US2126196A - Mechanism for and method of effecting changes in plating - Google Patents

Mechanism for and method of effecting changes in plating Download PDF

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Publication number
US2126196A
US2126196A US355559A US35555929A US2126196A US 2126196 A US2126196 A US 2126196A US 355559 A US355559 A US 355559A US 35555929 A US35555929 A US 35555929A US 2126196 A US2126196 A US 2126196A
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US
United States
Prior art keywords
needle
plating
sinker
yarns
reverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US355559A
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English (en)
Inventor
Robert H Lawson
Arthur N Cloutier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hemphill Co
Original Assignee
Hemphill Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hemphill Co filed Critical Hemphill Co
Priority to US355559A priority Critical patent/US2126196A/en
Priority to DEH123764D priority patent/DE568894C/de
Priority to GB39858/29A priority patent/GB342095A/en
Application granted granted Critical
Publication of US2126196A publication Critical patent/US2126196A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/126—Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/02—Pile fabrics or articles having similar surface features
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
    • D04B9/34—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by plating

Definitions

  • This invention relates to mechanism for and method of effecting changes in plating.
  • we have in the accompanying drawings disclosed one embodiment of means constituting said mechanism and will describe the best manner known to us for practising the method of the invention.
  • v Fig. 1 is a plan view of the sinker cam ring of a circular knitting machine, the cap being re: moved to show the three pathways for instrumentalities hereinafter referred to;
  • Fig. 2 is a vertical central section of the construction shown in Fig. 1;
  • Figs. 3, 4 and 5 represent vertical transverse sections taken through the sinker cam ring and the upper end of the needle cylinder and showing one of the needles and the sinker or web holder pertaining thereto, and also a jack preferably employed therewith, said three figures representing diiferent stages in the loop or stitch formation for normal plating;
  • FIG. 6 "(and 8 are views corresponding to Figs. 3, 4 and 5 but representing corresponding positions of the needle in stitch formation for reverse plating;
  • Fig. 9 is a perspective view on an enlarged scale of three needles and sinkers therefor employed so in efiecting normal plating at each 'ofsaid needles and for the sake of clearness'representing the parts as widely laterally spaced;
  • Fig. 9a represents in side elevation the three needles shown in Fig. 9 with the two yarns within Fig. 10,is a view similar to Fig. 9 but representing reverse plating as occurring at each needle;
  • Fig. 10a represents in side elevation the three needles shown in Fig. 10 with the two yarns 40 within the hooks thereof;
  • Fig. 11 is a view similar to Fig. 9 but representing normal plating as occurring at the first and third needles and reverse plating as occurringat the second or middle needle;
  • Fig. 11 represents in side elevation the three needles shown in Fig. 11 with the two yarns. within the hooks thereof.
  • the reverse plating is effected in lines, bands, blocks, dots or other areas which are of precisely the intended width. That is to say, by the mechanism and method of our invention, we are able to make reverse. plating of precisely a single needle or needle wale in width, whereas heretofore it has been exceedingly diflicult to make reverse plating lines or areas of a single needle or single needle wale in width. We are also able to make reverse plating areas of any precise number of needle wales that are desired. In the present invention, we employ a special instrumentality for each needle so that the entire series of needles has associated therewith a corresponding number of sinkers.
  • the needles are desirably latch needles and are preferably operated in usual manner, and two yarns are fed thereto in plating relation, preferably as shown in the said Reissue Patent No. 16,584, and the tension is applied desirably tothe same thread or yarn as is disclosed in the said reissue patent, and the other yarn or thread is fed either without tension or with a markedly less tension.
  • our invention is not limited to the application of tension to the yarn or threaddisclosed as the tensioned one in said reissue patent, we preferably so apply the tension that the -'white' yarn (indicated in Figs. 3 and 6 as the lower yarn in the'hook of the needle) is the tensioned yarn, and the upper or black yarn being fed without tension or markedly less tension.
  • the needle cylinder is indicated at i and the sinker cam ring bed is/indicated at 2.
  • the needles 3 are located for usual sliding movement in the grooves 4.
  • the sinker gain bed is provided with usual radial grooves in each of which is a single sinker only, as indicated at 5v in the several figures. Beneath each sinker in the same groove therewith is located a jack 6 having lengthwise sliding movement independent of that of the sinker.
  • the sinker cam ring is provided with three pathways, namely, the outer pathway I in which travel only the butts 8 of the jacks 6, the intermediate pathway 9 and the innermost pathway Ill.
  • the butts 8 of the jacks ,6 travel either in the pathway I or the pathway 9 according to the control of the said jacks in a-manner similar to the control of the 5 so-cailed diagonal or dial or jacquard Banner machines by which instrumentalities in the nature of jacks act according to the desired pattern posite thereto, means in the nature of sliding jacks act upon the predetermined butts 8 of desired jacks 6 to move them slightly inward, so that they will travel in the intermediate pathway 9.
  • a type of means for effecting the selection of instrumentalities by sliding jacks is disclosed in the pending application of Lawson and Lawson, Serial No. 145,512, filed November 1, 1926, Patent 1,897,130.
