US1047712A - Circular-knitting machine. - Google Patents

Description

APPLICATION FILED AUG. 22, 1908.

Patented Dec. 17, 1912.

4 SHEETSSHEBT 1.

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Q, 7 Wm M R. W: SCOTT. CIRCULAR KNITTING MACHINE. APPLICATION FILED AUG. 22, 1908.

Patented Dec. 17,1912.

4 SHEETS-SHEET 2.

R. W. SCOTT.

GIRGULARC KNITTING MACHINE.

APPLICATION FILED AUG. 22, 190B. 7 1,047,712. Patented Dec. 17, 1912.

4 SHEETS-SHEET 3.

R. W. SCOTT.

CIRCULAR KNITTING MACHINE.

APPLICATION FILED AUG. 22, 190B.

Patented Dec. 17; 1912.

4 SHEETSSHEET 4.

' Leeds ROBERT w. soon, or LEEDS POINT, NEW ASSIGNMENTS, T0 scorn: & WILLIAMS, A CORPORATION or New JERSEY.'

JERSEY, ASSIGNOR, BY DIRECT MESNE INCORPORATED, OF CAMDEN, NEW JERSEY,

CIRCULAR-KNITTING- MACHINE.

Specification of Letters Patent.

Patented Dec. 17, 1 912.

Application filed August-22, 1908. Serial No. 449,777.

To all whom. it may concern Be it known that I, ROBERT W. SOO'I'I, a citizen of the United States, Point, Atlantic county, have invented certain Improvements in Circular-Knitting Machines, of which the following .is a specification.

My invention relates; to that type of circular knitting machines which are intended for the production of seamless hosiery, the object of my invention being to so construct such a machine as to expedite the knitting operation by the use of a plurality of yarn feeds in knitting the tubular portions of the web. This object I attain in the manner hereinafter set forth, reference being had to. the accompanying drawings, in which Figure 1 is a vertical longitudinal section of suflicient of a circular knitting machine to illustrate my present invention, only two of the cylinder needles being shown; Fig. 2

' needles being represented the butts of the needles by heavier lines, and the cams and yarn guides is a horizontal section on the line a a, Fig. 1; Fig. 3 is a top or plan view of certain of the mechanism shown in Fig. 1; Fig. 4 is a representation'of the needle operating cams of the machine developed in a fiat plane, the by single lines,

tion to the needles which they occupy when the machine is knitting round-and-round for the production of tubular web; Fig. 5 is a similar view, illustrating the relation of the needles, cams and yarn guides when the machine has just begun to knit to-and-fro for the production of a seamless heel or toe pocket; Fig. 6 is a similar view of certain of the needles and cams, in the relations assumed by them after round-and-round knitting has been stopped and before to-and-fro knitting has begun, and Figs. 7 and 8 are horizontal sections respectively on the lines bb', and c0, Fig. Lillustrating certain features of the machine not clearly shown in the other views.

In Fig. 1 Of the drawings, 1' represents part of the fixed frame of the which is mounted a fixed cylindrical structure 2, which carries the cams for imparting to the needles the various reciprocating movements required by the knitting operation, the needles being vertically guided as usual in external grooves of the needle cylresiding in- New Jersey,-

shaft of the machine,

bearing the relamachine uponinder e, which is mounted in a tubular holder 4, the latter being secured to, or forming part of, a bevel" wheel 5, which is in mesh with a bevel pinion 6 on the operative said shaft being combined with any of the usual devices for imparting either rotating or to-and-fro motion to it, Which movements are transmitted by means of the bevel gears 5 and 6 to the needle cylinder 3. As an instance of devices available for this purpose I may refer to those shown in the Letters Patent of Scott,

Williams and Swinglehurst, No. 697,953,

dated April 15, 1902.

