US1197714A

US1197714A - Folding device for sewing-machines.

Info

Publication number: US1197714A
Application number: US71880612A
Authority: US
Inventors: Albert H De Voe
Original assignee: Singer Co
Current assignee: Singer Co
Priority date: 1912-09-06
Filing date: 1912-09-06
Publication date: 1916-09-12
Anticipated expiration: 1933-09-12

Description

A. H. DE VOE. FOLDING DEVICE FOR SEWING MCHINES. APPLICATION Flu-:D SEPT. 6. 1912.

1 ,1 97,7 14. Patented Sept. 12', 1916.

3 SHEETS-SHEET l.

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A. H.`DE VOE.

FOLDING DEVICE FOR SEWING MACHINES.

APPLICATION FILED SEPT. 6,1912.

3 SHEETS-SHEET 2.

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FOLDING DEVICE FOR SEWING MACHINES.

APPLICATION FILED SEPT. s, I9I2.

1,197,714. Pandsept. 12,1916.

3 SHEETS-SHEET 3.

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tate the folding of the UNITED STATES APATEN T OFFICE..

ALBERT I-I. DE VOE, OF WESTFIELI), NEW JERSEY, ASSIGNOR TO TIr-IE SINGER MANU- FACTURING COMPANY, A CORPORATIONYOF NEW JERSEY.

l FOLDING DEVICE FOR SEWING-MACHINES.

Application filed September 6, 1912. Serial No. 718,806.

To all whom 'it may concern:

Be it known that I, ALBERT H. DE Von, a citizen of the United States, residing at lVestfleld, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Folding Devices for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention is designed more particularly for embodiment in that class of sewing machines which are employed for producing tucks in circular garments such as skirts, and in stitching therein ruffled strips of fabric; and it relates especially to the means for producing the tucks, whether formed in the body of the garment or at an extremity thereof requiring the hemming of the marginal portion.

The invention has for its objects to facilitucks and handling of the work, to insure precision in the presentation of the tuck to the stitch-forming mechanism, and to permit the easy retraction of certain of the work-engaging parts near the completion of a seam to enable the latter to be finished at the starting point.

In its preferred form the invention vis applied to a sewing machine containing stitch-forming mechanism employing spaced reciprocating needles arranged diagonally relative tothe direction of feed and a throatplate formed with -raised work-sustaining portions containing the usual needle apertures and having edges arranged in different lines crosswise of the feed and at substantially the same distances in front of the respective needles.

The tuck-folder is preferably vconstructed with a standing guide having a flat operative face and arranged parallel with the direc tion of feed and at one such guide being formed at its advance or delivery end with a lateral tuck-forming blade extending in fro-nt of the needles and havingan inclined forward edge merging into the upper edge of said guide. The guide is preferably formed of a sheet metal plate and is sustained upon a fulcrum-pin journaled in a laterally movable carrier and having applied thereto a spring-pressed lifting lever whereby the forming blade may be raised in manipulating the work. A second forming blade, also pivotally mounted Specification of Letters Patent.

`upper and lower forming of which affords a separator-plate to permit strip may be accurately side of the needles,

Patented Sept. 12, 191.6.

upon a laterally movable carrier, normally extends beneath the first-named forming blade with its adjacent'edge close to the standing guide. Sustained upon a vertically movable carrier 'is a smoothing member having portions or wings normally disposed in overlapping relation with the operative Iface of said guidel and the upper forming blade, respectively, whereby the .smoother is adapted to be lowered upon the fabric overlying the upper forming blade to shape it closely in conformity with the operative face of the standing guide and the upper forming blade. The lower forming blade is preferably provided at the edge nearest the standing guide with a guide-loop through which a ruffled strip is led for engagement by a retractable ruilling blade adapted to engage the lsame intermediate the blades, the lower the action of the rufllin'g blade.

To the sewing' machine work-plate may bel applied a detachable edge-folder disposed adjacent the standing guide and beneath the lower forming blade, such folder being provided at the opposite edges with forwardly projecting tongues extending laterally each beyond alinement with its respective needle relatively to the direction of feed, and one of said tongues extending in the direction of feed in advance of the foremost needle or that nearest the front of the machine. By this means, the oppositeedges of the tuck `without the interposed ruflled presented to the stitch-forming mechanism with the lower forming or separator-blade and the ruflling blade retracted from .operative position. which is desirable for certain classes of work.

