US2265574A - Combined tucker and orienting mechanism for snap fastener attaching machines - Google Patents

Description

Dec. 9, 1941. F. H. PETERSON A 2,265,574

COMBINED TUCKER AND ORIENTING MECHANISM FOR SNAP FASTENER ATTACHING IMACHINES Filed 0G12. 18, 1938 2 Sheets-Sheet l Redezgck J. Beiergon,

Dec. 9, 1941.

F. H. PETRsoN 2,265,574

COMBINED TUCKER AND ORIENTING MECHANISM FOR SNAP FASTENER ATTACHING MACHINES Filed 001:. 18, 1938 2 Sheets-Sheet 2 Patented Dec. 9, 1941 COMBINED TUCKER AND ORIENTING MECH- ANISMFOR SNAP FASTENER ATTACHING MACHINES -Frederick Petersom Watertowm ..Conn., as-

:sgnor toThePatent Button Company,'Watexbury, Conn., a-corporation Iof' Connecticut A"Aplzflicatoin'October 18, 1938;Scra'tl'Ne.I 235g650 8 Claims.

' My invention relates'tora newV anduseful'improvementina, combined tucker and orienting mechanism'for snapfasteners, buttons, or'the like.

Inthe patent granted .to'Franklin R.'White, Number "1,567,882, .of December Y'29, 1925, lthere is shown a button-attaching machine `with its r'tucker mechanism The present invention yrelates'particularly to an "improved 'formoi this tuoker mechanism, so" that it "will `not "'only perform all of its previous f functions, but Will, in `addition thereto,.,orient^'the button or snapfastener in its'passing tothe attaching station.

Also, in the above-mentioned patent, the button heads are :fed'frorn'one Ahopper to buttonholding'jaws-'Whilethe tacksare fed tothe attaching station ldirectly beneath; the' jaws' Where, 'on' thev descent-of the plunger, "the button head is driven down on the tack, which, in turn;4 is forcedt-hrough 4the ygoods-up into the button head land` there 4deformed toI thus tightly fasten it toits cloth.

LThe-means for-advancing the vtacks to the' atltachingstation isknown las the "-tucker mecha- -nism,'- and the present invention has to do with an improved form of tucker mechanism Iwherein thetucker slide' forcesthe inverted snap fastener cap (with itslhu-b upstanding) to the attaching stationl directly beneath the vshell-holding iaws, so that when the plunger descends, lthehub of the snap fastener cap l'is driven through -the clothv and'ri-mmed- WithinE the snapffastener-"shell to tlfiustightlyy fastenl the capftoits material.

Still -anotherobject of the invention -is-to `not only-progressively advance .these 'snap -fastener ca-psl'to-the attaching-fstationof the machinelbut to orient them -during their travel Vfrom -their chute toi theirattach-ingfstation, sothat the A insignia or :reading .matter on l the upper face .of the cap. willbe rin .proper readable positionlwhen attachedto i the` garment.

YThe 'snap fastener "capable `of .the 'orienting movementt'forms the subject-matter of a companioncase filed on July'll, 1938, Serial Number 219,254, for fSnapfasteners iStill another object of theinvention-.Iis to provide-atucker mechanism (that-Listoy be used ina button-.attaching y machine: or snap fastener Lattachng machine) havingafinger that bears on the under` surface of the rim ofv the .cap (it being remembered that the cap is in anvinverted position Whilein the` machine) so thatv the cap, duringlits advancing movement, .willbe slowly rotated `While being .moved forwardly-until vsuch time as'the tucker nger springs Within@ c-utout or notch in the under rim of the cap, which Anotch bears 1 a certain "de'niterelation 'to "the `vembossing `on 'the cap.

After the'l tucker slidahas sriapped'wtlfiin the notch, i the cap His then in itsproperlyV oriented position AandI will be`I moved forwardlyin this po- 'sition until it-reaches"the `attaching station; so that on the descent of thevplu-n'ger,v theapfwill be properly oriented'=withrespect Vtothe goods to which' it -is to" bel attached.