  • Any suitable pattern means may be provided to direct desired jacks 6 into the intermediate pathway; such pattern means would act in accordance with the predetermined pattern so that only at the needles whose jacks 6 are guided or moved into the intermediate pathway 9 is reverse plating effected, normal plating occurring upon all the other needles.
  • the inner pathway In is relatively wide in a direction radial to the needle cylinder, at H, which. is bounded at the inner side by a part of the cam l2 and at the outer side by the cam end l3 of the almost completely circumferential guiding formation H.
  • the guidingedge I5 of the cam I2 is succeeded in a contraclockwise direction by the sharply outwardly sloping edge I6 terminating at a point [1 beyond which in a contraclockwise direction is the inwardly sloping edge I8.
  • the inner edge of the cam end I3 is slightly curved as indicated at 2
  • Figs. 3, 4 and 5 are shown the positions of the sinkers 5 and jacks 6 during normal plating, and it will be evident that the shoulder 2
  • Each sinker is provided with a -butt 26 which during normal plating is against the outer edge of the pathway II and hence each sinker is in its outermost position as determined by the guiding edge of the pathway at that point. Therefore, normal plating occurs upon each sinker unless it is moved inwardly at some point by engagement of the shoulder 24 of the jack 6 with the end 25 of the corresponding sinker 5.
  • the butt 8 of every jack 9 is in the outer pathway 1.
  • FIG. 6 An inspection of Figs. 6, 7 and 8 showing the position of the parts for reverse. planting discloses that the butt I of the jack 6 for reverse plating has been brought into the intermediate pathway 3. Therefore, at a suitable point, the shoulder 24 of that jack contacts with the end 25 of the corresponding sinker 5 and gives the said sinker a slight inward movement that would not be imparted by the outer guiding edge of the inner pathway II. This is evident from an inspection of Fig. 6, and a comparison of that figure with Fig. 3 discloses that the sinker 5 for reverse plating occupies a position further in radially than does the same sinker at the same location when normal plating is to occur thereon.
  • Each of the sinkers 5 of the entire series is shaped as shown in Figs. 3 to 8 inclusive. Each is of the full width of its sinker groove and rests upon its jack 6 which is also of the full width of that groove.
  • Each sinker is provided with the lower nib 21 which may be of usual construction, and above the same and suitably spaced therefrom it is provided with a nib 28.
  • the upper edge 29 of said nib 28 slopes upwardly as indicated, to a point 30, and outwardly beyond the point 30 is a narrow downwardly extending throat 3
  • the two yarns indicated at T and NT respectively are introduced in a plating relation preferably in the manner disclosed in the said reissue patent to Lawson, No. 16,584, the lower yarn, shown as white, being the tensioned yarn and the upper yarn shown as black, being the nontensioned yarn.
  • the front incline 29 of the sinker 5 insures the pressing of the tensioned yarn T inwardly against the needle shank 3 so as to insure the continuation of normal plating up to the very needle wale where reverse plating is desired.
  • sloping down is provided mainly to get the stitches back down to the level which the incipient stitches had when at the front or inner end of the slope 29 of the sinker 5; that is, to get the top of the loops back down to the normal lower knitting level, at which the loops would have been if the sloping edge 29 were not provided but had been level or fiat instead of wedge shaped.
  • the purpose of the invention is to obtain reverse plating at the precise desired needle wale or wales, to make (if desired) a reverse plating stripe, asingle needle wale only in width, and instantly to return to normal plating; that is, in accordance with the invention we have provided means whereby the reverse plating areas are precisely determined or limited or outlined.
  • a jack having a nib generally like the nib 32 and by which reverse plating is secured, but in the construction shown in that application the reverse plating is of a two needle width because means are not provided to restrict the same to a single needle wale.
  • the reverse plating may be of a single needle width or wale only, and the yarns are compelled to return to normal .plating for the very next needle wale.
  • the reverse plating areas may be of any desired number of needles or wales in width, but
  • normal plating is permitted 75 to begin only upon the precise desired needle wale and iscompelled to end upon the precise desired needle wale, whether such reverse plating be one needle wale in width or more than one needle wale in width.
  • Figs. 9 to 11 inclusive we have shown insaid figures perspectively, three successive needles and their sinkers.
  • the needles are indicated at A, B and C respectively, and are accorded the same designation in Fig. 9a.
  • Figs. 9 and 9a it is to be understood that normal plating only occurs. and it is to be also understood that the knitting point is about one and a half to two needles further to the left viewi ing Fig. 9 than is the needle C,
  • Fig. 11 there are designated three needles A, B, C, and it is to be understood that normal plating occurs upon the needle A, that reverse plating occurs upon the needle B, and that normal plating occurs upon the needle C. Said nee-' dles are similarly designated in Fig. 110..
  • the binding will occur between the needle C and its own sinker t at the inclined edge 29 thereof.
  • Reverse plating is effected at the inclined edge 3d of the sinker of the needle B and occurs at the near side of that edge viewing the sinker of the needle B in Fig. 11.
  • the yarns are knitted by the needle C in a normal plating relation and the yarns are knitted by the adjacent needle B in needle C in a process of knitting.
