US1749279A - Can-making machine - Google Patents

Description

March 4, 1930. s. o. FROSTAD ET AL 1,749,279

CAN MAKING MACHI NE Filed April 6, 1928 8 Sheets-Sheet l INVENTOR (1W 0.5mm l JM Bufi an, 5%,m PM

Mar '1930. G. o. FROSTAD ET AL 1,749,279

CAN MAKING MACHINE Filed April 6, 1928 8 Sheets-Sheet 2 INVENTOR c O March 4, 1-930. G. o. FROSTAD ET AL ,2

CAN MAKING MACHINE Filed April 6, 1928 8 Sheets-Sheet 5 INVENTOR G O- March 1930. G. o. FROSTAD ET AL 9,

CAN MAKING MACHINE Filed April 1928 8 Sheets-Sheet 4 B 2 8 is .INVENTOR 0 Ga. 0. PM

March 4, 1 G. o. FROSTAD ET AL 1,749,279

CAN MAKING MACHINE Filed April 6, 1928 8 Sheets-Sheet 5 I l l l l -l Marbh 4, 1930- o. FROSTAD ET AL 1,749,279

CAN MAKING MACHINE Filed April 6, 192a 8 Sheets-Sheet 6 INVENTOR GM- 0.5

A tr m ma March 1930. G. o. FROSTAD ET AL 1,749,279

CAN MAKING MACHINE Filed April 6, 1928 8 Sheets-Sheet 7 INVENTOR Q 0. PM

Patented Mar. 4,

PATENTQ OFFICE RATION OF WISCONSIN j "GEORGE o; rnosrnnnnn :rAmEs E. ANNEN, or MILWAUKEE, wrsoolvsnv, ASSIGNORS o THE NATIONAL PAPER can. COMPANY, or MILWAUKEE, wIsooNsIN, A CORPO- CAN-MAKING ACHINE J Application filed. r m 6,

This, invention relates tocan making ma- 'chines',j and particularly to machines for,

forming-cans by'inserting a flanged'cap'in ajpreformed canbo dy and forming a closure joint. However, certain features of the in 'ventionhave other applications. The in- V 've'ntion'is herein described as particularly applied to the manufacture of. cans from paper. "Most of the paper can machine's heretofore employed haveibeen open-to numerous ob; je'ctions. They have'been relatively-slow in "operation and have; been short-lived. They Their slowness'in operation. has'beendue to flanged cap. Other: difficulties have been enfor locating the can the working heads.

countered,dueto the lack of proper'means bodies-with respect to WVe provide a; machine wherein the. can

7' "body I is mounted on a mandrel or mandrels,

, fandmoved in an orbital path. preferably a nonbircularjpathlying ina vertically extending'plane; A very'fdesirable construction comprises a supporting table and a flexible means, such as a chain, extend1ng above and belowthe table and around the'ends. .The mandrels are 'carried*bythisflexible member and therefore. travel along the top of the, table, around the ends thereof, and a j ,therebeneath. The flexible member is moved i I ,isfmade for feeding can bodies to *amandrel as it lies atthe end o'f'the table, and

forward in a step by step manner. Provision means is providedat the other end for ejecti ing thejfinis'hedcans; yThe'stepsof 'insertingthe cap forming. the closure joint and then "reshaping the joint are carried out at suc- "cessiveheads arranged alongthe-table; The

table itself supports the mandrel" bases so that a rigid support isinsured. v

- The table" is provided with locatingmean so as to insure proper positioning of the mandrels atfthe variousstations; This locate ing means is separate from the means for Q advancing the mandrels along the table. The {)0 advancing; means is, as above stated, effective 1928. Serial No. 267,878.

from the heads' so as to accommodate different sized cans. In addition to this, the.

mandrels themselves are grooved and arranged to accommodate stop rings so that mandrels of one size may be used for cans of thesame diameter, but of a different height.

This is. particularly'useful for making can covers. 7 I r The vertical adjustment of the table is effect ed bya single-operation. Preferably jack screws are employed for raising or lowering the table and these jack screws may be employed as tie rods for-the machine. The feed means is adjustable with the table and is operated therefrom. The feed means preferably comprises a'trough adapted to receive can bodies fed from the side, and a reciprocable bobbin or pusher for-feeding the can bodies to the mandrels. A shaper motion is preferably employed for operating the bobbin, the shaper crank and disk being mounted on the table; The shaft of. the diskis connected to a drive shaft which extends in the direction of adjustment of the table, and slidable means is employed so that adjustments may be made without disturbing the driving 1 connection or getting it out of'time.

We provide cap feeding means, including a forming die adapted'to form a flange on a flat disk of paper, and a plunger cooperating with this die so as to force the disk therethrough, and upon continued movement to insert the cap in a can body on a mandrel. The cap forming'and inserting mechanism may be employed in connection with a feed device for supplying pre-cut disks, but we also rovide for supplying strip 'material, and f er cutting the blanks from this strip. A shear is providedfor cutting up the scrap so that it may bev readily disposed of. We

also provide a stripper for insuring that the cap will not be pulled out of the container body upon return stroke of the plunger.

