US2062429A - Attachment for sewing machines - Google Patents

Description

Dec. 1, 1936.

c. SEAMAN ATTACHMENT FOR SEWING MACHINES Filed Sept. 19, 1935 2 Sheets-Sheet 1 v 'lNVENToR v (bar/es Seaman. T 94% v I ATTORN Dec. 1, 1936. Q SEAMAN 2,062,429

ATTACHMENT FOR SEWING MACHINES Filed Sept. 19, 1933 2 Sheets-Sheet 2 INVENTOR Y (fie/A35 Sea/710m Patented Dec. 1, 1936 UNITED STATES ATTACHMENT FOR SEWING MACHINES Charles Seaman, Hollis, N. Y.

Application September 19, 1933, Serial No. 690,037

14 Claims.

This invention relates to sewing machines and one of the objects of the invention is to provide new and improved mechanism for forming a simulation of piping upon an edge of fabric and at the same time giving the appearance to the fabric that its edge has been piped by hand.

Hitherto similar objects have been attained by applying and stitching a relatively narrow strip of suitable textile material to the raw edge of the fabric, but the mechanisms employed for this purpose have given the bound or piped edge of the fabric a machine formed appearance. In my improved device, however, while the piped or rolled edge is wholly machine formed from the material itself, the fabric has the appearance of having been processed by hand, and that a separate strip of material has been applied to the raw edge of the fabric.

Another object of the invention is to provide mechanism of the above character wherein the stitches upon one side-of the fabric are substantially invisible.

A still further object of my invention is 13011107 vide stitching mechanism of the above type wherein the puffed effect, desirable in piping, is given to integrally formed piping upon an edge of fabric without the use of a separate filler.

Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplifled in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings forming a part of this specification, and wherein similar reference characters refer to similar parts throughout the several views- Figure 1 is a top plan view of a portion of. a sewing machine upon which my improved attachment is mounted;

Figure 2 is a vertical sectional view of the mechanism shown in Figure 1 taken at right angles thereto;

Figure 3 is a longitudinal sectional view taken on the line 3-3 of Figure 1 looking in the direction of the arrows:

Figure 4 is a transverse sectional view taken on line 4-4 of Figure 3;

Figure 5 is a vertical sectional view taken through my improved device in the vicinity of the point of stitching;

Figure 6 is a perspective View upon an enlarged scale showing a piece of fabric the edge of which has been piped by my improved device, the layers of the fabric having been separated better to illustrate the manner in which the thread is looped through the piped edge of the fabric;

lll? 7 L? '9? YEW i P p tive, up an larged scale, showing the. manner in which the edge of the fabric is folded and also the manner I, in which the needle passes through same to stitch the folded edge of the fabric to the body thereof;

Figure 8 is a view similar to Figure 7 but show ing the needle passing through the folded edge of the fabric in a different position from that illustrated in Figure 7 Q Figure 9 is a view in perspective, similar-to'Figure 6; the layers of the folds of the fabric being separated better to illustrate the manner in which the thread is looped through the piped edge when the needle passes through the same, as illustrated in Figure 8-; s

Figure 10 is a view in perspective upon an en'- larged scale showing a section of fabric which has been piped or rolled by my improved devicel Referring now more specifically to" the drawings, the reference numeral I denotes the table of a sewing machine of the conventional form and:

The head carri'es the usual presser foot bar 3f and the reciprocating needle bar 4; The presser foot bar is spring held in its lowermost position, yielding in an upward direction under the thrust of the work feeding mechanism,asusual.

The reference numeral 5 denotesfa bracket fas" tened as by means of the cl'amp'screw 6 to the lower end of the'presser foot bar 3. An arm I of this bracket at its lower end is provided with the presserfoot shoe 8. The presser foot 9, formed of 1 spring metal is carried upon an integrally formed upstanding arm I0 a'd'justably mounted upon a stud screw l'l threaded into this presser foot supporting arm T. Stud screw H is provided with an integrally formed collar l2which engages with a collar l3 mounted upon the stud screw l I and in present instance made fast to the arm l0. Interposed between the supporting arm IU of the presser foot andarm 1-is the extensile spring M, the latter encircling the stud screw II.

