US2273811A - Method of knitting and machine therefor - Google Patents

Method of knitting and machine therefor Download PDF

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US2273811A
US2273811A US405164A US40516441A US2273811A US 2273811 A US2273811 A US 2273811A US 405164 A US405164 A US 405164A US 40516441 A US40516441 A US 40516441A US 2273811 A US2273811 A US 2273811A
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needles
yarn
needle
yarns
reversing
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US405164A
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Agulnek Harry
Mishcon Lester
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32Cam systems or assemblies for operating knitting instruments
    • D04B15/34Cam systems or assemblies for operating knitting instruments for dials
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10Patterned fabrics or articles
    • D04B1/12Patterned fabrics or articles characterised by thread material
    • D04B1/126Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06Sinkers
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B9/00Circular knitting machines with independently-movable needles
    • D04B9/26Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
    • D04B9/34Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by plating

Definitions

  • Figure 1 is a diagrammatic development of a portion of a knitting machine adapted to perform the steps of producing'the fabric according to our invention.
  • Figure 2 is an enlarged fragmentary semi-diagrammatic front view of a portion -of the machine of Figure 1, showing the relation ofthe two yarns and the needle deflecting means in association with two reversing needles and two plat- Figure 3 is a fragmentary plan view tion of the apparatus of Figure 2.
  • Figure 4 illustrates the upper reversing needle
  • Figure 5 is-a diagrammatic elevation of a series of needles being drawn down by the stitch cam to the cast-off position, and illustrating how a reversal is effected by the action of one of the upper reversing needles.
  • Figure 6 is a perspective view of a series of needles, substantially similar to those of Figure 5, showing the position of the two yarns during a reversing operation.
  • Figure his a 'diagrammatic plan view of needles of Figure 6, showifigthe position of the two yarns during the reversing process.
  • Figure 8 is a diagrammatic representation oftwo positions of the needle nextadiacent the reversing needle of Figures 5, 6 and 7, showing the reversed position of the yarn at cast-ofl'position. .L-
  • Figure Q is a diagrammatic elevation substanthe l fragment of the machine of positions of the needle next adjacent the rovers ing needle of Figures 9 and 10, showing the re versed position of the yarn at cast-off position;
  • Figure 12 is a diagrammatic representation of an inwardly projected sinker, and adjacent needle, showing the manner in which one of the yarn strands is held in a pocket formed within the throat of the sinker and in front of the needle.
  • Figure 13 is a diagrammatic plan view of a Figure 1, showing the relation ofthe feeds for the twoyarns and the sinker actuating cam.
  • Figure 14 is a diagrammatic representation of the fabric of our invention showing an arrange-- ment of the stitches formed by the two plated yarnsiand,
  • Figure 15 is arepresentation of a portion of fabric produced according to our invention, showing a design portion thereof.
  • the needles leaving selector wheel 22' are dr wn. down by cam 21 to a level 35 preferably sl htly below tuck level. Thereafter the needles 2
  • Certain of the needles leaving cam 21 are elevated by the upper Jacks 3
  • Certain other needles leaving cam 21 are elevated by low jacks 32 of wheel 23 to the intermediate level 36, these needles being identified by the reference numeral 39. It will be observed that needles 39 are at such a level as to enable them to take both yarns X and Y.
  • the needles taking-both yarns. to wit, needles 39 are referred to as plating needles, whereas needles 36 are referred to proach cam.20 is employed to elevatecoacting preferred arrangement being such that the hooks of the needles will he'elevated by cam 20 to tuck level 23. It is understood, of course, that the wheel '22 is adapted to selectively elevate coactas lower reversing needles and needles 3! as "upper reversing needles, 5
  • said wheel 28 is preferably substantially of the type described in Patent No. 2,055,598 wherein there are two sets of jacks, the upper jacks 3
  • the lower tip of the latch will be spaced sufliciently from the shank to permit the yarn)? to enter between the latchand shank, and thereby raise the latch and ride thereover, to miss the hook as the needle is being drawn.
  • separating cam 29 i preferably, although not necessarily, of the type described in .Patent No. 2,006,821. 7
  • the two yarns X and Y are fed in' plating relation by means of guides 33 and 34, respectively.
  • guide 34 feeds yam Y along a substantially horizontal path at the;
  • the deflector 401s preferably curved a sufficient amount over a predetermined distance so as to maintain the upperreversin'g needles 31 in the projected positions until they reach a predate ed position .in the region of thesinker; level, s will appear from the descrip tion hereinafter'given.-' .It will'be observed from Figure that each needle 31' is displaced ;forwardly or outwardlyfrom the cylinder, ,out of its the closed latch, missing the hook completely, as
  • plating needles 39 each contain or are adapted to contain two yarns therein.