Our co-pending application, Serial No. 267,879 filed April 6, 1928, describes and claims apreferred form of feeding mechanism for supplying precut disks. This mechanism is particularly desirable for can cov-' ers and the like, where printed matter is to be placed on the cap. 7 1

It sometimes happens that a completed can is not"ejected,.and we provide safety means which will stop the machine before themandrel carrying the can starts on another cycle of operation. Inadditionto this we provide further safety means in the form ofyieldable We also providean improvedoperating mechan1smfor the various heads whereby lost motion, wear and nolse are eliminated or. reduced.

I Inthe accompanying drawings jWhich-il- ,lustrate-the present preferred embodiment of our invention, s s -.T Figure V1 is a frontelevation of the machine, Figure 2 is an end view thereof,

Figure 3 is a top. plan-view-toenlarged scale showing a portion of the feeding'mechanism, 4

Figure 4 1s a transverse vertical isection taken on the line IV,'f-IV ofiFigure 3,

Figure 5.is a vertical section through the table illustrating the mandrels, drivelchain,

- taken .onthe line. VI- VI ofFigure 5,

scan ejector, mandrellocating means and closure stations, V

Figure 5 is a part-lalsection on-a line parallel to that of Figure 5but laterally-displaced I the can feeding-end of therefrom and shows Figure 6 IS a transverse vertical section Figure is .a vertical transverse :section taken on the line vll vll or Figure 5, and

,' illustrating the drive'means for-the chain,

Figure 8. is a View, looking in the direction of the'arrows VIIIVHI of Figure7,,,

mounted for vertical; adjustment.

Figure "9isiavertical'section through the 5} V v I See particularly Figures '1 to 4 inclusive. i

I The trough is boltedtoa bracket '21,. Y 7 .This bracket is provided with belt holes 22 ,at diiferent points along its length so] that a the position'of the troughlY maybe changed R for diiferent sizedcans. fThebracket 21 is supported. atl-the end adjacent the 'niachine by the shaft13i of the foot sprockets '13.

cap formingand inserting head,

Figure 10 isa side vlewillustratingithe 7 [feed mechanism for the strip from wh ch the caps are formed Figure .11 1s a diagrammatic View showing the driving connections, r. Figure 12 is a vlew llustrating rthesafety device, and

, Figure 13 is a vertical sectiontaken' on the line XIIIVXIII of Figure 1; v

o I Figures 1 and 2 illustrate the. machine as a whole. :It comprises a base 2. havinga stand ard 3 mountedthereon. The fistandard-is providedwith ways/l on which a table 5 is The :adjustment of the table is effected by jack screws 6 which 'extendto the topof the machine and are. provided with heads lying can st icks on.thejmandrel. 7

-over'forks '8 on the standard. jack screw is provided with, a worm wheel 9 e11 gaging a worm 10 on a horizontal shaft 11 ar-.

ranged to be rotated by a hand crank (not 7 shown). Rotation of the shaft 11. effective for rotating the screws 6 andmoving. the table up or down. 1 o

The table is provided with head sprockets:

12 and foot sprockets l3, andchainslt exf tend around these "sprockets; The Q chains f f carrybase blocks -15 on -which are mounted mandrels 16 for accommodating the can bodies. Thechains are moved in a step by step manner so that between feeding opera ,tionsvmandrels willilie, in the positions of Figure 1. ,In Eigureil a ma'ndrelI'lG is shown V o i Y indottedlines readyi to receive a can body. Can bodies are fed from trough 1 7by a.

pusher or bobbin 18. The cansare fed side- ,wise to thetrough 17 from'a chute C (Figure 2). The Jbobbin is reciprocated by affeed' mechanism,indicated Lgenerallyjby the referenc'e character 19, mounted on'the'table 5. f

After a can body has been fed to a-maridrel, v

thechain is moved forwardjonestep, This brings it to' the .p-ositiOli 16 of'Figureiliimmediately below a cap feeding statiOn, indi-' 1 sa ed ge l y by E g e A this station paper is fed forward; from a w re, I 95, 1 and forced into the open endiofthecan body.

(lTigureQ), a disk is out, therefrom, flanged 1 After the flanged .cap. has been insertedi in the can body, -t he.mandrel'is moved forward 5 tofa station J whereja closure jointfisformed 1 At. the next step in the operation the mandrelioo I .is carried to a station "Swherethe jointis' shaped. The can isnowcompletedflnd when its mandrelreaches the position 16?o fFigure V I 1, it is ejected bycompressed air-f I f .The ,idle mandrels return to the feeding i 5 .stationalongthe under side'of the table, passing the safety device indicated generally by i the reference character. 20; This device .is

effective forstopping thefmachine in casefa i Atits outer-endit is .carried by an upstanding jack'screw 23 and a supportingibracketf23 The jack screw 23 makes Zawormgear con- This insures that the feed mechanism willibe moved up and down with the table 5. llLo'cli --nuts 24L are provided on thejack screw 23 as 1 nection at the bottom with. the'fl's'haft 11....

well as on thejack screw 6 tolOckthe feed i 225 nadegofaluminum, v e in ,Theftrough .171 has a, front 1 theboclywwill beguidedthereon, $40. Injorder, to insure; that the mandrelat16 the blocks 15. j :uFigares 2 and 6show the driving {connecat 25 to accommodate a 'slide' member 26 on which the bobbin 18-is mounted. Thefbobibin i l8"is -se'curedto' the slide: 26 bya screw 27. The slide 26is :providedwitha pini28 Theclainp member is bored to receive acrank rod 30 anda clampgscrew 31 is provided so as totightenthe clamp member 29: in any p desired position; along the rod 30.. The'rod 1o'30'is connected through a spring barrel 32t0 Mandy suppojqtmg a feedimeans a'pin 33 carried in"a slot 3& on an-arm 35.

j "The'arm '35 is pivotally mounted on the 1 table 5 as indicatedat 36,.andis provided with a slott37 engaging a crank p'in38 on thec'rank 5;.{15 disk 38% :1 The crank disk 38 is. carried by ya shaft 39 journaled in the table ,5. This provides a quiokreturn mechanismbywhich the bobbin'is alternately moved toward and away from the. mandrel in the position 16*.

