US3845913A - Method and apparatus for winding wire - Google Patents

Method and apparatus for winding wire Download PDF

Info

Publication number
US3845913A
US3845913A US00305493A US30549372A US3845913A US 3845913 A US3845913 A US 3845913A US 00305493 A US00305493 A US 00305493A US 30549372 A US30549372 A US 30549372A US 3845913 A US3845913 A US 3845913A
Authority
US
United States
Prior art keywords
wire
spool
auxiliary
main spool
main
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.)
Expired - Lifetime
Application number
US00305493A
Other languages
English (en)
Inventor
W Hagen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Niehoff GmbH and Co KG
Original Assignee
Maschinenfabrik Niehoff GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19712165798 external-priority patent/DE2165798C3/de
Application filed by Maschinenfabrik Niehoff GmbH and Co KG filed Critical Maschinenfabrik Niehoff GmbH and Co KG
Application granted granted Critical
Publication of US3845913A publication Critical patent/US3845913A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B21C47/245Devices for the replacement of full reels by empty reels or vice versa, without considerable loss of time
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements

Definitions

  • the material is wound about a main spool by providing an auxiliary spool coaxial therewith and by winding a predetermined length of the materialsuch as the wire about the auxiliary spool. Subsequently the wire is fed linearly or end-wise over a loop forming device having a smaller periphery than the core of the auxiliary or main spool and thereafter continuously over an annular flange of the main spool to be wound on the core of the main spool.
  • SHEET 10F 2 1 METHOD AND APPARATUS FOR WINDING WIRE BACKGROUND OF THE INVENTION The present invention relates to a method and apparatus for winding continuous rod like material on spools and in particular to the transfer of wire from one spool to another during winding.
  • the winding of wire in predetermined lengths employing a first spool on which the length of wire is first drawn and a second or main spool on which the wire is finally wound is known.
  • the deflecting pulley is located to the side of the main spool in the plane of the flange separating the main and the auxiliary spools and is operated by means of a control mechanism so that its axis of rotation may be swung about within an acute angle bound by an arc of 90.
  • the known arrangements have numerous disadvantages.
  • the wire may suddenly slip and loose traction creating in the wire a twist or other blow exceeding the strength of the wire.
  • the wire either tears or is deformed, generally in a manner that is not easily noticeable.
  • the latter situation is in particular undesirable, since should the wire be subsequently annealed through the use of electrical resistance heating, then the deformed portion of the wire produces an electrical resistance change which might result in temperatures insufficient for the desired result.
  • material is wound about a main spool by providing an auxiliary spool coaxial therewith and by winding a predetermined length of the material such as the wire about the auxiliary spool. Subsequently the wire is fed linearly or end-wise over a loop forming device having a smaller periphery than the core of the auxiliary or main spool and thereafter continuously over an annular flange of the main spool to be wound on the core of the main spool.
  • the apparatus is characterized by the fact that the loop forming device is formed from a disk arranged intermediate the auxiliary and main spools.
  • the wire contacts at least a portion of the edge to form a loop thereabout, the thickness or width of the disk being at least equal to the diameter of the wire.
  • the disk forming the looping device be provided with a radially extending portion which extends beyond the flange of the main spool and is simultaneously bent in the direction of the main spool. This extending portion is contacted by the wire and serves to conduct or lead the wire from the looping device over the flange on to the main spool. Also, it is advantageous that the bearing surface along the edge of the diskmember forming the loop device with which the wire comes into contact, is at least provided with highly frictional or high traction portions such as longitudinal grooves or splines.
  • thelength of the wire loop can be adjusted so, as to control the winding operation.
  • This is obtained by forming the disk about which the wire is looped of two parts, at least one of the two parts being reciprocably adjustable with respect to the other through manual, electrical, mechanical, pneumatic, or hydraulically operated'means.
  • the adjustment of the looping device is accomplished automatically from without the apparatus so as to make the apparatus fully automatic and instantaneously responsive to wire gauging and feeding measuring devices such as a computer or the like without the need to stop the wire during operation.
  • annular guide ring between the auxiliary spool and the looping device, which ring has a radial slit bent in the direction of the auxiliary spool, to direct the wire smoothly and without stress from the auxiliary spool onto the looping device.
  • the looping and/or the annular guide ring are swingable about the axis of the spools and there fixed in place at any desirable position, so
  • the offset between the slit in the annular ring and the guide surface on the extending portion of the disk forming the looping device can be offset predetermined distances from each other. It is also possible to form the auxiliary spool and the annular split ring of a unitary assembly or of an integral construction.
  • FIG. 1 is a front elevational view of apparatus embodying the present invention showing a main spool, an auxiliary spool and a loop forming device located therebetween;
  • FIG. 2 is a sectional view taken along lines llll of FIG. 1 in which the looping device is shown in elevation;
  • FIG. 3 is a sectional view taken along lines lll-lll of FIG. 2 in which the annular slit ring is shown;
  • FIG. 4 is a view similar to FIG. 2 showing a one piece looping device arranged in normal position so that the looping of the wire runs from points A C over a point B wherein the points A and C are arranged on the same axis;
  • FIG. 5 is a plan view corresponding to HO. 4.
  • FIG. 6 is a perspective view of the apparatus showing the feeding of the wire from the auxiliary spool over the loop forming device and thereafter over the flange of the main spool to the winding portion thereof wherein the points A and C lie on different axial lines.
