US616600A - Knitting-machine - Google Patents

Description

261M mpg/M No. 6I6,600.

Patented Dec. 27, I898 W. W. BURSUN.

KNITTING MACHINE.

(No Model.)

(Application filed Km. 18, 1888.)

I0 Sheets-Sheet I Jae/671107:

No. 6l6,600. Patentd Dec. 27, I898. W. W. BURSUN.

KNITTING MACHINE.

' (Application filed H8!- 13, 1886.)

I0 Sheets-Sheat 2.

No Model.)

ERS co. momurua, VJASNINGTQN n c No. s|a,soo. Patented m. 27, I898. w. w. BURSUN.

KNITTING MACHINE.

(Apphuahon filed In: 18 1886) I0 Sheets-Shani 3.

(No Model.)

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M m i ZWM ZWZQMM' Q No. 6I6,600. Patented Dec. 27, I898. W. W. BURSUN. KNITTING MACHINE.

(Applcaton filedl'lar 1a 1886) I0 Sheets-SheeI 4.

(No Nodal.)

wlfiidsses.

%M,/7, had run No. 616,600. P'aiented Dec. 27, I898. w. w. BUBSDN. KNITTING MAGHINE.

(Applicationflled Mar. 13, 1886.)

I0 Sheets-Sheet 6.

(No Model.)

jweiafair w W w w No. 616,600. Patented Dec. 27, I898. W. W. BURSON.

KNITTING MACHINE.

(Application filed In. 13, 1888.)

ID Sheets-Sheet 7.

(No Model.)

7 JweILZbR Wezaa e ms nnzks 001 v No. 6I6,600. Patented Dec. 27, I898. .W. W. BUBSON.

KNITTING MACHINE.

(Application filed Mai. is, 1886) I0 Sheets-Sheet 9.

(No Model.)

No. 6I6,600. Patented Dec. 27, I898. W. W. BURSDN.

.KNITTING MACHINE.

(Application filed Bar. 13, 18 86.) v

(No Model.) 7 I0 Shaets-Sheet I0.

UNrTEn STATES PATENT EErcE.

WILLIAM lVORTlI BURSON, OF CHICAGO, ILLINOIS.

KNITTING- MACHINE.

SPECIFICATION forming part of Letters Patent N... 616,600, dated December 27, 18958.

Application filed March 13,1886. Serial No. 195,111. (No model.)

To (tZZ whom it may concern Be it known that 1, WILLIAM WORTH BUR- SON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful lmprovementin Knitting-lllachines, of which the following is a specification.

This invention relates to knitting-machines of the class having needles set in straight parallel rows.

It consists in a peculiar general construction and arrangement and in many details therein,substantially as set forth and claimed hereinafter and as illustrated in the drawings, in which- Figure 1, Sheet 1, shows the machine in perspective. Fig. 2, Sheet 2, is an end elevation of the same. Fig. 3, Sheet 3, is an end elevation of the entire machine from the end opposite to that shown in Fig. 2 with a portion of the frame broken away to show the wormgear for operating the two pattern-cylinders. Fig. 4, Sheet 1, is a plan view of the whole machine with the arm V and its attachments removed. Fig. 5, Sheet 5, is an enlarged sectional view through thelinezcx of Figs. 4,Sheet 4, and Figs. 15, 16, and 17, Sheet 9, looking in the direction of the arrows at a and showin g the relation of the pattern-cylinder, shifting levers, needle-jacks, and actuating-cam, the latter being down in position to operate against the needle-jack lugs and the needles being projected to their utmost throw in position to be operated upon by the latch-opener on the yarn-carrier. Fig. 6, Sheet 5, is a similar section of a number of the same parts, taken in the same plane and showing the needle-actuating cam raised out of range of contact with the needle-jack lugs. Fig. 7, Sheet 5, is a similar view in the same plane, but showing the needle-jacks depressed by the shifting levers and pattern-cylinders, so that the needles are thrown out of work for both reciprocations of the camslides. Fig. 8, Sheet 6, is a plan view of one-half of the machine,taken on line 3- y of Fig. 7, the parts above said line being removed. Fig. 9, Sheet 7, is a vertical section through the line 3 of Fig. 4, Sheet 4,

and Figs. 15, 16, and 17, Sheet 9, looking in the direction of the arrows Ct at. Fig. 10,