" 31,20 The spring. barrel .32 provides a yielding iconn'ect-ionlinthedrive so, asto eliminate shocks. It ls'desirable that lnertiaiforcesgn '7 f thispmeclianism be reduced to a minimum,

, and for this reasonthe bobbin ispreferably I plate ifl having an. opening ll therethroughp .This opening N gist rs with the mandrel, 16 and thefshuttle I ;is;eifeictive forlfeeding can bodiesjB, there .3 thiough. Thc' bobbin 18 is providedwith a V --.ch,ainfere d pad a2 on its Working;face. This pa dgis adapted 'toQenter thev fl w h l y fl I assist in centeringit. -;Tlie edge of the can f bodyis engaged bya buttress 43 onthe Worki3 ing fa ce'of the bobbin. The frontendl of w-the'ic an body is guidedbya tapered portion :44 in the opening 41 and each mandrel 16' is cha'mfered indicated at l5fto insure that 7 .shall lie in proper'aligninentswith thebobbin -118, {spring p're ssed pins 46, are provided.

V These pins are bestshown in Figure 5%.f As

{will be seen from that-ffigure, thenpins 46 ag 5-press outwardly against the base jof, the

' ;-mandreland tend ;.to. nain tain ityin truly .1 yerticalposition between movements of. the

. fichiain's and .mandrels. This resultsfinhold- .ing the mandrel 16?; in truly horizontal 31150, position so as to be in correct alignmentwith the bobbin 18. 1.

- .Aspreviouslystated,Figure 5 is asection on1 alinefldisplaced fromthe center line on I i're'spect' to the vertical axes of the mandrels, "is p ovided to insure proper positioning of V f,-tion for the shaft 39. The shaft .39 extends through the table 5 and at its rear end carries mitregear47 meshing with a corresponding tewr'nitre gear 148.. The mitre 48 is :journaldgin ing of the drive.

a bracket secured to the table 5. The mitre gear 48 n1akes aspline connection With a .The'spl-ine connection comprises a key 50*,

slidable with the mitre gear 48 and engaging a. keyay in the shaft 50, as shown inFigure 6.;

w SeeFigures 1 and 5 to 8 inclusive.

.The head sprockets-l2 are carried on a I shaft 51. Thisfshaft is provided with a keyedqsleeve' ,52 on which is rotatably mounted a'gear wheel 53. Y The gear Wheel 53 carries clutch teeth 54 in one side face,

these teeth being adapted to engage'correspending teeth 55 in a clutch member 55 Wh1ch isslidable along the collar 52, but is preventedfrom rotating relative thereto by a key 56. A compression spring 57 urges the clutch member 55, against the teeth 54. The

clutch teeth are inclinedon one face so that the partsmake a ratchet connection, effective Y fordriving the shaft 51in one direction, but

permitting the teeth 5 l to click over the teeth of the clutch member 55 when the gear v53 is rotated in the reverse direction.

v)The' gear 53:,is rotated first in one direction and. then in-fano'ther by a rack bar 58.

block-60(Figi1re 1,) and'a second arm 61 extends upwardly from this block.

The arm 61,.at its upper end, is carried by a crank pin 62 on a gear 63. Rotation of the. gear 63is efiective forreciprocating the rack and causing the step by step feed movement. -Tl1e clamping block 60 is proivlded soaas to shorten or lengthen the connection" between; the crank pin 62 and the rackbar :58,"thus permitting adjustment of the table and also providing for suitable tim- One of, the sprockets 12 carries a brake this drum. One end of the band is fixed on a bracket 66-secured to, the table 5 (Figure 8,) .1 The other end is carried by an adjusting .bolt67 secured to afbrake operating lever 68L' .,One arm of the-brake'operating lever 68 .is' provided With a roller 69engaging a {cam '70. :The 'cam' 70 is carried by the brake dru'mf64, and has three lobes. 1

.The'rack bar-58is'effective for rotating thesprockets 12 through one third of a revolution on each stroke and therefore one complete lobfeiof the cam 70 Will pass. over the roller 69' duringeach stroke. The

mandrels ;16','-and their base blocks 15, are

rather heavy in the aggregate and When the machine is operated at high speed, the inertia of these parts.tendsto; cause coasting and .drum 64. .Abrake'band 465 extends around v di emma, It Willbe ap reciated thltsuch cozisting is possible as the teeth on the clutch 'membe'r 55 will fsimplyclick overthe t'eet'h54 in the gear-:53. Thepur'pose of the brake niedhanismistolprevent this overtragv'e'l;

Figure 8' shows "the position of the parts a-tfthe end ofa stroke; It 'vvill be' noted that adjusting bolt 67 the braking effect can belso regulated ithat't'he mandrels "will he brought to a smooth stop-at the proper point.

