US2109441A - Folding and pressing attachment for sewing machines - Google Patents

Description

Feb. 22, 1938. T. A. ANDERSON 2,109,441

FOLDING AND PRESSING ATTACHMENT FOR` SEWING MACHINES Filed July 22, 1956 3 Sheets-Sheet 1 ZzomawAAnderJon Feb. 22, 1938. .'r. A. ANDERSON v 2,109,441

FOLDING AND PRESSING ATTACHMENT FOR SEWING MACHINES Filed July 22, 1956 5 Sheets-Sheet 2 l me/YW:

26 5'0 26- T/omasA.A72dera;on

' um v Gum/ww.

Feb. 22, 1938. T. A. ANDERSON 2,109,441

FOLDING AND PRESSING ATTACHMENT FOR SEWING MACHINES Filed July 22, 1936 s sheets-sheet 5 l fel Ilflll Patented Feb. 22, 1938 2,109,441 FOLDING AND PRESSING ATTACHMENT FOR SEWING MACHINES y Thomas A. Anderson, HartwelLGa., assignorto The Patent Button Company, Waterbury, Conn., a corporation of Connecticut Application July 22, 193s, serial No. 92,038

13 Claims.

My invention relates to new and useful improvements in attachments for sewing machines, and more particularly to an attachment that will fold back the marginal edges of the fabric adjacent the line of stitching and press these sofolded edges in a neat and workmanship-like manner. l

rlhe invention in its broadest aspects is similar to the joint invention of Tom Anderson, Hugh Grifih, and C. M. Henson, filed on December 11, 1934, Serial Number 756,998, for Folding and pressing attachment for sewing machines, and allowed January 6, 1936 resulting in Patent Number 2,055,470 issued on September 29, 1936.

In that application, there was provided a swinging frame mounted on the bed of the sewing machine, in which frame there were horizontally mounted an over-running clutch and a heated roll which cooperated with an idle roll also mounted on the swinging frame, the driving mechanism being connected through the frame and to the over-running clutch and presser roll.

The present invention contemplates a greatly simpli-led structure, as the horizontal frame on the bed plate has been dispensed with, as well as the horizontal shaft which supported the overrunning clutch and presser roll.

Many other distinguishing features are present, which will be noticed as the specification proceeds.

One of the main objects of the present invention is to provide a simple and elcient means of turning back the marginal edges of the cloth adjacent the line of stitching, one of the marginal edges being turned upwardly before it reaches the needle and the other marginal edge being turned downwardly just after it passes the needle, so that by the time the fabric and its marginal edges have reached the presser rolls, they extend in the desired opposite directions to then oe properly pressed.

A further object of the invention is to provide a small auxiliary table that is mounted on the bed of the machine adjacent the needle. This auxiliary table being sightly raised from the main table permits the fabric to be fed to the needle and, at the same time, allows for theV vide this auxiliary bed plate together with its associated parts so that one layer of the cloth, when it passes under the presser foot, will have its margin turned in an upward direction and will be held in this position until it strikes the presser rolls, whereas the under layer of cloth will remain in its flat or horizontal position until it reaches a point just beyond the needle, where it will be deiiected and turned downwardly to a vertical position, so that as both marginal edges reachl the rolls, they will be in position to be properly pressed.

Still another object of the invention is to provide an attachment for pressing the Vmarginal edges of the seamed fabric back on the fabric to thus do away with the hand ironing or pressing that is generally a separate operation.

Still another object of the invention isto provide an attachmentthat may be readily fitted to a conventional type of sewing machine, it necessitating a changing of but relativelyv few parts and the addition of others that may be quickly performed by any mechanic skilled in the art.

Still another object of the invention is 'to provide an attachment that will position the marginal edges adjacent the seams, so that they may be properly folded and positioned just prior to the pressing action.

Still another object of the invention is to provide a worm and pinion arrangement for driv- .ing the presser roll that is synchronized with the feeding dog mechanism ofthe sewing machine, so that the attachment will also assist in the feeding of the fabric to and away from the needle. ,c

Still another object of the invention is to pro'- vide an attachment wherein there are butv relatively. fewparts above the table of the machine and these few parts arranged adjacent the presser foot and needle.

Still another object of the invention is to provide a simplified presser attachment wherein the presser roll is set in a vertical position and operated directly from the main shaft of the sewing machine.V

Still another object of the invention isto provide a pressing attachment that may Yloe relatively quickly and easily applied to the conventional type of sewing machine, and wherein if it is desirable to omit the pressing on certain forms of goodsthe only change necessary will be to loosen the set-screw in the roll and remove the roll and use the machine in the ordinary manner.

