FR2476620A1 - METHOD AND APPARATUS FOR WINDING METAL WIRES ON CHUCKS - Google Patents

Abstract

A PROCESS FOR WINDING A METAL WIRE ON A CHUCK 4, WHICH MAKES A LARGE DENSITY OF WIRE OBTAINED WITHOUT WIRES WELDING ONE TO THE OTHERS DURING A SUBSEQUENT annealing, CONSISTS IN GIVING THE WIRE A TRANSLATION MOVEMENT ALONG THE CHUCK ANIMATED WITH A ROTATIONAL MOVEMENT AT A SPEED SUCH THAT IN EACH "PASS" THE ADJACENT SPIRES ARE SPACED FROM EACH OTHER, TO REGULATE THE WIRE TENSION AND TO GRADUALLY MODIFY THE TRANSLATION SO AS TO OBTAIN A PROGRESSIVE DECREASE UP TO ZERO OF THE SECTION OF THE GROUND OF WIRE WOUND IN DIRECTION OF EACH END OF THE CHUCK, WHICH MAY CONSIST OF A SINGLE CYLINDRICAL TUBE WITH A 15 YEAR TO ONLY ONE OF ITS ENDS, OR INCLUDE AN EXTENDED CYLINDRICAL TUBULAR PART ONE OF ITS ENDS BY A DIVERGENT TRUNCONIC PART.

Description

24,76620

  The present înventi @ concerns a proeëdô pou ec-: roll 3u metallic wire su. % .sm = in et dos aparei l for the implementation of eo paîoode a3si that bi 3Les of i1 mitallique thusL ebeeos It is ceun 9co r aed Cn. núil d allic.e Or a chuck poeur get u-.ne * desit, de fúi] suprLeure à ce

  that it is daos a bobmine @ 'le chill this siîlment en-

  roll on himMe = e3G But i! famt then nroUlerr the f! 1 be 'on u msandrin nruani to his cheek eoetrmi6so that we remove after the bobimn wire has been attached to the e

  past links between him and the rndLdrîn and whose extreai-

  tees are attached to the outside of the wire bundle9 or on a mnmi mandrel of permanent cheeks where the wire is wound forward by one cheek towards the knuckle or with a single permanent cheek on which it stands upright with the wire being then bLebiOn from the bottom to the top9 then h aUt to the bottom. In the 9th case, the feel of the thread oppies leaves the ear (ee1 I e sJ} oee cot teel ue any subsequent heat treatment of the fix bobim (e before unrolling it), by euenpletra ee reem eie often for the effect of a be idgreblo of

  whorls to each other o de e sor qute le bo2bn de-

  either Either impossible, or diúficileg eon in the eye = the case has a loss of thread, as well as tempe and work to raise the thread deotor (e%

  restore a continuous eilemeiemt.

  The main object of the invention is therefore to supply a process for the annealing of wire oSalli um on n mrnzedi

  which does not have the above disadvantages.

  She has a secondary object for a camera

implementation of this process.

  Finally, it aims to provide coils of metal wire obtained by winding the wire by the process

  according to the invention and which facilitate the use of the ap-

the same according to the invention.

  In one of its aspects, the invention therefore provides a method of winding metal wire on a mandrel, which consists in fixing on the mandrel one end of the wire, in rotating the mandrel while moving the wire along the latter. at such a speed that in each

  passes the adjacent turns are spaced from each other

  very, to control the tension of the wire in the course of winding and to gradually modify the displacement of the wire along the mandrel so that in the coil obtained the mass of wire occupies three zones: a central zone, having

  a constant section, and two end zones, each of which

  cune has a section which decreases progressively since a

  section equal to that of the central zone up to a sec-

null.

  As a result, the turns of wire in a pass do not

  are not substantially parallel to those of the ad passes

  pressure and pressure is not allowed between the portions of wire that cross in the adjacent passes

  to take a value such as a heat treatment

  the inside of the wound wire can have the effect of soldering a considerable number of turns to each other, even

- 20 near the mandrel.

  This may include a cylindrical tube, which

  can be fitted with a cheek at one end only, the mo-

  progressive modification of the displacement of the wire along the

  mandrel being carried out by gradually decreasing the length of this displacement from the two ends of the

  mandrel, which gives the envelope side of the central part

  trale a cylindrical shape and that of each of the zo-

  nes extremes a frustoconical shape, and the speed of -dimi-

  The length of the passes is preferably equal in both directions, so that in combination with the tension of the thread, the solidity of the lateral parts of the

  mass of wound wire (i.e. end sections

  conical) is sufficient to prevent the

  turns of the ends when the mandrel is brought in

  vertical position, whichever of its ends is placed at the bottom, unless it only presents

  one cheek, the coil obtained then resting usual-

on this one day.

