US2456433A - Machine for applying fasteners to web material - Google Patents

Machine for applying fasteners to web material Download PDF

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Publication number
US2456433A
US2456433A US665251A US66525146A US2456433A US 2456433 A US2456433 A US 2456433A US 665251 A US665251 A US 665251A US 66525146 A US66525146 A US 66525146A US 2456433 A US2456433 A US 2456433A
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Prior art keywords
eyelet
arm
cam
guide
washer
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US665251A
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Carl H Lofgreen
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Equitable Paper Bag Co Inc
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Equitable Paper Bag Co Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • B31B70/8131—Making bags having interengaging closure elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/814—Applying closure elements to blanks, webs or boxes
    • B31B50/8142—Applying button-and-string or washer like closure elements

Definitions

  • This invention relates to a machine for applying fasteners of the button or washer type to a continuously moving web of material.
  • the web thereafter may be cut and folded to form envelopes and these fasteners are then used in connection with string attaching means to close the envelope flaps.
  • An object of the invention is to provide a ma chine of this character in which an endless web of paper or other suitable material may have such fasteners applied along the edge thereof at predetermined intervals.
  • a fastener of this type usually consists of a perforated disc or washer which lies on one face of the web and a reinforcing member which lies on the opposite face of the web, the two being secured together and to the web by a riveted eyelet.
  • the machine is so arranged with respect to the paper web to ⁇ which the fasteners are to be applied that the guided edge of the web passes between a pair of co-planar, rotary combination pick-up and riveting members or arms.
  • One of these riveting arms has means thereon adapted to pick up a washer into whose perforation an unriveted eyelet has previously been inserted.
  • the eyelet at that time has a headed end and an unheaded end.
  • the other of the arms has means thereon adapted to pick up a reinforcing member which has been previously perforated and then cut to size from strip material which may be appropriately fed into the machine for such purposes.
  • the two arms are mounted on independent shafts and are rotated in synchronism so that once during each revolution of these arms, they come in to register on opposite vsides of the web.
  • the washer carried on one arm and the reinforcing member carried on the other arm are in alignment on opposite sides of the web and the unheaded portion of the eyelet carried by the washer pierces the web and receives the reinforcing member.
  • the unheaded end is then peened or bent over by an anvil part on the arm carrying the reinforcing member,
  • Means are provided in the machine to feed the perforated Washers one by one from a supply source to a point at which an eyelet having an such other objects .as may hereinafter appear', ⁇
  • Means are also provided in the machine for shearing reinforcing members from a roll of strip material to proper size, for perforating each reinforcing member prior to its severance from the strip and for delivering the perforated reinforcing member to a pick-up point at which it may be picked up by the pick-up means of the other of the two co-planar rotary arms, and then carried by the latter pick-up means for union with the web and the washer.
  • Means are also provided in the machine for synchronizing the operation of various movable parts thereof so that a washer-eyelet combination and a reinforcing member will be delivered once during each revolution of the respective co-planar arms to the appropriate pick-up means of the latter for union with the Web.
  • a principal object of the invention is to provide a unitary machine lcapable of effecting the foregoing union of Washers and reinforcing ⁇ members with the moving web at spaced-apart points.
  • a further object of the invention is to provide a machine that may be operated continuously and rap-idly so that washers and reinforcing members constituting the fasteners may beA applied to a moving web of sheet material on a mass production basis.
  • Still another object of the invention is to provide means for synchronizing the operation of various of the movable parts of the machine so that a complete cycle of operations occurs once during each revolution of the co-planar rotary arms.
  • a further object of the invention is to provide novel means for combining each perforated washer with an eyelet having aheaded end and an unheaded end prior to their union with the moving web and a reinforcing member.
  • Yet another object of the invention is to provide novel means for preparing perforated refinforcing'- members lor reinforcements in the machine prior to the union of each such reinforcement with a washer and the moving web.
  • Fig. 1 is a front elevational;vievL of: the maY chine;
  • Fig. 1a is an enlarged fragmentary section" taken along line Ia-Ia of Fig. 2 illustrating a detail? of tliewasher feeding mechanism;
  • FIG. 2'- is a' partial end elevational- View" of the' machine" seen from' the right'handI ⁇ 'sideof Fig;
  • Fig. 3 is a'l partialllendi elevational: view ofthe machine-seen from the left handside'ofliig. 1?;
  • F'igf.v 5 issa;4 partial* vertical section' taken along line 5-5of"Fg. 1E and illustrating a part of the' g;
  • Fig. 6 i'sa partial vertical ⁇ - section taken along' line Bet-8' of Fig; 1 amdillustrati'n'g' parts of tlle ⁇ - eyelet-Washer receiving mechanism and controls arms; K K n Y Fig. If is a partial verticalsection taken along of the reinforcement perforati'ngj mechanism-g Fig. 8 ⁇ -is a p'artialvertical? section ⁇ - taken along' line 8 ⁇ -8 ⁇ - of Fig. I and ⁇ illustrating thereinforce-- ment-severing mechanism;
  • Fig. 9 is-a partial ⁇ y vertical section'v taken along' line geeof" Fig'. 1" and illustrating apart* used for receiving a perforated' reinforcement andY pti-- sltioriing it' for pick'bup.- by' the" pick-ur 'means of one of the co-planar rotary' arrris;
  • Fig.- lOf ist a partial longitudinal 'and' vertical sectionl taken* along' line I 0 ⁇ -I llofFig. andl illus-4 trating the' parts constituting the stripfeeding; perforatinggfsevering' and'ireinforce'ment receiving anli positioning means;
  • Fi'g'r. 11i isa a ⁇ partial longitudinali an'd' vertical sectionitakerraiongline lil-H ofFig. Ziand'illus trating' parts: constituting the washer" feeding mechanismttlie means-forfcombining such Wash-- ers' with eyelets, the washer-eyelet combination receiving and positioning means an'd the@ mechanisIri-for ⁇ transferring' such combinations to the latter: means Fig. 12 isa f fragrnentary-A section'J similar to' that' of. Fig. 1'1' ⁇ showing parts thereof ina' different position of operation; v
  • Fig.' 13 isasectiorrk similari toiFi'g; 1-'1'- showing some of. the parts thereof'. in still. another position of' operation
  • Fig'. 14'v is enlarged? rear' elevational View of' the co-planar pick-upV ⁇ andriveting armsthaty serve for. uniting' the washers; the reinforcements and the" eyelets withy the moving-1 Web,. the two arms being' showniin yalinedi or uniting positioni;
  • Fig. 15i is af vertical' sectional viewtakenalongl linesfI'5-'-l"5'of.Fig. 14;.
  • Fig; 16 is a1 verticali sectional.i vlev'vftaken along lines' I 6'l6"of' Fig; 15';;y Y
  • Fig. 17 is an elevational View of the lowermost co-planar arm seen from the right of Fig. 16;
  • Fig. 18 is a diagrammatic illustration of the co-planar arms and their respective positions relative to the moving web just prior to the union oi? tli'ewaslier; reinforcement andeyelet with the web;
  • Fig. 19 is a similar diagrammatic View of these arms at the moment of union
  • Fig. 21 is a' partial vertical section and elevationalview takenalong lines 2 4 2! of Fig. 20;
  • Fig. 22 is a fragmentary View similar to that oi' Fig. 20"showing the position of parts when an unriveted eyelet has been inserted into one of the washers-g ⁇ Fig. 23is a'- partial vertical section and eleva- ⁇ tionalview taken-along lines 213-23lof Fig.' 22;
  • Fig. 24'- isa fragmentary View similar to those of Figs. and 22" showing ⁇ a position of parts intermediate -thoseofFigs'- 2'0 and ⁇ 22;
  • Fig. 25 is a partial vertical section and" elevational' view' taken along ⁇ r lines 25-25 of" Fig. 24;
  • Fig: 26"- is a' partial vertical sectiontaken along lines 2li-26'v off Fig. 1i and'illustratinga part cfI the mechanism' for inserting' unrivete'd eyelets intoy thewashers; and -its operating elements;
  • Fig. 27 is'apartial Vertical section and eleva-A tional-View takenfalong'lines Z'lL-Z'T ofv Fig. 1 and' illustrating m'eansifor oscillating' the eyelet feed'- ing mechanism;
  • Fig. 28 is an enlargedfpartial' transverse vertical secti'onoff the-upper end or receiving endA of the eyelet feeding' mechanism and includes the eyeletA containing hopper' and associated mechanism fordelivering the unriveted eyelets to the'Y eyelet 'feedingmechanism Fig; 29 isY anielevationalf viewof said upper or receivingl en'dv of saidl eyelet feeding' mechanism vlewedffromlthe right of Fig. 28 with the hopper removed" Figi. 30 is alsectional viewt'aken along lines 30e-3-of Fig; 29 ⁇ and'illustrating an eyelet delivered to2 the receiving end ofv the eyelet feeding mechanism; and
  • Fig.1 3'1 is af fragmentary plan View of an envelope madefromapartof aA webto which wasliersg. eyelets and reinforcements have been applied. a-t' regular" intervals on the machine.
  • Ilhe' machineA off thislinventiony can be subdivid ⁇ ed ⁇ into a. number' of elements or units, namely-J ('-1;)f a'luxiitingunitin whichy the Washers C, reinforcement members'l lit' andi eyelets E are united Withltheftraveling paper WebfW-by meanson the cc'eplanar.'arms, (-2) a; reinforcement) forming and feedingl unit.
  • the washers' C' generally" are perforated and circular in plan and; are ⁇ made of stii paper or' other suitable materiali.
  • Thef reinforcements R are perforated centrallyl and-may have any desired shape iniplan View; Herein they are shovvnv as of square or! rectangular shape.
  • the strip- S'v4 from' whichd 75 they are formed in the machine is stiff paper or other suitable material.
  • the uniting unit Referring to the drawing and rst to Figs. 1, 2, 3 and 14-18 inclusive, l@ denotes frame parts. ⁇
  • a main drive shaft II is rotatively supported in bearings I2 carried by the frame parts I0.
  • a driving member such as sprocket wheel I5 is secured to the drive shaft I I.
  • a spur gear I4 likewise, is secured to this drive shaft II.
  • the drive shaft II projects outwardly of a frame part Ill and one of the rotary co-planar arms or members I5 is secured to this portion of said shaft I I, for example by the locking bolt IB (Fig. 15).
  • the arm l5 constitutes the washer and unriveted eyelet carrying arm.
  • This arm I5 has a longitudinally extending bore I'I (Fig. 15) in which a tubular sleeve i8 is mounted.
  • This sleeve i3 projects outwardly of the operating end of arm I5 and its end Ia serves as a seat for the headed ends of the unriveted eyelets E as will bel presently described.
  • the inner end of the sleeve bears against the annular abutment or shoulder I9.
  • a spring actuated plunger 20 is slidably guided in the sleeve I8 and in an extension Ila. of bore Il.