  • the lower stitch cam 30, this yarn will engage the closed latch of the needle.
  • This is as illustrated in Figure 9 where needle 36 is shown on its downward path with yarn Y within the hook and yarn X riding over the latch.
  • the forward position of yarn X'over the latch of needle 36 urges the portions of this yarnthat are disposed within the next following plating needles 3! to move forwardly, thereby bringing yarn X again into its normal forward position.
  • This action is facilitated by the fact that only the yarn Y is engaged by the reversing needle 36, the engagement being in.the form of a downward tug thereupon, to
  • yarn X Ldis'posed with respect to yarn X, so that upon a casting-off of this stitch in the next round, yarn X will appear at the face of the fabric, as distinguished from the normal arrangement shown in needle 44 of Figure 5 where yarn Y will appear at the'face of the fabric.
  • the lower reversing needle 36 In order to effect a return of the yarns to their original positions, the lower reversing needle 36 is brought into'pay. It will be recalled that the latch of this needle (see Figure l) is closed after having taken yarn Y within its hook, so that as it reaches yarn X while being drawn down by the and effect.
  • the upper reversing needle 31 is caused to miss the lower yarn Y by means of a deflection of the needle; and the lower reversing needle 36 is caused to miss the upper yarn X by virtue of the factthat its latch is closed upon reaching said yarn.”
  • the non-selected yarn, or the yarn. not taken by the needle is causedto ride over the latch thereof, and thereby forced into a forwardly position.
  • Figure 13 shows diagrammatically the camming arrangement according to best operative requirements of the apparatus of this invention.
  • the cam 41 mounted on the sinker ring contains an inwardly projeeting'portion l8 for moving the sinkers inwardly to the position of Figure 12.
  • the portion 49 of thecam, just preceding portion 48 is recessed outwardly so as to permit guide 34 toconduct yarn Y to the needles SI at sinker level, the sinkers being moved outwardly so as to prevent the noses thereof from intercepting the yarnportions being fed into the needles.
  • the portion ll of the cam subsequent to portion 48 is also recessed a suflicient amount to permit the yarn guide 33 to conduct the yarn X to the needles in proper relation to'the sinker.
  • the inwardly disposed cam portion ii is adapted to cause the'sin'kers to move to' their cast-off positions.
  • the fabric illustrated diagrammatically in Figure 14 may be produced. It will be observed that yarns X and Y are shown generally throughout the fabric in plated relation, in some courses yarn X being shown above yarn Y, and in other courses in the reverse position. It is in this manner diagrammatically illustrated that in some portions of the fabric yarn Y is on the facethereof, and in other portions yarn X is in such position. It will be observed that in those wales where the upper reversing needle 31 missed the yarn Y, stitches 52 composed only of strands of yarn X are incorporated into the fabric, whereas in those waleswhere the lower reversing needle 38 missed yam X, only stitches 53 composed of strands of yam-Y are incorporated in the fabric.
  • the wales containing stitches 52 and 53 constitute the lines of demarcation between adjacent design areas. Due to' the selec tivity of design wheel ll, the lines of demarcation may obviously be disposed in any predetermined wale.
  • wale 56 contains the single stitches 58 of yarn X
  • waie I9 contains the single stitches SI of yarn Y.
  • the needle deflecting means comprising ram means associated with the sinker ring and disposed substantially at the said upper position of the reversing needles and operatively engageable with coacting reversing needles to cause a forward flexing thereof.
  • reverse plating means comprising means for simultaneously feeding 'two yarns one above the other and in plating relation, and needle actuating means in individual association with predetermined plating needles and predetermined reversing needles for bringing them into operative engagement with said yarns, said actuating means including means operative upon said plating needles to cause them to take both of said yarns, means operative upon said reversing needles to cause them to take a selected one of said yarns, means to close the latch of each reversing needle after operatively taking its yarn, sinker means operatively engageable with the lower of said yarns, means to actuate said sinker means inwardly whereby said lower yarn will be confined within the throat of adjacent sinkers and in front of the open and closed latches of coacting needles, and means to hold the upper of said yarns in front of the closed latches of coacting reversing needles, whereby the portions ing them into operative engagement with said yarns, said actuating means containing needle elevating means for raising
  • reverse plating means comprising means for simultaneously feeding two yarns one above the other and in plating relation, needle actuating means in individual association with predetermined plating and reversing needles for bringing them into operative engagement with said yarns, said actuating means containing needle depressing means for lowering certain of the said reversing needles to a position for taking only the lower of said two yarns, said position being slight above sinker level but sufliciently low to permit the previously formed stitch over the shank of each of said reversing needles to close the latch thereof, means for bringing the plating needles to a position for taking bothyarns, and stitch cam means for lowering all needles to castofi position, the closed latches of said reversing needles during their operative movement towards cast-oif position engaging the upper of said yarns and consequently causing the portions of such yarn within the following plating needles to be carried forwardly.