  As a variant, the mandrel may consist of a tube having a cylindrical part, one end of which forms only one with the small base of a frustoconical part, the length of the displacement of the wire along the mandrel (or

  pass) being slightly lower than that of the cy-

  lindrique and the progressive modification of this displacement

  consisting of gradually shifting it from the cylinder part

  drique towards the large base of the troneonic part, so that in the coil obtained, one of the extreme zones has a frustoconical external face of revolution and an internal cylindrical face of revolution which follows the internal cylindrical face of revolution this part, while the other eGtreme area has a flight path ln

  frustoconical interior and a face of revolution outside ey-

  lindrique, who follows the dream faoe @ luti n eztorne

cylindrical of the central part.

  The coil thus obtained can easily rest on the large base of the frustoconical part of the lndrmin, it is stacked by this female cone on the male cone at the other end of a siuilairee coil It is preferable that the mnarine toarne on n axis horizontal during the bobimage of filv mume ei at the neck of a subsequent reel it can be mounted very quickly, with one or other of its ends internally or

  outdoorTorno-conical tent torn6oe towards eaut for faci-

  to read the emptying of the fMt for the hatu From this point the points on the periphery of the bin The rotation in manmriai is preferably om4

  so that the wire is wound up at a constant linear speed

  aunt, this qzi facilitates, 'tapplicati.on eu eu tencion coneo aante, but it is pre realle ue the vituse of ro.atia of the mandrel and the tension of the wire can 8rereles indé

  one of L atrzg to be able to adapt the systems

  I have a great variety of wire diameters. It is however

  already considering a diameter of 200 to about this maximum size of wire wound according to this procedure. The speed of movement of the wire along the mandrel is preferably adjustable so that the pitch of the turns in any pass can be adjusted according to the size of the wire. The method according to the invention is considered to be valid for any wire diameter up to 1.00 mm. The minimum pitch considered suitable is 6 mu for wires less than 1.00 mm in diameter and the maximum pitch considered to be achievable is 76 mu. In a specific example, a pitch of 32 m was used for a 0.46 mm wire wound on a cylindrical mandrel having a length of 550 mm and a diameter of 127 μm, with a reduction in the length of displacement of the wire of 0.025 mm per pass and a tension of 3 to 4 kg at 447 m / min, and it was thus possible to wind 80 to 90 kg of wire with solid end portions having a half-angle angle of 30 °. For a wire of 0.37 mu in diameter, the decrease in pass length would be 0.025 mu for 13 passes, while for a wire of 0.62 mm in diameter, it would be 0.038 nm per pass. In another of its aspects, the invention provides an apparatus for winding metal wire on a mandrel, which comprises a b & ti on which a shaft is rotatably mounted with an adapter capable of being kinematically linked to

  a mandrel, motor and transmission means for on-

  rotating the said shaft ', guiding means for bringing the wire to be wound close to that which is already

  rolled up and to move it along the mandrel and the means

  control set to gradually change the move-

  ment corresponding guide means.

  The shaft is preferably driven in rotation by the motor and transmission means when the mandrel is in the horizontal position, but it is preferable that it comprises means, which can be uncoupled for one of the ends of the mandrel and support means which pivot on a horizontal axis for the other end of the

  mandrel, in order to be able to bring it into the green position

  loading and unloading. The pivoting support means are preferably provided with a

  lever and a double-acting cylinder to facilitate pivoting

  chuck between its two horizontal and vertical positions. It is however possible that the rotation of the mandrel takes place in the vertical position of the latter. In this case, additional means for 15

  bring in this position for loading and d-

loading is not necessary.

  The guide means are preferably mounted on

  a trolley movable on a slide parallel to l1ar-

  bre when the latter is rotated by the means

  ens engines and transmission and the means to modify

  gradually the displacement of the guide means

  preferably consist of a pair of limit switches 1 of the stroke adjacent to the respective ends of the carriage,

  with which they can come into contact with the respective stop

  tives mounted on a threaded rod (which may have a thread-

  right hand propeller thread and left hand propeller thread

  with a stopper on each thread) which extends paralllc-

  the slide of the carriage, the tigo filetre being suitable

  te to rotate slowly and / or intermittently depending on the wire feed speed or the rotation speed

  of the portemandrin tree or the speed of movement

  cement guide means, 2açon to change the placement of the wire along the mandrel at both ends of eelui thereof. The movement for the displacement means can be drawn, with gear reduction, from the driving means

  and drive the mandrel, or it can be pulled from oy-

independent ens.

