US2339179A - Apparatus for making corded-edged textiles - Google Patents

Apparatus for making corded-edged textiles Download PDF

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US2339179A
US2339179A US425227A US42522741A US2339179A US 2339179 A US2339179 A US 2339179A US 425227 A US425227 A US 425227A US 42522741 A US42522741 A US 42522741A US 2339179 A US2339179 A US 2339179A
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fabric
cord
hem
rolls
adjacent
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US425227A
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Loeb Rudolf
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B25/00Sewing units consisting of combinations of several sewing machines
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B35/00Work-feeding or -handling elements not otherwise provided for
    • D05B35/02Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B29/00Pressers; Presser feet
    • D05B29/06Presser feet
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05DINDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00Applied objects or articles
    • D05D2303/08Cordage
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05DINDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00Operations on the work before or after sewing
    • D05D2305/02Folding
    • D05D2305/04Folding longitudinally to the sewing direction
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00Domestic or personal
    • D10B2503/02Curtains

Description

Jan. 11, 1944. LOEB 7 2,339,179
APPARATUS FOR MAKING CORDED-EDGED TEXTILES Filed Dec. 31, 1941 4 Sheets Sheet 1 Jan. 11, 1944. LQEB 2,339,179 I APPARATUS FOR MAKING QORDED-EDGED TEXTILES Filed Dec. 31, 1941 4 Sheets-Sheet' 2 I v filweizig J .4 award I IR.LOEB r 2,339,179
APPARATUS FOR ,MAKING CORDED-EDGED TEXTILES Filed Dec. 31, 1941' 4 Sheets-Sheet' 3 nab/0 i066. zj win g6 Patented Jan. 11, 1944 UNITED STATES PATENT OFFICE APPARATUS FGR MAKING CORDED-EDGED TEXTILES This invention relates to apparatus for making corded-edged textiles, such as curtains, drapcries, and the like, of the general character disclosed in my prior United States Letters Patent No. 2,245,285, dated June 10 1941, wherein a hem of predetermined width is formed along one or more of the marginal edges of the article, for example, along the two opposite vertical edges of a hanging drape, although the hem may be also applied to the heading and bottom edges if desired, and wherein a cord is enclosed and anchored in the hem, tightly, at the extreme finished edge of the drape, as and for the purpose set forth in said patent.
The object of the present invention is to provide an efficient apparatus for forming the hem, inserting the cord in the hem, forcing the cord into the extreme outer edge of the hem, and for stitching the drape through the folds of the hem and the underlying fabric of the drape, at the inner edge of the hem, to form the cord-enclosure, and through the primary fold and the underlying fabric, immediately adjacent the enclosed cord, to anchor the cord tightly in the,
drape, to obviate any relative movement between the cord and the drape fabric, along the edge of the drape, so that the edge of the drape will not wrinkle and will hang straight.
In the accompanying drawings:
Fig. l is a general side view of the apparatus;
Fig. 2 is a perpendicular plan View looking in the direction of the arrow, Fig. 1;
Fig. 3 is an enlarged fragmentary plan view immediately above the work table;
4 is an enlarged front elevation of the hem-folding mechanism;
Fig. 5 is an enlarged front elevation of the cord positicning mechanism;
Fig. 6 is an enlarged plan view of the hem and cord-pulling mechanism;
Fig. '7 is a sectional elevation taken on the line 'l-'.l, Fig. 6;
Fig. 8 is a perspective view of the hem-folding and cord-inserting means;
Fig. 9 is a perspective view of the cord-positioning means;
of hem-puller.
As shown in Figs. 1, 2 and 3, for example, of the aforesaid prior Patent No. 2,245,285, and as shown in Figs. 3, i, 5 and 9 of the drawings in the present case, a textile article in the form of curtain or drape is composed of a suitable fabric A and is provided with a hem a of predetermined width. The hem a is composed of a marginal portion of the fabric A folded laterally upon itself, and constitutes a primary fold or main flap a which lies in superposed relation to the main body of the article, parallel to the finished edge thereof. The extreme free edge of the primary fold a constituting a secondary fold or subflap a is reversibly folded and laid in the hem a between the primary fold a and the main body of the fabric A, where it is held in place by one or more rows of stitches b which pass through the superposed hem folds a and a and the underlying fabric A, inwardly from and parallel to the finished edge of the article.