  • reverse plating means comprising means for simultaneously feeding two yarns in plating relation, one of said yarns being fed substantially along sinker level and the other a predetermined distance thereabove, needle actuating means in individual association with predetermined plating and reversing needles for bringing them into operative engagement with said yarns, said actuating means containing needle elevating means for raising certain of the said reversing needles to a latch-clearing position for taking the upper of said two yarns, means for bringing the plating needles to an intermediate level for taking both of said yarns, and means for bringing certain other of said reversing needles to slightly above sinker level for taking.

Description

Feb. 24, 1942 H. AGULNEK ETAL 73,
, METHOD OF KNITTING AND omma wanabroa Original Filed Jam 13, 1941 I 4,She ets-Sheet 1 e]: is!) can 1 WLW mvsmoRS 15y)? u/n. Lesler Feb; 24, 1 942. H. AGULNEK ETAL 2,273,811
- mmcmop or xumm mu momma 'rasnnron Original Filed Jan. 13. 1941 v 4 Sheets-Sheet 2 INVENTORS 14 bra/(- Lmler M bwn By 'iiw m my Feb; 24, 1942; H. AG ULNEK ET AL 2,273,811
METHOD OF KNITTING AND MACHINE THEREFOR ori inal 5116a Jan. 13, 1941 4; Sheets-Sheet 5 A F Z Aka-1y a ne leslerjgscon w m y.
, km. NM M Mm. um
Feb24,1942. AGULNEK mL 2,273,811
METHOD OF KNITTING AND MACHINE THEREFOR Original Filed Jan. 13, 1941 4 Shee'ts-Sheet 4- Patented Feb. 24, 1942 i METHOD or KNITTING AND MACHINE THEREFO Harry Agulnek and Lester Mishcon, Brooklyn,
N. Y., assignors to Samuel Mishcon, doing business as Supreme Knitting Machine 00., Brook lyn, N. Y.
Original application January 13, 1941, 'Serial No. 374,220. Divided and this application August 2, 1941, Serial No. 405,164 r 14 Claims: (oi. 66-50) This invention relates to a method and apparatus for making knitted fabrics having design efiects thereon, and particularly to the production of reversely plated fabrics, this being a division of our application filed January 13;" 1941, Serial No. 374,220. I f
Reversals of the platinglyams in knitting operations have been heretofore effected by mech-= anisms adapted-either to produce reversing movements of the yarn carriers, or to cause a displacement of selected needles by flexing or other means for bringing about a reversal of the positions of the yarns in the hooks of the needles before casting off. In most of the presently known methods commonly employed for this purpose, special tensioning means must be employed to keep the yarns in condition for enabling the reversing operation to be properly effectuated;
' of areas ,of different thicknesses to give the effect and in all of the devices employed for reverse plating all the needles must at all times'be caused to take both or all the yarns operatively fed in plated relation. It has been frequently found that with these conventional .methods heretofore used to produce reverse plating effects, not only were the devices comparatively intricate in structure, but they also at times produced fabric with an indefinite line of demarcation between adjacent plated areas as a result of overlapping of the contiguous marginal wales of the two areas.
It is primarily within the contemplation of our invention to enable reverse plating'to be accomcausing a deflection of relativelyfew of the knit ting needles, and in such manneriasto cause a reversal of-the position of the yarn within the plating needles until a return reversal is effected by an extremely simple expedient. I,
It is another object of thisinvention to pro."- duce a patterned fabric by reverse plating in such ,manner as to effect a' sharp line of demarcation betweendifferently colored or textured areas. We
accomplish this objective by causing certain needles, hereinafter called reversing" needles,
. to miss one of the two yarns fed in plated relation, so that the wales at the line of demarcationbetween two adjacent design areas of the fabric contain only a single yarn, whereas the wales in the,rest of theknitted and design areas contain two yarns. By this means not only is the sep-' :ing needles.
arating line between design areas characterized by a single color, but also by a distinct texture or surface effect because the wales of such line of demarcation have less body than the rest of the fabric. We have found that by this method of knitting the line of separation between two ad- .iacent design areas is considerably more definite and accentuated than corresponding linesin fabrics produced by conventional plating methods.
And in the last-mentioned aspect of our invention, it is a further object to produce a fabric having a plurality of design areas separated by portions, analogous to the lines of demarcation of what is commonly known as lace cloth;
Other objects, features and advantages will appear from the drawings and the description hereinafter given.
Referring to the drawings,
Figure 1 is a diagrammatic development of a portion of a knitting machine adapted to perform the steps of producing'the fabric according to our invention.
