US1779237A - Mechanism for knitting plated fabric - Google Patents

Description

Oct. 21,l 1930. H. E. HousEMAN MEGHANISM FOR KNITTLNG PLATED FABRIC iled July 29, 192,7 '4 Sheets-Sheet l Oct. 21, 1930. H. E. HousEMAN 1,779,237

MECHANISM FOR KNITTING PLATED FABRIC .filed July 29, 1927 4 Sheets-Sheet 2 www Cet. 21, 1930. H. E. Housl-:MAN

MECHANISM FOR KNITTING PLATED FABRIC .filed July 29, 1927 4 sheets-sheet 5 .33 l fc/G f.

l VVE/NW? iwf/v5.55: Haro/o 5 Hause/raar? Oct. 2l, 1930. H. E. HousEMAN 1,779,237

MECHANISM FOR KNITTING PLATED FABRIC v l .filed July 29, 1927 4 sheets-sheet 4 Alaire-naal ocr.- 21, 1930 ,UNITED STATES ..PATENE ori-ICE finnois: n noUsmuN, or EDGE noonpEnawAEE, assIGNon niermann-'ram Enos. mcnnm comm, or. wnxnacron, DELAWARE, A conrorwrron or DELAWARE nommen 1701;.- xm'r'rme rLarEn rame l application mea m'y as, 19:7. serial nu. 909,382'.

Ina-n a Houseman,

mittent stripes or figuredell'ects. Yarn is fed to a circle of needles in such relation as' will cause the needles, when in normal osition, to knit regular plated fabric. f en selected needles are pushed back, the vneedles will knit'th'e yarn in a reversed relationship and thus produce reverse Y lated fabric in the wales knit by such nee es 4while they are pushed back. Thepresent invention comprises automatic pattern-controlled mechanism particularly adap1 ed for actuating the mechanism set fort in the Wilbur L. Houseman application. i.

29 A preferred embodiment of my invention is shown in the accompanying drawings, in

which- Fig. 1 is a plan view of a knitting machine `to which the invention has been applied, the fi' re embodying also a general view of some o the elements of my'invention. f Fig; 2 isa side elevation'of the-parts shown inF1g.1. .f

' Fig.` 3 is a plan view of that part ofthe machine that embodies my -invention.

Fig. ,2l=v is an end view of the mechanism shown in Fig. 3. Fig. 5 is a section through Fig'. 3 on the line 5` 5.' Fig.' 6 is a section on the line 6-6 of Fig. 3

showing'a part of the needle cylinder an `of the means for selectively pressing back needles, said means being/set forth in said- Wilbur L. Houseman application.

' Fig. 7 is a'detail view of one of the needle presser actuating jacks of Fig. 6.

Fig. 8 is a detail view of the upper ends of two needles, one in normal position to knit .regular plated fabric and the other pressed back into position to knit reverse plated fabric. f i

Figs. 9, 10 and 11 are detail views, in diere'nt positions, of the lever mechanism lconstitutin part of my invention.

I shall 1rst describe themechanism for selectively pressing back needles devised by :Wilbur L. Houseman and illustrated in Figs. 6, 7` and 8, and shall then describe the pattern-controlled means that I have devlsed for actuating said mechanism automatically.

Vertically slidable in slots of the revolving needle cylinder a are the needles b which are movable up .and down in anormal knitting wave by cams not shown. .Fastened to the needle cylinder is the sinker dial 0, which carries the'sink'ers or web holders b', which cooperate with the needles in the usual manner to-form the stitches.

Below the sinkerdial c is a slotted jack dial d, which is attached to the sinker dial. Press- -erse are plcaed in' the needle cylinder slots after the needles have been inserted and are held in place by the two spring bands 60. These pressers are so shaped that they bear against the needles at the extreme upper ends of the pressers and also at points opposite the spring bands 60. The needle cylinder slotsare of greater than normal depth at their upper ends, forming shoulders 62. The needles are unsupported above these shoulders, which act as fulcrums when needles are l .pushed back by the upper ends of pressers e. The jack dial d has slots corresponding in .number with the slots in the needle cylinder.