  30.It is designed to give tension to the thread during winding of the retaining means which can be of any known type. It can be, for example, a capstan with a wire guide arm and a brush, and / or

  staggered pebbles. These retaining means are pre-

  easily adjustable rail, for example by adjusting the de-

  thanks to the interference of. the brush and / or by adjusting the inter-

  valley between adjacent rollers, as appropriate. The guys-

  staggered batches are particularly advantageous because they

  can also be used to straighten the wire.

  In yet another aspect, the invention

  provides a spool of wire which has a

  cylindrical tubular drin with a cheek at one end only, wire having been wound

  on this mandrel according to the method according to the invention.

  The end of the mandrel away from the cheek is preferably

  with a notch in which can engage

  a protrusion on the adapter mounted on the shaft of the appliance

reil according to the invention.

  Finally, in yet another aspect, the invention provides a coil of metal wire comprising a mandrel comprising a cylindrical tubular part and a part

  frustoconical whose small base is one with an ex-

  end of the cylindrical part, metal wire having been wound on the two parts of this mandrel in accordance

  to the process according to the invention. The end of the tu-

  cylindrical bular distant from the frustoconical part is

  preferably provided with a notch in which can be

  a protrusion of the adapter mounted on the drive shaft

  dragging of the apparatus according to the invention.

  The wire can be annealed with

  lant, operation which takes place on the mandrel after the coil

  ge, without significant welding of the turns together, even in

  areas near the mandrel. It has been found that, by

  parison with spools of wire simply wound on itself, those wound in accordance with the method according to the invention can have a weight of wire multiplied by

  five, which increases the effective capacity

  ve annealing chambers over seventy five for

  percent and reduce wire losses to one percent only-

  is lying. In any case, the invention will be well understood from 1 '

  using the following description, with reference to the drawing

  schematic annexed, representing, by way of nonlimiting examples, several embodiments of this machine:: v.e;.> .; Fig. 1 is a front view of a winding machine

  the metal wire forming part of the seloc device

  vention, the protective cover having been removed for

  sort a mandrel while loading; IFige 2 is a front view in perspective of the, maohine of fig. 19 showing the wmdrin at the d @ bmt of the bobi ge, the protective cover being still raised;

  Figso 3 is moved -vae eL pe @ spectiveo to a more proman-

  of scale, of a detail of figo 2; G.) Fig. % is a view of Oet6 forte et seéteise de l apaze.t19 rmoitrant o yeo de glidage pour1 Ilaan (ee du fil eE allîque ci nandrin et les roeens de retemnGe por tendele e ifil ea cours! eoe eat9 P3g 5 is ne rGe on Svation parPielle9 metrîet the Means of displacement of our guiding men and the means doe or uenpour e iúier la du & Paeeont means of guiding along: andrien Fig0 6 is a view in Clovatioen and patielleem er asxial cut of a reel of metallic wire e role 3n the mandrel and by the apparatus of fig I to 5; Fie. 7 is my view in 6lGvotien and epar elbeme- one cuts axial zldie act bobeno of wire nEtalliîne eerub 6 on another Maueósin by the same pparPll MAeS with e 101 geres MOe & ificatiems de In chine l bob'n0er La M. achiae, .eP e ee ua an figures I à has a beTt. $, sbu lebuel es't, e5nt6 eo reOetaeion Ue arbor 2 fitted with auu aàadta ee P to à ets- re C1îi imate-l qcuement i un C n nk-un a2icteGwr 5 et une du teou, e! ac & e a lbsetmnem du b8tA 29 pou eanralnme eon j roteatioi% l PaPGPOb tE l'ieemiaise do, eeMs Ge dosC ta missi'e apPepropprre6 eUi no m t oe & pe ep & eoEt5s does ney ens do Otidage 7 peou acmenr d% fi. 2 tMellie pr nS This% thread already had! c on 5. (and at the beginning o 1 of pea tiono pécs du aemnPi. luei Se) and pert to move oe made along the MenasAimn aiAsi qee dos Fyens de emdcn e 9 pour

