US2823388A

US2823388A - Slide fasteners

Info

Publication number: US2823388A
Application number: US428902A
Authority: US
Inventors: Robert I Prupis; Bashover Albert
Original assignee: Conmar Products Corp
Current assignee: Conmar Products Corp
Priority date: 1954-05-11
Filing date: 1954-05-11
Publication date: 1958-02-18
Anticipated expiration: 1975-02-18

Description

Feb. 18, 1958 R. 1. PRuPls ErAL 2,823,388

SLIDE FASTENERS 4 Sheets-Sheet l Fi1ed May 11. 1954 ALLA INVENTORS ROBERT LPs-wma No ALU-:mensnovu-:R

Feb. 18, 1958 R, mums ETAL 2,823,388

SLIDE FASTENERS 4 sheets-sheet 2 Filed May 11. 1954 INVENTORS ROBERT l. PRUMS ma ALBERT BASHOVER A-r-roRN Ys,

Feb. 18, 1958 R. l. PRUPls ETAL 2,823,388

SLIDE FASTENERS Filed May l1. 1954 4 Sheets-Sheet 3 A L A A L n unan. LvAvAvq i n VLYAYAVALYLTUAVAvLVAZI NAnvAv/.VAVAW INVENTORS RQBERT PRUMS In ALBERT AsHoveR BY l #V41 d l ATTQR YS Feb. 18, 1958 R. l. PRUPls ETAL 2,823,388

SLIDE FAsTENERs Filed May 11. 1954 4 sheets-sheet 4 IN V EN TRS ROBERT l. PRUPlS Aun ALBERT BASHQVER ATTQRNEYS United States Patent O SLIDE FASTENERS Robert I. Prupis, West Orange, and Albert Bashover,

Livingston, N. J., assignors to Conmar ProductsCorporation, Newark, N. J., a corporation of New Jersey Application May 11, 1954, Serial No. 428,902" 2 Claims. (Cl. 2-234) This invention relates to the application of slide fasteners to garment closures.

One of the methods commonly'employedin applying slide fasteners to garments 'having closures, Such as ily fronts in trousers, is shown in U. S. Letters Patent to Markin Number 2,155,795, granted April 1939. The garment manufacturer purchases pre-cut or individual slide fasteners, with the sliders separate or off the Stringers. The slide fasteners each comprise a pair of stringers of standard length, the fastener elements of which are interlocked or meshed. The stringers are stripped apart, one Stringer being sewn to an inner ily Strip and the second Stringer being sewn to an outer ily strip. A pair of the ily strips with attached Stringers are then sewn to the left and right halves of the trousers, after which a slider is attached tothe Stringers to mesh the elements. The lower ends of the Stringers are then stapled, or otherwise connected together.

This method has a number of limitations and disadvantages. The garment manufacturer has'to keep a large stock of slide fasteners on hand to meet his needs. lt is the Standard practice of slide fastener manufacturers to produce fasteners in lengths having one-half inch multiples; that is, seven inches, seven and one-half inches, eight inches, etc. ready for variance in length of the ily fronts from lot to lot`and therefore must stock many lengths. Moreover, many trouser ily fronts require slide fasteners having lengths to tolerance as close aS one-eighth or even one-Sixteenth of an inch. In such case the purchased slide fasteners must be cut down to the exact length required. This is time consuming, involves additional'labor, and is costly.

Because of the foregoing it has been suggested that instead of attaching a pre-cut Stringer to a fly strip, a continuous or substantially endless length of slide fastener Stringer or chain (chain is used to refer to a pair of meshed or interlocked stringers) be attached or sewn to a Series of similar ily strips. The ily strips couldbe arranged end to end in substantially abutting relationship as they are fed into the sewing machine, so that the` continuous length of Stringer or chain wouldconnectthe ily strips together. The continuous length ofl Stringer or chain could be cut transversely between adjacent strips` so that each fly Strip would have its own appropriate length of Stringer attached thereto'. Only the'required length of Stringer for a particular length of. ily strip would have to be used. It no longer wouldbe-necessary for the garment manufacturer to Stock the manyv different standard pre-cut lengths of fasteners. Furthermore, the additional labor required to shorten a Standard length of fastener to the exact length required'would be no longer necessary.

