US2329328A - Provision of wire rips in canisters - Google Patents

Description

Sept. 14, 1943. P. BOGNER PROVISION oF WIRE-HIPS 1N CANISTERS Filed March '7, 1940 4 Sheets-Sheet l 4m@ NW. www

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Sept.l 14, 1-943.i P. BOGNER PROVISION WIREl-RIPS 'INv CANISTERS 4 sheets-sheet Filed March 7, i940 [Irl-Il Sept. 14, 1943. P. VOGNER PROVISION OF WIRE-RIPS IN CANISTERS I Filed March '7, 1940 4 Sheets-Sheet 3 `Sept.14,'1943: Y. P. BOGNER 2,329.328

PROVISION OF WIRE-HIPS IN lGANISTERS Filed Maman- '7, `1940 4 sheets-sheet 4 a normal seaming'processf f. y .n

y, .n provideaan im- Y proved end-.closurevwhich has taarip-vvire proi PeterBogn'er,London;England,`assignorto SamL `I 1 Hanson`& Son'glimted, London, England,'a

f vBritish company;

Ap'iiieatoii Marani, 1940, seriailNal 322,748y y 'f `Inn(treat,"rBritain Decernber 2K2, v1938 This application? corresponds, to ,the applica-I tion of Peter Bogner, rSerial vNo."3f'7fg1l5frf,/38, which Britain, January 31, 1939.r 'I'hisinventionlisv fori;E

and seria1 No. 3,3o2/39, Lwhich was filed moraa't In the presenti specicationj and claims the "i term oanister` is used generically to include] al1 sheet metalcontainers irrespective ofthe shape,v

yform or dimensions suchcontainers maylha.v'e`.U i f Another objectof theiinvention iS` t@ y'provide for the manufactureoffra` `can;end1-"ci`losur`e provided With a rip-wire whi l isjhe1d`s1ecurely ,in place by being clinched' yinv-fa.ridge or groove ovide a 'can 'len ridge orgroove in the`end,-,closlurel with the vvgails" of said ridgeor groove 4pressedtogether,,teindent the rip-wirelinto themjso astofsecurethe rip-wire in place' andvalso formja ylirieoi `vvilaakf y closure whichr hasra `rip:yvire secured to itand which can be readily Seamed A to jai; canfixxly-v yby A still further object;` is ytoy truding atene end tothe outsideyofithev end.. closure, yand which canfreadilyv rv have [-theggripwire clinched in placewithout 4-rislof splitting the material ofl the yen'd-closurain thekneighbourhood of the location :where the ,wire projects throughthe endLclosure. 'f

\The end-closure disclosedkhereign inl my copending application,k Seria1I\Io.,351l,619, yiiled August 6, 1.940. ,y y y E According to one, aspectof the invention there is vprovidedV the Irnethodgoi rsecuririg;"rip-.Wire inra .desired location on a canister ,forfvfthe like,

'which comprises the lstepjoflcausing the portion ofthe canisteraor `thevlike along ,Whichfthe` Wire .is yto be'y disposed toy be. engaged 4progressively along its length Vby a rpair ofaop'posedV grippers so` shaped: and ,disposedV as'ato` force the material of said portion" of the] canister ioritheflike "in't'o ,the Tform of t aL re-entrant channeljorysubstantially closedtube embracingthe `wire v.vs'fitl'iin it;Vv The with said groove discontinuedtovfdrm a gap, 'the v -Lwirelmay be'iirst inserted lthrough'Jan opening progressively .fromA oney end to the ,g

' finishing 'at a chosen point the nel :r tuba-serves tonnel@ `the rip-wirajin ,itsjra l quiredypos'ition'in such, a wayr l'presser 'member arranged to engagee l the wire.,

