Патент USA US2126196код для вставки
Aug. 9, 1938. R. H. LAWSON EI'AL 2,126,196 MECHANISM FOR AND METHOD OF EFFECTING‘CHANGES IN PLATING Original Filed April 16, 1929 ’ 3 Sheets-Sheet 2 K”??? @3 42/! 2.64515 \9 AV § 2 % , 3 Y 4 3 4 Invenia 2's . lloizewilillawqon @Z‘W?huive; 2-, . 2w 5, . , 37%, 11%, y-Jm/dznjys. Aug. 9, 1938. R. H. LAWSON El‘ AL 2,126,196 MECHAQISM 'FOR AND‘ METHOD OF EFFECTING CHANGES IN PLATING Original Filed April 16, 1929 3 Sheets-Sheet 3| Inve?zo 8's : RoZe-riLIiLaw(son, ri‘Fa/urjlf?iouiten 0*?4/ Patented Aug. v9, 1938 > 2,126,196 UNITED STATES PATENT ' OFFICE 2,126,196 MECHANISM FOR AND' METHOD OF EF FECTING CHANGES IN PLATING ' Robert H. Lawson, Pawtucket, and Arthur N. Gloutier, Lonsdale, R. I., assignors to Hemphill 7 Company, Central Falls, R. L, a corporation of Massachusetts Application April 16, 1929, Serial No. 355,559 Renewed June 23, 1937, 6 Claims. (01. 66-107) This invention relates to mechanism for and method of effecting changes in plating. ' _ In order that .the principle of the invention may be readily understood, we have in the ac ‘ , ‘ as'so-called sinkers or web‘holders. Herein'the reverse plating is effected in lines, bands, blocks, dots or other areas which are of precisely the in- ' 5 companying drawings disclosed one embodiment tended width. That is to say, by the mechanism and method of our invention, we are able, to make of means constituting said mechanism and will describe the best manner known to ‘us for prac reverse. plating of precisely a single needle or tising the method of the invention. , In said drawings: 10 ‘ 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 instrumen talities hereinafter referred to; Fig. 2 is a vertical central section of the con 15 struction 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 show ing one of the needles and the sinker or web 20 holder pertaining thereto, and also a jack pref needle wale in width, whereas heretofore it ‘has been exceedingly di?icult to make reverse plating lines or areas of a single needle‘ or single needle wale in width. We are also able to make reverse 10 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. , w " We have shown the invention as applied to a circular knitting machine of independent needle _ type, such,’ for example, as at Banner machine of erably employed therewith, said three ?gures rep the general; form disclosed in U. S. patent to 20 Joshua D. Hemphill, No. 933,443. .The needles resenting diiferent stages in the loop or stitch formation for normal plating; Figs. 6, "(and 8 are views corresponding to Figs.’ are desirably latch needles and are preferably operated in ‘usual manner, and two yarns are 25 3, 4 and 5 but representing corresponding posi tions of the needle in stitch formation for reverse plating; fed thereto in plating relation, preferably as shown in the said Reissue Patent. No. 16,584, and the tension is applied desirably to- the same thread > or yarn as is disclosed in the said reissue patent, and the other yarn or thread is fed either with of three needles and sinkers therefor employed out tension or with a markedly less tension. Al Fig. 9 is a perspective view on an enlarged scale‘ so in e?ecting 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 .35 the hooks thereof; Fig. 10,is va view similar to Fig. 9 but represent ing 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; ,' , though our invention is not limited to the appli cation of tension to the yarn or thread‘disclosed 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 35 yarn, and the upper or black yarn being fed with out tension or markedly less tension. der is indicated at i and the sinker cam ring bed ‘ is/indicated at 2. Fig. 11 is a view similar to Fig. 9 but represent ing normal plating as occurring at the ?rst and third needles and reverse plating as occurring at the second or middle needle; and ' Referring ?rst to Figs. 1 to 8, the needle cylin-, The needles 3 are located for 40 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 ?gures.‘ Beneath each sinker in the same groove therewith is lo 45 Fig. 11:: represents in side elevation the three needles shown in Fig._ 11 with the two yarns. cated a jack 6 having lengthwise sliding move- _ ‘within the hooks thereof. ' ment independent of that of the sinker. _ - In the reissue patent to Robert-‘H. Lawson, No. _ As shown most clearly in Fig. 1, the sinker cam 16,584, dated April 5, 1927, there is disclosed, ring is provided with three pathways, namely,>the 50 means for e?fecting reverse plating by the action» . outer pathway ‘I in which travel only the butts 8 of the jacks 6, the intermediate pathway 9 and ', ofvcasting off mechanism, whereby striping ex tending ‘lengthwise the, hosiery or‘ other knitted the innermost pathway Ill. The butts 8 of the “article is eiiiected,v Herein we have disclosed jacks ,6 travel either in the pathway ‘I or_ the means for e?ecting reverse plating through the action vof‘special instrumentalities, herein shown pathway 9 according to the control of the said jacks in a-manner similar to the control of‘ the 55 2 2,126,196 so-cailed diagonal or dial or jacquard Banner plating occupies a position further in radially than does the same sinker at the same location machines by which instrumentalities in the na ture of jacks act according to the