However, the problem is not so easily Solved, because there is a need for tape ends devoid of fastener.l elements.V

With separate stringers sewn to ily strips as rst described above, each Stringer is provided with a tapefendthat^ is toA say; a section ofthe Stringer opposite-the bottonrpprr The garment manufacturer must'bel 2,823,388 Patented Feb. 18,v 19,58

ice

tion of a ily strip is devoid of fastener elements. The need for this arises from the practice of stitching across the bottoms of the ily strips when the strips are sewn to the trouser front halves. If the lowermost fastener elements were directly sewn down to the trouser fronts, the slider could not be added to the Stringers in a subsequent operation. Heretofore, tape ends have been provided by gap spacing the Stringer as it is made on the. scoop machine in the slide fastener manufacturing process.

Now when using continuous Stringer or chain as proposed, instead of using individual pre-cut stringers, there are no tape ends devoid of fastener'elements, and the proposal therefore has not been found useable in the industry. Indeed, the proposed process is completely unworkable and worthless without tape ends.

In accordance with our invention, tape ends are provided by removing a group of fastener elements from the gap-less Stringer or chain after the Stringer or chain in continuous length form has been sewn to the ily strips. Preferably, the formation of the tape ends is accomplished by a simple cutting or chopping operation through the tape near the edge to which the fastener elements are secured. We have provided a simple but eifective means for removing fastener elements to provide the tape ends. Preferably, the means for removing the Segment of fastener elements is also combined with means for simultaneously cutting the continuous Stringer or chain across its entire width, in order to form a ily Strip having an appropriate length of attached Stringer with a desired length of tape end.

To accomplish the foregoing objects, and other objects which will hereinafter appear, our invention resides in the novel method and means for providing slide fastener closures for garments as are hereinafter more particularly described in the following Speciiication, and Sought to be deilned in the claims. The specification is accompanied by drawings in which:

Figs. l, 2 and 3 are plan views illustrating steps in a method for providing a plurality of outer ily strips with appropriate lengths of attached Stringer from a continuous or substantially endless length of Stringer;

Fig. 4 is a greatly enlarged cross-section taken approximately in the plane of line 4 4 of Fig. 2',

Fig. 5 is a plan view of a nished ily strip having a Stringer of appropriate length sewn thereto, said Stringer being provided with a tape end;

Figs. 6 and 7 illustrate the steps in the method for providing inner ily strips with appropriate lengths of attached Stringer and tape ends from a continuous length of Stringer;

Figs. 8 and 9 show another form of the invention. wherein the fly strips are provided with appropriate lengths of Stringer from continuous chain, that is, a meshed pair of stringers;

Fig. l0 is a plan View of an outer ily strip having an appropriate length of Stringer sewn thereto in accordance with the method illustrated in Figs. 8 and 9, the second Stringer having been prepa-red for attachment to an inner ily'strip;

Fig. 1l is a perspective view showig Still another form of the invention wherein both the inner and outer ily Strips have Stringers attached thereto from continuous chain;

Fig. l2 is a greatly enlarged cross-Section taken ap'- proximately in the plane of line 12--12 of Fig. ll;

Fig. 13 is a View Simila-r to Fig. 12 showing how tape ends are provided for the stringers attached to the ily strips;

tape ends, or removing fastener elements, said device also including means for transversely cutting the fastener;

Fig. 16 is a partial perspective view of the die constituting a part of the device shown in Fig. l;

Fig. 17 is a side elevation, partly in section, showing the manner in which a slide fastener is positioned in the die preparatory to the removal of a Segment of fastener elements;

Fig. 18 is a View Similar to Fig. 17 showing the manner in which the fastener elements are removed to provide the desired tape end; and

Fig. 19 is a perspective view showing a sewing machine m-odiiled to practice that form of the invention shown in Figs. ll, 12 and 13.