, yrip-Wire'maybe cotrolled'asaforesaid by'urigf `l yWallsofithegr'oove may subsequently be"'forced,y

y together by the grippers yprogressively,along'they tis inserted/ The Wire malybe fed fromthe out; i side ofthe closure inwards, -or`it"m`ay be 'ie'djtofr saidnportio'n of 'the canister orthel ikeon the,4 one 'hand and the; opposedgripperon#the` other handmare caused to 'niovejrelatkivelytom another `so thatzthe channel through av closed ,'circuit 'cornmencingfifr i thattliewire cana notibeome'accidentally displaced. ,'Ijhevvire, hay

be fed tothe said portion of the', canister jorfthef l a, like'rso, as topo-me into, engagementfwith the latter ilmmediatelydadvance;ifith,'srippersl 'f or' it' may `be already 'disposed/along thedelsimred i" lation' 0n Said; portion 0f,L the .aniseasorl the Iikebefore the jnaterial thereof is" clinchedjafronnd l Irly ,Carrying out the present IneitlgfldL the' P0512 tion 0f"thefrirr-vvilfsz,,rrlaybev t uolle'cibyfilrg:y ing dit rinto ja 'desired'r locatio!! the canister- Or the' like immediately in, advance 'di i111?!y grip.: persf'lhis 'may be perfrned by; mehSOf/.'

' the Wire'and urge it' into ythe 'desired ocatio i0k come into Aengagexllant Wihhe fd pri'f Of the., canister ,0r the like. immediately. intadt van@ of the, erippersa a'rldlnfthis ',CaSeihemtess-j 1 s er memberfrnay belforrnend. with a guidef'fwaylron i lThe method aecording to `the invention rnayf be j m'plovedor Securinghel ri-Wire.; in, a, Pref formed Agi'oovegin the said portionpfthe -canistery a orthe 1like`,'fa-nd in thisfcase theusaid f 'gripprs'are operated in such 'mannerffas'toclose or partiaily'close'the mouthof 'they'grot'iv,"tov i Clinch thevvire in place;"The position vof the Y,

"ingit to the bot'tomof` the groove'immediately" -in-'advanceof the grppers.k 4In' applyingthemethod yair'zording'to',thelifii- I vention yfor securing a4 ripwire"avitiiin-'agroov extending around anend-closureof a canister' at loneen'd'fof the groove'-atthegap, and thef groove-from the 'end 'thereof at *Which'they wire rial of th'efsaid portion ofthe canistror the like4`A` has been formed as aforesaid to embrace the wire Within it, the sidesv of the Wireembracing.': vchannel vor substantially closedttubeare pressed towards one another and agaiii'st'tli'e wire so asto force the Wire into the material :ofathe canisterior'the. like,

According to a further provision of the invention apparatus for securing a.ri] o ,vvirein-Y:adesired location on a' canister or tliejlike comprises two opposed grippers formed with co-operating clinching surfaces, with said grippers sovform'edd and so `rnountedthat`f a,y relative rolling A.movef Iiiant"liet'vveeingsaidv clincliir'ig` surfaces is permitted, nifeansrfor.. supporting@ iin-positioriV to` be. enf.

gagedlbetweenls'aidf opposed 'gri-ppe'rs r,aQplorticn of to..be.1ocatd,.andsmeansforrcausing a relative' advancementlbetween. said' vportion .ot ,thecaniater vor tli like` and A.the grippers, .with`,saidl'por.

.c nnoftne canister, or merke .disposedabetweenl tlieigippeifsLin sucli".manner that thek relative rolling, :notion betweenthe kcli'nching`,.surfaces Oitlie' gripperswill'fcause the` portinof the canister,.ortlie-lkto be urged toaifinmationto` embracetlie1"*ipgvvire.,` n The .grippers may be con-1 stitit'ed"by` rollers iliavigi circular. rimsloijf'rusto-conicalforni with4 edgesfatftl'ieirrlargest diam" eters'lwlich are directeditowardsl one another .so as to'.`v grip; portions ofthe niateri'alof thecanis t'r ontlielik'e wliiclilareon opposite sidsof the. rip-wire and urge` said'portic'n's together around 'Hielapparats may, compris'en additional pair of opposedjgrippers -forrned with .cor-operatl#` li'ri'BLpressing surfaces V arranged` to.,engage. with tl'ieV Wallsof tlie reeentrant'channelor, substan:

muy eised tube. formed; .mine ,canister ori. the 45 like, by means of 'the stfmentinedl grippers, means imou'nting `,s'aidT additionalcgrippers to permit'r a. relative rolling.l movement between tl'i'eir'jpressingsurfaces?andjlmeans..for advance i'n'g'.V rlativelyzt vone another said." portion nftl'ie,

canisterforqthe .like andl said. additional grppers withv tlfe'portion4 of.the canisterlor. the likefdisr posed between the additional grippers.. v