' Sheet 7, is a vertical section through line :0 n of Fig. 1, showing the relation of the tensionbar toits operating cam-groove. Figs. 11 and 12, Sheet 7, are details of the track-plate. Fig. 13, Sheet 8, is a vertical longitudinal section of the upper portion of the machine, taken through the line 02 00 of Fig. 4, Sheet 4. Fig. 14, Sheet 8, is a detail of the hook-actuating cam-bar, looking into its carn-groove. Fig. 15, Sheet 9, is a top view of the needle-actu ating slides and their constructions, showing the symmetrical or corresponding construction for the opposite sides of the machine. Fig. 16, Sheet 9, shows the needle-moving cams as seen from below or turned over, the full lines of cams G G showing their position for doing tight or close work and the dotted lines their positions for loose stitches, and cam G being raised to avoid knitting. Fig. 17, Sheet 9, is a longitudinal section taken through the line :0 00 Fig. 15, and looking in the direction of the double arrows. Fig. 18, Sheet 10, is an underneath View of the yarn-carrier slides and warp-bar. Figs. 19 and 20, Sheet 10, are respectively a side view and an underneath view of the tensionbar. Fig. 21, Sheet 10, is an underneath View of block N. Fig. 23, Sheet 2, is a side View of yarn-carrier wheel U. Fig. 22, Sheet 3, is the yarn-carrier. Fig. 24:, Sheet 7, shows hook P. Fig. 25, Sheet 10, is a diagrammatical view looking at right angles to the rows of needles and showing which portion of each row of needles is active and which inactive in rounding the heel of a sock. Fig. 26, Sheet 8, is a detail of the pattern-wheel.

Similar letters refer to the same part throughout the several views.

The machine has end frames B, with legs A and top parts N, which are connected with cross parts 0, Q, G, K,D, and H in duplicate. It has two parallel rows of needles working in needle beds or holders 0, set at an angle of about thirty degrees, so their points will cross when advanced in knitting and with a space a between the proximate edges of said needle beds or holders for the descent of the fabric. It also has two sets of pattern-cylinders I and slides G, R, T, and M, one set for each row of needles parallel thereto and connected together in pairs, and various other operating parts and details.

The needles E are of the kind known as latch-needlcs,and have shanks turned up at their outer ends. They reciprocate in groovesin needle plates or beds G,which have covers Q, supporting certain parts above. These needle-grooves are of greater depth than the height of the shanks of the needles, and the needles are operated by jacks F, which connect with the shanks of the needles by hooks F. Filler-pieces E, which also are engaged bysaid hooks, fill up the spaces above the needles to the covers of the grooves, so as to enable the needles to be held firmly and truly, while leaving them free to reciprocate and also to be taken out with their jacks without removing the groove-covers. The jacks F have pins or lugs b, on which cams act to move the needles back and forth in knitting. The jacks F are acted upon by levers H at their outer ends, so as to enable the said jacks to be raised to bring the lugs or pins 1) into contact with the cams for operating them or to be lowered to hold any particular needle out of action without dropping its loop. The levers H are pivoted on a rod D, which latter is held at its ends in blocks D Fig. 9, which are attached to crossbar D, and each lever H has two points 0 c on opposite sides of the pivot of the lever to engage with projections on the corresponding patterncylinder. These two points are put so as to fit onto separate disks in the cylinders, one to throw the needle into action and the other out of actionthat is to say, one point is offset laterally slightly with respect to the other point. These levers H have a peculiar formation to engage with jacks F that is to say, each of such levers has an open space H to receive the end of the corresponding jack when the latter is drawn down and a projecting point H to hold the said jack up when knitting. These levers play in vertical slots or grooves in the parts H whereby they are retained from lateral displacement and are held over the pattern-cylinders I, so as to engage properly with the disks therein and with the needle-jacks.