  • a pair of space flanges l and 2 define the axial limits of a core 3 of a main spool 4 having a diameter D and a circumferential area 8' about which a length of wire W may be continuously wound.
  • the auxiliary spool 5 extends outwardly from the main spool and terminates in a flange 7 on which a clamping and cutting device 6 is arranged.
  • the spool 5 is also provided with a core 9 having a diameter D1 equal to the diameter D of the core 3, although it may, if desired. be different.
  • the circumferential area 8 of the core 9 provides a winding space which is defined at its outer limits by the flange 7.
  • the clamping and cutting means 6 is arranged in a radially elongated hole L (FIG, 6) and is thus adjustable so as to be positionable in a fixed location in relation to the wire speed, to provide a larger or smaller circumferential orbit as desired.
  • a loop forming device 10 and a transfer ring 11 are arranged between the two spools 4 and 5.
  • the ring 11 defines the inner limit of core 9 and is formed of an annular piece of sheet metal having a generally radially extending slit 12, as seen in H0. 3.
  • the adjacent ends or lapping edges 13 formed by the slit 12 are bent outwardly in the direction of the winding area 8 so that the wire W can be securely transferred from the core 9 of the auxiliary spool to the loop forming device 10.
  • the loop forming device 10 itself is formed as a flat disklike member 14 whose width S is at least the same or greater than the diameter of the wire W.
  • the disk member 14 as seen in FIG. 1 and 2 is formed to have a semi-circular bottom portion 16 over which the wire loops in sliding engagement and a radially extending upper portion 17 which has at least one edge bent as at 15 to extend over the edge of the adjacent flange 2.
  • a longitudinal groove LR is formed in the peripheral surface of the disk 14 in which the wire is adapted to run.
  • the upper portion 17 has both its edges bent in the direction of the winding area 8' of the main spool 4 so that a guiding slide surface on which the wire W may ride is formed.
  • the two portions 16 and 17 of the disk member 14 are separable and adjustable relatively to each other, while as seen in FIG. 4, the looping device may be formed of one piece, disk member 14 having a lower portion 16 and an upper portion 17. ln either case the disk member 14 is so arranged as to be rotatable relatively about the axis of the spools.
  • the radius of the lower portion 16 of the disk member 14 is less than the radius of both of the cores 3 and 9 of the main and auxiliary spools, as seen in FIG. 2, so that the periphery of the looping device intermediate the two spools, is smaller than either of the cores 3 and 9.
  • the overlapping edges 13 of the slit 12 provides the initial point A for the transfer of the wire from the auxiliary spool 5 to the main spool.
  • the wire W then loops about the intermediately located disk member 14 and up over the extending portion 17 to engage the flange 2 at a point B.
  • the wire engages the core 3, about which it is wound, at a point C, forming the covering of the main spool 4.
  • Point C lies along the surround cover defined by the layer of wire wound about the core 3.
  • Point A defining the beginning of the loop would lie on the same axial line m, parallel to both cores 3 and 9, as the point C as seen in FIGS. 4 and 5.
  • the diameters D and D1 of the spools are the same the wire length of the loop about the disk 14 from point A to point C over the point B would be equal to D X 1r.
  • the intermediate disk member 14 of the looping device has a larger diameter than the core of spools or for some other reason, does not have a sufficiently small radius to accomodate the diameter of the wire, then it is necessary to either turn the annular ring 11 or the intermediate disk member 14 about the longitudinal axis of the spools so as to adjust the position of the slit 12 relative to the looping device so that the wire W is passed over and runs over the loop forming device 10 at an earlier stage. That is, the point A is made to lie, for example, along an axially parallel line offset from line m closer to or even coinciding with the point B.
  • the loop length from A to C over the point B then equals D X 1r X whereby X is a correction factor which in practice defines the measure of the are between points A and C as if a linear addition were made based upon a planar development of the points A and B, and for the are between B and over flange 2 in the same manner.
  • X is a correction factor which in practice defines the measure of the are between points A and C as if a linear addition were made based upon a planar development of the points A and B, and for the are between B and over flange 2 in the same manner.
  • the points A and B thus lie upon the axial line m, being on the cover of the wound wire, while thepoint C isoffset therefromcurely adjusted to correspond to any modificationin the wire-diameterand modification in the circumference D 11', which wouldcause any change in the length of the loop.
  • the portion 17 of the looping de-' vice which normally extends over the flange 2', is fixedly secured to the flange while the lower portion 16 is provided with a rectangular hole through which an eccentrically mounted or an eccentrically peripheral cam 18 extends. Rotation of the cam 18 about its axis will reciprocate the portion 16 upwardly or downwardly with respect to the portion 17 along in the direction shown by the double arrow 19 in FIG. 2.
  • the looping device is adjustable to change the length of the loop to accomodate both factors.
  • the portion 16 is provided with avertical,
  • the portion 16 may be made to move further away or further toward the portion 17 without lateral deflection, thus extending or contracting the looping length with which the wire is intended to come into contact with.
  • the surface of the portion 16 with which the wire comes into contact is preferably formed with longitudinal grooves or splines to provide increased traction for the transfer.
  • the cam 18 extends outwardly of the auxiliary spool and terminated in a square key by which it may be manually adjusted.
  • the key 20 may, on the other hand,be connected by known pulley or transmission means to a suitable electrical or pneumatic or hydraulic motor of any known type so that it may be automatically adjusted.