desired pattern - when normal plating is to occur thereon. Each of the sinkers 5 of the entire series is to leave the instrumentalities in an outer path way or to advance the same to an inner pathway. shaped as shown in Figs. 3 to 8 inclusive. Each In the present mechanism at the point’ l0’ is of the full width of its sinker groove and rests upon its jack 6 which is also of the full width shown in Fig. 1, or at the point ‘diametrically op posite thereto, means in the nature of sliding of that groove. Each sinker is provided with the lower nib 21 which may be of usual construction, jacks act upon the predetermined butts 8 of de 10 sired jacks 6 to move them slightly inward, so that and above the same and suitably spaced there they will travel in the intermediate pathway 9. from it is provided with a nib 28. The upper edge Jacks 6, which are not so acted upon by said other, 29 of said nib 28 slopes upwardly as indicated, to a point 30, and outwardly beyond the point sliding jacks, are left to travel in the outer path way I. A type of means for effecting the selection 30 is a narrow downwardly extending throat 3| above which is the upper nib 32, the extreme top 15 of instrumentalities by sliding jacks is disclosed in the pending application of Lawson and Lawson, of which upper nib slopes downwardly and out Serial No. 145,512, filed November 1, 1926, Patent wardly as indicated at 33, and below the nib 32 is a downwardly and outwardly sloping and pref 1,897,130. - Any suitable pattern means may be provided 25 The two yarns indicated at T and NT respec 20 tively are introduced in a plating relation prefer ably 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 plating effected, normal plating occurring upon the upper yarn shown as black, being the non all the other needles. As shown most clearly in Fig. 1, the inner path way In is relatively wide in a direction radial to the needle cylinder, at H, which. is bounded at 30 the inner side by a part of the cam l2 and at 35 erably concaved guiding edge 34. pathway; such pattern means would act in ac cordance with the predetermined pattern so that only at the needles whose jacks 6 are guided or moved into the intermediate pathway 9 is reverse 20 to direct desired jacks 6 into the intermediate 25 tensioned 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 30 the outer side by the cam end l3 of the almost . is desired. The inclined throat 3| sloping down, completely circumferential guiding formation H. as shown, is provided mainly to get the stitches The guidingedge I5 of the cam I2 is succeeded back down to the level which the incipient stitches had when at the front or ‘inner end of the in a contraclockwise direction by the sharply out wardly sloping edge I6 terminatingvat a point [1 slope 29 of the sinker 5; ‘that is, to get the top 35 beyond which in a contraclockwise direction is the inwardly sloping edge I8. We have indi cated the knitting point at l9 and the casting off point at 20. The inner edge of the cam end 40 I3 is slightly curved as indicated at 2| and ex tends inward to a point 22 circumferentially be yond which, as indicated at 23, the formation ll slopes outwardly, being succeeded by a concentric edge extending about the greater part of the se 45 ries of sinkers. In 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| mm is provided upon each jack 5 in advance of its butt 8 never comes in normal plating in contact of the loops back down to the normal lower knit ting level, at which the loops would have been if the sloping edge 29 were not provided but had been level or ?at instead of wedge shaped. In normal plating the loops remain below or in 40 front of the upper nibs 33 as is evident from Figs. 3, 4 and 5, and also from Fig. 9; but in re verse plating the loops of both threads pass onto the top of the nib 32 and down the back edge of the same and the back edge of the sinker, as 45 is evident from an inspection of Figs. 6, 7 and 8 and of Fig. 10. The purpose of the invention is to obtain re verse plating at the precise desired needle wale or wales, to make (if desired) a reverse plating 50 with the outer end 25 of the stem or tail portion of its sinker 5. Each sinker is provided with a stripe, asingle needle wale only in width, and in stantly to return to normal plating; that is, in by the guiding edge of the pathway at that point. pending application ?led by Lawson and Serial No. 172,331, ?led March 3, 1927, disclosed a jack having a nib generally nib 32 and by which reverse plating is ' ~butt 26 which during normal plating is against accordance with the invention we have provided the outer edge of the pathway II and hence each > means whereby the reverse plating areas are pre cisely determined or limited or outlined. In a co 55 55 ‘sinker is in its outermost position as determined 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 60 with the end 25 of the corresponding sinker 5. During normal plating the butt 8 of every jack 9 is in the outer pathway 1. An inspection of Figs. 6, 7 and 8 showing the position of the parts for reverse. planting dis closes 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 70 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 in spection of Fig. 6, and a comparison of that ?gure 75 with Fig. 3 discloses that the sinker 5 for reverse Lawson, there