In all forms of the invention generically, the tape of a Slide fastener Stringer S of continuous length (which may also be one of a pair of interlocked stringers S and S) is attached to a Series of similar ily strips (generally designated F with modiiiers) to Ithereby connect the strips in substantially end to end relation. The Stringer is cut transversely intermediate adjacent ily strips, and a seg ment `of fastener elements is removed from the Stringer opposite the bottom portion of each ily strip to provide a tape end `on the attached Stringer.

Referring now more particularly to Figs. l to 4, a slide fastener Stringer S of continuous or substantially endless length is attached to a series of similar ily strips F, as by a line or lines of stitching 20. The continuous Stringer S is unwound from a roll, or taken up from a container, which is kept adjacent the sewing machine (not shown), and fed into the sewing machine over the ily strips. The operator feeds the ily strips, those illustrated being outer ily Strips and designated Fo, Fo', F0", etc., into the machine So that the top edge 22 of a second ily strip immediately follows the bottom edge 24 of a preceding fly strip. The ily strips are connected to each other in substantially abutting or end to end relation by means of the unbroken line -or lines of stitching 20 through the continuous length of Stringer and the adjoining ily strips.

The slide fastener Stringer S may be of any well-known variety, and comprises a tape 26 having a beaded edge 28 (Fig. 4) about which the interlockable fastener elements 30 are clamped or secured in spaced relation. The beaded edge 28 may be formed by sewing cords upon opposite edges of the tape 26, or the beaded edge may be formed in the process of weaving the tape, as is well-known in the art. The fastener elements 30 are disposed on the tape edge of the Stringer S throughout its length without any gap spaces between groups of elements. If the tape is made -of a thermoplastic or heat-scalable material, the continuous Stringer may be attached to the ily strips by a heat-sealing device or roller.

After a suitable run of ily strips now connected to each other by means of the continuous Stringer S, the Stringer S is eut transversely between each pair of adjoining fly strips. Thus, each ily strip is provided with a matching length of Stringer attached thereto. To provide the requisite tape ends on each Stringer attached to a ily strip, the bottom porti-on of each ily strip is folded back (meaning downward and outward to the left as shown in Figs. 2 and 3), and a Short segment of the fastener elements 30 (approximately three-quarters of an inch in length in common practice) is removed from the edge of the tape 26 to provide a tape end 32.

In the preferred form of the invention, the removal of fastener elements to provide the desired tape end is accomplished by cutting through the tape 26 longitudinally along a line 34 (Fig. 4) near that edge yof the tape carrying the fastener elements. The cut is made closely behind the legs of the fastener elements. A short transverse cut also is made along a line 36, shown in Fig. 3, which extends from the extreme beaded edge of the tape to the cutting line 34. The cutting operation removes a Small group of fastener elements together with the section of the beaded edge carrying the same.

, cut tothe desired length,

Instead of removing the small group of fastener elements after the continuous Stringer has been transversely cut between adjacent ily Strips, the elements may be removed prior to the transverse cutting with its consequent sveparation of the ily strips. If they are done separately, either may be done iirst. It is preferred, however, to Simultaneously remove the fastener elements and to separate the ily Strips, both being done in a single cutting operation. In this manner the transverse cut across the entire width of the tape between ily strips serves also to complete the line of cutting, parallel to the cutting line 36, required to remove the Segment of fastener elements. This is best shown in Fig. 3.

As a result of the described procedure, each outer ily strip is provided with a matching length of tape attached thereto, said tape having fastener elements substantially along the entire length of the tape, except at the bottom portion thereof where just a tape end 32 is provided. This product, which is shown in Fig. 5, is then ready to be sewn toa trouser front.

