US331106A - arnold - Google Patents

Description

(No Model.) 11 Sheets-Sheet 1.

S. ARNOLD.

SEWING MACHINE.

No. 331,106. Patented Nov. 24, 1885.

WITNESSES 11 Sheets-Sheet 2.

S. ARNOLD.

SEWING MACHINE.

(No Model.)

Patented Nov. 24', 1885.

KWITJVESSE A .jf/oa torney (No Model.) 11 Sheets-Sheet 3.

s. ARNOLD.

SEWING MACHINE.

No. 331,106. Patented Nov. Z4, 1885.

WITNESSES I IJY'VE-NTR o l fjyQZlrZee c/TvLoZcZ,

(No Model.) 11 Sheets-Sheet 4.

S. ARNOLD.

SEWING MACHINE.

No. 331,106. Patented Nov. 24, 1885.

WJTJVESSES IN VENTUR ,gym /jlatrze e Z OZ) ttorney N. PETERS. Phmmmhngrannnr. washington. 11C,

11 Sheets-Sheet 6.

S. ARNOLD.

SEWING 1111101111113.l

(No Model.)

No.. 331,106. Patented Nov. 24,1885.v

I' Il .dttorney Limagnphnr, washingwn. D. z:4

WITNESSES @36,

(No Model.) 11 Sheets-Sheet 7.

S. ARNOLD.

SEWING MACHINE. No. 331,106. Patented Nov. 24, 1885.

N. persas. mmnmgmphe. washing@ ne (No Model.) 4 l1 Sheets-Sheet 8. S. ARNOLD.

SEWING MACHINE.

Patented Nov; 24, 1885.v

INVENTOR SVG/te r Zee c/ff/o Z 074 y n torney Ami WITNESSES ,7/ Afr' 0C' (No Model.) 11 Sheets-Sheet 9.

SEWING MAGHINE.

No. 331,106. Patented Nov. 24, 18815.

WITNESSES N ruins. PhwLnhgmpher. washingwn. ac

(No Model.)

S. ARNOLD.

SEWING MACHINE.

am R r ma@ Nu En V www 1 6 S.

N. PETERS. Phnea-Lilhogmpher, washingmn, D. C.

11 Sheets-Sheet 1l.

(No Model.)

S. ARNOLD.

SEWING MACHINE.

No. 331,106. Patented Nov. 24, 1885.

ll'rrn rares Parninr trice..

SATTERLEE ARNOLD, OF BROOKLYN, NEW YORK, ASSIGNOR TO ANNA M. ARNOLD, OF SAME PLACE.

SEWING-MACHINE.,

SPECIFICATION forming part of Letters Patent No. 331,106, dated November 241, 1885.

Serial No. 131,487. (No model.)

To all whom, it may con/cern:

Be it known that I, SATTERLEE ARNOLD, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to that class of sewingro machines in which the needle-bar and needle have lateral movements at right angles, or nearly so, to the line in which the work is moved or fed, the needle thus descending at different times in diiferent vertical planes for the purpose of forming irregular, ornamental, or zigzag stitches, or, in other words, stitches crossing the line of movement of the fabric being sewed.

In the present embodiment of my invention 2o the needle is caused to make three stitches in one lateral direction and then three stitches in the opposite lateral direction, the specialobject of my invention in this instance being the production of a machine for uniting the abutted edges of knit or other fabrics by a smooth and substantial seam, thus producing a garment withouta ridge or welt at the line of union of the pieces of fabric of which it shall be composed, the stitches crossing and recrossing said 3o line of union, and being connected to the body of the fabric at either side thereof.

Instead of causing the needle to make three stitches in one lat-eral direction and then three stitches in the opposite direction, as above referred to, the mechanism for moving the needle laterally may be so constructed as to impart alternate right and left movements to the needle to form zigzag stitches, which will be desirable with much of the work for which 4o my machine is specially intended.

A As my machine in the form shown in the accompanying drawings is more especially designed for sewing tubular goods-such as stockings, Ste-the work-plate is made in the form of an arm or horn adapted to enter such tubular articles as they are being sewed. It

is, however, obvious that for other classes of work a flat work-plate of the ordinary construction may be employed, when desirable,

5o with the stitch-forming mechanism, which I will hereinafter describe.