Still another object of the invention is to provide a simplified feeding and pressingfattachment that is relatively cheap to manufacture, efficient in service, and neat and compact. "in form and arrangement.

With these and other objects in view, the invention consists in certain new and novel features and combinations of parts, as will be hereinafter more fully explained and pointed out in the claims.

Referring now to the drawings,

Fig. 1 is a front elevation of a sewing machine head with my improved seam pressing attachment embodied therein;

Fig. 2 is a fragmentary top plan View, on an enlarged scale from Fig. 1, taken just below the overhanging arm and with vthe, table removed x to show the arrangement of the various parts;

Fig. 3 is a transverse sectional view taken substantially on the line 3-3 of Fig. 2;

Fig. 4 is a section taken substantially on the line 4 4 of Fig. 2;

Fig. 5 is a fragmentary top plan View of my improved attachment showing the guide plate and presser rolls which perform the guiding and pressing of theY fabric;

Fig. 6 is a fragmentary plan view of the auxiliary table or bridge plate mounted on the table of the machine and over which the fabric passes to be stitched and pressed;

Fig. 6a is a fragmentary section taken on the line Ba-Sa of Fig. 6;

Fig. 6b is a sectional View taken Von the line ISD-5b of Fig. 6;

Fig. '7 is a detail of the guide plate of the attachment;

Fig. 7a is a side view of the plate shown in Fig. 7;

Fig. 8 is a top plan of one of the pressing rolls and its mounting with parts broken away for the sake of clearness of illustration;

Fig. 8a is a side elevation of the same;

Fig. 9 is a sectional view taken on the line 9 9 of Fig. 5 and showing the fabric as it appears when first inserted in the machine embodying this attachment;

Fig. 10 is a similar View taken on the line Ill-I of Fig. 5 showing the fabric in its further progress and just before it passes through the pressing rolls;

Fig. 11 is a fragmentary detail View showing the manner in which the lower marginal edge is deflected downwardly'while the upper marginal edge is shown in` its vertical position, and the now-positioned edges about to enter the pressing rolls;

Fig. 12 is a fragmentary rear elevation showing the seam open and the marginal edges being pressed in this position.

It might be mentioned at the outset that I have illustrated only so much of the sewing machine as thought necessary to illustrate the manner in which the attachment is applied and the relative positions of the parts of the attachment as associated with its cooperating parts of the sewing machine.

Referring now for the moment to Fig. 1; there is shown a sewing machine head consisting of the base I, standard 2, overhanging arm 3, and table 4, while above this table may be seen a part of the attachment that forms the subjectmatter of the present invention.

Sewing machine-feed mechanism Referring now for the moment to Fig. 2, and outlining briefly those parts of the sewing machine thought necessary to enumerate to understand the present invention, there may be seen the main drive shaft with a fragmentary part of the oil reservoir E to the rightof the gure,

while secured near the outer end (left of the i'lgure) is an arm 1, which is pivoted on a frame, which, in turn, is pivotally mounted on a rock shaft 8 mounted in suitable bearings 9 and I0. The arm 1, shown in dot and dash lines in Fig. 3, is rocked from the main drive shaft 5 through the eccentric Il and its strap I2 connected to the arm l at the point I3. The arm 1 is also connected to the vertical frame or link I4, while at the top of this link is further pivoted the arm I5, which extends forwardly of the machine to substantially beneath the presser rod I6. The outer end of the arm I5 is enlarged and provided with a guideway I1, in which is adjustably mounted the feeding dog I8, the lower portion of which is provided with the bifurcated short arm I9, which ts within the aforementioned guideway I'I, so that the feeding dog I8 may be slightly adjusted vertically and held in the desired position by the clamping screw 20'.

Asv far as the specication has proceeded, it will be seen that a rotation of the main drive shaft 5, through the aforementioned eccentric strap I2, arm l, and arm I5, will impart a horizontal reciprocatory motion to the feeding dog I8.

To impart the vertical reciprocatory motion to the feeding dog I8, a depending arm 2|, forming a part of the arm I5, is secured at its lower end to theeccentric strap 22, which, in turn, cooperates with the eccentric 23 mounted on the main drive shaft 5. Thus, the properly timed horizontal and vertical reciprocatory motions impart the desired compound motion to the feeding dog I8 to feed the cloth through the machine, with the assistance of the presser foot, in the conventional manner.