The machine has two slides G G, arranged to move in seats in frames B B and connected by a cross-bar G bearing a handle or pin G, by which they are pushed back and forth to operate the machine by any suitable motor, either hand or power. These slides are flat plates, and near their centers triangular spaces are out through them for the reception of advancer-cams G G, (see Figs. 15, 16, and 17, Sheet 9,) having their lower sides parallel with those of the slides. These cams are held on the free ends of bars J J, the latter being located on top of the slides and extending from cams G toward the handle or pin G, the ends thereof which are adjacent to said handle being hinged to the slides at 2' i, so that the cams may be moved up and down in said spaces. This construction permits the said cams to be moved in said spaces or slots in the slides either down into engagement with the lugs b of the jacks, so as to advance the needles, or up, so as to ride over said lugs and allow the needles to remain at rest. The position of eachcam is regulated by a laterally-projecting pin j, attached to each bar J near the corresponding triangular cam, which pin travels in a grooved track Z- in plate K, Fig. 5, Sheet 5, Fig. 8, Sheet 6, and Figs. 11 and 12, Sheet 7. This groove is provided with a switch on or m at each end, which switches are each mounted on a rockshaft m held in bearings in the track-plate. The said rock-shafts each have upon the side of the track-plate opposite the switches an arm 01, Figs. 8, 11, and 12, adapted to be operated upon to change the position of the switches. \Vhen both switches on m of a given plate K are elevated or parallel with the track-grooves Z, the pin j of the corre sponding bar J, carrying a triangular cam G, simply moves back and forth in the groove Z in the position shown in Fig. 5, and in this position the triangular cam is low enough to strike the lugs 11 of the needle-jacks and operate the needles at both the forward and the backward movement of the cam-slides, one face of the triangular cam advancing the needles at one stroke and the other face of said cam advancing the needles at the return stroke, the needles being drawn back in the interval by the retracting-cam, as hereinafter described. If one switch on of-a given plate K be down, as shown at the left-hand side of Fig. 12, then at one stroke of the slide G the pinj will travel in the groove Z and the needle-advancing cam G will be made to operate the needle-jacks, while the return stroke will be made with pin 7' upon the upper side of the track-plate, as in Fig. 6, and cam G will be above the needle-jack lugs, and hence the needles will remain at rest. If both switches m m of the plate K are thrown down into an inclined position, the pin j will always ride on the top of the track-plate and the advancing needle-cam G of that side will always be held out of range with the needle-jacks for both strokes. It will thus be seen that in addition to the individual adj ust-ment of the needle-jacks by the movement of levers H all of the needles may be operated collectively twice for every complete reciprocation or once for every complete reciprocation, or they may be entirely thrown out of action. The effect of these several adjustments of the four switches and of levers H is as follows: \Vhen the switches are all up, the pinsj j reciprocate back and forth in the grooves Z Z, and all the needles on both sides are operated at every forward and backward movement, a flat ribbed fabric being the result of such knitting. When one switch is down on each side and on opposite ends of the machine, on the advance movement the needles on one side knit and on the return are quiescent, while on the opposite side on the advance they are quiescent and on the return they knit, thus knitting forward on one side and back on the other. This produces plain tubular fabric,

such as the plain portions of a sock. For turning the heel of a sock the needles of each row which would knit the instep portion are thrown out of range of the operating-cam by their individual adjusting-levers H, so as to be inactive, as indicated in Fig. 25, Sheet 10, and fullness is given to the ball portion of the heel by knitting forward on one side with the active portion of the needles and back on the same side, then forward on the opposite side through the active section of needles and back upon the same side. In knitting the heel as herein described the pattern-cylinder should be turned one step for each round, so that a change of one or more needles can be made on each side for each stroke of the cam G. These changes,except the last mentioned, are controlled by the four switches, and the changes are effected automatically by the pattern-cylinders, as follows: For each of the four switches there is a rocking lever L, Fig. 8, Sheet 6, similar to levers H,which levers L are arranged at the ends of the series. Each lever L has toes that are acted upon by the pattern-cylinder, each such lever having also a slotted spring-arm L, that extends from thesaid lever to and embraces the arm n, which controls the position of the adjacent switch. The sections of the pattern-cylinder operating these levers L are properly laid off as to the timing of the changes in the switches,

I and when the proper point is reached the levers are moved by the pattern-cylinder, the rock-shafts m m are turned through the spring-arms LL, and the switches on and m are moved to divert the paths of the pins jj and give the necessary change in the action of the advancing-cams G G upon the lugs of the needle-jacks. The arms L are made in the form of springs to allow the switches to be yielding, so that the pins jj can readily pass under the same when down.