  • This plunger has a pointed or centering end ZI which normally is urged outwardly of the sleeve end 53a by the spring 22.
  • a member 24 is attached to the plunger 20 and extends outwardly of the arm I5 through a slot 25 terminating in a cam follower 26 for a purpose presently to be described.
  • a slide member 3i) (Figs. 14 and 16) is carried on a longitudinal face of the arm I5.
  • This member has longitudinally extending slots 3l so that it can be guidedly moved longitudinally over the said face of said arm relative to the attaching members or pins 33 which are secured to the arm l5 and which extend through these slots 3l.
  • a pair of pick-up claws 35, 35 (Figs. 1, 17 and 14-16) are pivotally supported at 3l, 38 (Figs. 1 and 17) from the slide member 35. Springs 39, 40 tend to rotate these claws toward each other about their pivotal supports 3l, 38.
  • the pick-up claws 35, 36 have oppositely facing cam surfaces 35a, 36a which cooperate with a cam pin 4I carried by the arm I5 which projects through a slot 42 in the slide member 33.
  • the slide member 3D normally is urged by a spring 43 in a direction away from operating end K of the arm I5.
  • the opposite ends of the spring 43 are attached respectively to a member 44 xed to the slide 30 and to a member 45 xed to the arm I5.
  • the movement of slide member 35 toward the operating end K of arm I5 and counter to the action of spring 43 is effected by a crank lever 48, one of whose ends is pivot-ally secured at 49 to a flange 50 extending from the slide member 30.
  • the other end of the lever is fixed to a shaft 5
  • a second crank lever 53 is fixed to the shaft 5I.
  • a cam follower or roller 54 is rotatably secured to 6 other hand, when the slide member 30 is moved longitudinally toward the operating end K of the arm I5 under action of the cam follower 54 and crank levers 53 and 48, the high portions of the said cam surfaces 35a., 36a, clear the pin 4I thus permittingthe springs 39 and 40 to rotate the claws 35, 36 toward each other to the limit permitted by the high portions of the cam surfaces 35a., 35a.
  • the cam pin 4I is so positioned relative to the cam faces 35a, 36a of the claws 35, 35 that in the retracted position of the spring 43, as shown in Fig. 17, these claws 35, 35 are spread apart with their overhanging ends 35h, 36h clear of the operating end K of arm I5 (Figs. 15 and 16). This is the release position of the claws 35, 36.
  • a cam 58 (Figs. 1, 3 and 6) is secured adjustably to a frame part I5 about the shaft Il.
  • cam follower 54 which serves to reciprocate the slide member 30 on the arm I5 operates on the outer surface of this cam 58.
  • the latter in addition has a face cam surface 58a on which the cam follower 26 of the plunger 2li operates (Figs. l, 3, 6, 14vand 15).
  • the cam 58 actuates the cam follower 54 as follows: Starting from a point in the orbital travel of the operating end K of the arm I5 just beyond its uppermost or uniting or 12 oclock position in the clockwise direction of rotation of Figs. 3 and 6 at which time the spring 43 has retracted the slide Bil to its furthermost point away from the operatingy end K of arm I 5, the cam 58 moves the follower 54 to shift the slide 3B outwardly toward said operating end K and the slide reaches its extreme outermost position just prior to the arrival of said operating end K at its lowermost or pick-up or 6 oclock position.
  • the overhanging claw ends 35D, 36h then overlie the operating end K of arm I5 in a position to pick-up a washer C and unriveted eyelet E combination from a delivery means presently to be described, and remain in this position until the arm I5 has moved past its said six oclock position.
  • the cam 53 then drops away from the cam follower 54 to permit the spring to retract the slide 35 from its described outermost position and the overhanging claw ends 35h, 36h move toward the operating end K of arm I5 and act to press the washer and unriveted eyelet combination picked up by the claw ends 355,' 36h against the said operating end K of said arm.
  • This anvil member ISS has :an-upstanding nipple iii-l for :purposes -to .be presently described.
  • the 4arm E5 is equipped with a reciprocably movable slide member 68 whichis-mounted thereonlin the same-'Way asslide-memberl is 4mounted on the arm l5.
  • ripa-ir of-pick-upclaws lllg'll (Figs. land 'i4-'16 inclusive) are pivotally supported at l2, .13.from the slide emember C58.
  • crank levers-8h82 The movement of the slidemember 58 counter tothe spring itis-effected by crank levers-8h82 both fixed to the-shaftft@ Whichin'turniis rotatably supported 'from a flange partlhof .the:arm 35.
  • the crank level-.3l is pivoted tothe pin-membenl-9 carried ⁇ bya ilange part 13a :xed to the slide .member ES.
  • the crank lever 82 has ascam follower orroller: secured rota-tively thereto.
  • a cam' (Figs. l, 3 and@ is secured adjustablyitothe'frame HJ about'theshaftll.
  • the cam follower. orroller 85 whichserves'to reciprocatethe slide member .G8-operates on theouter surface of this cam. "This-cam vfunctions tooperatefthe cam roller 85 to eiect reciprocal moti-on of :the slide member 68 that is similar to that imparted by cam 58 to slide member 38 and for similar purposes.
  • the arms 15 and 165 rotate in synchronism. They are arranged to be cci-planar and are so positioned on their respective shafts il and 60 that they become vradially aligned with their respective operating ends in proximity as shown in Fig. li'once during each revolution of the respective shafts l l and. At this time, the paper web W toW-hich the Vfasteners are to be applied lies between the two arm ends as seen diagrammatically in Fig. i9. Some time before the arms l5 and fc5 arrive at this uniting position of Fig. 19, one -must Abe vloaded with a Washer C and unriveted eyelet E and the other with a reinforcement'memberl.
  • the arm 65 is adapted to bring the reinforcement member Rtorthe uniting (position While the arm H-'is adapted tobring'the combination of Washer C Vandunriveted eyelet'E to said uniting position. Separate means are provided for so loading the respective arms kl5 fand 65 once during each revolution of the latter.
  • Themeinforoement, forming, feeding and loading means (Figs. 1-5 inclusive and 8-10 inclusive)
  • the reinforcement members R that are united with the Washers or collars C and Web W' by the rivetin,r of eyelets are in the embodiment l ironia-suitable source such as a roll or the like (not shown) is threaded around a curved end Silcof a guideSU (Fig. 1G), through a guideway 9i underlying the guide Sil and between a pair of rollersQZ, 93, and thence through a continuation of the jguideway 9i to an outlet end of the latter.
  • the guidewayl is formed in the upper surface of aplate'tla'that is supported on the tranverse frame lila.
  • the guide B overlies the guideway 9i and serves to retain the strip S Within the latter.
  • 'The roller92 is supported on a stud shaft Which vin ⁇ turn is carried between a pair of brackets '95 (Fig. 5) mounted on the upper surface of the .guide 90.
  • the guide 9i! is appropriately slotted at 9G (Fie. 10) so that the surface of the roller 92 which'is appropriately roughened or'knurled'for purpy ses presently to be described may engage the upper surface of strip S.
  • the feed roller 92 is rotated periodically step by step for part of a revolution sufcient to move the strip S a distance equal to the desired length of one of the reinforcements R.
  • This step-bystep rotation is effected through the agency of a ratchet wheel
  • 05 is supported pivotally on a crank arm
  • 4 is operated by an eccentric or cam
  • the spring I0 maintains 'contact between the surface of cam
  • overlies these holes. This punch
  • is secured to the plunger block
  • 22 projects upwardly of the latter through an opening
  • 28 normally tends to urge the block
  • 28. is effected in a convenient manner.
  • 32 is pivotally supported intermediate its ends at
  • 32 engages the plunger block
  • 46 is rotatably supported by the slide member
  • 48 is fixed to the shaft 50 in alignment with the cam follower or roller
  • 50 is secured to the punchplunger block
  • This knife operates through an opening in plate over the outlet end4 of the guideway 9
  • This sheared off portion is one of the reinforcements R that is to be applied to the moving web W of material.
  • 60 surrounds a portion of plunger
  • 00 tends normally to urge the block
  • 52 lies in alignment with the outlet end of guideway 9
  • 52- are'co-planarwith the rotating arm sothat thefpick-upfclaws 10 and 1
  • 53 ismovable vertically and downwardlyy inlopposition to spring.,
  • 66 (Figs. 1 and 5). isgpiv., otally secured at
  • 13 is kpivotall'y supported. at.
  • 1 is substantially. 6.o.- pl'anar with the eccentric or cam
  • 18 whose opposite ends. are secured respectively t'o ⁇ the crank levers '
  • the latter 'thus serves the dual purpose of controlling the.
  • the washers C each have an unrveted eyelet E combined therewith by insertion 0f the* headedfendof thesaid eyelet.E throughthe central perforation of the washer and said combination of. washer and eyelet is fed to a delivery member. for pick-up bythe overhanging end 35h, 35h of.r thefpick-up-.claws 35, 3E. ofA the rotary arm-
  • the pick-up point lies at whatl may beter-med the six oclock position of the rotary-arm
  • the mechanism for effecting the; combination of washers C and unriveted eyelets Eyand the delivery of such combinations one by.- one to the.A said: pick-up point will now be de,- scribed.
  • 84 extends only iol: a shortlenethoftheheightoithis pile P and in order to maintainthepile E inerect position above the. tubular. member
  • 88 terminates within the tubular. member
  • 82 has a longitudinally extending guideway
  • 81' is arranged to' underlie the tubular member
  • 81 has a depth that is only slightly greater than the thickness off a single washer C and a width only slightlylarger than the diameter of' said Washer C so that only one of said washers C at a time mayv enter onto the guideway from thelower end of the pile P in tubular member
  • 98' (Figs. 1r and 13) islreciprocallymovablein the guideway
  • the stroke of this slide member issuch that its leading In. such movement the transfer slide member
  • is slidably supported onv a pair of: horizontally extending guide. rails
  • a pair of cranks 222 (Figs. 1a and 2) are fixed to the stub shaft i955 and these cranks in turn are pivotally connected at 223 (Fig. la) to a coupling member 2532.
  • in turn has a connecting rod 225 attached to one end.
  • the opposite end of the connecting rod 205 is secured to a coupling member 206 and the latter is secured pivotally at 220er to a cross bar 201 (Fig. 2).
  • the cross bar 201 is slidably supported by the sleeves 228 from a pair of vertically extending guide rods or rails 229 which latter are suitably carried by the fixed supports 2m and 2
  • 0 is flXed to the uprights 252 while the support 2
  • 2 are carried on the guide rails 0r rods 209 between the support 2! 2 and the lower ends of the sleeves 208, serving to urge the sleeves and with them the cross bar 2&3? in a vertical direction away from the support 2552.
  • Reciprocal mot-ion of the cross bar 201 on its guide rails or rods 222 is effected by a cam or eccentric 2M (Fig. 2) which is xed to the shaft 60.