At intervals and in groups in accordance with a knitted fabric, jacksf are inserted in the dial slots. These jacks are held lightly in contactv with their corresponding needle pressers e lby a spring band 61.

pattern which is to be formed in the A threaded clamp ring h holds the jacks'in their propervertical position. The jacks are formed with slots on their rear ends so that sections may be broken out in dierent places leavin butts f which may be in any one of eight ifferent vertical positions. If desired, .there may be two or more butts on a Jack.

The one illustrated in Fig. 7 has butts in all eight plositions, whereas the one shown in Fig. 6 as a butt in the second highest posi.- tion. v

The ei ht cams gv g1, g2 g. g g5, gea g1, d0 not revo ve and may be moved into or out of the ath of the butts of the jacks f, each of the eig At cams being in alignment with one rock them in a clockwise direction, so that extensions la on these levers will ride u on of the corresponding eight butt locations on the jacks.

When one or more of the eight cams g, g1, g2, g3, g, g, g, g?, are moved and held in the path of the jacks having butts corresponding to the vertical positions of such cams, these jacks will be pushed inward and will in turn rock the corresponding pushers e, thereby springing the corresponding needles at the fulcrum point 62, causing their hooked ends to be set back out of line with the adjacent unpushed needles.

I shall now describe the mechanism-which I have devised to selectively render the` 'ack cams g, g1, etc., active or inactive to pr uce figured reverse plated effects.

In Fig. 3, these cams are shown pivoted on a stud 50. Pivoted on a stud i, which is'on a bracket attached to the-machine frame, are eight levers j, one foreach of the cams g, g1, etc., and in vertical alignment with said cams. Springs Z, one for each lever, tend to similar extensions on the jack cams, ren ering said cams active by pushing them toward the jack dial and thus in the path of butts on the jacks. Adjusting screws m, one for each lever, enable a fine adjustment of the pushing cams to be made so that needles will be sprung back just the proper distance. Levers y' have slotted holes where they pivot on stud i so that they will move toward or from the jack cams when screws m are adjusted. The sides of these levers where they bear against screws m are curved so as to follow a true radius from stud z'.

Pivoted on stud 51 in alignment with the eight levers j are eight stepped levers n, 11.1, etc., one for each lever j. When these levers n, nl, etc., are rocked in a clockwise direction, their corresponding levers j are moved in a counter-clockwise direction, whereby shoulders k disengage the projections on the corresponding jack cams g, g1, etc., thereby ren dering said cams inoperative. When, however, levers n, n1, etc., are rocked in the opposite direction, the ends of levers n, nl, etc., fall into recesses in their corresponding levers j, thereby permitting springs Z to function to render said levers j active to push correspending jack cams into operative position.

From the foregoing, it will be seen that the swinging of levers n, 11,1, etc., in one direction or the other will determine whether corresponding levers j and jack cams shall be inoperative or operative. I shall now describe the means employed for positively moving the levers 1L, 11,1, etc.

Pivoted on a stud fastened to the frame of the machine are eight bell crank levers 1',

' r1, etc., (see Figs. 3, 4, 9, 10. and 11). These levers are in two groups of four each, being spaced apart by a sleeve a (see Fig. 4), and

their long ends are curved to embrace each of the stepped levers 11 11,1, etc. As the ends of the levers n, 11.1, etc., are formed with up er and lower cam faces, levers 1', 11, etc., w en moved forward will slide up and beyond the upper cam faces and rock levers 111,11), etc., in a counter-clockwise direction and hold them in this position. When levers 1, 11, etc., are moved in the opposite direction, levers n, 11,1, etc., will be moved in a clockwise direction, through the action of said levers 1', 11, sliding along the lower cam surfaces of levers n, 11,1, etc.