  reduce progPess: vei et le sue ddu e6plagement consres-

  laying out gLdSeGO 7 meyaemns from deunr estrémi-

  chuck tees. The apparatus is supplemented by means of

  retainer 10, it (fig. 4 only) to give tension

  sion to the wire wound on the mandrel 4 The shaft 2 can be rotated by the gearmotors 5, 6 when the mandrel 4 is in

  horizontal position (see figure 2), the adapter. 1 pre-

  feeling a lug 12 which engages in a notch 13 pre-

  view at one end 14 of the mandrel (cf. FIG. 6), which

  is in the form of a cylindrical tube fitted with a

  only plays 15 at its other end 16. The mandrel is loaded

  and discharged in vertical position (see fig. 1), It is pre-

  seen for this purpose a support 17 for the end 16 of the man-

  drin, support which is provided with a pin (not visible)

  dark in the tube and which is provided with a horizontal axis 18, of which it is integral in rotation. A lever arm 19 and a double-acting cylinder 20 facilitate pivoting

  of the support, and therefore of the mandrel, between the horizontal position-

  tale and vertical position and vice versa. An operating handwheel 21 (visible in FIG. 2 only) and a threaded rod (not visible) act through the support 18 to push the mandrel 4 so that its end 14 provided with a notch comes into contact with the adapter 3 mounted on the shaft 2. A grapple 22 suspended from the hook of a muffle 23 is engaged in holes 24 (cf. also FIG. 6)

  provided at the end 14 of the mandrel 4, for lifting or a-

  lower it, as needed, but more special-

  to raise and lower the wound coil 4Wi <fik.

6 only).

  Before lowering a protective cover 25 to make

  re act a ratchet 26 on a safety switch 27 and thus allow the starting of the geared motor group 5,

  6, the end of the wire 8 is passed through the guide means

  ge 7. These include an arm 28, which extends towards the

  high from a carriage 2 (fig. 5) through brushes-

  its protection (30) and which carries a pair of guide rods

  31 and a pivoting finger 2 provided with a wire guide ring

  33 at its free end (see fig. 3).

24? 6620

  We turn the maniu2 & by hand 'to enroalc a few turns of metal wire 3 and i block the end of the latter in the visible way the fiuMre 2o When the wire 8 is solidE3ont úfio a_ iI and that the cover 25 a ct ata: ss p @ si%, o do ravailO the ratchet 26 acts aileron.pm eo t7 eGt n can start the groese m, -eeoa5 6d do 2a = lesson to train in 'etation1 larbe 2 and tg-edin t: 'near which the ring is disturbed. uide-fl - o Lo eh siîot 9 o carrying the means of aid 7 oest d @ plac alenuve =

  ment in one direction and in 1 other ar unm SyGtwc de tran3s-

  wheeled and V belt drive (fie 5), li1ver-

  Zion of the remembrance being asstretched by aiae ji * at the end of race 35A, Zent6s pre this _ j5 of the trolley and which can be re in Gcntaot aerc eos ba tees respective 6A, _6B, mnetos cihacune cur linate propeller right and the part has elie a gaà e, o a threaded rod M, qyi $ zQtt e aallàcend t à e zlissiro, s Xur which QeGl OGG the C2IMo * 9. The tise 2 'thread6 turns even ineter eme in lf ti m de la tOeo S se de la treltie1 le 3.e 2 dn z-nadria9 do la5C C _CU re progressively la aG @ oe s cieariet aÈ% o @ î, e: trcats

of the mandrel.

  The retexâue means 2 @, pA f] p teureAo2ro 1-e wire 8 in the course of winding consist, on the one hand, in na capstan 40 provided with a guide wire arm 4. and eaLe bLrdsmese -, and, on the other share in a game of alets e. n quicance J,

  43B, and the tension can be zeg: tle Facileert oen óeao ..

  the degree of interference between the A2 bone and the udei arm

  wire 41 and / or by adjusting the interval between the rollers e-

  jacents 4A 3B_ The part of the apparatus intended for the birth of the wire also includes a crazy beam 44, driven

  by the friction of the wire passed around it, a dynamo ta-

  number 45 driven by pulley 44 and controlling the

  speed of rotation of the shaft 2 and of the mandrel 4, a cabes-

  tan 46 driven so that its peripheral speed is

  conforms to the wire thread speed 8, and a compensating

  voltage saturate 7, which absorbs fluctuating ligeres

  the speed of the thread and / or the thread tension.