In the annexed drawings, forming a part of. this specification, Figure 1 is a perspective View of my improved sewing-machine. Figs. 2 and 3 are side views of the same. Fig. 4 is a plan or top view. Fig. 5 is a plan view, partly in section, on the line x x, Fig. 2, showing the loopenrod and its connections. Fig. 6 is a detail view in perspective of the looping-hook and a portion of thelooper-rod. Fig. 7 is an under side view of the cloth-plate. Figs. 8 and 9 are views of the shuttle, the latter being a section on line z z of the former. Fig. 1() is a view of the gearing, partly in section. Fig. 11 is a perspective view of the means for actuating the needle-bar frame. Fig. 12 is a perspective view of the front portion of the machine. Figs. 13, 14, and 15 are detail views of the feeding mechanism. Fig. 16 is a perspective view of the presser-foot. Fig. 17 is a perspective view of the needle-bar, and Fig. 17 a cross-section of the same. Fig. 1S is a skeleton View of the needle and looper mechanisms. Fig. 19 is a perspective view ofthe needle-bar frame. Fig. 2() is a top end view of the same. Fig. 2l is a side view showing the relative positions of the needle, shnttle, and loopinghook at the moment the latter throws the thread-loop over the pointed end of the shuttle; and Fig. 22 is a similar View with the take -up added, showing the hook about to disengage itself from the loop.

A indicates the bed or work plate of the machine, which in the present instance is made narrow and somewhat tapering toward its forward end to form an arm or horn. The rear portion of the bed-plate is shown as being provided with a perforated liange, A, and the machine can thus be secured to the worktable by suitable screws passing through said iange. The arm or horn A is hollow or recessed for the reception of the stitch-forming mechanism co-operating with the needle, and is covered by a plate, preferably made in sections 1 and 2, the section 2, which may be termed the cloth-plate, being cutaway for the reception of a removable plate or shuttlecover, 3, and a throat or needle plate, P. The removable plate 3 can be taken ont when access to the shuttle is necessary, and the throat or needle plate can also be removed when worn, or when it is desired to insert a throat- IOO plate having` a needle-opening of different form.

'Formed integral with orsecured to the rear end of the bed-plate is the goose-neck orv bracketarm B, which is made somewhat longer than usual, the forward end of said bracketarm havingadependingportion orhead,which sustains the frames carrying the needle -bar and the cloth pressing and feeding mechanisms. The bracket-arm B is shown as a plain frame fianged or ribbed for strength, and provided with a plurality of lugs or brackets to afford bearings for the levers and shafts constituting the operating mechanism ofthe machine; but instead of the form shown said bracket-arm may be so constructed as to afford a housing for said operating mechanism, in which case the side of the arm will preferably be provided with a removable covering-plate to afford ready access to the interior of the arm.

Journaled in bearings in the rear portion of the bracket-arm B is a vertically-arranged ldriving-shaft, C, having at its Yupper end al fast pulley, G2, and a loose pulley, C3, onto either of which, by means of a belt-shifter, Ct, a driving-belt connected with power may be run. An eccentric, 4, is secured upon the driving-shaft C, adjacent to the loose pulley C3, said eccentric being surrounded vby a strap formed integral with or secured to apitman, 5, the forward end of which has a ball-andsocket connection with the short arm of a ,primary Jever, E, pivoted on a stud, E2. se-

v nected to a stud, 8,l secured to the needle-barv 9, said needle-bar carrying at its lower end' the usual eye-pointed needle. The link 7 has ball-and-socket connections with the lever F- and stud 8, to form a loose joint between said lever and needle-bar. The needle-bar 9 is adapted to reciprocate vertically in lugs or bearings 10, formed upon orsecured to a frame, H,vwhich latter, by means of vertical pivots connected with lugs .26* 011 the said frame H and the forward end of the `bracket-arm B, (see Figs. 12 and 19,) is adapted to swing horizontally, carrying with it the needle-bar and needle, which will thus be moved laterally for the purpose of forming stitches across the line of the movement of the work.

The mechanism which moves the needle-bar laterally will be described further on.