The carrier for the standing guide and upper-'forming blade preferably sustains a plate extending forwardly of the guide and having angularly disposed faces affording a fabric-bending ridge in substantial alinement with said: guide, so as to break the surface of the fabric in its ad- Vance to the guide and beneath the smoother,

fabric-supporting thus making the attachment effective in its normal operation with the least possible attention of the attendant in directing the work.

In the drawings, Figure 1 is a front side elevation and Fig. 2 a front end elevation of a sewing machine embodying the present improvement-s, and Fig. 3 a plan of the same with the greater portion of the bracket-arm removed to expose the parts beneath. In these figures the several parts of t-he attachment are represented in retracted position. Fig. 4 is a perspective view of the attachment with its component parts in operative position. Fig. 5 is a plan of the throatplate, the edge-folder, and the standing guide with the upper forming blade represented partly in dotted lines. Fig. 6 is an elevation of the fabric-folding and ruiiiing parts viewed from the delivery end of the attachment. Fig. 7 is a perspective view of the standing guide and upper forming blade and showing the superposed smoother in dotted lines. Fig. S is a perspective view, and Fig. 9 an elevation partly in section, representing certain parts of the ruming device. Fig. 1() is a perspective view of the lower forming-blade carrying block. Fig. 11 is perspective view of a section of fabric representing the different kinds of fold with interposed ruiiied strip produced by the present improvement. Figs. 12 and 13 are perspective views, take-n from different positions, representing an alternative means for sustaining the lower forming blade, and Fig. 14 is a perspective view of a part of such alternative construction. Fig. 15 is a detailed perspective view of the carrier slideblock for the fabric supporting plate.

In general constructive features, the machine and the ruiiiing mechanism of the present improvement are similar to those of my Patent- No. 1,094,707, issued April 28, 1914. The frame comprises the base 1 and bracket-arm formed with the hollow standard 2 and overhanging tubular portion 3 in the head 4 of which is journaled the vertically reciprocating needle-bar 5 carrying the needles 6 arranged diagonally or in a plane at an acute angle with the direction of feed and coperating with thread-carrying loopers 7 in the p-roduction of parallel doublechain-stitch seams, the under ply of the work being 'engaged by the feed-dog 8 carried by the feed-bar 9 for advancing the work to space the stitches.

The pressure member 10 ofthe presserfoot, which is opposed to the feed-dog S, is pivotally attached by means of the pin 11 to the shank 12 which is secured by means of the fastening screw 13 to the reduced lower end of the presser-bar 14 mounted in the head 4 of the bracket-arm and having its upper end engaged by the free end of the pressure spring 15 whose opposite end rests upon the top of the bracket-arm member 3 and is held in position by the steady pin 16 thereon and pressed downwardly intermediate its ends by means of the thrust-screw 17 tapped into the lug 18. The presser-foot has the usual elongated needle-apertures 19 and its upturned forward portion 20 is formed at opposite sides of the center in longitudinally offset transverse lines substantially equidistant from the respective neeelle-apertures, of the needles passing through them.

Secured upon the sewing machine workplate 21 by the usual means is the throatplate 22 formed with the raised work-sustaining portion 23 in which are formed the two elongated needle-apertures 24 and the feed-dog apertures 25, one of said needle apertures being disposed forwardly of the second needle aperture. The forward eX- treinity of the raised portion 23 terminates at opposite sides o-f the center substantially equal distances in front of the forward ends of the needle-apertures or the paths of reciprocation of the needles entering the same, as clearly represented in Fig. 5.

Secured'by means of fastening screws 26 upon a carrier slide-block 27 fitted within a guideway 28 arranged transversely to the direction of feed in the work-plate is the fabric-supporting plate 29 which is fo-rmed in its forward portion with stepped upper faces 30 and 31 forming between them a fabric bending ridge 32.

The plate 29 has extending rearwardly from and in substantial alinement with the ridge 32 the laterally rounded tongue 33 against the opposite fiat side face of which adjacent the stitch-forming and feeding devices i'ests the standing guide-plate 34 having the advance end portion turned over at the upper edge to aord a lateral tuck-forining blade 35 with an operative edge 35 inclined backwardly and outwardly from and merging into the upper edge of the guidepiate ai.