The needles operate in conjunction with two yarn feeders 7 and 9, the yarn feeder 7 constituting part of, or, being fixedly secured to, frame of the machine, but the yarn feeder 9 being secured to, or -fo ming part of, a ring 11 which is rotatably 0n the ring 10. The yarnfeeder 7 consequently feeds its yarn to the needles at all times during the operation of the machine,

whether the needles are being carried round 1 and-round for the production of tubular web or are being carried back and forth past 'the feeder in the production of a seamless heel or toe pocket.

The yarn feeder 9, being movably mounted on the fixed ring 10, may either feed its yarn is the needles when Occupying a fixed relation to the ring 10, as when the needle cylinder is being rotated for the production of tubular web, or said yarn feeder 9 may bepermitted to-move with the needles, as when the needle cylinder is being reciprocated or given to-and-fro movement during the formation of the heel or toe pocket, in which case the yarn fronLsaid feeder 9 will not be drawn into stitches by the needles but will remain needles.

The use of the two yarn feeds necessitates the presence, in the cam-carrying cylinder 2, of two sets of cams, one set for-operating the needles to cause them to knit at the yarn feed 7 and the other set for operating the needles tocause-them to knit at the yarn feed 9, when the latter is feeding its yarn to the needles.-

The cams are illustrated in --Figs. 4, 5 and a ring 10, rigidly mounted on the quiescent between adjoining mounted in a bearing 6, those cams which are retracted and inopm erative being shaded and those cams which are projected and operative being without shading. For operating the needles in COIlIlGCt-IOII with the yarn feed 7 any ordinary construction and arrangement of cams may be adopted which will serve not only to operate the needles during round-and-round knitting but also to operate them in the processes of narrowing and widening resorted to in the production of 'a seamless heel pocket upon a 'knitted tube. these cams comprise lift cams 12, 13 and 14; depressor cams 15 and 16; a laterally slidable deflector cam 17; guard cams19, 20, 21, 22, 23, and 24; lifting pickers 25 and 26, and depressing pickers 27 and 29, all of these parts being constructed and operating in a manner similar to such construction and operation in, machines now in use. I

As an instance of means available foropcrating the pickers I may refer to those "shown in the Letters Patent of L. N. D.

Williams, No. 774,124, dated November 1, 1904.

The cams which operate in conjunction with the yarn feeder 9 comprise the lift cams 30 and 31, and the depressor cam 32, and in addition to these cams are employed the usual lift cam 33 for raising certain high-butt needlesout of action before beginning to knit the heel or toe pocket, and

the depressor cam 34 for restorin these .high-butt needles toaction again a ter the knitting of the pocket has been completed.

In knitting round-and-round to produce tubular web all of the pickers are out of action as are also the cams 33 and 34, the

' course of the needle butts being represented by the heavy lines in Fig. 4. The needles are consequently drawing stitches at both yarn feeds, two courses of stitches being produced for each revolution of the machine. In changing from roundand-round knitting to to-and-fro knitting for the production of a heel or toe pocket the cam 33 is temporaril projected and the long-butt needles aroun the instep half of the tubular web are raised by said cam 33 to a position above the knitting cams, the cam 33 being then retracted again and the lift-. ing pickers 25 and 26 put into action so as to raise the needles of the fashioning set one at a time for narrowing the web, said lifting pickers being then put out of action and the depressing pickers being put into action torestore the needles in the reverse order in the manner commonly resorted 'to in Imitting seamless pockets on a tubular web, the cam 34 being'temporarily projected-when" thewidening' operation has been completed,

' so as to restore the instep needles to action again, and said cam 34 being then again re In the present instance.