By means of this construction it will be noted that the presser foot 9' maybe adjusted to or' from the path of the reciprocating needle, spring I4 normally holding the presser foot in its adjusted positions. p

The reference numeral l5 denotes a plate made fast to the table I of the sewing machine and upon this plate is mounted my improved attachment which I shall now proceed to describe. r

The reference numeral l6 denotes a block mounted upon or formed integrally upon the. plate l5; Positioned upon the block 16 behind the] shoulder'll thereof'isa bracket 18 which bracket has secured thereto the fabric edge rolling orforming guide ofmy'improved device. 4

Also supported upon the block I6 is a metallic strap 19 which strap is pivotally mounted upon the block by means of-the pivot screw l9". Strap l9 lies in a recess formed in the block l6, slight clearances indicated at 26 and 2| being provided between the edges of the strap and the walls which form the recess. These clearances 2| and 20 provide for a slight pivotal movement of strap I9 upon its point of pivotal support l9 Referring to Figure 1 of the drawings the reference numeral 22 denotes a pin having an eccentric portion 23. The pin 22 is so mounted as to have its upper end secured td the lever '25 and its I eccentric portion freely journalled m the strap 19. By means of this construction'it' "will be noted that a slight swinging movement can be imparted to the strap H! by manipulation of ,the lever 25. The purpose of this adjustment will be made apparent hereinafter.

Strap l9 at its forward end has attached thereto the leaf spring 26 and mounted as at 21 upon the outer end of the leaf spring 26 is a shoe 3!]. This shoe 30 and its mounting upon the leaf spring 26 is best shown in Figures 2 and 5 of the drawings, the working edge or. nose of the shoe being preferably rounded, as shown.

It will be noted that by reason of the slight adjustment given to strap l9 by means of the eccentric leverconstruction described, a swinging movement of lever will cause the shoe to be moved toward or from the path of the. needle.

In the present instance the needle is indicated by the reference .numeral 3| and it will be seen that the reciprocatory path of the needle is substantially tangent to the outer rounded edge or nose 32 of the shoe 3U.

Fastened to the upper surface of the leaf spring 26 at its outer end is a yoke 33 which yoke receives the end of a Z shaped bar 34, which bar is attached to the presser foot bracket 5 as by means of the set screw 35. The function of the bar 34 is to lift the attachment from the work when the presser footv bar 3 is raised by the usual lifting lever 36 upon thehead of the machine.

' in Figures 3 and 4 of the drawings.

This operation relieves the pressure upon the work so that the latter may be readily removed from the machine after the stitching thereon has been completed. Bar 34 has also a further function which will be described hereinafter.

Referring now to Figures 1 to 5, inclusive, of the drawings the reference numeral 3'! denotes generally the means for folding or rolling'the edge of the fabric and guiding it to the stitching means. This guide comprises a sheet of metal mounted upon the bracket l8. Inthe present instance the guide member is shown as soldered or otherwise made fast as at 38 to a leaf spring 39 clamped to the bracket [8 as by means of the clamp screw 39'; Clamp screw 39 also fastens to the bracket IS a metallic strip 40 which extends underneath the guide member 31 and provides a firm support therefor, but permits the guide member to move upwardly under the yielding of its spring support. In this connection it will be noted that the forward, lower end. of the guide rests upon the shoe 30 so that when that member is moved upwardly by the bar 34 the guide will be correspondingly moved upwardly.

The guide member 31 is substantially funnelshaped, as shown and locatedwithin the guide is a core pin 4|, said core pin being carried upon a bracket wire 42 so that it projects inwardly within the funnel-shaped guide member as best shown. Core pin 4| is spaced from the walls ofthe guide member as shown.

The cooperative action between the funnelshaped guide and the core pin 41,, in the present instance, is such that when an edge of the fabric is fed into the guide said edge is first folded or rolled upon itself to form the flap or layer 43 which is turned under as clearly shown in Figures 6, 7, 8 and 9 of the drawings.

The fold of this flap or layer is indicated at 44. Behind this fold the fabric is again folded upon ..itself as at in its passage through the guide so that when the edge of the fabric passes out of the funnel-shaped guide the outer edge thereof takes on the form illustrated in Figures 6 to 9, inclusive of the drawings.

