US2635569A

US2635569A - Sewing machine

Info

Publication number: US2635569A
Application number: US198650A
Authority: US
Inventors: Krohn Arnold
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-12-01
Filing date: 1950-12-01
Publication date: 1953-04-21
Anticipated expiration: 1970-04-21

Description

Filed Dec. 1, 1950 4 Sheets-Sheet 1 April 21, 1953 A. KRol-IN 2,635,569

SEWING MACHINE Filed Dec. l. -14950 4 Sheets-Sheet 2 April 2'1, 1953 A. K'RoHN 2,635,569

SEWING MACHINE l Filed Dec. 1, 1950 4 Sheets-Sheet 3 April 21, 1953 A. Knol-1N .25635569 SEWING MACHINE Filed De. 1', 1950 4 Sheets-Sheet 4 skilled operators.

Patented Apr. 21, y1953 UNITED sTATEs PATENT OFFICE Arnold Krohn, Whitman, Mass.

Application December 1, 1950,V Serial No. 198,650

This invention relates to a machine for applying y stitching to articles which is functional and/or decorative, and more especially to an improved sewing machine for sewing stitches in a predetermined pattern.

It is customary in leather manufacture, particularly in the manufacture of shoes, belts, pocketbooks, etc. to make the stitching joining parts decorative as well as useful. While some of this stitching is along a single line and causes little difficulty, a very common practice is to sew a closed figure in which the stitching takes the shape ofja long lnarrow rectangle called a box bar. Ifthe work is flat and of not too large area, it may be turned by the operator by lifting the presser foot, shifting the work and then letting` the presser foot down again and resuming stitching. Some machines havea feed dog mounted to turn about a vertical axis of the needle as a center from one position to another' so that the operator can, by turning the feed dog, feed the work vin any one of four directions at right angles to each other. With such an arrangement'he would have turned the feed dog four'times order to sew a box bar onto apiece of work.

The principal objects of this invention are to provide a sewing machine which is semi-automatic in its operation in that it will sew lines of stitches in work placed in the machine with one or -more changes of direction therein without manual adjustment ofy the machine for each 'change'of direction, and without shifting the position of the work on the machine, which canbe 'used for both at work and partially closed work, 'such as shoes, sleeve-like articles, etc., which -is rapid and accurate in operation, may be adjusted to take right and left-hand work, and which anchorsthe thread both at the beginning and end of the stitching operation. Other objects are to provide a machine which has particular utility 'in sewing box bars in shoe manufacture, which 'is -comparatively simple in design, of durable construction, and will eliminate vthe need for As herein illustrated, the `machine hasta verti- 19 Claims. (Cl. 112-2) cally' reciprocal needle bar and needle, the latter being supplied with thread in the usual manner from a spool and entering at the lower end of its movement a bobbin chamber where it encounters and picks up thread from a bobbin.Y In

lieu of the customary presser foot and feed dog,

there is a novel presser foot and feed. plate mounted respectively on the Yhead andbed of the machine for relative movement to engagenthe work placed therebetween. The presser-,foot and feedplate arev mountedformovement in direcfv jp tions at right angles to the path of movement of the needle and in a plane perpendicular thereto, and there is means for effecting movement thereof with the work gripped between them in a predetermined path to cause the needle to sew a predetermined line of stitches. Preferably the motion of the presser foot and feed plate is rectangular, so as to provide a rectangular closed figure. However, the path of movement may readily be varied to produce angular or circular movement. In addition to their motion rectilinearly, the presser foot and feed plate may be turned about an axis coinciding with that'of the needle so as to shift them to one side or the other of the bed without disturbing their rectilinear movement with reference to the needle, and hence to'accommodate partially closed articles such as placed fiat upon the bed but must be drawn over the end of the bed, for example with a portion alongside the bed. Such adjustment provides for right and left-hand work, for example right and left shoes, and for right and left sides of the same shoe.

The machine has still other advantageous features of construction, to wit, means for adjust- -ing the feed so that dead stitches are inserted in the Work at the beginning and ending of any given sewing operation to anchor the thread, vmeansv for adjusting the number of the stitches and the Vlength of path of movement of the work with reference to the needle, and hence the size of the stitch pattern, and a non-jamming stop motion.

The invention will now be described in greater detail with reference to the accompanying drawings, wherein: V

` '1 is a side relevation of Vthe machine;

` F1g.`2V is a front elevation with the supporting frame omitted; n Fig. 3v is a top view looking down on the head of the machine showing a part of the frame arm; y Fig. 4 is a plan View taken in a horizontal plane on the line 4-4 of Fig. 2;

Fig. 5 is a plan View taken in a horizontal plane on menne 5 5 of Fig. 2; n Fig. 6 isa vertical section taken on the line 6 6 of Fig. 4;

Fig. 7 is a frontrelevation to larger scale of the feed plate; l v l A Y Y Fig.V 8 is a perspective view of a moccasin mounted on the horn in a position to be operated Fig. 9 is a fragmentary.side elevation at the forepart. of; agmoccasin` showing box bar stitching chine showing the details of the non-jamming stop motion.