It Will be noted from-Figures 'an'd 6that during the to run-pt the "chain, *th'e bgtse "blocks '15 of'th'e' lnandrels are I supported jdi rectly o'n the tab le 5; so that the p'ressu-ne ht the various Working stations is taken direct- 1 by the teble andnot through "the {chains on the bottom run the *chains ind the "'m'anclr'els arefsup'portedon guides 71.

The bglse blooks l5'ztre provided with small holes 7 2 on each side 'ad'a pted to reeeive fpi'ns 73. These'holeslare specedaparfla distance corresponding to the pitchof the chains 14, and the pins 73 take' the place of the chain pintles for the links through v'vhi'ch the connection between the chains and the'b'ase blocks is made. Stretch and vveai' o'f the chains is compenszited itor by substituting shorter links 'between adjecent base 'bl'oeks.

' vReference :to :Figurel Will i'sho w that 4 h p v -irlphery of each sprocket, I certain te'et-h are 1 instead 'o fthe teeth in "the heed sprockets F12 and 13 extending all'ithe: wayia'round the *peomitted. Because 'of this 8 construction," only stations. Such nie'ansis'of value regardless of the type 1 of drivef employed fori in'ovin'g ithemandre'ls from one'position 'to another.

links lying alongside the" base block 15} are .en gaged by sprocket teeth. This permits o f using'the shorter substitute links abo-vereferred to between base hl'dcks I Without any tendency of 'ith'e chain. to cliinb on the sproeketsi'and-ethus 'intefere with *operation.

11}; to the f et. that fchains jstre'teh', it is ne'cesseny to {provide some locating means *for definitely positioning "the'm andrelsi at the The locating means is shown in detail -in liig- 11M25 Th'e tablefi"is-bored to receive stop =member's-74; ;The'se members areshouldered, "as indicated at 7 7 a "and are "held in; place by bushings 75. They a're normally urged "up- "weirdly by springs 7 6. They have an in- "c'lined face 77 directed toward the ean"feedend of the maehine; so 'that When-they {are engaged" by a. baswbleek 15 they vvi'll;' b'e i depfess'd end'"will not i'nter fere with the shown in Figure 5:

The cams 87 are carried "on? a"'sh'a ft .88 havin a 'chain' and sproeket connection' 89 vertical "direction ziloout th'e fpivots -84, -thus moving ltheip'ins 9 1 above or below the table '5. The "cam 86 are-effective fer positively 87ar'eeffective for causing: a -positive ipwerd moveinentg- I j I I y The.cemsT'86end'STB-fe S timed that the pins 79" are I moved upwaidly j'ust prio'r f to the c'oinpletiolroif a feeding stroke; Thelead- T 1,

ing edges jofthebaseblocks 15*e11gegethe pins' 7 9 ju's't prior to "t'he 'efitl" of their travel 1 drels.

"accommodate rings 19-2 indicated "by dotted will rnove'upwardly until its shoulder en-V gages theibu shi-n'g 75. Thispis thewposition.:

travel of :the base block aioross thej' tablej top. V -l-lowever, as soon as a base bloekftraivelsover one of these stop. 'rnelnbeifs', the: stop inembe'r I Each stop member has :zi' s'ti-uei'ed shoulder 78. *In operation the rack bar -561 ;is set 580 as to terminate the-feeding movement with the trailin'gfedgerof eahEbasieblock a slhor c' g' distanceiahead-of the shoulders 78. i M'ean's is provided for engaging thefleading edges :of'th'e baseb'locksandfforeingtheblocksbjeck afgainst the shoulder78, thusidefinitelyipositioningthe mandfelsunder the heads of the- 0 machin'. The means fOr urgi'ng-the haseblocks back werdly'{comprises pins 79 working in openingS' SO inJthetable top. -The pins extend roller engaged by 'eemszseand 87; f The earns 86 are carried on the shaft39g-(Figure' "belowftlfe table top ind 1 at their lower ends. 5 5 are provided With Wrist ipins i81 engag-ing ,isletsqsz'in ar-ms 83. illhe'a'rnis 83iere pivoted 1 with the 'shaift39. Itotetionofthe-sheft 39 "is effective-"for s'wvingingjthe arms 83 in ja L moving the pijns downwardly, "while the cams Byreaf's'on o ftthelfaietthiit the pi'nsmakeonly the shoulders7'8., *thus positioning the man-' Mandrels V The. tandem. ii b ifiev t i v .91 H These grooves are, arrenged'to lines? in Figure 6. The rings';eresonievvhat "similarytopiston'rings exceptthatfthey.pro Y .jectbeyond, the peripheral surface ofthe I mandrel. They determine the distance a can Y body can he slid over. a mandrelganfl they hold theeen bodiesin"proper.iposition forithe operations which'ii-re to be'kperfor-med.tv "The several grooves "adj acent "the bottom of the iniendrelsiare rpr ovided' toetaike"-icare of can bodies of diiferent l ength. The grooves near drawn 12 8'. The' stripf eri 132;.i's qarried li a. tem

133.. eThe's mfisisheuldefed c l ar; 13. amete 's sml A A jcompms;