.While I have shown the edge of the fabric to be folded or rolled twice upon itself as by means of the folds 44 and 45 it will be understood that the guiding means can be varied so that further folding operations can be accomplished as the edge of the material to be piped is passed therethrough, and it will be further understood that in this art the manner in which the folding of an edge of fabric or the folding of a strip of fabric in a guide of this character is largely dependent upon the width of the material that is fed through the guide. The material will accommodate itself to the form of the guide and be folded thereby in such a way that the folded portion will be discharged through the apex orifice of the funnelshaped guide, the number of folds or layers depending upon the size of the discharging orifice cf the guide with relation to the width and thick?- nessof the material fed thereinto.

The discharge end of the guide 31, as has been noted, is located directly above the nose or curved edge of the foot 36, and rests upon the latter, the inner end-of the guide being cut away as indicated inFigure 5 to permit the passage of the needle.

. The nose or curved edge of the shoe 30 is also located closely adjacent the working edge of the foot piece 9 leaving a space between these parts which forms the passageway for the reciprocating needle and for the work to pass through.

Referring now to the path of travel of the material being operated upon through the machine the edge to be piped or rolled is fed into the mouth of the funnel-shaped guide member 3'! from the front of the machine and passes through said guide member in a direction opposite to the position occupied by the operator. After the edge of the work has passed the stitching point and has been stitched it is then guided and fed rearwardly in a direction substantially opposite to the direction in which it is fed into the guiding meansthat is to say the folded or roll-ed edge of the work is bent or folded transversely about the shoe 35, returning after being stitched toward the position occupied by the operator, the stitching on the edge is accomplished at the point where the edge passes over the nose or curved forward edge of the shoe 30.

In order to accomplish this end I have reversed the usual operation of the feeding means of a sewing machine. By reference to Figures 2 and 5 of the drawings it will be seen that the teeth of the rack 45 are so formed as to grasp the piped edge of the material after the stitching operation has been accomplished and forces it rearwardly toward the operator as each stitching operation is accomplished.

The feed rack 45, in the present instance, is mounted upon the feed rack operating lever 41, the latter being journalled at one end as at 48 upon an arm 49 mounted upon the rock shaft 50 which shaft is rocked in the usual manner in consonance with the operation of the needle bar.

The opposite end of: thesrack. operatingrlever' l'l is forked as at 5| to receive. the pin carried by the arm 52, mounted upon a rock shaft 53 which is also operated in consonance with the operation 2 of the needle bar by the usual mechanism not shown herein. In order to accomplish this end.

the usual connection between the crank lever 54 operated by the sewing machine drive mechanism is reversed so that the feed rack is given an oscillatory movement in a manner reversed from that usually given such devicein a sewing machine whereby the line of travel of the finished material is in a direction toward the operator.

The needle it will be noted is slightlyhooked in the direction of the rounded edge of the shoe 30, the relation of the parts being such that the point of the needle impinges slightly upon the rounded edge or nose of theshoe, the needle yielding slightly as its point impinges upon said shoe and passes thereover.

Referring now to the manner in which the stitching is accomplished on the folded or rolled edge of a strip of fabric the latter reaches the point of stitching, as illustrated in Figure 5 of the drawings. The device is so mounted upon the machine with reference to the line of travel of the needle that the latter enters and leaves the fabric so as to take a small bite upon the inner surface of that portion lying in engagement with the nose of the shoe. Due to the fact that the folded or rolled edge, is bent transversely about the nose of the shoe, the needle in making this bite passes through the fabric twice, that is it enters and leaves the fabric slightly above the ;outermost portion of the transverse bend and enters and leaves the fabric slightly below said bend. The impinging of the needle point upon the nose of the shoes insures that the thread will be carried entirely through the fabric body.

Referring to Figure '7 of the drawings it Will be noted that after making. this slight bite entirely through the fabric it then picks up the fold 44 which has been fed to a position past the outermost part, nose or curved edge of the foot 30. I have denoted by the reference numeral 55 the location of the transverse bend in the fabric wherein the needle makes the small bite heretofore described, the thread being merely carried through the fabric to the longitudinal extent necessary securely to bind the body of the fabric to the folded or rolled edge thereof. The stitching, therefore, is substantially invisible on the side of the fabric opposite the rolled edge thereof.