Within the hem a, immediately adjacent the finished edge of the article, is a cord C, which is confined within a longitudinal cord enclosing pocket a The enclosure 11 is formed in the hem a and extends along the extreme outer edge of the article. The cord-enclosure a is completed by a row of stitches b (Figs. 3 and 9), which pass through the primary fold a and the underlying fabric A, immediately adjacent the inner side of the cord C, to bind the fabric of the cordenclosure a firmly around the cord C, to prevent wrinkling of the fabric along the edge of the article and to anchor the cord in the hem or against relative longitudinal and lateral movement between the two.
In order to form the hem a, a work table I is provided with a fabric-folder 2 (see Figs. 4 and 8) which comprises a flattened spirally-bent plate, having one flat portion 3 lying on the work table I, and a plurality of successively superposed vertically spaced flat portions 4, 5 and 6, joined together successively at their opposite ends by curved portions 1, 8 and 9, and with the terminal end 10 of the inner flat portion 5 bent back upon said portion 5. The above arrangement forms a bottom channel II for the fabric A of the article, a top channel l 2 for the primary fold a of a hem a, and an intermediate channel l3 for the secondary fold a In one end of the intermediate channel l3 adjacent the turn 9, and spaced from said turn, is a vertical partition M, which forms a guide opening l5 for the cord C, to place said cord within the hem it immediately adjacent the outer edge of the hem, where the fabric passes around the turn 9 from the channel I to the channel l2. Asthe fabric 1A advances in the direction of the arrow 2 (Fig. 3), the marginal portion along one edge thereof advances into the folder 2 and the folds a and o are thereby automatically folded in. At the same time the cord C is laid in the hem a adjacent the outer edge thereof.
As the folded fabric A, with the cord C therein, leaves the folder 2, the inner edg of the hem a, as formed by the secondary fold a is pressed down flatly and the fabric is creased at the turn of the fold by a resilient presser finger l6 which is secured to or formed as a part of the folder 2, and which extends rearwardly and downwardly therefrom.
As the folded inner edge of the'hem a leav s the presser 16, it passes under a vertically-reciprocating needl bar of a conventional type of sewing machine B, having the usual shuttle or ether stitch-locking means and feeding mechanism (not shown), and which, through its needle and cooperating stitch-forming mechanism, forms the row of stitches b in the drape A to complete the hem a, with the cord C lying loosely within the hem pocket, adjacent the marginal edge of the drape.
The hemmed drape fabric A, during the formatic-n of the row of stitches b, is fed rearwardly over the work table l, by the ordinary feeding mechanism (not shown) of the conventional sewing machine B and is thereafter pulled along the work table I by pulling means D, hereinafter described in detail, at the same rate of speed as the fabric is delivered from the sewing machine B Between the pulling mechanism D and the sewing machine 18 the fabric A is engaged by a tensioning mechanism E, hereinafter described in detail, to hold the fabric A in a taut condition, to pass through a conventional stitch-forming mechanism of a second conventional sewing-machine B having a vertically-reciprocating needle bar with a needle 24 and other stitch-formin means forming no part of the present invention.
Preferably, the ordinary feeding means of the conventional sewing machine B is rendered inoperative or removed, in View of the fabric being advanced past the needle bar 25, etc., by the pulling mechanism D under tension provided by the tensioning means E.
Immediately after leaving the tensioning means E, the portion of the hem a of the fabric A i lying adjacent the outer edge of the article is engaged by cord-positioning mechanism F, which, as shown in Figs. 3, 5 and 9, includes an anvil or positioning block secured to the work table I, as by screws 3|, 3|. The positioning block 30 is provided with a vertical wall 32, for engagement with the extreme outer edge of the hem a.
The hem-engaging surface 32 of the cord-positioning anvil 30, as shown in Fig. 3, is offset laterally with respect to the hem-folder 2, on the work table I, to place the fabric of the hem a under a lateral tension, in addition to the longitudinal tension effected by the pulling mechanism D.