  • the hump defined by the point 30 on each sinker raises the edge of the sinker over which the yarns are drawn as by the needle 0, Fig. 11, which hump thus acts upon the yarns by engaging 'them before reversal of the yarns in the hook of the needle B by the adjarent sinker (intermediate sinkenFig. 11) can effect reversal of the yarns in'the book of the needle C.
  • reverse plating is eifected at a needle wale by causing yarns to be drawn over the downwardly and outwardly inclined edge of a sinker as by yarns over the downwardly and inwardly inclined edge 29.
  • the outwardly and downwardly inclined edge on the intermediate sinker, Fig. 11 causes the yarn to ride up' the'bill side of the hook whereas the downwardly and inwardly inclined edge 29 causes the yarns to ride up the shank side of the hook of the needle C, as a consequence of which the yarns are relatively r'eversed in position in their respective needle hooks.
  • the raised edge provided by the incline 29, serves the additional function of engaging the yarns and binding them in cooperation with the hook of the needle as the needle 0 before they would otherwise be engaged and bound if the hump were not present in which-case the reversal likewise to reverse in the hook of the, needle C.
  • Fig. 911 we have indicated at the needle B the upper edge of the nib 2d of the sinker 5, thus indicating the sloping or wedging edge 2d and the downwardly sloping throat ti, and in Figs. 10a and lid at the needle B we have indicated the back sloping edge of the sinker at Ml.
  • a series of needles means for feeding two yarns thereto in a plating relation, a sinker like special instrumentality for each needlemovable transversely of the needle series, and having an edge formation cooperating in efiecting reverse plating, a,jack located in the same groove as and beneath each instrumentality, and means to move said jacks-thereby to move the desired cordance with our invention
  • each of said lnstrumentalities having at its forward part a binding edge for the threads and having a top nib, over the top and down back of which at least one of the threads passes in reverse plating, and a jack for each such instrumentality, and means to move said lacks so as thereby to move desired ln
  • a method of knitting plated areas including feeding two yarns to the needles of a knitting machine in a plating relation and effecting the knitting of stitches, causing lnstrumentalities 00-- operating with the needles to eifect a reversal of the yarns at one or more of the wales knitted by the said needles, and causing an adjacent instrumentality next in advance of a needle whereat reversal of the yarns is not to occur, to act upon the yarns by engaging them before reversal of the yarns by the adjacent instrumentality in, the direction of yarn supply can effect reversal of the yarns at the said needle whereat reversal of the yarns is not to occur.
  • a series of needles means for feeding two yarns thereto in a plating relation, a sinker like special instrumentality for-each needle movable transversely of the needle series, whereby normal plating occurs upon the needles whose said instrumentalities are moved transversely a normal distance and reverse plating occurs upon the needles whose said lnstrumentalities are moved transversely a greater distance, said instrumentalities having reverse-plating restricting formations-to engage the yarn or yarns each of some of the said lnstrumentalities being so arranged.
  • a knitting machine having independent needles and cooperating lnstrumentalities for effecting the knitting of plated stitches, the instrumentalities being constructed to effect normal plating at some wales and reverse plating at other wales, the construction and operation of the said lnstrumentalities being such that reverse plating is eflected at a wale where the plating relations of the threads are governed by one of the said lnstrumentalities and, at a wale knitted immediately prior to the knitting of the wale first mentioned, a second instrumentality having a relatively raised portion engages the yarns and thereby prevents the reverse plating efiected by the first mentioned instrumentality extending beyond the wale effected in the direction of the second the yarns before reversal of the yarns by the adjacent instrumentality in the direction of yarn v supply can effect reversal of the yarns at the said needle whereat reversal of the yarns is not to occur.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)
US355559A 1929-04-16 1929-04-16 Mechanism for and method of effecting changes in plating Expired - Lifetime US2126196A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US355559A US2126196A (en) 1929-04-16 1929-04-16 Mechanism for and method of effecting changes in plating
DEH123764D DE568894C (de) 1929-04-16 1929-10-18 Verfahren und Platine zum Stricken von Umkehrplattierung auf Rundstrickmaschinen
GB39858/29A GB342095A (en) 1929-04-16 1929-12-31 Improved means for and method of effecting changes in plating on knitting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US355559A US2126196A (en) 1929-04-16 1929-04-16 Mechanism for and method of effecting changes in plating

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US2126196A true US2126196A (en) 1938-08-09

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US355559A Expired - Lifetime US2126196A (en) 1929-04-16 1929-04-16 Mechanism for and method of effecting changes in plating

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DE (1) DE568894C (de)
GB (1) GB342095A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444503A (en) * 1945-10-12 1948-07-06 James L Getaz Reverse plating of knitting fabrics
US2761302A (en) * 1952-04-24 1956-09-04 Nebel Max Circular knitting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444503A (en) * 1945-10-12 1948-07-06 James L Getaz Reverse plating of knitting fabrics
US2761302A (en) * 1952-04-24 1956-09-04 Nebel Max Circular knitting machine

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Publication number Publication date
DE568894C (de) 1933-01-25
GB342095A (en) 1931-01-29

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