The retracting-cams G G Fig. 8, Sheet 6, and Fig. 16, Sheet 9, for the needles act immediately after the advancingcams and are made adjustable to prolong or diminish the downward stroke of the said needles to secure a greater or less length of loop, these cams G G respectively, having inclined faces parallel with the adjacent edges of the advancingcams G G and just far enough from the same to allow the lugs of the needle-jacks to pass between. The continuation of the retreating wall of each pair of retracting-cams G G is made at the apex of the corresponding triangular advancing-cam G by an angular lip 0. The sides of each cam G are cut away at the apex, so as to give room for the passage of the lugs 11 between the apex of cam G and the correspondinglip 0, which lip, in consequence offitting nicely the faces of the corresponding pair of retracting-cams G G permits the latter to be drawn down without breaking the continuity of the cam-groove, which is thereby enabled to be made of uniform size throughout. For varying the length of the groove between each of the advancing-cams G and its adjacent pair of retracting-cams G G the latter cams, respectively, are made adjustable in a line parallel with the respective face of cam G. This will vary the distance the needle is drawn backward, and when proper means of adjustment is provided the whole constitutes a means of knitting loose or tight. In making the retracting-cams G G adj ustable they are attached to slides G G which slides are retained in undercut grooves in the bottom side of the corresponding cam-slide G, which grooves are made parallel with the faces of the advancing-cam. To the upper sides of these retracting-cams G G are attached studs p p, Fig. 5, Sheet 5, Fig. 8, Sheet 6, and Fig. 15, Sheet 9, which pass through oblique and converging slots in the slide G and enter also a straight groove in the channeled adjuster-bar M, resting above the slides G. The two bars M M, Figs. 19 and 20, Sheet 10, have in turn studs q q, Figs. 5, 8, 10, and 19, upon their upper sides, which enter oblique grooves in the cam-plates -O 0, Figs. 10 and 21, fixed adjustably to the under sides of the guideblocks N N. When the needles have advanced and are nearing the end of their downward stroke, if a longitudinal movement has been given to the channel-bar M its studs q q in traversing the oblique grooves in the corresponding pair of fixed plates 0 0 will cause the said channel-bar to have a parallel lateral movement in a downward direction, as indicated by the double-pointed arrows, Fig. 8, and this movement, acting upon the studs 1) p of the retracting-cams G throws said cams farther down, as shown in dotted lines, Fig. 16, and by prolonging the downward movement of the needles makes the loops longer, and hence the knitting looser. For varying the length of loops the grooved plates 0 O are adjustably secured to the guide-blocks N N by slots and screws r, Figs. 1 and 4, so that said plates may be adjusted higher or lower along the inclined bed.

The presser-hooks P P, Fig. 24, Sheet 7, are made of curved sections, which are arranged in transverse parallel slots in the cylindrical segmental bar Q, Figs. 5 and 8, and alternate with the needles. The hooked ends of these presser-hooks project slightly into the slot or space a, while their lugs d, projecting from their rear ends above the curved surface of the segmental bar, enter cam-grooves in the hook-actuating cam-slides R B, one of which last reciprocates in guideways 0 0 in the guide'blocks N N on each side of the machine and each of which is provided with tappets ff, Fig. 4., Sheet 4, and Fig. 13, Sheet 8, which are struck by the pins e e on the camslide hereinbefore described. I prefer this con struction of the presser hook to that shown in the patent to Burson and Nelson, dated November 30, 1875, as being more cheaply made, more durable, and especially inasmuch as there is no rod to interfere with the removal of the needles from the needle-plate. These hooks have no pivoted bearings and IIO are adapted to be guided in their motions by their curved seats.