Referring to Figure 6 of the drawings in forming the stitch one loop of the needle thread is partly concealed beneath the edge 44 of the fold while the other loop of the stitch, caught by the bobbin thread, is exposed on the face of the rolled or folded edge; The relation between the needle thread and the bobbin thread in accomplishing the stitching is indicated in Figure 6 by the stippled appearance of the latter.

In Figure 8 I have shown the needle as entering the edge of the fold at the bend of the fabric edge prior to its passage through the fabric proper. If the guiding attachment is properly adjusted with reference to the travel of the needle, the relation of the loops of the needle thread and the bobbin thread will be as indicated in Figure 9 of the drawings.

Whether or not the needle passes through the fabric proper'before it passes through the rolled edge beneath. the bend 55, it is intended that the needle shall barely pass through the material proper so that a very small portion of they needle thread will be visible on the face or the-fabric when a line of stitching has been accomplished.

Whenthe needle passes through the rolled or folded edge-of the material, as shown in Figure 8 it will be noted that the rolled edge is. first picked up by the needle before passing through the portion 55. It then passes through the lower portion of the rolled or folded edge and the stitching appears as shown in Figure 9, wherein the needle thread is exposed in two places upon the rolled edge surface. When the needle point enters the fabric proper before it picks up the rolled edge, as illustrated in Figure 7, the outer line of needle thread stitching visible in Figure 8 is partially concealed, beneath the outer edge of the fold, as shown in Figure 6, as already described.

Referring again to the oscillatory movement of the feed rack 46 it will be noted that in each upwardand rearward thrust thereof the presser shoe is lifted slightly and that this operation through the bar 34 slightly raises the shoe 30 whereby the pressure upon the finished work is relieved and its rearward travel, under compulsion of the feed rack, is facilitated.

It will also be noted that a narrow passageway is provided between the outer end of the presser foot 9 and the rounded edge or nose of the shoe 30. Thus the presser foot shoe 9 assists in holding the work so that the needle will perform its function as above described. The eccentric operated by the lever 25 provides a means whereby the rounded edge or nose of the shoe 30 with respect to the needle path may be adjusted to a nicety. It also provides a means whereby the length of the bite made by the needle through the fabric, as described, may be varied.

It may be observed that therounded edge of the shoe 30 in effect constitutes a platen upon which the work is supported while the needle point performs its functions upon that part of the folded or rolled edge located at the transverse bend of the roll or fold.

The needle moves in a path. located tangential- 1y" of the working face of the platen in making its bite into and: through the, fabric, the needle lightly impinging upon and glancing from the curved working face of the platen at each actuation'. It will be noted also that the presser foot is spring supported and cantherefore yield slightly under the impinging engagement of the needle. Provision is therefore made for suchyielding engagement between the needle point and the working face of the shoe or platen that the needle will make acomplete passage through the fabric at each actuation. The eccentric mechanism described provides for a most delicate adjustment.

In Figure 10 of the drawings I have shown a strip of finished fabric 56 having. the finished piped or rolled edge 51. The bites of the needle threadare indicated at 58 and the bobbin thread exposed upon the face of the outer of the piped finished fabric opposite the folded or rolled portion thereof. In this last mentioned operation the shape of the needle point would be changed slightly from that shown in the drawings, so that the splitting of the fabric layer lying upon the platen could be accomplished. The needle would make its bite within the layer of fabric lying upon the platen and would not directly impinge upon the latter.

Having thus described my invention the operation of the selected embodiment of the mechanism implied to carry it out has been made plain during the description of the construction of said mechanism.

It is evident that the great labor and expense involved in hand piping or hand rolling of a strip of fabric is eliminated by machine operation and at the same time the finished fabric has the appearance of having been processed by hand.

While in the finished or piped rolled edge of the fabric or garment the puffed effect is produced by asingle layer thereof, encased within the fold or roll, it is evident that a greater number of layers than one could be encased within 'the stitched fold or roll by slightly varying the dimensions of the guiding mechanism, or by feeding therein a greater width of the fabric, the edge of which is to be processed, or that a separate filler could be fed through suitable guiding means and led in the position to be encased in the roll or fold so as to give a greater puffed effect, if desired.