Figure 2 is an enlarged fragmentary semi-diagrammatic front view of a portion -of the machine of Figure 1, showing the relation ofthe two yarns and the needle deflecting means in association with two reversing needles and two plat- Figure 3 is a fragmentary plan view tion of the apparatus of Figure 2.
Figure 4 illustrates the upper reversing needle,
of a porin .elevation, in three positions with respect to the two yarns. v
Figure 5 is-a diagrammatic elevation of a series of needles being drawn down by the stitch cam to the cast-off position, and illustrating how a reversal is effected by the action of one of the upper reversing needles.
Figure 6 is a perspective view of a series of needles, substantially similar to those of Figure 5, showing the position of the two yarns during a reversing operation.
Figure his a 'diagrammatic plan view of needles of Figure 6, showifigthe position of the two yarns during the reversing process.
Figure 8 is a diagrammatic representation oftwo positions of the needle nextadiacent the reversing needle of Figures 5, 6 and 7, showing the reversed position of the yarn at cast-ofl'position. .L-
Figure Q is a diagrammatic elevation substanthe l fragment of the machine of positions of the needle next adjacent the rovers ing needle of Figures 9 and 10, showing the re versed position of the yarn at cast-off position;
Figure 12 is a diagrammatic representation of an inwardly projected sinker, and adjacent needle, showing the manner in which one of the yarn strands is held in a pocket formed within the throat of the sinker and in front of the needle. Figure 13 is a diagrammatic plan view of a Figure 1, showing the relation ofthe feeds for the twoyarns and the sinker actuating cam. v
Figure 14 is a diagrammatic representation of the fabric of our invention showing an arrange-- ment of the stitches formed by the two plated yarnsiand,
Figure 15 is arepresentation of a portion of fabric produced according to our invention, showing a design portion thereof.
In the particular form of our ,apparatus for knitting machine of the independent, latchneedle type is employed, having a convezitional cam ring coacting with a plurality, of vertically movable needles. Inasmuch ,as the structure is Operativelyassociated with the machine are a plurality of needleelevating and depressing means for raising or lowering the needles to such predetermined positions as willenable the knit-= ting steps to be effectively performed. In the preferred arrangement as illustrated, an apdownwardly above yarn Y and at an angle with respect thereto, the two yarns being fed in adja-. cent relation within the hooks of the needles being drawn down for loop drawing by stitch cam 30.. In the preferred manner of practicing our invention, the needles leaving selector wheel 22'are dr wn. down by cam 21 to a level 35 preferably sl htly below tuck level. Thereafter the needles 2| encounter the two-level'selector wheel .28. Some of the needles 36 pass through said wheel and are drawn down by separator 29 to a level 36a slightly above sinker level, the position behig such that each needle 36 will-be in a posi-' tion to take yarn Y, but will be below the level for taking yarn X, and will be sufficiently low -to enable the previously formed stitches over the shanks of needles 36 (not shown) to close the latch of each of these needles, as'is indicated'in Figure 1. Certain of the needles leaving cam 21 are elevated by the upper Jacks 3| of wheel 26 to latch-clearing level, ,as aforesaid, such needles producing this'invention as illustrated, a circular beingidentified by the reference number 31, these needles being elevated sumciently high to takeyarn Xonly, the lately being above the sinker level and being entirely, cleaig of any portion of yarn Y. Certain other needles leaving cam 21 are elevated by low jacks 32 of wheel 23 to the intermediate level 36, these needles being identified by the reference numeral 39. It will be observed that needles 39 are at such a level as to enable them to take both yarns X and Y. thelatter yarn being received across the open latches of the needles, whereas the former is received thereabove in the region of the hooks. For purfposes of convenience, the needles taking-both yarns. to wit, needles 39, are referred to as plating needles, whereas needles 36 are referred to proach cam.20 is employed to elevatecoacting preferred arrangement being such that the hooks of the needles will he'elevated by cam 20 to tuck level 23. It is understood, of course, that the wheel '22 is adapted to selectively elevate coactas lower reversing needles and needles 3! as "upper reversing needles, 5
After a selected upper reversing needle 31 takes yarn X, it is necessary to cause this needle, during its ,downward course to loop-drawing posi-, tion, to miss yarn Y and hold only yarn X within its hook. One way of doing this would be ,to force the yarn Y, by the action of a sinke'r such as 45.0f Figure 12, against the shank of the needle 31 below its latch when it is in its raised 1 position shown" in Figure 2. As 'the latch in its ing needles and let others pass therethrough in conventional manner. In the design illustrated,
however, all the slots of the wheel are shown filled with jacks 2| so as to elevate all the needles to latch-clearing level 25 with respect to a sinker level 26. Following the wheel 22 are, in succession,'the depressing cam 21, a special type of selector wheel 20, a separating cam 29 and a stitch cam 30, the operative coactive employment of which will.hereinafter be fully described. It
should, however, atthis'time be noted that said wheel 28 is preferably substantially of the type described in Patent No. 2,055,598 wherein there are two sets of jacks, the upper jacks 3| for elefully open position is, or can be made to be, slightly inclined with respect to the shank of.