  • 5 is rotatively supported on a stub shaft 2i@ which latter in turn is carried between a pair of bracket members 2
  • il the cross bar 221 is moving from its uppermost position downwardly in opposition to the springs 2
  • a single down and return stroke of the cross bar 221 occurs for each revolution of the shaft
  • This reciprocal motion of the cross bar 201 is translated into corresponding reciprocal motion of the transfer slide member
  • the stroke of the cross bar 201 is, of course, sufcient to move the leading end
  • the eyelets E are delivered for combination with the washers C at the combining point just mentioned through an eyelet guide 220 (Figs. 2 and 3).
  • the upper or receiving end of the eyelet guide 222 is arranged in conjunction with an eyelet containing hopper 22
  • the hopper 224 and the eyelet guide 220 are secured to a bracket 222 which is pivotally supported at 223 to the frame parts iii.
  • the eyelet guide 222 is oscillated about the pivot point 223.
  • a cam 224 is fixed to the main drive shaft (Figs. l and 27).
  • a forked guide member 225 has its tines 225er, 22519 slidably engaging opposite sides of the main drive shaft adjacent to the cam 222.
  • the guide member 225 carries a rotatably supported cam follower 226 which engages the cam 221i. Engagement between the cam follower 226 and the cam 224 is maintained by the action of gravity.
  • suitable spring means (not shown)1 may be utilized to maintain such engagement.
  • the guide member 225 is pivotally connected at 221 (Fig. 27) to a connecting link 228 which latter in turn is pivotally connected at 229 to a coupling member 230 which is secured to the eyelet guide 228.
  • each rotation of the main drive shaft serves through the agency of the cam 224, the guide member 225, the cam follower 226, connecting link 228 and coupling member 23@ to effect a single reciprocatory oscillation of the eyelet guide 220 about the pivot 223 as a center so that the delivery end 220e of said eyelet guide 220 may be appropriately moved to effect delivery one by one'of the unriveted eyelets E for combination at the combining point with each successive of the washers C delivered to said point by said transfer slide member.
  • This rportion 2320, of the spring is adapted to yield sufficiently to permit removal of the said unrivited eyelet E from the notch 23
  • the eyelet guide 220 is adapted to deliver the unriveted eyelets E so that their unheaded ends when they arrive at the notch 23
  • a pair of transversely movable spring actuated jaws 235, 236 are positioned, suitable lateral recesses 231 and 238 being provided for this purpose in the upper table plate
  • the adjacent faces 2350., 236e of these jaws 235, 235 are oppositely slanted so that when the jaws are in abutment a V-shaped recessk 239 is formed by them. rThe apex of the recess overlies the center of the guideway
  • normally urge the respective jaws 235, 236 toward ea-ch other.
  • a reciprocally movable plunger member 250 is z supported in alignment with the V-shape notch measured to permit it to be inserted through the unriveted hollow eyelets E from their headed ends.
  • a of this portion may be pointed to facilitate such entry into the hollow unriveted eyelets E.
  • the plunger 250 is carried by the cross arm 252 (Fig. 26) and the latter in turn is slidably movable on the guide rails 253 which are supported vertically from a part 2515 (Figs. l, 20, 22 and 24) carried by the upper plate l.
  • the springs 255 which are mounted on the guide rails 253 between the cross arm 252 and the part 2532i tend normally to urge the cross arm 252 and with it the plunger member 250 upwardly so that the pointed end 25m lies a distance above the part 254.
  • Reciprocal motion of the cross arm 252 on the guide rails 253 and consequently reciprocal motion of the plunger 250 is effected by a cam 251 '26.25, and the tines 2596i, 260i? of these guides eX- tend, on opposite sides of the shaft and function' to. guide the vertical motion of the guides 26111.
  • the latter4 areS secued' to the cross arm 252.
  • the-springs*255'rnaintain the cam follower 258 in engagement with the cam 251. Rotation ot the cam 251l with the shaft I thereby effects reciprocal motion off* the plunger member 250.
  • the cam follower 226 ⁇ operating on the cam 225 moves on a portion thereof which fails to impart any motion to the eyelet guide 220.
  • the plunger operating cam follower 258 begins to move on apart of the cam 251 which movesl the plunger 25
  • eyelet guide oscillating cam 225 begins. to operate the eyelet guide to move its delivery end 22Go clear of the plunger 25I as shown in Fig. 25.
  • a ⁇ cam wedge 285v (Figs. 11-13) is pivotally supported intermediate its ends at 285 from a fixed bracket 231 which is secured to the member plate
  • the wedge 285 lies in the path of travel of a laterally extending pin 219a fixed to the block219 sozthat as the blocky 219 is moved in its retraction stroke, this pin 219@ engages the under face of the wedge 285V which widens inthe directionoi the-retraction stroke and such engagementisshown in Fig. l2.
  • This engagementy causes. the block. 2.19- carrying the pusher @stones l? pin 218 to be rotated suioientlyaboutits pivot 28
  • the .cam wedge 285 is soyadmeasured in length that the laterally extending pin g1g@ rides off the lower face .of the came wedgeti just ⁇ prior to the time that the block-219 ⁇ reaohesits rear most position asshoivn in Fig. ,1;3.
  • the spring .289 Whichis fixed at oneendof 'slide block -
  • the pin 2 19a rides voverthe-.top face :oi the k.ca-n1 wedge 285 so that the pusher .pin -zflwremains at its high level shown in Fis.y 1,3; and. feeds combined Washer C. landnnriveted eyelet Eroi-s Wardlv in the-suidewavll and delivers it vinto the slot 212 of the reoevingiaw blo.ok.,2;1
  • Thelateraliiange .286 serves as a limit stop for thelovver .endl of :jaw ⁇ block 221i and when the latter-rests upon yit the jaw slot 212 is :in alignment lWithrthe outlet ⁇ end .of the guideway
  • the vplate'-.mernloer .
  • the guide 25.0- CFig. ⁇ 26) A ⁇ carries a laterally extendingfpin :398. ⁇
  • (Fig. l) is pivotally secured .to .thislpin and one end ,ora :oonnectingrod '.32isrseoured to the coupling rnernheri.y
  • the latter in turn is secured to.an1end of a lever 305. .
  • This .lever .3&5 is.
  • the cam 2151 is so arranged on the drive shaft kIll-'that thefblcck 21
  • This pick-up position in the embodiment shown, may .conveniently be described as the 6 VQclool; position of thearm l.- 1
  • the unriveted eyelets E. are initially .dumped hapllzardly into the ⁇ hopper 22
  • the upper or receiving end 2281i of the eyelet guide 22A@ terminates within the hopper along one Wall thereof as shown in Figs. 28 and 29.
  • This terminalend 228i) has a substantially Veshaped notch ⁇ 22de and this notch lies in vspaced relation from a -lorloeliy .sie Awhich also is carried on the same ieee 0f the hopper 22
  • a bleek overlies the notch 220e.
  • the block .SIS is provided on its iront face with a plurality of vertieallyextending grooves 3
  • @ is supported WithinA the hopper on a transverseli7 ⁇ extending shaft 32@ journaled inopr.- pusiste-:side walls of the hopper 22
  • This brush member has sets of radially extending bristles 3&9@ which are admeasured in radial length to engage the lower curved Wall 22m of the hopper and when the brush is rotated clockwise, as seen in Fig. 28, the bristles 31950: serve to sweep eye.-
  • ] is suitably driven by a sprocket Wheel 325 shown in Fig. 3 whh is iixed to a ⁇ portion ofthe shait 32
  • This sp1-toolset may be coupled through a chain 32l5to ahy-.Convenient sourceof motive power as sprocket 321,.
  • Any Aother conventional means ⁇ for feedingA the eyelets ato the eyelet guide 22.@ may be utilized.
  • the hopper is mounted .on ⁇ the pivoted bracket l22.2 ythat supports the .eyelet Aguide 221B so that -itis agitated to some .extent by the reciprocal-oscillatory mo-V tion imparted to the leyelet guide 22) through the agency ⁇ oi the cam 252.41 as is previously described.

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  • Sewing Machines And Sewing (AREA)

Description

' (L. H. LOFGREEN MACHINE FOR APPLYING FASTENERS To WEB MATERIAL Filed April 26, 1946 Dec. 14, 1948.
11 Sheets-Sheet l INVENToR. (k1/m /7 UFG/Pff/v ec. 14, 1948. c. H. LOFGREEN 2,456,433
MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL l Filed April 2e, .194e 11 sheets-sheet 2 Tiff INVENToR. 64I/Q H 0r6/355V c. l-L LOFGREEN MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL Filed April 2e, 1946 I Dec. 14, 1948.
11 sheets-sheet 3 R. o Tf N NG im H. H
ATTO/@vins Dec. 14, 1948. c. H. LOFGREEN 2,456,433
` MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL Filed April 2e, 194e 11 sheets-sheet 4y Dec. M, 1948. c. H. Lol-GREEN MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL 11 Sheets-sheet 5 Filed Alril 2e, 194e Dec. 14, 1948. c; H. LQFGREEN MACHINE FOR APPLY'ING FASTENERS TO WEB MATERIAL Filed April 26, 194e l1 Sheets-Sheet 6 INVENTOR. L4/PL bf 0r6/Pfam 4:/14470 ATMP/MVS v Dec. 14, 1948. c. H. LOFGREEN MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL Filed April 2e, 1946 11 Sheets-Sheet '7 Dec; 14, 1948. c. H. LOI-'GREEN MACHINE FOR APPLYING FASTENERS-TO WEB MATERIAL Filed April 2e, 1946 11 Sheets-Sheet 8 b D l INV ENTOR /2 0r6/Pff I b BY ATTORN EYS Dec. 14, 1948. c. H. LOFGREEN 2,456,433
MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL Filed lApril 26, 11946 v l1 Sheets-Sheet 9 23 v 36' f if 237 ,Z/yzz'a 76,2'
-I-aEL 240 fl-27 l TiclEZ. 1-1:13a. l zff I if f 23)/ 220 @zzp v INVENTQR f@ Y www ATTORNEYS Dec. M, w48. l C, H @FGREEN 2,456,433
MACHINE FOR APPLYIG FASTENERS TO WEB MATERIAL Filed April 26, 1946 11 4sheets-sheet 1o INVENTOR @QPL /7/ af-@Pff/V ATTORN EYS Dec. 11, 1918. Q'H, LOFGREEN 2,456,133
MACHINE FOR APPLYING FASTENERS TO WEBMATERIAL Filed April 2'6, 194e 11 shams-sheet 11 INVENTOR (Z4/PL /7 offPff/v ATTO-RN EYS Patented Dec. 14. 1948 MACHINE FOR APPLYING FASTENERS TO WEB MATERIAL Carl H. Lofgreen, New York, N. Y., assignor to Equitable Paper Bag Co. Inc., Long Island City, N. Y., a corporation of New York Application April 26, 1946, Serial No. 665,251
18 Claims.
This invention relates to a machine for applying fasteners of the button or washer type to a continuously moving web of material. The web thereafter may be cut and folded to form envelopes and these fasteners are then used in connection with string attaching means to close the envelope flaps.
