DE2358158A1 - RADIAL EXTENSIBLE THORN BAR - Google Patents

Description

Radially expandable mandrel bar

The invention "refers Dora rods for supporting preferably cylindrical containers, in which one, the mandrel bars from the open Bebälterende of uses to the container by Anlag® to the Behälterinnenwandungen abzustützenο Solehe mandrel bar is required in machines for treating ₉ particular stm Badr & öksß of containers"

The object of the invention is to create a leashed mandrel rod which camouflages with a loose site inserted into a container
trier »

A ©

409823/0325

th core that one ntc? the open end can be pushed into a container and, together with the container, forms an essentially closed chamber, the tonnage of which is reduced when the mandrel bar is pushed in axially, a kind of pneumatics with which the air can be sucked out of the connector » an actuation precedence through the placement of a container on the mandrel rod axially from a rest position to a working position along the mandrel rod core, and expansion points arranged on the dorra rod core, which are moved radially outward by the movement of the actuating device in the direction of the working position, eo that by placing the container on the mandrel bar, with the misleading of the actuation precaution in the direction of work and the exhaust suction from the Kasmer as above, the dome tight and the container of the atmospheric spheres exert an axial thrust on the container and the actuation in the direction of its work exercises so there ß the expansion part "move radially close to the outside and flush with the inside of the BebKLters mos system konmsa" Before the bow, the core of the mandrel rod is old of a Blngflansob rer * which "see" when pushing the container onto the mandrel bar on the BebJHt "rlnneawanä old narrow Q-Ib it ei t »but

409823/0325

BATH ORIGINAL

System kcnimt, while the actuationBpreventing the beaiif iiniilagt on the DarnoiiBUge on set container on the container bottom and axially out of it? Rube ο division in Direction A-cbGitBBtelluiig rereobo "ben, if sau den Container picked up on <5 thorn bar

The mandrel rod according to the invention is particularly suitable

tm e are FXS ± Benrbelturjgeautomatetj auegebildeten to Bedruoken or eonetigam processing containers, in welahen carried the container of Uornatangeu and the series naoh duroh veraobiedenc BoarbcJ / inmireetationen hindiirohbewegt be "If i5olohe Beö3 beitungeautomaten? with common menhanieob elefctrißch operated or arrange just auodebttbaren radially * tändig the container control standing for the car feeder is monitored in front of them, in order to then shut down the machine in the event of an interruption of the feed or to put the preparation in operation, since the preparation of the feeder-free dome rods will ruin or block it. If, for example, in car wraps, pictures or inscriptions are printed on the outer surfaces of thin-walled containers, and a thorn-stick bag is attached, the ink is immediately placed on the bar, so that the interior of the subsequent work cycle

AQ 9 82 3/032 5 ^ _n ,.,

BAD ORiGiNAL

dee Boh & ltera ^ »rgohnmtsrt will, / Such g

rubs / gen alnu toner and increase erbeblioh «.te maintenance ** - cost ooXahar

For expandable! Uornstangen, the existing he * - was no-monsters over'iEc'nuti ^ eTrorifiohinAn gi ;, d; a the thorn rod ei ob niaht ouad ^^ üen canoe, wernx keir BehtLter from * der Domisiieiie * sits, w _a nt "now at" iaer eri'tisÄungoffanÄßfttt Uornrtenge the one "BiruokiiRischiiie mit Beh &lt.ern""nterluE-ocÄiett remains the Ioritetantfe in the nioht expandi ^ rfcen Zuetandf," o that the "eigp.utlJ.che DruolcvoxTlohtung the mandrel bar ni <At touch) on »

With a Ι) β twisted executionofon one; MEASURING the mandrel bar for the cylindrical object, which is the cathedral etangenlcern KylindrieoU euegeblldet and with a re ^ Lc ■ protruding PXeneoh at the inner end of the eylindriiobic nucleus sank. Pit actuation device then has a »outer end of the Dometangenkernes an annular lip, which dpa 3> ornetang & nende overlaps. Pie expansion parts can because several call the outer surface of the dome tang core

elaeti0che maneohetten and in the weeklio stiff β, which swisohen the elastic Haneobettan

A09823 / 0325

BATH ORIGINAL

b ^ d dm thorns 1; <? fcg9ökerii lie. A: 3 «> loho AminiXfhmg ± βί beaoaderar suitable i'iiar container au» thinr ^ m, ♦ '' • ■ eicib / itfn 3to £? * M like paper, heetik, steel or iVlumlr.iur., De the Uorimtange these Container oho · Wertovenxng aufapanneti can

