 4 and 5).
- the fibers are removed purely mechanically by reversing the direction of rotation of the friction spinning element 101 rotating out of the wedge gap 102 during the spinning process, so that it rotates into the wedge gap 102 just like the friction spinning element 100, and with the aid of the conveyor belt 6 Fiber removal is ended by a new reversal of direction of the friction spinning element 101, so that it turns out of the wedge gap 102 again.
- the fibers are sucked out before being spun on through a suction air nozzle 111 assigned to the fiber feed channel 24.
- This has the advantage that the fibers enter an externally closed system immediately after leaving the wedge gap 102.
- it is not absolutely necessary to arrange the suction air nozzle 111 opposite the fiber feed channel 24, as shown in FIG.
- a suction air nozzle 114 is provided which is controlled by a valve 115. Like the valve 110, this can be controlled from the control device 52 on the maintenance carriage 50. In this case, the fibers are sucked out of the wedge gap 102 parallel to it and must therefore be compared to that in FIG. 1 device can be deflected more strongly. However, this can be compensated for by a correspondingly dimensioned negative pressure in the suction air nozzle 114 ' . In this case, the removal of fibers from the wedge gap 102 is terminated by controlling the valve 115, i. H . by switching off the external pressure acting on the friction spinning elements 100 and 101 in the suction air nozzle 114.
- separately controllable valves 110 and 115 can be provided for the negative pressure in the friction spinning elements 100 and 101 on the one hand and in the suction air nozzle 111 and 114, respectively.
- this can be achieved most easily with the aid of a changeover valve.
- Fig. 3 shows a further modification of an off-end friction spinning device 10.
- the fiber feed channel 24 and the thread insertion slot 14 open side by side into the wedge gap 102.
- the thread 30 therefore does not need to be rotated by the
- Friction spinning element 100 to be brought into the wedge gap 102. It is also possible to feed the thread 30 directly to the wedge gap 102, while the fibers are deposited on the outer surface of the friction spinning element 100 rotating in the wedge gap 102. Even with such a design, the fibers from the
- Wedge gap 102 can be removed mechanically or pneumatically.
- a switch 8 is provided according to FIG. 4, which switches the valve 110 to Controls switching of the negative pressure from the suctionable friction spinning element 100 to the suction air nozzle 111 and vice versa.
- the housing 13 has a stationary housing part 133 which accommodates the friction spinning element 100 which can be sucked up and which rotates into the wedge gap 102. In this way, those fibers that are not directly fed to the suction air nozzle 111 but are deposited on the friction spinning element 100 remaining in the area of the mouth of the fiber pisis channel 24 are also fed through this friction spinning element 100 to the suction air nozzle 111.
- the friction spinning element 101 rotating out of the wedge gap 102 is movably supported on a housing part 134 which can be pivoted about an axis 15. Both the housing part
- the housing part 134 has a guide and sealing surface 135 or 136 concentric to the axis 15, so that a good seal of the housing 13 is achieved even when the friction spinning element 101 is switched off.
- the operating position of the movable friction spinning element 101 is ensured by a stop 16 which is adjustable relative to the stationary housing parts 133.
- the switch 8 can also be adjusted on the stationary housing part
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3533587 | 1985-09-20 | ||
DE19853533587 DE3533587A1 (de) | 1985-09-20 | 1985-09-20 | Verfahren und vorrichtung zum wiederanspinnen einer offenend-friktionsspinnvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0276208A1 true EP0276208A1 (de) | 1988-08-03 |
EP0276208B1 EP0276208B1 (de) | 1990-10-03 |
Family
ID=6281496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86904774A Expired - Lifetime EP0276208B1 (de) | 1985-09-20 | 1986-08-02 | Verfahren und vorrichtung zum wiederanspinnen einer offenend-friktionsspinnvorrichtung |
Country Status (9)
Country | Link |
---|---|
US (1) | US4781017A (de) |
EP (1) | EP0276208B1 (de) |
