US2575019A

US2575019A - Snap fastener carding machine

Info

Publication number: US2575019A
Application number: US6464A
Authority: US
Inventors: Kiessling Max
Original assignee: AMERICAN FASTENER Co
Current assignee: AMERICAN FASTENER Co
Priority date: 1948-02-05
Filing date: 1948-02-05
Publication date: 1951-11-13
Anticipated expiration: 1968-11-13

Description

Nov. 13, 1951 M. KIESSLING 2,575,019

SNAP FASTENER CARDING MACHINE Filed Feb. 5, 1948 1Q Sheets-Sheet l mo N H INVENTOR.

MHX K/ESSL/NG BY FITTORNEY 10 Sheets-Sheet 2 M. KIESSLING SNAP FASTENER CARDING MACHINE Nov; 13, 1951 Filed Feb. 5, 1948 INVENTOR MHX K/ESSL/NG ff'fi ATTORNEY Nov. 13, 1951 M. KIESSLING SNAP FASTENER CARDING MACHINE 1O Sheets-Sheet 3 Filed Feb. 5, 1948 INVENTOR MHX Kl-ESSL/NG ATTORNEY Nov. 13, 1951 M. KIESSLING I ,0

SNAP FASTENER CARDING MACHINE Filed Feb. 5, 1948 10 Sheets-Sheet 4 Ml-7X K/ESSL/NG kmim? A'TTORNEY Nov. 13, 1951 Filed Feb. 5, 194.8

ZIS

10 Sheets-Sheet 6 INVENTOR. MHX K/ESSL/NG ZIO FITTORNEY Nov. 13, 195] Kl ssLme 2,575,019

SNAP FASTENER CARDING MACHINE INVENTOR. H 5 2 MHX K-IESSL/NG H TTORNE Y Nov. 13, 195] M. KIESSLING "2,575,019

SNAP FASTENER CARDING MACHINE Filed Feb. 5, 1948 10 Sheets-Sheet a Zll INVENTOR. MHX K/ESSL/NG FITTORNE Y Nov. 13, 1951 M. KIESSLING 2,575,019

SNAP FASTENER CARDING MACHINE Filed Feb. 5, 1948 10 Sheets-Sheet 9 MFl X K/ESSL/NG FITTORNEY Nov. 13, 1951 M. KIESSLING 2,575,019

SNAP FASTENER CARDING MACHINE Filed Feb. 5, 1948 10 Sheets-Sheet 10 HTTORNEY from the left mpi s ancie.

Patented Nov. 13, 1951 UNITED STAT SNAP FASTENER' CARDING MACHINE s. v Mazr Kie'ssli ng, Waterbury, C onn. a'ss'ignor' it The American; Fastener 'company,'-Water ur "Conn'.','a corporation of Connecticut I n

ApplicationFebruary

5, 1948, Serial N o. .6,4.64 H i 1 This invention relates to machinesfor applying snap fasteners to cards, and more particularly to a machine for automatically assembling male and female snap fastener sections with the cards upon which the fasteners are to bedisplayedand sold.

This machine is constructed for use with fasteners of the type having two complementary sections, each of which has the shapeof .a disk with a central projection, the projection of one section being adapted to snap within the projection of the other section, wherein it will be held by the resilient action of .the latter, v

It is customary to apply snap fastener to perforated display cards byassembling or closing the respective fastener sections in such a manner that the card is confined betweenth ernl Here'tofore this operation has been done by hand, with the result that it was slow, tedious,and so expensive'that it representeda substantial part of the cost of the product. V

Accordingly, one object of this invention is to provide a machine of the above nature which includes mechanism for automatically applying a predetermined number ofxsnap fasteners to each display card. 7 n

Another object is to provide a device of the above nature which includes means forclosing a successionof the snap fasteners at a fixed locationin the machine, and means for rotating the display card so that a circular series of fasteners will be applied thereto. f V

Another object is to provide a; devic of the above nature having means for automatically stopping the machine and releasing'the display card after the card has received the predetermined number of fasteners.

' A further object is to provide a machine'of the above nature which will be relatively simple in construction, inexpensive'to manufacture, easy to install and manipulate, compact, and very efficient and durable in use.

With these and other objects in view, there has been illustrated on the accompanying drawing one form in which the invention may conveniently be embodied in practice.

The male fastener sections will be referred to hereinafter as studs, and the female fastener sections will be referred to as springs-thesebeing the terms commonly used in the'trade; I

In the drawings,

Fig. 1 is a top plan view of the machine.

Fig. 2 is a front elevationof the same.

Fig. 3 is an end View of:..t he machine looking ea me 1 [Fig it aims; sectional view on the use 4+4 of, Fig. ,1, looking the direction of the arrows.

with the displaycardshown in broken lines. Fig .25; fa cross sectional view, on the broken line sfsorFigilqf f Fig fiiis a cross sectionalview, on the line 66 of Fig. 1, showing the spring feed'an'd'the spring slide, the latter'being in withdrawn position.

Figf'l is a cross sectional view on the broken line T-l .-of Fig. 1 behind the card, showing the stud -esiape and feed, 1 the feedlslide being in withdrawn position."

is a cross ctional view on an enlarged scale, on the line 8 of Fig.1, showing the snap fastener closing niechahisma'fthe card holder, a

card therein, and a'stud and a spring at opposite sides thereof.