An object of the invention is to provide a ma chine of this character in which an endless web of paper or other suitable material may have such fasteners applied along the edge thereof at predetermined intervals. A fastener of this type usually consists of a perforated disc or washer which lies on one face of the web and a reinforcing member which lies on the opposite face of the web, the two being secured together and to the web by a riveted eyelet.
The machine is so arranged with respect to the paper web to` which the fasteners are to be applied that the guided edge of the web passes between a pair of co-planar, rotary combination pick-up and riveting members or arms. One of these riveting arms has means thereon adapted to pick up a washer into whose perforation an unriveted eyelet has previously been inserted. The eyelet at that time has a headed end and an unheaded end. The other of the arms has means thereon adapted to pick up a reinforcing member which has been previously perforated and then cut to size from strip material which may be appropriately fed into the machine for such purposes. The two arms are mounted on independent shafts and are rotated in synchronism so that once during each revolution of these arms, they come in to register on opposite vsides of the web. When in register the washer carried on one arm and the reinforcing member carried on the other arm are in alignment on opposite sides of the web and the unheaded portion of the eyelet carried by the washer pierces the web and receives the reinforcing member. The unheaded end is then peened or bent over by an anvil part on the arm carrying the reinforcing member,
thereby securing the Washer and reinforcingv member to the web on opposite sides thereof. The web moves continuously and its surface speed is kept the same as that surface speed of the operating ends of the co-p-lanar rotary arms at the time that the latter become aligned for the fastening operation just described. The united washer and reinforcing member are released by the respective pick-up means and move away from the machine with the web.
Means are provided in the machine to feed the perforated Washers one by one from a supply source to a point at which an eyelet having an such other objects .as may hereinafter appear',`
unheaded end and a headed end is inserted into the washer perforation and thereafter to move such washer-eyelet Acombinations one by one to a pick up point where such vcombinations may be picked up successively by the pick-up means of one of the said rotating arms. Means are also provided in the machine for feeding the said eyelets from a hopper to the said point at which they are combined with the successive washers. Means are provided at said point for inserting the eyelets into said washers as just described.
Means are also provided in the machine for shearing reinforcing members from a roll of strip material to proper size, for perforating each reinforcing member prior to its severance from the strip and for delivering the perforated reinforcing member to a pick-up point at which it may be picked up by the pick-up means of the other of the two co-planar rotary arms, and then carried by the latter pick-up means for union with the web and the washer. Means are also provided in the machine for synchronizing the operation of various movable parts thereof so that a washer-eyelet combination and a reinforcing member will be delivered once during each revolution of the respective co-planar arms to the appropriate pick-up means of the latter for union with the Web.
A principal object of the invention is to provide a unitary machine lcapable of effecting the foregoing union of Washers and reinforcing `members with the moving web at spaced-apart points.
A further object of the invention is to provide a machine that may be operated continuously and rap-idly so that washers and reinforcing members constituting the fasteners may beA applied to a moving web of sheet material on a mass production basis. i
Still another object of the invention is to provide means for synchronizing the operation of various of the movable parts of the machine so that a complete cycle of operations occurs once during each revolution of the co-planar rotary arms.
A further object of the invention is to provide novel means for combining each perforated washer with an eyelet having aheaded end and an unheaded end prior to their union with the moving web and a reinforcing member.
Yet another object of the invention is to provide novel means for preparing perforated refinforcing'- members lor reinforcements in the machine prior to the union of each such reinforcement with a washer and the moving web.
yTo the accomplishment of the foregoing-and in the scope of the claims without disgressing.
from the invented idea.
In the drawings in which similar reference characters denote corresponding parte and ini which sectional views are seen ih' the direction' of the arrows on various of the section lines:
Fig. 1 is a front elevational;vievL of: the maY chine;
Fig. 1a is an enlarged fragmentary section" taken along line Ia-Ia of Fig. 2 illustrating a detail? of tliewasher feeding mechanism;
2'- is a' partial end elevational- View" of the' machine" seen from' the right'handI` 'sideof Fig;- Fig. 3 is a'l partialllendi elevational: view ofthe machine-seen from the left handside'ofliig. 1?;
Fig. liii'sa*partialvertical'sectiontaken along' li'n'e` @L42 of Fig.' 1` and illustratinga' pa-rt' of the mechanism usedfor operating'the r'einf'orcementv delivery/means; A y
F'igf.v 5; issa;4 partial* vertical section' taken along line 5-5of"Fg. 1E and illustrating a part of the' g;
stripfee'd'ing mechanism;
Fig. 6 i'sa partial vertical`- section taken along' line Bet-8' of Fig; 1 amdillustrati'n'g' parts of tlle`- eyelet-Washer receiving mechanism and controls arms; K K n Y Fig. If is a partial verticalsection taken along of the reinforcement perforati'ngj mechanism-g Fig. 8^-is a p'artialvertical? section`- taken along' line 8`-8`- of Fig. I and` illustrating thereinforce-- ment-severing mechanism;
Fig. 9 is-a partial`y vertical section'v taken along' line geeof" Fig'. 1" and illustrating apart* used for receiving a perforated' reinforcement andY pti-- sltioriing it' for pick'bup.- by' the" pick-ur 'means of one of the co-planar rotary' arrris;
Fig.- lOf ist a partial longitudinal 'and' vertical sectionl taken* along' line I 0`^-I llofFig. andl illus-4 trating the' parts constituting the stripfeeding; perforatinggfsevering' and'ireinforce'ment receiving anli positioning means;-
Fi'g'r. 11i isa a` partial longitudinali an'd' vertical sectionitakerraiongline lil-H ofFig. Ziand'illus trating' parts: constituting the washer" feeding mechanismttlie means-forfcombining such Wash-- ers' with eyelets, the washer-eyelet combination receiving and positioning means an'd the@ mechanisIri-for` transferring' such combinations to the latter: means Fig. 12 isa f fragrnentary-A section'J similar to' that' of. Fig. 1'1'` showing parts thereof ina' different position of operation; v
Fig.' 13 isasectiorrk similari toiFi'g; 1-'1'- showing some of. the parts thereof'. in still. another position of' operation Fig'. 14'v is enlarged? rear' elevational View of' the co-planar pick-upV` andriveting armsthaty serve for. uniting' the washers; the reinforcements and the" eyelets withy the moving-1 Web,. the two arms being' showniin yalinedi or uniting positioni;
Fig. 15i is af vertical' sectional viewtakenalongl linesfI'5-'-l"5'of.Fig. 14;.
Fig; 16 is a1 verticali sectional.i vlev'vftaken along lines' I 6'l6"of' Fig; 15';;y Y
Fig. 17 is an elevational View of the lowermost co-planar arm seen from the right of Fig. 16;
Fig. 18 is a diagrammatic illustration of the co-planar arms and their respective positions relative to the moving web just prior to the union oi? tli'ewaslier; reinforcement andeyelet with the web;
Fig. 19 is a similar diagrammatic View of these arms at the moment of union;
Fig. 20-is-afragmentary partial plan and sectionalfvievf of the terminal or delivery end of the eyelet feeding mechanism showing the position o'f parts'just' prior tothe insertion of an unriveted eyelet into one of.' the Washers;
Fig. 21 is a' partial vertical section and elevationalview takenalong lines 2 4 2! of Fig. 20;
Fig. 22 is a fragmentary View similar to that oi' Fig. 20"showing the position of parts when an unriveted eyelet has been inserted into one of the washers-g` Fig. 23is a'- partial vertical section and eleva-` tionalview taken-along lines 213-23lof Fig.' 22;
Fig. 24'- isa fragmentary View similar to those of Figs. and 22" showing` a position of parts intermediate -thoseofFigs'- 2'0 and` 22;
Fig. 25 is a partial vertical section and" elevational' view' taken along`r lines 25-25 of" Fig. 24;
Fig: 26"-is a' partial vertical sectiontaken along lines 2li-26'v off Fig. 1i and'illustratinga part cfI the mechanism' for inserting' unrivete'd eyelets intoy thewashers; and -its operating elements;
Fig. 27" is'apartial Vertical section and eleva-A tional-View takenfalong'lines Z'lL-Z'T ofv Fig. 1 and' illustrating m'eansifor oscillating' the eyelet feed'- ing mechanism;
Fig. 28 is an enlargedfpartial' transverse vertical secti'onoff the-upper end or receiving endA of the eyelet feeding' mechanism and includes the eyeletA containing hopper' and associated mechanism fordelivering the unriveted eyelets to the'Y eyelet 'feedingmechanism Fig; 29 isY anielevationalf viewof said upper or receivingl en'dv of saidl eyelet feeding' mechanism vlewedffromlthe right of Fig. 28 with the hopper removed" Figi. 30 is alsectional viewt'aken along lines 30e-3-of Fig; 29`and'illustrating an eyelet delivered to2 the receiving end ofv the eyelet feeding mechanism; and
Fig.1 3'1 is af fragmentary plan View of an envelope madefromapartof aA webto which wasliersg. eyelets and reinforcements have been applied. a-t' regular" intervals on the machine.
Ilhe' machineA off thislinventiony can be subdivid` ed` into a. number' of elements or units, namely-J ('-1;)f a'luxiitingunitin whichy the Washers C, reinforcement members'l lit' andi eyelets E are united Withltheftraveling paper WebfW-by meanson the cc'eplanar.'arms, (-2) a; reinforcement) forming and feedingl unit. wherein'- perforatedx reinforcementsV R'l are severed' from` ak strip' Sr of reinforcement materialzand deliveredtobapoint for pick-up byparts'ofa the uniting-funit, and" (3)1 a' Washer andv unriveted eyeletfeedingfunit infwhich the Washers C and unrivetedeyeletslEare'combinedf and de-4 livered-.to apointfor'pickmp by partsv of the unitingjunit.
The washers' C' generally" are perforated and circular in plan and; are` made of stii paper or' other suitable materiali.A The unriveted eyelets E -are'tubular andrhaveaheaded' end and an unheaded end'. Thef reinforcements R are perforated centrallyl and-may have any desired shape iniplan View; Herein they are shovvnv as of square or! rectangular shape.
The strip- S'v4 from' whichd 75 they are formed in the machine is stiff paper or other suitable material.
The uniting unit Referring to the drawing and rst to Figs. 1, 2, 3 and 14-18 inclusive, l@ denotes frame parts.` A main drive shaft II is rotatively supported in bearings I2 carried by the frame parts I0. A driving member such as sprocket wheel I5 is secured to the drive shaft I I. A spur gear I4, likewise, is secured to this drive shaft II.
The drive shaft II projects outwardly of a frame part Ill and one of the rotary co-planar arms or members I5 is secured to this portion of said shaft I I, for example by the locking bolt IB (Fig. 15). The arm l5 constitutes the washer and unriveted eyelet carrying arm.