'i fitn meuy esthe t J Yd he1dthettiPPrlizQWithiQt 8 "Prev; ed iii thelbQttbmjface, b fthe her 128, At is; ppe rend th; 'slte 1 m die e 'yiefi h 'n e g h sibeenwithfrex it eentthetem 137 p mits-the i 13 it f ve th s ippe inwa d y, n e 'el dj he SPF a V the e eetr pperithen; Di e, e t

ther f dirng 10f the Str p:

Th f fl p ee e' l Pm'deeel 53 2 9; hunchingo'f 'ceps i e'm. th pape fttipil fed ou w d 'y hrbugli a csl t t e frv barrel 105k end eol' nesjpendihgtg Outsidefthis slot thereejispreyid y cu m slk i 3s; d a l ep rew tester;

sl, e124, the-sheer knfiezxsejgm vegawn- HM r f rm'ee wem 1 W .in westwar a; The dow w re" e gimmiispheworking st'ri'ok. 1, .e t pew'erfis reqlll ired'at'thijs 'tithef",

ward.- stroke is meted-by cm 1434. i 1

Y f lls 14;,5 c r d y'the rah; 114117 The-re urn me eieewee ee e e. de

t lteel d iiilgepr ngs 9i ieia ewhe amlee: By" t W? t e-v e eeith e lim neted, it is lind he the 'e hl'y eee eiet y fl 'ded w ith'hn' 'gt-tehsiolg. 41,

he -m 12.

,8 u e tit;

, ordsrehe;sfirip eregaigfi ie (mp while the lunger I-ZSiSbeing'Ys/ithdraym;

h to" top pefii i permitting Lien t. ef the, -ofionthe'anyil jawshahda hqlgltheeep ierminexteel 1; he steti n" priSeS'ac I 1 to be rocked about mearrying ring 152; 7 Q

ram 153'1ies ins ilie'the segments 151."

When the head igmgyedjupwigrdlfiff hemem f -engagess the inner pQ t iO /zlsn L he segmen s and reeks them abont' theri g 1lt 25 111 1 11599 n -t m n M-Jgw'id 0 ,1 e de ee I Ward stroke Qf'fihfi lemme b tqm :RQ-rtibne i the sgmentsylmv ngaget e'c p en 'the segments then, move, to, the pqsitieng of Fig e ure 5;: Theyare f ced eutwa dlytQisli ht degfee bythQ ram 153; 'Atiffthis .timeF the' 1 t edge "of theme b dy andlb frthex-flange are the cap-rimming'h adm ee Sh the dy end-ith e epr eee te e iriee e l eprodnrce nolle ieint. jQux n ib' I rd e h's el shee ,5;5: engege h h y; c ampe n, h l n r l- 7 Upon the next ilpwal' d stIIQke pi thei atm l4l w he se meet i ere ti cted andplul clear ft e rolled joint; The. cam. iis nthep moved over {to the shaping statioh where; theanyil jawsere again,engagedtoplampi the can body An internal i eme is; me a f t ag ainst.-the.-topi.ofi'the c an apd'inside the 95,

rol e jo n an i ping ri g 15 r s a e the rolled joinqthus .cpmpleting: theg ean.

s ee i mit??? the Wem "See-Figu es fiend When e mandr l r aches t e he z e e ly 1 extending position at the left handiendi Qfigh,

th eo is str pp e -by means o pressed 311:, see Figtgiefi') e The Z ir- 1119? opening in the'pllingeit l 6Opiegi stensfwith a a small hole IGSH-inthebOttOmOf the mandrel. j t .115 1 As sho ,11 in Figure 5, thfifidbflthehqhi163 is flared Outso'that aprepe1 j0iht between I f the tip of the plunger 'IGOhhd the mandrel is insured. j Q I e I1 rder "fie a e careofiweerl and t ma Certain that aftight jbintbetween'thephlfigeg 16 9, apid the maridr'el will, beiobtainecl, the t ti h ne s. n the je nt can eldbta r d i Tmeewei omm mew eefei ewe 7 extendihg te' the'topiofthiihandi'el 'sothdt u h ng fiQ- rna ly!threeded'a d' 1 .110; p yide'diwith ar hqllo w sqifew 1,60%. 1It i-iS the M l e 'ei of this sc w w h an actual a emen with the m ndrel- "By; ht a iii f ff i -wa i l rfl iwfl fd y' QEfiY 'tQ th I plunger 160 propel", thefdesjpeel degpeeelf .SeejFiguresl, 2, 9 andfll'. l a pulley 175 r i When a mandrel is movedinto the posi-' [The shaft 144 has an extended portion 195 J amen may pass through thetop of the mandrel and thus blow the completed can off.

tion of the mandrel atthe left hand end of Figure 5, the base engages the outwardly projecting end oftheiscrew160 thus causing the screw 160 and the plunger-160 to move inwardly against the'compression of the 1 spring 162. As the mandrelmoves to theposition shown in Figure 5, the spring 162 T 'forces'the plnnger 160outwardly so that the screw 1'60 'e'ngages'the' mandrel and makes a".