As my machine is intended to be run at very high rates of speed, -it is essential, that all of thenmovingvv parts should be made as light as possible consistent with proper strength; and to this end the needle-bar (the movements of which consume a considerable part of the pow-l er used in driving the machine) is flattened and grooved-on opposite sides,'said grooves being preferably concave in cross-section, as

shown. By constructing my needle-bar in this manner a considerable portion of the metal is cut away, while, owing to the ribs left at its corners, the strength of the needle-bar is not greatly diminished. The openings in the lugs 10, through which the needle-bar passes, are conformed in shape to a cross-section of the needle-bar, and firm bearings for the latter are thereby secured, while the shape of said bar effectuallyprevents any such axial movement thereof as is liable to occur with cylindrical needle-bars. The lugs 1() are preferably formed in two parts, the outer or removable parts being secured to the inner or fixed parts by screws passing through the former into the latter. Owing to the outward pressure of link 7, the latter will naturally bear the needle-bar outward, and as a result of this tendency the wear of the needlebar will occur mostly against the outer or removable parts of the lugs 10. lWhen sufficient wear has occurred to occasion any looseness, the caps or outer portions of the lugs 10 can be removed, and by properly dressing down the inner faces of said caps the looseness occasioned by wear may be taken up, and thus the proper positions of the main bearings for the needle-bar will be maintained.

It will be apparent that the construction thus described affords large bearing-surfaces for the needle-bar in proportion to the size of the latter, and at the saine time prevents any axial movement or deflection of the needle bar.

On the vertical driving-shaft C is a worm, D, said worm being preferably placed loosely on saidshaft, so that it can slide up and down thereon, and when thus loosely mounted it is caused to rotate therewith by a spline or feather connection. The worm D, when loosely mounted on said shaft, is formed with upper and lower screw-cam surfaces, 38, (see Fig. 2,) engaged by anti-friction rollers 39, mounted on small brackets 40, which latter are rigidly secured to the arm B. The screw-cam surfacesfare conversely arranged, so that they are both in const-ant contact with the rollers 39, and as the shaft C rotates said screw-cam surfaces, working between said rollers, will cause the worm D to reciprocate longitudinally of said Shaft, effecting one back-andforth movement at each revolution of thelatter.

Journaled in a frame, 34, (see Figs. 3 and 11,) rigidly secured to the arm B, is a wormwheel, 33, engaging, through an opening in said arm, with the worm D. Owing to the sliding movement of the worm D on the shaft C, said worm will impart an intermittent rotary movement to said worm wheel, moving the latter to the extent of `one tooth at each If the drivingrevolution of the shaft G. shaft be turned in the direction indicated by IIO the arrowv in Fig. 4, this movement of the l worm-wheel will take place when the worm is rising, the worm-wheel remaining stationaryA while the worm is descending, the threads of the worm, during the descending movement of the latter, traveling idly through the teeth of the worm -wheel. If the pitch of the threads of the worm should be reversed, or the shaft C should be turned in a direction opposite that indicated by the arrow in Fig. 4, the worin-wheel would remain at rest when the worm was rising, and would receive its movement when the worm was descending.

The worm-wheel 33 serves the double purpose of giving rotary movement to the feeding-wheels and imparting lateral movements to the needle-bar frame and needle-bar, the movements of the feeding-wheels and needlebar being (in the form of my invention herein set forth) intermittent,l so that they can occur when the needle is out of the fabric. One face of the wor1n-wheel33 is formed with a series of face cams or corrngations, 32, each of these face-cams, from the center of one depression to the center of the next depression, beingjust equal in extent to six teeth on the worm-wheel. A lever, 31, pivoted near its center to the arm B, is provided at one end with a toe-piece, 41, which bears against the face-cams 32 of the wheel 33, the opposite end of said lever being jointed to a rod or link, 30,'pivoted at its forward end to alug, 27, (see Fig. 19,) on the needle-bar frame H.

To vary the throw of the needlebar frame H, the lever 31 may have several holes, (see Fig. 11,) to permit the rod or link 30 to be attached thereto at different distances from the fulcruxn of the said lever.