The sewing of a box bar, that is a continuous line of stitching of rectangular configuration, is especially bothersome when the work operated upon must be placed at an angle to the horn and is impossible with work which must be placed over the horn of the sewing machine unless the machine is `ttecl with a feed dog that can be turned through 360 of rotation to permit feeding the work first in one direction and then in another. Even this is not sufficient, because the operator has to stop the machine at each change of direction, turn the feed dog and then start the machine again. The machine of this invention is especially designed to stitch box bars of equivalent figures on the apron portions of completely lasted moccasins such as shown in Fig. 1l where the moccasin M must be placed over the horn of the machine with its back part alongside the horn in order to bring the apron a to be stitched beneath the needle. In Fig. 8, a box bar b is shown completely stitched, and in dotted lines the moccasin is shown shifted to the other side of the horn for stitching the opposite apron. As will appear hereinafter, the feed plate and presser foot between which the part of the moccasin which is to be stitched is held, may be shifted angularly about the axis of the needle as a center to adapt the machine to operations on either s ide of the horn. While especially fitted for the foregoing kind of work, the machine also has utility for other kinds of work, for example in stitching a box bar in the backstay of a shoe and/or to join theends of a sleeve-like member such as a gauntlet or cuff, and as illustrated in Fig. l0, the stitching may also be applied to nat work.

Referring to the drawings, particularly Fig. 1, the machine has a conventional frame consisting of a base from which rises a vertical post I2 with which are integrally formed a laterally extending bed or horn M and arm I6, these members being parallel and vertically spaced. At the extremity of the arm I6 there is integrally formed ahead I8 within which is mounted a conventional vertically reciprocable needle bar 20, Vthe latter being reciprocated by suitable kinematic mechanism extending from the head rearwardly through the arm I6 to gearing within the post l2. A suitable drive for the gearing is afforded by means of fast and loose pulleys 22 mounted on the post l2.` The foregoing needle bar and mechanism for operating the same are of conventional construction and hence a further description is not necessary herein. Y

lIn place of the customary presser foot and feed dog this machine is provided with a specially constructed presser foot 24 and feed plate 26, which are constructed and arranged to be engaged with the worl; and to be moved rectilinearly with the workgripped therebetween with reference to the needle and in a plane substantially perpendicular to the needle. The feed plate 26 is mounted on the extremity of the horn i4, the latter being modified to some extent for this purpose ,by removing the conventional bobbin holder through the upper side of which access to the bobbin is had, and replacing it with a bobbin holder 28 cpen at its forward end so that the bobbin may be inserted and removed from its holder without having todetach. the feed plate or removev theV presser foot. The feed plate is mounted on the arm as follows.

An anchor plate 30 (Fig. 6)y having a downwardly projecting lip 32 at its forward end and one or more bolt holes 34 near its rear end is mounted above the bobbin holder 28 and on the horn and made fast thereto by engagement of the lip 32 with the open edge of the bobbin holder and bolts placed Vin the bolt holes 34 and screwed into the horn M. The anchor plate 3G has on its upper side a raised cylindrical boss 36 concentric with the needle, centrally of which there is a needle opening 38 also located concentrically with the Vertical axis of the needle bar, so that a needle xed in the needle bar will move vertically through the hole and into the bobbin holder. A throat plate 4G having a. cylindrical recess 42 on its under side is mounted on the anchor plate for rotation in a horizontal plane about the vertical axis passing through the needle bar by engagement of the recess d2 with the cylindrical boss 36 on the anchor plate. The throat plate has a needle passage 114 therein in registry with the opening 38 in the anchor plate, anden the upper side a raised bordering lip 4S. At the forward end of the anchor plate there is an arcuate slot (Fig. 4) 43. A bolt 59 is inserted through the slot upwardly and has its upper end screwed into the under side of the throat plate at 52. A spring washer 5d is placed between the head of the bolt 56 and the under side of the anchor plate. The bolt 56 provides means for fixing the throat plate lo at any given angular position with respect to the horn, for example it may be swung from a position aligned with the bed I4 to an angular position to the right of the bed as shown in Fig. 4 whenY viewing the front of the machine, or to the left thereof. The provision for angular movement of the throat plate permits operating on work which has to be held at one side or the other side of the bed as illustrated in Fig. 8, as distinguished from flat work (Fig. 10) that may be placed between the presser foot and feed plate in the plane of the upper side of the bed.

The throat plate il has on its under side a substantially rectangular shallow recess 5S and on its upper side a substantially rectangular sha1- low recess 56 as shown in Fig. 7. The feed plate 26 is mounted on the throat plate so as to rest on the bottom of the recess 53 and is somewhat narrower than the recess so that it may move longitudinally of the throat plate and laterally thereof, that is, may be moved rectilinearly on the throat plate. The upper side of the feed plate has a number of upstanding prongs or tines 60 which bite into the under side of work placed between the feed plate and the pressure foot to insure a good grip on the work. The feed plate has a rectangular opening 62 therein through which the needle moves when work is to be stitched and the shape of this opening will conferm substantially to the outline of the stitching to be applied to the work. As here shown, the opening isrectangular and the stitching which as heretofore indicated, is to be applied to the work, is in the shape of a closed rectangle and is commonly referred to as stitching a box bar. YThis stitching, while functional in many stitching operations, is also widely used in the manufacture of various'leather articles for its decorative value.