  • the motor means chosen for this operation may be connected to a computer or similar automatic control mechanism through which the tension as well as the winding of the wire is sensed and in response to which the cam 18 may be adjusted.
  • the automatic operation of key 20 is preferred when the diameter of the material is very variable and a continuous adjustment in the looping length is desired. in this manner a fully continuous shock free transfer of the wire from the auxiliary to the main spool can be obtained.
  • the present apparatus functions in the following manner:
  • the wire W is fed in the direction of arrow A to the apparatus from a stationary or even rotating coil storage drum. either by hand or by a suitable automatic feed.
  • the wire is first fastened to the clamping mechanism 6 and a suitable or desirable length of wire such as the damaged end is cut therefrom and wound in one or more windings'on the core 9 of the auxiliary spool 5.
  • the cut end of the wire W is then inserted within the lapping edges 13 of the annular plate 11 by conventional apparatus, not shown in the drawings. As soon as the wire W is placed in this position it becomes fixed at the point A defining it at beginning of the loop.
  • the spools are rotated about their central axis and the wire is passed over the looping device, where it is transferred and thereafter wound about the main spool in the direction of the arrow 22 as seen in FIG. 6 (the wire being shown by the dot-dash line).
  • the wire W takes the form of a loose or 6' open loop'stored'aboutthe intermediately positioned looping means 1 0 andjextends to the point B over which it passesthe flange 2 onto the main spool. Thereafter,'the wire passes onto the core 3 of the main spool contacting it at'thepoint C.
  • the apparatus provides means for maintaining the wire in stress-free condition, as the windings are being transferred from the auxiliary spool 5 to the main spool 3. Under ordinary conditions the stress-free winding can only be obtained, if the winding length removed from the auxiliary core 5 is equal to the winding length placed on the main core 3. This is not normally possible in using a main core which is flanged, since either the wire length must be increased to pass over the flange or the wire itself is stressed and stretches to do so.
  • the intermediate loop forming device comprising the parts 16 and 17, a length of wire equal to that to be placed on the core 3 can be removed from the auxiliary core 5, and guided so as to be placed onto the main core without stress.
  • the intermediate loop forming device of two parts, namely the semi-circular portion 16 and the extended portion 17, the amount of wire looped thereon can be selectively adjusted to maintain this length.
  • the diameter of the portion 16 is smaller than the core, so that the wire can be accomodated on the portion 17 which must radially extend over the flange.
  • the wire is at all times under proper traction within the looping device, and possibility of its slipping or loosing hold as it is transferred is virtually eliminated. Further, the wire is transferred from one spool to another in a smooth continuous manner without undue twist or damage to its surface or density. Adjustment of the looping device to provide a greater or lesser loop length and adjustment of the slit guide disk relative to the looping device enables even greater surety and speed during operation.
  • the provision of a looping device, having an edge, with which the wire is in continuous contact during transfer, which edge is of sufficient circumference and provided with traction means. enables the storage of a sizable loop intermediate the auxiliary and main spools. Further, the
  • the auxiliary spool S, the annular guide ring 11 and the looping device may be formed of a unitary assembly, in which the parts are rotatably secured together, and the whole is adjustably and removably attached to the flange 2.
  • the apparatus is simple and may be inexpensively made from stamped sheet and stock metals. Thus the apparatus may be provided as original equipment for new winding machines or upgrading equipment for existing machinery so as to modernize and increase their productive capacity.
  • the present invention may also be used to great advangage in those devices employing a well known dancer or looping pulley.
  • the accumulation of wire surplus, in a very short time interval, can be easily retained on the present loop forming device, compared to the dancer which is not able to respond quickly enough to the created surplus to equalize the loop, since the mass inertia of the dancer and the wire speed lie in an entirely different order of magnitude.
  • Apparatus for transferring wire or the like from one spool to another comprising a main spool and an auxiliary spool coaxially arranged therewith about a central spindle said main spool having a core and a flange at each end, loop forming and storage means mounted about said spindle between said main and ux iarxspqol jai l n sam iaad tqra efiaa comprising a first member having an arcuate peripheral edge over which said wire is adapted to move and a second member having an extending portion for guiding said wire over the adjacent flange, said peripheral edge having a radius smaller than the core of said main spool, and said extending portion protruding radially beyond said flange, and means for feeding a predetermined length of wire to said auxiliary spool to be wound thereabout, said wire being subsequently fed to said loop forming and storage device and thereafter wound about said main spool.
  • said first member comprises a flat disk the width of said disk member being at least equal to the diameter of said wire.
  • peripheral edge is provided with longitudinal grooves adapted to receive said wire.
  • said adjustment means includes a cam extending outwardly of said auxiliary spool and engaging within a hole formed in said peripheral edge portion.
  • the apparatus according to claim 1 including an annular plate arranged between said loop forming and storage means and said auxiliary spool, said plate having a diameter greater than said auxiliary spool and a radial slit through which said wire is adapted to pass.
  • annular plate and said looping and storage means are mounted to be radially adjustable about the axis of said spools relative to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
US00305493A 1971-12-31 1972-11-10 Method and apparatus for winding wire Expired - Lifetime US3845913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712165798 DE2165798C3 (de) 1971-12-31 Vorrichtung zum kontinuierlichen Überleiten von Stranggut, insbesondere von Draht