the needles should not form stitches with the yarn from the feeder 9, since the narrowing and widening operations cannot be properly performed if more than one feeder is in action at this time. For this reason I impart to the feeder ring l'l reciprocating or toand-fro movement corresponding with that of the needle cylinder during the time that to-and-fro knitting is being performed, this result being accomplished in the following manner The bevel wheel 5, which drives the needle cylinder, has formed upon it-a spur wheel .35, which meshes with a spur pinion 36 (see dotted lines Figs. 1 and 3) the hub of said 'spur pinion turning loosely upon a shaft 37 and having secured to or formed upon it a clutch member 39 (Fig. i 1) Splined to, but free to move vertically upon,

by an anti-friction roller 43 when said roller 7 is thrust into the path of the cam, the effect of such engagement being to lift the clutch member 40 free from engagement with the .clutch member 39 and thereby arrest the movement of the shaft 37. Withdrawal of the anti-friction roller from engagement with the cam 42 permits the spring 41 to thrust the clutch member 40 into engagement with the clutch member 39 and thereby efi'ect movement of the shaft 37. I I The anti-friction roller 43 is carried by a sliding stud 44 (Fig. 2) which is guided in a suitable bearing on the fixed frame and has a pin 45 which passes through a slot 46 in the bearing and is engaged by one arm of a bell'crank lever 47 pivoted upon said bearing, the other arm of said'bell crank lever being connected by a rod 49 to any suitable device actuated by a pattern chain or drum, whereby the anti-friction roller 43 can be thrust into or drawn out of engagement with the cam 42 at the proper times.

The shaft 37 carries, atits upper end, a spur pinion 50 which meshes with a spur wheel 51 mounted so as to be free to rotate on the ring 10 which carries the feeder ring 11, and said feeder ring has secured to it a bracket 52 with projecting pin 53, the latter entering a cam slot 54 in a swinging plate 55, pivoted upon the spur wheel 51, as shown in Fig. 3, and connected, by a link 56, to a lever 57 likewise pivoted upon the spur wheel, as shown in Fig. 3[

to-and-fro knitting is effected and during all of the to-and-fro movements of the needle. cylinder the clutch members 39 *and 40 will be in engagement and corresponding to -iand} fro movement will, through the medium of;

the gearing described, b imp r yto spur wheel 51 and consequently to the feeder ring 11, because of the connection between said spur wheel and feeder ring provided by the swinging plate 55. The feeder 9 will, therefore, during the production of the pocket upon the knitted tube, have to-andfro movement with the needles of the needle cylinder, and the latter will not draw stitches of the yarn provided by said feeder, but as soon as round-and-round knitting is about to be resumed the anti-friction roller 43 will be thrust into engagement with the cam 42, the clutch members 39 and 40 will be disengaged and the movement of the feeder ring 11 will be arrested, the feeder 9 now feeding its yarn to the needles in the same manner as the fixed feeder 7.

During the reciprocating or to-and-fro movement of the needle cylinder it is advisable to render inoperative the cam 32, which, during the production of tubular Web, acts upon the needles and causes them to draw stitches of the yarn from the feeder 9 and also to render inoperative the web holders G0 which normally operate in connection with the needles actuated by the cam 32.

' In the absence of provision for rendering the cam 32 inoperative during to-and-fro knitting, some of the needles of the fashioning set might be depressed thereby so as tocast their stitches. The means for effecting the retraction of the cam 32 are shown in Figs. 1, 2 and 7, and are as follows:

A lever 61, pivoted to a bracket 62 on the cam cylinder 2, is operated at the desired intervals by the pattern drum or chain act-,

ing through the medium of a connecting rod 63. and said lever has a slot 64 for the reception of a pin 65, which projects through a slot 66 in the bracket 69 and is carried by a stud 67 projecting outwardly from the cam and guided in said bracket as shown in Fig. 7, whereby, when the lever 61 is moved in one direction. the cam 32will be retracted, and when said lever 61 is moved in the opposite direction, said cam 32 will be projected.

The pin 65 is bent and projected upwardly from the lever 61 and its upper end is connected by a link ()8 to a cam plate (59 pivoted on top of the web-holder cam-ring "TO and having a cam slot 71 which engages a pin 72 projecting upwardly from the web holder retract-ing cam 73 (Fig. 8) the latter being pivotally mounted on the ring '70 and the parts being so constructed and arranged that when the cam is retracted, so as to fail to depress the needles, the cam 73 will. be swung forward and will not retract the web holders 60.