Fig. 9 1s a cross sectional View, showing afportion of Fig. 6 on an-enlarged scale, the spring feed. slide being in its advanced position.

Fig. 10 is'a cross sectional view, showing a portion of Fig.7 on an enlarged scaleybut showing the studfe'ed slide in itsa'dvanced position, and the escape member in open position. Fig. ll'is acrossjsectional view,'on' an enlarged scale, taken'bn a'portio'n of the line 88 of Fig. l,

f with the stud jand'spring members, in position readytobeclosed upon the'card' V Fig. 1 2 is' a view similar t'oFig. 11,"but showing the stud and spring members assembled upon thecard. I

Fig. 13"is"afplan view "of a rectangular display card upon which a pair of snap fasteners have been attachedl." I

Fig. 14 ,is a fragmentary cross sectional view similar. "to Figs. 11 and 12, taken alongjthe line Bf- 18 of Fig. "1, with the stud and spring carriers infaipartially retracted: position, ready to permit I removal of the display card;

Fig. 15 is a horizontal cross-sectional view, on an enlarged scale; looking downwardly on the In line |5+-I 5 of Fig. 6, showingboth stud and spring carriers in fully retracted position.

. Fig. 16fis1a cross-sectional view, on an enlarged scale, taken onthe line l6 'l6"of Fig. '7; showing the stud escape mechanism in open position.

,Fig'. l'l is a cross-sectional view taken on the i 1m'ej|1 n of Fig. 10, showing the stud escape mechanism in closed position. 7 e Fig. 18 is a cross sectiona'l View, similar to Fig. 15, taken on the line l8,l 8 of Figs. 9 and 10, but

. showing the stud and spring carriers at the instant of engaging a stud'and aspring advanced by the stud feed slide and the spring feed slide. Fig. 19 is a detail view of a portion of Fig. -9,

showing the spring feed slide and magazine, but with the spring slide in a partly withdrawn position.

Fig. 20 is a detail view of the stud magazine and feed mechanism, similar to Figs. 7 and 10, but showing the stud feed slide in a partly withdrawn position.

Fig. 21 is a cross-sectional 'view on the line 2l2l 'of Fig. 19, showing the appearance of a spring located on the spring carrier preparatory to the final closing movement.

Fig. 22 is a sectional view, substantially on the line 22-22 of Fig. 20, showing the appearance of a stud located on the stud carrier, preparatory to the final closing movement.

Referring now to the drawings inwhich like reference numerals denote corresponding parts throughout the several views, the numeral Ill indicates a rectangular machine bed having a leIt hand rectangular pedestal base II, and a right hand rectangular pedestal base l2, secured in spaced relation upon the front portion of said bed by means of bolts 13. The left hand pedestal base II is provided with a pair of spaced upstanding pedestals I4, 15, and the pedestal base I2 1s provided,w1th a pair of spaced upstanding pedestals l6, l1, all of said pedestals being disposed in alignment across the front portion of the bed 16.

The pedestals l4, 15 are provided with aligned horizontal bearings I8, 19 (Fig. 2) rotatably supporting a card holder shaft 26, and the pedestals l6, [1 are provided with aligned bearings 2|, 22 rotatablysupporting a clamping plate shaft 23, whereby said

shafts

20 and 23 are supported in coaxial relation with their inner ends disposed in the space between the pedestals l5, l6.

Card holder A card holder 24 is secured on the inner end of the shaft 20 by means of a central hub 25 on the back of the holder, and a set screw 26 in said hub. The card holder 24 is adapted to support a display card C (Fig. 13), in a vertical plane between the pedestals 15, I6, in such a manner that a circular series of perforations P in the "card C will be held in coaxial relation with the card holder shaft 20. In order to hold the card accurately in position, the holder 24 has a flat face 21,

side walls

28 and 29 adapted to confine the side edges of the card C, and an end wall 30 (Fig. 6) which holds an adjustable abutment 3| for locating one end of the card C;

The display card C will be clamped against the fiat face 21 of the card holder 24 by means of a fiat clamping plate 32 secured on the inner end of the clamping plate shaft 23 by means of a central hub 33 upon its rear face, and a set screw 34 in said hub.

The clamping plate shaft 23 and the clamping 'plate 32 thereon are adapted to have limited longitudinal movement in order to clamp or release the card C within the holder 24. Means to be described hereinafter is provided for accomplishing this movement.

The card holder 24 and the clamping plate 32 are each provided with a circular series of

apertures

35, 36, respectively, which are best seen in Figs. 6 and 8. These

apertures

35, 36 will be disposed in alignment with the perforations P of a card in the holder 24, and will be brought successively into alignment with a stud carrier 31 and a spring carrier 38, as the card holder 24 is rotated, so as to permit application of studs D and springs S to said perforations;

4 It will be seen by reference to Figs. 13 and 14 that the studs D and the springs S will be snapped together or closed from opposite sides of the card C to form complete fasteners F, the stud D of each fastener being disposed in one of the perforations P.

A step-by-step rotating motion is imparted to the card holder 24 by means of a ratchet wheel 39 secured upon the outer end of the card holder shaft 20 and having teeth 4!! equal in number to the perforations P in the card C.