Publications (1)

Publication Number Publication Date
US3845913A true US3845913A (en) 1974-11-05

Family

ID=5829819

Family Applications (1)

Application Number Title Priority Date Filing Date
US00305493A Expired - Lifetime US3845913A (en) 1971-12-31 1972-11-10 Method and apparatus for winding wire

Country Status (4)

Country Link
US (1) US3845913A (it)
JP (1) JPS5146230B2 (it)
GB (1) GB1397637A (it)
IT (1) IT971908B (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130249A (en) * 1977-12-01 1978-12-19 Orion Machinery & Engineering Corp. Wire spooler
US4157792A (en) * 1976-06-21 1979-06-12 N. V. Bekaert S.A. Transport mechanism for changing bobbins in a winding-up apparatus for wire
US4643368A (en) * 1983-09-06 1987-02-17 Syncro Machine Co. Continuous spooler for and method of winding reels with selected length long ends
US4696438A (en) * 1986-10-24 1987-09-29 American Telephone And Telegraph Company At&T Technologies, Inc. Spool for holding optical fiber
WO1996026880A1 (en) * 1995-02-27 1996-09-06 Ceeco Machinery Manufacturing Ltd. Apparatus for and method of continuously spooling a continuous filament on reels with accessible long inside ends
US5988556A (en) * 1997-08-22 1999-11-23 Corning Incorporated Method and apparatus for winding fiber on a spool
US8624698B2 (en) * 2011-12-28 2014-01-07 Samsung Electro-Mechanics Co., Ltd. Transformer and power module having the same
CN111573405A (zh) * 2020-05-21 2020-08-25 金元萍 一种纺织生产用带倒立式缠绕装置的拉丝机
CN112899840A (zh) * 2021-03-19 2021-06-04 宁波兴宝华刷业有限公司 一种工业刷丝的制作机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341369A (en) * 1942-11-26 1944-02-08 Syncro Mach Co Wire coiling mechanism
US3011730A (en) * 1960-05-31 1961-12-05 Syncro Mach Co Wire end eliminator for wire coiling machine
US3596844A (en) * 1968-05-14 1971-08-03 Niehoff Kg Maschf Method and apparatus for continuously winding filamentary material
US3620482A (en) * 1969-09-08 1971-11-16 Gen Cable Corp Separator for unprocessed wire in reeling and winding apparatus
US3625448A (en) * 1969-04-28 1971-12-07 Rodney J L Griffiths Scrap takeup
US3661335A (en) * 1970-04-24 1972-05-09 Northern Electric Co Anti-ricochet wire guard