The last needle which was active in roundand-round knitting will be carried forward beyond the yarn guide 9 to the extent of the distance between said yarn guide and the lower end or point of the depressor cam 32,

number of these high-butt needles raised in advance of it, the yarn from said feed 9 will, when said high-butt needles are re stored to action, engage and close the latches of some or all of them, and thereby cause such needles to cast their stitches. This special forward movement is accomplished by means of the cam plate 55, a disk 75. operated at appropriate times by the pattern mechanism, striking the lever 57 and causing movement of the cam plate 55 in the direction of the arrow 00, Fig. 3, shortly after the spur wheel 51 begins to move in the di rection of the arrow '1, Fig. 3. This movement serves to adjust the yarn feed 9 to a position just in advance of the first of the raised high-butt needles, as shown in Fig.

4, which position it retains during its toand-fro movement with the needles.

In orderto again give the yarn feeder 9 its proper lead in respect to the cam 32 before resuming round-a'nd-round knitting. the disk 7 5 is dropped just before the spur wheel 51 is completing its last reciprocation. said disk then act-ing directly upon the outer cam-like face of the plate 55 to push the same inward and thereby move the yarn M feeder ring 11 backward to the same extent that it was originally drawn forward.

The cam slot 54 is so formed that it will I, lock the yarn feed carrier ring 11 in post; 1 5 tion in respect to the driving wheel 51 whenj the cam plate 55 is in either of its extreme positions.

If the yarn guide 9 is moved backward while the high-butt needles between its twb 119 positions are still raised, there will be tbs; same tendency for its yarn to engage an v close the latches of some or all of saidneedles, and cause them to cast their stitches when they are again drawn down to operative position by the cam 34. I

I therefore provide a certain number of the high-butt needles at the forward end of the set with depending jacks 76, having butts 7? for the action of a special depres- 129 sion cam 79. located below the main cams, as shown in Figs. -1 and 5, this cam serving to draw down those needles located between the two positions of the yarn guide 9. before the latter has been moved from its advanced po- 13:: sition to its rear or normal position.

The cam 79 has. like the cam 32. a projeeting stud 90 guided in a bracket 91 on the cam cylinder 2 and provided with a pin 92 which is engaged by a lever 93 operated 1a:

1. A circular knitting machine having am needle-carryingcylinder, means for imparting both rotary and to-and-fro movements to said cylinder, a'plurality of sets of, cams for operating the needles, a yarn feed, means for retaining the same in fixed position in respect to the cylinder during roundandround knitting, and means for permitting said yarn feed to move with the cylinderduring to-and-fro knit-ting.

2. A circular knitting machine having a needle-carrying cylinder, means for imparting both rotary and to-and-fro movements to said cylinder, a plurality of sets of cams for operating the needles, a yarn feed, means for retaining the same in fixed position in 5 respect to the cylinder during both roundand-round knitting and to-and-fro knitting, a second yarn feed, and means for permitting said yarn feed to move with the cylinder during to-and-fro knitting.

3. A circular knitting machine having a needlecarrying cylinder, means for imparting both rotary and to-and-fro movements to said cylinder, a plurality of sets of cams for operating the needles, a yarn feed, means 35. for retaining the same in fixed position in respect to the cylinder during both roundand-round knitting and to-and-fro knitting, a second yarn feed, means for retaining the same in fixed position in respect to the cylinder during round-and-round knitting, and

means for permitting said yarn feed to move with the cylinder during to-and-fro knitting. 4. A circular knitting machine having 'a needle-carrying cylinder, means for impart- 45,ing both rotary and to and-fro movements to said cylinder, a plurality of sets of cams for operating the needles, a yarn feed, means for retaining the same in fixed position in respect to the cylinder during round-anoround knitting, means for permitting said yarn feed to move with-the cylinder during to-and-fro knitting, and means for moving to operative and inoperative positions the cams which cooperate with said yarn feed,