The member 34, whose side face presents a standing guide for the fabric, is preferably formed of sheet metal with the forming blade 35 integral therewith, and is attached at its forward end to the transverse fulerum-pin 36 which is `iournaled within the plate 29 and has secured to its under side the offset portion 37 of the lever-plate housed within a recess in the under side of the plate 29 and normally pressedupw'ard to maintain the guide-member 34 in its lower position by means of the flat spring 39 secured in position by the fastening screw 40. The lever-plate 38 has upon the upper side of its outer extremity the projects through an aperture 29 of the plate 29 to receive the pressure of the operators linger in lifting the members 34 and 35.

The shank 27 of the carrier-block 27 is secured by screws 42 upon thevcollar 43 fixed upon the slide-rod 44 which is Journaled near one end in the frame member 1 and near the opposite end in the standard 45 knob 41 which or the paths of reciprocation secured by screws 46 to the front side of the base 1. The rod 44 has secured thereon by means of screws 47 between the collar 43 and the standard 45 the block 48- interposed between which and the standard 45 is the spring 49 normally pressing the rod to the left as viewed in Figs. 1 and 4, to shift and maintain the plate 29 and parts carried thereby in the retracted position represented in Figs. 1 and 3.

`To the block 48 is secured by means of screws 50 one end of the spring latch-barY 51 whose opposite end portion rests upon the shoulder 45 of the standard to which it is confined by theroverhanging stud 52. The bar 51 has formed upon its lower edge the stop-lug 53 adapted for engagement with the standard in the position of the rod 44 corresponding with the operative relation of the members 34 and 35 with the stitch-form- -ing mechanism, in which position it is held by means of the engagement of the block 54 upon its rearward face with the adjacent edge of the standard 45, a forwardly offset finger-piece 55 being formed at the eXtremity of the bar 51 for manipulating the same, and the stud 52 being spaced far enough in front of the standard to permit the bending of the bar 51 forward to disengage the block 54 from the standard when the connected parts are to be retracted from operative position.

Journaled in theV bearing lugs 56 of the face-plate 4 is the vertically movable sliderod 57 to which is Xed by means of the setscrew 58 the collar 59 carrying the laterally extending finger-piece 60 and the depending guide-pin 61 adapted to rest upon the top of the lower bearing lug 56 when the rod 57 is in its upper position and to enter the lateral guide-notch 62 formed in such lug to lock the rod against turning when the latter is in lo-wer or operative position. The rod 57 is surrounded by the pressure-spring 63 interposed between the upper bearing lug 56 and the collar 59 by means of which it is pressed downwardly into operative position. Secured upon the lower end of the rod 57 by means of clamp-screws 64 is the split collar 65 in which is secured the laterally bent Carrier-arm 66 having attached to its lower face by screws 67 the smoother comprising the angular `shaped saddle-piece 68 having near its forward end the depending wing 69 overlapping and slightly spaced from the outer or operative face of the guide-plate 34 and having in its rearward portion the lateral wing 70 substantially parallel with and normally overlying the primary or upper forming blade 35.

Sustained at the opposite side from the feed line from the primary forming blade is the secondary forming blade 71 normally disposed beneath the forming blade 35 and smoother wing 70 and having its adjacent edge spaced slightly from the flat operative face of the guide-plate 34. Overlying the blade 71 is the rutile-strip guide-loop 72 whose' shank 73, with the shank 74 of the blade 71, are secured by means of fastening screws 75 upon the outer end of the lever-plate 76 attached by screws 77 to a hinge-plate 78 which is pivotally mounted by means of the screw-pin 79 within a Vchannel 80 in the top of the yslideblocl 81.

The block 81 is formed with the longitudinally extending aperture 82 and lateral recess 83 respectively fitted to the guide-bar 84 and guide-rod 85 secured within and extending laterally from the head of the standard 45. Pivotally mounted upon the leverplate 76 by means of the stud-screw 86 is the latch-lever 87 normally pressed outwardly to maintainY the backwardly extending lug 88 seated against the end of the hinge-plate 78 by means of the spring 89 interposed be tween said lever and the inner'rend of a socket formed therefor in the hinge-plate. The latch-lever 87 is formed with a notch 90 for engagement with a lug 91 of the plate 92 adjustably secured by means of screws 93 upon tl'ie head of the standard 45 for locling the lower forming blade 71 in operative position in advance of the needles.

The block 81 carries a screw 94 whose point affords an adjustable stop for engagement with the adjacent end of the standard 45 to determine the operative position of the forming blade 71. In order to retract the forming blade 71 it is merely necessary for the operator to press thethumb-piece 87 of the latch-lever 87 to disengage the notch 90 from the lug 91,7Ywhen the block 81 is freev to be drawn backwardly upon the supporting

rods

84 and 85, the lever-plate 76 being lifted, as represented in dotted lines in Fig. 1, upon its hinge-pin 79 when required. The block 81 may obviously be entirely detached from the supporting rods for removal of the under forming blade from the machine when required.