In the event of a gusty voirte..lhaftö luebildung of the Brfinduag aie : Γ "ftxi" bl, iii Wa

'ii-, besides which the

e forehead flats

ic riuf xtiiaigeft ßfjhxaubeafedern radially after ^ germinate, if »to the breathiness of

nlT? gr- u «3d Kaiar.-jhatc.e73 cuiamiieadrUolrw, The ring-shaped aeon helical springs stand gate« u «» white ftue a «? e <3eretstal with little expenelonevideretÄnd ebex raised Quer-Yerforfcpn ^ ewidere-Utsd. Sine «olofa · training« r »5gliobt ο ine relatively large expansionxinf« Secr Sconurte & f ·, weea «ut the oeseantbeit roü riogfUriolgen tohrmubenfedere uad lirieobeorlugen naoawaendrUokt, without deJ an Äieiko of a beeobeet, weebt eigiuxgowern «The pressure remained

many jSinEelhei'seQ and Merkael® der Irfinfluag -.'- I from the following Beeohrelbuüyf imd the beige «·

4098 23/03 25. "BAD ORIGINAL

added Z'ioticurgeri in d ^ uan bow vsi ^ fee AuB.!. Uhrange € or ~ the fi-xfiniiuiig oeiopislawelne veraaechauLicrj-ij eißd> discussed below at JDcmetengeti are ao ödere for Behttitar-Druoinutomateti geaäd d «9T brit,

Patentecbri? {. 1 516 27t. In the Zoiohnuagen show ι

1 a iiäagsr.ohnitü dui-'oh a · geaäßc-. Doraatange,

<: a section through dl · Dor net an ge der? igo 1 custom -er oobnittXinle XI-II

3 a Läagveohnict duroh dan euadebnn & rnn style of Bor & e-Unge old a · * container <ao deeeen Innetraeindixiigea dl · Aoadehnung der Donsetange «ur Aiilif · lammn and

4 Consolidated Receipts of the Il »ti-5
and 6 eohen Meneohetten uad Ivieobearlnge for

Dornetangee gmJU ti «· 1 bU 3.

Like the lelehmcee «sk« aMB Um «·, Wettfat dl · Dornrteofe ame überm X «rm 10« iHM Xo * ·· 11 irehbej la a «« holder 12 stored irfc i «laÄ # e« eäe de »Ceniea i.e. at the τοπ holder 12 remote Enie,

A09823 / 0325

BAD OFUGiNAL

a l ^ t5iiigung3iT0rr3oat \ i.iig 15 Bte Hacteif _s ii5ß koines IO carries eiwe group of ^ «rna ojcs" isi0cnon ÄRTmafcettett 15, Me Steile Ti and 45

jJ'idc * ex ftcbßf · 11 let üin bevel gear v16 eiif ^ aetasst, mti; ß the jßömfiVütißn turned yeräcti

TJör ^: ^) Qi * nfitaEigf ^ irarn "consists of öitiem zylinariBChen: - :. 0. _S -. Öer. MaJ-tiiiß tnai '& neen vcn swei icreiai ^ CTiiifön auealnan-οιαί.ίν ^ οηβ fivjf decc Aobee 11 -jcrdn ^ ten 'it ^ GO ^^ n ? * «? Z BT-Gestü'tugt eats, D & a inner (e? - * 3G -> iat eitiea gröfle3? eo OuroliBiessor ale der Üll des kartei ε svxgrunfl. an 8 do3ft atig «ordernn ring *

οΙχ «Γ 25 Zur Bfit & tigui ^ BT ^ i ^ iicfctiiCK c 25. the fuf ö <9J5 outside? öec # laneofceß 2S

üeri! partly the Aohee "11 iet gelagfrt and aue a" fu axially ülaer'das Bnde the mantle yor ^ constricting aylindrlecheii way! 26 einemJPlanBobteil currently and an annular jt ^ ippe 2ß ,, the most Außenendia _{Λ β} <δ οβ Flaoeohtcilee ? "Ngebrecht iet and inwardly protruding the outer" of the jacket 20 libergreifeu kano, To the Sioheruög the Betätifruttgevörricht-Tiner serves a snap ring 29 _s ä *? ^ As "Äuöetjende öer Aobee 11 in.ν j.ne ring groove is inserted, the stisser Forehead-Hache dee F ^ tiBQhteilae 2T the

409823/0325. ..