sufiicientlyair-tight' connection to insurefthat jig-lithe complted can will, e blown from th mandrel. i Y I Q The supply of compressed air tothe pipe 158 isflcontrolled by, a valve 165. This valve has a ster'n 166 provided with anoperating lever 167 One end of the operating lever carries acam follower roll 168 and the opposite end is provided with a spring 169. The follower 168 engages a cam 170 carried by the mit're gear48. Upon every rotation of the shaft50wthev alve 165 isopened for a moment,

. thus permitting air from any desired source j to pass to a pipe 171. Onebranch 172 of the ,p'ipeY171 leads to the pipe 158; The other of the' mandrel."

j branch 173 leads to a flared nozzle 174; 'The '30; a ing head CF and is so positioned thatit will nozzle 174' is'located adjacent the'cap formblow any loosedirt or paperdnst oif the top The main drive is through V whichv acts'both as a fly-wheel and a belt pul- .5 ley, It is carried on a flanged sleeve 176 keyed a shaft 177 A compression flange 178 is provided on theside of. the fiy-wheel 175 op- I: posite the flange of the sleeve 176., The sleeve 1761carriesa handwheel 179 by which the flanges may be squeezed together so as to Imakea friction clutch. The shaft 17 7 carries a pinion 180 meshing witha gear 181 on the shaft 144. 'The shaft 177 also carries a cam 1'82effectivefor operatinga lever 183 (Fig;

. ure 13') which is desirable for operating a stripper in connectionfwith certain types of f The gear" 181 makes a connection connected-through a lever 186,-through' a foot type such" asis employed on punch presses and the like, so that} the cam fthrown'out-of time; I i

182 never The shaft 144'carries a' gear 18 8"meshing with the'gear 63 for operating the rack 58,

i whereby-the feed-mechanism is actuated. The

shaft 144also carries the'cams 143 and 146 for 'eperatingthe ram 141 A gear-189 -on 'the' shaft144 meshes with an idler gear 190,

198 meshing with a mitre gear 194 at the top of the 'shaft'50.

carrying a gear 196' which meshes with a gear197 keyed to theshaft 115.

Safetyv deez'oe fSee Figures and 12.

In Figure 12 the direction of travel of the mandrels 16 on theirreturn run below the table "5 .isindicatedby, an arrow. A chain line around one of'the mandrels 16 indicates a can which has not been stripped from the mandrel. "Continued' movement of this mandrel willv bring the can intoengagement with a roller 198; Theroller 198 is mounted on a lever199 pivoted to a stationary switch member 200 at 201. The stationary switch member 200 is carriedby a clamp 202 on a post 203 so that the switch, may be adjusted to different positions depending upon the size of, mandrel employed. Clamp means 204 is'provided for adjusting the switch toward or away from the mandrels.

The switch lever199 is normally urged toward the pathswept out by the mandrels by aspring 205. This movement is limited by check nuts 206.

electrical conta cts 207. These contacts are normally but of engagement, but when the roller 198 is touched by a can body, an electric I control circuit is closed, thus "stopping the machine.

While we'have herein illustrated and described the preferred form of our invention, it willbe understood that it is not limited 'to this form alone,as it may be otherwise embodied within the scope'of the following claims. 7

We claim :i I j 1. A can makingmachine comprising a mandrel, means for moving the same in an orbital path, means for feeding a can body to the mandrel during such movement, means for feeding a cap tothe body, means for formingaclosure joint between the cap and the body, and safety means lying alongside'the path whereby, themandrel moving means may be stopped if the can is not removed from the mandrelbefore it starts another cycle. 2. 'A can making machine" comprising a mandrel, means for moving the same so as tosweep out a path lying in a vertically extending plane,'means'for feeding a can body to the mandrel while it is in a horizontally extending'position, and means for feeding a cap to the body while the mandrel is in a vertically extending position. 3. A'can makingmachine comprising a mandrel, means for moving the same so as to sweep out a path lying in a vertically extending plane, means for feeding a can body I The stationary switch 1 member 200 and theswitch lever 199 carry its to the mandrel whileit is in a horizontally extending position, means for feeding afc'ap to thebo'dy While 'themandrel 1s 1n a vertically extending position, and means for forming a closure joint between the cap and thebody while the mandrel" is in a vertically extending position.

4. A can making machine comprising a mandrel, means for moving the same so as.

to sweep out a path lying in, ayerti cally extending plane, means forffeeding a can body to the mandrel while it is in a horizontally extending position, said feed means comprising aitroughl lying in alignment-"with the mandrel when it is in "the feeding-position, and a pusher working infthe 'troughf 5; A, can. making machine comprisin'g a mandrel, meansfor movingthesa me soas to sweep out a path' lying' in a vertically extending plane, means, for feeding a" can'body to the] mandrel while itis in ahorizontallyex tending position, said feed means comprising a trough lying in alignment with the mandrel when it is in the feeding posi'tion, a 25 pusher working in the trough, a drive con nection for the-pusher, andspring'means in the drivingiconnection, I j p I 1 Ancjan' making machine'comprisinga mandrel, means for moving the sameso as to sweep out a path lying in ra vertically' extending plane, means for feeding can body to the man'drel while it is'in a horizontally extending position, saidjfeeding meansf'comp ms t ough lyiflg alignm i h ma d l w e n h f d g-p siti means for supplying can bodies from one side. of the trough,and;a pusher workingfinf the V mandrel, a: support for the inandreh'me'ans' carrie dfby the support for moving the mandrel soas to sweep out apathlying verti 'c'ally extendingplane, :means for ifek'iding La cap to the body,'means for forming a iclosure joint between the cap and thebody while'the mandrel is vertieally extending position, and means for adjusting the f support vertically to acoommodate difierent sized oans. 9. A can. making machine comprising a mandrel," a support therefor, means carried hythesupport for moving the mandrel so as to sweep out a pathlyingina vertically extendingplane, means for feeding a can body to the mandrel while it is ina horizontally extending position, means for feeding ra -cap to the-body, means :for forming aclo'sure joint accommodate different sized" cans, the teed means being simultaneously adjustable with station, said mandrel being t iltabletofdifierent positions, and. feed means torsupplying can bodies toithemandrelwhen it is tilted with relation toits position at the station;