The same procedure outlined above is carried out to provide the opposite or inner ily strips with appropriate lengths of Stringer having the desired tape ends. This is illustrated in Figs. 6 and 7, the Successive Strips being designated Fi, Fi', Fi, etc. Since the procedure is essentially the same as described with respect to the outer flies, a more detailed illustration of the steps in the method is believed unnecessary. The only difference be-` tween processing the inner and outer fly strips resides in the orientation of the Stringer as it is sewn to the series of Strips. With the inner ily strips, t-he fastener elements 30' of the Stringer S are disposed away from the substantially straight edges 38 of the strips; whereas, with the outer ily strips, the Stringer S is disposed so that the fastener elements 30 are facing or adjacent the substantially straight longitudinal edges 40 of the Strips. The folding back of the ily at the time of the cutting operation is illustrated at 39 in Fig. 7.

Another form of the invention is illustrated in Figs. 8 and 9. In this example, instead of using a Single Stringer, the slide fastener is applied in the form of continuous chain; that is, a pair of Stringers S and S the elements of which, 42 and 42', are in interlocking or meshing engagement. As shown, the tape 44 of the Stringer S is sewn to a series of ily strips by a line or lines of stitching 46, the ily strips illustrated being outer ily strips designated Fo, Fo', Fo, etc. After the series of ily strips are connected to each other in abutting relationship by the unbroken line or lines of stitching 46, the chain may be cut transversely between adjacent ily strips.

Both stringers, S and S', are provided with tape ends 48 and 48 by removing a segment 50 (Fig. 9) of fastener elements from both stringers opposite the bottom portion 52 of each ily strip. Preferably, the segment 50 is removed by cutting or punching directly through the tapes,44 and 44 in substantially the same manner as previously described with respect to Figs. l to 4. When removing the segment 50, the underlying portion of the ily strip must, of course, be folded back from under the fastener elements, as shown at 51 at the top of Fig. 9, in order not to damage the underlying ily strip.

Instead of removing the fastener elements after or be fore the continuous chain has been transversely cut between adjacent ily strips, it is preferred to accomplish both these cutting operations simultaneously. A suitable device for performing both operations simultaneously is shown in Figs. 15-18, and is described later.

The product resulting from the described method is Shown to include the strip Fo in Fig. 9. The Stn'nger S is sewn to the strip Fo', the unsewn Stringer S' being in meshing engagement with the Stringer S, but having no ily strip as yet. Both stringers, however, are already and both stringers are provided with tape ends 48 and 48. The unsewn Stringer S' may be stripped or unmeshed from the Stringer S, as Shown in Fig. 10, whereupon the stringer S' may be sewn to an opposite or inner ily strip. If desired, the stringer S' may be left in meshing engagement with the sewn stringer S, and in this condition the stringer S' of the assembly may be sewn to the inner fly strip. The meshed stringers are stripped apart preparatory to sewing the stringerbearing ily strips to the trouser front halves. This latter variation possesses the advantage of keeping corresponding work pieces together during most of the stages of processing prior to sewing the stringer-bearing ily strips to the trouser front halves.

Still another form of the invention is shown in Figs. 11, 12 and 13. A continuous length of chain comprising a pair of stringers S and S* having .their fastener elements 54 and 54' in meshing engagement is sewn to a series of both inner and outer ily strips before t-he chain is cut between strips. The stringer S is attached to a series of ily strips, as by means of a line or lines of stitching 56 passing through the stringers tape 58. The fly strips may be the outer fly strips, designated Fo, Fo', etc. (just as in the case of Fig. 8). The chain-connected series of outer ily strips is-then fed into a sewing machine over the inner fly strips, designed Fi, Fl'. etc. As illustrated in Fig. 11, the inner ily strips are fed into the sewing machine in abutting end to end relation, the top 60 of one strip immediately adjacent the bottom 62 of the preceding strip. Also, the top and