The rod or link 30 is preferably madein two pieces, as shown, the two pieces being so connected that the rod may be shortened or lengthened at will to secure a proper adjustment of the parts, thus permitting the needlebar and needle to be adjusted to bring the latter into proper position relative to the needle-plate and feed-wheels. In the present instance the two parts of the rod 30 are connected by a block, which is fixed to one part ofthe rod, and is provided with a socket and set-screw, by means of which the other part of the rod may be adj ustably secured thereto. A block or sleeve tapped with right and left hand screw-threads, with screw-threaded ends on the adjacent parts of the rod, might be used to accomplish the same result. A strong plate-spring, 11, bears against one of the lugs 10 on the needle-bar frame H, said spring having a tendency to move said needle-bar frame in opposition to the movement imparted thereto by the rod 30 and lever 31, and the said spring, by acting through the frame H, rod 30, and lever 31, also serves to keep the toe-piece 41 on said lever in contact with the face-cams 32.

Instead ofvforming face-cams on the wormwheel, a cylinder having `a serpentine camgroove of proper form might be employed, said cam-cylinder being formed integral with or secured to the worm-wheel orits shaft. In such case a pin or roller-stud on the lever 31 would enter said cam-groove, and said lever would be moved positively in both directions, thus obviating the necessity of the spring for securing the return movements. A shaft, 61, (see Fig. 3,) is caused to rotate with the wormwheel 33 by a screw or pin passing through the hub of said wheel and loosely engaging a groove, 63, in said shaft. A feed hanger-frame, M, is loosely attached to the forward end of the bracket-arm B by screws passing through slots 37 in said frame into said bracket-arm. Said frame carries the feeding-wheels 65 and presser-foot 66, and is arranged to be lifted by a cam-lever, 51, engaging a lug or arm thereon, and is yieldingly held upon the work passing beneath the feeding-wheels and presserfoot by a spring, 47, attached to an arm, 45, of said frame,and toaloop or stud, 4S, secured to the lower forward portion of the bracketarm.

By means of the construction just described it is obvious that the feeding-wheels and presser-foot may be held upon thework or raised therefrom, as occasion may require. rlhe shaft 61 has a bearing at its forward end in a projection, 49, of the feed hanger-frame M. 4The forward end of said shaft is provided with a small beveled gear-wheel, 60, meshing with a similar gear-wheel, 59, von the upper end of a vertical shaft, 58, journaled in bearings 56 57 on the frame M. A beveled gear on the lower end of the shaft 58 engages a similar gear, 62, (see Fig. 15,) on a horizontal shaft, 54, arranged withln a block, 52, forming the lower portion of the hanger-frame M.

To the shaft 54 is secured a wide gearwheel, 55, meshing with both of the feedingwheels 65, (see Fig. 14,) which are provided on their periplieries with teeth engaging the gear-wheel 55 and the fabric. The feedingwheels are arranged at acute angles to each other and to the line of movement of the work, and as they converge rearwardly they will have a tendency to press the abutted edges of fabric toward each other, thus insuring their close Contact. The feeding wheels 65 are separately journaled in arms 64, adjustably secured to the block 52 on the frame M vby screws 36, passing through slots 35 into the said block. By means of this slotted connection with the block 52 the arms 64, and with them the feedingwheels 65, may be arranged nearer to or farther from each other, and by slightly swinging said arms 64 on the screws 36 as pivots the angles of the inclination of the feeding-wheels may be adjusted to meet the requirements of the work being performed, and as these arms are adj ustable independently of each other either one or both of said feeding-wheels may be adjusted at the pleasure of the operator. Of course when the arms 64 are to be adjusted the screws 36 will be vloosened slightly, and they will be tightened again to properly secure said arms after the adjustment has been made.

It has been found that the ordinary fourmotion feed does not always work satisfactorily with knitted goods, as they are thin and so elastic that they will sometimes stretch when engaged by the feed, and will thus faill to be properly moved to form the stitches, and to avoid this difficulty the wheel feed, which always has a positive hold upon the goods, has been found advantageous. This kind of feed is particularly desirable in a'machine in which the needle has a lateral movement, requiring a slotted throat-plate, as thc continuous positive engagement of the feed-wheels with the fabric obviates the tendency of the latter to crowd into the slot in the throat-plate, the fabric being kept under a constant'tension at the sewing-point.v