. The feed plate is held fast to thefthroat plate, but at the same time permitted'to movelongitudinally Land laterally thereof by a screw 66 (Figs. 4'and 7) which passes through the throat plate lfrom *the vunder side., its headV being; located in the recess 58, and is screwed into the under side of the feed plate. The screw passes through a rectangular slot 64 in the throat plate and a washer 68 is interposed between the head and the slot so as to overlap the margins of the slot and hence provide a sloppy fit.

' Longitudinal motion is imparted to the feed plate as follows. On the inner end'of the feed plate (Figs. i, 4, and 7) there is mounted a bracket 16 having spaced downwardly projecting ears 12 (Fig. '1) embracing the parallel edges of the feed plate. A recess is formed in the top side of the bracket in which there is placed a flat spring 14 and a screw 16 is passed through the spring and bracket into the feed plate. Y The spring yieldably holds the bracket straddling the feed plate, however, by lifting on the bracket so as to clear the lips 12, the bracket may be swung from the position shown in Fig. '1 in full lines through 180 in the direction of the arrow shown in Fig. 4 to the dotted line position shown in Fig. 7. The bracket 18 has an upright ange 18 thereon to which there is fastened an elbow 80. A post 8| is xed in the elbow 88 and a block 82 is fastened to the top of the post 8|. The block 82 extends inwardly over the feed plate and has a vertical pass-age 84 therethrough from top to bottom which is perpendicular to the feed plate and parallel to the center line of the needle. An arm 86 is situated below the lower side of the block 82 and has fixed to it a post 83 which extends upwardly through the passage 8,4 in the block and provides a fixed center about which the block 82 may be swung. The block has a boss 90 on its upper side and an opening 02 which enters the passage 84 and through the boss and opening 92 there is placed a screw 84 having a knurled head 66 by which it may be turned to bind the block to the post 83. |Thus at either extreme position shown in Fig. 7, the block 62 may be locked or fixed substantially at right angles to the feed plate. The arm 86 has extending at right angles thereto an arm 88 (Fig. 4) the free end of which is fixed to a pin 98, the latter being mounted in a sleeve |80 and secured therein by a pair of collars |02 at opposite ends thereof. The sleeve |00 has -a laterally and upwardly extending leg |04 which is fastened to a vertically disposed leg |06 extending downwardly from a C-shaped arm |08 (Figs. 2 and 5);

. The upper end of the arm |08 has a split clamp formed vintegral therewith and is clamped to the outer end of a horizontal shaft H0, which extends .transversely of the head I8 (Fig. 2) through a block H2, the latter being mounted between spaced upwardly projecting ears ||4 (Fig. 1) on a pair of `pivot pins 6 arranged parallel to the center line of the bed so that the shaft I0 is free to rock in a vertical plane about the axes of the pins 6. The ears I4 are formed on a vertical post not shown journaled in a vertical opening in the top of the head I8 Yso that theblock ||2 and hence theshaft I l0 are free to turn about Ia vertical axis coincidentwith the axis of the needle. The shaft ||0 is also free to turn about its longitudinal axis in the block On the inside of the C-'shaped arm |08 (Fig. 2) there is a boss |28V through which there is an opening, and in Jthe lower inwardly projectingV portion of the arm there is an opening |22. Through the openings in the boss 'and the inwardly projecting portion there is disposed 4a rod |24. Nearthe lower endbf'the rod there is fastened -afC-shaped bracket |26 with one foot above the inwardly projecting portion andthe other below it. The upper foot is fastened to the rod |24. A collar |28 is also xed to the rod above the upper foot and to this collar there is attached the last link of a chain |30 which extends upwardly therefrom and is fastened at |32 to one end of a lever |35 pivoted at |34 to an ear |36 fixed to the C-shaped arm. The outer end of the arm |35 may have fastened to it a chain or other convenient link |38 by which the lever may be tilted to raise the rod |24. A spring |40 placed on the rod with its ends situated between the boss |20 and the collar |28 serves normally yieldably to hold the rod in a depressed position.. The lower foot of the C-shaped bracket |26 has fixed to it a horizontally disposed shaft |42 on the inner end of which ispivotally mounted a yoke |44 (Fig. 1) having downwardly and outwardlyinclined arms |46. The yoke extends in a plane parallel to the axis of the horn and has projecting from its inner side transversely of the bed so as to be substantially above the feed plate at the ends of its arms, vertical substantially rectangular hollow ears |46.V Each ear |46 (Fig. 2) has a pair of vertically disposed aligned openings in which are set staffs |48. A pin |58 is ixed in each stair diametrically thereof within the lower portion of the ear |46 so as to support the pin within its openings, and compression springs |52 are placed about each staff so that they are vertically yieldable within the ears |46. The springs normally hold the pins depressed and at their lower ends below the ears |46 they have fast to them bars 24a which together constitute the presser foot 24 and which are movable independently of each other so that if portions of work introduced between the presser foot and the feed plate are not level, they may be pressed independently against the prongs on the feed plate by the independently mounted presser bars. Since the yoke is pivotally mounted on the shaft |42 the bars 24a may also tilt so as to accommodate themselves to work of uneven thickness disposed between them and the feed plate. n

-shaft I 18.

rfoot and feed plate is effected as follows. .2111v (Fig. 1) is mounted loosely on the end of the 7 The shaft 204 has in it a worm 'gear which meshes with a screw having an interrupted thread. The worm imparts an intermittent rotation to the shaft 2G11 and hence to the change gears. The motion transmitted from the change gears to the cam 192 is in turn transmitted fron'l the latter through the aforesaid linkage and serves to rock the arm IilB about the axis of the Since the presser foot is connected to the lower end of the arm IUS and the feed plate is in turn connected to the presser foot, as

.was previously described, they will move longitudinally ofthe throat plate as the arm 168 swings.