5. A circular knitting-machine having a needlecarrying cylinder, means for imparting both'rotary and to-and-fro movements to said cylinder, a yarn feed, means for retaining the same in fixed position in respect to the cylinder during both round-andround knitting and to-and'fro knitting, a second yarn feed, means for retaining the same in fixed position in respect to the cylinder during roundand-round knitting, means for permitting said yarn feed to move with the cylinder during to-and-fro knit-ting, cams cooperating with the first yarn feed during both round-and-round knitting and to-and-fro knitting, cams'cooperating with the second yarn feed during round-andround knitting, and means for moving said cams to inoperative position during to-andfro knitting.

6. A circular knitting machine having a.

cooperating with the first yarn feed and acting upon the needles during both roundand-round knitting and to-and-fro knitting, cams cooperating with the second yarn feed during round-and-round knitting, and needle'pickers operating in connection with the first set of cams during to-and-fro knitting whkereby a pocket is formed npon the knitted we 7. A circular knitting machine having a needle-carrying cylinder, means for imparting both rotary and to-and-fro movements to said cylinder, a yarn feed, means for retaining the same in fixed relation to the cylinder during both round-and-round knitting and to-and-fro knitting, a second yarn feed, means for retaining the same in fixed relation to the cylinder during round-andround knitting, means for permitting movement of said second yarn feed with the cylinder during to-and-fro knitting, cams cooperating with the first yarn feed and acting upon the needles during both round-andround knitting and to-and-fro knitting, cams cooperating with the second yarn feed during round-and-round knitting, needle pickers operating in connection with the first set of cams during to-and-fro knitting whereby a pocket is formed upon the knitted web, and means for rendering inoperative during tO-rfifldfI'O knitting the cams which cooperate with the second yarn feed.

8. A circular knitting machine having a needle-carrying cylinder, means for imparting both rotary and to-and-fro movements to said cylinder, cams for operating the needles, a plurality of yarn feeds, and means for permitting to-and-fro movements of one of said yarn feeds with the cylinder.

9. circularknitting machine having a needle-carrying cylinder, means for imparting both rotary and to-and-fro movements to said cylinder, cams for operating the needles, a plurality of yarn feeds, means for retaining one of said yarn feeds in fixed position in respect to the cylinder during to-and-fro movement of the latter, and means for permitting movementof the other yarn feed with the cylinder during such to-and-fro movement.

' 10. A circularknitting machine having a needle-carrying cylinder, means for imparting both rotary and tc-and-fro movements to said cylinder, needle-actuating cams, a plurality of yarn feeds, means for permitting one of said yarn feeds to move with the cylinder during to-andfro movement of the latter, and means for rendering inoperative, during such to-and-fro movement of the cylinder, the cams which cooperate with said movable yarn feed.

11. A circular knitting-machine having a needle-carrying cylinder. means for imparting both rotary and to-and-fro movements to said cylinder, a plurality of yarn feeds, means for permitting one of said yarn feeds to partake of the to-and-fro movement of the cylinder, knitting cams for operating the needles in connection with said movable yarn feed, web holders cooperating with the needles atthe point where they are actuated by said knitting cams, web holder cams, means for rendering said web holder cams operative and inoperative, and means for rendering said needle actuating cams operative and inoperative.

12. The combination, in a circular knitting machine, of the needle carrying cylinder, means for imparting both rotary and to-and-fro movements to said cylinder, a plurality of yarn feeds, means whereby one of said yarn feeds is permitted to partake of the to-and-fro movement of the cylinder, knitting cams for actuating the needles in connection with the latter yarn feed, web holders co-acting with the needles at the point where they are actuated by said knitting cams, means for moving said knitting cams to operative and inoperative position, and means for moving the web holder cams to operative and inoperative position simultaneously with the movement of the knitting cams.