bottom edges

60 and 62 of each inner fly strip are aligned with the top and bottom edges, 64 and 66, of the outer ily strips so that one pair of outer and inner strips are sewn to the same section of the continuous chain. In sewing the endless meshed stringer S' to the inner ily strips Fi, Fi', etc., the outer ily strips are individually folded back out of the path of the machines needle as the work passes beneath the presser foot of the sewing machine, so that the line of stitching 56 will not also pass through the overlying outer ily strips. The resulting product'consists of a series of outer fly strips sewn to the chains stringer S and a series of inner' fly strips. sewn to the chains stringer S', with the stringers of the chain in meshing engagement, and with each corresponding pair of inner and outer ily strips attached to the same section of the continuous chain.

Referring now to Fig. 19, we there show a sewing machine modified to fold back the outer ily strip as the work passes beneath the presser foot and needle, as above described. The sewing machine may begenerally conventional including the usual presser foot 150 carried by a post 152, and a needle 154 carried by a needle bar 156, all at the end 158 of a typical sewing machine arm, not shown. In accordance with our invention a deflector or plow 160 is shaped to overlie the stringer S'and ily F1 at a point ahead of the presser foot 150. The deilector then curves upward and outward to raise and move aside the free edge 162 of the fly Fo. The stringer Siremains meshed with the stringer Si and lies'ilat over the bed of the sewing machine. The upper end oftheideilector 160 is secured to the postf152 as indicated at 164. In eifect it' forms a part ofv a presser foot assembly. This has the advantage that when the presser foot is raised preparatory to starting new material in the sewing machine, the dellector 160 is simultaneously raised.

In the' preferred yform `of the invention, the outer and inner ily strips are provided with-tapeends by removing a segment of fastener elements adjacent the bottom portions ofeach pairof ily-stripswhile the `fastener elements are in interlocking or meshing engagement.v This may be accomplished, as shown-in Fig. 13, by iirst folding back the portions of-ily strips which overlie and Yunderlie the fastener elements atthose areas where it is desired to provide the tape ends, and then cutting the

tapes

58 and 58 longitudinally alongY the

lines

68 and 68 and transversely across the chain between the lines 68 and 68', the transverse cuts being spaced apart adistance equal to the length of tape ends desired. In other words a segment like thesegrnentA 50inr Fig. 9 isv punched"out; both ilies beingfolded outward to leave only the meshed chain' at the center during the punching step. The'mech-y anismcf Figs. 15'18 preferably is employed, the'punching operation being accompanied by a simultaneous severance of the chain across its entire width between the-successive pairs of ily strips. The fastener elementsrv are then disengaged or unmeshed, whereupon the outer andinner ily strips are provided with appropriate lengths of attached stringers having tape ends 70 and 70', as shown in Fig. 14.

It will be understood, of course, that whether the outerV or inner lly strips are firsty attached to a continuous stringer is a matter of choice. If one series of similarlly strips is attached to one stringer, the other and opposite series of ily strips is attached to the other stringer.

Figs. 15 to 18 show the mechanism used in the methods ofFigs. 8 to 1.4. This is designed to remove a segment of meshed fastener elements from a continuous length ofchain and to simultaneously sever the chain acrossits.

entire width.

As shownV in Fig. 16, a stationary die 72 is provided with a pair of spaced parallel cutting edges 74 and 76. Thecutting edges 74 and 76 are spacedapart a distance slightly greater than the width of the meshed fastener. elements in the chain being processed. A cuttingiedge` 78 is provided between and connecting the cutting' edges 74 and 76.. They are preferably at right angles. A. fourth cutting edge 80 is provided between the cutting edges74 and' 76 and substantially parallel to the cutting edge 78. The distance between the cutting edges 78 and' 80 is substantially equal to the length ofthe tape and desired, a common dimension being` three-fourths of an inch. The cutting edges 74, 76, 78 and 80 are all in the same horizontal plane.