I am aware that it is not new to arrange a feeding-wheel above the work-plate. I am also aware that two feeding-wheels arranged on opposite sides of the needle have been heretofore employed; but in such instance said feeding-wheels were below the work-plate, and wereV so placed that their axes were opposite to the sewing-point, or the line in which the needle reciprocated. In my machine the feeding-wheels are j ournaled slightly in advance ofthe needle, so that they push rather than pull the goods forward, and this pushing avoids stretching the fabric, and assists in causing the abutted edges to be closely pressed together at the sewing-pointwhere they are to be united by thestitch-forrning mechanism. As the feeding-wheels are turned slightly outward,this arrangement somewhat in front of the needle or sewing-point is not apparent in those figuresof the drawings in which said wheels are viewed from their outer sides. This feature is, however, shown in Fig.4 14, which is somewhat exaggerated to make this point clear. The presser-foot 66 is secured to the block 52 by a screw, 38, said screw passing through a slot, 39, in the vertical, arm of said presser-foot to provide for vertical adjustment. On its under side the presser-foot is formed with two grooves, 67, (see Fig. 16,) converging toward eachother as they approach the needle-slot 40, where theyend. This construction of the presser-foot assists in guiding and bringing together the abutted edges of the fabric.

To the lower endof the vertical drivingshaft C is secured a crank-disk, 68, (see Figs. 2 and 3,) carry-ing a crank-pin connected by a link, 69,y with a similar crank-pin Yon an arm, 70, on the upper end of a secondary vertical shaft, 7l, which shaft is journaled to the arm B in a different vertical plane from that ofthe driving-shaft C, so that the axes of the two shafts-are out of line. By this arrangement and connection of these two shafts a differen- 3 tial rotary movement will be imparted to the -of its revolution than it will during the other portion. The shaft 71 is provided on its lower end with a crank, 72, (see Figs. 5

and 18,)to which is secured a looper rod or lever, 73, sliding through and turning in a swiveled bearing, 74, and having at its front a looping-hook, 75. The looper-rod 73 is preferably formed in two pieces adjustably secured together, so that said rod may be lengthened or shortened, as may be necessary, to bring the looper in proper position relative to the needle and shuttle. The swiveled bearing 74 is located considerably forward ofthe center of the looper-rod, so that the looper on the front end of said rod will be caused to travel in an elliptical path, which is somewhat more flattened at one end than at the other, as indicated in Fig. 5. The shuttle 76 (see Figs. 8 and 9) is stationary, and is loosely supported in a holder, 77, (see Fig. 7,) arranged in the interior of the forward end of the arm or horn A, on which the work is supported. Said shuttle is provided with a bobbin, 78, of ordinary construction,for carrying the locking-thread, and with a tension` bar, 79, around which said thread is wound a sufficient numberof times to insure the proper degree of tension.

The take-up consists of a bellcrank lever, I, (see Figs. 1 and 2,) pivoted on the stud F", which serves as a fulcruin for the lever F. VThe long arm of the lever E is provided at its forward end with a plate, 17, said plate being preferablyslotted, so that it may be adjustably connected with said lever. The plate 17 is joined by a link, 18, with the short arm 19 of the take-up lever I. By adjusting the plate 17 on the lever E it is obvious that the movements of the take-up lever I may be Vproperly timed and adjusted. A

To the take-up lever I is secured a light supplementary spring take-up, 20, which is conlned in its upward movement to the takeup I by a loop, 21. Eyes 22 23, for the passage of the thread, are provided at the lower ends of the take-up lever I and supplementary take-up 21. The thread passes from the spool 24 around a tension-bar, G, of ordinary construction, and through guide- eyes 25 and 26 on the forward end of the arm B. From the guide-eye 26 the thread is carried upward through the eye 22 in the endof the take-up lever I,then tothe eye 23 in the end ofthe supplementary take-up, whence it passes downward through an eye on the lower needle-bar guide, 10, to the eye ofthe needle.

The links 6, 7, 18, and 69 are all split, or

formed in two pieces, each link having at each 1 end a spherical cavity or socket tting on a ball-stud on the respective parts or devices to be connected by said links. By this construction positive but free and loose connections between the various parts are secured.

As the two parts of the links are secured togetherby screws,they may be separated and the adjacent faces filed-away to take up any wear which may occur in the spherical sock` ets.

