US1642283A

US1642283A - Sewing machine for darning

Info

Publication number: US1642283A
Application number: US165793A
Authority: US
Inventors: Wieland Edouard
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-04
Filing date: 1927-02-04
Publication date: 1927-09-13
Anticipated expiration: 1944-09-13
Also published as: GB284710A

Description

sept. 13, 1927.

EL WIELAND SEWING MACHINE FOR DARNING 6 Sheets-Sheet l Filed Feb, 4, 1927 n 1,642,283 Sept. 13 1927 E. WIELAND SEWING MACHINE FOR DARNING Filed Feb. 4. 1927 i 6 Sheets-Sheet 2 1,642,283 E. WIELAND SEWINGMACHINE FOR DARNING Sept. 13|, 1927.

Filed Feb. 4. 1927 `e sheets-sheet 5 1,642,283 Sept 13 1927 E. wlELAND SEWING MACHINE FOR DARNING v Filed Feb. 4, 1927 6 Sheets-Sheet 4 E. WIELAND SEWING MACHINE FOR DARNING sept. 1 3, 1927. 1,642,283

Filed Feb. 4. 1927 6 Sheets-Sheet 5 1,642,283 Sept. 13, 1927. E. WIELAND.

SEWING MACHINE FOR DARNING Filed Feb. 4. 1927 6 Sheets-Sheet 6 ff ff Y fwd/7%@ Patented Sept. 13, 1927.

'PTENr OFFICE.-

:moon-n mmm), or' BinL-xmmrscn, swrrznnmmn.

SEWING E IB DANIN G.

`Application. tiled February 4, 1927. Serial lo. 185,793;

The subject-matterof this invention is a sewing machine comprising an improved device for repairing knitted goods, e. g hose, and the like. 1 In knitting devices used heretofore for this purpose so-called tongue needles penetrate the work and draw the l'workingthread from the other side of the work through the latter forming the loops or stitches.

In contradistinctionl thereto, in the machine according to the present invention the working thread isibrought, similarly as in a sewing machine, by an eyeletted needle through the work into the reach of a gripper and a stitch needle. y

By means of this mode of operation which is ythe opposite of the former method the following limportant advantages are -obtained 1. The 'perforating needle can be so selecbed for each piece o work to be performed that it can pass to and fro through practicall every kind of fabric or knitted material, owever fine the mesh or stitches, Without any danger o f tearing loop or stitches at the edge of the hole to be knitted.

2. As the workin thread never leaves the hole of the fee needle which has no movable tongue or latch, no knots and consequently no disturbance in working ycan occur during the 'feed of the thread, as is the case in machines having tongue or latch needles.v

3. The last row of stitches can be nished on the machine, which in known machines must be done by hand after removal of the work.

4. The breadth of the patch can be varied according to the shape of the hole in the work for saving thread, whilst in known machines the breadth must be made and maintained from first to last corresponding to the maximum breadth of the hole. v

5. The edges of the damaged part of the work are not strained by tongue or latch needles penetrating the fabric.

In the machine according to the present invention the sewing needle, when knittin serves as knitting needle and as thread fee er which is intended to bring the working thread for forming loo s and stitches through the stretched wor and for bringing through within reach of the sewing ma-f chine gripper la loop that is held on the 'to the loop other side of the workby a loop holder in` the path of the knitting needle and transversely thereof. Between a framecarrying the work and the loop holder isfsituated a row of sinker or loop' needles moved indivldually to and fro 'in succession, which needles take up in order to the loo or stiches formed b the gripper and de iver them older before the formation of a new loop or stitch. v

According to another feature of the inventlon, the gripper is formed as a doubleended swingingngrip er'which can form stitches or loops in both directions ofswinging as it hastwo oppositely directed grippirllg points. urther, yaccordin to the invention there 1s provided a device which theentire row of loop needles can he so shifted step-bystep transversely to the loop needles that these needles are brought insuccession Within reach of a positively controlled slide that serves for withdrawlng the loop needle situated in the path of the knitting needle for the delivery of the stitch or loop held by it and for clearing the path of the knitting needle, and also serves for feeding it forward, for receiving the new stitch or loop, in the same row of the other loop needles.