BATH

lit is wedge-shaped and defines dea Bottom tinted up container »a circle of doors Hohlreua. You radially outwardly lying frontal fly dee flineobtellee 27 can be arbitrarily formed Min and Met • live the «profile of the container carrying the mandrel rod. adjust.

The axis 11 rests la Balter 12 rotatably in awei cone bearings 55.54 weigh the "" I a Abetmndsring 35 1> # - finds that la butter 12 old a Madene incense 36 let. Dl · swei Hofieren I * uring the bearings 55 and 34 bags at opposite stores dee spacer rings 55 «b. The inner race of the layer 34 does • loh on a ring shoulder 37 of the Aofaee 11 from · Stat Sum »» A nut 58 is used for the bearing, which is attached to the Adb ·· 11 is robbed and the inner race dee Bearing 33 acted upon. The AbBtandering 35 let old one * Fediftlbohrung 40 provided, which the connection iwehen an anchor 41 dee holder 12 and a ringkaaer 42 BviBohen the Afcestandering 35 and the Aohee 11 manufactures. Bio Ringkanuser 42 is old on your side of the Andes Poetry he Ingen 43 a bged lohtet, which of the Abetanderine; carries and on the axis 11 to the plant koanon. Sin issued existing · little play such as Abstandering and OebJluee

409823/0325

The sieve is served by stationary O-rings 44 Axis 11 includes an Axialbobrung 45, which over a Radialbobrung stent with the Ringkanoer 42 in connection.

The rigid rings 14 and the elastic sleeve © 15 are worn by the jacket 20 and are located at the top dea RingHaneob 23 and the ring-shaped © zippe 28 the actuation sYorri oh tu ng. The rigid rings and elastisohen Cuffs alternate so that each rigid ring goes through a cuff is separated toc an adjacent rigid ring · Vie fig. 2 seigt, every elasticity exists Cuff 15 made from a helical spring closed in a ring Know the iodine of a coil spring be connected by the fact that £ asu has a course The spring extends from lower durohms in the spring ends robbed.

The spreader rings and cuffs are like this on the mantle arranged, defl in the in fig. I depicted sucked in Position the cuffs under tension the jacket 20 and the end faces of the rigid SprelB » rings lie. The leftmost kansohette dor Pig. 1 touches the neighboring one. Front face of the RiBgflanaohes 23 »while the one that has the greatest vengeance

409823/032 5

Ringaeneo steps on the ring-shaped lip 28 sur appendix koaait. In this state, the actuating device 13 is removed from the snap ring 29. The besüglioh of fig. 1 On the left-hand side of the front face of each bucket ring stands eenkreobt your Aobse of the mandrel bar, while the Right face inks each Sprei ringee cone-shaped is formed and the adjacent cuff eo applied so that it forms a Raapenfläobe for dieet, with which the cuff can be expanded when there is an axial compression. Bit face of the Ringflansobee 23 ♦ which acts on the neighboring cuff, is also frustoconical in a corresponding manner formed, whereas the ringföralge lipids 28 had an end face that is perpendicular to the Domttangenachse tttht

Ia operation is aufgeeetet to Borne Tange a container 50 and it is the holder 12 connected to a Onterdruokquelle via the terminal 41 to the swlsohen container Ringflaneoh 23 "dumbbell 20, Planach 25 and the projecting there portion of the axis 11 defined Rlngraun 51 to evacuate. The air from this Rintfraimner is sucked off via the Axlalbobrung 45, the Ringkatoaier 42 and the line 40