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341369A (en) * 1942-11-26 1944-02-08 Syncro Mach Co Wire coiling mechanism
US3011730A (en) * 1960-05-31 1961-12-05 Syncro Mach Co Wire end eliminator for wire coiling machine
US3596844A (en) * 1968-05-14 1971-08-03 Niehoff Kg Maschf Method and apparatus for continuously winding filamentary material
US3625448A (en) * 1969-04-28 1971-12-07 Rodney J L Griffiths Scrap takeup
US3620482A (en) * 1969-09-08 1971-11-16 Gen Cable Corp Separator for unprocessed wire in reeling and winding apparatus
US3661335A (en) * 1970-04-24 1972-05-09 Northern Electric Co Anti-ricochet wire guard

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157792A (en) * 1976-06-21 1979-06-12 N. V. Bekaert S.A. Transport mechanism for changing bobbins in a winding-up apparatus for wire
US4130249A (en) * 1977-12-01 1978-12-19 Orion Machinery & Engineering Corp. Wire spooler
US4643368A (en) * 1983-09-06 1987-02-17 Syncro Machine Co. Continuous spooler for and method of winding reels with selected length long ends
US4696438A (en) * 1986-10-24 1987-09-29 American Telephone And Telegraph Company At&T Technologies, Inc. Spool for holding optical fiber
WO1996026880A1 (en) * 1995-02-27 1996-09-06 Ceeco Machinery Manufacturing Ltd. Apparatus for and method of continuously spooling a continuous filament on reels with accessible long inside ends
US5593101A (en) * 1995-02-27 1997-01-14 Ceeco Machinery Manufacturing, Ltd. Apparatus for and method of continuously spooling a filament on reels with accessible long inside ends
US5988556A (en) * 1997-08-22 1999-11-23 Corning Incorporated Method and apparatus for winding fiber on a spool
US8624698B2 (en) * 2011-12-28 2014-01-07 Samsung Electro-Mechanics Co., Ltd. Transformer and power module having the same
CN111573405A (zh) * 2020-05-21 2020-08-25 金元萍 一种纺织生产用带倒立式缠绕装置的拉丝机
CN112899840A (zh) * 2021-03-19 2021-06-04 宁波兴宝华刷业有限公司 一种工业刷丝的制作机构
CN112899840B (zh) * 2021-03-19 2024-05-28 宁波兴宝华刷业有限公司 一种工业刷丝的制作机构

Also Published As

Publication number Publication date
DE2165798B2 (de) 1976-02-12
GB1397637A (en) 1975-06-11
IT971908B (it) 1974-05-10
JPS5146230B2 (it) 1976-12-08
DE2165798A1 (de) 1973-07-12
JPS4877261A (it) 1973-10-17

Similar Documents

Publication Publication Date Title
US3997122A (en) Method and apparatus for wrapping multiple tapes upon an elongated structure
EP0822916B1 (en) Apparatus for and method of continuously spooling a continuous filament on reels with accessible long inside ends
US3845913A (en) Method and apparatus for winding wire
US4202512A (en) Level layer winding method and apparatus
CA1209557A (en) Apparatus for paying off wire from a bobbin
US20110198432A1 (en) Yarn grasping device for automatic yarn transfer in turret type winders
US2629564A (en) Wire-laying machine
US2830431A (en) Strand twisting machine
US3237876A (en) Attachment for bobbin winding equipment
US4024696A (en) Method and apparatus for wrapping multiple tapes upon an elongated structure
US4768725A (en) Apparatus for winding a filament onto a former, having guide structure for reducing filament bending
EP0372626B1 (en) Wire take-off apparatus and pay-off installation comprising such apparatuses
US4640086A (en) Electrical insulation taping machine with uniform tape tensioning
US3593558A (en) Payoff reel controller
US4754633A (en) Methods and apparatus for drawing wire
US2842323A (en) Flyer for supply stands
US3707415A (en) Filament winding
US4098063A (en) High speed fly-off strander
US3628741A (en) Device for winding textile threads
JPS6146389B2 (it)
US2963240A (en) Apparatus for unreeling wire
US3767130A (en) Strand handling
GB1571289A (en) Method and apparatus for wrapping multiple tapes upon an elongated structure
US1625983A (en) Method of and apparatus for wrapping strand material around alpha core
JP2867328B2 (ja) 引取キャプスタンの線寄せ装置