Other features of the invention will bel` described hereinafter and pointed out in the claims. 1

The invention is illustrated dia ammatically andvby way of example int e accompanying drawings wherein like lreference characters designate like parts throughout the several views, and in which .Figure 1 is a side elevation, partly in longitudinal section through the lower part of a machine according to the invention,

Figure 2 is a plan showing half of the front part of the machine base-plate,

Figure 3 is a plan of the lower part of the machine below the base-plate,

Figure 4 is a cross-section, enlarged, taken on the line IV-IV in Figure 1, and

Figure 5 is a cross-section, enlarged, taken on thelin'e V-V in Figure 1; Figure 6 shows the material transporter as seen from the front, enlarged, when' for sewin and l Figure is a 1an of the same;

Figures 8 al! 9 are two views 'of the switch device for the row of loop needles, as seen in the direction of the arrow VIII shown in Figure 1;

Figures 10 and 11 show the change-over device for the drive of the switch device as seen from the front, according to the arrow X shown in Figure 1, and

Figure 11a is a detail viewof parts shown in Fig. 11;

Figures 12 to 21 illustrate the operation of the machine when knitting in different stages;

Figure 22 is an elevation of the drive of the material transporter, and

Figure 23 is a detail view of parts of the same;

Figures 24 and 25 show a sinker needle Y in plan and side elevation, respectively, on

an enlarged scale,

Figures 26, 27 and 28 are cross-sections thereof, and

Figure 29 is a plan of the loop opener.

According to the drawings, the base-plate 1 of the sewing machine is provided at its rear end in the usual manner with a hollow upper arm 2 which contains, likewise in known manner, a driving shaft 3 and driving mechanism for a needle rod I4 and a thread feeder 5. These parts are only part-ly shown and may be formed 1n any convenient manner.

At the underside of the base-plate 1 is arranged a trough-shaped casing 6 having in its bottom a broad groove 7 wherein a slide 8 is slidable lengthwise of themac'hine. This slide can be fixed in its end positions by any convenient means, not illustrated. For using the machine for sewing the slide is fixed in its rear position shown by broken line in Figure 1; in the front position shown in full lines in Figure 1, the slide is placed ready for using the machine for knitting. In order conveniently to shift the slide 8 from one end position into the other a pivot 9 depends from the slide through a longitudinal slot 10 in the bottom of the casing 6 and through a lever 11 which is rotatable about a pivot 12 and can be grasped by a hand at its free end.

A gripper shaft 15 is journaled in an upwardly extending arm 13 fixed on the bottom of the casing 6 and in a cross-bar 14 fixed at both ends in the latter. This shaft carries at its rear end a pinion 16 that meshes with a considerably larger toothed wheel 17 carried by a horizontal axle 18 rotatable on the pedestal of the upper arm 2. On the rear face of the gear wheel 17 is arranged a link 19, into which extends a pin 20 of a connecting rod 21 pivoted in the usual manner to a crank, not shown, of the driving shaft 3. The pivot pin extends also into a slide block 22 of a link 23 which is mounted to rock at about the middle of its length about a pivot 25 rotatable in the rear wall 24 of the casing 6. This link 23 is locked in one 4of the. slanting positions shown in Figures 10 and 11 by one or other of two pawls 26 and 261, whichever engages in the lower end of the link 23. During the upward and downward movement of the connecting rod 21 the pivot 20 slides, according to the position of the link 23, on

one or other side of the vertical plane pass" ing through t'he pivots 18 and 25, as the pivot 25 is situated below the pivot 18 and the block 22 moves only in the upper half of the link 23. According to the position which this link occupies, therefore, the pin 20 drives the wheel 17 on one side or the other. The gear ratio of the two

wheels

16 and 17 is so selected that when the wheel 17 rotates 90- the wheel 16 rotates about 250.