The yarn-carrier S, Fig. 22, is made from a single piece of sheet metal and is formed with parallel and elongated side wings s 8, four horns or latch-openers t t, and a central reinforce-eye it, through which the yarn is threaded. This yarn carrier rests in ways formed in guide-bars s s, Fig. 5, secured to the top of the cylindrical segmental hookbars Q Q, and is reciprocated along such guides parallel with and above the two rows of needles, which last when projected have their latches opened by the horns t t. For moving the yarn-carrier it has upon the extremity of. its two wings upwardly-projecting studs 4; 2), which enter the recessed lugs 20 w of a cross-bar S connecting the two yarn-carrier slides T T, Fig. 5, Sheet 5, Fig. 13, Sheet 8, and Fig. 18, Sheet 10. These slides have ribs or tongues upon both edges of the same, the outer ones of which enter grooved guideplates S S secured upon the tops of the guide-blocks N N, and the inner ones of which enter grooves in the inner edges of the yarn-carrier guides S S. The yarn-carrier slides T T receive their reciprocating motion by the pins 6 e of the cam-slides protruding through slots g g in the cross-plate S which gives them adrag motion. The yarn-carrier frame is formed of two slide-bars T T, connected by the cross parts S and S To provide for the use of several different yarns and to enable me to change them readily, the polygonal wheel U, Fig. 13, Sheet 8, and Fig. 23, Sheet 2, is journaled in an arched support U, Figs. 1, 3, 4, and 13, at one end of the machine. This polygonal wheel has several pairs of guideways w 10', parallel with its axis, which are the same distance apart as the yarn-carrier guides s s, Fig. 5, Sheet 5, so as to receive the wings s s of the yarn-carriers. This enables a plurality of yarn-carriers to be mounted on the said wheel U. To this wheel is attached a disk U having stopperforations 10 10 Fig. 3, into which enters a locking-stud 10 Figs. 3 and 4, to lock the polygonal wheel in a position in which a given pair of the guideways w '20 in the shifter are in direct line with the guideways S S, in which the yarn-carrier reciprocates. This locking-stud is mounted upon an upright bar w, the top of which is bent to form a thumbpiece for disengaging the stud. Just in front of the polygonal wheel is a guard-ring U Figs. 1, 2, 5, and 13, which .is secured adjustably to the upper portion of the machine and is provided with a groove 10 Figs. 1, 4, and 13, into which enter the studs no of all the yarn-carriers contained in the wheel. This guard-ring prevents the yarn-carriers from slipping or jolting out of the wheel and serves also to keep the studs of the yarn-carrier in said wheel in the proper position to enter laterally the recessed lugs to w of the cross-bar S Figs. 5 and 13, whenever said cross-bar is drawn back sufficiently to cause the recesses in the lugs 20 w to register with the groove 10 in said guard-ring. (See dotted lines, Fig. 13.) In constructing the polygonal wheel the series of guideways are made to extend around only a part of its periphery to permit the fabric to be dropped from the needles, as will be hereinafter explained. The guard-ring U has two openings 10 10 leading into the groove 10 which openings are located the same distance apart as the studs on the yarncarrier, which is easily placed in the Wheel when turned so as to agree with these openings and retained therein by the next turn of the wheel. To transfer a yarn-carrier from the wheel-shifter to the recessed lugs of the reciprocating cross-plate S the latter is pulled backed until the recesses in its lugs coincide with the groove 10 of the guard-ring, as in dotted lines of Fig. 13. Vheel U is then turned u ntil the desired yarn-carrier registers with the ways in bars T T, its pins 0 '0 being in recesses 20 w of the cross-bar S Figs. 5 and 18, in which position it will be moved by said bars until shifted out of saidlugs. To change the yarn-carrier from the cross-bar S back to its receiver, the latter being in the position for workingthat is, in range with the ways of bars T T when the yarn-carrier has entered the wheel U it is turned with said wheel out of engagement with the reciprocating bar and another takes its place, if there be one in that part of, the wheel in range with the yarn-carrier ways in bars T T. To throw off the fabric, it is only necessary to turn into range with bars T T that section of wheel U which has no yarn-carrier or no yarn in the carrier, when one reciprocation of the bars operating the needles without yarn drops the fabric from them.