Cooperating with the work-engaging block 30 is a shoe 33, which, as shown in Figs. 5 and 10, is provided with a flat under surface 34 adapted to Press the hem fabric downwardly against the work table 1, and to slide or sled over the hem fabric as the hem fabric is pulled under the shoe 33. The forward end 35 of the flat sledding surface 34 is curved upwardly to act as a fiat iron, to smoothen the fabric as it advances under the sledding or ironing surface 34.
Along the edge of the shoe 33 which normally lies adjacent the vertical wall 32 of the workengaging block 393, the shoe is rabbetted, as shown at 36, Figs. 5 and i to provide a right angle recess, including a flat horizontal under surface 3'! parallel to t e under surface 3 and a vertical surface 33 parallel to the vertical wall 32 of the anvil Toward the forward end 35 of the surface 36, the vertical urface 33 of the shoe 33 curves outwardly, as shown at 39, Fig. 3, and lies in divergent relation to the Wall 32 of the anvil 30.
Upon referring to Fig. 9, it will be apparent that, as the fabric A advances in the direction of the arrow y, the shoe 33 presses the primary fold a down firmly against the underlying portion of the fabric A; and that the convergency oi the curved surface (it) of the shoe with respect to the vertical surface 32 of the anvil 3i] forces the cord C laterally within the hem a, into the extreme outer edge of the hem pocket, as shown in Fig. 5. Due to the longitudinal and transverse tensioning of the fabric in, as afforded by the pulling means D, the fabric of the hem a is pulled tightly around the cord 0, to produce the corded edge of the article, in te form of a cordonclosing pocket a The edge pocket a is then completed and made permanent by a row of stitches Z2 which pass through the primary fold a and the underlying fabric A immediately adjacent the inner side of the cord C, said row of stitches being produced by the needle 2%, etc. of the sawing machine B The cord-positioning shoe is carried by one end of a lever 40 which is pivoted, intermediate its ends, at M, to a bracket 42 secured to the work table i. flat spring 43, operating beneath the opposite end of the lever is, tends at all times to rock the lever about its pivot and thereby press the shoe 33 downwardly against the fabric forming the hem An. adjustable stop M, which is carried by the bracket 42, prevents the shoe from being forced so strongly against the hem fabric as to interfere with the movement of the fabric along the work table l. A release cam 55, pivoted at 46 to the bracket 32, is provided to raise the shoe 33 to an inoperative position while threading a strip of fabric A through the apparatus originally.
he cord C is dr' wn from any remotely situated and suitable cone, spool. or other supply, irough a plurality of guide eyes 4'1 and 5B which apply tension to the cord as it enters the hem a. and as the hem is being folded in the folder 2. The eyes 48, in the present instance, are formed. in a bracket 4%, which is secured tn the o t r (3011.. volution of the spirally-bent plate which constitute the folder 2. The eye 38 is formed in an extension 50 of the partition M, which produces the guide channel 5 for the cord in the one end of the inner fabric channel i3 of the folder 2.
The pulling mechanism D comprises a pair of rolls 5! and 52 which are carried by shafts 53 and 55, respectively. The shafts 53 and 5 are rotatably mounted, adjacent the opposite ends of said rolls, in brackets 5 5, which are rigidly secured to the work table i, only one of said brackets being shown in the present instance.
The rolls 5! and are slightly reduced in diameter adjacent the bracket 55. as shown at 53 and 5?, respectively, the reduction in the diameter of the rolls being provided to compensate for the difference in the thickness between the multi-ply hem a and the single-ply of the fabric A so that rotation of the rolls SI and 52 normally would feed the fabric A uniformly from side to side thereof.
In order to pull the fabric, a nip roll 69 is adapted to cooperate with the reduced portions 55 and of the rolls 5| and 52 to pinch the fabric therebetween. In order to compensate for the difference in thickness between the hem a and the edge pocket (2 in which the cord C i confined, the roll 68 is provided with a portion 6| of one diameter, to pinch the hem a between said portion and the reduced portion 57 of the roll 52, and a portion 62 of smaller diameter than the portion 5i, which is adapted to pinch the cordcontaining pocket a between its periphery and the periphery of the portion 56 of the roll 5|.