The front end of the shaft 15 carries a double gripper having two gripper points 271 spaced apart and directed towards one another, between which the sewing or knitting needle 28 of the needle rod 4 extends when the gripper is in the position shown in Figures 4 and 16. The two 4gripper points enable the gripper to form loops or stitches when swinging in either direction out of the start-ing position shown in F igures 4 and 16. The gripper 27 serves, when sewing, like an ordinary ring gripper for receiving the lower thread-spool 29 and for forming loops, but works, when sewing, in only one direction, whilst when knitting it works in both directions alternately for .forming rows of loops. When not in use,

i. e. when knitting, the annular shuttle 29 lies on an annular holder 30 which is mounted to swing up and down at 32 on the bottom of the casing 6 by means of an arm 31, and is held both in its vertical and in its lowered position by` a bent, laterally resilient arm 33.

Immediately behind the gripper there is fast on the shaft 15 a cam disc 34 which serves for lifting the material transporter 35 (Figs 1, 3, 6 and 7). In Figure 1 this transporter is not shown because the sewing machine is used for knitting in the position in which it is shown. This transporter 35 is at the free end of a lever 36 pivoted to a lever 37 whose shaft 38 is driven by a device described hereinafter. When not in use the transporter 35 liesswung away to one side as shown in Figure 3 and in broken lines in Figure 6.

The shaft 38 lies parallel to the shaft- 15 and carries fast on its rear end, away from the lever 37, a lever 39 to which a swinging member 40 (Fig. 22) is pivoted. This member 40 is mounted on a pivot 41 of a slide block 42 slidable in a link 44 able to rock about a pivot 43 carried in the pedestal of the upper arm 2. The upper end of this swinging member 40 is forked at 45'and embraces a cam disc 46 fast on the main sha-ft Sinker needles 71 (Fig. 3)v are situated be- 3. When the cam 46v rotates, the member 40 is rocked to and fro about the plvot 47 y on the lever 39 and theA block 42 is thereby reciprocated in the link 44. As the latter is placed slantwise the swinging member 40'1s `simultaneously moved up and down, this movement being more or less according the position of the link 44. The shaft 38 1s thereby oscillated, by whichthe

levers

37 and 36 are reciprocated with the transporter 35 which during one of its long1tud1 nal movements is lifted by the cam 34 into the operative position indicated'm broken linesY in,Fig11re 6. I v

A hollow shaft 48 is slidable lengthwlse on the shaft 15, and is provided at 1ts front end with a control disc 49, to whose front face a cam 51 is attached by means of a.

osition of the etachably couscrew 50. In the front end hollow shaft this cam 51 is pled with the shaft 15 by a pin 151 that is arranged on the shaft 15 and enters into `a recess 511 of the disc open at the front. The disc 49 has at its rear side a cam groove 52, in which runs an anti-friction roller, 53 (Fig. 4) mounted on an arm 54 of alyoke 55. 'lhis yoke of U-sha-pe is mounted to swing laterally about a ivot 56 fast on an e e 57 of the slide 8. t the upper end o the yoke 55 are two bolts or studs 58, one 1n each limb, which bolts together carry at their front ends a fiat bow 59 having in the middle two s aced, rearwardly directed, oppositely bent ooks 6() serving as loop 'o ener (Figs. 19, 18 and .29). Outslde the hoo s 60 two fingers 6l extend rearwardly and prevent the loop from being opened too wide by the gripper.

Two rearwardly extending, upwardly bent levers 63 Fig-3) are Journaled'coaxially in the si e walls of the slide 8, each on a pivot 62. A cross-bar 631 connecting these levers together carries in the middle an antifriction roller on a rearwardly directed arm 64 extending slantingly u wards; this roller 65 is lpressed against t e periphery of the cam 51 by the action of a spring 66 pressing upwards one of the levers 63 which are thus controlled by the cam. The levers 63 carry at their upper lends a cross-bar 67 (Figs. 4 and 13) connecting them together and having in the middle two upwardly and forwardly 68 which together constltute a loop holder. The distance between these points of the loop holder is so great that the needle 28 can readily pass between them. The cross-bar 67 is provided between these points with a recess 69 permitting the needle to pass through it. The points serve f or withdrawing atloop 70 from the loon or sinker needle 71 above them and for holding open the extending points 13 on the bottom of the casing.

thinner and less high than the stem 71",

In order to facilitate the loop-holder points 68 passing through a loop on the sinker ne'edle, the latter is provided at the top of` its point with two lateral lugs or flanges 71"', so that the needle point is of T-section. at

that part, as shown 1n Figure 26. A thread.

embracing the needle at this place therefore leaves, as indicated in broken lines in Figure 26below the flanges sufficient space for the entry of the points 68 into the loop. The sinker needle 7l which is situated just under the knittin needle 28 is drawn back, when the latter descends, by the device described hereinafter so that it disap ears completely with its point under the p atc 72, andthe latter removes from its olnt the loop 70 onl the needle in question (Fig. 15).