This arm I5 has a longitudinally extending bore I'I (Fig. 15) in which a tubular sleeve i8 is mounted. This sleeve i3 projects outwardly of the operating end of arm I5 and its end Ia serves as a seat for the headed ends of the unriveted eyelets E as will bel presently described. The inner end of the sleeve bears against the annular abutment or shoulder I9. A spring actuated plunger 20 is slidably guided in the sleeve I8 and in an extension Ila. of bore Il. This plunger has a pointed or centering end ZI which normally is urged outwardly of the sleeve end 53a by the spring 22. The fixed collar 23 on the plunger 26 and the abutment or shoulder I9 limit such outward movement. A member 24 is attached to the plunger 20 and extends outwardly of the arm I5 through a slot 25 terminating in a cam follower 26 for a purpose presently to be described.
A slide member 3i) (Figs. 14 and 16) is carried on a longitudinal face of the arm I5. This member has longitudinally extending slots 3l so that it can be guidedly moved longitudinally over the said face of said arm relative to the attaching members or pins 33 which are secured to the arm l5 and which extend through these slots 3l. A pair of pick-up claws 35, 35 (Figs. 1, 17 and 14-16) are pivotally supported at 3l, 38 (Figs. 1 and 17) from the slide member 35. Springs 39, 40 tend to rotate these claws toward each other about their pivotal supports 3l, 38. The pick-up claws 35, 36 have oppositely facing cam surfaces 35a, 36a which cooperate with a cam pin 4I carried by the arm I5 which projects through a slot 42 in the slide member 33. The slide member 3D normally is urged by a spring 43 in a direction away from operating end K of the arm I5. The opposite ends of the spring 43 are attached respectively to a member 44 xed to the slide 30 and to a member 45 xed to the arm I5. The movement of slide member 35 toward the operating end K of arm I5 and counter to the action of spring 43 is effected by a crank lever 48, one of whose ends is pivot-ally secured at 49 to a flange 50 extending from the slide member 30. The other end of the lever is fixed to a shaft 5| rotatably supported from flange parts 52 of the arm I5. A second crank lever 53 is fixed to the shaft 5I. A cam follower or roller 54 is rotatably secured to 6 other hand, when the slide member 30 is moved longitudinally toward the operating end K of the arm I5 under action of the cam follower 54 and crank levers 53 and 48, the high portions of the said cam surfaces 35a., 36a, clear the pin 4I thus permittingthe springs 39 and 40 to rotate the claws 35, 36 toward each other to the limit permitted by the high portions of the cam surfaces 35a., 35a. In the latter position, the overhanging ends 35o, 36h of the claws overlie the operating end K of the arm I5 respectively on opposite sides of the plunger entering end 2l for purposes presently to be described. This is the position of these claw ends 35D, 36h when they act to pick a washer and unriveted eyelet combination from the end of the washer and eyelet assembly unit and carry it toward the uniting position of the this lever 53 for purposes presently to be described.
The cam pin 4I is so positioned relative to the cam faces 35a, 36a of the claws 35, 35 that in the retracted position of the spring 43, as shown in Fig. 17, these claws 35, 35 are spread apart with their overhanging ends 35h, 36h clear of the operating end K of arm I5 (Figs. 15 and 16). This is the release position of the claws 35, 36. On the arm l5.
A cam 58 (Figs. 1, 3 and 6) is secured adjustably to a frame part I5 about the shaft Il. The
cam follower 54 which serves to reciprocate the slide member 30 on the arm I5 operates on the outer surface of this cam 58. The latter in addition has a face cam surface 58a on which the cam follower 26 of the plunger 2li operates (Figs. l, 3, 6, 14vand 15).
In each revolution of the shaft Il, the cam 58 actuates the cam follower 54 as follows: Starting from a point in the orbital travel of the operating end K of the arm I5 just beyond its uppermost or uniting or 12 oclock position in the clockwise direction of rotation of Figs. 3 and 6 at which time the spring 43 has retracted the slide Bil to its furthermost point away from the operatingy end K of arm I 5, the cam 58 moves the follower 54 to shift the slide 3B outwardly toward said operating end K and the slide reaches its extreme outermost position just prior to the arrival of said operating end K at its lowermost or pick-up or 6 oclock position. In this period the cam claw surfaces 35a, 36a are forced away from the cam pin 4I against the action of the spring 43 by the cam 58 acting on roller 55 and the high portions of the claw cam surfaces 35a, 35a move away from the pin 4I toward the operating end K so that the claws move toward each other and their ends 35h, 36h overlie the operating end K of said arm I5. The cam surface 58a at this time has also acted on the cam follower 25 to retract the pointed end 2i of the plunger 2i). The overhanging claw ends 35D, 36h then overlie the operating end K of arm I5 in a position to pick-up a washer C and unriveted eyelet E combination from a delivery means presently to be described, and remain in this position until the arm I5 has moved past its said six oclock position. The cam 53 then drops away from the cam follower 54 to permit the spring to retract the slide 35 from its described outermost position and the overhanging claw ends 35h, 36h move toward the operating end K of arm I5 and act to press the washer and unriveted eyelet combination picked up by the claw ends 355,' 36h against the said operating end K of said arm. During this period of orbital travel the cam follower 26 rides off the cam surface 58a permitting the centering end 2I of plunger 36 to move outwardly of sleeve i3 into the tubular unriveted eyelet E of the washer-eyelet combination carried by the -claw ends 35D, 361) and functions to center said combination with the headed end of the unriveted eyelet E overlying the outer end of sleeve I 8. The cam 58 just prior to the arrival of the arm l5 in its aforesaid uniting or 12 oclock position permits the `spring 43 to move the slide 30 =toits feiitreme innermost or retracted ipsition at .which time the cam .pinlil operating :on :the cam surfaces fille, 35o oftheclaws, r-efto-spread them .apart to their described srelease vposition which is maintained until i.the operating end K of .arm l passes .its uppermost, uniting,v or '12 oclQck .position i and yreachesY the lstarting point described. This operatingcycle. is repeated foreach revolution of arm l.
'A `second shaft ce is rotatively supported in bearings di .carriedby frameparts Si). This shaft f5.0 textends `in parallelism with the main drive shaftlfl. Aspurgear 53 ci the same diameter and tooth inumber as the :gear .llt -is secured -to this shaft and meshes with the-gear ld. vThe shaft 63 extends outwardlyof the 4frame l0 and the otherco-planar rotary arm 65 'is securedzto this outwardly extending portion of the shaft El), for example byfthe lockingi'bolt GS (Fig. *15) This arm S5 constitutes .the `reinfor cement .carrying arm.
V`The operating end L of arm 155 is 'fitted With'a riveting anvil member 6. This anvil member ISS has :an-upstanding nipple iii-l for :purposes -to .be presently described.
The 4arm E5 is equipped with a reciprocably movable slide member 68 whichis-mounted thereonlin the same-'Way asslide-memberl is 4mounted on the arm l5.
ripa-ir of-pick-upclaws lllg'll (Figs. land 'i4-'16 inclusive) are pivotally supported at l2, .13.from the slide emember C58. vSprings 1.4,1l4atendtovrotate these claws "It, "Il toward each other about their lpivotal supports `2, "513. These-claws 1l), I'H have oppositely facing cam surfaces a, 'Ha similar to the camsurfaccsfcga and which oooperate with a cam pin lcarried by the .armfBS and projecting through a slot fl in the 4slide rnemloer'ill V"The slide member "E8 .is .normally urged by a spring le in Aa direction awayiromtheoperating endLoffthe arm B. The ends ofspring 'ware attached respectively to a pin :member .FIS ixed vto the slide t8 and to a member 8B fixed to thearm 65.
The movement of the slidemember 58 counter tothe spring itis-effected by crank levers-8h82 both fixed to the-shaftft@ Whichin'turniis rotatably supported 'from a flange partlhof .the:arm 35. The crank level-.3l is pivoted tothe pin-membenl-9 carried `bya ilange part 13a :xed to the slide .member ES. The crank lever 82 has ascam follower orroller: secured rota-tively thereto.
A cam' (Figs. l, 3 and@ is secured adjustablyitothe'frame HJ about'theshaftll. The cam follower. orroller 85 whichserves'to reciprocatethe slide member .G8-operates on theouter surface of this cam. "This-cam vfunctions tooperatefthe cam roller 85 to eiect reciprocal moti-on of :the slide member 68 that is similar to that imparted by cam 58 to slide member 38 and for similar purposes.
kWhen the' slide member isrecipro catedunder action of'thespring 'i8 andzmovement of `thecam follower '85 over the'cam S3, the claws Ylll, yI l are spread apart to the releasing position thereof shown '3:5 by the'action of campin "15 on the cam surfaces lila, l ia ofthe respective claws and permitted to move togetherztortheilimit:permitted by the high portions of these cam surfaces 'when thi` cam pin "l5 rides off *the ilatter. The cam pin 'llris so positioned'that the spreading apart of the claws l, 1li :occursawhenitheslide member 62 islmoved away iromthe operatingy end of arm 65, while they are moved toward each other when the slide member 68 is moved toward the loperating vend of arm $5; 'Thefreleasefposif8 tonaof ztheclawsshown vin Fig. .15 is effected just prior to the arrival of the .operating end L of the arm at its uniting or loWermost or 6 oclock position shown in Fig. '15, and is maintained until just after the saidfend L moves'past said position. During fthe remainder oi each revolution of said arm 5&5, the Vupper or claw ends lub, 'Hb of the claws 'l, ll lare-positioned to overlie the operating endl. of arm t5 on opposite sides of the nipple 67 l-forzpurposes presently to be described. When the operating end Loi arm -555 moves toward its uppermostfor -12 olclock or pick-up position the cam -88 moves theslide S8 so that the claw ends l'lb, 'llfb can pick up a reinforcement from a r delivering means presently described. After said arm end -L passes said last named pick-up position the slide-58 moves the claw ends llib, Hb to press V'the ypicked up reinforcement R against the anvil 166 with vthe nipple -'l projecting through the perforation vin said reinforcement R. `The cycle of claw Yoperations described occurs once foreach revolution ofthe arm 65.
rWhen the main drive shaft H is driven, the arms 15 and 165 rotate in synchronism. They are arranged to be cci-planar and are so positioned on their respective shafts il and 60 that they become vradially aligned with their respective operating ends in proximity as shown in Fig. li'once during each revolution of the respective shafts l l and. At this time, the paper web W toW-hich the Vfasteners are to be applied lies between the two arm ends as seen diagrammatically in Fig. i9. Some time before the arms l5 and fc5 arrive at this uniting position of Fig. 19, one -must Abe vloaded with a Washer C and unriveted eyelet E and the other with a reinforcement'memberl. In the embodiment shown, the arm 65 is adapted to bring the reinforcement member Rtorthe uniting (position While the arm H-'is adapted tobring'the combination of Washer C Vandunriveted eyelet'E to said uniting position. Separate means are provided for so loading the respective arms kl5 fand 65 once during each revolution of the latter.