Thus by the above described construction, are accomplished among others, the objects herein-- before referred to.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention, which, as a matter of language, might be said to fall therebetween.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a sewing machine, in combination with stitching means including a reciprocating needle, of a spring supported platen shoe having a rounded edge against which the needle impinges, a guide for folding or rolling an edge of fabric so that the free edge thereof is encased within the fold or roll, means for drawing said folded or rolled edge of the fabric and the fabric itself through said guide and for bending said fold or roll transversely of its length and the fabric itself about the curved edge of said platen shoe, and for holding the work in position upon said platen shoe so that the needle when descending will pierce the fabric at the bend and then pick up an edge of said fold or roll whereby to stitch the fold or roll to the body of the fabric, said last named means being adapted to move the fabric and the stitched edge thereof rearwardly in a direction opposite to which it has ben moved to said platen through said guide.

2. In a sewing machine, in combination with stitching means including a needle, of a platen shoe having a rounded edge against which the needle impinges when descending through the work, a guide located upon the platen shoe adapted to produce one or more folds in the edge of a strip of fabric and for discharging said folded edge upon the rounded edge of said platen shoe, means for bending said folded edge and the fabric proper in a direction transverse to the length of said fold about the rounded edge of said platen shoe and for holding said folded edge and the fabric itself in such a position upon said platen shoe that the needle when descending will bite said fabric at the bend thereof and then pick up an edge of said fold whereby the fold will be stitched to the body of the fabric, said means being adapted to move the said fabric under the platen shoe in a direction substantially opposite to which it has been delivered by said guide to said platen shoe.

3. In a sewing machine, in combination with stitching means including a reciprocating needle, of a platen shoe having an edge against which the needle in its descent is adapted to impinge, of afabric guide located upon the platen shoe, a feeding device located beneath said platen shoe, said guide being adapted to fold an edge of fabric so as to provide an outer layer, an inner layer and at least one intermediate layer and to guide said fabric so folded and the fabric itself to the edge of said platen shoe, said guide and said feeding device being adapted to bend said folded edge of the fabric and the fabric itself about the edge of said platen shoe in such a position that the needle when descending will piece the bend of the fabric independently of the edge of the fold and will also pierce the edge of the fold whereby the fold is so stitched to the body of the fabric that one or more of said intermediate layers will beencased within the fold, and said feeding means being adapted to feed the fabric and the stitched fold thereof underneath the platen shoe in a direction opposite to which it has been delivered to the edge of the platen shoe by said guide.

4. In a sewing machine, in combination with stitching means including a reciprocating needle, a spring-supported guide member having a centrally located core adapted to produce folds in a strip of material to produce outer layers and one or more intermediate layers, a spring-supported platen shoe having its working edge located directly below the discharging end of the guiding means, and also having its working edge located within the path of travel of the reciprocating needle, and an oscillatory feeding device located underneath the platen shoe, adapted to seize the work and move the same rearwardly in a direction opposite to that in which it has been fed to the working edge of the platen shoe by said guiding means.

5. In a sewing machine in combination with stitching means, including a reciprocating needle, of a presser foot, a spring carried platen shoe adapted to support the work, said presser foot and said platen shoe being spaced apart so that the work can pass therebetween, said space also providing a passageway for the needle, and means for connecting the presser foot with the platen shoe so that when the former is raised the latter will also be raised from the work.

6. In a sewing machine, in combination with stitching means including a reciprocating needle, a presser foot spring pressed in a downward direction, a platen shoe, a spring carried presser shoe having its forward edge adapted to support the work, said presser foot and said platen shoe being spaced apart so that'the work can pass therebetween, the space between said elements also forming a passageway for the reciprocating needle, a bar connecting the presser foot with the platen shoe so that when the former is lifted the platen shoe will be lifted from the work, and means for raising the presser foot.

'7. In a sewing machine, in combination with stitching means including a reciprocating needle, of a presser foot spring pressed in a downward direction, a spring-supported platen shoe adapted to rest upon the work, a spring-supported fabric guide resting upon the platen shoe, said presser foot being spaced from said platen shoe and said guide so as to form a passageway for the work, and also for said reciprocating needle, a bar connecting the presser foot with the platen shoe so that when the former is raised said platen shoe and said guide will be also raised, and means for raising the presser foot.