The shaft of each vsinker needle is provided at its rear free end on its lower side with a recess 75. Into the recess of the sinker needles situated beside the needle 28 there extends, from below, a cross-bar 76 (Fig. 1) fastened to the side walls of the slide 8, by which bar all the sinker needles are lheld against forward and backward of the sinker needle situatedlielow the needle 28 a nose 77 of a rod 78 which is guided to move lengthwise under the sinker needle in question 1n a corresponding recess 79 of the cross bar'- 76 and in the rear end wall 8 of the slide 8. The rod 78 is 4engaged by means of a downwardly extendingroller 8O with a cam groove 81 of a control drum 82 at the rear end of the hollow shaft 48, by which drum lthe rod 78 and the sinker needle 71 coupled with it is retracted and )lished forward with each swing ofthe sha t 48.

In order that at each swing of this shaft 48a different sinker needle may be actuated, the slide 74 which is guided in suitable recesses inthe side walls of theslide 8, is shifted with all thev sinker needles a step equal in length to the thickness of the latter. For this purpose the slide 74 is provided on its underside with a toothed rack 83' with which a pinion 84 meshes (Figs. 1 and 3). This imon is fast on a shaft 85 journaled paral el to the shaft 15 in bearings 86 on the one side wall of the slide 8 and in the arm The shaft 85 carries beside the `pinion 84 a ratchet Wheel 87, in which engages-a detent 88 which is bevelled on both sides and is carried by a spring 89 secured on the slide 8, whereby the l10o l movement. There engages in the recess 75 shaft 85 and with it the slide 74 is held in a given position. The two

wheels

84 and 88 extend into a recess 90 of the ad'acent side wall of the slide 8, so that when t e latter is 5 shifted the shaft 85 moves with it.

At its rear end the shaft 85 carries close together two ratchet wheels 91 and 92 (Figs.

8 and 9) having oppositely directed teeth. In the working position of the slide 8 these 10

wheels

91, 92 are situated within reach of two'

pawls

95 and 96 rotatable about two pivots 93 and 94 on the gear wheel 17, each of which pawls is held under the influence of a spring 97 bearing against a pin 98 and lies in the general plane of its allotted ratchet wheel. Accordlng to the position of the link 23 and consequently according to the lworking direction of the link 19 trhe pawl 95 temporaril engages with the ratchet N wheel 91 ory t e awl 96 with the ratchet Wheel 92. The siaft 85 is rotated by the pawl 91 in one direction and by the pawl'92 in the opposite' direction and consequently the slide 4 is fed one step in the correspon ing direction in each case. In order automatically to change the direction of feed the following device 1s rovided.

Two arms 99 1g. 5) extend from the slide 74 to the rearbeyond the sinker needles 71. At the rear ends these arms 99 carry a rod 100 that is parallel with the slide 74 and has line toothing on its underside. On the rod 100 are two

stops

101 and 102 which are pressed upwards by leaf springs 103 (Fig.

5) housed in them so that teeth 104 formed on their lower parts mesh with the toothing of the rod 100 and are thereby held at thefdesired position, and extend upwards through a slot 1 in the base plate '1. When the

stops

101 and 102 are depressed against the action of their springs 103 they can be shifted along the art of the rod 100 carrying them and be a justed as desired. A two-armed lever 105 free to rotate about the hollow shaft 48, the two ends of which lever are forked, extends from below the