"St-ill vanother object diA they invention-is to'provide a simple form of tuckenmechanism wherein the tucker slide or nger is springpressed near its pivotal rear end, l{so'that the'fforwaridfpor-tion of `the finger may ''everitual1y `.snap Iivilithin Vthe notched under 4surface --f 'the cap :Ia-nd' uvi/herein the Walls bounding the passagewayforvltravelrof the 'snap fastenerv cap to fthe f attaching 1. station are, respectively, plane 'onthe tone .side and serrated =onf-the opposite side. ''I'hus,ithel-button or cap Will.normally-be slowlyzrotate'dras therliub contacts with the serrated portion until held against rotation by .theitucker finger, after which the button will movefforwardly inl itsnorientedfposition Without furtherrrotatien and ,thus-he `properlyv positionedon the attaching station.

Still, another objectzo'f .theinvention fiseto'gprovide a tucker slide for snapzfastenerf caps'wherein 'the hub of theffcap ywilt-pressa on. its one side against a serrated Wall and on itsioppositeside against a smooth wallfwhich latter Wall is slightly spring-pressed, so that the two `walls Ttwill presentV enough friction to revolve the: cap -until the tucker finger -slipsvintd position,-after which the 'spring-Wallwmay give:slightly,:and the=but ton or cap be forced'fwithout rotationfinits 4.truly .'oriented'zposition to. the attachingstationlStilleanother `object of -thefi'nvention is to -so arrange the mechanismthat yafter ^the .tucker finger has snapped into.position to advance the vbutton -or cap-in its oriented l-positionf-it .(the cap) Will'be advanced `without rotation, l.,loutrthe friction of thenside walls^-W-i1l-;be,removed, .so-that the hub of the cap Willrinnoiwaybe damaged when traveling to its attachinglstation.

Still another object of the..inventionisltoepro- .vide-` an improved tucker Amechanism .jf-on orienting snap fa'sten'ersmvhichs-fasteners havea.n{otch or depression on the under side of .the.rim,..as shown in .mycompanion application.

The present .tucker mechanism lalso ,designedl to Work equallywaswelLwith' tacktbuttons wherein ,there is a. notch or cut ini. its runder, Ap0rtion, or wherein thebuttomor snapffastenerhas anwindentation .infdtsf habi-tof receive the end f the tucker iingerfasfwill bef-hereinafter explained more in det-ail.

Ifanisrn. v s 1 Fig. V2 is a longitudinalcentral section to Fig. 1, E,showing a'fragnientary. portion of the feeding 1 chute Yfor the caps, a fragmentary portion of the 1 'Figf2 'sg@detailed'Perspective 0f. @estudie-r l slide and its pivotal dog member; .Y '(5 the atta-ching station, thus doing away withla separate machine for orienting the caps, as has been tried heretofore. l -v Y Y Still another object of the invention is Vto-so l arrange the tucker mechanism that as the cap l is deposited on its attaching station, thetucker,

slide will be slightly elevated at `its forward end, l

so that there'will be no danger'orlikelihood of the cap being pulled rearwardlyas the -tuckerA 5 1 slide returns. f Still another object of the invention is'topro- 3 vide, a tucker slide finger `with a wedge portion on its upper surface which Will engageoneof the Q spring-pressed frictional ywalls* along which the cap passeaso that after the button'is properly oriented,the"spring Wallis forced slightly away lfrom Ythe vhub and thus avoid any filing or cutting action with respect to the hub.