Themeinforoement, forming, feeding and loading means (Figs. 1-5 inclusive and 8-10 inclusive) The reinforcement members R that are united with the Washers or collars C and Web W' by the rivetin,r of eyelets are in the embodiment l ironia-suitable source such as a roll or the like (not shown) is threaded around a curved end Silcof a guideSU (Fig. 1G), through a guideway 9i underlying the guide Sil and between a pair of rollersQZ, 93, and thence through a continuation of the jguideway 9i to an outlet end of the latter.
'The guidewayl is formed in the upper surface of aplate'tla'that is supported on the tranverse frame lila. The guide B overlies the guideway 9i and serves to retain the strip S Within the latter. 'The roller92 is supported on a stud shaft Which vin `turn is carried between a pair of brackets '95 (Fig. 5) mounted on the upper surface of the .guide 90. The guide 9i! is appropriately slotted at 9G (Fie. 10) so that the surface of the roller 92 which'is appropriately roughened or'knurled'for purpy ses presently to be described may engage the upper surface of strip S.
'The -ro1ler`93-is carried on a floating shaft 91 (Fig. 10) Whose bearing blocks 98 are urged by springs 99 located Within `the supports |00 to spring press the roller 93 through openings |0I, |02 in the frame part lila and plate 9m against the under surface of the stri-p S to maintain the said strip in frictional engagement with the roughened or knurled surface of the feed roller 92.
The feed roller 92 is rotated periodically step by step for part of a revolution sufcient to move the strip S a distance equal to the desired length of one of the reinforcements R. This step-bystep rotation is effected through the agency of a ratchet wheel |04 (Fig. 5) fixed to the stud shaft 94 and by a spring-actuated pawl |05 (Fig. 3) which is engageable with the teeth of the ratchet wheel |04. The pawl |05 is supported pivotally on a crank arm |06 which in turn is pivoted on the stub shaft 04. This crank arm |06 (Fig. 5) in turn is pivotally connected at |01 to a link |08 and the latter is pivotally attached at |0811 to a coupling |09 which is secured to a connecting rod H0. The connecting vrod is connected to a coupling member (Fig. which in turn is pivotally connected at I2 to .a coupling meinber H3 fixed to a crank lever ||4. The crank lever H4 is pivotally supported at ||5 to a fixed support H6 attached to a frame part |00.
The crank lever |4 is operated by an eccentric or cam ||1 (Figs. l and 5) which is fixed to the shaft 00 to rotate with the latter. The spring I0 maintains 'contact between the surface of cam ||1 and the crank ||4 so that once during each end, the guide 90 (Figs. l0 and '1), the plate Sla and frame part |0a have aligned holes 20a, |201), |200. A punch |2| overlies these holes. This punch |2| may be moved downwardly through holes |a andl |2017 and in such movement perforate the strip S and the punched-out part passes out through hole |20c.
The punch |2| is secured to the plunger block |22 which isjmovable reciprocally in the fixed guides |23, |24 that are' attached to the framepart Illa. A rod-like extension |25 of the block |22 projects upwardly of the latter through an opening |25 in a cross bar |21 which is fixed to the guides |23 and a spring |28 is positioned on the extension |25 above the cross bar |21 and a ,head'or collar |30 fixed on said extension |25. This spring |28 normally tends to urge the block |22 upwardly so that the punch |21 liesabove the'surface of the strip S in the guideway 9|, substantially as shown in Fig. 10. The downward or perforating motion of the punch |2| counter to the action of spring |28. is effected in a convenient manner.
In the embodiment shown (Figs. 1 and 10), a lever |32 is pivotally supported intermediate its ends at |33 from members |34 carried by the fixed brackets 95. A tined end |36`of this lever |32 engages the plunger block |22 with the tines extending on opposite sides of extension |25. A
l() secured toa forked slide member |44. The tines of this slide member lie on opposite sides of the shaft 60 and serve to guide the motion of said slide member |44. A cam follower orroller |46 is rotatably supported by the slide member |44 on a shaft |41. An operating cam |48 is fixed to the shaft 50 in alignment with the cam follower or roller |40 so that rotation of shaft causes the cam |48 to actuate the punch |2| in vitsperforating ydownward stroke once for each rotation of the shaft 50. This motion begins in the period of rotation of shaft 60 just prior to the time the arm reaches its uniting or 6 oclock position and is completed after the arm 65 passes d' such position but before its operating end reaches its pick-up or- 12 oclock position.
A shearing blade or knife |50 is secured to the punchplunger block |22 (Figs. 8 and 10). This knife operates through an opening in plate over the outlet end4 of the guideway 9| in co` operation with the outlet end face of the plate 9|a and serves to shear off the perforated portion of strip S that emerges from the outlet end of guideway 9|. This sheared off portion is one of the reinforcements R that is to be applied to the moving web W of material.
'Prior to severance of this reinforcement R from the strip S it is delivered onto a pair of receiving claws r|52 (Figs. 1, 3, 9 an-d 10). These receiving claws are formed on a reciprocally movable block |53. The block |53` is guidedly supported between the fixed guides |54 which are carried by the guide 90 and is movable vertically and reciprocally through the opening |55 in said guide |10.`- A guide plunger |55 constituting an extension of the block. |53 projects upwardly thereof through horizontal guide flanges |51, |58 of a fixed bracket member |59 secured to the guide plate 90. A spring |60 surrounds a portion of plunger |55 between the guide flange |51 and a fixed collar |0| mounted on the said plungerA |56 (Fig. 9). This spring |00 tends normally to urge the block |53 upwardly to the limit permitted by' the guide flange |51 vwhich acts as a limit stop. for such block |53 as well as a guide for` the yplunger |56. In this latter normal or unactuated position, the space |63 dened by the receiving claws|52 lies in alignment with the outlet end of guideway 9| so that the perforated end of strip S when fed forwardly and emerging from said guideway 9| is delivered directly into said space |63 and onto the claws |52. This feeding of the emerging perforated end of strip S onto the claws |52 is effected by the single step perforated portion of strip Sthen extending outn wardly of guideway19| and whose end has been positioned on the claws |52. |50a of the knife |50 at this time acts as a wedge to center the severed portion which constitutes a perforated reinforcement R on the said claws |52 sothat oppositersides of this reinforcement R overhang the side faces of the claws |52 in equal The beveled edge le amounts as seen. in Fig.. 10. for a` purpose.. to be presently described.
The receiving claws |52- are'co-planarwith the rotating arm sothat thefpick- upfclaws 10 and 1| of the arm |55rrespectively` can sweeppast the outerfside laces of the receiving claws |52 during rotation of said arm 65 to pick upthe. rein:- iorcement R. carried by them. I-niorder tofposi.- tion the receiving claws |52 so that the-reinforce ment R- carried. thereby. lies in the sweep. circle of4 the overhanging ends 10b1|b off the-pickeup claws 1n, 1|., at the moment the latter sweeppast said reinforcement bearing, receiving. claws: |52, theplunger |5|ibearing clawblock |53 ismovable vertically and downwardlyy inlopposition to spring., |60.
To this end, across bar |55A is secured. to the plunger |56. A lever |66, (Figs. 1 and 5). isgpiv., otally secured at |61 intermediate, its ends to. a xed framepart ld. One arm. Hita.y of` this. lever is engageable with the cross bar |55. .Theopposite arm |6812 of this lever has a coupling |61 at tached thereto. (Fig. 5) This coupling, |61 is pivotally securedat |58 to a coupling |09...v A con.- necting rod |10 is attached'. to this couplingl |69. and to a coupling |1| which-.latter at. |11 ispiv.-A otally joined to a crank lever |13.; This. crank lever |13 in turn is kpivotall'y supported. at. |14, from a fixed support.|1.5 carriedby the. framepart. |c. The crank lever ||1 is substantially. 6.o.- pl'anar with the eccentric or cam ||1' (Figs. 1 and and with the crank lever |'|4.. The spring |18 whose opposite ends. are secured respectively t'o` the crank levers '|14 and' |13`serves to maintain both said levers 4 and |13 insuriace contact with said camy or eccentric |".|1'. The latter 'thus serves the dual purpose of controlling the. step by step operation of the feed roller 92 andthe reciprocal vertical movement of thev receiving'claws |52. When the connecting rod f1.0l is, moved up wardly by action of" camv ||'|iA on crank lever |14; the lever |65 is rotated so that its arm |6511 engages the cross bar B5 (Fig. '1)' and thereby moves the claw block |53 from the normalposition'shown in Fig. 9 downwardly inopposition to# the action of spring |60 and in the direction of the arrow-y shown invFig. 10 to bring the reinforcement re ceiving claws |52`to-a position such that therein-A forcement R then carried thereby lies. in the sweep circle of the overhanging ends b, 1lb of the pick-up claws 10i, 1| of the arm 55. This oc curs just prior to the time thearm: 65reaches its. pick-up or l2 oclock'fposition.. As the high part of the eccentric |,1recedes from engagement-.with crank lever H'the spring 8 retractsmoving rod" |10 downwardly and thereby rotates lever.v |05 to lift its arm |56a clear of cross. bar |85. Spring |00 then returns the'cla'w block |53 to its. normal position shown in Fig-9. ThisA occurs just after the arm 65 leaves its pick-up or 12 o'clock posi. tion. This cycle of operations just describedioccurs once during eachv revolution of. shat 6.0;.. Moreover, .since the:A crank levers'. ||`||-zy andA |13 liel onopposite sides of the shaft. 6G, the feed; roller 92 and the claw block- 53 areactuated; at different. times in each rotation of shaft $07 and cam con centric |-1- so that the claw block |53 willv remain. stationary during .feeding operation of the feed roller 92 with its receiving` space |.63.then.o1: rpov site the outlet end of guideway 9.1.
Ther washer and unriveted eyelet. combining, (md.
feeding unit The washers C each have an unrveted eyelet E combined therewith by insertion 0f the* headedfendof thesaid eyelet.E throughthe central perforation of the washer and said combination of. washer and eyelet is fed to a delivery member. for pick-up bythe overhanging end 35h, 35h of.r thefpick-up-.claws 35, 3E. ofA the rotary arm- |5l Inthe embodiment shown, the pick-up point lies at whatl may beter-med the six oclock position of the rotary-arm |5. The mechanism for effecting the; combination of washers C and unriveted eyelets Eyand the delivery of such combinations one by.- one to the.A said: pick-up point will now be de,- scribed.