The movement of the levers 1', 11, etc., back and forth is limited by apin p extending through aligning holes in the levers. Levers 1', 11, etc., which, as before mentioned, consist of an upper set of four and a lower set of four, are operable respectively by eight levers t, t1, etc., .which are also grouped in upper and lower sets of four each. These levers t t1, etc., are pivoted between their 9 against al sto 'v on lever 30 by means of a spring lw. Inf igs. 10 and 11, to avoid confusion, only two sets of levers 1t, nl, 1*, 11, and t, t1 are shown. .In Figs. 4 and 5 the groups of these levers are illustrated.

Each of the levers t, t1, t2 and t3 of the top group is operated b 'a selector A20, which 1s movable laterally, y means to be hereinafter described, and vertically as shown in dotted lines, Fig. 5, to selectively actuate any of said levers. A similar selector 21 operates in identically the same manner to selectively operate each of the levers t4, t5, t and t7 of the lower group.

Let it be assumed that all of the eight jack cams g, g1, etc., are inactive and that it is desired to render the to and thatlevers t, 1, 1r, and 7 are adapted to effect this shift. Selector 20 is moved into alignment with lever t while lever 30 is moved forward (that is, in a downward direction in Figs. 9, 10 and 11). In the backward or upward movement of lever 30, lever t contacts with selector 20 before lever 30 completes its movement, and during the completion of the upward movement of lever 30, selector 20 presses lever t down from its normal position (the upper dotted line position in Fig. 10) to a somewhat lower position (the other dotted line position in Fig. 10), during whichy limited downward movement of lever t, it contacts with the extreme tip of lever 1 and thereafter snaps over it; the selector 20 (which is held in operative position by a spring 22 that is stronger than spring w) yielding slightly to allow lever t to yield suiciently to enable it to clear the tip of cam g activev thereb carryin lever t out of'contact with the se ector. hereupon, as lever continues to move down, lever r hasta cam action),A on lever t'andswings it against the ull of.

ycompletion o the downward movement of lever 30, lever t is confined between lever r and stop av, andexerts a positive cam action on lever 1' and tiltsl it down on its axis, as shown in Fig. 11, thereby swinging lever n into position to release lever j, which is' swung by its spring l to render jack vcam active. In the upward'movement of lever 30, lever t will release lever r, and if selector 20, in the meanwhile, has been shifted,.lever t will be retracted, by its spring 1p, to the position shown in Fig. 9; but lever r will not be retracted because its end has moved beyond the upper cam angle on lever n. It is desired that lever r shall maintain its advanced pgsition until another chain of levers shall actuated by the selector 20, and that lever r shall be retracted at the same time that another lever r1, r2 or r is advancing. This is accomplished by causing any of the levers `t, t1, t2 or ts in the movement by which it ac lvances its corresponding lever r, r1, r or r to swingthe other levers t, t1, t, t in the group, lnto position to retract any of the levers 1', r1, r2, or 1' that may be in advanced position.

To make this operation clear letit be assumed 'that leverr1 has been advanced, that lever 30 is in the down position (Fi 10), that lever t is in the position shown in gig. 9, that selector 20 is shifted to align with lever t, that lever 30 moves u that lever t contacts'with the selector 'an is thereby moved a. short distance, that lever 30 starts to move down, that lever t snaps over lever r, and that aslever 30 completes its down movement,4