  The gradual decrease in the trans-

  lation of the guide means 7 from the two ends of the mandrel 4 results in the formation of the coil

  4W shown in Figure 6, which has a central area

  C, whose external face of revolution is cylindrical, and two end zones El which each have a face of

tapered external revolution.

  When the central zone C reaches a diameter such that the wire which is being wound comes to touch

  a bar of "trigger 48 (figure 1), the moto- group

  reducer 5, 6 stops automatically and you can

  pull the coil 4W from the machine by lifting the protective cover t, by turning the handwheel in the opposite direction as before to release the notch 13 from the mandrel 4

  of lug 12 of adapter 3 of shaft 2, in action-

  the cylinder & double effect 20 to rotate the box

  hoe up, ready to be lifted by the grab 22

  of the muffle 23. The trigger bar 48 is also used for ar-

  remove the machine if the wire 8 breaks, the strand loose

  wire on the mandrel being thrown by centrifugal force

  age against the bar and causing a short circuit which

  cut off the power supply to the motor 5.

  The other embodiment 4 ′ of the mandrel, shown in FIG. 7, consists of a tube which has a cylindrical part 9, one of the ends of which forms one with the small base of a frustoconical part 50. The reel of

  wire 4W 'formed on this mandrel 4' can be obtained using

  reading the apparatus which has just been described with reference to

  Figures 1 to 5, with minor modifications to the machine.

  On the one hand, the support 17 must be provided with a suitable pin.

  propriée Has the frustoconical cavity of part 50 of the mandrel

  t4 'while, on the other hand, the threaded rod 38 must be

  be replaced by another, the two parts of which will be threaded in the same direction, the stops 36A and 3GB being r - '' -:

24? 6620

l1

  separated from each other by a slightly lesser distance

  lower than the length of the cylindrical part _9 of the nadrin 4 ', the translation of the guide means 7 being offset progressively (by a displacement iGla GLQ a and in the same sense of the goals 36A and 236 the iong of the tig Ci tée) of the part cy lindrique ve la Gpamde ase de ln paar tie tronconique and in this Oens ceuleenGu de tGe (ue the coil of fil aiîni obc.enme 4dîf has a sozme. cetrale ó which has a fQce of Oe-lute eterUe oyndlri e a sone d extiemte E whose face of revol% ion eo: erme e.mt encoiRi and 'me a2n te 20ne d ez & Iitm I 9ct ln "ace de révvoeltion e torz e eGot elidi9ne et prcleicge eat le e pare on'aleo Le nn r in preseene ne e2aco Che 12 et dem troue 2t. à0e i dto0 cylin dri que úa iuî eeot 6Lo + ga e d1e Par u hrooaine 50, for the reasons that qjui ols 0p t 6t i n6 more hmat au zenoeJ duisandrin e e. gre ce, aunI9 1 e

* - - 2476620

Claims (11)