The pinch roll 98 is secured to a shaft 68,
which is rotatably mounted in bearings 84, 6 carried by a swing frame 55. The swing frame if is provided with bearings 68, which are pivotally mounted on a shaft er. The shaft 81 is provided with an eccentric portion 68 which is mounted in a bearing 59 forming part of the bracket 55, and is clamped in a predetermined position by a nut 18 threaded onto the. outer end 7! of the eccentric shaft section 58, to clamp the shaft 5'! in any given position. Upon loosening the clamp 58, and rotating the shaft portion 53 in the bearing 59, the eccentric portion 6'! of the shaft may be moved laterally, carrying with it the swing frame 85 and the pinch roll 69, whereby the roll may be adjusted to cause the portions Bi and 62 thereof to bear with equal force against the hem a and the cord pocket a and pinch the same with equal force against the portions 59 and 5'! of the rolls 5! and 52, respectively, whereby uniform tension will be placed upon the hem a and the cord pocket a In the present instance, the tensioning means comprises a triangular block 15, anda pair of fingers 5, it, extending parallel to and adjacent the lower sharp corners ll of the triangular block l5, with slots '58 formed between said edges of the block and the fingers H5. The block. '15, etc., is mounted on the work table 9 transversely to the travel of the fabric A from the sewing machine B to the sewing machine B The fabric A is threaded under one finger 16, through the slot '58 adjacent thereto, up one side of the block '55, over the relatively sharp top edge 19 of the triangular block 75, then downwardly over the second side of said block, through the second slot l8, and under the second finger I6. This arrangement provides a snubbing action on the hem a between the two sewing machines B and B it being remembered that, as previously noted, the fabric is fed away from the sewing machine 35 by the conventional feeding mechanism thereof, is normally in a relatively loose state as it leaves the first said sewing machine B In order to position the cord C in the extreme edge of the hem a by the shoe 83, and in order to titch through the hem a immediately adjacent the cord pocket (1 it is necessary to maintain the hem a under tension prior to its passage to the cord-positioning means F and the needle bar 25 of the second sewing machine B Pivoted at Hi to the side of the snubbing block 15 nearest the second sewing machine B is a spring metal finger 88 having a foot portion 82 which bears on the upper side of the hem a at and adjacent the inner extreme edge thereof, to prevent puckering of the fabric as the hem (1 comes under the influence of the cord-positioning shoe 33. The spring finger 80 is provided to the apparatus through a pulley 83 secured to secured to the work table I.
the main drive shaft 81 of the first sewing machine B The main shaft 81 of the sewing machine B is provided with an extension 88 which is rotatably mounted in bearings 89, 89 A yoke frame 98 is provided with axially-aligned bearings 9I, 9I, through which the shaft 88 passes, and a right angle bearing 92 for one end of a power take-off shaft 93. The opposite end of the shaft 93 is rotatably mounted in a bearing 94 carried by a second yoke frame 95, which is also provided with axially-aligned bearings 96, 96 through which an extension 91 of the main shaft 98, of the second sewing machine B passes. Bearings 99, 99, se-
35 cured to the work table I, support the shaft exyoke frame 96.
tension 91 for rotation. The shaft 93 is driven through a pair of mitre gears I80, one of which is splined to the shaft 88, while the second is secured to one end of the shaft 93, within the A second pair of mitre gears IGI, having one gear secured to the second end of the shaft 93 and the other splined to the shaft 91, provide the power for the second sewing machine B As shown in Fig. 2, the main power shaft 88 is provided with a pinion I02 which meshes with a gear I83. Fast to the gear I83 is a pinion I84, which meshes with a gear I85 (see Fig. 1). Fast to the gear I85 is a sprocket wheel lift, in the present instance, about which passes a sprocket chain I81. The sprocket chain I97 also passes around a sprocket wheel I88, which is secured to the shaft 53 of the pulling roll 5I. As shown in Fig. 7, the shaft 53 is also provided with a gear I 99 which meshes loosely with a gear secured to the shaft 63 of the pinch roll 68.