As represented in the drawings, the blade 71 is formed with grooved upper face 7l and notched forward edge to serve as a separator-plate in combination with the reciprocating ruiling blade 95 which is formed with theusual fastening screw aperture 96, as represented in Fig. 6.

The work-plate 21 has formed in its upper face parallel with the direction of feed an undercut channel 97 in which is fitted the removable slide-plate 98 having secured thereto by means of screws 99 the shank 100 of the edge-turning scroll 101 arranged in advance of and directed toward the needles and provided within the scroll with the arbor 102. The scroll 101 is disposed beneath the operative positions of the forming blades, and the arbor 102 has at the delivery end the lateral tongue 103 extending close to the adjacent extremity of the raised portion 23 of the throat-plate and across the line of seam of the adjacent needle; while the opposite edge of the scroll has a tongue 104 extending in advance of the tongue 103 and beyond the said needle relatively to the direction of feed. rlhis tongue also extends across the line of seam of the other needle and close to the adjacent edge of the throat-plate projection 23. By the means described, when the lower forming blade 71 is in either operative or retracted position the edges of the folds presented to the stitch-forming mechanism by the members 34, 35 and 101 are directed with the utmost precision in such manner that the parallel seams will be applied just within such edges. By extending the tongue 104 in advance of the foremost needle, the hem fold secured at one edge by such needle is maintained properly positioned for the action of the rearward needle.

As more fully described in my pending application, Serial No. 552,948, the mainshaft 105 journaled in the bed 1 carries the actuating eccentric 106 embraced by the strap 107 of the eccentric-rod 108 whose apertured upper end embraces the stud 109 of the crank-arm 110 upon the rearward end of the ruffler rock-shaft 111 suitably mounted at the rear of the bracket-arm member 3.

The rock-shaft 111 carries near its forward end the crank-arm 112 connected by the link 113 with a crank-arm 114 upon the rockshaft 115 journaled in the bracket-arm head. The rock-shaft 115 has fixed upon its forward end a depending arm 116 having an undercut groove or channel to receive the head 117 of the coupling pin 118 having loosely journaled thereon the slide-block 119 fitted within the slideway 120 in the extension 121 of the ruliiing lever 122. The ruffling lever is sustained upon the stud screw 123 carried by the arm 124 fixed at one end upon the fulcrum-pin 125 and connected at the opposite end by means of the stud-screw 126 with the collar 127 fixed upon the presser-bar 14.

The vibrating ruifling lever 122 is formed with spaced and apertured bearing lugs 128 and 129 in which is journaled the rocking pin 130 having fixed upon its lower end the rigid arm 131 formed in its lower side with an endwise extending slot or channel 131 in which is mounted by means of the fulcrum-screw 132 the rearward end of the ruffler-blade carrying an arm 133 provided at its opposite end with the lateral extension 134 having in its upper face a seat to which is secured by means of the screw 135 the shank of the ruffling blade 95. The arm 133 has at its rearward end the upwardly projecting member 136 with apertured lateral lug 137 through which passes the radial screw-pin 138 cam-lug 144 with inclined lower operative face. The arm 131 has at one side of its slot 131 a socket 145 in which is journaled the upwardly extending locking pin 146 having in its outer portion the annular slot or neck 147 and in its inner portion a recess between the extremity of which and the bottom of .the socket 145 is interposed the spring 148. (Fig. 9). Pivotally mounted by means of the screw-pin 149 passing through a depending ear thereof housed within the slot 150 of the arm 131 is the latchnplate 151 formed in one edge with the notch 152 embracing the neck 147 of the locking pin 146.

The pin 146 is maintained by the spring 148 normally in its upper position in which it is adapted to enter the aperture 143 of the lug 142 to lock the ruffling blade carrying arm 133 in operative relation with the stitchforming and folding devices. By depressing the latch-plate 151 by pressure upon the lateral finger-piece 153, the upper end of the pin 146 is retracted to enable the arm 133 to be swung laterally and backwardly into retracted position, as represented in Figs. 1, 2 and 3. As the arm is shifted again into operative position, the round upper end of the locking pin 146 encounters the inclined lower face of the cam-lug 144 by which it is depressed in opposition to its spring 148 until it comes into register with the aperture 143 which it enters under the action of such spring to lock the ruffling blade in operative position.