Thus, as the card is rotated in the holder 24, each of the perforations P will be brought in turn to a position between the stud carrier 31 and the spring carrier 38, whereby the fasteners may ,The machine bed l0 is provided with a slot 41 .in' order to provide clearance for rotation of the card holder 24.

,In order to drive the ratchet wheel 39 and other mechanisms of themachinaprovision is made of a main drive shaft 42 mounted in a lateral position upon the rear portion of the bed Ill by means of flanged bearing blocks 43, 44

"secured by bolts 45, 46. 7 The drive shaft 42 is retained in the bearing blocks 43, 44, by means of bearing

caps

41, 48 which are secured by bolts 49.

A driving connection between the drive shaft 42 and theratchet wheel 39 is established by means of a crank'56 on the shaft 42', a connecting rod 5| secured to the crank, a lever 52 swingably carried upon the card holder shaft 29 outwardly of the ratchet wheel 39, and a pawl 53 which engages the teeth 40 of the ratchet wheel. Thus, rotation of the drive shaft will cause the ratchet wheel to be advanced intermittently.

In order to prevent the card holder 24 from turning too far at the end of each advancing movement, a pair of

friction members

54, 55 engage the shaft 20 between the pedestals I4, I5. A clamping screw 56 is provided whereby the

friction members

54, 55 may be adjusted to exert the desired braking action upon the shaft 29. The

friction members

54, 55 are held in place by means of a flange 51 which is formed on the member 54 and secured to the upper surface of the pedestal base H by means of a bolt 58.

Thus, the rotation of the card holder 24 will be accurately controlled so that the perforations P of the card C in the holder 24 will be stopped exactly in line with the stud carrier 31 and the spring carrier 38.

Driving and clutch mechanism The main drive shaft 42 will be rotated continuously during thefapplication of the snap fasteners F to a card, so that the fasteners w'ill be applied successively until the card C has made one complete revolution and all of the perforations P therein have received fasteners. The drive shaft 42 willthen be automatically stopped.

This feature of the operation is accomplished by means, best seen in Figs. 1, 2 and 4, which includes a fly wheel 591 loosely retained upon the right-hand end of thedrive shaft 42 by means of a collar 60, and engaged by a belt 6| which is constantly driven by any suitable source of power. A releasable driving connection is provided between the fly wheel 59 and the drive shaft 42 in the form of a clutch indicated generally as '62. The clutch 62 comprises a cylindrical body 63 having an inner longitudinal aperture 64 which carries a bolt 65 adapted to enaw-sore 'Thebolt 65 is normally spring pressed into engagement with the slot 66, but is provided with a head 6'! which'is engageable by a clutch arm 68, whereby it may be withdrawnfrom said slot 66. e r

The clutch arm 68 is carried on a bracket 69 at the rear of the bed'by means of a pivot pin I8, and is provided with-a curved front end portion II which conforms to the curvature of a reduced section I2 of the clutch body 63. The arm 68 is normally urged upwardlyagainst the reduced section 12 by means of a coiled spring I3, whereby an inclined cam surface 14 on the end portion II of the clutch armwill engage behind the bolt head 61 as it rotates with'the body 63, to withdraw the bolt 65 from the slot 66. A lateral stepped abutment .15 is also -provided on the arm 68, which is adapted to engage thehead 61 of the bolt 65 during rotation of the shaft 42 in order to bring said shaft to a; positive stop.- a i In order to release the bolt 65 so as to reengage the clutch, provisionis made of a clutch trip rod 16 (Figs. 2 and 4) which is connected to a -central portion-ofzthe-clutcharm 68 by means -of.a pin 11 and is vertically slidable ina guide I8 on the machine bed I8. A link I8 is provided for'connecting the clutch trip rod 16 to any suitable actuating-means, so that the trip rod .16 may be moved downwardly to swing the clutch arm 68 and thereby permit the bolt 65 to enter :the slot 66 and start the machine, whenever desired bythe operator. 1 e

. Tripping of the: rod I6 will initiate a machine 1 cycle during which the drive shaft 42 will make --a predetermined .number of revolutions, whereupon the clutch will automatically be thrown out of engagement.

.In order to accomplish this, provision is made of meansincluding .a cam 88 which ds secured to the'main drive shaft 42 inwardly of .the bear- -ing block.44,;and;adapted to depressa lever 8| once in each revolution of the shaft 42 by means of 'a cam follower 82 on said lever. The lever 8I is pivotally mounted in a block 83 secured to the rear edge of the bed-I8, and is connected at its frontendtoacoiled spring 84 supported by a bracket-85 held underthelhead :of. one of the ,;bearingcap bolts 49, so that the follower 82 will be--.-maintained: against" the peripheral 1 surface of the cam 88. M Thezlever BI is: operatively connected to a ratchet wheel 86, which is secured upon the inner end of a horizontal control shaft 81 in a bearing block .88 on the bed I8,-by meansofa link 89, a ratchet lever 98, and a pawl 8I. The teeth of the ratchet wheel 86 are equal in number to the teeth of the ratchet wheel 38 on the card holder shaft. 28, and to the numberof perforations P I in the display card C.