the needle, the lower tip of the latch will be spaced sufliciently from the shank to permit the yarn)? to enter between the latchand shank, and thereby raise the latch and ride thereover, to miss the hook as the needle is being drawn.
down. Another method of doing this is to deflect the needle 31 forwardly by suitablemeans,
thereby bringing the shank of the needle against the yarn Y'to-produce the same result, that is.
vating coacting needles-to a latch-clearing positionfor taking only one yarn, and the-lower? jacks 32 for elevating coacting needles to an intermediate level for taking two yarns in plating relation, as hereinafter appear. separating cam 29 i preferably, although not necessarily, of the type described in .Patent No. 2,006,821. 7
The two yarns X and Y are fed in' plating relation by means of guides 33 and 34, respectively.
It will be observed that guide 34 feeds yam Y along a substantially horizontal path at the;
sinker level, and that guide 33 directs yarn X The' to cause the needle 31 tomiss the yarn Y and hold only the yarn X within its .hook. This action begins substantially in the region desig-. nated by the arrow A. By referring to Figures 2 and 3 it will be seen that the upper reversing needle 31 is engaged by the preferably resilient deflector-l0 supported by the bracket 41 ailixed to sinker ring 42. The deflector 401s preferably curved a sufficient amount over a predetermined distance so as to maintain the upperreversin'g needles 31 in the projected positions until they reach a predate ed position .in the region of thesinker; level, s will appear from the descrip tion hereinafter'given.-' .It will'be observed from Figure that each needle 31' is displaced ;forwardly or outwardlyfrom the cylinder, ,out of its the closed latch, missing the hook completely, as
indicated in the extreme left position of Figure 4.
It is important to observe that of the two yarns the lower yarn Y is normally fed closerto the cylinder (or to the shank of the needle) ,Qwhereas :1 the upper yarn X isfed so that it will' be somewhat farther removed from the cylinder. When the needles are subsequently brought down towards the cast-off position, under normal conditions with both yarns in the hook, as shown in .needle 44 of Figure ,5, that position is main- "ures 5 to 8, inclusive. In Figure 5 the upper reversing needle 31 is shown on its downward path (being broughtdown by the stitch cam), with the yarn Y riding over the latch 43 of the needle, and
with the yarn X within the hook thereof. The
following plating needles 39 each contain or are adapted to contain two yarns therein. The lower stitch cam 30, this yarn will engage the closed latch of the needle. This is as illustrated in Figure 9 where needle 36 is shown on its downward path with yarn Y within the hook and yarn X riding over the latch. The forward position of yarn X'over the latch of needle 36 urges the portions of this yarnthat are disposed within the next following plating needles 3! to move forwardly, thereby bringing yarn X again into its normal forward position. This action is facilitated by the fact that only the yarn Y is engaged by the reversing needle 36, the engagement being in.the form of a downward tug thereupon, to
bring it into its lower position. Thus, by referring to. Figure 11, it will be seen that yarn X in the upper needle has now been brought forwardly by the action above described, so that when the'needle reaches the lower position shown to the left in said figure, the two yarns are in the positions indicated,- which is similar to the normal position shown in needle 44 of Figure 5. The yarns remain in this relative position until the next reversing operation takes place in the manner aforesaid.
It is. thus apparent that the reversal and return to normal position may be effected in eachcase by a single reversing needle, although if desired a group of several such reversing needles may obviously'be employed with the same force yarn Y in the said following plating needles is I urged forwardly to the positions, indicated, in
view of the fact that the said yarn Y has been moved .to' a forwardly position during its travel over the closed latch 43 of the reversing needle.
This position is more forwardly than that of yarn X. We have found that this new relative positioning of yarns X and Y in the following plating needles 39 is maintained thereafter until positive return reversing means are brought into actual engagement with the yarn to effect a return of the two yarns to their original positions in a manner to be hereinafter described. However, until such return is definitely effectuated, the
Ldis'posed with respect to yarn X, so that upon a casting-off of this stitch in the next round, yarn X will appear at the face of the fabric, as distinguished from the normal arrangement shown in needle 44 of Figure 5 where yarn Y will appear at the'face of the fabric.