Transverse or lateral movement of the presser An arm shaft |10 opposite the arm 198 and extends downwardly along the opposite side of the head I8 vparallel to the arin ist. at its lower end the arm 210 has an inwardly projecting flange 21'2 which is forked so as to extend transversely of the rna chine fore and aft the needle har. A plate 2 i4 is fastened across the open end of the flange 212 in a horizontal position and has a mushroom head ZIE (Fig. in which there is an elongate slot 216 running fore and aft or" the machine at right angles to the axis of the shaft I lil. A roller 213 is mounted on a stud 220 iixed to the arm its of the bracket 154 so as to t within the slot 216 and hence to provide a guide near the lower end of the head I8 which will hold the arms 168 and 21o rigidly against transverse deflection except when movement of the arms in this direction is de sired.

vTo eiect the desired transverse movement of the arms and hence the presser foot and feed plate, the ilange 212 has in its upper surface as shown in Fig. 5, an arcuate slot 222 concentric with the axis of the needle in which there rotatably seated an eccentric 224 fastened to the lower end of a vertically positioned shaft 226. The shaft 226 is journaled in a bearing sleeve 22B (Fig. 2) screwed to the side of the head 18 (Fig. 1)

and has at its upper end a bevel gear 23il which s:

meshes with a sector-shaped gear 232 rotatably mounted on a horizontal stud 235 fixed in the side of the head. The sector gear 232 has an integralhub in the form of a split collar by which it is fastened to the stud 235 and carries a pin 212'! (Fig. 2) to the upper end of which pivotally attached a link 235. The linlr 23s is fastened to a linkilllo by means of screws passing through a slot so that the links 23S and its are adjustable longitudinally. The linl-z 2st is connected to a bar 242 which passes through a slot in the face of a stud 244 on the arin it (Fig. 3) and is slidu ably retained therein by a cover 2&5. On the stud Mthere is a short crank arm M3 connected to one end of a crank rod 25s. The opposite end of the 'crank rod 25e is connected to the upper end of an arm 252 fast to a horizontal shaft 25!! (Fig. 1). Also on the shaft 254 is an arm 255 to which is secured a follower not shown disposed Within a cam groove 25e in the face of the cani I 92. The cam 4track is so shaped.Y that it will actuate the arm 256 and hence the linkage attached thereto twice during each complete cycle of the machine to roei: the sector 232 nist in one direction and then in the other direction and hence to turn the eccentric 272e to shift the arm 210 transverselg1 and simultaneously to shift the arm lil a corresponding amount through. the shaft vHo by rocking the latter about the pivots When a rectangular box bar is to be stitched on flat work the presser foot and feed plate will be located along the center line of the bed or horn i4. However, when such stitching is to be applied to shoes, for example to moccasins, the forepart of which must be placed over the end "of the bed and the back part of which must be held along the side of the bed and hence at an angle thereto (Fig. 8) the presser foot and feed plate must be swung to the right or left of the bed as illustrated in Fig. ll. This is accomplished by turning the post 118 in the head. 1n order that the presser foot and feed plate will maintain the desired position once the post has been turned, latch means is provided at the top of the head I8. As illustrated, a latch plate 2152 is secured by screws to the head It (Fig. l), which has distributed along its horizontal flange a series of spaced latch openings. Above the latch plate (Fig. 2) a latch arm 26e pivotally fastened by a screw 28e and has an upright lever 265 fast to it which may be grasped to raise the latch arm. The opposite end of the latch arm has a pin 210 on its under side arranged to engage any one of the holes in the latch plate and a spring 214 is placed between the upper side of the latch arm and an ear il?. for normally holding the latch arm pressed against the latch plate with the pin 2li] engaged in one of the openings. When it is necessary to shift the position of the presser foot and feed plate, the latch arn 2&5... is raised and the post Elfi is turned to the desired position, whereupon the latch arm is re-engaged 'with the latch plate 262.

In order to alici-d clearance for the work after swinging the presser foot to the desired position, especially for work that extends beyond the end of the feed plate, the bracket le connecting the feed plate to the operating machine must be moved to an out-of-the-way position, that is to the side opposite that at which the work is entered between the presser foot and feed plate. To this end the screw l-'l is retracted so as to free the block on the shaft 83 and the latter is wung through 180 Vto the side opposite the presser foot to Vwhich the work is to he introduced. The bracket must alsoy be raised against the spring washer 'it so as to free it and permit it to turn on Vthe screw is. The throat plate is then swung around its pivot so asV to be vertically below the presser root by loosening the screw siii and pushing it into its proper position, whereupon it is fixed ley tightening the screw.