The outer end of the control shaft 81 is provided with a control disk 82' (Figs. 1, 3 and 4) having a cam projection 93 on its innerface. for

. a purpose to be described hereinafter. The .outer face of thecontrol disk 92 has an eccentric clutch release pin 84 adapted to engage a cam nose 95 on the forward end of a clutch release lever86, which is pivoted on the side of the machine bed I8 by means of a stud 81. The re lease lever 86 has a tapered rear end 98 which is adapted to engage in a notch 98 in the clutch trip rod 16 so as to hold said rod in a depressed position, However, it will be seen that when .the ratchet wheel 86 (and concurrently, the card QC) has-made one complete revolution,--the release pin- 94 will strike the cam nose 95, whereby the rear end 98 of the release lever 96 will be disengaged from the trip. rod 16 to permit the clutch arm 68 to swing upwardly and thereby disengage the clutch and stop the machine. .The rear end 98 of the lever 86 will be urged against the trip rod 16 by means of a coiled'spring I88 connected to the release lever 88, so that tripping of the rod 16 will cause the end 88 to engage in the notch 88 and thereby maintain the machine in operation until the release lever 86 is engaged by the release pin 94. 9

Card clamping mechanism In order to release the clamping plate 32 from a card C in the holder 24 at the end of one revolution of the card, provision is made of means including a cam piece I8I which is secured to the side of the cam 88. The cam piece IN is engageable with a follower I82 upon the rear arm of a bell-crank release lever I83 which is swingably mounted under the head of the bearing block mounting bolt 46. The forward arm of the bellcrank lever I82 has a depending pin I84 engageable with the rear 'end'of an offset lever I85. The

offset lever I85 is pivoted ona stud I86 upstanding on the pedestal base I2, and is provided adjacent the pin I84 with an inclined end surf-ace I81 having a rounded recess I88 at its high point. The inclined end surface I81 and the recess, I88 are engaged by a slidable detentl88 which is carried in a tubular guide II8 upon the control shaft bearing block 88 and pressed outwardly by a coiled spring II I so as to maintain the rear arm of the offset lever I85 selectively in different positions.

The other end of the offset lever I85 is in the form of a yoke I I2 engaged in an annular groove H3 in the outer end of the clamping plate shaft 23. The offsetlever I85 will normally be urged in a clockwise direction by a coil spring H4, so that the clamping plate shaft 23 and the clamping plate 32 thereon will clamp the card C firmly 1 in the card holder 24.

7 However, provision is made of a nose II5 so disposed upon the outer side of the rear arm-of the offset lever I85 that it will lie in the pa'thof the cam projection 83 of the control disk 92 when the clamping plate 32 is in its clamping position. Thus, when the card C, and consequently, the 'disk82 have made one complete revolution, the cam projection 93 will engage the nose '5 to move the offset lever I85 in a counterclockwise direction, whereupon the detent I88 will engage in the recess I88 to hold the clamping'plate 32 V in its released position as seen in Figs. 1, 2, and 8. The parts will remain in this position until the machine is again started by the operator, whereupon the cam piece I 8| will actuate the bellcrank release lever I83 to release the offset lever I85 from the detent I89, so that the plate 32 will again clamp a card in the card holder 24.

It will be noted that the release lever I83 will be in an inactive condition excepting duringthe first revolution of the drive shaft 42 which occurs after the rod I6 is tripped.

Stud and spring feed In order to supply the snap fastener studs D and springs S to the machine, provision is made -ofa vertical stud magazine H6 and a vertical spring magazine I I I, whichare best seen in Figs.

The-stud and spring magazines II6, I'I'Ifcom- +prise, respectively; chut'e members-H8-and'*"I'l9 having guide channels. I28,I 2-Ij and pairs ofretaining strips I22, I23 secured by screws I24 1n longitudinal'positions overhanging the channels I20,I2I.v p

In order to support the magazines I I6, I I1 and other related mechanisms, mounting blocks I25,

I26 are secured to the upper inner corner portions of the pedestal I5, and a pair of mounting blocks I21, I28 are secured upon the upper inner corner portions of thepedestal I6 (Figs. 2, 9, 10, andl8). i

The blocks I25, I26, I21; I28 are formed with notches I29 in their lower inner corners (Fig. 18) so that the blocks will seat firmly upon the pedestals and are secured thereon by means of screws I30 (Fig. 2). The stud and spring magazines I I6, I'I1 are secured respectively in a recess I3I in the mounting block I255 (Fig. and in .a recess I-32 in the mounting block I28 (Figs. 8 and 9);, by

means of screws I33, I34, so as to be flush with the inner faces of the mounting blocks. a

The lower end of the stud magazine I I6 is seated upon the upper surface of a stud feed indicated generally as I35, which is secured in slots I36, I31 in the outer faces of the mounting blocks I25, I26 (Figs. 10, 11, 12).

The stud feed I35 comprises a bar I38 (Figs. 10, 11, 18) having'a horizontal stud channel I39 in its front face, and an entrance slot I49 (Fig. 10) which is aligned with the channel I28 of the stud magazine so as to permit passage of the studs downwardly from the magazine I I6 into the stud channel I39.

The stud channel I39 contains a feed slide I4I extending inwardly from its front end, said slide I46 adjacent the card holder 24 having a chan- V neled rearward portion I61 to permit the operation of a stud stripper I48, to be further described hereinafter.