is like the secured, but in the construction shown in that application the reverse plating is of va two needle width be cause means are not provided to restrict the same to a single needle wale. In other words, accord ing to said prior application, following reverse plating the two yarns are left to, return to normal 65 plating because of their natural tendency to do so, and it requires the width of the'next succeed ing needle wale to accomplish this or permit it to result. In the present invention, however, 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. Of course, the reverse plating areas may be of any desired number of needles or wales in width, but whatever the width, normal plating is permitted 75 3 2,126,196 to begin only upon the precise desired needle cordance with our invention, we reverse only on . wale and iscompelled to end upon the precise de sired needle wale, whether such reverse plating the side away from the knitting point. be one needle wale in width or more than one needle wale in width. , It is obvious from an inspection of Figs. 6, 'l, 8 that not only are the two threads reversed in position so that they move down the downwardly, outwardly inclined edge 34, but that the stitch is I . The hump de?ned 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 engag ing 'them before reversal of the yarns in the hook of the needle B’ by the adjarent sinker (in termediate sinkenFig. 11) can effect reversal of the yarns in'the book of the needle C. 10 Summarizing the preceding description: re 10 cast off at the lower part of said inclined edge. Referring to Figs. 9 to 11 inclusive, we have verse plating is eifected at . a needle wale by shown in- said ?gures perspectively, three succes causing yarns to be drawn over the downwardly sive needles and their sinkers. In Fig. 9, the nee dles are indicated at A, B and C respectively, and ‘and outwardly inclined edge of a sinker as by the needle BY’ over the intermediate sinker of 15 15 are accorded the same designation in Fig. 9a. In Figs. 9 and 9a, it is to be understood that Fig. 11, and normal plating is effected by causing normal plating only occurs. and it is to be also a needle such as the needle C, Fig. 11, drawing _understood that the knitting point is about one yarns over the downwardly and inwardly inclined and a half to two needles further to the left view-_ edge 29. The outwardly and downwardly in clined edge on the intermediate sinker, Fig. 11, 20 i ing Fig. 9 than is the needle C, , In Fig. 10, wherein reverse plating only occurs, causes the yarn to ride up' the'bill side of the the three needles are designated A’, B', C’, and hook whereas the downwardly and inwardly in obviously they may be the same identical needles‘ clined edge 29 causes the yarns to‘ ride up the indicated at A, B, C in Fig. 9 in subsequent courses shank side of the hook of the needle C, as a con 25 of the, work, or they may be another group of sequence of which the yarns are relatively r'e 25 three needles. The said needles A’, B’, C’ are versed in positio‘n in their respective needle hooks. The raised edge provided by the incline 29, serves similarly designated'in Fig. 10a. 1 _ In Fig. 11 there are designated three needles the additional function of engaging the yarns A, B’, C, and it is to be understood that normal and binding them in cooperation with the hook plating occurs upon the needle A, that reverse of the needle as the needle 0 before they would otherwise be engaged and bound if the hump plating occurs upon the needle B’, and that nor mal plating occurs upon the needle C. Said nee-' were not present in which-case the reversal ' of the yarns by the needle B’ drawing the yarns ‘ dles are similarly designated in Fig.‘ 110.. In the present. disclosure, and referring to a over the outwagdly and downwardly inclined edge needle at which‘ reverse’ plating is to occur, we of the intermediate sinker would cause the yarns do not turn or change from normal plating'to , likewise to reverse in the hook of the, needle “C. It is to be understood that the stitch or loop is reverse plating ‘by the sinker on the side of the needle which is nearest the knitting point, but we not loosened at the wale or wales ‘where reverse turn the yarns only by the sinker‘ on the other ' plating occurs. There is no perceptible looseness side of the needle, namely, the side furthest from of the stitches or loops in the wale or wales where~ 40 the knitting point. Thus we obtain a one needle . in reverse plating occurs‘ in accordance with our line of reverse plating or exact line of reverse invention. plating of any desired width. This is effected In Fig. 911 we have indicated at the needle B the upper edge of the nib 2d of the ‘sinker 5, thus because the two yarns are bound at the side of 45; the sinker in question, nearest the knitting point. The binding occurs between the hook of the nee dle and the inclined edge 2% of the sinker thereof whereat normalplating is returned to, That is to say, if reverse plating is to occur only on the 50 needle B’ (Fig. ii) 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 view As indicated inFig. 