When it is desired to sever thechain transversely across its entire width simultaneously with the removal of fastener elements, the die is formed with additional 'cutting edges 82' and 84 extending laterally on each side of the: cutting edge 80 and in the same horizontal plane. The t-otal length of the

cutting edge portions

82, 80 andA 84 is slightly greater than thewidth of the chain, (that is, the two stringers as meshed). The die block 72 is provided with an aperture 86 leading from the cutting edges 74, 76, 78 and'80 down through the die block to facilitateA the disposal of the successive segments being removedfrom the chain. To simplify the grinding 4of the diel block 72, which is set in an opening 88 of a plate 90,'I the die block preferably is made-in two halves, the split line being indicated at 92, 92.

A pair of work locating members or blades 94 and 96 (Fig. 17) are provided, one on each side of the cutting edges I4-and 76, respectively. The locating blades the die blocks to engage, hold and properly position the fastener elements which are to be'removed from the continuous length of slide fastener.

The blade 94 is in the form of a small plate thickened' at its lower end to provide an abutment 98 on its under-` side adapted to engagea shoulder 1.00 formed on the die block.. Similarly, the blade 96 is formed with an abutment 102adapted to engage a shoulder 104 on the other side of the die block. Theblade 94 is provided'with a Vlateral extension on each side, which may take the

formI connecting springs

110 and 112. The springs urge the'

abutments

98 and 102 into engagement with the

shoulders

100 and 104, respectively, asshown'in Figs. 16 and 17,l because the outside Walls of the die slope toward one 94" and 96 extend lengthwise of, and parallel to the cutting edges 74 and 76.4 The blades are resiliently mounted onr another, and the blades assume the same slope. In this inner position, the edges 114 and 116 of the blades are dispose-d a little above the plane of the cutting edges, and they resiliently engage, locate and hold the

fastener elements

118 and 118 of the pair of meshed stringers S and S.

After positioning a segment of chain between the locating

blades

94 and 96, as shown in Fig. 17, a movable punch, which may be a block 120 having a simple fiat bottom face 122, is moved downwardly against the die 72. The punch engages the fastener elements and depresses the locating blades, as shown in Fig. 18. The

tapes

124 and 124 of the stringers S and S' then are eX- posed to the cutting edges 72, 74, 76 and 80, which act to cut or chop out a segment of meshed elements. At the same time, in response to the punch action, the

additional cutting edges

82 and 84 sever the

tapes

124 and 124 transversely across their widths. In this manner, the chain is completely severed atthe same time that the segment of fastener elements is being cut out of the chain.

If a fastener element is nicked or cut by the cutting edge 78 and 80, no harm is done to the finished product. The segment -of fastener elements thus cut or chopped from the chain drops down through the aperture 86 where it is received in a suitable container (not shown). When the punch 120 is raised, the

springs

110 and 112 cause the

locating blades

94 and 96 to move back to their upper locating and holding position, the

flanges

98 and 102 engaging the

shoulders

100 and 104 to limit the movement of and properly position the blades for work-engaging position.

As an added refinement to further aid in positioning the chain in the die, the die may be provided with vertically disposed

guide members

119 and 121 at each end of the cutting portions of the die. The

members

119 and 121 are formed with locating grooves or tracksv 123 and 12S, respectively, dimensioned to receive the meshed fastener elements. The members are spaced apart further than the length of the punch 120, and do not interfere with the punch action.