The feed slide MI is reciprocated by means of an, operating slide I49 which is disposed in a channel I56 upon the rear face of the bar I38, and connected to the front end of the feed slide MI by means of a screw [5| and a filler piece I52. The operating slide I49 is operated from the main drive shaft 42 by means of a cam I53 on said shaft 42 (Figs. '7 and 10). A follower I54 is held against the periphery of the cam I53 by an arm I55, which is swingably carried in a block "I56 on the machine bed i0 and urged rearwardly by means of a spring I 51 held by a rod I58 which is supported at the rear edge of the bed I6. The arm I55 is connected to the operating slide I49 by means of a link I59 and a pivot pin I60 (Figs. 7,

' l0, and

I68 are attached, in positions directed toward ,movement of the slides I61, I68.

each; other, -by means of screws I69. The slides I61, I68'are. slidable across the, face of the chute memberv I,I8, in channels; in therbacks of the retaining strips I22, I 7

The retaining slide I61 has a rearwardly-inclined ,endsurface I1.0,(Figs. 10 and 20) and the inner end .of the, escape slide I68 has a finger III of ;reduced; width, thereby forming a slot I12 which will permit the downward escape of one stud Din the channel I20 at each reciprocating Provision, is made of a pair 'of projecting pins I13,. I14. upon the enlarged forward end I of the operating slide I62 and upon the guide I63, respectively, for mounting a coiled spring I15 whereby the escape mechanism will be urged rearwardly (to the right in Fig. 16).

In order to slide the escape mechanism forwardly so as torelease the studs D at the desired intervals, provision is made of a link I16 pivotally connecting the rear end of the escape operating slide- I62 with the upper end of an escape lever pends in-the path of an abutment roller I carried by the pivot pin. I68 of the stud feed operating slide I49 (Fig. 10)..- Thus, the link I59 of the stud feed operating mechanism will serve to operate both the stud feed and the stud escape mechanisms.

Thelower end of the spring magazine H1 is seated upon the upper surface of a spring feed I8I (Figs. 9, 11, 18) which is secured in. slots I82 and I83 in the outer faces of the mounting blocks I21, I28, respectively. The spring feed I8! comprisesan inner coveryplate I84 and a bar I85 formed with a horizontal spring channel I86 in its inner face, .and a vertical entrance slotI 81 (Figs. 9, 19) in alignment with the ide channel I2I of the spring'magazine II1, whereby the springs may be fed from the magazine into the spring channel I86.

A spring feed slide I88 is guided in the channel I86- and is'provided with a stepped forward end I89 which serves as a backingfiange for the springs S. The forward end of the spring channel I86 is provided with a filler block I90, which serves as an abutment to limit the forward movement of the springs S, as they are fed forwardly one-byone by the spring feed slide I88.

The spring feed I8I' is provided with an outer cover plate I96awhich'is channelled on its inner face topermit the. operation of a spring stripper the lower arm of the bell-crank lever I93.

. I901) to be further. described. hereinafter.

The'spring feed slide I88 is operated from the main drive shaft 42 by means of a cam I 9I (Figs. 1 and 6). A follower 192 is mounted upon a bell- ;crank lever I93 swingably carried on a block I94 on the bed I8, and is held against the cam I9I by means of a spring I95 (Figs. 1 and 6), which is carried upon a bracket I96 upon the machine bed I6, andv connected to anear I91 on the end of The spring feed slide I88 and the upper arm of the bell crank lever I93 are connected by means of a link I98 and pivot pins I99, 200'.

The stud feed I35 and the spring feed I8I' are apertured in order to permit operation of the stud carrier 31 and the spring carrier 38 therethrough, whereby the studs D and the spring 5 may be applied tothe display cards C.

It will benoted that the, operating slide I49 of thestud feed I35 is provided with an oblong aperture 20.I (Fig. 18) so that it may reciprocate without causing any interference with the stud carrier 31.

Fastener closing mechanism The stud carrier 31 comprises a rod section 202 (Fig. 14) mounted in the end of a square reciprocating stud closing slide 203 and has a split resilient mandrel 204 projecting from its outer end which is adapted to fit resiliently within the projections of each stud D, whereby the studs D may be retained thereon and carried forwardly into engagement with the card 0.

Similarly, the spring carrier 38 comprises a hollow rod section 205 mounted in the end of a square reciprocating spring closing slide 206. The hollow rod section 205 embraces an inner rod section 201 (Fig. 14) which projects outwardly of the end of the hollow rod section 205 in the form of a reduced split resilient hollow end 208, thereby forming a spring chuck 209 which is adapted to resiliently engage over the center projections of the springs S so as to carry them forward into engagement with the card C. I

The stud closing slide 203 is guided in

slots

210, 211, respectively, in the upper ends of the

pedestals

14, 15, and the spring closing slide 206 is guided in

slots

212, 213, respectively, in the upper ends of the

pedestals

16, 11. The stud-and spring closing slides 203, 204 are thus supported in horizontal aligned relation for sliding toward and way from each other and are retained in their respective slots by means of capplates 214 and screws 215.

The closing slides 203, 204 and the stud and

spring carriers

31, 38 thereon are operated from the main drive shaft 42 by means of;

cams

216, 211 secured on the shaft 42, and having cam;

pieces 218, 219-secured to their sides, whereby they are rendered double-acting (Figs. 1, 5, '1). Provision is made of a pair of bell-crank

levers

220, 221, which are swingably mounted on blocks 222, 223, respectively, on the machinebed 10. The bell-crank

levers

220, 221 are provided with cam followers 224, 225, respectively, which are adapted to engage with the

cams

216, 211, and offset

lower arms

226, 221 carrying

cam followers

228, 229, which are adapted to engage with the

cam pieces

218, 219.