13. A circular knitting machine having a needle-carrying cylinder, mechanism for imparting both rotary and to-andfro movementsto said cylinder, a plurality of yarn feeds, a carrier for one of said yarn feeds susceptible of to-and-fro movement with the cylinder, a plurality of sets of cams for operating the needles, and mechanism including a clutch, whereby said movable yarn feed carrier can be coupled to or disconnected from the cylinder driving mechanism.

14. A circular knitting machine having a needle-carrying cylinder, mechanism for imparting both rotary and to-and-fro movements to said cylinder, a plurality of yarn feeds, a carrier for one of said yarn feeds susceptible of to-and-fro movementwith the cylinder, cams for operating the needles,

mechanism, including a clutch, whereby the movable yarn feed carrier can be coupled to or disconnected from the cylinder driving mechanism, a cam connected to one member of said clutch and a clutch-disengaging device movable into and out of operative relation with said cam.

15. A circular knitting machine having a needle-carrying cylinder, mechanism for imparting both rotary and to-and-fro movements to said cylinder, a plurality of yarn .is free from the control of said disengaging device.

16. The combination, in a circular knitting machine, of a needle-carrying cylinder, means for imparting both rotary and toand-fro movements to said cylinder, a plurality of yarn feeds, means for causing one of said yarn feeds to partake of the to-andfro movement of the cylinder, cams for operating the needles, and means for shifting the movable yarn feed to a limited extent circumferentially in respect to the needles independently of its to-and-fro movement with the cylinder.

17. The combination, in a circular knitting machine, of a cylinder carrying needles some of which produce the instep portion of a stocking, means for imparting both rotary and to-and-fro movements to said cylinder, means for rendering the instep needles inoperative before to-and-fro knitting is begun, a plurality of yarn feeds, means for causing one of said yarn feeds to partake of the to-and-fro movement of the cylinder,

cams for operating the needles, and means for imparting movement to the movable yarn feed to locate it immediately in advance of the first of the set of instep needles.

18. The combination, in a circular knitting machine, of a cylinder carrying needles some of which produce the instep portion of a stocking, means for imparting both rotary and to-and-fro movements to said cylinder, means for rendering the instep needles inoperative before to-and-fro knitting is begun, a plurality of yarn feeds, means for causing one of said yarn feeds to partake of the to-and-fro movement of the cylinder, cams for operating the needles, and means for moving said movable yarn feed to a po sition immediately in advance of the first needles during of the set of instep needles before beginning to-and-fro knitting and for restoring it to its normal osition before beginning roundand-round itting.

19. The combination, in a circular knitting machine, of a cylinder carrying needles some of which produce the instep portion of a stocking, means for imparting both rotary and to-and-fro movements to said cylinder,

0 mal position when to-and-fro knitting has been completed, and means for restoring a certain number of the instep needles at the beginning of the set to operative position in advance of the act-ion of the main restoring devices.

20. The combination, in a circular knitting machine, of a cylinder, carrying needles some of which produce the instep portion of a stocking, means for imparting both rotary and to-and-fro movements to said cylinder, means for rendering the instep needles inoperative before beginning to-and-fro knitting and operative on resuming round-and-round knitting, certain of said needles at the beginning of the set having depending jacks, a plurality of yarn feeds, means for causing one of said yarn feeds to partake of the toand-fro movement of the cylinder, means for so moving said yarn feed that it occupies a different relation to the instep needles during to-and-fro knitting than during round-and-round knitting, cams for operating the needles to cause them to knit, and a cam for acting upon the instep needle jacks to restore to operating position the needles provided with said jacks in advance of the restoration of the remaining instep-needles to operative position.

21. The combination, ina circular knitting machine, of a cylinder, carrying needles some of which produce the instep portion of a stocking, means for imparting both rotary and to-and-fro movement to said cy-linder, means for rendering the instep needles inoperative before beginning toand-fro knitting and operativeon resuming roundand-round knitting, certain of said needles at the beginning of the set having depending jacks, a plurality of yarn feeds, means for causing one of said feeds to partake of the to-and-fro movement of the cylinder, means for so moving said yarn feed that it occupies a different relation to :the instep to-and-fro knittingthan during round-an round knitting, cams for op" crating the needles to cause them to knit, a cam for acting upon the instep needle jacks to restore to operative position the needles provided with said jacks in advance of the restoration of the remaining instep needles to operative position, and means for moving the latter cam into and out of operative relation with the needle jacks.