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 a reverse plated relation, thus the normal‘ plat ing by the needle 0 is not disturbed. by the re verse plating in the stitches knitted by the nee dles B’ which follows (in the knitting cycle)‘ the needle C in a process of knitting. This action‘ 65 occurs whatever the width of the reverse plating stripe or area whether the width be one needle wale or a plurality of needle wales, and a similar binding action occurs at the needle and its sinker 55 ing the sinker of the needle B’ in Fig. 11. just anterior to the needle whereat reverse plat— 70 ing is to begin or whereon it is to occur if it be upon a single needle only. Heretofore when re verse plating has been attempted by a sinker or instrumentality on a single needle only, it has been attempted only on the side nearest the knit? 75 ting point (with respect to that needle). In ac ‘ indicating the sloping or wedging vedge 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. ' Having thus described certain illustrative em bodiments of the invention, it is to be understood that although specific terms are employed, they are used in a generic and descriptive sense, and not for purposes of limitation, the scope of the invention being set forth in the following claims. We claim: 1. In ‘a knittingmachine of the independent needles type, a series of needles, means for feed ing two yarns thereto in a plating relation, a sinker like special instrumentality for each needlemov able transversely of the needle series, and having an edge formation cooperating in e?ecting re verse plating, a,jack located in the same groove as and beneath each instrumentality, and means to move said jacks-thereby to move the desired instrumentalities to cause the edge formations " thereof to co-act in effecting reverse‘ plating, in combination with means for controlling the needles and special instmmentalities to effect the knitting of normal plating. ‘ 2. In a hitting machine of the independent. 70 needle type, a series of needles, means for feed ing ,two yarns thereto in a plating relation, a. sinker like special instrumentality for each needle movable transversely of the needle series, said in .strumentalities and needles actini; to bind the 4 2,126,198 threads so that reverse plating occurs only at the actual needle or needles whose instrumentalities are moved transversely a distance in'excess of the normal movement required for normal plat ing, 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 instru 10 mentality, and means to move said lacks so as thereby to move desired lnstrumentalities in ei fecting reverse plating. 3. A method of knitting plated areas including feeding two yarns to the needles of a knitting ma 15 chine in a plating relation and effecting the knit ting of stitches, causing lnstrumentalities 00operating 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 instru mentality 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 other instrumentality acts upon the yams to pre vent reverse plating e?ected by the last men tioned instrumentality from causing reverse plat iing to be eifected at the wale knitted by a needle I located between the said last mentioned instru mentality and the instrumentality in advance thereof. - 5. A knitting machine having independent needles and cooperating lnstrumentalities for ef fecting the knitting of plated stitches, the instru 10 mentalities 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 e?ected at a wale where the plating relations 15 of the threads are governed by one of the said lnstrumentalities and, at a wale knitted immedi ately prior to the knitting of the wale ?rst men tioned, a second‘ instrumentality having a rela tively raised portion engages the yarns and 20 thereby prevents the reverse plating e?ected by the ?rst mentioned instrumentality extending beyond the yarns by the adjacent instrumentality in, the , the wale effected in the direction of the second direction of yarn supply can effect reversal of mentioned instrumentality. 6. A method of knitting plated areas including the yarns at the said needle whereat reversal of ing two yarns thereto in a plating relation, a feeding two yarns to the needles of a knitting machine in a plating relation and effecting the knitting of stitches, causing lnstrumentalities co-' operating with the needles to e?ect a reversal of sinker like special instrumentality for-each needle movable transversely of the needle series, whereby‘ the said needles, and causing an adjacent instru the yarns is not to occur. I 4. In a knitting machine of the independent needle type, a series of needles, means for feed normal plating occurs upon the needles whose said instrumentalities are moved transversely a the yarns at one or more of the wales knitted by mentality next in advance of a needle whereat reversal vof the yarns is not to occur, to act upon normal distance and reverse plating occurs upon . the yarns‘ before reversal of the yarns by the the needles whose said lnstrumentalities are adjacent instrumentality in the direction of yarn moved transversely a greater distance, said in v supply can effect reversal of the yarns at the said strumentalities having reverse-plating restrict needle whereat reversal of the yarns is not to ing formations-to engage the yarn or yarns each occur. of some of the said lnstrumentalities being so 40 ‘arranged. and controlled that one of the said in strumentalities immediately in advance of an ‘ I ROBERT H. LAWSON. ARTHUR N. CLOUTIER.