The cam grooves in the Cain 192 are so a1'- ranged that the presser foot and feed plate will swing about the horizontal axis of the shaft 11S as a center in opposite directions, and about the pivots i as a center in opposite directions, so that the worl clamped between hem may be moved in al rectangular path relative to the needle which is fixed in its path of movement.

While the movement of the presser foot and feed plate as thus hung, are not strictly in a single horizontal plane, the radii on which they wing are so great in proportion to the are through'which they swing, that for all intents and purposes they move substantially in a single horizontal plane. Moreover, such slight variations as there may be are compensated for by the presser foot bars which, because of their yieldahle nature and pivot mounting, tend to remain level during been lateral and longitudinal movement.

Y' The gear 188 Vwhich meshes with the gear 'on the'. back side of the cam 192 has at one place in its toothed edge a gap 4where the teeth are omitted and this gap isso arranged that the presser foot and feed plate at the beginning of a stitching operation remain stationary at one corner of the rectangular design to be stitched for the space of two stitches, whereupon the arms les and ZID rock about the axis of the pins IIS transversely so as to make the first crossbar of the stitching. At the end of the transverse motion the arms |08 and 2|0 rock about the horizontal axis of the shaft I Ill in a clockwise direction at right angles to their initial movement so that the needle makes the line of stitching along the right-hand side of the rectangle. At the end of the righthand line of stitching the arms |08 and ZID are rocked transversely in the opposite direction to make the crossbar at that end of the rectangle and then the arms |08 and 2in are rocked counterclockwise so as to make the line of stitching closing the rectangle and meeting the first transverse crossbar. At the end of this closing line of stitching, the gap in the gear is again reached before the needle stops so that two stitches are placed in the work after the rectangle is closed, that is when the work has come to rest. The blank stitches at the beginning and end of the stitch formation of the rectangle insure locking the thread so that it will not ravel.

Y A stop motion 27S is mounted on the shaft for connecting the fast element of the fast and loose pulleys 22 to the shaft and is engaged to afford a driving connection between the pulley and the shaft by an arm to whichthere is fastened a treadle rod and treadle. Once the clutch is engaged, the machine will perform a complete cycleof operation and will then come to a stop by engagement of the stop motion, a stop pin fast to the back side of the gear |98 being provided for this purpose. To prevent jamming, the stop motion is hung on the shaft so that it will swing in a counter-clockwise direction against the opposition of a spring 215 which normally holds it in a position to be engaged by said stop pin (Fig. 1l).

In using the machine, the work which is to be stitched and/or to which a designis to be stitched, in this case a rectangular bar of stitching, is placed on the feed plate 26 belowthe presser foot 24 which has been raised by pulling on the treadle link |38 and then the treadle is released to allowl the presser foot to engage the upper side of the work and press it against the prongs 50 of the feed plate. The stop motion 216 is now released and the work will be moved through a rectangular path in a horizontal plane below the needle so as to stitch the box bar. and left-hand Work is being stitched, all of the right-hand work may be done before the presser foot and feed plate are shifted for the left-hand work. Itis obvious that with the aforesaid construction the stitching can be performed with a minimum of shifting or turning of the operating parts and that the operator does not have to hold the work during the stitching operation.

This apparatus was especially designed to stitch the box bar in the apron of a moccasin and affords the only known way of applying the stitching without having to shift the feed dog four times during the course of the operation. To stitch moccasins on this machine, the toe of a moccasin is slipped over the free end of the bed until the apron is located between the presser foot and feed plate, whereupon the presser foot is allowed to descend into engagement with the work. Since the back part of the moccasin can- If right Y not be slipped over the bed, it must be held at an angle thereto so as to lie along one side thereof, and hence the whole moccasin is at an angle to the presser foot and feed plate. To correct this so that the stitching will not be applied at a corresponding angle, the latter are shifted so as to take up an angle corresponding to that of the moccasin. Hence, when the stitching is applied it will be parallel to the top of the moccasin opening. To perform a similar operation on the opposite side of the moccasin, the latter is placed over the free end of the bed at the oppcsite side and the presser foot and feed foot are shifted to that side of the machine. In practice, the stitching at one side of all the moccasins would be done at one time and then the presser foot and feed plate would be shifted over to the opposite side and the stitching on the opposite side of all of the moccasins would be performed. For flat Work it would not be necessary to shift the positionof the presser foot and feed plate. While the motion of the feed plate and presser foot is illustrated herein as rectangular, it is obvious that it may be varied so as to make' a stitch' pattern of dilerent'geometric shape.

I vshould be understood that the present dis closure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the appended claims.

I claim: 1. In a sewing machine, a thread carrying needle reciprocable in a predetermined path, a

parting linear reciprocation to the feed plate andI presser foot in a predetermined direction in said plane for a predetermined distance, means for shifting the feed plate and the presser foot bodily at each end of said linear movement in said plane at right angles to its linear movement andin opposite directionsl at oppositeends of the path of movement to cause the work held thereby to describe'a rectangular path in said plane with reference to the needle, and means for shifting the angular position of the feed plate and presser foot about the axis of the needle as a center tol change the angular position of the feed plate with respect to theaxis of thehorn.