In order to effect a return of the yarns to their original positions, the lower reversing needle 36 is brought into'pay. It will be recalled that the latch of this needle (see Figure l) is closed after having taken yarn Y within its hook, so that as it reaches yarn X while being drawn down by the and effect. The upper reversing needle 31 is caused to miss the lower yarn Y by means of a deflection of the needle; and the lower reversing needle 36 is caused to miss the upper yarn X by virtue of the factthat its latch is closed upon reaching said yarn." In each case the non-selected yarn, or the yarn. not taken by the needle, is causedto ride over the latch thereof, and thereby forced into a forwardly position. This forward movement of the non-selected yarn is transmitted to the portions thereof in the following plating needles, causing a reversal of the two yarns in the hooks thereof, so that when the needles are stitch cam, the most forward yarn will in each case be the non-selected yarn.
In order to prevent the lower yarn Y from moving about uncontrollably, it is essential that.
such yarn be kept as closely confined towards the latches of the plating needles 39 as may be deemed reasonably necessary. And it is of particular importance to keep said lower yarn as close as possible to the shank of upper reversing needle 31 when it is in its raised positionso that said yarn will underlie the needle to close the latch, and not accidentally move in front of the open latch. In this manner yarn Y remains nonselected with respect to upper reversing needle 31, and will operatively ride over the closed latch thereof. This effect is accomplished by causing the sinkers 45 (Figure 12) to be projected inwardlytowards the cylinder so as to form a pocket 46 within the throat of the sinker 45 forwardly of the needle. It will be seen that the' pedient in proper position beyond the region of I yarn guide-33, after which the inward slope of the sinker c-m towards cast-oil position helps to maintain the yarn close to the needles.
Figure 13 shows diagrammatically the camming arrangement according to best operative requirements of the apparatus of this invention.
- finally drawn to their lowermost positions by the 4 The cam 41 mounted on the sinker ring contains an inwardly projeeting'portion l8 for moving the sinkers inwardly to the position of Figure 12. The portion 49 of thecam, just preceding portion 48, is recessed outwardly so as to permit guide 34 toconduct yarn Y to the needles SI at sinker level, the sinkers being moved outwardly so as to prevent the noses thereof from intercepting the yarnportions being fed into the needles. The portion ll of the cam subsequent to portion 48 is also recessed a suflicient amount to permit the yarn guide 33 to conduct the yarn X to the needles in proper relation to'the sinker. Thereafter the inwardly disposed cam portion ii is adapted to cause the'sin'kers to move to' their cast-off positions.
Bythe method and apparatus above described, the fabric illustrated diagrammatically in Figure 14 may be produced. It will be observed that yarns X and Y are shown generally throughout the fabric in plated relation, in some courses yarn X being shown above yarn Y, and in other courses in the reverse position. It is in this manner diagrammatically illustrated that in some portions of the fabric yarn Y is on the facethereof, and in other portions yarn X is in such position. It will be observed that in those wales where the upper reversing needle 31 missed the yarn Y, stitches 52 composed only of strands of yarn X are incorporated into the fabric, whereas in those waleswhere the lower reversing needle 38 missed yam X, only stitches 53 composed of strands of yam-Y are incorporated in the fabric.
It will be seen that in the wales on the left of yarn Y from its upper position in wale to its I lower position in wale I. The reverseis obviously true in the case of the wales flanking the stitches 53, the strand 1 of .yarn X extending diagonally downwardly from the left wale to the right wale to produce the reversal.
In Figure 14 the wales containing stitches 52 and 53 constitute the lines of demarcation between adjacent design areas. Due to' the selec tivity of design wheel ll, the lines of demarcation may obviously be disposed in any predetermined wale. For example, wale 56 contains the single stitches 58 of yarn X, and waie I9 contains the single stitches SI of yarn Y.
By referring to Figure '15 it will be noted that the design area BI is separated from areas I and 63 by lines of demarcation 64 and 65, these lines being sharply defined not only because of color distinction, but also because of the fact that said lines of demarcation contain fewer stitches. than are present in the bodies of design areas i2 and 83.
It is of course understood that other additional forms and modifications of the fabric, of the apparatus, and adaptations of the method constiboth of said yarns, means operative upon said reversing needles to cause them to take a selected one of said yarns, means to close the latch of each reversing needle after operatively taking its yarn, and means to hold each nonselected yarn in front of the closed latch of the coacting reversing needle, whereby said non-selected yarn in the following plating needles will be carried forwardly therein prior to the'loop drawing.
2. In an independent needle knitting machine, reverse plating means comprising means for simultaneously feeding two yarns in plat relation, and needle actuating means in individual association with predetermined plating needles and predetermined reversing needles for bringing them into operativeengagement with said yarns, said actuating means including means operative upon predetermined groups of said plating needles to cause them to take both of said yarns, means operative upon said reversing needles to cause them to take a selected one of said yarns, needle depressing means adapted to lower all the needles to cast-off position, means to close the latch of each reversing needle after operatively taking its yarn, and means to hold each non-selected yarn against the closed latch of the coacting reversing needle being drawn down by. said depressing means, whereby the nonselected yarn in the plating needles following the reversing needles will be brought to the foremost position within the hooks of the needles prior to the loop drawing.