. A09823 / 032 5

Indoor enduroheeaaer, the bigger let ale of the inlendurenaaaaer of the price rings 14 »ao daJ» an dan Babiltar laioht on dta Dornetange on et ta takers. Daa game "fieohenda * BabÜterOffnung ttnd dan Spreieringen with partly on the Dornetange on gaaetetam Babiltar lat an undlohtlgfcelteetelle of Kfcaa" * 51 "the jadoeb nlobt ao grei lat" because one can praise the container "praise duroh At" eephlrendruokange. The lively location was chosen that at MSmT BeaufeobXtgung the Betttlgunga-Torriobtung 13 dure ^ San BebHlterboden 55 surrounds the TebHter opening 52 dan Bia ^ flasaob 25. BIa opening dee Bebaltere rubt with m & m w ^^ tteitsamf the ring flaneoh ao aaß the imft entry in il @ hmmme 51 is obeyed and you can in the sanitary 51 aim bobaa y $ mm e ^ gaugin. The inSore lAiftdruok acting on the baby elder presses the BebKlter further onto the dome pole and pushes the actuation advance 15 along the dome thorn core. Bierbel is with Help 28 β of ringflSzmigen lip of BetätigungsTorrlobtang the benaobbarte Maneobette on its adjacent kegeletumpifSnoigan StirnflKobe dea adjacent Spreieringee outwardly versohobem _t until d le inner wall dee container ere "applied * In aöbneller sequence all Kfraachetttfit occupy the same position, AASS Bebälter the feet of the dome maintained Tange

409823/0325

BATH ORIGINAL

«Ad ίο is centered, ffwi · ·· dl · ti«. 3 «iff * · the BeebMlter will be released Mil »» «tall · · * on the

Jaeobluf 41 de · Halt «? ·« A «in · aruoklttftejuelle ta,« ο

de * entering Dtrucfclttft in dl · Kaute »51 den infested« again nxrttoltbeveceii ksnn, including the Sraok from des Ifcmeobettea ftjbe—. Darota dl · in the Menvobetrtm den · tpsniranc wezden the 1 · «Π · ν · η« the M

Spreleäfinf · and dl · Bet * tlfuai »? OJ« lolrteng In dl · ia # -

euxüol ^ eweffii · IeI fortceertater Hraok * mm iaeobluS 41 irtrd der B «faUt« r fen i · »Boaen-

The la wig. 1 Me 3 dmrgeetelte Bortuite & ff · expeedlert • ttoU Ia · ο yourelobeadeei NeSe ₉ deJ «en ele euoto for BehHter benntseu) nim _f at dme dl · BetoHte * 6ff» oae etwee MeIi lmiem einesoeett he bet6f *l · die. - BUB (I a * Κ1 · 1β · γ · β DuretaMMr «nHK · 1 · Am Innen. Ha eolober Bebllter let la Ilg · 3 geeelg-k · • rfladuagegeetAe Bornrtwag · feafti lif. 1 bi · 3 IiM nattelioh« adb for TollrtKadlc eylindrieebe BebUter use the s of their BebilterOfiBnag niotat neob inside.

Except for the goodwill of a happy, honest acceptance

409823/0325

quake cuffs Ion ton closed ledesringen AUOH Nooh the advantage dej no «a the wall of a · the mandrel surrounding the object can muster a large clamping force * without DAFL the risk of BesoheV> d FINISH the cuffs there · Use the lig · 1 bia 3 shown Kanaobetten- und Sseeiaringanordnttng * a mandrel bar was therefore particularly suitable mm AbatUtsen τοη aobveren Verkatttoken bit iflittdriaoben bores aur infnabae of the mandrel rod. Aaatelle of a pneumatics from additional pressure of radially expandable manao beds and spreader rings, however, a precautionary measure aaobaniay or hardrauliaohe pressure relief, with which a great Sueaaaendrllokkraft can be generated. Thus, in the case of the case, the actuation 13 of the Domatange of the lig 1 could be broken with a connecting rod, which is axially drilled through a central hole in the Aehae 11.

The in eieb geeohloaenen 8ehraubenfederringe 15 der ^ metange der fig. 1 bia 3 leaeen aioh auoh duroh rings made of rubber or synthetic material, in which case the price rings 14 can then also be erased through binge 55, the sins of which are arranged around Dornatangenaohae aind _v as ee the fig. 4 and 5 aeIgen · At

40982 3/0325

the luführungungeiorja geMll Vig. 4 aim elastisobe * RlBf · 56 have a circular shape, coming up with II «. 9 RIB «· 57 a with half-tapered cross-section selected • ind. B «l dt & Aasftihnmgsformen geaia fif * 4 UBd 5 debnen slob dl · Ring · 56 and 57 in radial Riohtun« «as, MB di · awledbmrlBg · Ib uclaler Rlebtuag ·· iu-» «it ·· Ib dl« MB HgaMB dvröh di · Ρί · 11 · 1st. Chnte tig «6 berUbt« uoh dl · Possible, di · · 1 · β * 1β <Α · η Ring · * iBt »Ulg alt Am 5Θ