2. In a sewing machine, a thread carrying needle reciprocable in a predetermined path, a horn having an end .located opposite the extremity of the path of movement of the needle, a throat plate mounted on the horn for swinging movement in a substantially horizontal plane about a xed point, a feed plate slidable on the throat plate in directions at right angles to the axis of the needle, a presser foot situated above the feed plate and movable intoand out of clamping engagement therewith to clamp work placed therebetween, means for lifting the presser foot out of engagement with the feed plate for placing the work on the feed plate, a spring for holding the `presser foot engaged with the work, means for imparting linear reciprocation to' the feed plate and presser foot on the throat plate in a predetermined direction and for predetermined distance, means for shifting the presser foot and feed plate in a direction right angles to the linear movement at each end of its path of movement but in opposite directions at opposite ends thereof, to cause the work to describe a rectangular path with reference to the needle, means for turning the presser foot and feed plate about an axis coincident with the axis of the needle to change the initial angular position of the feed plate with reference to the needle, and means for shifting the throat plate on the horn to an angular position corresponding to that of the feedplate.

3. In a sewing machine, a thread carrying needle reciprocable in a predetermined path, a horn, a feed plate mounted on the horn for movement in a plane perpendicular to the direction of movement of the needle, a head vertically spaced above the horn and substantially parallel thereto, said needle being mounted on the head, a support mounted on the head for turning movement about the axis of the needle as a center, a bearing mounted on the support in a horizontal position for tilting movement about a horizontal axis, a shaft mounted in the bearing for rotation about its longitudinal axis at right angles tothe axis of tilt of the bearing, arms at opposite ends of the shaft extending downwardly from the shaft toward the horn, a presser foot mounted near the lower end of one arm for vertical movement thereon with reference to the horn means yieldably holding the presser foot in engagement with the feed plate, means connecting the feed plate to the arm, operably connected to the arm for swinging it about the longitudinal axis of the shaft to impart substantially longitudinal reciprocation to the feed plate and presser foot, a cam at the lower end of the other arm operable to effect rocking movement of said arm and hence the bearing, to tilt the shaft about the axis of tilt of the bearing and hence to shift the presser foot and feed plate transversely of the path of longitudinal reciprocation of the feed plate in opposite directions at the opposite end of its movement, and means for turning the support angularly about the axis of the needle as a center'to change its angular position with respect to the horn.

4. In a sewing machine, a frame having a head and subjacent horn, a'ne'edle bar and needle mounted on the head for reciprocation to and from the horn, a feed plate on the horn movable in directions at right angles to the path of movement of the needle, a presser foot pivotally mounted on the head above the horn for movement about horizontal axes at right angles to each other and about the axis of the needle as a center, means for yieldably holding the presser foot against the feed plate, means for effecting movement of the presser foot about said axes to describe a substantially rectangular path relative to the needle, means connecting the feed plate to the presser foot to effect a corresponding movement of the feed plate, and means for adjusting the angular position of the presser foot and feed plate with reference to the axis of the needle.

5. In a sewing machine, a frame having a head and a subjacent horn, a needle bar and needle mounted on the head for reciprocation to and from the horn, mea-ns for effecting reciprocation of the needle bar, a feed plate on the horn below the needle movable in directions at right angles to the needle and angularly about the axis of the needle as a center, a presser foot situated above the feed plate, a support for the presser foot, means on the support vieldabh7 pressing the presser foot into engagement with the feed plate, means suspending thesupport on the head-for movement about horizontal axes at right angles to each other, and about the vertical axis of the needle, means for effecting movement of the support about one horizontal axis and then another in succession to describe a rectangular path, inea-ns connecting the feed plate to the support to effect a corresponding rectangular movement of the feed plate, and means for turning the support about the axis of the needle to shift the feed plate and presser foot to any desired angular position with reference to the needle.

6. In a sewing machine, a frame having a head and subjacent horn, a needle bar and a needle mounted on the head for reciprocation to and from the horn, means for effecting reciprocation of the needle bar, a feed plate on the horn below the needle movable in directions at right angles to the needle and angularly about the axis of the needle as a center, a bearing mounted on the head above the needle for rotation about the axis of the needle perpendicular to the plane of the feed plate, a shaft mounted on the bearing for rotation about its longitudinal axis, and tilting movement about an axis at right angles to its longitudinal axis, a support fast at one end to said shaft, a presser foot mounted on the lower end of the support above the feed plate for movement on the support from an elevated position to a depressed position in Contact with the feed plate, means vieldably holding thepresser foot against the feed plate when lowered into engagement therewith, means connected to the support for effecting swinging movement thereof about the longitudinal of the shaft, means for effecting tilting movement of the support about its axis at right angles to the longitudinal axis of the shaft, means connecting the feed plate to the support to impart movement to the feed plate corresponding to that of the presser foot, said bearing being rotatable on the head to change the angle of posil tion of the feed plate and presser foot with respect to the axis of the needle, and means for xing the angular position of the bearing.