-The pattern-cylinders are two in number when two rows of needles are used, arranged one on each side of the machine, the journals of said cylinders being hung in bearings on the lower edge of plate B. These cylinders are made of a series of rings or disks, Fig. 5, Sheet 5, Fig. 8, Sheet 6, and Fig. 26, Sheet 8, having the desired pattern out upon their peripheries and are fastened together upon a central shaft 1 between two heads I I by bolts I 1 Figs. 1, 5, and 8. These rings or disks are made in pairs, as at 1 1, or 2 2, or.

cylinder but I prefer to place between them alternately disks 1*, with their edges projecting beyond the plates, so as to form grooves between the disks for the guide-toes c c of the rocking lever H to run in, either with or lar fabrics.

without the grooved block H This plan of construction makes a more positive guide for the operating-toes upon the pattern-plates than block H and works with less friction. This pattern-cylinder is readily taken apart to enable the pattern to be changed in part or entirely. To operate these pattern-cylinders, worm-wheels I 1 Figs. 2 and-3, are attached to the same shafts therewith, and a lower shaft I is arranged at right angles to said cylinder-shafts insuitable bearings and is provided with two worms 1 1 which mesh with the two worm-wheels l I and impart motion to the same. To the worm-shaft is attached a crank l for operating it by hand, which crank is provided with a spring stopplate 1 In this machine an effective take'up for the yarn is regarded as a necessity. In providing one for this purpose I erect upon one side of the machine an arm V, Figs. 1, 2, and 3, carrying at the top a short cross-shaft V, to which it is attached by a sleeve and set-screw, a pendent projecting arm V having a series of lugs v t", with perforations through the same. To this arm is attached or upon it is formed a right-angular stud 12 upon which is swung a second threading-arm V having a set of lugs o perforated and slotted like the lugs e '6', but with the slots arranged upon the opposite side. This swinging arm V has its lugs arranged to alternate with the lugs of arm V Fig. l, and the yarn being threaded through the perforations in both sets of lugs the arm V and its set are thrown against the yarn and made to bend it zigzag as it passes through the lugs of the other arm by means of a spring The tension is regulated by passing the yarn through more or less of the lugs. Upon the stud t is also loosely pivoted a flexible wire arm 1%, having at its end a loop, through which the yarn is threaded as it passes from the perforated lugs, and from which point it passes to the yarn-carrier. This flexible arm is held normally in an elevated position by a spiral spring w 1, wound about the stud t and constitutes an elastic take-up for the slack of the yarn when the yarn-carrier changes the direction of its movement at the end of the stroke.

It will be seen from the foregoing description that I regulate the movement of each needle, and hence my machine is adapted to knit all kinds of plain and fancy and irregulVhen the parts herein described are connected with suitable mechanism to render them automatic, it can be applied to a large range of uses.

I claim- 1. The combination of a needle having an upturned shank, a needle-bed having a needle-groove of greater depth than the height of the shank, a separate filler-piece adapted with the needle to fill said groove, and a cover 3 inclosing said groove with the needle and filler-piece therein, as set forth.

2. The combination of a needle having an upturned shank, with a needle-bed having a covered groove for the needle, a filler-piece E, and a jack F engaging with the needle and filler-piece, substantially as set forth.

A loom having a needle-groove and a cover therefor, combined with a needle E, an operating-jack F, and a filler-pieceE, all fitted and adapted to work in the groove and to be inserted and removed in use without removing the cover from the groove.

4. The combination in a knitting-loom with a grooved needle-bed, of a needle having an elevated shank and located in the groove of said bed, a separate filler-piece E, also located in said groove, moving in unison with said needle, and serving to hold the needle firm and true while leaving it free to reciprocate, and means to operate the said needle, substantially as set forth.