22. The combination, in a circular knitting machine, of a needle-carrying cylinder, mechanism for imparting both rotary and to-and-fro movements to said cylinder, a plurality of sets of knitting cams, a plurality of yarn feeds, one of which has a carrier susceptible of to-and-fro movement with the cylinder, a member geared to the cylinder driving mechanism so as to partake of the to-and-fro movement of the latter, and a connection between said member and the movable yarn feed carrier.

28. The combination, in a circular knitting machine, of a needle-carrying cylinder, mechanism for imparting both rotary and to-and-fro movements to said cylinder, a plurality of yarn feeds, one of which has a 1 carrier susceptible of to-and-fro movement with the cylinder, cams for operating the needles, a member geared to the cylinderdriving mechanism so as to partake of the to-and-fro movement of the latter, and a connection between said member and the movable yarn feed carrier, said connection being susceptible of change in the relation of its parts to permit of a limited movement of the movable yarn feed carrier independently, of its driving member.

24. The combination, in a circular knitting machine, of a needle-carrying cylinder, mechanism for imparting both rotary and to-and-fro movements to said cylinder, a plurality of yarn feeds, one of which has a carrier susceptible of to-and-fro movement with the cylinder, cams for operating the needles, a member geared to the cylinderdriving mechanism so as to partake of the to-and-fro movement of the latter, and a connection between said member and the movable. yarn feed carrier, said connection having, as an element, a cam plate engaging a projection on the yarn feed carrier, and

serving, by its movement, to shift said yarn driving mechanism so as to partake of the 'to-and-fro movement of the latter, and a connection between said member and the movable yarn fee'd carrier, said connection needle-carrying cylinder. mechanism for imparting both rotary and to-and-fro movements to said cyl1nd'er, a plurality of yarn feeds, one of which has a carrier susceptible of to-and-fro movement wit-h thecylinder, cams for operating the needles, a member geared ,to the cy-linder driving mechanism,

a cam plate connecting the movable yarn feed carrier to said driving meniber, a lever connected with-said cam plate, and a single operating device. whereby said cam plate is moved in one direction, and, through the .medium of the lever, in the opposite direction;

27. A circular knitting machine having needle and cam carriers, means for reciprocatory knitting comprising means to oscillate one of said elements with respect to the other. a plurality of yarn feeds normally fixed with respect to the knitting cams, and means for causing one of said yarn feeds to become movable with respect to the knit: ting cams and fixed with respect to the needle cylinder.

28. In a knitting machine, a needle carrier, a knitting cam carrier having a plurality of stitch cams, a plurality of yarn feeds respectively cooperating with the stitch cams, means for causing movement of oscillation first in one direction and then in/the opposite direction between the needle carrier and the'cam carrier, and means to cause one of the yarn carriers to remain fixed with respect to the needle carrler during said oscillating movements.

29. In a knitting machine having independently movable needles, means to cause" a plurality of waves of motion of said needles, yarn guides to supply yarn at each of said waves, and means to cause one of said yarn guides to remain laterally fixed with, respectto a certain needle.

30. In a knitting machine having independently movable. needles, means to operate said machine for either rotary or'to-and-fro knit-ting, means to cause a plurality of waves of motion in said needles during rotary knitting, yarn guides to supply yarn at each of said waves, and means to cause one of said yarn guides to remain laterally fixed with respect to a certain needle during to-and-fro knitting.