lever 7- is advanced-all as hereinbefore explained. It will be observed,'by reference to Fig. 9, that each lever t, t1, t2 and t is forked at one end thereof, that stop lv acts to limit the movement in one direction of levers t, t1, t2 and t by contacting with the lower fork, and that on the shaft carryin levers t, t1, t2 and t3 is pivoted an arm provi ed with a pin s, which engages the upper fork of any of the levers t, t1, t and t that is in its normal position. Assuming that, as above described, lever 30 is completlng its downward movement and that lever t is swinging from the sition shown in Fig. 10 to that shown in ig. 11. In Fig. 10 it will be observed that the lower fork of lever t has contacted with pin z. Therefore, as lever t swings from the position shown in Fig. 10 to the position shown in Fig 11, its lower fork actuates pin z. Pin z contacts with the up er forks ofthe other levers t1, t and t3 an yswings them into theA ition in which lever t1 is shown in Fig. 11. f, as above assumed, lever r1 vis in its advanced position, lever t1 will contact with lever rl and swin it into the osition occupied by lever r1 in ig. 11, there causing the ar end of lever r1 vto slide onto t e under cam face of lever n1 at the same time thatl the near end of lever "r is riding down below the u per cam face of lever n. The retraction of `over r1 willthus, through lever n1 and the lcorres nding lever j render jack cam 1l.inoperative, whereas the simultaneous a vancement of`lever 1- will, through lever n and the corresponding lever( j throu h the action of the corresponding spring render jack cam g operative.

As above mentioned, levers t, t1, t and t' are s aced above the lower group t", t, t and t', t e upper oup being controlled by selector 20 and the owerfgroup by selector 21.

"Ihese selectors are operated by separate pattern mechanisms to be hereinafter described, 4so that a selection may be made in either the up r or lower groups independently or, if dsired, simu taneously. It is 'therefore possible to render any one of the upper four cams g, g1, etc., active by the operationof the upper selector 20, or any one of the lower four of said cams active by the op'- eration of the lower selector 21, or one of t e upper four and one of the lower four of said cams simultaneously active by the simultaneous action of both selectors.

Pin z extends downward between the forked ends of all the levers t, t1, etc. of both groups so that when an one of said levers is selectively o erated, al of the other levers will be rock by said pin for the purpose described.

Lever 30 is actually the 'long arm of a bell crank lever pivotally mounted on the machine frame (see Fig. 1). The other arm ofthis lever has a pin which rides on a cam 71 on gear wheel 0, thereby, in coo ration with a spring 73, giving lever 30 t e reciproca.-`

tory movement hereinbefore described. Gear wheel is geared one to one withthe needle cylinder through an intermediate gear 72.

Reci rocating lever 30 carries a pawl 32 (see Flgs. 1, 3 and 5) that imparts an intermittent progressive movement to a ratchet wheel 33 on a shaft carrying two pattern chains 35 and 36. The attern chains are provided-with removable ugs of four different heights.

Selections of the lower group of levers t,

t, t and t are made in the following manner (see Figs. 3, 4 and 5) Lugs on thepattern chain 35 are ,adapted to engage a cam mem` ber 41 carried on a yoke-shaped lever 42 (see Fig. 5) on the end of which is mounted the selector 21. This lever 42 is plvoted to a bracket 48. The lever 42 is normally down in a osition where the selector 21 is inactive, butis movable into fo'ur different positions,

y thereby causing the selector to align with any one of the four levers t4, t, t and t by the action of the different height lugs on the pattern chain on cam 41.

Selections of the upper group of levers t, t1, 132,# are made as follows: Lugs on .the pattern chainv 36 are adapted to engage4 a cam 43 carried on a lever 44 which is pivoted at 45 to a bracket on the machine frame. A yoke-shaped lever 46, which carries the selector 20, is pivoted to the bracket 48. This lever 46 rests upon an adjusting screw 47 in lever 44, which in turn rests upon an adjusting screw 49 carried by bracket 48. Lever 46 is normally down so that selector 20 is inactive, but the selector may be caused to align with any one of the levers t, t1, t and t by the action of the different height lugs on the pattern chain 36 on cam 43 of lever 44.

It is obvious that by positioning the lugs on the pattern chains, the selectors may be shifted to actuate any predetermined chains of levers at each course of knitting, and that thereby jack cams g, g1', etc.,may be moved into and out of action in suchmanner as to produce any desired pattern.