BlB iMMBtllohM WwrtOMil d «r lsflBdag lies in d« B der B «htlt * r alt der Dorniteng ·« mimnrb ^ ift tad alt di «» «r · 1β · la weeentliohen g ·· ^! ···« · Xaaa · «Forms» whose volume is reduced when a «n the Beb Miter« Bg de · Deröetangenkerne · exUl rereehieb, because • Ine Ibdiohtung swiMh «B the Beb« lt «r« ad the SernetaBge gates are ani »velohe · ! & · Axial movement d ·· B · - hClt «v ·« nlong the Deomvtaag »eraOgliobt. Aartatt old dea ICRC Doraeteng · dl · d Zumamad ·· B "hilter · ia beeufeohlaeeo" like soap ·· the IeIdIBOBgMi could dl · mandrel AUOH a DlohtBBgemittsdBUBg contract "" Velch · dl · intenwand a container loaded, v * ^Äuf this Also use a sealed casserole with a white container

4098 2 3/0325

- 13 -

and Sornetange sn form · Sine welt ·? · aewadelte J & a * fttbrungeforA used as · Sobtung · 1η <Μΐ With I «d« efeMft lueaBtngedxUelcteB Kr «gen ₉ der Vereobiebliob Mf d« Demet «ng * nk * rn stored let« the den upper land of the Bebilters over the branched Itefeng beavf «, wXbread aan the container along the Dornetang · r« reobi «bt.

409823/0325

Claims (1)