According `to .a fin-ther,y aspect .of the4 invention n there is prdviddfor a canister.anendclsure lia-vingalcentral depression tofit l.vvlitliinrth'e canbody.,andfarmarginatange iogrk interfoldingfwith can and i ha .ng z the `materiell of( the .closure.-betweenz saidfdepressionand fiange. con

jslrriieol outwardly froniwfsaidfdepressiom in the f ferm-:of arl-shoulder: arifdfI afridge'. extending. around said'shoulder, and having arfmriprfwirer contained in said ridge and thefwail of the ridges'clinched n together; tovgrlpcthe ripi'wiren"Theeendclosure fmafyfalso :Hayez-the `wail-is of the ridgepresse'd toe v dentedl-in towthefnmterial fofasaid-v wallsk" v`Afiirtlrierfprovision` et; the inventiomconsists in iannend-closure :for: al` canister whichiend-.clo-

`Vwire` and has an end-faceoff'. thefgroove; i aperituredp. -forfftneifpassage of: the rip-wire,- witlrl the `aperture vraisedv.agboveftnej unctionr of ther groove with ztliosefvportions oifthegmaterial offthea can- 35 the matenar offjthe'" ennplsure ;f x

ister which are displaced laterally of the groove.

Certain preferred ways of carrying out the invention will now be describedy with reference to the accompanying drawings which illustrate by Way of exampleone form of apparatus for secur- `ing a rip-wire in place on an end-closure'oii a canister, as well as rcertain modiiicati'ons and certain jfprefe'rrecl2':y formti'," endclosnnes.

InA the drawingsl Y Figure 1 'is a side elevation, partly in central 'y cross-section, showing one form of apparatus for c securing .aJipg-,wire `in place on an end-closure; Figure 2"isap`lan`view, partly in cross-section,

Figurex.islQa-cross-sectinal viewi'of certain Figure 4"`is an enlargedidetail View in crosssectionoi a portionof an end-closure as it appearsbefore the rp-Wireis applied toit; Figure 5L is. a'view corresponding to Figurev ij but.; illustrating the I clinching offthe material' .of the end-.closure around;the'.rip-,vvire;-v

Figure frisl a viewin..crossfsecnon tekenen the 1in@ 6;-6 0f Figures; l l n Figure 7 is `a1 viewjcorrespnding to Figure 6 illustrating the commencement; of. f a, combined i wire-inserting and A"clinchlng, operation v Figure; 8 isa Viewj correspondingto liigura,l

but;v having,the cross-Section'.A takenaina plane containing .the axes Lof the l'gripping^V rollers;

Figure 9 'is a" vieyvljcorrespondinggto:Figure8.

butf illustrates thepressing of the. 4rip-.wire into .Figure 11.0'11's a-fragmentaiview of .a .portion an en dlclsilreg` seen .from the underside, .with

D'Ortionfofa `wire-receiving groove `or ridge;`

r@Figure 8 fis'fasidei-'view in. .cross-section of the` passing thronghit;\and.fy y n Y Figurejll'; j "a side viewof a reduced portion endl o'fthergroovei orfridge. showingA a lrip-Wire oxf'a continuous,wireereceiving 'g groove or` ridge y Irrned'inanend losure. 1` Bike-inferencenumerals indicate like p'arts tl'ironghout th'eidrawingsl K The-l aDparatus'il-lstrlated in"` Figures 1 to 3 may constitute afcomplete rnachine for securing ripy Wires in place on canisterstorithelikeg or it may fr-rxr-part of f ay machine-which embodies, other apparatus for' performing differenti operations3 such as Wire-insertion or seamingv,,and,in 'which r lthe#canister' or fthe like.orjportionsthereof are Q lm {varmed-ffroniy station tostfationso that the diffV i frentperationamay irev performed' atY the dii-V ferent-'stationsc To zillus'tra-tetheffinvention the' appara-msiiss shown as l being yadapted 1 to secure anript-:Wirefin place .orr end-closu-reof a canis;