stops

101 and 102 into their reach. The lower end of this lever 105-embraces va pin 106 which extends rearwardly from a lever 107 of a shaft 50 108, so that the lever 105 can slide on the pin to the rear without leaving it. The shaft 108 is )journaled on the one hand in the rear wall 8 of the slide 8 and on the otherhand in the rear wall 84 ofthe casing 6. On the rear end of the shaft 108 is' fast an upwardly extending arm 109 and behind this are pivoted the two paWls 26 and 26 aforesaid. These awls are provided each with an executive ug or

extension

112 and 113, to each of which is attached from below a tension spring 114, so that the pawls always bear against stops 115 extending from the wall 24, b which their upward movement 1s limited. ln this position the free ends of the

pawls

26 and 26 are within reach of the a slot 110 in the lever, is rocked by the shaft 108 out of its end position indicated in broken lines in Fig. 10 into the end position` shown in full lines, Which occurs at the moment when the block 22 is in its upper end position, the rod 117 is brought by its link 119' into the reach of a rojection 120 of the block y22 that lies out o the general plane of the lever 109. This block 22 has on its opposite side a similar horn-like projection 120 for the rod 118. When the block 22 descends and its horn 120 strikes the rod 117, the pawl 26 is moved by the latter down out of the link 23. Shortly afterwards the block 22 hits against the upper end of the arm 109 With a shoulder 120 arranged on the horn 120. A torque is now exerted to thev left on the block by the arm 109 and asthe pivot pin 20 of the block has arrived .in alinement with the pivot 25 of the link 23, and the latter is thus relieved from any force acting on it, the link 23 swings from the position shown in Fig. 10 into that according to Fig. 11. In this position the link is arrested by the pawl 26.' The changed posi` tion of the link 23 then occasions the rocking of the link 19 of the wheel 17 to the opposite side so that the pawl 96 then begins to coact with the ratchet wheel 92 which turns the shaft 85 intermittently in the o `posite sense and thereby shifts the slide 4 with the sinker needles to the opposite side. In order that when the slide 8 shifts the Vhollow shaft 48 may also be moved the latter is provided in a head 121 with an-annular groove 122, into which there engages from below a fork 123 fast on an arm 8 of the slide 8 (Figs. 1 and 5).

A downwardly curved frame 124 serves for holding the work, which frame is surrounded by an elastic tie, for example an endless coil spring, 125 which lies in a groove 126 in the frame and tightly stretches on the latter a piece of work drawn down over it. The frame 124 is so suspended by means 0f two arms 127 that it can swing forwards and backwards on two curved standards 128 mounted detachably in the slide 74. These standards extend upwards through an aperture 129 in the plate 1 and are removed from the slide 74 when the machine is to be used for sewing. After the removal of the standards or posts 128 from the slide 74 the rear part of the a erture 129 can be closed by a flap 130 whic is hinged at 131 to the pnate 1 and is folded back to the rear durin itting, as shown in Fig. 1. The front en CTI Lampes of the aperture 129, which affords access t0- the gripper and shuttle, can be closed las -usual by a sliding shutter 132.

The manipulation Iand operation of the described 4machine for knitting may be briefly described as follows The slide 8 is irstset in its front end position. After turning back the flap the standards 128 are placed into the slide 74 and the frame 124 provided with the work is hung on the standards. The shuttle holder 30 is set in its inclined Cposition, so that the shuttle 29 is removel from the gripper r27 "and lies in 'the holder' 30.

The'transporter 35 is swung outwards as shown Yin Fig. 3. By rotating the main shaft 3 the thread feeder 5 and the needle rod 4 are actuated in the usual manner. The connecting rod 21 turns the toothed .wheel 17 to and fro in the manner described Vsame time, arrives vat the height of the sinker needle. As the sinker needle recedes the

loop holder

67, 68 moves forward. The loop holder does not assist in formlng the first row of loops. The needle 28 descends into the gripper 27 (Figs. 16 and 17) which makes the threadin the usual manner (as when sewin in the form lof a loop which, during its formation, is held open by the rearwardly swungl hooked

bow

59, 60. When the sewing needle ascends and the loop is drawn upwards the latter is hung on the simultaneously advancing sinker needle. At the moment when the needle 28 and the pivot 30 have reached their upper end positions the shaft 85 and with it the slide 74 is fed one step b one of the

pawls

95 and 96, whereupon t e cycle of operations for forming another loop can begin afresh.