, l With the-se and other objects in View, the invention consists in certain new and novel featuresgand combination of parts, as will be hereinafter more fully explained and pointed out in the `claims,

.Referring now to the; drawings showing a prel rferred embodiment and several styles of snap lfasteners vthat may be oriented with my improved tuckerrslide mechanism,

Fig'..1;is atop plan view ofthe improved tucker l taching machine for operating the tucker mechsupporting arm and jaws for the shells, and a the shells von the caps;

l 4Fig. ,3 is -a1transverse-sectional view on the line 3-43`of Figfl;

Fig.r 4 isa detailed sectional view onithe Yline Fi'g..5 yis a fragmentarydetailed bottom `plan Fig. 6 is 'an enlarged top plan View of theY cap proper relation to Fig.V 7shows a slightly modified form of cap member'with `an indentation in its hub to form i the'oontacting pointewith the forward end of the g finger of the tucker slide;

Fig. 8 ris-a similar View vof 4 a further form of ,1 notched cap fastener;

l :slide mechanism for .orienting snap fasteners and i thelike, ,together with parts of thebutton-,at-

4o Y Y Y tucker slide maybe incorporated is shown in the fragmentarysportion of the plunger for 4forcing member of the snap fastener, showing the notch `I runderneath in dotted lines in the insignia on the cap;

Fig. 'W9 shows a notched'cap fastener with' arib on its funder'surfaceA to Vbe contacted with the tucker slide;V

Fig. 1o Showsaeep fastenergmth a 'groove Von l t'sundejr side vto receive theftucler' slide; Q

l Figgllishowsfa cap memberfwith" a tab on ,end of the tucker -sliderto4 be oriented;

3 j Ys `11min@Siae that is to' contacpwim the forward l Fig. 13 is a perspective View of the smoothfaced pivotal arm or member of the slide;

Fig. 14 is a top plan view of the same;

Fig. 15 is a view in side elevation of the member as shown in Fig. 14;

Fig. 16 is an end view thereof;

Fig. 17 is a side elevation of the arm from the reverse side of Fig. 15;

Fig. 18 is a plan View of the frame mounting or table of the tuck'er slide and its pivotal member; a

Fig. 19 is a front elevation thereof; and

Fig. 20 shows the stud portion of the snap fastener as attached to its cap.

Referringnow more particularly to the several views,l there 'is shown in Fig. 1 the improved tucker mechanism and several of its associated parts for orienting snap fasteners or the like with `relatif/'Jil to the garment to which they are to be attached.

In a companion application filed by me on July14, '1938, Serial'Number 219,254, for Snap fasteners, there'is shownra snapxfastener cap similar to that shown in Fig. 6, which hasga notch cut in the under surface of its rim, so that the finger of the tucker slide will Ydropwithin the notch when the cap'is in proper alignment to receive the finger, and in this oriented position, the cap of the snap fastener will bemoved outwardly to the attaching station.l In the instant application, Figs. ,1 to 4, inclusive, may be seen the block or table I, in which patent to Franklin R. White, number 1,567,882, o fVY December 29, 1925. Other v.similar buttonattaching machines are shown in patents, numbers 1,079,968 and 1,157,743, also granted to Franklin In .the present instance,however, the tucker yslide has the finger arranged to pivotally move upwardly and Vdownwardly,as well as forwardly and rearwardly.V u Y, y

Referring for the moment to Figs. 2 and 12, there is shown the slide'or base, 3 of the tucker, which is substantially T-shaped to move Within the groove 2 of the block I, already mentioned.

On the slide 3 isopivotally mounted the linger dfand'there will also beV noticed the small overhanging wedge-shaped vear 4 that is adapted to bear against a spring-pressed arm,V later tobe mentioned, to force thisspring-Apressed arm'outwardly as the wedge-shaped Yportion contacts therewith. On the under vportionof Vthe linger 4 there is vthe downwardly projecting lug or ear 5,"through which passes the pivotal pin 6. vThe nger '4 is reduced' on' its' under portion, as'at 1, leaving a stop l', while at'itsextreme forward leaving theprojecting'carnsurface 4b at its exe Itimight'beimentioned at this" point that'as the :.tuckerrslidel-and"finger fadila-nce? to fthe loutermost A.rpo's'itionjithe:camsurfacev 4b will contact with the `4set-screw I.' ,"f'heretoforefmentionedgand cause' the forwardfend of :ithe ftucker '1 finger f4 `to elevate.

rThus, when `ithetu'clrerffinger-starts l' its yreturn, there is :noi -dangerA of- .pulling 'the cap'n rearwardly with .it.