- CLAIMS -   1.- Method of winding metal wire on a   mandrel, characterized in that it consists in fixing an ex-   end of the wire on the mandrel, to drive the latter in a   tation, To communicate to the wire a translational movement along the rotating mandrel at a speed such that the * worst adjacent formed during the same translation are spaced from each other, to control the tension   of the wire which is being wound up and to modify pro-   gressively the translation so that the mass of wire   wound in the coil obtained occupies three zones: a zo-   central (C), whose section is constant, and two   end zones (E; E, E ') whose cross section decreases   between a value equal to that of the section of the central zone and zero.   2.- Method according to claim 1, characterized   in that the mandrel used consists of a cylindrical tube   that and in that the gradual modification of the trans-   lation consists in gradually reducing its extent From the two ends of the mandrel, so that in the coil obtained the central zone has a cylindrical external face of revolution and each end zone   has a frustoconical external revolution face.   3.- Method according to claim 2, characterized   in that the rate of reduction in the extent of transla-   tion is the same from both ends of the mandrel.   4.- Method according to claim 1, characterized in that the mandrel used consists of a tube comprising a cylindrical part, one of the ends of which forms only one with the small base of a frustoconical part, in that the extent of the translation is slightly less than the length of the cylindrical part of the mandrel and in that the progressive modification of the translation consists in gradually shifting it from the cylindrical part towards the large base of the frustoconical part, so that in   the coil obtained one of the end zones (E) has a fac-   this of frustoconical external revolution and a face of revolu-   internal cylindrical tion, which follows the face of r6vo-   internal cylindrical lution of the. central area, and that He   other zone Ud'extremit6 (E $) has a face of revolution   dull frustoconical and one side deo evolution extornc $ ye lindrique0 which follows the úaco de v.lutiou extsoe cylindrical d2 the central sosa (C) o oProo'd6 s elon 1 ene cuelconque Cs rdeedoas tions 1 to caracteris n ce q le mandrin rotates an axis which is either horizontal, oSCt vertical, can be wire winding.   6.- Process according to 1 year q'ueloonque deo reveidica-   tions previous., characteristic in co that the rotation of the mandrel is commarnde so that the wire is azwoul at a linear speed and with a tension being 7.- Method according to claim 60 character in that the rotation and the tG esAon are rglableo independently of one another for the purpose of Rcuir a ane 1ra ge gazma with diameters de.filo 8- Pz; oif5dé according to lr1 neoonqes dae revoedicao tioes p-nod5 eSg oaraet & rio & eu ce% e the speed of translational movement so cuae ie pao dos spiCEoo   can be adjusted n function of the wire diameter.   9.- Apparatus for eroulor of the metal wire On a manldrîn, polur the implementation, of process saol1o the rae vendication, ea 'very to quil Conorte ea nati () V on which is mrontu in rotation a tree ( 2) mmni a a, adapter (,) ap2e to atro oe: and a ma r "(4; 4), of the motor means and $ ansmission (56) to drive the shaft in rotation, hubs - sde -aidage (7) to bring the wire to be wound prIa of the wire erou16 ser le   chuck and to make the wire execute a movement of   lation along the mandrel, retaining means (10,1) for tensioning the wire (8) which is being wound on   the mandrel, and control means for modifying tro-   the translation of the guide means 10. The device according to claim 9, characterized in that the shaft (2) can be rotated by the motor and transmission means (5,6) when the   mandrel (6) is in a horizontal position.   11.- Apparatus according to claim 10, character-   in that the shaft (2) has uncouplable support means (3) for one end of the mandrel and that it is provided for the other end of the mandrel   support means (17) able to pivot on a horizontal axis   zontal to allow the chuck to be brought into a position   erected for loading and unloading.   10. 12.- Apparatus according to claim 11, character-   in that the pivoting support means (17) are   associated with a lever arm (19) and a double-acting cylinder   fet (20) to facilitate pivoting of the mandrel between its   two positions, horizontal and vertical.   13.- Apparatus according to any one of the claims   tions 9 to 12, characterized in that the guide means (7) are mounted on a carriage (29) movable along a slide parallel to the shaft (2) in the position which it occupies when it is rotated by means   engines and transmission, and in that the means of com-   command to gradually modify the translation of the means   -guide (7) consist of a pair of switches   limit switches (35A, 35B) each mounted near an end   respective part of the carriage and able to come into contact eha-   cun with a respective stop (36A, 36B) mounted on a   threaded ge (38) which extends parallel to the slide of the carriage, this threaded rod being able to rotate on its   axis slowly and / or intermittently depending on the speed   wire feed size (8) or the speed of rotation of the mandrel or the translation speed, so as to gradually modify the translation at both ends of the mandrel.   14.- Apparatus according to claim 13, characterized in that the threaded rod (38) has two threads of different directions, one right propeller (37A) for one (36A) of the stops and the other propeller to left (37B) for the other stop (36B).   15.- Device according to any of the resellers   tions 9 to 14, characterized in that the retaining means   to give tension to the thread (8) consist of a ca-   bestan (40) with an arm uui.de-fil () and a bressc (42) and in a set of rollers (43AA3B) arranged era% i cme 16o-Bebnie de flUctuEbu'au ed aSlaie cylindrLq does a mini joule to ' me only e :: trGEmiît & caPract risee in that it esck czou! e sU ce. eIn in by the proce of Next lna reeend.i. cation 2 o0 the revidîat /; e 3o i1 Boebine de fil, l, mpoa'nanucIlerin has a tubular partic cylindin &. qu onit eutnnot did qm '% U. with the small bottom of a p ez ti @ e tZPeorique CecP .eeD in that the thread had enGeles, úue CeO de., pau ie of this mdnari confo-iI men u au peOC6diL selen the pe emîca tion e%. 18D Bszbine CIe fil celeo la pevemeioi1cto- i ce la redveietiei n7 eamae 6-s r6e, es ce oc e le fil es / t sGomme% à un annuite 1brillc nt