Either one or both of the sewing machines B and B may be mounted on the table i in such a manner as to be shifted axially of their main shafts 88 and 91, respectively, for changing the lateral relationship between the needle bars 26 and 25, respectively, of said machines for operating on curtains, etc., having hems a of different widths, for properly positioning the row of stitches b adjacent the inner edge of the hem a,
and the row of stitches b adjacent the outer edge of the hem. For this purpose, the mitre gears on said main shafts 88 and 9?, as noted above, are splined to their respective shafts and the shafts themselves are capable of being shifted axially within said mitre gears and the supporting bearings 89, 89 and 99, 99, respectively. The pinion I82, under such circumstances, would also be splined to the shaft 88.
In order to adjust the folder 2 on the table 1, to effect formation of hems of different widths, the folders of different sizes, respectively, are each provided with a tongue III, slotted at H2 for the passage of a clamping bolt M8, by which the folder 2 may be secured in the position to which it is adjusted.
In the tensioning apparatus E, the snubbing block '55 and the fingers I5, 76 are secured to a plate portion H4, having elongated slots H5 for the reception of securing screws H6, by which said tensioning mechanism may be adjusted and secured in position on the work table.
Through the driving mechanism previously described, the sewing machines B and B and the pulling mechanism D are operated continuously in synchronized relation to each other. However, if desired, the rolls of the pulling mechanism may be intermittently operated in synchronization with the stitch-forming and fabric-feeding mechanisms of the sewing machines, by the mechanism shown in Fig. 12. The main shaft I II of a sewing machine B for example, is provided with an eccentric H8, which is surrounded by a strap I I9 having a reach rod IEii connected at I'2I to a lever I22. The lever I22 is rotatably mounted on a shaft I23 which would be adapted to support and drive an upper pulling roll i2 1 through an intermittent clutching arrangement. The clutch mechanism comprises a disc I25 secured to the shaft I23 and having recesses I25 in which clutch rolls or balls I21 are freely mounted with springs I28 arranged to force said balls into one end of each recess, between the converging base surface I29 of the recess and the inner peripheral surface I30 of a hollow hub Iiil, attached to and from which the lever I22 extends.
As the lever i222 is rocked in one direction, the clutch elements I27 take hold and lock the disc I25 to the hub I3I, causing a rotation of the roll iz i. As the lever E22 rocks in the opposite direction, the balls or rolls I21 are released and disconnect the roll I24 from the hub I3I, thus leaving the roll its standing idle.
The fabric is gripped between the periphery of the roll I24 and a second pinch roll I32 having a shaft I33 on which is secured a gear I34. The gear Iii meshes with a similar gear I35 secured to the shaft I23 to which is also secured the roll I24.
In this instance, the sewing machine 13 would be provided with the conventional feeding mechanism, timed with the stitch-forming mechanism to advance the fabric intermittently under the needle and the pulling rolls I24 and I32 would be correspondingly operated intermittently.
The above noted mechanism has particular value in cases where one may choose to form the hem a, with the cord C loose therein, on one machine and to force the cord into the edge of the hem and titch the same in place on another machine, remote to the hem-forming machine. While such arrangement is possible, it is not preferable, for obvious reasons, and is only mentioned herein as a possible alternative for the preferred form of apparatus previously described, wherethe hem and the cord pocket are formed from beginning to end in one and the same apparatus, which obviates extra handling, etc., and assures the cord being properly positioned within the hem to immediately following the formation of such hem.
I claim:
1. Apparatus for making corded-edged textiles, comprising means for folding a fabric laterally upon itself adjacent one of its edges, means for inserting a cord in the lateral. fold, means for stitching the inner edge of the lateral fold to the underlying fabric to enclose the cord, means for forcing the cord laterally into the outer edge of the lateral fold, means for stitching the lateral fold to the underlying fabric adjacent the inner side of the cord, means following said second stitching means for pulling the fabric through second stitching means, and means intermeassaire diate said first and second stitching means for applying tensioning resistance to the movement of the fabric by said pulling means.