Looper To impart the desired movement to the looper mechanism, there is shown an auxiliary or rock shaft 24, which is suitably mounted in bearings 24', and from which shaft extends the curved arm 25 (seeFig. 3) to which, in turn, is secured the eccentric strap 25, which' cooperates with the eccentric 27 also mounted on ythe main drive shaft 5, so that the rotation of the main drive shaft 5 also rocks or oscillates the aforementioned auxiliary or rock shaft 24. This rock shaft 24 has a sleeve 28, which is held in position by the set-screws 29, which, in turn, carry the bearing 30, in which the stub shaft 3! is mounted, and on which shaft is pivotally mounted the arm 32, to the upper end of which latter is adjustably secured the looper 33 that can be seen just adjacent the needle 34.

The mechanism just described provides the lateral or needle-avoiding movement of the thread looper.

To provide the I reciprocatory motion to the thread looper, there is shown the link 35, which is adjustable by providing the internally threaded barrels 3B and the right and left-hand threaded member 3T, so that an adjusting movement of this right and left-hand threaded member 3'I will cause a shortening or lengthening of the link 35, depending upon the direction in which it is turned. This link is reciprocated from the shaft 5 by a cam (not shown) Due to the compound movement, that is, the needle-avoiding movement and the reciprocatory movement, the threaded looper may pass and avoid the needle in properly timed relation with the vertical reciprocatory movement of the needle 34.

Having thus briefly described one form of conventional machine with which the seam pressing attachment may be used, reference will now be made to the attachment forming the subjectmatter of the invention.

Referring again for the moment to Fig. 2, there will be seen rigidly secured to the main drive shaft a worm 33, which, in turn, drives the pinion 36, which is rigidly secured to the Vertically extending shaft 40. This shaft is mounted in the housing 4l secured on the base I. On the upper portion of the shaft 46 may be seen the knurled roller 42, which may be removably fixed to the shaft 40 by the Allen hollow screw Y43. The pinion 39 for driving the shaft 46 vwill also be locked by the hollow set-screw 44 and may be changed or replaced, ifv ever necessary. Y

Now the ratio of the worm and pinion for driving this knurled roller 42 is commensurate with the rate of feeding movement of the feeding` dog mechanism, so that not only will this roller press the seams, as will be shortly described, but it will also give a slight pulling movement to the fabric from the seaming operation. Thus, there is no possibility of the work being jammed between the needle and the feeding rolls, and by thus properly timing the roll with the feeding mechanism the fabric will be advanced in proper time with the feeding and stitching operations.

It will be noticed in Fig. 2 that the arm l5 is cut away, as at I5', to clear the lower portion of the periphery of the knurled roller 42.

Referring now to that part of the attachment which is mounted above the table, attention is drawn particularly to Figs. 3 and 5.

On the table 4, as may be seen in Fig. 5, there is mounted an L-shaped bracket 45 having the short leg 46 and the long leg 41, the short leg, in turn, having a pin 48 secured thereto, which is mounted in the table and has secured to its lower portion the arm 49, which extends in substantially the same direction as the short leg 46.

At the outer end of this arm 49 may be seen aY spring 5G, which is secured, as at 5I, to the under surface of the table. so that the long leg 41 is normally held inwardly under tension toward the roller 42.

It will be noticed that the leg 41 is the support or housing for a companion roll 52 to the knurled roller 42. Directly in back of the roll 52 may be seen the small dogr or guide 53, which is pivot-ally mounted, as at 54, and also held under tension by the spring 55. This dog 53, as will be mentioned later, bears against the presser foot, about to be described, and insures the proper feeding of the cloth to the driven and idle presser rolls 42 and 52 just mentioned.

In Figs. 3 and 6. it will be noticed that the table 4 is provided with what I term an auxiliary table or bridge 56, which extends upwardly from the normal plane of the table 4, and it is on the bridge 56 that the cloth is placed when being fed to the needle and rolls. f

This bridge may be in the form of a pressed or molded plate, having the front wall 51, Fig. 3, while the flat upper surface has the two elongated cut-out portions 58, in which the feeding dog I8 oscillates and the central opening 59, Fig. 6, through which the needle operates. There is a rear wall 6B of the bridge that extends downwardly and outwardly and is then secured to the under surface of the table 4, as at Si. Just in front of the bridge, as may be clearly seen in Fig. 3, there is a small inclined member 62 to fav cilitate' thevfeeding of the cloth and prevent it from striking the vertical wall 51.