The upper ends of the bell-crank

levers

220, 221 are connected by means of universally pivoted lugs 230, 231, respectively, and links 232, 233 to one end of respective bell crank, levers; 234, 235 swingable on

vertical studs

236, 231 which are supported on the rear portions of the left hand pedestal base 11 and the right hand pedestal base 12 by

brackets

238, 239. The forward ends of the bell-crank

levers

234, 235 are connected to the stud closing slide 203,and the spring closing slide 206 between the respective pedestals by means of screw studs 240, 241 (Fig. 8).

The stud and spring closing slides 203 and 206 are urged toward the center of the machine by 'coiled

springs

242, 243 which are connected to the outer ends thereof by means of upstand ing pins 244, 245 (Fig. 2) and secured at their inner ends upon

stationary pins

246, 241 secured on the inner cap plates 214.

The springclosing slide 206 is provided with an outer extension 248 (Figs. 1 and 2) towhich is secured a rearwardly-extending horizontal arm 249, which carries an adjustable screw 250, provided with a lock nut 251 The'end of the, screw 250 is adapted to abut the outer surface of. the pedestal 11 in order to limit the closing movement of the slide 206 and the

spring carrier

242, 243, the precise location of the final clos-,

ing operation will be determined by the contact of the adjustable stop screw 250 with the pedestal 11.

It will be noted that the cam pieces 218 219 will engage the

followers

228, 229 during a relatively short interval at the beginning of the closing movement of the

carriers

31, 38 whereby said closing movement will be positively initiated. However, the final force of the fastener closing operation will be exerted solely by the closing slide springs 242, 243. and

spring carriers

31, 38 will be withdrawn by the action of the

cams

216, 211 upon the followers 224, 225.

In connection with the closing operation, it will be noted from an observation of the

cams

216, 211 in Figs. 5 and '7, that the followers 224, 225 will at first be permitted a small inward movement prior to the closing movement which is initiated by the cam pieces 218,219, whereby the spring mandrel 204 and thespring chuck 209 (Figs. 8 and 14) will engage with the stud D and the spring S, respectively, while they are still held by the stud feed slide 141 and the spring feed slide 188 as shown in Fig. 18. The

cams

216, 211 are shaped so that theywill then provide a dwell, or even permit aslight reverse movement, whereby withdrawal of the feed slides 141, 188 will be permitted, after which the

carriers

31, 38 will be fully advanced to closing position by the action ofthe'cam pieces 218,219, and the closing springs 242, 243.

Stripper mechanism The stud and spring strippers 148 and 1902)} from the main drive shaft 42 by means of an arm 254 (Figs. 1 and 6) which is swingably mounted in a bracket 255 upon the machine bed 10, and carries a follower 256 on the shaft 42.

The strippers 148, 1901) are" connected for simultaneous operation by means of a stud 258- (Figs. '1 and 8) and a link 259 connects said stud 258 with the arm 254. A coiled spring 260 is provided which is connected between the stud:

258 and an elongated projecting screw 261 (Fig.

1) carried by the spring magazine 111, whereby.

the follower 256 will be maintained in operative engagement with the periphery of the cam 251.

Operation In operation, the'stud magazine 116 will be filled with studs D, and the spring magazine 1 11 will be filled with springs S, and the operator'will insert a display card "C in the "card holder 24 in" such a position, determined by adjustment of the stop 31, that the perforations P of the card will be in alignment with the

apertures

35, 36 of the card holder 24 and shown in Fig. 8.

The clutch rod 16 will then be tripped so as to The stud engaged with a cam'251f' f the clamping plate 32, as

swing the clutch arm 68" downwardly aboutthe V pivot pin I0, (Figs. 1, 2, and 4) to pull it 'out'of contact with the head 57 f the bolt 65, thus permitting the spring-urged bolt 85 to enterthe slot 66 in the hub of the fiywheel"59; -Inasmuch as the bolt 65 is held in'the inner aperture of the clutch body 63, the drive shaft 42 Willbe rotated by the constantly rotating flywheel '59 aslong'as said bolt is engaged in the slot 56. The trip rod'IS will be-maintained in its tripped position by virtue of the engagement ofthe rear end98 of the clutch'release lever 96in the notch 99 of the trip rod I6 (Fig. 4) I This will cause the crank 50 to reciprocate the connecting rod 5I (Figs; land 2) and the pawl 53 so that the ratchet wheel? 39, theshaft'20 and the card holder 24 will be rotated in a step-by-step movement so as to bring each of the card perforations P successively into alignment with the stud carrier'31 and the spring carrier'38. v

Each rotation of the main drive shaft 42 will also rotate the cam I53 so as to push the arm I55 forwardly against the force ofthe spring- I 51, the latterserving toreturn-thearm I55 to its rearward position. Thiscauses' the arm I55 to oscillate so as to reciprocate the operating slide I49 bymea'nsof the link I58, and the stud feed slide'I4I will also reciprocate'ibecause of its connection with the operating; slide I49 by means of the screw I5I'j and the filler "piece I52.