tei-:fthe end-closure being formedlfwiithv ahcentral depression'"surroisln'dedrf` by-a shoulder v10-(see I c Figure: l4) 'i andV a nwireg-receivlngr ridge Tl around the*shoulderzzasf.deseribedpinmy Patent 2,277,066. l c filik t AReferrinipnowto Figurexzltof; the apparatus n arts Vof the apparatus view, aside-view andv=` a` .plan view oftlieendn' justingfscrevv 5 0 screwed frame 2,0 isprovidedqto of the position of therollery n comprises? a Lstationar'yframe 2liI supporting. op'- psed' grippersln the form 'of rotatable "rollers 2| and 22 secured l-r`spect`ively 'ito driven shaftsv23 and 24;"A carriagel25 is'inovable'aln'g aguide; way. shown diagrammatically fat-126 beneath ilthe rol'le'r`s1'2 I :and -`22. Thcarriage 25 has bearings in which aslidable1r0d"21` is n'iounted'fandzaddi'-A tional bearings inv which there is slidablymunted itj'a fholder' 28"'wfor supporting! alcan end-'closure` indicatedA generally at 41."-` The'h'lder .'28 fhaszra contour"corresponding'to ythe underside'lof the depression in the,` 'end-,closure and isxarranged to 'gripathe lattervinf-any convenientfway, `for. eX-` amplegfinagneticallylorby suction'. The rod -2'I, .is urged: to an7inoperative'rpositioniby aspring 29. The presser .member 30 sistdisposed lso. as Itoflie The carriage 25isvarrangedto be moved along thegu1d e-way, 26v to .-:bringj the endeclosure "41 beneath theagripper roller'l 2|,- an abutment, pawl f The 'fuimtionfof megnpperroiiers 2| andjzz lis toen'gag'vvwith: the side Wallsf`13 of the-fridge 1|1/and'urge said side Walls'- together'around the rip-wire' Whichis indicated at 46; The material -of-the ridge 1I of'the'end-closure is thus .brought to fa v-re-fentrantchannel formation or "to, the form of a substantially closed 'tube vcontaining the rlp- Wire 46; The latter mayl=be inserted in the ridge 1I.befo re the"endclosuref41 isibrough't'into cooperation with the 'gripper rollers 2| and 22, or e thewire'may be inserted linto the ridgeJI simultaneously v,with ,the clinchingoperationf performed by the rollers 2|,.andfl22. *The apparatusshown inFiguresl to 13 is adapted'for `thelatter ,pro`' 'cedure l 'j "I'hetpresscr memberjSIlfasfshownin Figure. 3,.

is formed with a longitudinal passage 39 through Whichthe'rip-Wire maybe fedi.,y K'I'heimember 3 0 on other=devioebeing--shown diagrammatically at 31 ffor udetermining ethe; required positionv of the.

carriagejbeneath the gripper rollen When; the

carriage has reached f this position,-pushers 33 Iand i 34 rnoiuritedjin,-y ay-bracket l 3,5 are arranged to beoperated automatically-foret fhand by means of aneoperatingrrod 36togurge the rod 21 and presser Inerrlberf3.0 against" their Springs 29 and, y3| soasgcarry thevendfclosure r`41 into a position tocoperate with theggripperrollers 2 I v and 22 and someto `urgeqa toe H38 oxrtlre presser mem;-A f f ber soinmthe ridge 1| Y f f ywith slotsto.v receivefixing boltsr5 I, see Eigurel2,