In Fig. 6a, there is shown a detail section taken across the front of the bridge to show its contour, and Fig. 6b is a longitudinal section showing the configuration of the bridge throughout its length.

It will be noticedin Fig. 6 that the top surface of the bridge slopes downwardly, as at 63, from the side of the plate toward the rear thereof to permit the marginal edgeof the cloth, that is to be pressed back, to deflect downwardlyand be guided in this deflected, now vertical, position until it reaches the rolls. There will also be noticed that formed on the bridge, that is, from front to rear, is the elevated portion 64, which conforms inoutline tothe outline of the presser foot 65.

It will be understood that the ordinary presser foot is removed from the presser rod I6 and the present presser foot 65 substituted therefor.

The presser foot 65 is turned up at its forward end, as at 66, to facilitate the entry of the cloth thereunder and is also provided with a needle opening 61. The presser foot is rockably secured, as at 68, to the short arm 69, which is, in turn, clamped to the lower end of the presser rod I6. This rockable movement allows the presser foot to rock or to `adjust itself to firmly press the fabric against the feeding dog.

The rear end of the presser foot tapers to a point extending in a direction centrally between the two rolls 42 and 52 and conforms in shape to the raised portion 64 of the bridge plate, as shown in Fig. 6.

It will be noticed that the longer leg 41 of the bracket 45 is slightly above the, plane of the raised portion: 64 over which, it will be remembered, extends the presser foot (see Fig. 9) and the upper surface of the leg 41 slopes laterally downwardly toward the plane ofthe raised portion 64. y

It might be mentioned here that the leg 41 also, near its outer end, is bifurcated, as at 41', to receive the heretofore mentioned roll 52, the dog 53, and spring 55.

Also mounted on the bridge is the irregularly shaped guide plate 1l, which has the straight edge 12 and the rounded outer edge 13, the straight edge 12, however, deflecting inwardly, as at 14. This plate 1I, at its outer end, is pro'- vided with what might be termed a sh-tail portion extending at right angles to the upper surface of the plate to properly guide the opened margins of cloth. On the under surface of the plate there may be seen a small spacing block 16, while at its forward end there is a pin 11, which extends through the table 4 and has secured to its lower end a spring 18, which is fastened, as at 19, so that when the plate is in position, as shown in Fig. 5, the rear end with the fish-'tail portion abuts against the raised portion 64 of the bridge and againstthe tapered end 10 of the presser foot, and it is the lower edge of this fish-y tail that deflects the marginal edge of one of the pieces of fabric being stitched. The guide plate 'il is pivotally mounted at the point 88 on the bridge.

By providing the small spacing blocks 16, the upper surface of the plate 1l will extend in a, plane slightly above the upper surface of the presser foot, so that when one layer of the cloth is passed under the guide plate 1l and the presser foot is lowered into its holding position, the marginal edge of the yother piece of `fabric lwill assume the upright position, as shown in Fig. 9.

Having described the sewing machine in general and the structure of the attachment in particular, a brief description of the operation of the attachment follows.

Operation Referring for the moment to Fig. 9, there will be seen two pieces of fabric A and B, which are to be stitched, as at S, and which are to have the marginal edges a and b turned back on the cloth and neatly pressed.

The pieces of cloth A and B will be positioned as shown in Fig. 9, that is, the piece A will be laid on top of the L-shaped bracket 45 to pass under the presser foot 65 and then extend upwardly between the edge of the presser foot and the straight edge 'I2 of the plate 1l. The piece B passes under the L-shaped bracket, under the presser foot S5, and beneath the plate 12, the spacing block 76 on the under side of the plate providing clearance for the cloth and limiting the amount of the marginal edge b to be turned back.

The presser bar having been elevated by a lever (not shown) will then be lowered, so that the cloth, just before the stitching proceeds, will be in the position as shown in Fig. 9, that is, the marginal edge -a in a substantially upright position and the marginal edge b in a horizontal position.

The machine will then be started and the layers of cloth advanced until engaged by the feeding dog. As the material advances, it will be stitched and the marginal edge a of the piece A will pass along the presser foot until it reaches the tapered portion of the presser foot and the fish-tail of the plate 1|, where it will still be guided in this upright position until it has engaged or passed into the bight of the rolls. The marginal edge b of the piece B, however, will pass along in a horizontal `plane until it strikes the lower inclined edge of the fish-tail 15, as may be seen in Fig. l1, which deflects it in a downward direction, it being remembered that this is permitted by the cut-away or inclined portion of the bridge, as at 63. The upper inner surface of the fish-tail, as will be remembered, holds the marginal edge Iat inan upright position, Fig. 1l.