I have not herein described the means for arresting the movement of the pattern chain during the knitting of the heel and toe. Such means, forming no part of the present invention, are described in a copending application Serial No. 110,311, Patent No. 580.

As hereinbefore mentioned, it is decidedly advantageous to have all of the needles in perfect alignment during heel and toe knitting and also when a transfer ring is to be placed on the needles for the purpose of transferring a rib top. I have therefore pro-- vided additional mechanism which will insure al1 of the cams g, g1, etc., being inactive at these desired periods irrespective of whether the pattern mechanism would normally render certain of these cams active at such times or not. This desired result I accomplish in the following manner. Pivoted between its ends on the machine frame, at 80, is a lever 81 (see Figs. 2, 3 and 4), one arm of which is bent down and extends under the main pattern disc 82 in the path of a cam 83 fastened to the underside of said disc. This disc is intermittently ratcheted and controls` the knitting of the various parts of the stocking, including the knitting of the heel and toe portion and the leveling of the needles for transferring, in a manner which is well known in the art. Extending upward from lever 81 is a bent arm 84 which passes over and above levers n, n1, etc. When lever 81 is rocked by cam- 83, the arm 84 pushes against a lever 85 which is pivoted at z', and by means of a depending pin 86, which passes in front of the eight levers y', swings any of such levers which at the time may be in the active position to the inactive position and holds all the levers 7' inactive notwithstandin any operation of any lever n which woul normally operate its corresponding lever y' to move its corresponding cam into operative position. When cam 83 passes from under lever 81, lever 85 is released from arm 82 and levers j again come under control ofthe pattern mechanism described.

It is obvious that by placing cams 83 in various positions on the pattern'disc 82, 'the pattern mechanism may be, whenever desired, rendered inoperative to press needles out of line.

Having now fully described my invention, what I claim and desire to protect by Letters Patent is: y

1. In a circular knitting machine, the combination with a rotatable needle cylinder and needles carried thereby, of differently positioned non-rotatable cams movable into and out of operative position, contrivances for diierent yneedles respectively adapted to rotate with the needles and to be actuated by different operatively positioned cams to de- Iiect the hook ends of their respective needles out of their normal knitting plane, chains of levers adapted to control the operation ofthe respective cams, a reciprocatory member adapted to operate said chains of levers, means to actuate the needle cylinder and synchronously therewith operate the reciprocatory member, and pattern mechanism adapted to selectively bring the several chains of levers into operative relationship with the reciprocatorv member.

2. In a circular knitting machine` the combination with a rotatable needle cylinder and needles carried thereby, of differently positioned non-rotatablecams movable into and out of operative position, different contrivances, one for each of a number of needles, adapted to rotate with the needles and to be actuated by different operatively positioned cams to deiect the hook ends of their respective needles out of their normal knitting plane, chains of levers adapted to control the operation of the respective cams, means to actuate the needle cylinder and synchronously therewith actuate any of the chains of levers, and a selector movable into different positions to render anv of said chains of levers effectively operable by its actuating means.

3. In a circular knitting machine. the combination with a rotatable needle cylinder and needles carried thereby, of differently positioned non-rotatable cams movable into and out of operative position, dierent contriv ances. one for each of a number of needles, adapted to rotate with the needles and to be actuated by different operatively positioned cams to deflect the-hook ends of their respec :tive needles out of their normal knitting planenmechanisms adapted to control the operation of the respective cams, means to actuate the needle cylinder and synchronously therewith actuate any of said mechanisms, pattern-controlledvmeans adapted to selectively render. any of said mechanlsms effectively operable by its actuating means,

and means, operable by one of said mechanisms while moving into camcontrolling position, to control the movement out of camcontrolling position of any other mechanism that is in cam-controlling position.-

4. In a circular knitting machine, the combination with a rotatable needle c linder and needles carried thereby, of di erently` 'means to'actuate the needle cylinder and synchronously therewithactuate any of the chains of levers, and pattern-controlled mechanism adapted to selectivel place none or all of the several chains o levers into operative relation with its actuating means.