5. A grooved needle-bed, a cover for the grooves of said bed having its upper face the segment of a cylinder, provided with grooves concentric therewith and forming seats for presser-hooks P, the presser-hooks P curved to fit said seats and provided with lugs d, and a curved concentric cover for said segment adapted to hold the hooks in place, all combined substantially as set forth.

6. The combination of the segment Q provided with concentric grooves adapted to form seats for presser hooks, presser -hooks 1? formed with lugs d, and bar R formed with a cam-groove therein adapted to operate said hooks in succession by means of said lugs, the said hooks being formed without pivotal bearings and adapted to be guided solely by their curved seats.

'7. The hook-driving cam R having tappets f, f, a distance apart, and yarn-carrier slide T having slot g, combined with needle-slide G having driving-pin e projecting between said tappets and into said slot, to permit lost motion of the hook-driving cam and yarncarrier relative to the needles.

- 8. A yarn-carrier having an upwardly-projecting stud or studs, combined with slide T and the connecting cross-bar S having one or more recessed lugs w, 20, opening at their ends to permit the yarn-carrier to be moved out of engagement with said lug or lugs, and the shifter-frame turning on an axis above and parallel to the needle-rows, and in a direction at right angles to the line of the said slide, substantially as set forth.

9. A series of yarn-carriers combined witl a shifter-frame, and with a holder-ring U having a guide-groove 10 having an open space below to admit the passage of the yarncarriers into and from the same.

10. The needle-cam slide G having two diagonal guide-channels, combined with two cams G Gr fitting into and adjustable along said channels and bearing studs 19,1), slotted pieces 0, an adjustment-bar M having the studs (1, guided in the oblique slots 0 of piece 0 and connecting with said studs 12, p, and an advancer-cam Gr having faces parallel with said channels and forming with the cams therein a camway of uniform width for operating the needles, having its length adjustable to change the length of the stitchloops formed.

11. The channel-bar M movable endwise and sidewise and bearing studs q, combined with stationary plates 0 having oblique slots into which said studs project, and with reciprocating slide Gr bearing adjustable cams G G having studs 19, p, projecting into the channel of bar M, arranged so an endwise movement of bar M will carry it sidewise and move said cams so as to increase or diminish the throw of the needles and length of the stitch-loops in knitting, substantially as set forth.

12. The series of needles E and theirjacks combined with separate operating-levers H, and a cylinder I constituted of separate disks bearing guide-patterns for a series of actions of the needles, held together as shown, and capable of recombination to change the pattern of work, substantially as set forth.

13. The pattern-cylinder I formed of a series of disks, two for each needle, combined with a series of rocking levers I-I having each two working points to engage one with each disk to control the needles according to the patterns on the disks.

14. The pattern-cylinder I formed of a series of disks, having pattern projections to control the needles, and of spacing or guide disks between which the pattern-disks are interposed, substantially as set forth.

15. The pattern-cylinder I formed of a series of disks having pattern projections to control the needles, and of spacingor guide disks of larger diameter between which the pattern-disks are interposed.

16. In a knitting-machine, the combination of a grooved needle-bed, a pattern-cylinder formed of pairs of plates, one pair for each needle, each pair of plates having coacting patterns cut on the peripheries thereof and with each alternate pattern-plate held in line with a groove in the needle-bed, a rocking lever for each needle-bed groove having one foot in line with the needle-bed groove and resting on one pattern-plate and one foot offset to and resting on the companion plate, whereby to control the action of the needles in knitting, substantially as specified.

. 17. The combination of a grooved needlebed, a pattern-cylinder formed of pairs of plates, each pair of plates having coacting patterns cut on the peripheries thereof and with each alternate pattern-plate held in line with a groove in the needle-bed, aguide-plate of greater diameter than the pattern-plates separating the pattern-plates, a rocking lever for each needle-bed groove having one foot in line with the needle-bed groove and resting; on one pattern-plate and one foot offset to and resting on the companion plate,where by to control the action of the needles in knitting, substantially as specified.