Thus, it will be seen that the fish-tail not only, by its inner surface, holds the upper marginal edge a, in an upright position, but it also, by its lower edge, deects the marginal edge b downwardly and, when so deflected, also holds the marginal edge b in the same vertical plane as the marginal edge a.

Therefore, when the cloth, with its stitching and its marginal edges, reaches the rolls, the one marginal edge is turned upwardly and the other turned downwardly and in a position to be pressed.

'Ihe tension on the spring 5B together with the relatively long arm holds the idle roll 52 tightly against the cloth and against the larger driven roll 42.

In Fig. 12, the fabric is shown as passing between the two rolls, and after the material has been passed through the rolls and the two layers opened out, the now-pressed marginal edges a and b will lie neatly and flatly folded and pressed back on the cloth.

From the foregoing, it will be seen that I have provided an extremely simple and eicient attachment that may be readily applied to conventional types of sewing machines that will neatly fold and press the marginal edges of the cloth adjacent the seam back on the cloth and thus do away with the later hand ironing.

Furthermore, I have provided an attachment wherein the main pressing roll is driven from the main shaft of the machine, and by using a proper ratio of worm and pinion, the pressing roll supplements the normal feeding mechanism of the sewing machine.

Consequently, the machine may be run at a very high rate of speed without any danger of the fabric jamming between the needle and the rolls. Furthermore, there are but few parts above the table, and these parts in no way hinder the normal sewing operation.

Lastly,'when the machine is to be used otherwise than for pressing the seams, either one or both rolls may be removed with but little diliculty.

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

l. In combination with a sewing machine, a fabric folding and pressing mechanism secured to the sewing machine to fold and press the marginal edges of the fabric as the latter leaves said machine including a worm mounted on the main drive shaft of the machine, a pinion and shaft operated by said worm, a roller on said shaft, a pivotal arm having a loosely mounted roller therein and cooperating with said rst-mentioned roller, a presser foot, a bridge plate having an elevated portion beneath thel presser foot, a guide plate cooperating with the presser foot and the said elevated portion, and the rear end of said guide plate delecting one edge of the fabric downwardly and holding the other edge upwardly and the said edges pressed in this position as they pass from said presser foot and guide plate through said aforementioned rollers.

2. In combination With a sewing machine, a fabric folding and pressing mechanism secured to the sewing machine to fold and press the marginal edges of the fabric as the latter leaves said machine including a bridge plate mounted under the needle, said bridge plate having a raised eX- tension, a presser foot of the same shape as said raised extension, a pivotal plate cooperating with the presser foot and raised extension to deflect the marginal edges of the cloth in opposite directions, an idle roll and a driven roll located directly beyond the presser foot and the driven roll driven with the feeding mechanism of the machine.

3. In combination with a sewing machine, a fabric folding and pressing mechanism secured to the sewing machine to fold and press the marginal edges of the fabric as the latter leaves said machine including a presser foot tapering toward a point at its rear end, a pivotal plate mounted adjacent said presser foot and having angular means at its end for cooperating with the tapered portion ofthe presser foot in deecting the marginal edges of the fabric fed through the machine, and pressing rolls located just beyond said presser foot one of which is an idle roll and the other of which is a driven roll and the latter driven with the feeding mechanism of the sewing machine.

4. In combination with a sewing machine, a fabric folding and pressing mechanism secured to the sewing machine to fold and press the marginal edges of the fabric as the latter leave said machine including a rockable presser foot tapering toward a point at its rear end, a pivotal plate mounted adjacent the said presser foot and having a block on its under surface for holding the cov same in a slightly elevated position, means at the end of the plate for deflecting the marginal edges of the fabric fe'd through the machine, pressing rolls located just beyond said presser foot one of which is driven with the feeding mechanism of the sewing machine, one of said rolls being mounted on an L-shaped bracket, an arm on said L-shaped bracket and extending below the table of the sewing machine and held underv tension for holding the two aforementioned rolls in pressing relation.

5. In combination with a sewing machine, an attachment secured thereto for folding and pressing the marginal edges of the fabric adjacent the seam, including driven and idle cooperating rollers located beyond the needle, a horizontally mounted plate, an elongated presser foot tapering at its rear end toward the rollers, a bridge plate having a similarly tapered elevatedV portion beneath the presser foot, means at the rear end of said plate cooperating with the elongated presser foot for turning one of the marginal edges upwardly and said means cooperating with said elevated portion for deflecting downwardly the other marginal edge of the fabric after it passes the needle, the presser foot and the said elevated portion and said plate holding and directing the marginal edges while in said position to said rollers, and means for driving the driven roller.