1-1 A can makingl nachineicomprising a I able mandrel for conveying can bodies I the station, said mandrel being tiltable' ,to

station for forming ahead in thecan, a ma difierentwpositions, feed [means for supply:

ingcan beams to rmware when a is man v 7 s5 springoperated backing means for position with relationto itsposition at the, station, and

mg the lmandrel during the 1 feeding opera- V 12.;A can making machine comprising a mandrel, a supportftherefor', means for mova ing themandrel on the support-so as to sweep out a path lying in a vertically extending] b w e h iea hs body w t e ma drel is in a'vertically extending position, and means for adjustingthe suppo-rt vertically'to plane, means for feeding a can body tothej I mandrel while it is in ahorizontallyextend}; ing position, drive means, for vthe feed means, means forfeeding; a cap t o the body, means for forming a closure joint between the, cap

I and the body while it is in a vertical position,

and means for adjusting the support vertically to aocommodate 'difierent sized cans, the

feed means being simultaneouslyadjustable with the supportanda'the drive means" therefor beinmearried by the support and adjust -v A:

able therewith, r v i a 13. In acan making machine,-atable,aflex-;'

ible memberreirtending nongthe' top, 10f the table, around the ends thereof and .thereber low, means for imparting asa bystep move ment to the flexible, member, a mandrel mov} able with the flexible-member, and'a working station along the pathof the mandrel. V i

no i i j i hine, table afiexi A ible member extending along the top of the table, around the 1 ends thereof, vand ,therebelow, means forimparting a step step move ment to the'fiexible member, a mandrelv mov,

able with-the flexible member, feed station? n 7, atone end ofthe:table,and a'working'station 1 abovethe-table; i

15. I a can .making machine, ai table, fiexiblemember extendingaalong the top of the-table,around the ends thereof and there below, meansior impartingastep by step 5 movementto the flexible member, a mandrel tion at oneend of the tab1e, can ejector means at the other end; andaworking station inter mOv'alOle with the flexible member,a feed sta- 2: i

tabla-around the ends thereofand therebe-- low,1means for imparting a step by stepmove ment: to the flexible member, a mandrel mvable with th'efiexible' member, and a working station along the pathof the mandrehjthe table being arranged to directly engage and support the mandrel structure when it. lies in Y eperative position at the station.

' 17 Ina can making machine, a: table, a

movable with theflexiblemember,a Working I v locating means for definitely positioning the fmandrel at the working station.

flexible member,extendingaalongthe top of r the table, aroundthe. ends thereof and therebelow, means :forjimparting .a step by step movementto the'flexible member,'a mandrel station along the path of the mandrel, and

18.1Ina can making machine', table, a

"flexible; member extending along the; top w of tl1e table,around the ends thereof and therebelow,.means forimparting a'step by step movement to the flexible member, a mandrel 1 movable. with the flexible member, a working statlon along the path of the mandrel, means limiting'the returnmovement-of the mandrel,

' andmeansurging the mandrel against such limiting meansat the end of a feed stroke, the

limiting-means being so located as to properly position the mandrel with respect tonthe workingstation;

i v 19. Inacan making machine, a support,

a flexible member extending along the support, means for imparting a step'lby step i movement toth-e flexible member, a mandrel carriedbytheflexible member, a working stationfalong the'path of the mandrehqmeans limiting the return'movement of-the mandrel, and 'means urging the mandrel against the limiting means at the" end -of a feed stroke, the limiting means being so located as to stat on.

"properly position themandrel at the working 20.'='In a canmakmg machine, a support, a

flexible member extending along the support, means for imparting a step by step movement ftothe' flexible membeiga mandrel carried by the flexible iiemben'a work'ing station along the path of the mandrel, means limiting the end of a stroke, and means for withdrawing stroke. I i

- 21 In a can making machine,a support, a '7 gflexible member extending along the support, means for imparting a step by step movement to the'flexible member, a mandrel carried by return movement of the mandrel, a pusher forfurging the mandrel backwardly atthe theipusher from the path duringthe feed thefflexible member,aworking stationalong return movement ofv the mandrel, a member movable into or out of the path swept out by the path of the mandrel, means limiting the the mandrel, means controlling such move- I I ment, and springmeans effective for pushing the member when it is in the path of themandrel soas to urge the mandrel backwardly againstsaid limiting means.