To'lthesrear. of :therpivotalpointi' ,is the small springtwhich.ten'dsto'depress the outer endQS of the fl'ngerzbut=will;permitfsaid vouter end to raise. slightly to roverri'def the rimf of :thefpsnap fastener "element and will then holdlthe finger down on saidrrirnfsothat itfwillsnap down into the notch in the under side of thesnapfastener Cap, as will. llbe :shortly explained.

vAs is .well `understoo'd,*fand as Y may" -be apparent fromLPatenty Number; I,567882,1the normal func- ".tionf; of a:.tuckerl mechanism Sis tomove. the tack for .staple ('after'it vhasleft the chute) tothe #attaching station, f sothatewhen theplunger del-scen'ds with Aa-button head, the `tacliwill'be on -'.f,he;anvilA of. Athe attaching station; and as the button headis'Iforced-downfrom its button-receiving cupythemovement of the'button head '.:Wi'lla-forceLthe tack throughthe material to which -thevv button is to beattached, up intothe button ahead, .and there deform. it.

The tuoker slide works in synchronism with the feeding and positioning. of' the,` button head, so-.that .there will always :bea tack in position when the plunger descends'with its button head.

fIn thetpresent .invention,`the tucker slide vsuc- ;cessively; pushes :ormoves :the 'snapy fastener cap 4;C.(1!ig.a6) to the .attachingstation A' (Figs. land .2),fso ythat there will always be .one on the vattaching station When.theplunger 'P (FigjZ) moves downwardly ',to f force the ring member. R Lfrom the cap-holding `jaws J onto .the snap .fastener cap C to thus attachizhecapsmember.v

to the ring member, theseJtWo parts formingthe vfemale member of `theordinary,snap fastener,

-I have only diagrammatically shown the plunger `P and its supporting ijawscJ of the Aatvtaching machine, astheseiare standard partsof a machine, shown inthe `patents:abovefmentioned and'per seform no .part of: the present invention.

"As heretofore lmentioned,.the snap .fastener C, uas shown; in the companion application, Serial :Number 219,254, has a cut-'out portion'or notch I on its under surface, which isrpreferably lo- :cated at a ,45 angle to :the readable .position of fthe insignia on thesnap fastener cap.

The cap' is-provided with the sharp-'edged hub .I I, which is to pierce the cloth I2, as shown in Fig. 20,fand is then to be rimmed over the shell or ring -member'R to thus tightlyshold the cap .and ring member or shell to the cloth, which cap .will later yaccommodate a registered maleimemv.berorstud-of the snap-fastener, las is well understood. v

:The present tucker fingeris not only-v designed to -move-thefcap member to the attaching station, vbut itis also designed-topivotally snap into the notchr formed on the under surface `of the cap when the notch comes into alignmentfwith the said linger of thetucker slide.

YSo that the notch I0 .is bound to come into registry with the finger of the tucker'slide, means areprovide'dfor slowly revolving'the capfC w-hile being moved by "the -tuckerslide vuntil such time 4as the notch.cornes intdregistration with the nger l.4,vafter which kthe, cap, ofcourse, will be prevented'Y from turning :by the linger 'andvwll -be `spring-pressed, as shown in Fig. l.

:foreedfinzitsproperlyf:orientedpositionaonto the attachingistation.

This is accomplished by providingsoneiwalli2I'3 .ofitheA block in which the .tuoker sli'de'rnoves,zand which; bearsr against the hubv I: I withfaf. plurality of, 'small.'serraton's t4, while contacting' wththe .othensi'de ofthe hub is'asspring-pressedsanm t5 (Figsl) itsY contacting Wall,"that .is,.i:ts hub-contacting :wall '.l, having/a .plane surface. i The strengthzof the spring' 24 .is such that asthesnap ratedpwallsby the .action vofthel tucker finger con- :tacting vwith the upstanding hub I l :of 1 thefcap, .the cap will berevolved until'such timef as" the forward end i'of the'tucker fingery drops within the.: notchA I0 of the. cap, Aafter .fwhich'thercapzwill `beheld againstrotation and advanced to the-#attaching station, so that it will thus be moved''in 4its .properly oriented position and. deposited on l20- theattaching station Anas is clearly ishowrifin Fig. '2. `I-Ioweven'the` springarrn I15=w-ill be forced slightly. away from the hubfby the actionA-oftthe ear'd, as willlbe later mentioned.