6. In combination with a sewing machine, an attachment secured thereto for folding and pressing the marginal edges of fabric adjacent the seam including an idler roller and a driven roller located beyond the needle, an elongated presser foot tapering at its rear end toward the bight of the rollers, a bridge plate having a similarly tapered elevated portion beneath the presser foot, a pivotal plate having a fish-tail at one end lying adjacent the tapered surface of the said presser foot and against the tapered surface of the elevated portion, the presser foot and part of the fish-tail adapted to hold the marginal layer of one edge of fabric in an upright position and another portion of the fish-tail adapted to deflect the marginal edge of the other layer of fabric downwardly, the said tapered edge of the presser foot and the tapered edge of the elevated portion and the fish-tail holding the said marginal edges in the said positions as the layers reach the rollers, means for driving the driven roller with relation to the feeding mechanism of the sewing machine whereby the said rollers will assist in the feeding of the material to and from the needle and will press said marginal edges back on the said fabric.

7. In combination with a sewing machine, a fabric folding and pressing mechanism secured to the sewing machine to fold and press the marginal edges of the fabric as the latter leaves said machine, including a vertically mounted roller driven from the main shaft of the sewing machine, an idler roller held under tension against said roller, an elongated. presser foot tapering at its rear end, a bridge plate having an elevated portion similarly tapered directly beneath the presser foot, a pivotal guide plate having an extension at right angles to the body of the plate cooperating with the presser foot, and the taper of said elevated portion for holding the marginal edges in a desired position as they pass from said guide plate, elevated portion, and presser foot to said rollers.

8. In combination with a sewing machine, a raised bridge mounted on the table of the maatingwith the tapered' point of the presser foot andthe taperedtpoint of the kelevated portion for turning thernargi'rialfedges of the fabric, and an idle roller and driven roller located just b'eyond the tapering point of the presser foot and elevated portion for pressing the marginal seams of the fabric after having been turned.

9. In combination with a sewing machine, a

fabric folding and pressing mechanism secured to the sewing machine to fold and press the marginal edges of the fabric as the latter leaves said machine, including a vertically mounted roller driven from the main shaft of the sewing machina-an idler roller held under tension against said roller, an elongated presser foot tapering at its rear end, a bridge plate having an elevated portion similarly taperedY directly beneath the presser foot, a pivotal guide plate having an extension at right angles to the body of the plate cooperating with the presser foot and the taper of said elevated portion for holding the marginal edges in a desired position as they pass from said guide plate, elevated portion, and presser foot to said rollers; and a dog bearing against the oppositely tapered portion of theV presser foot and elevated portion to also assist in holding the seam as it passes to said rollers.

10. In combination with a sewing machine, a

fabric folding and pressing mechanism securedk neath the presser foot, a dog mounted directly in front of the idle roller and cooperating with the fish-tail, the presser foot, and the elevated portion beneath the presser foot for holding and guiding the fabric as it passes to said rollers,

11. In combination with a sewing machine, a fabric folding and pressing mechanism including a bridge plate having an elevated portion tapered at its one end, a presser foot of the same shape directly above said elevated portion, a guide plate having a fish-tail thereon cooperating with thetapered portion of the presser foot and the tapered portion of the elevated portion, a dog mounted oppositely thegsh-tail for assisting in the folding of the fabric, and an idle roller and a driven roller for pressing the fabric directly after passing beyond the sh-tail and dog.

12. In combination with a sewing machine, a fabric folding and pressing mechanism including a vertically mounted driven roller, an idle roller mounted on an L-shaped bracket bearing against said first-mentioned roller, a dog mounted in the bracket carrying the idle roller, a bridge plate having an elevated tapered portion and a presser foot mounted on said elevated portion, a guide plate extending down the side of the presser foot and having a fish-tail on the end thereof dis-Y posed directly across from the aforementionedhaving an elevated portion similarly tapered directly beneath the presser foot, a pivotal guide plate Yhaving a fish-tail extending at right angles to the body of the plate cooperating with the presser foot and the elevated portion for holding the marginal edges in a desired position as they pass t0 the needle, and a dog also cooperating with the opposite side of the presser foot and elevated portion for assisting in holding the fabric as it passes to the rollers. f

THOMAS A. ANDERSON.

Images