The operation of my machine is as follows: Motion being given to the driving-shaft, the

IOO

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eccentric 4 thereon, through the connectingrod 5,primary and secondary levers E and F, and links 6 and 7, imparts a reciprocating movementtotheneedle-bar. Inthepresentinstance the relative arrangement and connection ofthe levers Eand F are such that the wellknown double reciprocating or dip77 movement will be given to said needle, the upward movement for the second descent being very small. This dip movement, however, is notessential, as in the construction shown the looper or hook 75 seizes the loop of needle-thread on the first descent of the needle; but it is essential that the needle, before it makes its final ascent, should pause a sufficient length of time to enable the looper or hook to carry the loop of needle-thread around the point of the shuttle, and to do this before the needle rises the said looper or hook must move with great rapidity after it has caught the loop of needle-thread. The looper or hook 75 is operated by means of its connections with the shaft 7l, which, as before explained, has a differential movement, the rapid portion of its revolution commencing when the said looper or hook is about to catch the loop of needle-thread,andcontinuing while it is carrying said loop around the point ofthe stationary shuttle 76, after which time the slower movement of the shaft occurs, causing the looper to slacken its speed to enable the take-up to draw the thread entirely around the shuttle and its interlocking thread, and to tighten and thus complete the stitch. The rapid movement of the looper or hook when passing the needle insures the engagement of said hook with the developed loop of needle-thread. Thus the operation continues, the stitches being repeated indefinitely while the machine runs. As soon as the loop of needle-thread has been carried around the point-of the shuttle by the looper or hook 75, and has become disengaged from said looper or hook as the latter backs or travels away from said loop, the supplementary take-up spring 20, which has been drawn down by the rapid expansion of the loop, suddenly reacts and pulls the thread quickly around the shuttle and out of the way of the advancinglooper before the main take-up I rises to complete the stitch. The supplementary take-up 20 also serves to keep the thread from slacking during the first part of the descent of the needle-bar, thus holding the thread out of the way of the point of the needle. lThe upward movement of' the supplementary take-up is limited by the loop 21, as before explained. The traveling or lateral movements of the needle-bar and needle across the line of the feed are produced by the face-cams 32 on the worm-wheel 33, through the lever 31 and rod 30, the latter being connected to the swinging needle-bar frame H. The return movement of said frame and of its connections to the face-cams is induced by the plate-spring 11. As the worm-wheel 33 is moved to the extent of one tooth only at each revolution of the driving-shaft, and as each face-cam on said worm-wheel, in the form of my invention herein shown, has a sectoral length equal to six teeth on said wheel, it follows that six descents .of the needle will occur and six stitches thus be formed while each one of said face-cams is traveling over the toe-piece 4l of the lever 3l. The upward and downward slopes of the face-cams 32 are equal, and three stitches will be formed while the toe-piece is riding upward and three while it is riding downward on each cam. From this it will necessarily result that the needlebar will move laterally in one direction during three stitches, and laterally in the opposite direction during three succeeding stitches. The first of each of these series of stitches will be formed in the fabric entirely on one side of the line of union of the abutted edges, thus constituting an anchoring-stitch. rllhe second will extend across the line of union, and the third will be an anchoring-stitch in the fabric on the side ofthe abutted edges opposite to the first. In returning, the needle will make a similar series of three stitches running in the other direction. As the feeding mechanism herein shown and described will have continually advanced the goods at each stitch, and as the traversing movements of the needle-bar and needle are nearly at right angles to the line in which the work is moved, each series of three stitches will be diagonal to the line of union of the abutted edges. The anchoringstitches above referred to are necessary to formastrong seam in knitted goods, which are of a loose and elastic character; but the number of stitches in each series may be varied with the character of the work by changing the form and sectoral extent of the face-cams 32 on the worm-wheel 83, as will be obvious to those skilled in the art to which my invention relates. Thus, if it is desired to form plain zigzag stitches, which will be desirable with much ofthe work for which my machine is specially adapted, the cams 32 on the Wheel 33 will occur at the alternate teeth of the said wheel, so that the swinging needle-bar frame and the needlebar carried thereby will receive short horizontal movements, causing the needle to descend alternately in two different vertical planes. It will be observed by reference to Fig. 5 that the forward part of the path traversed by the looper or hook 75 is nearly an exact semicircle. The pivot-pins securing the swinging needle-bar frame to the forward end of the arm B are arranged as nearly as possible in a vertical line coincident with the center or point from which the semicircular path traversed by the looper or hook is described. By this arrangement the needle, as it moves laterally, will be confined to acurved path coincident with that described by the looper or hook 75, and it will therefore not be displaced from its proper operative relation to the looper by its lateral movements. The