This armIEr is'shown inzdetail iny Figs. 13: to 11,6

:and will new be 'explainedmore in detail. f

.It will.be seen that the arm I5'is provided-at -its rear end withthe aperture II through which "the stud I 3v may.V passito pivotally'mount the -arm to A*one side of the: table in which the' tucker Slide is mounted.

v.'Ihetaltrle is cut away, as atl I6, as'maylbeseen -in Fig. 18, sothat-the arm I5 with its downwardly extending pin I9' may `rit convenientlywithin the table. The arm I5 has the raised portioniZ ,and itis a. part ofthe face of this raised portion that forms the plane wall- Ithatis adapted to contact with thev hub:` I IA of the fastener cap Cjthe raised portion C2i) being undercut on f this 'face .inFig 3 and Fig.1'6. :The armisy again-'slightly undercut, as at 22, so as to overlieY the part of the 'block'. I in .which` the tuckerl slide is mounted.

'It'will alsobenoticed that the upper edge-of the wall I'is cutfaway' toffor-m the beveledsurface I6 that coacts .withlthel beveled surface Vof the ear I4' on thetuckerngenso that `ast-he vspringl =9 forces theforward -endfof vthe ffii-nger downinto the notch Il)A in the 'rim of'the cap C,

`the slight lowering of the'iorward end of fthe finger.4 will cause ther ear dtobear against't-he beveled surfacefI of the arm I5fan'd thus force it outwardly and relieveI the" friction on thehub. The raised portion 20 is strengthened by" the ribi 23, which may be clearly seen in Fig.` 13.

:Bearing vagainst the pin I8 is the 4aforementioned spring 24 that maybe seen iii-Fig.' Lwhich underlies the arm I5, the spring extending-rearwardly and heldto the framefparh'justbackof the pivotal point I8, so that the -arm'willbe The wall I6 of the arm, it will be noticed; is in parallel alignment with the undercut slot or groove' in-which Vthe cap andnger of the tucker slide moves, and

the space .between the opposite WallV !3 andthe face wall I6 of the spring-pressed'arml is-slig'htly less than the diameter Aofr the hub I I-of thecap, so that normally the hub of the capwill be` frictionally held againstl the serrated wall`l3. lThus,

asthel tucker slide/moves forwardly, the capffthat has vbeen deposited from' its chute in iront ofthe tucker slide Will be revolved Yas-'it Vis .pushed towards kthe attaching fstation `by the' tuckerf finger v4 until'such, tirneras said cap.v ispheldwagainstrdtation by the said finger engaging thernotchlf inthe Cap, at ywhich .time thefspringaarmri will l tbe forced `back slightly, so that thecapfastener .taching stationQA. 1. ;By referring to..Fig.

chine. t 1 1 On the under surfacel of the tucker slide 3, i there is .shown the pin 26, which fits within thelV ,slot 2'I rof the lever 28which latter is shownin a It will cap to advance the same.

will now travel in its oriented position to the at- 1 time` as it is to, be liberated. fAlso shown, frag- ..mentarily, are the supporting arm for the jaws J,

`which hold Vthe ring member R, and the plunger P, which is directlyover the attaching station A.