31. In a knitting machine having independently movable needles, means to cause either rotary or to-and-fro knitting, means to cause a. plurality of waves of motion in said needles during rotary knitting, and a singlewave in a portion of the needles during to-and-fro knitting, yarn guides supplying yarn at each of said waves during rctary knitting, one of said yarn guides also supplying yarnat the wave during to-andfro knitting, and means causing the inoperative yarn guide during the latter knitting to remain laterally fixed with respect to a certain needle.

32. The combination, in a circular knitting machine, of a needle cylinder, a cylin-' der carrying needle-actuating cams, means for operating said parts so as to cause either rotary or 'to-and-fro knitting, a plurality of yarn feeds, means for causing to-and-fro movement of one of said yarn feeds during to-and-fro knitting, and means for shifting said movable yarn feed to alimited extent circumferentially in respect to the needles independently of its to-and-fro movement.

33. The combination, in a circular knitting machine, of a cylinder carrying needles, some of which produce the instep portion of the stocking, a cylinder carrying cams for actuating said needles, means for operating said parts so as to produce either rotary or to-and-fro knitting.- means for rendering the instep needles inoperative before to-and-fro knitting has begun, a plurality of yarn feeds, means for imparting to-and-fro movement 'to one of said yarn feeds during to-and-fro to-and-fro knitting, means for rendering the instep needles inoperative before to-and-fro knitting has begun, a plurality of yarn feeds, means for imparting to-and-fro movenient to one of said yarn feeds during toand-fro knitting, and means for imparting movementto said movable yarn feed to locate it immediately in advance of the first of the set of instep needles .before beginning to-and-fro knitting, means for rendering the its normal position before beginning rotary knitting.

35. The combination, in a circular knitting machine, of a cylinder carrying needles, some pf which produce the instep portion of the stocking, a cylinder carrying cams for actuating said needles, means for operating said parts so as to produce either rotary or to-and-fro knitting, means for rendering the instep needles inoperative before beginning to-a-nd-fro knitting and operative onresuming rotary knitting, a plurality of yarn feeds, means for imparting to-and-fro movement to one of said yarn feeds during toand-fro knitting, means for adjusting-said movable yarn feed to a position in advance of the instep needles at the beginning of toand-fro knitting,means for again restoring said yarn feed to its former position when to-and-fro knitting has been completed, and means for restoring certain of the instep needles at the beginning of the set to opera tive position in advance of the act-ion of the main restoring devices.

36. The combination, in a circular knitting machine, of a cylinder carrying needles, some of which produce the instep portion of the stocking, a cylinder having cams for actuatingsaid needles, means for operating said parts so as to produce either rotary or to-and-fro knitting, means for rendering the instep needles inoperative before beginning to-and-fro knitting and operative on resuming rotary knitting, certain of said needles at the beginning of the set having depending jacks, a plurality of yarn feeds, means for imparting to-and-fro movement to one of said yarn feeds during to-and-fro knitting, means for so moving said yarn feed that it occupies a different relation to the instep needles during to-and-fro knitting than during round-and-round knitting, and a cam for acting upon the instep needle acks to restore to operating position needles provided with said jacks in advance of the-restoration of the remaining instep needles to operative position.

37. The combination, in a circular knitting machine, of a cylinder carrying needles some of which produce the instep portion of the stocking, a cylinder having cams for actuating said needles, means for operating said parts so as to produce either rotary or to-and-fro knitting, means for rendering the instep needles inoperative before beginning to-and-fro knitting and operative on resuming rotary knitting, certain of said needles at the beginning of a set having depending jacks, a plurality of yarn feeds, means for imparting to-and-fro movement to one of said yarn feeds during to-and-fro knitting, means for so moving said yarn feed that it occupies a different relation to the instep needles during to-and-fro knitting than during rotary knit-ting, a cam for acting upon the instep needle jacks to restore to operative position the needles provided with said jacks in advance of the restoration of the remaining instep needles to operative position, and means for moving the latter cam into and out of operative relation with the needle jacks.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses,

ROBERT W. SCOTT.

Witnesses: 1 I

HAMILTON D. TURNER, .KATE A. BEADLE.

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