Referring to-the drawings and particularly to- Figs. 1, 2, 3 6 and 11-30 inclusive, |80 denotes a substantiallyhorizontal tablev which is suitablyv supportedf from the frame members I0. This table member consists of` an upper plate member` |8.|.` and-azlower plate member |32. The up-` per plate member |-8.|-has.an opening |83 in which a vertically extending tubular member |84 is positioned (Figs. 1., 11.. and-13). This tubular member |84 isadaptedtofreceive a pile P of. the perforated washersC. The tubular member |84 extends only iol: a shortlenethoftheheightoithis pile P and in order to maintainthepile E inerect position above the. tubular. member |84.,.a guide string, or wire. lextends vertically through, the. peiorations in the` Washersv C Within the-pile, P and is suitably supported from a portion of the frame (not shown). The string or wire |88 terminates within the tubular. member |84 short of its lower end. 1
The lower plate member |82 has a longitudinally extending guideway |81 (Figs. 3; 11 and 13) This guideway |81' is arranged to' underlie the tubular member |84'. This guideway |81 has a depth that is only slightly greater than the thickness off a single washer C and a width only slightlylarger than the diameter of' said Washer C so that only one of said washers C at a time mayv enter onto the guideway from thelower end of the pile P in tubular member |811.
A transfer slidemember |98' (Figs. 1r and 13) islreciprocallymovablein the guideway |81. The stroke of this slide member issuch that its leading In. such movement the transfer slide member |88' engagesv the lowermost of the washers() inthe pile P removing it from theY said. pile and'pushes the so engaged washer C. forwardlyin the guideway |81. to a pointv at thev opposite end. of its:
stroke where the washer may be united with one of; the unrivetedv eyelets` E as will be presently described. During this. motion the: portion of.
the transfer. slide member |.f90 behind its leading. edge leila underlies the pile-P of washers and noneV of thezlatter may enterv into the guiclewayr 81.
Reciprocation of the transfer slide member |30...
is effected as follows:
A- slide block; |9| is slidably supported onv a pair of: horizontally extending guide. rails |92 (Figs.
2, l1 and. 13), thezlatter being; suitably supported- This slide block: |S-| is securedy as bybolt; |93 to a guideV block |85'.
from` portionsV ofi the frame I8.
|58 (Figs. 2, 11 and 13).
Thesey pinsv |286 engage respectively in a slot. |91 inieach of the. two.=cranks; The latter are secured. to a. Stub-shaft |99 which is. rotatably supported,
13 between the xed luprights 200 (Fig. 2) which are secured suitably for example to opposite sides of the horizontal plate |82.
A pair of cranks 222 (Figs. 1a and 2) are fixed to the stub shaft i955 and these cranks in turn are pivotally connected at 223 (Fig. la) to a coupling member 2532. This coupling member 201| in turn has a connecting rod 225 attached to one end. The opposite end of the connecting rod 205 is secured to a coupling member 206 and the latter is secured pivotally at 220er to a cross bar 201 (Fig. 2). The cross bar 201 is slidably supported by the sleeves 228 from a pair of vertically extending guide rods or rails 229 which latter are suitably carried by the fixed supports 2m and 2| I. For convenience, 'the support 2|0 is flXed to the uprights 252 while the support 2| is conveniently xed to the trame part lila. Springs 2|2 are carried on the guide rails 0r rods 209 between the support 2! 2 and the lower ends of the sleeves 208, serving to urge the sleeves and with them the cross bar 2&3? in a vertical direction away from the support 2552.
Reciprocal mot-ion of the cross bar 201 on its guide rails or rods 222 is effected by a cam or eccentric 2M (Fig. 2) which is xed to the shaft 60. A cam follower 2|5 is rotatively supported on a stub shaft 2i@ which latter in turn is carried between a pair of bracket members 2|1 that are attached to the cross bar 221. revolution of the cam or eccentric 2|il, the cross bar 221 is moving from its uppermost position downwardly in opposition to the springs 2|2 to the limit determined by the largest radius of the eccentric 2U!- and then returned by the said springs to its initial position. In other words a single down and return stroke of the cross bar 221 occurs for each revolution of the shaft |50. This reciprocal motion of the cross bar 201 is translated into corresponding reciprocal motion of the transfer slide member |90 through the agency of the connecting rod 225, the cranks 202, the cranks 28, the slide block lill and the guide block i911. The stroke of the cross bar 201 is, of course, sufcient to move the leading end |90a of the transfer slide member ESB from its starting position shown in Fig. i3 behind the tabular member |82 to its nal forward position shown in Fig. ll at which latter time the undermost washer C moved from pile P by the transfer slide member |90 within the guideway |81 lies at a combining point or p..sition whereat an unriveted eyelet E is to bc combined with it.
The eyelets E are delivered for combination with the washers C at the combining point just mentioned through an eyelet guide 220 (Figs. 2 and 3). The upper or receiving end of the eyelet guide 222 is arranged in conjunction with an eyelet containing hopper 22| which contains mechanism presently to be described for delivering the unriveted eyelets E? to the guide 220. The hopper 224 and the eyelet guide 220 are secured to a bracket 222 which is pivotally supported at 223 to the frame parts iii.
For purposes presently to be described, the eyelet guide 222 is oscillated about the pivot point 223. To this end, a cam 224 is fixed to the main drive shaft (Figs. l and 27). A forked guide member 225 has its tines 225er, 22519 slidably engaging opposite sides of the main drive shaft adjacent to the cam 222. The guide member 225 carries a rotatably supported cam follower 226 which engages the cam 221i. Engagement between the cam follower 226 and the cam 224 is maintained by the action of gravity. However,
Thus, for each if desired, suitable spring means (not shown)1 may be utilized to maintain such engagement. The guide member 225 is pivotally connected at 221 (Fig. 27) to a connecting link 228 which latter in turn is pivotally connected at 229 to a coupling member 230 which is secured to the eyelet guide 228. Thus each rotation of the main drive shaft serves through the agency of the cam 224, the guide member 225, the cam follower 226, connecting link 228 and coupling member 23@ to effect a single reciprocatory oscillation of the eyelet guide 220 about the pivot 223 as a center so that the delivery end 220e of said eyelet guide 220 may be appropriately moved to effect delivery one by one'of the unriveted eyelets E for combination at the combining point with each successive of the washers C delivered to said point by said transfer slide member.
The delivery end 2206! of the eyelet guide 220 is provided with a substantially V-shaped notch 23| (Figs. 20-25 inc.) and the unriveted eyelets E appear one by one at the apex of this notch with their unriveted ends facing downwardly. A resilient member or spring 232 is secured to the eyelet guide 222 near its end 2220.. This spring 232 has a portion 232e that is normally positioned to engage under the headed end of the unriveted eyelet E appearing at the notch as shown in Figs. 20 and 21 to prevent the said eyelet E from falling out of the eyelet guide 222. This rportion 2320, of the spring is adapted to yield sufficiently to permit removal of the said unrivited eyelet E from the notch 23| as will be presently described. The eyelet guide 220 is adapted to deliver the unriveted eyelets E so that their unheaded ends when they arrive at the notch 23| are lowermost, and the spring portion 232e engages under the headed end of each of the eyelets as it reaches said notch 23|.
At the combining point of the washers and the unriveted eyelets, a pair of transversely movable spring actuated jaws 235, 236 are positioned, suitable lateral recesses 231 and 238 being provided for this purpose in the upper table plate |8I. The adjacent faces 2350., 236e of these jaws 235, 235 are oppositely slanted so that when the jaws are in abutment a V-shaped recessk 239 is formed by them. rThe apex of the recess overlies the center of the guideway |81 for a purpose to be presently described. The springs 240, 24| normally urge the respective jaws 235, 236 toward ea-ch other.
A reciprocally movable plunger member 250 is z supported in alignment with the V-shape notch measured to permit it to be inserted through the unriveted hollow eyelets E from their headed ends. The end 25|a of this portion may be pointed to facilitate such entry into the hollow unriveted eyelets E. The plunger 250 is carried by the cross arm 252 (Fig. 26) and the latter in turn is slidably movable on the guide rails 253 which are supported vertically from a part 2515 (Figs. l, 20, 22 and 24) carried by the upper plate l. The springs 255 which are mounted on the guide rails 253 between the cross arm 252 and the part 2532i tend normally to urge the cross arm 252 and with it the plunger member 250 upwardly so that the pointed end 25m lies a distance above the part 254.
Reciprocal motion of the cross arm 252 on the guide rails 253 and consequently reciprocal motion of the plunger 250 is effected by a cam 251 '26.25, and the tines 2596i, 260i? of these guides eX- tend, on opposite sides of the shaft and function' to. guide the vertical motion of the guides 26111. The latter4 areS secued' to the cross arm 252. In consequence, the-springs*255'rnaintain the cam follower 258 in engagement with the cam 251. Rotation ot the cam 251l with the shaft I thereby effects reciprocal motion off* the plunger member 250. For each rotation of' the shaft l I the plunger: 25d`r is moved onoefrom its uppermost or retra-cted` position showny in Fig. 21 to its lowermost position shown in Fig. 23 at which time it has removed' an unriveted eyelet E from outlet end 22Go of the eyelet guide 22B and inserted it through *thel perforation of the underlying washer C;
The sequence of operations eiected respectively by the cam 251 which operates the plunger 25S andthe cam 224 which elects reciprocal oscillatory motion of the-.eyelet guide 228 is as follows:
Just after the leading end `|9211 of transfer slide member |96 has reached the limit of its transferringstroke as shown in Fig. 11 and has pushed one of the washers C below the jaw members 235, 236' with the central perforation of the washer in alignment with the end 25|aI with the plunger 25B; the latter lies in its uppermost position as shown in Fig. 21. At'thistime the cam 224 has been rotated to such a position by the shaft Il that the apex of the notch 23| inthe delivery end 225cv of the eyelet guide 220' lies substantially below the pointed end 25|a of the plunger 250, withv an unrivetedf eyelet E engaged; by the spring end 232a in axial alignment with the said pointed end 25I'a.
As the shaft I I continues to rotate the cam follower 226` operating on the cam 225 moves on a portion thereof which fails to impart any motion to the eyelet guide 220. However, the plunger operating cam follower 258 begins to move on apart of the cam 251 which movesl the plunger 25|' in a downward direction` for a distance suflicient for the pointed end 25|a and the reduced portion 25| to be inserted into the hollow eyelet E then engaged by the spring end 232e. As soon as this occurs they eyelet guide oscillating cam 225 begins. to operate the eyelet guide to move its delivery end 22Go clear of the plunger 25I as shown in Fig. 25. Such motion because of the previous insertion of the plunger end 2-5Ia into the eyelet E causes the latter to be pulled out of the V-notch 23| against theaction of the spring end 232er. The plunger member 25| then continues downwardly carrying with it the eyelet E and' moving it rst into the rV-shaped notch 239 provided by the faces 23511, 21351) of the jaws 235, 23E and then further through these jaws which move apart'againstthe opposition ofv their springsr 24B, 211| until the unheaded end of theV eyelet passes through the perforation in the collar C underlying the jaws 235, 236V and until the head of the eyelet clears the lower edges ofV the said jaws. When such clearing occurs the jaws 235, 236 spring together suiciently as shown in Fig. 23 to overlie the headed end of the eyelet E which has been inserted into the collar C so that the retractive movement of plunger 25| which now begins does not carry with it the so inserted eyelet- E. After insertion of the end25,`|. of the plunger 252 the eyelet guide operating cam 221i` func.-
li tionsto move the delivery end 2200 of the eyelet guide clear of the path of travel of the plunger 25| and its associated parts. When the plunger operating'cam 251. returns in its upward stroke to its initial position as shown in Fig. 2l, the eyelet` guide operating cam 224 has again operatedy to permit restoration of the delivery end 220e of the eyelet guide 220 to the position shown in Fig. 21. This cycle of operations occurs once during each revolution 0f the main drive shaft II, and is repeated for each such revolution.