f7. En a sewing machine,Y a frame having a head and a subjacent horn, a needle bar and a needle mounted on the head for reciprocation to and from the horn, moans for effecting reciprocation of the needle bar, a feed plate on the horn below the needle movable in directions at right angles tothe needle and angularly about the axis of the needle as a center, a post mounted on the head for rotation about an axis coincident with the axis of the needle, a yoke integral with the upper end of the post between the arms of which is mounted ablock for tilting about a horizontal axis at right angles to the axis of rotation of the post, said block having a hole therethrough at right angles to the axis about which it tilts, a shaft mounted in the block hole for rotation about its longitudinal axis, an arm mounted at each end of the shaft and extending downwardly at opposite sides of the head toward the horn, one of said arms being fixed to said shaft,` a presser foot mounted on said arm movable from an elevated position thereon to a depressed position in contactl with the feed plate, means for yieldably holding the presser foot in its depressed position, means connected to said arm for effecting swinging movement thereof about the longitudinal axis of the shaft, means connecting the feed plate to said arm for eiecting a corresponding movement thereof, said other arm being loose on the shaft, an eccentric mounted on the head in operable engagement with the lower end of said other arm, and means for effecting operation of the eccentric to shift-the'lower end of said other arm transversely and hence to tilt the shaft about the axis of the block. Y

8. In a sewing machine, a frame having a head and a subjacent horn, a needle bar and needle mounted on the head for reciprocation to and from the horn, means for elfecting reciprocation of the needle bar, a feed plate on the horn beneath the needle movable in directions at right angles to the needle and angularly about the axis of the needle as a center, a post mounted on the head for rotation about an axis coincident with the axis of the needle, a yoke at the upper end of the post between the arms of which is mounted a block for tilting about a horizontal axis at right angles to the axis of rotation of the post, said block having a hole therethrough at right angles to the axis about which the block tilts, a shaft mounted in the block hole for rotation about its longitudinal axis, an arm at each end of the shaft, said arms extending downwardly at opposite sides of the head toward the horn, one of said arms being fixed, a presser foot mounted at the lower end of said one arm and movable thereon from an elevated position to a depressed position for engagement with the feed :1

plate, said other arm being loose on the shaft, a flange at the lower end of said other arm have ing a forked portion extending beneath the head at opposite sides of the needle, a groove in said flange, an eccentric seated in said groove and xed to a shaft, Said shaft being journaled in a bearing i'ixed to the head, said shaft being rotat able to turn the eccentric and hence to shift said other arm laterally about the axis of the block as a center, a guide plate having a guide slot therein mounted on said other arm, a guide roller Xed to said one arm in a position to occupy the guide slot, and hence to guide the arms, said guide slot being straight and at right angles to the axis of `said shaft, and said eccentric groove being arcuate and concentric with the axis of the needle, means for effecting movement of said one arm about the axisv of the shaft and means for effecting rotation of the eccentric to tilt said other arm about the axis of the block.

9. In a sewing machine, a frame having head and subjacent horn, a needle bar and needle mounted .on thehead for reciprocation to and from the horn, means for effecting'reciprocation of the needle, a presser foot and feed plate mounted respectively on the head and horn for move'-r ment in directions at right angles to the needle k in a plane substantially perpendicular to the axis of the needle, said presser foot being secured to a' presser foot bar suspended on the head for swinging movement about horizontal axes sub-V stantially at right angles to each othenmeansL plate movable at rightl angles to the path of movement of the needle in a plane perpendicular thereto, meansrfor effecting movement of said members in unison, said presser foot comprising 14 a presser foot bar movable from an elevated position to a depressed position, means yieldably holding the presser foot bar depressed, and a foot mounted at the lower end of the bar for tilting movement about a horizontal axis at right angles to the bar and extending transversely of the feed plate, said foot consisting of independently mounted, vertically yieldable treads extending lengthwise of the feed plate and side by side. l1. In a sewing machine, a needle reciprocable in a predetermined path, a presser foot and feed plate movable at right angles to the path of movement of the needle and in a plane substantially perpendicular thereto, means supportingr the presser foot above the feed plate for angular rotation about the axis of the needle as a center, means connecting the feed plate to the support for corresponding angular movement, and a latch associated with the support to latch it in a predetermined angularposition. 1 l2. In a sewing machine, a frame having a head and subjacent horn, a needle bar and needle mounted on the head for reciprocation to andv from the horn, means for eifecting reciprocation of the needle, a presser foot and feed plate mounted respectively on thehead and horn for movement in directions at right angles to the needle in a plane substantially perpendicular thereto, and means for securing the feed plate to the horn consisting of an anchor plate fast to the horn, a throat plate overlying the anchor plate and pivotally fastened thereto for swinging movement in a plane perpendicular to the needle and about the axis thereof as a center, said feed plate resting on the throat plate and means anchoring the feed plate to the throat plate for sliding movement on its upper surface.

13. In a sewing machine, a frame having a head and subjacent horn, a needle bar and needle mounted yonthe head for reciprocation to and from the horn, means for eiecting reciprocation in the needle, a presser foot and feed plate mounted respectively on kthe head and the horn for.

movement in directions at right angles to the needle in a plane perpendicular thereto, and means for securing the feed plate to the horn consisting of an anchor plate fast to the horn,-

said feed plate resting on the anchor plate, and

a screw extending upwardly through the slot into the throat plate and being screwed into theunderside Lof the feed plate, said screw having a shank of lesser thickness than the width of theslot and a head wide enough to overlap themar- ,Y gins of the slot.