3. In an independent needle knitting machine, reverse plating means comprising means for simultaneously feeding two yarns one above the other and in plating relation, needle actuating means in individual association with predetermined plating and reversing needles for bringing them into operative engagement with said yarns, said actuating means containing needle elevating means for raising certain of the said.
reversing needles to an upper position for taking needles when at said upper position being adjacent the lower of said two yarns, means for bringing the plating needles to a position for taking both yarns, needle depressing means for lowering all needles to cast-off position, and means for bringing each of said raised reversing needles and the said lower of said two yarns into engagement whereby, as each needle is being lowered by said depressing means, the open latch thereof will intercept said lower yarn and be reverse, plating means comprising means for simultaneously feeding two yarns one above the other and in plating relation, needle actuating means in individual association with predetermined plating and reversing needles for bringing them into operative engagement with said yarns,
association with predetermined plating needles and predetermined reversing needles for bringing them into operative engagement with said yarns, said actuating means including means operative upon said plating needles to cause them to take said actuating means containing needle elevating means for raisingcertain of the said reversing needles to an upper position for taking only the upper of said two yarns, and means for bringing the plating needles to a position for taking both yarns, needle depressing means for lowering all needles to cast-01f position, and needle deflecting means engageable with each of said raised reversing needles while in a raised position for dis- 2,273,811 placing it a sufficient amount forwardly to cause of the following plating needles.
5. In a circular independent latch needle knitting machine, the combination according to claim 4, the needle deflecting means comprising ram means associated with the sinker ring and disposed substantially at the said upper position of the reversing needles and operatively engageable with coacting reversing needles to cause a forward flexing thereof.
6. In an independent needle knitting machine.
reverse plating means comprising means for simultaneously feeding 'two yarns one above the other and in plating relation, and needle actuating means in individual association with predetermined plating needles and predetermined reversing needles for bringing them into operative engagement with said yarns, said actuating means including means operative upon said plating needles to cause them to take both of said yarns, means operative upon said reversing needles to cause them to take a selected one of said yarns, means to close the latch of each reversing needle after operatively taking its yarn, sinker means operatively engageable with the lower of said yarns, means to actuate said sinker means inwardly whereby said lower yarn will be confined within the throat of adjacent sinkers and in front of the open and closed latches of coacting needles, and means to hold the upper of said yarns in front of the closed latches of coacting reversing needles, whereby the portions ing them into operative engagement with said yarns, said actuating means containing needle elevating means for raising certain of the said reversing needles to an upper position for taking only the upper of said two yarns, and means for bringing the plating needles to a positicn for taking both yarns, needle depressing means for lowering all needles to cast-off position, needle deflecting means engageable with each of said raised reversing needles while in a predetermined raised position for displacing it a suflicient amount forwardly to cause the open latch thereof,
as the needle is being lowered by said depressing .means, to intercept the lower of said yarns,
whereby said lower yarn will close said latch and ride thereover to miss the hook of the needleand the hooks of thefollowing plating needles, a plurality of sinkers operatively engageable with the I consequently assume a forwardly position within lower of said yarns, and cam means adapted to .yarn will be confined within the throat of said sinkers and in front of the coacting needles.
8. In an independent needle knitting machine,
reverse plating means comprising means for simultaneously feeding two yarns one above the other and in plating relation, needle actuating means in individual association with predetermined plating and reversing needles for bringing them into operative engagement with said yarns, said actuating means containing needle depressing means for lowering certain of the said reversing needles to a position for taking only the lower of said two yarns, said position being slight above sinker level but sufliciently low to permit the previously formed stitch over the shank of each of said reversing needles to close the latch thereof, means for bringing the plating needles to a position for taking bothyarns, and stitch cam means for lowering all needles to castofi position, the closed latches of said reversing needles during their operative movement towards cast-oif position engaging the upper of said yarns and consequently causing the portions of such yarn within the following plating needles to be carried forwardly.
9. In an independent needle knitting machine, reverse plating means comprising means for simultaneously feeding two yarns one above the other and in plating relation, needle actuating means in individual association with predetermined plating and reversing needles for bring- .ing them into operative engagement with said yarns, said actuating means containing needle elevating means for raising certain of the said reversing needles to an upper level for taking only the upper of said two yarns, means for bring-.
ing the plating needles to anintermediate level fortaking both of said yarns, and means for ing all needles to cast-off position; means to close the latch of each reversing needle after operatively taking its yam; and means to hold the non-selected yarn against the closed latches of .coacting reversing needles, whereby the respective non-selected yarns will be carried forwardly within the, following plating needles.