' 22. Ina can making machine, a support, a flexiblemember extending along the support,.-a mandrel movable'with the flexible member, means for imparting a step by step movement to such flexible member, and brake meansfor preventing over-travel of said flexible member. i y a 23. Ina can making machine, asupport, a flexiblemember extendingalong the support, a mandrel movable with the flexible member, means forimparting a step by step movement to such flexible 'member, brake means for preventing oventravel of said flexible member,

and means for applying increasing braking pressure during a forward movement 24. Ina can making machine, a support, a flexible member extending along the support, a mandrel movable with the flexible member, means for imparting a step by step movement to suchflexible member,brake means for controlling the movement of the flexible member,

on the table and carrying a mandrel, rack and pinion means for operating the flexible member, the rack bemg operatively conynected to said shaft, and means in the rack connection for adjusting the length thereof. 27. 'In a can making machine, a plurality of mandrels movable in an orbital path,

means for imparting a step by step movement-to the mandrels, feed means for sup 'plying'can bodies to themandrels, a station for working on a can. body on a mandrel, locating means for definitely positioning a mandrel at theworking station, and a shaft .for bringingthe' locating meansinto operation, the feecli'means being driven from-said Shaft h I 28; A can making machine comprising a frame, 'a ram thereon for effecting an voperation on acan,-a tableadjustable' toward and away from the ram, a supporting mandrel-on the table for" carrying the can being worked onand' a tiered for the frame extending in the direction of adjustment of the table, the

tie rod.

table. a p I 129; A can making machine comprising "a frame, a ramthereon for eflecting an operation on a can, a table adjustable toward and being/threaded and engaging the away from the ram, a supportingmandrel on his the table for carrying the. can beingworked on, and a tie rod for the frame extending in the direction of adjustment ofthe table,

the-tie rod being threaded and engaging the table and rotatable so as to effect an adjustmentof the. table.

30. Inacanmakingmachine, atable, a flexible member extendlngtherealong, aman-- from the path to permit forward movement of themandrel,locatingmeans for definitely positioning the mandrel for an .operation to be 'performed onYa can carried thereby, a shaft,-:means operable thereby for putting the locating means. into operation, and means operableby the-shaft" for moving the anvil jaws-toward or. away from/the path of the mandrel.

32.;In a can makingmachinma table adjustable to different positions, a flexible member extendingalo'ngthe table, a mandrel car'- ried thereby, anvil-jaws movable toward the path of the mandrel to embrace the same and movable away from the. path to permit forward movement of themandrel, a shaft extendingin the direction. of adjustment of the table, and means making a driving c'onnectionwiththe shaft at any adju'stedposition of thetable for operating the anvil jaws. 33. In a can making machine, a mandrel, anvil jaws movable toward or away from the mandrel, drive means formoving. the

' anviljaws, and spring means in} the driving connection -'so astopermit yieldingof such aws. a

' 34. In a can making machine,*a mandrel, an anvil'jaw movable toward or: away-from the mandrel, a cam for effecting such movemerit, a shaft. on which the cam is mounted, the cam being slidable on the shaft,and spring 'backingmeans for the'cam.) 4

preventing-withdrawal of the cap fromthe I v inghead havingaflanging die, and-a plunger for forcing a blank therethrough, anda mandrel adapted to support a can-body insub- 'stantial alignment with the plunger, the

plunger being arranged; to carry the flanged cap into position'in the can body. l

39. Ina can making machine, a cap insert for. forcing: a blank therethrough, a mandrel adapted to support a can body insubstantial alignment-with the plunger, the plunger be, H

ing arranged to carry theflanged cap into position in the can body, and stripper means for can body when the plunger is retracted. V

40.. Ina can makingv machine,-ablanking die for cutting, blanks from sheet. material,

, ing head having. a Hanging die and a plunger j j a flangingdie,a plunger for-forcing the blank therethrough, and a mandrel adapted to sup.--.

port a can body inv substantial-alignment with the plunger, the plunger'being arranged to carry the flanged cap'into position in thecan body. r

41. In a can making machine, a cap inserting head,feed means-for s'upplyi-ngstrip material thereto, a die in'thehead for-forming a blankffrom the strip material, a flanging I die in the head, a plunger-:for forcing the blank therethrough, and a mandrel adapted to support a can body in substantial align ment with .the'plunger, the plungerbeingar i ranged to carry the flanged capinto position in'the can body- 42. In a can makingmachine,,acap insert- Y ingh'ead, feed means for supplyingstrip ma-. V terial thereto, a die in the head for forming a blank from'the strip material, a flanging I die inthefhead, a plunger for forcing the blank 'therethrough,; af mandrel adapted to support a can body in substantial alignment with the plunger,the plunger being arranged P I i to carry the flanged cap into position 'in the can body,,and shear means for: cutting gthe scrap-material." J 1 In testimony whereof we havehereunto set our hands. U GEORGE O. IFROSTAD. JAMES I .1.,Al Il IE1 T.

435. In acan'makingzmachine, a"ram,a-

.cam for effecting a working stroke ofthe ram, andanother cam for effecting a return movement thereof.

36,.*In;.-a can making machine,1a ram, a

cam for .efiecting'a working stroke of the ram,another cam for effecting a returnmove-.-

means for the last mentioned cam; Q

another cam for effecting a return movement thereof, and a single shaftonwhich the: cams aremounted.

' 38. I Inv a can .making machine, a cap.;insert-:

37. In can making machine,.a-ram,'a .cam for effecting a working stroke of the ram,

ment thereof, and spring backed follower a

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