Thus, during each step in the movern ent of the cardholder 24, the stud feed'slide I4Iwill'recip rocate to bring a stu'd-D'from'a positien'beneath the stud magazine I It toa position in alignment with the stud carrier sr-(Figs. Ligand-'10) it will be understood thatfthestud escape inech anism I6I will operateto release one' of the studs" D at a time sothat it will fall downwardly into position to be picked up by the stud feed slide I4 I. The studescape mechanism I-6I will be slid .forwardly at each rearward movement of th'estud feed" slide I41, this being accbmplished byithe link'I'IB and the escape lever-"I11 which will-be engaged by theroller I80attach'ed't'to the reciprocating link I59. 'The'escape mechanism" I6I will be returned to its, rearwardtposition by'the spring I15.

' The'spring 'feedslidesI88 (Figs. 6, 9 anti-.215).

will be actuated from the" main: drive shaft :42 by thecam I9I' (Fig; 1), the 'bell'crank lever I93,

and'the link I98, so as to operate'simultaneously. with the operation of the stud feed slide-MI" to bring a spring S from a position belowsthe spring magazine III into a position in alignment with the spring carrier 38. 'At' this-'time'the'rotation of the cams' 2I6', ZI'I, will permitthe' followers 224, 225 on the bell crank levers 220,-22I to drop into the initial portions of the cam recesses, thus acting through the links 232'; 233: and the bell crank levers 234, 235, topermit'the' springs 242,

243-to'move' the slides 203, 295 inwardly so as tinued rotation of thecams 2I0, 2-I'I-will permit a further drop of the followers 224, 225into the cam recesses under the influenceof the springs 242,243, and will simultaneously bring the cam pieces 2 I8, 2 I9 into engagement with the followers and close the stud and the spring upon the card C as shown in Fig. 12. However, it will be noted that the engagement of the cam pieces 2I8, 2I9, with-the followers228, 229, is of relatively short duration, so that said cam pieces will merely serve to positively initiate and accelerate the closing movement of the

carriers

31, 38, which is completed solely by the

springs

242, 243.

The engagement of the adjustable stop screw 250 with the pedestal 'I'! will limit inward movement of the spring carrier 58, and will determine the 'preciselocationin which the spring Sand the stud D are "finally closed,'this location being follower 255 (Figs. 1 and 6) to drop,thus permitting the spring 250 to act so that the strippers I48 and H101) will be swung downwardly so as to engage the carriers 31,-3 8, (Fig.'l2) thereby in-- suring' that neither the spring S nor the stud D will remain upon the carriers as they are withdrawnironithe closing position. h

"The 'str'ippers148 and I801) are provided because'a situation may sometimes occur wherein either the studcarrier Or the spring carrier will fail tc'pick'up' a spring or a stud, either because the supply in one of the magazines is exhausted, or for some other reason. It will be seen that if one of the snap fastener sections were applied to the cardin the absence of the other snap fastener section, the first snap fastener section would not be retained upon the card, but would remain upon its carrier; This would result in jamming of the machine if the strippers I48 and I?) were not provided to remove'the unass'embled snap fastener section from the carrier, and thus provide a clear'passage for the next spring or stud to be fed by the feed mechanism. I

After a stud l) and a spring S have been closed upon the card CQ' thereby forming an assembled snap fastener F; the

carriers

51, 38 will be withdrawnby the action of the cams 2I6, 2| 1 upon the followers 224, 225 in order to pickup the succeeding stud and spring, and the carrier 24 will be rotated another step in order to bring another perforation P into position to receivea stud and teners, whereupon the clutch release pin 94 will raise the cam 1105995 (Figs. 1 and 4) inorder to disengage the rear end 88331? the lever 96 from the clutch trip rod I5, thereby releasing the clutch arm 68 which will shift the bolt 65 and d'isengage the clutch 62. Releasing of the clutch arm 68 will also bring the lateral abutment I5 thereon into the path of the head 61 of the bolt 65'so that the drive shaft 42' will be brought to a positive stop. Simultaneously with raising of the cam nose 95, the cam projection93 on the control disk 92 will engage the nose I I 5 of the bell-crank lever I05, thereby forcing the rear end of the bellcrank lever to the left as seen inFig. 1, so as to shift to the right the annular groove 3 in the,

hold the clamping plate 32 in engagement with the card C.

One advantage of the improved carding machine herein disclosed is that it will rapidly and economically perform anoperation which has heretofore been slow and expensive;-

Another advantage is that the machine'will require no attention on the part of the operator excepting to insert the fresh cards, trip the clutch; and remove the filled cards. After a fresh card has been inserted in the holder 24, it will merely be necessary for the operator to trip the clutch, whereupon the machine will operate automatically to apply the, proper number of snap fasteners to the card, and then stop.

The operation of the machine is rapid, and it will be noted that the steps 'of inserting and rexr ovingthe cards may--be expedited by -;inserting afresh card behind the filled cardand then removing the filled card, so that the cards may be changed with a single motion of the operator's hand.