10. In an independent needle knitting ma- 'chine, reverse plating means comprising means for simultaneously feeding two yarns in plating relation, one of said yarns being fed substantially along sinker level and the other a predetermined distance thereabove, needle actuating means in individual association with predetermined plating and reversing needles for bringing them into operative engagement with said yarns, said actuating means containing needle elevating means for raising certain of the said reversing needles to a latch-clearing position for taking the upper of said two yarns, means for bringing the plating needles to an intermediate level for taking both of said yarns, and means for bringing certain other of said reversing needles to slightly above sinker level for taking. the lower of said yarns and causing the previously formed stitches over said needles to close the latches thereof; needle depressing means for lowering all needles to castofi position; needle deflecting means engageable with each of the said reversing needles raised to latch-clearing position for deflecting it, while in a raised position, a suflicient amount forwardly to cause the open latch thereof, as the needle is being lowered by said depressing means, to intercept the lower of said yarns, whereby said lower yarn will close said latch and ride thereover and assume a forwardly position within the following plating needles; the said reversing needles ihg their movement to cast-off position, the upper of said yarns with their closed latches, and consequently causing the portions of such yarn within the following plating needles to assume a forwardly position 11. In a method of knitting reversely plated fabric upon a series of independently movable needles, the steps of feeding to'certain of the needles a pair-of yarns in plating relation, alternately feeding first to certain other needles a selected one of said yamsand then to certain other of the needles the other of said yarns,
actuating each non-selected yarn forwardly during the knitting of a course of stitches to cause the portions of said non-selected yarn within the following adjacent needles be corresponding carried forwardly, thereby exchanging positio with the other yarn in each of said following latches of each of said, predetermined needles.
after having received its selected yarn, tyringing the non-selected yarn into engagement with the closed latch of each of the said predetermined needles coacting therewith during the knitting of a course of stitches, whereby said non-selected yarn will ride over the latch of each of said 7 needles and be actuated forwardly out of its normal path to cause the portion thereof in the following needle to be correspondingly actuated,
and moving all the needles to cast-01f position.
13. In a methodof knitting reversely plated 2,278, 81}. M which contain only the lower yarn eng ing. durfabric upon a series of independently movable latch needles, the steps of, feeding to certain of the needles 'apair of yarns one above the other and in plating relation, elevating during the knit- 6 ting of a course of stitches at least a predetermined one of certain other needles to a level for taking the upper of said yams but above the level of thelower yarn, lowering all the needles to cast-off position, deflecting said predetermined l0 needle 'out of its normal position while being so lowered, whereby it will take only said upper yamand miss the lower yarn, and bringing the lower yarn into engagement with the latch of said deflected needle during its downward travel, where- 15 by the lower yarn will be caused to close the latch and ride thereover, thereby being moved forwardly from its normal position to cause the portion thereof in the next adjacent needleto be correspondingly moved forwardly,
20 14. In a method of knitting reversely plated fabric upon a series of independently movable latch needles, the steps of feeding to certain of the needles a pair of yams'one above the other and in plating relation, bringing at least a pre- 5 determined one of certain other needles to a position above sinker level for taking the lower of said yarns but sumciently low to causethe previously formed stitches over the shank of said predetermined needle to close the latch thereof,
Sir moving all the needles towards cast-off position.
and bringing the closed latch 'of said predetermined needle into engagement with the upper of said yarns, thereby moving it. forwardly from its normal position to cause the portion thereof 35 in the next adjacent needle to be correspondingly moved forwardly. L
- HARRY AGULNEK.
LESTER MISHCON.
US405164A 1941-01-13 1941-08-02 Method of knitting and machine therefor Expired - Lifetime US2273811A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148518A (en) * 1960-06-08 1964-09-15 Singer Co Multi-feed knitting machine
US3416332A (en) * 1965-08-02 1968-12-17 Dubied & Cie Sa E Patterning device for jacquard circular knitting machines
CN112176511A (en) * 2019-07-01 2021-01-05 佰龙机械厂股份有限公司 Weft knitting machine knitting structure with yarn position changeable
EP3770312A1 (en) * 2019-07-23 2021-01-27 Pai Lung Machinery Mill Co., Ltd. Weft knitting machine capable of changing yarn positions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148518A (en) * 1960-06-08 1964-09-15 Singer Co Multi-feed knitting machine
US3416332A (en) * 1965-08-02 1968-12-17 Dubied & Cie Sa E Patterning device for jacquard circular knitting machines
CN112176511A (en) * 2019-07-01 2021-01-05 佰龙机械厂股份有限公司 Weft knitting machine knitting structure with yarn position changeable
EP3770312A1 (en) * 2019-07-23 2021-01-27 Pai Lung Machinery Mill Co., Ltd. Weft knitting machine capable of changing yarn positions

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