2. Apparatus for making corded-edged textiles, comprising means for folding a fabric laterally upon itself adjacent one of its edges, means for laying a cord in the fold, means for stitching the free edge of the fold to the underlying fabric, means for pulling the fabric longitudinally, intermediate said stitching means and said pulling means for applying tensioning resistance to the pull of the fabric by said pulling means, means intermediate said tensioning means said pulling means for forcing the cord into the outer edge of the stitched fold, and
means intermediate said cord-forcing means and said pulling means for stitching the fabric through said fold adjacent the inner side of said cord.
3. Apparatus for making corded-edged textiles, comp-rising means for folding a fabric laterally upon itself adjacent one of its edges, means for laying a cord in the fold, means for stitching the free edge of the fold to the underlying fabric, means for pulling the fabric longitudinally, means intermediate said stitching means and s d pulling means for applying tensioning resistance to the pull of the fabric by said pulling means, means intermediate said tensioning means and said pulling means for forcing the.
cord into the outer edge of the stitched fold, and means intermediate said cord-forcing means and said pulling means for stitching the fabric through said fold adjacent the inner side of said cord, said cord-forcing means and said second stitching means being arranged in laterally-offset relationship to said folding and first stitching means.
4. In an apparatus for making corded-edged textiles, means for folding afabric laterally around a cord, means for tensioning the fabric and the cord including means for pulling the fabric and cord longitudinally of the latter, a shoe for engaging and tightening the fabric around the cord, a fixed anvil having a surface for engaging the folded edge of the fabric at one side of the cord, a surface on the shoe parallel to said anvil surface for engaging the fabric at the opposite side of the cord for holding the folded fabric and the cord in tightened relation, and means for stitching the tightened fabric adjacent the cord.
5. In an apparatus for making corded-edged textiles, means for folding a fabric laterally around a cord, means for tensioning the fabric and the cord including means for pulling the fabric and cord longitudinally of the latter, a shoe for engaging and tightening the fabric around the cord, a fixed anvil having a surface for engaging the folded edge of the fabric at one side of the cord, a surface on the shoe parallel to said anvil surface for engaging the fabric at the opposite side of the cord, and a third surface between and at right angles to said parallel surfaces for holding the folded fabric and the cord in tightened relation, and means for stitching the tightened fabric adjacent the cord.
6. In an apparatus for making corded-edged textiles, means for folding a fabric laterally around a cord, means for tensioning the fabric and the cord including means for pulling the fabric and cord longitudinally of the latter, a shoe for engaging and tightening the fabric around the cord, a fixed anvil having a surface for engaging the folded edge of the fabric at one side of the cord, a surface on the shoe parallel to said anvil surface for engaging the fabric at the opposite side of the cord, and a third surface between and at right angles to said parallel surfaces for holding the folded fabric and the cord in tightened relation, said parallel surfaces being in convergent relationship to each other at one end of the shoe to guide the fabric and cord into said tightening relationship, and means for stitching the tightened fabric adjacent; the cord.
'7. In an apparatus for making corded-edged textiles, means for folding a fabric laterally around a cord, mean for stitching the folded fabric adjacent the cord, and means for pulling the folded fabric and the cord uniformly comprising a pair of parallel laterally-spaced rolls, a pinch roll intermediate and adapted to cooperate with said parallel rolls, said pinch roll having a portion of one diameter adapted to pinch the folded fabric adjacent the enclosed cord against one of said pair of rolls, and a portion of lesser diameter adapted to pinch the fabric enclosing the cord against the other of said pair of rolls.
8. In an apparatus for making corded-edged textiles, means for folding a fabric laterally around a cord, means for stitching the folded fabric adjacent the cord, and means for pulling the folded fabric and the cord uniformly comprising a pair of parallel laterally-spaced rolls, a pinch roll intermediate and adapted to cooperate with said parallel rolls, said pinch roll having a portion of one diameter adapted to pinch the folded fabric adjacent the enclosed cord against one of said pair of rolls, a portion of lesser diameter adapted to pinch the fabric enclosing the cord against the other of said pair of rolls, and means for varying the relationship of the axis of said pinch roll relative to the axes of said pair of rolls to effect uniform pinching of the fabric at said pair of rolls respectively.