In the operation of the machine as thus described, -the slideplate 98 is preferably removed for applying a rufiie strip 11 within a tuck-fold t in the body of the garment m, which is first introduced between the throatplate and the presserefoot while all the parts of the ruffling and fo'lding devices are retracted. The lower or secondary forming blade is first shifted into position above the body fabric, and the upper or primary forming blade with its attached standing guide then moved into operative position to bend the fabric into an initial fold t. The fold is then lightly pressed into conformity with the upper forming blade and the standing guide by lowering the smoother after which, the parts 35 and 70 having been slightly raised by depression of the finger-lever 38 to open out the fold t, the ruffle strip ris introduced over the blade 71 and the ruiiiing blade shifted into position above the same and beneath the fold. The presser-foot having been finally lowered, the fabric is advanced to the stitch-forming mechanism with the opposite edges of the tuckI accurately directed to the needles by the outer or free edges of the forming blades with the margin of the ruffle strip secured beneath the Vfold by the seam s laid by the foremost needle or that nearest the rufller-arm 133. As the folding, rufiiing and stitching nears the starting point of the circular garment, such as a skirt, the folding and ruifling members may be retracted out of operative position and the seam completed by hand manipulation of the work.

In the use of the edge-folder, the margin of the garment is first introduced therein to form the hem 7L, and the other parts shifted into operative position as before, and in the same order, the lower forming blade serving in this case merely as a separator-plate for coperation with the ruflling blade, as the tongue 10a of the edge-folder serves to correctly position the adjacent edge of the fold for delivery to the rear-most needle which forms the second seam s.

In some cases, it is desirable to support the lower forming blade from the head of the bracket-arm, as represented in Figs. 12, 13 and 14:. In this case, the blade 71 and guideloop 72 are secured to a lateral ear 154 of a swinging lever 155 fulcrumed upon the studscrew 156 tapped into the bracket-plate 157 which is secured by means of screws 158 to the front of the bracket-arm head. The lever 155 has pivotally mounted thereon by means of the stud-screw 159 entering the aperture 160 therein the angular latch-plate 161 having at one edge the hook 162 and at the other edge the rib 163 formed with a hook 164. A spring 165 is interposed between the rib 163 and the bottom of a socket formed in the lever 155 to yieldingly maintain the latch-plate in locking position.

lVhen the lever 155 is in vertical or operative position, the hook 162 engages the lower edge of the catch-plate 166 which is secured by screws 167 to the edge of the bracketplate 157. By pressure of the finger-piece 168, the latch-plate 161 may be rocked to disengage the hook 162 from the catch-plate, so as to permit the lever 155 to be swung upwardly as represented in dotted lines in F ig. 12 for engagement of the hook 1611 with the stud-pin 169 upon the bracket-plate 157, from which it may be disengaged by pressure of the finger-piece 168 to rock the latchplate 161.

Having thus set forth the nature of the invention, what I claim herein is 1. A. sewing machine tuck-'folder coni-` prising overlying tuck-forming blades, a guide disposed in angular relation with and extending forwardly from the Lipper forming blade, and a smoothing member comprising two walls, one wall overlying the guide and substantially parallel with the upper .forming blade and the second wall disposed parallel with the guide, the said walls cooperating to fold a body fabric between them preliminary to action on the fold by the tuck-forming blades. I

2. A sewing machine tuck-folder comprising a standing guide having a flat operative face sustaining at its advance or delivery end a lateral tuck-forming blade bent downwardly toward the delivery end of the folder, a second forming blade normally arranged beneath and spaced from the first-mentioned blade and from said standing guide, and a smoothing member having portions overlying and substantially parallel with the faces of both said guide and the upper forming blade.

3. A Sewing machine tuck-folder comprising overlying and relatively yielding tuckforming blades spaced apart, a guide disposed in angular relation with and extending forwardly from the upper forming blade, and a smoothing member comprising two walls, one wall overlying the guide and substantially parallel with the upper forming blade and the second wall disposed parallel with the guide, the said walls coperating to fold a body fabric between them preliminary to action on the fold by the tuckforming blades.

4c. A sewing machine tuck-folder comprising a standing guide having a flat operative face sustaining at its advance or delivery end a lateral tuck-forming blade bent downwardly toward the delivery end of the folder, the edge of said blade merging into the upper edge of said guide, a fulcrum in angular relation with said operative face upon which said guide and forming blade are sustained, a spring for maintaining said parts yieldingly in normal position, a second forming blade disposed beneath and spaced from the first-named blade and from said guide, and a smoothing member having a portion overlying the face of said guide.