After an unriveted eyelet E has been inserted or combined' witha washer C underlying the eyelet inserting plunger 25| as just described and after the latter has been moved out of the so inserted eyelet E, the washer and inserted unriveted eyelet combination soV made must be transferred to la receiving means 2111 in which it may be positioned for pick-up vby overhanging ends 356, 36h of the pick-up claws 35, 36 of the rotary arm I5. yThis receiving means 210 (Figs 6, 1l and 13) comprises a block 21| which is movable vertically and reciprocally at the delivery end ofthe guideway |81. This block 21| has a transversely extending open ended slot 212 (Fig. 6) which in the receiving or lowerrnost position of the block 21| is aligned with the guideway |81. The block 21| is recessed at 213 below the slot 212i for an amount soilicient toreceive the unheaded end ofthe eyelet withA an unriveted eyelet as hereinbefore described. This pin is secured to a block 21.9 and the latter in turn is connected to a rod 280 which in turn is secured. pivotally at 28| (Fig. 11) to the slide block, 19|. By this arrangement, the movement lof the pusher or transfer pin 21.8 is controlled by the same cam or eccentric 2M which reciprocates the slide block |9| through the cranks |28. In other words, the transfer pusher pin 218V and the transfer slide lill)4 are operated from a common controlling cam. 2M
and are moved simultaneously.
In the movement of the transfer pin or plunger 218 from. its final position shown in Fig. ll rearwardly to its starting position shown in Fig. 13, it is necessary for the pin or pusher 218- to -be depressed as it passes below the point of combination of washers C and eyelets E, that is, as itr passes below the eyelet and washer combining mechanism described above. To this end, a` cam wedge 285v (Figs. 11-13) is pivotally supported intermediate its ends at 285 from a fixed bracket 231 which is secured to the member plate |82. The wedge 285 lies in the path of travel ofa laterally extending pin 219a fixed to the block219 sozthat as the blocky 219 is moved in its retraction stroke, this pin 219@ engages the under face of the wedge 285V which widens inthe directionoi the-retraction stroke and such engagementisshown in Fig. l2. This engagementy causes. the block. 2.19- carrying the pusher @stones l? pin 218 to be rotated suioientlyaboutits pivot 28| to permit the pil-'1,218 to clear` the pointed end |a of the eyelet insertingplu-nger 25|. The .cam wedge 285 is soyadmeasured in length that the laterally extending pin g1g@ rides off the lower face .of the came wedgeti just `prior to the time that the block-219 `reaohesits rear most position asshoivn in Fig. ,1;3. At-this time, the spring .289, Whichis fixed at oneendof 'slide block -|9| vand Whose otheIL end engages `the pivoted rod 28B-returns or restores thepushezl" pin 218 to its original levelat which time it lies behind rear edge of the washer and bearing an inserted eyelet E as seen in 13, Omit-he next forward stroke of;4 the pusher pin 218,. the pin 2 19a rides voverthe-.top face :oi the k.ca-n1 wedge 285 so that the pusher .pin -zflwremains at its high level shown in Fis.y 1,3; and. feeds combined Washer C. landnnriveted eyelet Eroi-s Wardlv in the-suidewavll and delivers it vinto the slot 212 of the reoevingiaw blo.ok.,2;1|.v
When a combined V.Washer andeyelet have been delivered into the-motel? .of the .bloekzliL it is necessary -to move theylatterrvertically to raise the washer and u-nriveted eyeletoomhination .carried thereby to a .level .wherein it will be picked up by overlfiarig-ing` ends ab'oi the claws 35, Sbthe arm l5. .'"To this end, the block `21| Vis Secured tofa slide rod 295 .that is guidedly supported ini laterally .extending flanges '296,291 .which extend from a `suitable bracket member v291i .carried by theznpper plate member |81. Thelateraliiange .286 serves as a limit stop for thelovver .endl of :jaw `block 221i and when the latter-rests upon yit the jaw slot 212 is :in alignment lWithrthe outlet `end .of the guideway |81. The vplate'-.mernloer .=|8| iis perforated :at 2.9.9 to :permitazvertical movement of 4the jaw sblock 21| therethrough A movement in the .upward.-.direction isle-ected by 'the plunger operatingicaml'l.;
To this end, the guide 25.0- CFig. `26) A`carries a laterally extendingfpin :398.` A coupling meme: ber. 38| (Fig. l) is pivotally secured .to .thislpin and one end ,ora :oonnectingrod '.32isrseoured to the coupling rnernheri.y The .oppositefend of the connecting Aend `"of `therod fis'ipivotally se cured at 383 (Fig. 1) :to apooupling member 304. The latter in turn is secured to.an1end of a lever 305. .This .lever .3&5 is. pivotallyisupported intermediate its end at '-.ileffrom a. fixed support -301 conveniently attached :to the upper vhorizontal plate |8.|. The free endfof .the lever 3.055is rmovable into.anrengageinentfwith a cross baralthat is iixed to extend laterally -frornthe gluiderod 295 and the/jaw block 'l1-ii. `A=suitablerspring 3.09 lpositioned on the` rod `295i 'betweenf a 4fared collar 3H) and' they lateral "ange :291znorma'lly urges the rod 1295 and its jaw blooki21| downwardly into'position shown inFigplll.. aOn'eLdu-ring .each rotationof the carri 251=through the. agency of the connectingrodi-30,2;lever .30S-and cross .bar 368,'the jaw-'block 21|'is lifted from' its position shown inv Fig. v1i lto the raisedlposition shown in Fig; 1 at which time the Viaw slot 212 lies above the level horizontal top plate v18| vand in the sweep' stroke oi' the -overhanging ends F3519', 36h of pickupc1aws 35,436 ofthe `arm |=5 `vvhicl'r move past the said block 211| on' opposite sides thereof and pick up the combinedwasherC-and unriveted eyelet -E then lying the slotf2'12. .f 'The cam 2151 is so arranged on the drive shaft kIll-'that thefblcck 21| 'reaches itsuppermostor pick-up position just prior to the moment Whenthe arm I5' arri-ves'lat the pick-opl position of iitsstroke.
is f This pick-up position, in the embodiment shown, may .conveniently be described as the 6 VQclool; position of thearm l.- 1
The unriveted eyelets E. are initially .dumped hapllzardly into the `hopper 22|. It has a remQVable cover plate f3|5 for such purposes. The upper or receiving end 2281i of the eyelet guide 22A@ terminates within the hopper along one Wall thereof as shown in Figs. 28 and 29. This terminalend 228i) has a substantially Veshaped notch` 22de and this notch lies in vspaced relation from a -lorloeliy .sie Awhich also is carried on the same ieee 0f the hopper 22|. A bleek overlies the notch 220e. y The block .SIS is provided on its iront face with a plurality of vertieallyextending grooves 3|8. A brush member 3|@ is supported WithinA the hopper on a transverseli7 `extending shaft 32@ journaled inopr.- pusiste-:side walls of the hopper 22|. This brush member has sets of radially extending bristles 3&9@ which are admeasured in radial length to engage the lower curved Wall 22m of the hopper and when the brush is rotated clockwise, as seen in Fig. 28, the bristles 31950: serve to sweep eye.-
lets which lie haphazardly inthe hopper 22| upwardly into the recess Bll of the blool; 3| `from which when properly aligned they drop finto the receiving notch 22Go of the eyelet `guide 22d. The grooves lg in the block l `permitgthe -ends of some vof the bristles during rotation of the-brush to enter `into the recess Klill and agitato `eyelets Erin said recess and orient ,them at random and suiciently freouentlyso ,that enough eyelets E `loe arranged therein with vresi/sect to the notch 22Go oi theeyeletguide 22% to fall into the latter in proper position so thatlihev will pass downs vvardly Athrough `the eyelet guide :220 to its delivery fend 22M in the position shown in Figs. 2l,23,-2,5 and in Eig. 30. The shaft 32|] is suitably driven by a sprocket Wheel 325 shown in Fig. 3 whh is iixed to a `portion ofthe shait 32|) that .extends externally of the hpper 22|. .This sp1-toolset may be coupled through a chain 32l5to ahy-.Convenient sourceof motive power as sprocket 321,. ,Any Aother conventional means `for feedingA the eyelets ato the eyelet guide 22.@ may be utilized.
In the Aernbodimenit shown, the hopper is mounted .on `the pivoted bracket l22.2 ythat supports the .eyelet Aguide 221B so that -itis agitated to some .extent by the reciprocal-oscillatory mo-V tion imparted to the leyelet guide 22) through the agency `oi the cam 252.41 as is previously described. This aids in proper delivery .of the un.- rivetedeyelets El to the .guide 222i.V I i Means `(not shown) yare provideclfor mov-ing the web W in timed relation to the eyelet` applying means and the Web is guided suitably lin. a hired member :350 .carried by vthe frame. This guide a slot 3.5i through which `the web passes. A smoothing .out member :352 having spring ylingers13.53 lis adjustably mounted on the member ,S58 so `that the spring ngers ypress against the web W-froin opposite sides to .prevent lateral slip of the web inthe guide slot 35 The operation of the machine f llhe general oper-ation of the maohineis briefly',`
YThemain ,driyeshaft .ll is driven by coupling." off .itsfsprolet Wheel Iii `to a suitable Vsource of.,
The recess .3H of .this
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950026A (en) * 1957-09-13 1960-08-23 Sylvania Electric Prod Apparatus for handling annular elements
US5426838A (en) * 1994-04-18 1995-06-27 Korb; Lothar Method and means for applying vents to fabric

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US830709A (en) * 1905-01-25 1906-09-11 Walter T Gordon Machine for attaching slats to conveyer-belts.
US1400002A (en) * 1919-10-27 1921-12-13 American Snap Fastener Company Machine for carding snap-fasteners
US1901375A (en) * 1931-04-08 1933-03-14 Patent Button Co Button attaching machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US830709A (en) * 1905-01-25 1906-09-11 Walter T Gordon Machine for attaching slats to conveyer-belts.
US1400002A (en) * 1919-10-27 1921-12-13 American Snap Fastener Company Machine for carding snap-fasteners
US1901375A (en) * 1931-04-08 1933-03-14 Patent Button Co Button attaching machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950026A (en) * 1957-09-13 1960-08-23 Sylvania Electric Prod Apparatus for handling annular elements
US5426838A (en) * 1994-04-18 1995-06-27 Korb; Lothar Method and means for applying vents to fabric

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