ball-and-socket connections of the link 7 with the needle-bar and its operating-lever F per IOO mit the needle-bar te be moved laterally with its frame H and still retain its proper connection with said lever. The feeding-wheels, with the operating mechanism herein shown, receive an intermittent rotary movement from the worm-wheel 33 through the shafts 61, 58, and 54 and their connected gearing, the feeding movement occurring, as in most other machines, when the needle is out of the work. The feeding-wheels being arranged slightly in front of the needle or sewing-point, the work is pushed along, the converging arrangement of the wheels serving to press the abutted fabrics closely together, as heretoforerexplained.

I do not wish to confine myself to the specific mechanism herein shown and described, as many changes within the province of mechanical skill may be made without departing from the spirit of my invention. It will also be understood that parts of my invention may be used independently of other parts, if desired, or with other mechanisms serving the purpose of the mechanisms which I have shown. For example, my special feeding mechanism might be used with a different kind `of stitch-forming mechanism, or the stitch-forming mechanism with a different kind of feed. i

The mechanism for moving the needle-bar and needle laterally, with the modication here before suggested, might be employed in machines for working button-holes or overseaming; also, instead of the lock stitch mechanism herein shown and described, different devices co-operating with the needle -to form chain or other kinds of stitches might be used in connection with the other features of my invention. rIhe lock-stitch mechanism is, however, preferred for the class of work for which this machine is specially intended, as with this form of stitch the seam is alike on both sides of the fabric, and will not rip to any appreciable extent should the threads accident-ally be broken. I do not, however, claim, broadly, in this application many of the features of my invention, as they are reserved forvother applications.

The needle-bar and its bearings and the looper mechanism constitute the subj ects-matter of applications Nos. 131,489 and 131,488, respectively, filed simultaneously herewith. The feeding mechanism and the shuttle are embraced by my applications Nos. 136,233 and 136,234, respectively, filed June 28, 1884.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a sewing-machine, the combination of a bracket-arm, primary and secondary needleoperating levers loosely connected together and havinglong and short arms, the said long arms extending horizontally along said bracket-arm, a needle-bar loosely connected with the forwardend of the long arm of the said secondary lever, and mechanism for operating said levers, substantially as set forth.

2.A In a sewing-machine, the combination of a driving-shaft having an eccentric thereon, a pitman connected with said eccentric, primary and secondary needle-operating levers loosely connected together and with said pitman, a swinging needle-bar frame, mechanism for vibrating said frame, and a needle-bar mounted in said frame and loosely connected with the forward end of said secondary lever, substantially as set forth.

3. In a sewing-machine, the combination of a driving-shaft, an eccentric thereon, a pitman connected with said eccentric, primary and secondary needle-operating levers, a link for connecting said levers, a swinging needlebar frame, mechanism for vibrating said frame, a needle-bar mounted in said frame, and a link having ball-and-socket connections with said needle-bar and said secondary lever, substantially as set forth.

4. In a sewing-machine, the combination of a needle-bar, a swinging frame in which said needle-bar is mounted,aworm havingathread of a uniform pitch, a worm-Wheel provided with a series of face or side cams, a lever engaging said cams, and a rod connecting said lever with the said swinging frame, substan- "tially as set forth.

5. In a sewing-machine, the combination of a needle-bar, a swinging frame in which saidv needle-bar is mounted, a worm-wheel having a series of face or side cams, a lever engaging said cams, and a longitudinally-adjustable rod connecting said lever with said swinging frame, substantially as set forth.

6. In a sewing-machine, the combination of a needle-bar, a swinging frame in which said needle-bar is mounted, a worm-wheel having a series of face or side cams, a lever operated by said cam-wheel, and a rod attached to the said swinging frame and adjustably connected with the said lever, substantially as set forth.