5. A sewing machine tuck-folder comprising a standing guide having a flat operative face sustaining at its advance or delivery end a lateral tuck-forming blade bent downwardly toward the delivery end of the folder, the edge of said blade merging into the upper edge of said guide, a fulcrum in angular relation with said operative face upon which said guide and forming blade are sustained, a lifting lever applied to said fulcrum whereby said forming blade may be raised, a spring for maintaining said parts yieldingly in normal position, a second forming blade disposed beneath and spaced from the first-named blade and from said guide, and a smoothing member having portions overlying the faces of both said guide and the upper forming blade.

G. A sewing machine tuck-folder comprising a standing sheet metal guide having the advance end portion turned over to aEord a lateral forming blade bent downwardly toward the delivery end of the folder with its edge merging into that of said guide, a second forming blade normally arranged beneath and spaced from the first-mentioned blade and from said standing guide, 'and a smoothing member overlying said guide.

7. A sewing machine tuck-folder comprising overlying tuck-forming blades spaced apart and supported from opposite edges, a guide disposed in angular relation with and extending forwardly from the upper forming blade, a smoothing member having portions overlying the faces of both said guide and the upper forming blade, a retractable carrier for said smoothing member, and means for locking it in retracted position. I

S. A sewing machine tuck-folder comprising spaced overlying tuclr-forming blades, a guide disposed in angular relation with and extending forwardly from the upper forming blade, a fabric supporting plate extending forwardly of said guide and having stepped faces forming a fabric bending ridge in substantial alinement with said guide, and a smoothing member overlying said guide in advance of the upper tuck-forming blade.

9. In a sewing machine, the combination with stitch-forming and feeding mecha nisms, of a laterally movable support, a standing guide with lateral tuck-forming blade. mounted upon said support, a second forming blade laterally movable and adapted for arrangement beneath the first-named forming blade and adjacent said standing guide, a smoothing member having operative portions overlying said guide and upper forming blade, and a vertically movable carrier sustaining said smoothing member.

lO. In a sewing machine, the combination with feedingmechanism, stitch-formingmechanism comprising spaced reciprocating needles arranged diagonally relative to the direction of feed, and a throat-plate provided with needle apertures, of a standing guide having a flat operative face, a laterally extending tuck-forming blade. sustained at the advance or forward end of said guide, and an edge-folder disposed adjacent said guide and provided at the opposite edges with forwardly projecting tongues extending beneath said forming blade, the

Copies of this patent may outer edge of each tongue crossing the path of its respective needle.

11. In a sewing machine, the combination with feeding mechanism, stitch-forming mechanism comprising spaced reciprocating needles arranged diagonally relative to the direction of feed, and a throat-plate provided with needle apertures, of a standing guide having a fiat operative face, a laterally extending tuck-forming blade sustained at the advance or forward end of said guide, and an edge-folder disposed adjacent said guide and provided at the opposite edges with forwardly projecting tongues extending beneath said forming blade and each crossing the path of its respective needle, one of said tongues extending in advance of the foremost needle.

12. In a sewing machine, the combination with feeding mechanism, stitch-forming mechanism comprising spaced reciprocating needles arranged diagonally relative to the direction of feed, and a throat-plate formed with raised work-sustaining portions containing apertures for the respective needles and with edges at substantially the same distances in front of the respective needle-s, of a standing guide having a flat operative face, a laterally extending tuck-forming blade sustained at the advance or forward end of said guide, and an edge-folder disposed in advance of the needles adjacent said guide and provided at the opposite edges with work-supporting tongues of unequal length extending beneath said forming blade and each terminating close to one of said raised portions of the throat-plate.

13. A sewing machine tuck-folder comprising a standing guide having a flat operative face sustaining at its advance or delivery end a lateral tuck-forming blade bent downwardly toward the delivery end of the folder and its edge merging into the upper edge of said guide, a fulcrum in angular relation with said operative face upon which said guide and forming blade are sustained, a lifting lever applied to said fulcrum whereby said forming blade may be raised, a spring for maintaining said parts yieldingly in normal position, and a second forming blade disposed beneath and spaced from the first-named blade and from said guide.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ALBERT H. DE VOE.

lVitnesses:

WV. P. STEWART, H. A. KORNEMANN, Jr.

be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.