Assuming thatthe first row of loops or any subse nent one has been made the operation of orming a stitch is as follows When the needle 28 descends and the sinker needle recedes the loop of' thread han ing on the latter is swept olf by the cover p ate 72 and as soon as it 1s situated on the flanges 71 is seized by the forwardly moving loop holder 68 (Figs. 14 and 15) and is so brought into the pathof the needle 28V that this, after piercing the work, enters through.

the loop into the gripper 26 (Figs. 16 and 17). In the lowest position of the needle' 28 the loop holder-'68 recedes and releases below the latter the the 4old stitch. The tgripper 27 then seizes read of the needle 28 and forms the loo for the new stitch (Figs. 18 and 19). Be ore this loop is released by the gripper the sinker needle 71 passes through it (Figs. 20 and 21). After the release of the loop it is pulled tight by they thread feeder until it lies on the sinker needle. In the upper end position of the needle 28 the shaft 85 is fed one step with the slide 74 and the entire row of sinker needles, whereupon a new stitch `i's formed in the manner described above.

The

stops

101 and 102 are set on the rod 100 according to the breadth of the row of stitches to be formed. As soon as one of these stops hits the lever 105 (see stop 102 in Fig. 5) the lever 109 is reversed b the lever 105, pivot 106, lever 107 and sha t 108. The link 23 is then rocked "from one end position into the other in the above described manner at the next descent of the block 22 by the

rod

117 or 118, whereupon the slide 74 withthe sinker-needles is fed in the op osite direction. The movement of the wor frame from one row of stitches to the next before a new row begins is brought about by the action of a spring or weight not illustrated. The last row of stitches is simply knitted or, if desired,- sewn to the work. n

The use of the machine for sewing will be readily understood. The posts 128 with the frame 124 are removed from the slide 74. The slide 8 is shifted into its rear end position indicated in broken lines in Fig. 1 together with the members used for knitting connected with it. The shafts 48 and 85 are thereby moved endwise. The shaft 48 is disconnected from the pin 15 'so that, during sewing, the gripper shaft 15 which is not movable endwise, can alone rotate.y When the shaft 85 moves backwards theratchet.

wheels

91 and 92 move out of the reach of the

pawls

95 and 96.. Then the

work transporter

35, 36 is swung inwards into, its working position. The aperture 129 is closed by the cover 130 and shutter 132 after the spool holder 30, 31 with the spool 29 has been swung up. `After the other operations usual for sewing have been performed, the machine can be used for sewing.

While a preferred construction ofimachine has been described above indetail it is to be understood that I do not limit myself to the constructional details enumerated, but

I claim 1. In a Sewing machine, a knitting device comprising-in combination a ,Sewing needle serving as knitting needle and thread feeder, a frame for the work, a loop holder said needle being arranged to bring the thread for forming loops and stitches lthroughfthe lian work on the frame and through a loop held on the other side of the latter by said loop holder in the path of the sewing needle transversly of the latter into the reach of a sewing machine gripper, a row of sinker or loop needles situated between said frame and said loop holder and arranged to receive the loops from the gripper, a device for shifting the entire row ot' sinker needles stepwise transversely of the direction of their length, means for moving to and fro the sinkel needle situated in the path of the sewing needle for delivering the previously formed loop to the loop holder and for taking up the new loop formed by the gripper, and means for reversing the direction of traverse of the sinker needles.

2. In a sewing machine, a knitting device comprising in combination a sewing needle serving as knitting needle andthread feeder, a frame for the work, a loop holder situated in the path of the needle and a sewingm'ach'ine gripper, which needle is adapted to bring the thread for forming loops and stitches through the work on the f rame and through a loop held on the other side of the latter by said loop holder into the reach of said gripper, which gripper -has two points, a gripper shaft carrying said gripper and arranged to swing to and fro and move the points of the gripper in the path ot the thread, a row of sinker or loop needles situated between said rame and said loop holder and adapted to receive loops from the gripper, a device for shifting the entire row of sinker needles stepwise transversely tothe direction of their length, means for moving to and fro the sinlrer needle situated in the path of the sewing needle for delivering the previously formed loop to the loop holder and for taking up the new loop formed by the gripper, means for reversing.

the direction of traverse of the sinker needles, a hollow shaft surrounding the gripper shaft, a cam on the hollow shaft, a lever that is controlled by said cam and carries said loop holder, and a member controlled by the hollow shaft for holding open the loop formed by the gripper.