14. In a sewing machine, a fra-me having -a head and subjacent horn, a needle and needle bar mounted on the head for reciprocation to and' from the horn, means for effecting reciprocation in the needle, a presser foot and feed plate mounted respectively on the head and the horn for movement in directions at right angles to theI needle in a plane perpendicular thereto, and means for securing the feed plate to the horn consisting of an anchor plate fast to the horn,"

a circular boss on the upper side of the anchor plate concentric with the axis of the needle, sai-d.

bossfh'aving a vertical hole therethrough through which the needle may pass, a throat plate mounted 0n the anchor plate, said throat plate having ac lrcularrecessin itsunderside rotatably eli-- tening Athe feed plate in .surface to surface contact with the throat plate while permitting lateral and longitudinal movement thereof.'

15. In a sewing machine, a frame having a head and subjacent horn, a needle bar and needle mounted on the head for reciprocation to and from the horn, means for effecting reciprocation in the needle, a presser foot and feed plate'mounted respectively on the head and the horn for movement in directions at right angles to the needle in a plane perpendicular thereto,

and means for securing the feed plate to the horn consisting of an'anchor plate fast to the horn, a. throat plate overlying the anchor plate and pivotally fastened thereto for turning in a pla'ne perpendicular to the needle and about the Aaxis thereof as a center, said throat plate havin'ga slot longitudinally thereof, a stem fixed to the underside of the feed plate, extending downwardly through the slot and having a head at its lower end underlying the marginal edges of the slot in the'throat plate, said slot being wider than .the stem so that the feed plate while anchored vsurface to surface with the throat plate is free to slide on its surface. 16. In a sewing machine, a frame having a head and subjacent horn, a needle bar and needle mounted on the head for reciprocation` to and from the horn, means for eifecting reciprocation in the needle,l a presser foot and ffeed plate mounted respectively on the head and the hornfor movement in directions at right angles to the needle in a plane perpendicular thereto, and means for securing the feed plate to the horn consisting of an anchor plate fast to the horn, a circular boss on the anchor plate concentric with the axis of the-needle, said boss having a vertical hole therethrough through whichthe needle may pass, a throat plate mounted onfthe anchor plate, said throat plate having a circular recess on its underside rotatably engaged with the circular boss so that rotation of the'throat plate'on the anchor plate is about the axis of the needle as a center, said throat plate having a needle hole registering with the needle hole in the anchor plate, having an elevated lip bounding the needle hole and having shallow recesses on its upper and under sides parallel each other with a connecting slot running longitudinally thereof, said feed plate being mounted in the upper recess and having a stem extending downwardly from its underside through the slot into the lower recess and said stem having a head thereon wide enough to span the slot and retain the feed plate in surface to surface engagement with the throat plate while permitting lateral and longitudinal movement thereof, and a bracket at one end of the feed plate pivotally fastened thereto for adjustment through 180 from one side of the feed plate to the opposite side thereof, said bracket constituting an operable connection for effecting movement of the feed plate.-

17. In a sewing machine, a frame having a head and subjacent horn, a needle bar -and needle mounted on the head for reciprocation-` to and from the horn, means for effecting reciprocation in the needle, a presser foot and feed plate mounted respectively on the head and hornfor movement in directions at right angles to the needle in a plane perpendicular thereto, and means securing the feed plate to the horn consisting of an anchor plate fast; to the horn, a

throat plate overlying the anchor plate, means pivotally connecting the throat plate to the anchor plate for swinging movement of the anchor plate about the axis of the needle as a center, said anchor plate having an arcuate slot therein concentric with the axis of rotation of the throat plate, a screw extending upwardly through the slot in the anchor plate and screwed into the underside of the throat plate for xing the throat plate at a predetermined angular position with reference to the needle, said feed plate being.

mounted on the upper surface of the throat plate and having. a longitudinal slot therein of substantially rectangular shape and along the marginal edge of the slot a plurality of spaced upstanding spurs and means securing the throat plate in surface to surface contact with the throat plate vwhile permitting longitudinal and lateral movement thereof in the plane of the throat plate- 18. In a sewing machine, a frame having a head and Vsubjacent horn, a needle bar andV needle mounted on the head for reciprocation to and from the horn, means for effecting reciprocaton of the needle,V a presser foot and feed plate mounted respectively on the head and horn for movement in directions at right angles to the needle in a planesubstantially perpendicular to the axis of the needle, said presser foot beingsecured to a presser foot bar suspended on the head for swinging movement about horizontal axes substantially at right angles to each other, and means securing the presser foot to the lower end of the presser foot bar for rocking about an axis .parallelto one of said horizontal axes.

19. In 'a 4sewing machine, a frame having a head and subjacent horn, a needle bar and needle mounted .on the head for reciprocation to and from the horn, means for effecting reciprocation of the needlexbar, a presser foot and feed plate mounted respectively on the head and horn for movement in directions at right angles to the needle in a plane substantially perpendicular toV the axis of the needle, said presser foot being- Secured to a presser foot bar suspended onthe head for swinging movement about horizontalv References Cited in the filev of this patent UNITED STATES PATENTS Number Name Date '1,569,902 Vollman Jan. 19, 1926 2,410,399 Wood Oct. 29, 1946 2,525,916 Lahner Oct. 17, 1950