18. The combination of the needle-bed, the cam-bar provided with the channels, the retractingcams held in said channels and provided with the studs extending upward through the cam-bar, the channel-bar held on the upper side of the cam-bar and grooved to receive the said studs, and the verticallymovable needle-advancing cam, all substantially as described, whereby the needles may be advanced and retracted by the cam-bar moving in either direction, or left at rest by lifting the advancing-cam above the plane of contact with the needle-jacks.

19. The combination of the needles, and the needle-actuatin g cam-bar G provided with a pin 6, with the presser-hooks, and the hookactuating cam-bar R provided with the tappets f, f, whereby cam-bar R is moved with a drag motion in both directions relative to cam-bar G, substantially as specified.

20. The combination of the yarn-carrieractuatiug bar, the presser-hook-actuating cam-bar, and the needle cam-bar, all connected loosely to each other, whereby a drag motion is given the yarn carrier bar and presser-hook cam-bar, and the relative position of said bars is changed at each reverse movement of the needle cam-bar, substantially as specified.

21. The combination with straight rowknitting mechanism, of a yarn-carrier having an upwardly-projecting stud or studs, and a reciprocating cross-bar provided with a groove adapted to admit and release the yarn-carrier stud or studs by a movement at right angles to the line of reciprocation, and to move the carrier across the needles in both directions, substantially as set forth.

22. In a knitting-machine, a series of needles, one or more yarn-carriers, anda carriertraversing device combined with a shifterframe mounted to turn or rotate on an axis of motion parallel with the needles, and constructed to receive and carry the yarn carrier or carriers.

23. The combination of a series of needles, with two retracting-cams G G the adjustment-bar M whereby the position of said cams is controlled and to adjust said bar M laterally.

24. A reciprocating needle-driving cam G having stud j, bar J, slide G, bar K having two tracks and switches, and a pattern device having means for controlling the position of the switches, substantially as set forth.

25. The hook-driving cam R having two tappets f, f, a distance apart, combined with the needle-cam slide G having a driving-pin 6 less in width than the distance between said tappets, said pin extending between the said tappets, substantially as set forth.

26. A series of needles, a series of yarncarriers, a yarn-carrier track, and a carrier traversing device, combined with the shifterframe mounted to rotate or turn on an axis parallel to the needle-rows and constructed to receive a number of carriers.

ion

27. The combination of the slide Gr having an opening for cam G, with the needle-advancer cam G, the projection or studj connected therewith, bar K having tracks along which the said projection or stud travels, and switches and controlling devices therefor, whereby to determine the track along which the projection or stud shall move.

28. The reciprocating slide G bearing two adjustable retracting-cams G G combined with an adjustment-bar M operatively connected with said cams and means to adjust said bar M laterally, the bar M operating to shift both of the cams G G sim ultaneously in varying the stitch, substantially as set forth.

29. The needle-operating slide G bearing an adjustable retracting-cam, combined with an adjustment-bar M movable endwise and operatively connected with said cam and means whereby the endwise movement of said bar occasions a lateral shift thereof also, to thereby adjust the said retracting-cam, substantially as set forth.

30. The combination of two parallel rows of needles, with two sets of operating-cams therefor, two pattern-cylinders, one for each row of needles, devices intermediate each of said cylinders and the needles of the corresponding row,whereby the individual needles of both rows respectivelyare controlled in their action, two sets of presser-hooks, one for each row, a yarn-carrier adapted to feed yarn to both rows, and means for their joint action consisting of mechanical connections whereby all of these elements will act in combination and the character of the work on the two rows may be separately controlled and tubular work may be done plain, fancy and irregular, and plain and fancy ribbed work may be produced by both rows.

31. The rocking lever for supporting a needie-jack having its slot wider at its extreme end than at its front,substantial1y as set forth, to enable the jack to hold its needle out of action while retracted.

32. In a knitting-machine, the combination with the slide carrying the knitting-cams, an arm pivoted thereto, and a needle-actuating cam supported by said arm, of a bar having two tracks adapted to receive a projection from the pivoted arm, a switch, and means comprising a vertically-movable arm for controlling the switch.

WILLIAM VORTH BURSON.

In presence of- SAML. J. WALLAoE, M. H. BALLINGER.

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