JP (1) | JPH0665766B2 (de) |
CN (1) | CN1007627B (de) |
BR (1) | BR8606884A (de) |
CZ (1) | CZ632286A3 (de) |
DE (2) | DE3533587A1 (de) |
IN (1) | IN168438B (de) |
WO (1) | WO1987001742A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8516262B2 (en) | 2001-04-16 | 2013-08-20 | Bjorn Markus Jakobsson | Methods and apparatus for efficient computation of one-way chains in cryptographic applications |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19529654A1 (de) * | 1995-08-11 | 1997-02-13 | Schlafhorst & Co W | Kreuzspulen herstellende Offenend-Spinnmaschine |
CN100443632C (zh) * | 2006-11-20 | 2008-12-17 | 中国重型汽车集团有限公司 | 一种低温锌系磷化液 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1584247A (de) * | 1968-02-07 | 1969-12-19 | ||
DE2103171C3 (de) * | 1971-01-23 | 1974-10-03 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Vorrichtung zum Verspinnen eines Faserbandes nach dem Offen-End-Prinzip |
AT338666B (de) * | 1976-02-17 | 1977-09-12 | Fehrer Ernst Gmbh | Vorrichtung zum spinnen textiler fasern |
GB2042599B (en) * | 1978-10-26 | 1983-09-21 | Platt Saco Lowell Ltd | Open-end spinning apparatus |
CS227602B1 (en) * | 1980-02-13 | 1984-04-16 | Jiri Ing Elias | Method of and apparatus for yarn spinning-in in open-end spinning unit |
ATE10957T1 (de) * | 1980-02-16 | 1985-01-15 | Hollingsworth (U.K.) Limited | Offen-end-spinnvorrichtung und -verfahren. |
DE3168150D1 (en) * | 1980-10-08 | 1985-02-21 | Hollingsworth Uk Ltd | Friction open-end spinning method and apparatus |
DE3141733A1 (de) * | 1980-10-23 | 1982-06-03 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | "vorrichtung zum offenendspinnen" |
DE3317361C2 (de) * | 1983-05-13 | 1994-03-17 | Schlafhorst & Co W | Verfahren und Vorrichtung zur Inbetriebnahme eines Friktionsspinnaggregates |
DE3318687C2 (de) * | 1983-05-21 | 1995-07-06 | Schlafhorst & Co W | Verfahren und Vorrichtung zur Inbetriebnahme eines Friktionsspinnaggregats |
CS240166B1 (en) * | 1983-10-04 | 1986-02-13 | Stanislav Skoda | Fibre liberation device with spinning unit |
DE3339129A1 (de) * | 1983-10-28 | 1985-05-09 | Fritz 7347 Bad Überkingen Stahlecker | Verfahren und vorrichtung zum reinigen eines spinnaggregates einer oe-friktionsspinnmaschine |
DE3342472A1 (de) * | 1983-11-24 | 1985-06-05 | Fritz 7347 Bad Überkingen Stahlecker | Verfahren zum anspinnen eines garnes an einem spinnaggregat einer oe-friktionsspinnmaschine und oe-friktionsspinnmaschine |
DE3403964A1 (de) * | 1984-02-04 | 1985-08-08 | Fritz 7347 Bad Überkingen Stahlecker | Vorrichtung zum oe-friktionsspinnen |
DE3417308A1 (de) * | 1984-05-10 | 1985-11-21 | W. Schlafhorst & Co, 4050 Mönchengladbach | Verfahren und vorrichtung zum fadenansetzen bei friktionsspinnmaschinen |
DE3432622A1 (de) * | 1984-09-05 | 1986-03-13 | Fritz 7347 Bad Überkingen Stahlecker | Vorrichtung zum oe-friktionsspinnen |
-
1985
- 1985-09-20 DE DE19853533587 patent/DE3533587A1/de active Granted
-
1986
- 1986-08-02 DE DE8686904774T patent/DE3674805D1/de not_active Expired - Fee Related
- 1986-08-02 BR BR8606884A patent/BR8606884A/pt unknown
- 1986-08-02 US US07/055,627 patent/US4781017A/en not_active Expired - Fee Related
- 1986-08-02 EP EP86904774A patent/EP0276208B1/de not_active Expired - Lifetime
- 1986-08-02 JP JP61504317A patent/JPH0665766B2/ja not_active Expired - Lifetime
- 1986-08-02 WO PCT/DE1986/000318 patent/WO1987001742A1/de active IP Right Grant
- 1986-09-01 CZ CS866322A patent/CZ632286A3/cs unknown
- 1986-09-20 CN CN86106956A patent/CN1007627B/zh not_active Expired
- 1986-12-16 IN IN980/MAS/86A patent/IN168438B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8701742A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8516262B2 (en) | 2001-04-16 | 2013-08-20 | Bjorn Markus Jakobsson | Methods and apparatus for efficient computation of one-way chains in cryptographic applications |
Also Published As
Publication number | Publication date |
---|---|
DE3674805D1 (de) | 1990-11-08 |
IN168438B (de) | 1991-04-06 |
CN86106956A (zh) | 1987-09-09 |
JPS63503153A (ja) | 1988-11-17 |
EP0276208B1 (de) | 1990-10-03 |
WO1987001742A1 (en) | 1987-03-26 |
CZ632286A3 (en) | 1993-04-14 |
DE3533587A1 (de) | 1987-04-16 |
JPH0665766B2 (ja) | 1994-08-24 |
BR8606884A (pt) | 1987-11-03 |
DE3533587C2 (de) | 1989-01-12 |
US4781017A (en) | 1988-11-01 |
CN1007627B (zh) | 1990-04-18 |
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