8. In a sewing machine, in combination with stitching means, including a reciprocating needle, of a presser foot spring-pressed in a downward direction, a spring supported shoe mounted upon the presser foot, a spring-supported platen shoe mounted in a position opposite the said presser foot shoe, said last named elements being spaced apart to provide a passageway for the work, and also for said needle, and means whereby said presser foot shoe and said platen shoe may be adjusted with respect to each other to vary the width of said passageway.

9. In a sewing machine, in combination with stitching means, including a reciprocating needle, of a pressure foot shoe spring-pressed in a downward direction, a spring supported platen shoe mounted in a position opposite the said presser foot shoe, said last named elements being spaced apart to provide a passageway for the work, and also for said needle, means whereby said presser foot shoe and said platen shoe may be adjusted with respect to each other to vary the width of said passageway, a connection between said presser foot and said platen shoe whereby they may be raised in unison, and means for raising the presser foot.

10. In a sewing machine, in combination with stitching means, including a reciprocating needle, of a presser foot shoe spring-pressed in a downward direction, a spring supported platen shoe mounted in a position opposite the said presser foot shoe, said last named elements being spaced apart to provide a passageway for the work, and also for said needle, means whereby said presser foot shoe and said platen shoe may be adjusted with respect to each other to vary the width of said passageway, a connection between said presser foot and said platen shoe whereby they may be raised in unison, means for raising the presser foot, an oscillatory feed rack bar located beneath the presser foot and the platen shoe adapted to raise both of said parts during its oscillatory movements in feeding the work.

11. In a sewing machine, in combination with stitching means including a reciprocating needle, of an adjustable support for the work located adjacent the stitching point, means for guiding the work to said support in a position to be stitched thereon, means for drawing the work through said guide and over said support in one direction and for returning the finished work in a direction opposite to that in which it is drawn to said support, a presser shoe having a springsupported work engaging member, spaced from the work support to provide a passageway for the work therebetween, and oscillatory feeding means located beneath the presser foot shoe and said work support adapted to raise both said presser foot and said work support upon each of its oscillatory movements.

12. In a sewing machine, in combination wit stitching means including a reciprocating needle, of a spring-pressed presser foot having a springsupported work engaging member, a spring-supported platen shoe having a work supporting edge, said work engaging part of the presser foot and said work supporting edge of said platen shoe being spaced apart to provide a passageway for the work therebetween, and also for said reciprocating needle, said presser foot and said platen shoe being relatively adjustable to vary the width of the passageway therebetween, and an oscillatory feed rack bar located underneath the presser foot and the platen shoe adapted to feed the work under said platen shoe in a'direction away from the presser foot.

13. In a sewing machine, in combination with stitching means including a reciprocating needle, of a spring-pressed presser foot having a spring-supported work engaging member, a spring-supported platen shoe having a work supporting edge, said work engaging part of the presser foot and said work supporting edge of said platen shoe being spaced apart to provide a passageway for the work there-between, and also for said reciprocating needle, said presser foot and said platen shoe being relatively adjustable to vary the width of the passageway there-between, an oscillatory feed rack bar located underneath the presser foot and the platen shoe adapted to feed the work under said platen shoe in a direction away from the presser foot, means for connecting the presser foot and the platen shoe whereby when the former is raised the latter will be lifted from the work, and means for raising the presser foot.

14. In a sewing machine, in combination with stitching means including a reciprocating needle, of a spring-pressed presser foot having a springsupported work engaging member, a spring-supported platen shoe having a work supporting edge, said work engaging part of the presser foot and said work supporting edge of said platen shoe being spaced apart to provide a passageway for the work therebetween, and also for said reciprocating needle, said presser foot and said platen shoe being relatively adjustable to vary the width of the passageway therebetween, an oscillatory feed rack bar located underneath the presser foot and the platen shoe adapted to feed the work under said platen shoe in a direction away from the presser foot, means for connecting the presser foot and the platen shoe whereby when the former is raised the latter will be lifted from the work, means for raising the presser foot, a guide located upon the platen shoe adapted to fold the edge of a strip of fabric and deliver the same to the working face of the platen shoe and into said passageway, so that stitching can be effected by said needle to fasten the folded portion of the edge of the fabric to the body of the fabric, and an oscillatory feed rack bar located beneath both the presser foot and the platen shoe adapted to engage the finished work and to move the same rearwardly beneath said platen shoe.

CHARLES SEAMAN.

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