5. In a circular knitting machine, the combination with a rotatable needle c linder and` needles` carried thereby, of di erently positioned non-rotatable cams movable into and out of operative position, different contrivances, one for each of a number of needles, adapted to rotate with the needles and to be actuated by different operatively positioned cams to deflect the hook ends of their respective needles out of their normal knitting plane, chains of levers adapted to control the operation of the respective cams, a

reciprocatory member carrying the lever of each chain that is adapted to actuate another lever of the same chain, a selector adapted to move the first lever of any chain into actuating position, means to actuate the needle cylinder and synchronously therewith said reciprocatory member, and pattern mechatrivances, one for each of nism adapted to osition the selector.

6. In a circ ar lmitting machine, the combination with a rotatable needle c linder and needles carried thereby, of di erently positioned lnon-rotatable cams movable into and out of operative position, different cona number of needles, adapted to rotate with the needles -and to be actuated by diil'erent o ratively positioned cams to -deect the hoo ends of their respective needles .out of their normal knittin plane, shifting levers adaptedI to -eiect t e movement of the respective cams,

into o rative osition Jo ra levers one for egli shifting levesr,p:ndtn;gconnecting means operable, when any operating lever is rendered operative, to synchronously tput into action its shifting lever and render inopera- -out of voperative tive any other shifting lever that had been' previously operative.

7. In a circular knitting machine, the combination with si rotatable needle cylmder needles carried thereby, of differently posltioned non-rotatable cams movable into land ances, one for eac of a number of needles, adapted to rotate with the needles. and. to be actuated by different operatively positioned cams vto deiect the hook ends o f their respective needles out of their normal knitting plane, chains of levers adapted to control the operating of the respective cams, a reciprocatory member carrying the lever of each chain that is adapted to advance a second lever 'of the same chain, means to actuate the needle cylinder and synchronously therewith said reciprocatory member, pattern-controlled mechanism adapted to selectively render operable the first lever of a chain, and means, operable by each of said first levers, in its movement to actuate a second lever of the same chain, to so actuate the first levers of the other chains that any of the second levers that is in cam-controlling position will be retracted by its actuating first lever from such osition.

8.l n' a circular knitting machine, the combination with a rotatable needle cylinder and needles carried thereby, of differently positioned non-rotatable cams movable into and out of operative position, different contrivances, one for each of a number of needles,

actuated by dierent operativelypostioned osition, different oontrivcams to deiiect the hook ends of their respective needles out of their normal knitt' plane, chains of levers adapted to control the operation of the respective cams, a reciprocatory member adapted to operate the sets of levers, means to actuate the needle cylinder and synchronously therewith operate the reciprocatory member pattern mechanism adapted to selectively bring the several chains of levers into operative relationship with the reciprocatoryv member, and other pattern mechanism adapted to render all the chains of levers inoperative to move or maintain their respective cams in operative position.

9. In a circular knitting machine, the combination'with a rotatable needle cylinder and needles carried thereby, of diierently positioned non-rotatable cams movable into and out of operative position, diiferent contrivances, one for each of a number of needles,

adapted to rotate with the needles and to be actuated b different operatively positionedA nously therewith actuate any of the-chains of levers', a selector movable into different'v combination with a rotatable needle cylinder l positions to render an of said chains of evers effectively opera 1e by its'actuating means, and pattern mechanism adapted to render all the chains of levers, even when operated by the selector, inoperative to move or maintain their respective cams in operative position.

10. In a circular knitting machine, the combination with a rotatable needle cylinder and needles carried thereby, of cams movable into and out of operative position, dif-- ferent contrivances, one for each of a number of needles, adapted to rotate with the needle cylinder and to be actuated by different operatively positioned cams to deflect the hook ends of their respective needles o ut of their normal knitting plane, mechanisms adapted to control the operation of the re- Spective cams, means to actuate the needle cylinder and synchronously therewith any of said mechanisms, and two selectors one movable into position to render any of a plurality of said mechanisms operable by its actuating means and the other movable into position to render any of another plurality of said mechanisms operable by its actuating means.