Patent applications 1 · j Badtal expandable forn rod * ur payment of eu. processing, for example en bedruokeadan beober-like containers, "* fcenn *" iohnet through a rotatably mounted core "which is pushed into the interior of the container · (50) came toad sueamaen old the guardian (50) forms a weeentliohen geeobleeeene ttunr (51) »Whose Toluaen eloh bein axial iaxt» ohleben dee container «on dl · Doxuatasg · reduced« a pneumatic ■ atics (41 »45) Bm Ablaugen dir loft aue der Xaaaer (51)> a Betätlgnagarorriehtang (15)» the ten apes The container (50) carried by the long length is raised in the axial direction along the core (10) of the surface and parts (H, 15) mounted on the core (10), which threaten the movement of the actuated infiTotriohtnng in its working position moves radially close to the outside are »bo that a container (5O) ₉ placed on the dome rod during operation is connected to the actuation« roxv rlehtang (13) eur system »bela the air is sucked out of the hemmer (51) by the Pnettaatik (41» 4 £ ») threateningly the Atmeephlrendruek axially opposite the Bornetange Tersohoben and the actuating device 409 82 3/0325 (13) axUl in a work position Tersohiabt, in dar dia Auadefanungateile (14,15) aiob MdUl after auB # n "move with the container at aeinar ftet bteaf atiilee · !! and s «atric7tfi · ά · τ DoametsngtiskiiSfö (10) «it tinrn (23) Tareahan is _f del? alt »age» ttUitslts «ad« v OffHiaBg des τ © «$ ts? I ^ roetaBf · eatcttgan «! Keep? (50) to the system kooatj and that dar Bodan (53) da BahKltara (50) placed on the mandrel bar dia BatttlguagavoiTiehuni builds sole and axial of the rest position in the working position rerao, when the container (50) opposite the Dornstanga after is sucked inside * 3 · Dornetange near lasproob 2 »dadoroh gekennsaioh & at, that Dar Biagflanaoh (23) the Dometangenkemee sav FUhTtHIg the container opening with an ateo engraving is. 4 »Thorn tong according to claims 1 to 3, sub-outlets of Bylindrisohen containers, characterized in that the Dornatang anchor (10) is formed into a cylindrical shape 409823/0 32 5 über «eiset radial Torragendeo lingflatieefa (19) mi MiBM inner feathery *, where dl · Auedehnuttfetelle aindevteiie «α · an elartieoben« of da * Seraatange · - (10) stored Mtntebett «(19) miMtMB dot eli (29) i »dd» B «tt * l« \ ^^ © meliteuic (19)% «« t «lit _t eo tea ImI · 1η · τ uclalim • vlsefaoQ RlngfliMOb (29) tad
(19) the «l« eti * eb · lUniioh «tt · (15) becomes · - · 5. DororUng · minor Ixiepruoh 1 bl · 4 »d» durob f * kiou «* Iohn * t, das di Bo-Wltieunee ^ orrlohtune (19) ait one riiiffuZKigen iipp · (28) T «re« h «n let * di · da» Aa0 «n« ttd · d ·· Domit «ng« nk »nie · (10) ttb« r-er «i £ t and an d * r elarfciechtn Menechett · (19) «ur 6 * thorn bar naob Anepruoh 1 to 5 »deduroh gekennee praised, for this purpose several eleetieobe for the floodplain parts Maneo beds (15), which the Mentelflttobe dee Bornetangekernes (10) touch, and le essentially rigid spacer rings (U) born on the Dornetengenkern (10) axial verechiebliob swisoben each Saar from elaetieeben Maneo beds (15) Hegen. 409823/0325 * 19th 2 3S 8158 7. Mandrel bar after Anspruob 1 ble 6, daduroh eekennselobnet, that the Durobiieseer of the Ringflansohes (25) dee Dornstangenkeraes (10) grttder lit ale of the Aaiendurohmesser the expanding ring (14). 8. Mandrel bar according to claim 1 to T, characterized in that at least one of the expanding rings (H) isiÄietetuÄpffuraige Stirafläofc ** isiÄiet next to an elastisonen Nattsohette (15), which safen the elasticized üBneobette (15) Is redieler Mobtung twoh beaufseblagsn tama * gö im & die elastisenen lünsoiietten (15) on d @ ® fesg ^ lpte ^ fi ^ siigen Stlxnfllehefc der . . SpreiBring «CU; is ^ MmfsE "^ iI ^ sidlal exp *» dieren _f venn aan the QiseMtneit wm ü ^ i ^ iitten (15) and epeeisringen (14) svisohen the Hingflenson (25) of the SornetangeniEernes (10) infl the operation disturbance direction (13) concern · 9c mandrel bar after Anepruch 1 to 8, characterized gekennseleb- "net t that the Ringflansoh (25) of Dornstantenicernes is at an elastic cuff (15) beneonbarten side with a kegeletumpfförmigen StirnflÄehe τβτ-see old the one hand, centered the container on the mandrel bar, and on the other hand the elastic 409823/0325. 6 ORIGINAL Cuff is expanded radially. 10. Dornet narrow according to claim 1 to 9, characterized in that that the elastic cuffs joined together to form a ring Sohraubenfedern (15) «Ind. 11 mandrel according to claim 10, characterized in that that for connecting the ends of a helical spring joined together to form a ring, another Helical spring is used, which has a smaller diameter and is screwed into the ends of the larger spring is. 12. mandrel bar according to claim 1 to 9, characterized in that that the elastic cuffs are made of Quani or similar elastomeric material, the cylindrical outer surface of the rod core (10) act upon and between end faces of substantially perpendicular to the mandrel bar axis rigid intermediate rings. 13 · mandrel bar according to claim 1 to 12, characterized in that that the mandrel rod core has a cylinder jacket (20) aligned coaxially to the axis (11) 409823/0325 that the axially displaceable on the outer end <3 axis (11) is stored and from a stop at the outer end the axis (11) limited iato in its movement 14 · Mandrel bar according to claim 1 to IS _9, characterized in that the axis of the mandrel rod core is rotatably mounted in the bearings (33, 34) of a holder (12) and that via a rotatable suction connection and an axial bore of the Born rod at the outer end of the mandrel rod axis, air can be sucked off. . 15. mandrel bar according to claim 1 to H, characterized by a pressure medium on over device, pit of the Pneumatics and via this the between container and Bornstange trained Sammer pressure medium executed «Can ground to the container (50) from the Bornstange throw off, 16. Mandrel bar according to claim 1 to 15, characterized in that the radially expandable cuffs and the intermediate rings compressing them axially are designed as one-piece components (58) (£ ig * G) ₉ 409823/0325 Fig. 4Z \\ 4-1 44 44 \ 1 / ^ 40 / £ • I 14 15 14 20 38 ⁰ 33 43 36 3543 34 Fig. 2 20 14 15 25 26 5S ₂ 5 6 _f 55 _{ 56 _r 55 ΓIG 4 - ~ 15X ^ F ^ ¥ gl ^^. 20th FlG: 5 55 57 55 57 55 Fig. 6 58 ■ 20 409823/0325 20