While there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure, but may be modified and embodied in various other forms without departing from its spirit; In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In a machine for applying snap fasteners t cards, a card holder, means for closing a snap fastener upon a card in said card holder including a stud carrier and a spring carrier supported at opposite sides of said card holder, said carriers comprising means for supporting a stud and a spring, respectively, devices for feeding successive studs and springs to said stud carrier and said spring carrier, respectively, mechanism for moving said card holder rotatively to bring different radially disposed portions of the card successively into position between said stud carrier and said spring carrier, and means for continually operating said closing means, said feeding devices, and said card holder moving mechanism in periodic timed relation, whereby a circular series of snap fasteners will be applied to the card.

2. The invention as defined in claim 1, in which said operating means includes a device for automatically stopping the machine after the completion of the application of the circular series of snap fasteners to the card, and a device for manually restoring said machine to operation.

3. The invention as defined in claim 1, in which said fastener closing means includes a pair of closing slides supporting said stud carrier and said spring carrier for closing and opening movement, a pair of operating springs providing a closing force upon said slides, and an adjustable stop for limiting the closing movement of one of said slides, whereby the fastener "springs and studs will be closed at a predetermined location in the machine.

4. The invention as defined in claim 1, 'ining a plate adapted to clamp a card in said card holder, mechanism resiliently urging said plate to clamp said card, and means for withdrawing said plate fromsa'ic'i'card after a predetermined number of closing perations by said fastener closing means, whereby the card in said card.

holder maybe replaced by another card. 7

6. The invention as defined in claim 1, in which said stud and spring feeding devices include a stud magazine and a spring magazine supported in positions ofiset from said stud carrier and.

said spring carrier, respectively, a stud slide for transferring the studs from said stud magazine to said stud carrier, and a spring slide for transferring the springs from said spring magazine to said spring carrier.

'7. In a machine for applying snap fasteners to cards, an elongated, horizontally disposed stud supporting carrier and an elongated, hori.

zontally disposed spring supporting carrier aligned therewith, means for reciprocating said carriers longitudinally to close a stud and a spring on a card in a predetermined verticalplane in right-angular relationship to the axes of said carriers, a holder for supporting a card in a predetermined lateral location between. said carriers in said plane, and means to apply the stud and the spring resiliently to said stud supporting carrier and said spring supporting carrier respectively prior to the closure on said card of the stud and the spring.

8. The invention as defined in claim '7, including devices for feeding successive studs and springs to said stud carrier and said spring carrier, respectively, and means for imparting stepby-step rotation to said card holder, whereby a circular series of snap fasteners will be applied to said card.

9. The invention as defined in claim 8, including means for operating said carrier reciprocating means, said feeding devices, and said card holder rotating means in timed relation, and a device for automatically stopping said operating means when said card holder has made one complete revolution.

10. The invention as defined in claim 9, including a plate for clamping said card in said card holder, and a device for withdrawing said plate from the card when the card holder has made one complete revolution.

11. In a machine for applying snap fasteners to cards, a pair of aligned carriers comprising resilient means for frictionally holding complementary fastener sections, a holder for supporting a card in a predetermined transverse plane between said carriers, means for simultaneously reciprocating said carriers toward and away from each other a predetermined number of times to close fastener sections carried thereon upon a card in said holder, a stripper normally out of operative engagement with one of said carriers, and means for holding said.

j being formed with aligned pairs of apertures equidistant from the axes of said shafts, whereby springs and studs may be applied to opposite faces of the card.

13. In a machine for applyingsnap fasteners to cards, a horizontally disposed, slidably mounted, elongated stud carrier, a horizontally disposed, slidably mounted, elongated spring carrier, and means for simultaneously reciprocating said carriers horizontally toward each other a predetermined number of times for closing springs and studs carried thereby, said stud carrier comprising an annular end surface and a fixed resilient mandrel extending outwardly of said surface and adapted to enter the back of a stud to frictionally hold the same prior to its closure ona spring. 7 I

14. In a machine for applying snap fasteners to cards, a horizontally disposed, slidably mounted, elongated stud carrier, a horizontally disposed, slidably mounted, elongated spring carrier, and means for simultaneously reciprocating said carriers horizontally toward each other a predetermined number of times for closing springs and studs carried thereby, said spring carrier comprising an annular end portion and a fixed resilient chuck secured centrally in'said end portion and adapted to embrace a portion 16 of ,a spring to' frictionally hold to its closure on a studs 15. In. a -machine for applying snap fasteners v to cards, a stud feed comprising a bar having a horizontal stud channel, an entrance channel intersecting said stud channel: from above, and a stud feed slide in said stud channel,.-said slide. having a notched.end portion of reduced thickness, for;v engaging the central projection .ofqa

stud, and said slide further having an upper edge portion of reduced thickness rearward of and communicating withsaid notched endportion for supporting a stud; and means for reciproeating said feed slide in said stud channel whereby a stud in said entrance channel and supported upon the upper edge portion of said slide will drop into the stud channel, and said notched end will feed said stud along the stud channel.

LM AXKIESSLING.

EF RENCE CITED The following references are of record in the file of this patent:

550,605 France Dec, 19, 1922 the same prior 2' Certificate 2,: Correction Patent No. 2,575,019 November 13, 195! MAX KIESSLING It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows:

- Column 14, line 11, for stripers reed strippers; line 19, for perations read operations;

and that the said Letters Patent should be read as corrected above, so that the same may conform to the record of thjcase in the Patent Ofiice.

Signed and sealed this 26th day of February, A. D. 1952.

'rnoms F. MURPHY,

Assistant Uommiasioner of Pain.