.provided "f o :retaining the :bearing i481 `in place Iw'ith theA ,611er I2I infa'desired setting. ,f An,`adl intoA an extension Iof the l emmene@ adjustments .of the 'positionbf the beaihg' to beliide when the bolts 5I have b eenreleased The adjustment l enables,:uneap-k paratus .tor adjusted? tofl'suit jean-closures of el shaf|, 23-l lof` the/rollerl 2 I .f is mounted.v in. al bearing 4 8-`w hic h is K slidvable-v-in ther frame. 2 0 I towards and away fromthe shaft 24, for adjustmentpurposesy The bearing 4 8lcarries at its loWerer'id allange or 4transverse extension formed Aso different, sizesorto vary yune `e'xte'ntto which the material of j the lende-'closure isjjclinch'ed around f bearing 52 which is also' slidably'mounted the frame; 209 fbeing'A carried for example in a rectan-4 g'l'llaropening 5 3iin the framelg, Thsllmounting permits vthe roller/ 22 tobejmovedtoWards and .away from thejrolle ,2" .i0 grip and @lease the' material :of the end-closure las required, The l manually or automatically, and in the. drawings thereisshownffpr this purpose aca'm v54 secured to/theshaft 24 and ,engagingwith adamroller f esrqtatabie on a nxedfbea'ringhon lthe frame 2n; The` 'healing 52 ,.iS, Urged 'byga 'Springs 554.211,@ plunger' 5 1 inthe directionjto" intain thecam In order to eiect'relative'adv ,mentbetween tudiaiiy ofjh'e neige, r itheryfth cheer both of ftne' rp1 1ers' 2i and ,1z2 ,maybe caused torotate; vInliguresl "'and'2theshafts A2'3and 24 of the rollers v42| and 2 2` are shown'as being provided with gears ,and 59 flied t0 themarid immesh with one anothenjjand one of :the gearsqnarriely .the geary 5,8 fs also in mesh ivthr A* 'is' driven in any convenient way.' i

hasr an ,extension piece32 fat itsllower end in y Whichtis `frmedva ared opening 40 leading to the passage 39Ywhich after extending upwardly along' substantially'f?ftheI whole length( r'of the f member 3 0fcurvesov'eriso asgt'o' lopen tangentially e onto theQcurVed upper" surface yo'f` jthe v toe 38;: The flared openingv 40"'receive's ithe yrip-wire 46 from la delivery outlet vMigofr awwire-,guiding .jiube 4| fixed to the bracketf35.. Theflwire is taken y from Aa supplyxreel 44, .passesZbetWee/n vfeed rolls 42' and `is passed-'across a, cutter43 before'entering the lguid tube 4I.: "Additional feed-rollsA 42 are :provided near thel upper endbfa the guide tube -.4I .to engage andy advance the f wirefas rel quired. Y l l The frame 20 is extended to the iri'gl'itlasfviewed in Figure land carries' a' furthervsetjof shafts 23 and 24 mounted in-,bearings and 52 whichareadjustable inprecisely thesame way as those previously described,ftheshaft 24"'being also ar-` ranged to be moved towards? and away from'fth'e shaftf23byfaxcai 54.*1510n the: righthand shafts 23 'and 24r there are mountedf an' additional set oflgrippers or presser memberswhich "take the forniof rollers B3 and 464 whichmay have theirrims:slightly:taperedas"shown at r61, orv cyliri-k drical. -After the' end-'closure 41P'has` hadV its ridge clinched` aroun'dfthe wire by the? grippers 2|r and 22,. the. carriage 25 is 'arranged to bk released from 'fthe-locating 7de`vlc`e ;31 and moved to the right along the gudeway 26 to bringin. into (to-operation with@ ffrtherlocating, dev-ice Ii I. When thus moved t'he'carriag'e is in position to'enablethe end-closureVK 41 rt`o1be moved into COT-operation with the-presser ' rollers 63 and 64.

'A'pusherf member 6'2u slida;bly mountedin ythe .bracket 3.5 1is then operated ytom'o'vefther'od 21 againstitsssprng, and carry 'the' vholder 28'v and the". endeclosure 41 upwardly ft'obring the" ridge 1|''between thepresser,rolls 63 land 64,' 'The presser...m`ember 3|!v istat this'stage kept inoperative by its spring 3| so` as'"not'tojinterfere with y the pressing'operationv performed byfthe rollers 63and64, i' l In carrying outlthei'method laccordng'to the. y invention an .end-cl'osure'-f41isplaced/n' the; hclcler,y 2'8v fand the. carriage 'is fnioved tothe "right fr crn'fthefposition 'shown' inliFigure 1 into en? v withltvhee aanl inthe presser?v memberir which" is atn'thegfsame time raised lbyf thepusherr 34% is brought to; ai position with,b its toe,y 38; engaging withthe: inelinedi Walli |0,i: at;l the vendi of. the ridge liliF as` shown in full lines in;'Figure -7. In this nositiQnthet-oe 38:10h'thepresser-member is not fully inserted in the ridge( and: is permitted; to-