3. lln a sewing machine, a knitting device comprising in combination a sewing needle lserving as knitting needle and thread feeder,

a frame for the work, a loop holder situated in the path of the needle and a sewingmachine gripper, which needle is adapted to bring the thread for forming loops and stitches through the work on the frame and through a loop held on the other side of the latter by said loop holder into the reach of said gripper, which gripper has two points, a gripper-shaft carryingsaid gripper and arranged to swing to and froand move the points of the gripper in thepath of the thread, a row of sinker or loop needles situated between said frame and said loop holder and adapted to receive loops fromv the gripper, a device for shifting the entire row of y sinker needles stepwise transversely of the direction of their length, means for moving to and fro the sinker needle situated in the path of the sewing needle for delivering the previously formed loop to the loop holder,

rod that is controlled by said drum and is so connected with the sinker needle in the'path of the sewing needle as to reciprocate the same, and means for holding the other sinkei needles with their ends all in a line and against longitudinal movement. i

4. In a sewing machine, a knitting device comprising in combination a sewing needle serving as knitting needle and thread feeder, a frame for the work, a loop'lioldei` situated in the path of the needle,'and a sewing-machine gripper having two points, which needle is adapted to bring the thread for forming loops and stitches through work on the frame and through a loop held on the other side of the latter by said loop holder into the reach of said gripper, a gripper shaft carrying the latter and adapted to swing its points in the path of the thread, a row of sinker or loop needles between said frame and said loop holder and adapted to receive loops from the gripper, a device for shifting the entire row ot' sinker needles stepwise transversely ot' the direction-of their length, means for moving to and fro the sinker needle situated in the pathof the sewing needle for delivering the previously formed loop to the loop holder and for taking up the new loop formed by the gripper, mea-ns for reversing the direction of traverse of the siuker needles, a hollow shaft surrounding the gripper shaft, a cam on the hollow shaft, a lever that is.

controlled by' said cam and carries said loop holder, a cam drum on the hollow shaft, a rod that is controlled by said drum and lisl so connected with the sinker needle inthe path of the sewing needle as to reciprocate the same, means` for holding all the other sinlrer needles with their ends all in aline and against longitudinal movement, which sinker needles have their ends serving for holding the loops formed as points which are each narrower and less high than the -needle shaft and have each at its l,upper iis lserving as i for forming comprisin in combination a sewin needle 'tt-ing needle and threa feeder, a frame for the work, a loop holder-sltuated in the path of the needle, and a sewing-machine gripper' having two points, which needlek is adapted to bring the thread loops and stitches throu h work on the frame'and through a loop he d on the `otherfsideof'the latter by said loop holder into the reachof said gripper, a gripper-shaft carrying the lattenand ada tf ed to swing its points in the path of tie thread, a row of sinker or loop'needlesbetween sairLframe and said loop holder and adapted to receive loops from the gripper, a device for shifting the entire ,-row of sinker needles stepwise transversely of the direction of their length, means for reciprocating the sinker needle situated in the path of the sewing needle for delivering the previously formed loop to the loop holder and for taking up the new loop formed by the ripper, means for reversing the direction o? traverse of the sinker needles, a hollow shaft surrounding the gripper shaft, a cam on the hollowy shaft, a lever that is controlled by said cam and carries said loop holder, a second cam on the hollow shaft, a rod. that is controlled by said second cam and is so connected with the sinker needle in the needle as to reciprocate t e same, means'for holding all the other sinker needles with their ends all in a line and against endwise movement, a slide carrying saidsinker needles one beside another, and posts detachably carried by said slide, from whichV posts said frame, which is curved down-4 wardl is pivotally suspended. y