11. In a circular knitting machine, the

and needles carried thereby, of differently positioned non-rotatable cams movable into and out of position to be engaged by the hereinafter specified contrivances, contrivances for different needles respectively, adapted to rotate with the needles and to be actuated by different operatively positioned cams to de'- flect the hook ends of needles out of their normal knittin plane, -said contrivances being also adapte to return said cams to inoperative position, and pattern controlled means adapted at intervals to selectively move different cams into, and hold them in, operative position and to subsequently release said cams and allow them to be returned to inoperative position by said contrivances.

12. In a circular knitting machine, the combination with a rotatable needle cylinder and needles carried thereby, of diierently positioned non-rotatable cams movable into and out of position to be engaged by the hereinafter specified contrivances, contrivances for different needles respectively, adapted to rotate' with the needles and to be actuated by different operatively positioned cams to defleet the hook ends of the needles out of their normalknitting plane, spring-actuated levers tending to move the cams into position to be 4ilngaged by said contrivances and ada ted to d saidcams from being displace from operative position by said contrivances, and pattern-controlled means ada ted 4at intervals to selectively release the -iilerent levers and allow them to be so spring-actuated.l

13. In a. circular knitting machine, the combination with a rotatable needle cylinder and needles carried thereby, of dilerently being operated by their springs, and pattern controlled means adapted to release each lever restraining means and allow the corresponding cani to bev sprung into operative position at a point in the rotation of the needle cylinder at which no corresponding contrivance is opposite such cam.

14. In a circular knitting machine, the combination with a rotatable, needle cylinder and needles carried thereby, of differently position non-rotatable cams movable into and out of position to be engaged by the .hereinafter specified contrivances, contrivances for dilerent needles respectively, adapted to rotate with the needles and to be lactuated by different operatively positioned cams to deflect the hook ends of needles out of their normal knitting plane, levers, one for each cam, adapted to move the cams into operative position, and a device which is adjustable to variably determine the extent of movement of each lever and its correspondin cam and thereby determinethe amount o deflection that is imparted to the corresponding needle.

15. In a circular knitting machine, the combination with a rotatable needle cylinder and needles carried thereby, of differently positioned non-rotatable cams movable into and out of position to be engaged by the hereinafter specified contrivances, contrivancesfor dili'erent needles respectively, adapted to rotate with the needles and to be actuated by .diierent operativelpositioned positioned non-rotatable cams movable intoand out of position to be engaged by the hereinafter ances for adapted to-rotate with the needles and to be actuated by different operatively positioned sipecied contrivances, contriviferent needles respectively,

cams to deflect the hook ends of needles out of their normal knitting plane, levers, one lfor each cam, adapted to render the respective cams operative, pattern controlled means adapted to selectively render said leversv operable or inoperable to render the respective cams operative, and lanother pattern controlled means adapted to render all of said 'levers inoperable to render the respective cams operative regardless of the operation of the first named pattern controlled means. v 17. In a circular knitting machine, jthe combination with a rotatable needle cylinder and needles carried thereby, of differently positioned non-rotatable cams movable into and out of position to be engaged by the hereinafter speciied contrivances, contrivances for different needles respectively, adapted to rotate with the needles and to be actuated by dierent operativel positioned cams to deflect the hook ends o needles out of their -normal knitting plane, and levers, one for each cam, adapted to operate said cams, each lever being adjustable to predetermine the position to which the corresponding cam shall be moved to operate its corresponding needle deiecting contrivance and each lever being movable to so move its corresponding cam into operative position.

In testimony of which invention, I have hereunto set my hand at Philadelphia, Pennsylvania, on this 19th day of July, 1927.

HAROLD E. HOUSEMAN.

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