liefpartily out of the ridge byt compression offar` tinueda'and a sufficient length: cut` oil` to'occupy the lengthzof 'the ridge Tlf-and" leave a, short! end protruding from the undersidef'of: the-ridge; as indicated at 15; inFigurefl: t

'Iiieyclinching operation is nextucommenced by driving the gripperrollersell: and 22' through thefgears 58; 591 and |||,.these=ro11ers having-pre viouslyr been atrest. .nfl-'he rollen 24 engages;fric. tionallyy with the shoulder 'Hlfofy the `end-closure and the rollerf22eengages friction'a'llyWit-hA its marginal'r flange |21 which extends." outwardly from the ridge; |I `By; this frictional': engage.- ment the endrclosune, 47; is; caused to rotate l and is permitted to do so by the rod 21 :beingrot'atrably mounted'in.A the carriage; 25; "At, the same time ther cam l'commencesfto urge the. gripper roller 2-2` towards theivroller '2i|. The;v gripper-rollL ers, 2| and 212-: commenoe'fto grip the end: por?- toni ofy the ridge N` with; a` slight pressure; and their' pressure on*v thefridgeH is'y `gradually increased to. ay maximumjust after .the inclined Wall' |01? at the;` end1 of.' the -Lridgee has J moved'i past the nip betweentherollersiZfI-i and: 22. By( this time the relative: positions; off the presserfllffand ridge- 'Hf are: approximately" as indicated `byf the chain linef showing; of: the press'ei1 305, in Figure 7; The toe 3810i: the presserhas. by then r. ridden Y fullyyinto.- the` ridge `1|y andi` is; serving to" press the: Wire 46 against fthe@ bottom, `of the' ridge; I It will berappreciated-'that the pressermember 30 acts` onthe-Wire i immediately` in advance 'of the; grippers-M and1221fso as to hold'thewirelin the: desired location) just` before the sideY Walls T3; offv the'r ridge; 1 are; forced together'= to embraceit. Figure: rsliowsf azacrosssectionthrough the ridge 'l|-4 slightlyriniadvan'cet'of the nip bef tween the rollers ZI'and 2f2fand"il1i1strat`esihow the toe Mints-finto the ridge closely'andinsuchaway as to leave only a-suflicientspaceffor the Wirefalbove it. Figure fsliowsa-similan cross-` section at.v the nipfbetween the rollers 2|. and;l 22' and itwill be seenlfrom-thisigurehow'tlielatter serve to force the side Walls 73 of. the ridge-1| l' togetherto embrace the wire 46;',

`During5 the rotation- `V of the rollers 2| andf22 thefperipheriesrof;thelatter have arelative rollinglvmotion and the `side walls of? the ridge Hl are thereby gripped andv clinchedA together" around thaw-Tire progressively from one end-,of the ridge to the other, the severed n length 1 o-f wire being initially fedl at the,rv required; rate bythe-upper `feed rollers 42'and being afterwards drawninto place in the ridge bythe relative rotation between the endeclosure 4l-o andy the; presser member A30. The. rollingr4 motion of i the. .grippers V2|- and 22I is suoli; as to f avoid.. slippage between 1 with thev wire inserte'dand helde'in'fplace-in the Y 2532.*95328 y w l either gripperandy thefoorrespondlng .sideszwallil ot the `ridge 111 so Yas to; avoid tendencyrto rupture the: material 'of` thev endvclosiue.` Aftena complete rotation ofthe? rollersZI-fand 22 the wire yMil willzhavebeen secixreclrinI the'groove' along thewhole lengtlrof thelatterandi-the? rotation of? the rollers.v is arrested, the cam; 54 being so shaped that' thev rollers will gradually be sepa.-V rated the separation` conunencingjustibefoiefthe final endl o f the ridge: 1 Hs. reached; Thus: it `will her seen thatiboth'fat the beginningiandf-atthe transverse end walls; tov-)thev ridge, the.y pressure off the clinchingirollerss is` lessened orrreleased entirely` so` as to. avoid any tendency.l of? `splitting the material of theclosure at; the grooved'end; 1