7. In a sewing-machine, the combination of a needle-bar, a swinging frame in which said bar is mounted, a worm-wheelhaving a series of cams, mechanism through which said cams move said swinging bar laterally, and a feeding mechanism connected with and 'thus receiving its movement from vsaid worm-wheel, substantially as set forth.

8. In a sewing-machine, the combination, with a needle-bar and mechanism for reciprocating said bar vertically and horizontally, of a stationary shuttle, a looper for carrying the needle-thread around said shuttle, and mechanism for imparting a circular movement to said looper in a horizontal path, substantially as set forth.

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9. In a sewing-machine, the combination of a driving-shaft, a needle-bar, primary and secondary needle-operating levers connected with said shaft and needle-bar, a secondary shaft having its axis in a different plane from that carried by the said needle-bar, and connections for operating said co-operating stitchforming device from said secondary shaft, substantially as set forth.

10. In a sewing-machine, the combination of a needle-bar, a vertically-pivoted needlebar frame, mechanism for swinging said frame horizontally on its vertical pivots, a stitchforming device co-operating with the needle carried by the said needle-bar, and means for moving said co-operating stitch-fcrming device, when adjacent to the said needle, in a curved path corresponding to that in which the needle is moved when the needle-bar frame and needle are swung laterally, substantially as set forth. v

11. In a sewing-machine, the combination, with a hook or looper adapted to co-operate with the needle informing stitches, and means for moving said hook or looper in a circular path when near the needle, of a needle-bar and a needle-bar frame, the latter mounted on pivots which are arranged as nearly as possible in a plane coincident with the point from which the arc of the circle in which the said hook or looper moves when adjacent to the needle is described, so that thelatter in its lateral movements will follow the curvature of the path in which the said hook travels when on that side of its orbit which is nearest the needle, substantially as set forth.

12. In a sewing-machine, the combination of a needle-bar, mechanism for reciprocating the same vertically and horizontally, afeeding mechanism arranged above the Work-plate, a stationary shuttle placed beneath the workplate, and mechanism for carrying the needlethread around said stationary shuttle, substantially as set forth.

13. In a sewing-machine, the combination of a driving-shaft, a secondary shaft connected with said driving-shaft and having its axis in Aa different plane-from the axis of the latter, a hook or looper, connections between the said hook or looper and the said secondary shaft, a stationary shuttle, a needle-bar, mechanism for reciprocating said bar vertically, a needlebar frame, mechanism for vibrating said frame horizontally, a feeding mechanism, and means for imparting the proper movements to said needle bar, needle bar frame, and feeding mechanism from the said driving-shaft, substantially as set forth.

14. In a sewing-machine, the combination of a needle-bar, mechanism for reciprocating the same vertically and horizontally, feeding and take-up mechanisms arranged above the workplate, a stationary shuttle placed beneath the work-plate, and mechanism for carrying the needle-thread around said stationary shuttle, substantially as set forth.

15. The combination of a stitch forming mechanism comprising a needle-bar, mechanism for reciprocating` said bar vertically and horizontally, a slotted throat-plate to accommodate the horizontal movements of the needle carried by the said bar, two feeding-wheels arranged above the work-plate and on opposite sides the said needle, and mechanism for operating said feeding-wheels, substantially as set forth.

16. The combination of a stitch forming mechanism comprising a needle-bar, mechanism for reciprocating said bar vertically and horizontally, two feeding wheels arranged above the work-plate and at an angle to the movement of the work, and mechanism for operating said feeding-wheels, substantially as set forth.

17. The combination of a stitch forming mechanism comprising` a work-plate, a needlebar, mechanism for reciprocating said bar vertically and horizontally, two feeding-Wheels arranged above the said work-plate, and a presser foot placed between said feeding- Wheels, substantially as set forth.

18. The combination of a stitch forming mechanism comprising a work-plate, a needlebar, mechanism for reciprocating said bar vertically and horizontally, a bracket-arm, a feed hanger-frame supported by said arm above the Work-plate, feeding-wheels carried by said hanger-frame, gearing, also carried by said hanger frame, for operating said feedingwheels, and a spring connected with said hanger-frame and a fixed part of the machine, for yieldingly holding said wheels against the work-plate, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

SAT'IERLEE ARNOLD.

Vitnesses: l

HENRY GALVER, ALBERT H. Noni-ars.

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