9. In an apparatus for making corded-edged textiles, means for folding a fabric laterally around a cord, means for stitching the folded fabric adjacent the cord, and means for pulling the folded fabric and the cord uniformly comprising a pair of parallel laterally-spaced rolls, a pinch roll intermediate and adapted to cooperate with said parallel rolls, said pinch roll having a portion of one diameter adapted to pinch the folded fabric adjacent the enclosed cord against one of said pair of rolls, a portion of lesser diameter adapted to pinch the fabric enclosing the cord against the other of said pair of rolls, a frame supporting the pinch roll for free movement perpendicular to a plane common to the axes of said pair of rolls, and means for varying the position of the axis of said pinch roll laterally in a plane substantially parallel to said common plane to regulate the pinch of said pinch roll on the fabric with respect to said pair of rolls, respectively.
10. In an apparatus for making corded-edged textiles, means for folding a fabric laterally around a cord, means for stitching the folded fabric adjacent the cord, and means for pulling the folded fabric and the cord uniformly comprising a pair of parallel laterally-spaced rolls, a pinch roll intermediate and adapted to cooperate with said parallel rolls, said pinch r011 having a portion of one diameter adapted to pinch the folded fabric adjacent the enclosed cord against one of said pair of rolls, a portion of lesser diameter adapted to pinch the fabric enclosing the cord against the other of said pair of rolls, a frame supporting the pinch roll for free movement perpendicular to a plane common to the axes of said pair of rolls, and an eccentric pivotal mounting for said frame to vary the position of the pinch roll parallel to said common plane in directions laterally with respect to the axes of said pair of rolls.
11. Apparatus for making corded-edged textile articles, comprising means for folding a marginal portion of a fabric laterally upon the body portion thereof along one edge of the fabric, means for inserting a cord in the fold during said folding, hemming means including coordinated stitching and feeding mechanisms for initially stitching the free edge of said marginal portion to the underlying body portion in laterally spaced relation to the line of said fold to form a hem loosely enclosing the cord, means remote to said hemming means in a direction longitudinally of said hem for tightening the fabric around the cord, coordinated stitching and feeding means adjacent said tightening means for stitching the fold to the underlying body of the fabric adjacent the cord and for advancing the fabric to effect anchoring of the cord in the hem, and means intermediate said hemming means and said tightening means for tensioning the fabric and cord for entry to said tightening means.
12. Apparatus for making corded-edged textile articles, comprising means for folding a marginal portion of a fabric laterally upon the body portion thereof along one edge of the fabric, means for inserting a cord in the fold during said folding, hemming means including coordinated stitching and feeding mechanisms for initially stitching the free edge of said marginal portion to the underlying body portion in laterally spaced relation to the line of said fold to form a hem loosely enclosing the cord, means remote to said hemming means in a direction longitudinally of said hem for tightening the fabric around the cord, coordinated stitching and feeding means adjacent said tightening means for stitching the fold to the underlying body of the fabric adjacent the cord and for advancing the fabric to effect anchoring of the cord in the hem, means intermediate said hemming means and said tightening means for tensioning the fabric and cord for entry to said tightening means, and means synchronized with and supplementing the last said feeding and stitching means for drawing the fabric through said tightening and tensioning means.
RUDOLF LOEB.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495187A (en) * 1947-03-04 1950-01-17 Shames Irving Reinforced fabric strap
US3140680A (en) * 1964-01-17 1964-07-14 Brenner Abe Zipper foot device
US9421744B2 (en) 2012-08-31 2016-08-23 General Electric Company Methods and systems for automated ply layup for composites

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495187A (en) * 1947-03-04 1950-01-17 Shames Irving Reinforced fabric strap
US3140680A (en) * 1964-01-17 1964-07-14 Brenner Abe Zipper foot device
US9421744B2 (en) 2012-08-31 2016-08-23 General Electric Company Methods and systems for automated ply layup for composites

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