As soon as the-gripperfrollers lilandlZZ' have been released the pushrodyy is released to enable theholderv 28:' toi-beV retraotedl by its spring 29;l The carriage 25l`stl1enrelelasedfiom the locating means 3Fandadvanoedfurtheralong the guide-way 26'. n The carriageA may inf 4some cases move to ya station' at` which-fthe end-closure ridge is removed 'frsubsequent sea'mingito a can-body when in that condition'jforthe 'clinchf' ing of the side walls Tiof the rldge- TI'around Vthe rip-wire '4s' is sumeient tencia; thfietter rfirmly in-place in the ridge; i Itf-isfprferred; f ever to perform a subsequent?operation-'oni the end-closure by moving; the carriage'A 25 intoV enf gagement with the locating mearnrl` andlgthen operating the pusher 62 which serves to 'raise 'the holder 281withoutraisingthe pressermember 30, to an extentv to'bringgthecentral partoitl'xe-V end fclosure against the" additionalv A'gripper o r presser roller A63' and the'marginal@ilarrg'fnfpf the end-closure against'thecorrespondingtnroller the gap between `the rollers'jl andfligthezposif tion ofr vvhichiwill;` coincide with" the gaplinthe l ridge. AThe shafts 23` '2`4f.o1'.itherollers 63. and 64= which were previously atrest; are now caused to.` turn with a relative. rollingy'movement vthrough a oomplete'xrotation." A1; tliebeginningiof 'their'` rotation the rollers. commence rotating the. endlclosure by frictionallyv engaging, the shoulder; ANl

and marginal 'ilange'l thereofi At thesametime thefrollers 611iy andA 6 '4fare lrgedtogetherqby the cam 54 and commence gripping theclnched ridge 1| A immediately., after the initialend ofthe yridge has passedthe rol1ers, andthe,r action ofi` the rollers servesto press the sic'le-vvalls '|3`1iu1ther together into the formation `.shown in crossfsec, K'

into Vthe 'material of `the-side walls: nvoefthe ridge and therebyform thin-vplacesf-as indicated atiu on the, outside and inside oflthe ridgef V`'Ilfiethin portionof theouter vvvall'loftheridgeman conveniently form a line ofweakening to facilitate opening the completed canister the use rip-wire 46';-

When the .pressing "off-thewallsl togetherfhas been effected along the. length ofthe ridge the rotation of therollers 63 and .61j isarrested and the pusher 62is releasedsoasto permitthe hold`- t l aeaeees l f er .28 to retract lthe .lend-closure 4.1 awayyv'from thel pressing apparatus ,undertthe ,wetin 0,? ,the

springv 29.," The carriage 25 .is tlienglxnovedalong-,

the'guide-Way 26 toga stationatwhch the'endf Closure ,411s removed-ferisubeequem .eeeminszte -5 a eazi-loody The end-closure'will thentake.' the form shown in Figure 13 andl theprdjectingrend 16 of the,I rip-Wire may', be formed to la loop`` as Shown at 812ml, anchoredby solder 10,2 Otherwise at 83 to the central partof the end-.closure During f the .Subsequentf seeming: the" end 1525501 the 1 rip-,wire which is left inside, the 'epdfelqeure `may be ,conveniently embedded; -inthe seamlto assist in.,ensurinspreperoper.t0n pf t openmethe can.