From this showing may be understood the relative position ofthe tucker mechanism with relation to the plunger of the buttonfattaching mafull line and dotted line position in Fig. 1. be understood that on an operation of the main 'crank (not shown) ofthe button-attaching machine, lthis lever 28 ismoved to drive the tucker slidev and,y its finger forwardly, whereby the end of said finger will passu over the outer rim of the invertedpap C and impingeagainst the hub of the The cap will then be revolved as it contacts with the serrated and `*plane kwalls of the mechanism heretofore described until such time as the finger snaps down- 1 -fwardlyvinto the notch, after' which the spring arm I5 will yield as the hub contacts the serrations and permit the cap to travel in its oriented vposition to the station A. Here the synchronized plunger P willenter the spring member RV and force it rthrough its supporting jaws down upon the cloth and over the hub of the cap C to thus rim thevhub over the spring member, asclearly 1 1 shownin Fig. 20.

Itwill beunderstood Athat in Figs. 7 to- ,11, I`

tenersithat is, different in that VVthe hub may have a slight dent o r notch in it to receive the fnger, the cap may have a rib or tab to impinge against the finger, or thereV may be a groove in its under surface to receive the finger. In any of l these instances, however, the finger, once locati ing the notch ortab or groove, will prevent the 1 snap fastener cap from further rotation and thus 1 properly orient it as it is moved to its attaching 3 station. 1

l have shown slightly different forms of snap' fas- Y It'will also be understood that the present mechanism for orienting the snap fasteners is a l ,relatively simple attachment which may be easily fitted to a standard type of button or snap fastener attaching machine, asillustrated in the Whitevpatents, supra.

l After the cap and thespring ring member have vbeen fastened to the'cloth, the operator will readi l just the cloth. On the next stroke ofthe crank (not shown) the lever 28 willretract the tucker 1 Yslide andranother cap will be fed into position, so that on the next forward movement of the tucker slide, a cap will be oriented and in position to be 1 attached inthe same manner.

Y.attaching machine, or thelocks for Vthe tucker slide, or thevarious .escapements `as, they perse ydo not form Yany part of the present invention. .Howes/Ten, they ,are clearly described andV illustratedj inthe patents earliermentioned.

. VFrom theforegoing, nit.will be seen that I have provided 4an orienting `mechanism that may be quickly and readily built in or attached to ga standard type of button-attaching machine, so that snap fastenersas shownin the cro-,pending application andin the present application, may becorrectly positioned (oriented) on the way to the attaching station, and the insignia or trademarkwill be in the correct, readable position when fastened to its goods. Y V

Although the machine will operate in a rapid manner, the caps will always be properly oriented, as the length of. theserrated wall I3 and the length ofthe raised faceportion 20 with its plane face IB are greater thanthe circumference of the hub II, thus assuring that the notch I0 ofthe revolving capvwill at some time comeinto registry with the nger during the travel of the cap before it reaches the attaching station A.

Furthermore, in reality,` the notch quickly comes into registry with the finger 4 and atthis time the ear 4 will slightly press back the spring arm I5 and thus prevent any damage to the hub of the cap.

It will be understood that many slightchanges might be made without departing from the spirit `and scope of the invention. 1

Having thus described the same, what I claim as new and desire to secure by LettersPatent is: 1. In a snap fastener attaching machine, a tucke'r mechanism, means for operating the same, said tucker mechanism including a slide anda finger, saidnger being pivotally/mounted near its rear end, the forward portion of the nger being adapted to overlie and. contact with the under periphery of the snap fastener cap and the forward end of the finger to contact with the outer periphery of the hub and advance said cap, spring-pressed means associated with the tucker sliderto also engage the outer periphery ,only of the hub of the snap'fastener cap andthus cause the cap to frictionally rotate as the same is adciprocating tucker mechanism including a spring- 1' pressed flnger, the forward end of the finger being adaptedV to vcontact with the outer `periphery ofthe hub of the snap fastener for ad- It will .also be remembered that as the tucker l -slide depositsthe cap C on Vits attaching station v A, the cam 4b, contacting with the setscrew I', will slightly elevate the forward notched end of g the tucker slide and will thus prevent any undesired returning of the cap C which might otherwise happen. 1 1