6. n a sewing machine, a knitting device comprising in combination a sewing needle 1 vserving as a knitting needle and thread feedon the other side of the latter by said loop er, a frame for the work, a loopholder situated in the path of the needle, a s ewingmachine gripper having two points, which needle is adapted tobring the thread for forming loops and stitches through the work on the frame and through a loop held the previouslyformed loop to the loop' holder and for taking up the new loop formed by the gripper, ka hollow shaft surroundingthe grlpper-shaft. a cam on the hollow shaft, a lever that is controlled by said cam and carries said loop-holder, a secondcam on the hollow shaft, a rod that is controlled by saidsecond cam and is so conath of the sewing.

means for holding all the other sinker needle's with their ends all in a line and against endwise movement, a slide carrying said sinker needles one beside another, and means. comprising a rack and pinion and pawl-l and-ratchet mechanism operated by said ipper shaft and adapted to shift said s ide and sinker needles' stepwise transversely of the direction of length .ofthe needles in both directions.

7. In a sewing machine, a knitting device comprising in combination a sewing needle serving as a knitting needle and thread feeder, a frame for the work, a loop holder situated in the path of the needle, a sewingmachine gripper having two points, which needle is adapted to bring thread for forming loops and stitches through the Work on the frame and through a loop heldon the other side of the latter by said loop holder into the reach of said gripper', a; grippershaft carrying the latter and adapted to swing its points in the path of the thread, a row' of sinker or loo needles between said Irame and said loop Aolder and adapted to receive loops from the gripper, means forY reciprocating the sinker needle situated in the path of the sewing needle for delivering the previously formed loop to the loop-'holder and for taking up the new loop formedy by the gripper, a, hollow shaft surrounding the ipper shaft, a cam on the hollow shaft, a ever that is controlled by said cam and carries said loop holder, a second cam on the hollow shaft, a rod that is controlled by said second cam and is so connected with. the sinker needle in the path of thesewing needle as to reciprocate the same, means fori holding all the other sinker needles with their ends all in a line againstendwise move-v ment, a slide carrying said sinker needles one beside another, means comprising a rackand-pinion and pawl-and-ratchet mechanism operated by said gripper shaft and adapted to shift said slide and 'sinker needles stepwise transversely of the direction of length of the needles in both directions, al rod that is arallel with andirmly connected to said) hollow shaft and extending between said stops, which latter lever is adapted to operate a reversing device for a link that 'serves to guide a slide block of a second link which is fast on a driving wheel that meshes with slide, two stops adjustable on- -said rod, a lever free to rotate about said lou a pinion fast on the gripper shaft, which drlving wheel carries two pawls of said pawl-and-ratchet mechanism.

8. In a sewing machine, a kniting device comprising in combination a sewing needlev machine gripper having two points, which needle is adapted to bring thread for forming loops and stitches through work on the frame and through a loop held on the other side of the latter by said loop holder into the reach of said gripper, a gripper shaft carrying the latter and adapted to swing its points in the path of the thread, a row of sinker or loop needles between said frame and said loop holder and adapted to receive loops from the gripper, means for reciprocating the sinker needle situated in the path of `the sewing needle for delivering the previously formed loop to the loop .holder and for taking up the new loop formed by the gripper, a hollow shaft surrounding the gripper-shaft, a cam on the hollow shaft, a lever that is controlled by said cam and carries said loop holder,` a second cam on said hollow shaft, a rod that is controlled by said second cam and it so connected with the sinker' needle in the path of the sewing needle as to reciprocate the same, means for holding all the other Sinkel' needles with their ends all in aline against endwise movement, a slide carrying said sinker needles one beside another, a second slide that is mov- 9. In a sewing machine having av knittin device, a gripper-shaft a gripper carrie thereby and a slide movable on said shaft, said knitting device being for the most part arranged on said slide, a material transporter, a member carrying Said material transporter; a rocking shaft adjacent said slide, a lever on said rocking shaft for mov-.

ing said member to and fro and adapted to be swung outwards, a cam behind said gripper, on which camthe said member bears and is adapted to lift the saidl member from time to time with said material-transporter` into the working position relative to said knitting' device.

Signed at Berne, Switzerland, this 22d day of January, 1927.

EDOUARD WIELAND.