the `.ridge 4and. impressing, itevlgetherfee rotated ,manually :orbyfpewer means, @belle Palallel axes and serveitorretate ,theyend-leleellre 1 frietiona11y'.,-it;willbegappreiated that, e; large number, ,of,yar1ati9nsin theniquntinewd .drivying of l,the t rollersgmay be mede -6.3 and, B4, ;,y may be, revolved-around theaisefl ftheA end-V closure` so las. to traverse fthe yn ip between V,

ithe rollers ,along the fridge;y 1l ,from A,erich to .v en d thereof., Such prevolutionf; of. 3 the y rollers kas a wholemay causethem ,to rotategeach about `its `own axis due to theirictional'engagement yvith v ,the ,ridge or `rthe rollers may be. l ,driven so as to rotate about their. ownf axesy ,in addition toybeing .revolvedabout the axis of the ,endfclosure.., AJ- -ternatively one of th'e rollers may. beiheldgxsta- 'tionaryrz and the othernroller revoluediaroundizit ,against the first .roller `progressively Lalong the length ofv theridgeirfln a further .modification ',the l end-closure. itself.: .may- -be drivenV iso. to trotate about its own axis and, cause.the rollers --torotate ,by frictional engagement. withinthem. .Y #.'Itiwill ,furtherzbe .appreciatedqthat th'e laxes loi @the fi opposed y gripper ffrollers may if desired Abe inclined-Sto one another and onefrboth of thern, may be-inclined tothejaxisof the:-end-c1osure`, vThe formation of the rimsof the 4gripper-rollers @may jbe variedv as "desiredrr` to suit -the Y arrange- "merit-ofthe parts d 'theformationto weich' the yIn they construction' snowriinwFigures' lfandZ the felinching` rollers A; 27|)4 `and 2,2` are. formed with 'frustoeconical `lrinis"65 'with their portions?) which 'of greatestdiameter `directed vtowards one othergat the nip', betweenth'e rollers-seas to reducerany tendency to cutinto the materialof the ridge f1 l' during'v the clinching`v operation. With" the" rollers, .r'nountedony parallelj axes., the vrollerll' is' conuenientlynijade of'ja ysuiiticiently largeediamlterlto b ear'against the shoulder 1l) For grietanee* ereette @reverie retrieval f the ene-@loewe @iler clinchinef A t etA are, remeveblylmeunted 0x1. tbeir Shefteerlld 24 in order to permit themto be readiljre'rnof/ed l 15 and rollerspl gdiierentgd f iemetere te. be', Substi- Before -ile the epperetueehowe ,e riprwire may, be Carried eut fe,

the .urved surface,M f ,ltinuatipn ellithe hott l .fed 'in thezbodm 'Qt ,the ,P

modified* presser, :meneer .may als@ :beueed te f 35 cofoperatewith separat Wire-guidinsmeansto facilitateinsertien 011- til.

ineoperation; ucnfimertwri manuallyuorgbyiilowermeansi -f ine effected either indocatiorieto the;groove:118,.-l is formediiriih Dresser memberlS -fo The ",beforeand,l when l, moved byv the :,latter", towards f the clinching means l1asjth eupperv portionjof its 55 centrali depression; .l-,urgedrintog :fr tional-engagegment i with fai rotatable plate iid-secured `spindlewhich ,rotates inga bearing, 18

';:Spindle,85, ;xcarri`es a ,-beyel gear yil Whihxlsin by power means or, manually. i .The gripper Y roll- -fsecured to ajshaft 88;; which rotatesxyfreelyjin a 92 is. se-

tread-04 inesrtlegy hefwireir'izthe fidSell 'e f e @emiten-redeemed bythe# hefwire'mewbeainsertedim i* v well' :et a groove, 181mm-, er1: member; l,

v means for supporting said closure kwith saidv ridge in position to be engaged progressively by said surfaces, `means mounting said supporting means for movement into landtout of Working position relative to said rollers, Wire-feeding means associated With said supporting means'adapted to deN liver a wire into said ridge While said closure rests on said supporting means and movable into cooperative relation lwith the closureon the supporting means'when thelatteris in working `po y10 means into lsaid relation.

6. The apparatus defined layA `c1aim"5y characlterized by said feeding means including a presser i f member having a passage through which the wire; f n passes and a toe adaptedto enter saidridge and 1 ffm guide thewire thereinto as it emergesfromsaid passage. f l

*f PETER BOGNER.

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