. I have not shown all of the parts of the buttonvancing the same and thegsaid finger being normally in contact with the under peripheral survface ofthe snap fastenerymeans. for operating the tucker'mechanism, means for frictionally; engaginggthe outer periphery only ofthe hub of .the snap fastener for causing rotation of the same as it travels to the attaching station of the machine, and the said finger being also adapted to spring within the broken under surface of .the snap fastener when in registry' therewith yto thereby arrest the rotation ofthe snap. fastener and hold it in Vits oriented position during its travely to the attaching station. c y

3, Ina machine for attaching snap fasteners which latter have embossingon their outer faces Yand notched under surfaces in a certain definite relation to the embossing; an automatic reciprocating tucker mechanism including a springpressed finger overlying and resting n the under peripheral surface of the snap fastener and also adapted to contact with the hub of the snap fastener for advancing the same, means for operating the tucker mechanism, frictional means adjacent the tucker mechanism including a fixed wall and a spring-pressed movable wall both of which are in contact with the outer periphery of the hub of the snap fastener, the stationary Wall being provided With vertical serrations whereby the snap fastener is rotated as it is advanced. by the said finger, and said finger also snapping into said notch when in registry therewith to arrest the rotation of the snap fastener and thus properly orient the same during its travel to the attaching station.

4. In a machine for attaching snap fasteners which fasteners have embossing on their outer faces and grooves on their under surfaces in a certain, definite relationship to the said embossing;` tucker mechanism including springpressed means adapted to overlie and contact with the under peripheral surface of a snap fastener and the end of said means contacting with the outer surface of the hub of the said fastener, the said means being adapted to move the said snap fastener outwardly to an attaching station, means for frictionally engaging the outer periphery only of the hub of the snap fastener to cause the rotation of the same as it travels toward the attaching station, the said means being adapted to register within the aforementioned groove in the under surface of the fastener when in registry therewith to thereby arrest the further rotation of the snap fastener and hold it in a predetermined position during its travel to the attaching station, and means connected with the last-mentioned means for simultaneously removing the friction on said hub when said rotation is arrested.

5. In a snap fastener attaching machine, a tucker mechanism, means for operating the same, and tucker mechanism including a slide and a finger and said finger being pivotally mounted and adapted to contact with the hub of a snap fastener cap for advancing the same, means associated with the tucker slide for contacting with the outer periphery of the hub and adapted to frictionally rotate the snap fastener cap, the said finger arresting the rotation of the cap in a certain predetermined position, and means to remove the friction at the same time the nger arrests the rotation of the cap.

6. In a snap fastener attaching machine having an attaching station and a tucker mechanism, frictional means for engaging the hub only of the snap fastener to cause the same to rotate for a portion of its Way to the attaching station, means for arresting the rotation, and means for relieving the friction at the same time the rotation is arrested.

7. In a machine for attaching snap fasteners which latter have embossing on their outer faces and broken under surfaces in a certain definite relation to the embossing, a reciprocating tucker mechanism including a spring-pressed pivotal finger for advancing the snap fastener, means for operating the tucker mechanism, frictional means for engaging the hub only of the snap fastener for causing the rotation of the snap fastener as it travels to the attaching station of the machine and said finger being adapted to drop into said broken surface when in registry therewith to arrest the rotation of the snap fastener to thus orient the same during its travel to the attaching station, means for relieving the friction simultaneously with the snapping of the iinger into position, and means for elevating the forward end of the tucker finger as the snap fastener is deposited on the attaching station.

8. In a tucker slide mechanism, the sub-combination of a reciprocating finger for advancing a notched snap fastener to an attaching station, said finger being pivoted for a tiltable movement; together with means for frictionally contacting the hub of the snap fastener to cause rotation of the same at it advances to the attaching station, said finger overlying and contacting With the periphery and the hub of the snap fastener, said ringer being also arranged at its forward end to arrest the rotation of the snap fastener, said finger being provided with means to relieve the friction on the hub of the fastener at the same time the latter has ceased rotation, and said finger being provided with means to tilt the same to disengage it from the snap fastener when the snap fastener arrives at the attaching station.

FREDERICK H. PETERSON.

Images