A suitable press assembly for the described die block and punch is illustrated in Fig. l5. The block and punch must be relatively movable, and in the present case the block is stationary and the punch is moved. The plate 90 in which the die block 72 is set is secured by any suitable means to a pedestal 126. The pedestal acts as a base for a hollow vertical standard 128, upon which is supported a horizontal arm 130. The arm may be so attached to the standard 128 as to afford vertical adjustment. The arm 130 has secured thereto a bracket 132 upon which is set a solenoid 134. The lower end of the core (not shown) of the solenoid is connected to the upper end of the shank 136 of the punch block 120. An aperture is provided in the horizontal arm 130 to slidably receive the shank 136. A restoring spring 138 may be disposed around the punch shank, one end bearing against the top of the arm 130 and the other end bearing against an insulated flange on the solenoid core. compression spring 138 thus serves to quickly return the punch block to its Iupraised position. The solenoid is connected to a suitable source of current (not shown) by means of a power cord 140 extending between the solenoid and the source of current, the cord preferably passing through the hollow standard 128. A foot pedal switch (not shown) may be provided to actuate the solenoid which, in turn, causes the punch to strike downwardly against the die.

For clarity in illustration, only the meshed stringers have been shown in Figs. 17 and 18, the outwardly folded y strips being omitted. It will be understood, of course, that a series of fly strips is first sewn to one or both stringers as the chain is processed, the attached y strips being folded out from beneath or over the fastener elements, as shown in Figs. 9 and 13.

The.

It is believed that our improvements in the attaching of stringers (or chain) to ily strips and providing tape ends for the stringers, as well as the advantages resulting from said improvement, will be apparent Afrom the foregoing detailed description. Closures are prepared for garments in a greatly improved manner, and the necessity for stocking large quantities of standard length, pre-cut fasteners is eliminated. The desired sequence of fiy strips is maintained by means of the continuous Stringer (or chain) and the work of the sewing machine operator whose task it is to prepare fly strips with closures, preliminary to incorporation into a garment,'is greatly simplified.

It will be apparent that while We have shown and described our invention in several preferred forms, changes may be made without departing from the scope of the invention as sought to be defined in the following claims. The method disclosed in connection with Figs. 1-10 and also the method of Figs. 11-14 with a particular way of removing the fastener elements, are not claimed herein, being claimed in our parent application Serial No. 195,652, filed November 14, 1950, now Patent No. 2,697,227, of which the present application is a continuation-in-part. The apparatus shown in Figs. 15-18 is not claimed herein, it being claimed in application Serial No. 423,452,`filed April 15, 1954, now Patent No. 2,777,517, which application is a division of the aforesaid parent application Serial No. 195,652, now Patent No. 2,697,227. The present application is directed to the method of Figs. ll-14, without limitation to a particular way of removing the fastener elements.

We claim:

l. In the manufacture of garments having an opening closure therefor provided With a slide fastener of the type comprising stringers formed of tape having spaced, interlockable fastener elements secured to an edge thereof, the method comprising attaching the tape of one of a pair of interlocked slide fastener stringers of continuous length to a series of fly strips, said fly strips thereby being connected to each other in substantially end to end relation by said continuous attached Stringer, attaching a series of opposite y strips to the tape of the second Stringer while said stringers are interlocked with each other, cutting both of said stringers intermediate the fly strips and removing a segment of interlocked fastener elements from said stringers opposite the bottom portion of each of said fly strips.

2. In the manufacture of garments having an opening closure therefor provided with a slide fastener` of the type comprising stringers formed of tape having spaced, interlockable fastener elements secured to'an edge thereof, the method comprising attaching the tape of one of a pair of interlocked slide fastener stringers of continuous length to a series of similar y strips, said liy strips thereby being connected to each other in substantially abutting end to end relation by said continuous attached Stringer, attaching a series of opposite fly strips to the tape of the second Stringer while said stringers are interlocked with each other, cutting both of said stringers intermediate the y strips and simultaneously removing a segment of interlocked fastener elements from said stringers opposite the bottom portion of each of said fly strips.

References Cited in the file of this patent UNITED STATES PATENTS 2,301,064 Meitner Nov. 3, 1942 2,612,949 McDaniel Oct. 7, 1952 2,623,214 Yafe Dec. 30, 1952 2,697,227 Prupis et al Dec. 21, 1954 OTHER REFERENCES Mens Clothing, published by the Anglo-American Council on Productivity (page 25, paragraph 280 clted), June 1950.