Патент USA US2112610код для вставки
March 29,1938. _ H.W.YSH’ERMAN _ ~ 2,112,610 KNlTTING MACHINE YARN 'CONTR'OL Filed Nov. 24, 1936 ‘I ' 9 Shegts-Sheet’l ' March 29, 1938. ' H. w. SHERMAN ‘ , 2,112,610 KNl'TT'lNG MACHINE YARN CONTROL Filed Nov. 24, 1936 gsheets-sheet 2 L‘ > - INVENTOR: Hear W?lwrmmu B _ ATTORNEY ' ‘ ' . March 29, 1938. - VH. w. SHERM-AN _ ‘2,112,310 KNITTING MACHINE‘ YARN CONTROL 7 Filed Nov. 24, 1956 9 SheetS-Sheet z A TTORNEY. March 2.9, 1938; - H. w. SHER;MAN‘ ' 2,112,610 KNITTING MACHINE kARN CONTROL ‘ Filed NOV. 24, 1936 _ > 9 SheetSfSheet 4 FlE--5 L //4;/ ’ l -’ . i 4%; ’ . O ’ o o \ o 5 0'6 L5 06 79 wk \ ' 1 \ I . 5295 77107106 lien , INVENTOR.‘ A ATTORN '7)’. I _ March 29, 1938. H. W. SHERMAN 2,112,610 KNITTING MACHINE YARN CONTROL Filed NOV. 24, 1936 FlE-_E_ 9 Sheets-Sheet s, March 29,- 1938. 7 2,112,610 H. w. SHERMAN., KNITTING MACHINE YARN CONTROL Filed Nov. 24, 1936 >16 / 3.:3/ 9 Sheets-Sheet 6 IDLZ D 1 I I BY ATTORNEY’. -March 29, 1938. - H. w. SHERMANv 2,112,610 KNITTING ~IVIAQH'IIIINE YARN CONTROL Filed Nov. 24-, 1956 ; 1E 9 Sheets-Sheet 7 , 7.97711 FlEmu-L?Q 72 1/ 76 - * , 62 01 " FlE-JEL. '57 28 Ll. ‘ INVENTOR.‘ BY ATTORNEK _ _ March 29, 1938. H. w. SHERMAN 2,112,610 KNITTING MACHINE YARN CONTROL Filed Nov; 24, 1936 .- 9 Sheets-Sheet 8 ' INVEN TOR: ‘ 11am? PIX/Sherwin; March 29, 1938; 2,112,510 H. W. SHERMAN KNITTING MACHINE YARN CONTROL Filed Nov. 24, 1956 9 Sheets-Sheet 9 . _ INVEN TOR.‘ ATTORNEY. Patented‘ Mar. 29, ‘1938 2,112,610 PATENT OFFICE Y’ - UNITED STATES 2,112,610 KNITTING MACIHNE YARN CONTROL Henry W. Sherman, Reading, Pa. Application November 24, 1936, Serial No. 112,448 10 Claims. (01. 66-127) My invention relates to novel means for ma nipulating yarns in knitting machines, and par ticularly to means for manipulating the yarns of a full-fashioned stocking blank to doubly reinforce an area knitted. by the so-called alternating-car rier method. ‘ In a full-fashioned stocking blank'having the‘ so-called heel-in-heel areas, there are the usual body web of single layer thickness, and the upper heel areas each of triple thickness. If the body web be produced» by a single main carrier, then with two extra. carriers laying yarns in each upper heel-in-heel area, there are ?ve carriers in all, working from the one friction rod 15 in machines as hereinbefore employed. , If the body web be produced by three carriers operating in recurrent sequence, under the so called "ring1ess,” principle, there will'then be a total of seven carriers required under former prac 20 tices to produce the upper heel-in-heel area of the blank, but since three of the carriers are operated sequentially by a single friction box, the heat of friction between the friction boxes and the rod is substantially the same as when the body web 25 is produced by a single main carrieri ‘ ' justable in the relation of its yarncarrier'bars and stops. ' Another object of the invention is to increase the capacity of a machine to handle many yarns, as by operating a plurality of yarn carriers from 5 one friction box or like means for'conne'cting the carriers to an actuating means, whereby to render the machine more ?exible in the variety of operations it may effect without material change in, or substitution of,.its yarn-manipulat ing or other parts. _ Another object of the invention is to so operate a plurality of yarn carriers by only one friction box, and to so positively move or reciprocate each of these carriers in both directions in laying yarn to the loop-forming mechanism of a knitting'ma chine, as to ensure against asynchronous opera tion of the carriers, and to avoid the production of defective fabric and the expense and delay caused by stoppages of the machine. 20 With these and other advantages incident to a utilization of the improvement, the invention comprises the parts and combinations thereof herein set forth and claimed, with ‘the under standing that the several necessary elements may '25 In either ‘case, under modern high-speed pro be varied in size, texture, relation, combination, duction‘ methods, either the ?ve carriers, in the operation and other features without departing from the spirit and scope of the invention which for purposes of explanation is made the subject one instance, or the seven carriers in the other instancecau‘se excessive heating of the. friction 30 rod. of illustration. ' In the drawings: '> Also, in the feature whereby seven carriers op -Figure 1 is a top plan view having distance erated by ?ve friction boxes are required to lay the‘ yarns in the upper .heel-in-heel areas, or 1 breaks, of a substantial portion of a full-fashioned these carriers are all laying silk yarn, a sufficient knitting machine constructed in accordance with number of further carriers is‘ not permitted for the invention; the view being taken from portions other uses, such as laying cotton yarn, placing a thereof intermediate the ends of the machine to-' colored yarn in the picot edge or laying a heavy yarn in the welt. , An object of the invention'is to avoid the ob 40 jections to prior devices of the above-indicated character by mechanism that is simple and dur able in construction, economical to manufacture, effective in operation and adaptable to a usual machine with substantially minimum change. Another object of the invention is to reduce the heat of friction incident to the use of a plurality of carriers, such as the ?ve or seven carriers above mentioned, for use in the upper heel-in-heel areas, 50 each operated by a separate friction box'or unit mounted on one friction rod or actuator. Another object of the invention is to provide certain interchangeable parts, to reduce the num '' ber of elements, and to facilitatemanufacture and 55 assembly rendering the device more readily ad .30 ward the left end portions, as viewedv from the front, parts being omitted; _ Fig. 2 is a view, similar to Fig. l of portions of the machine from intermediate portions to right end portions thereof, which when placed in proper' relation to Fig. 1 completes a composite top plan view of the machine, with the exceptions noted; Fig. 3 is an enlarged detail view taken along a line 3-3 of Fig. l;_ , ~ - Fig. 4 is a view in elevation, taken substantially along the line 4-4of Fig. 3; ' Fig. 5 is a sectional view taken substantially along the line 5—-5 of Fig. 4; . Fig. 6 is a view, on a reduced scale, similar to Fig. 5, showing parts thereof in di?erent'oper ative positions, parts being omitted; Fig. 7' is a view taken along the line 1--1 of Fig. 5; Fig. 8 is a diagram of a full-fashioned'stocking 55 v _ 2 ' I ' ‘ » I Y 2,112,610 leg blank, including a portion as produced by the invention; ‘‘ , Fig. 9 is a diagram of yarns as they are laid in ,a' broken line area D of Fig. 8; Fig.10 is a magnified view showing the loop formation at one side of the blank in a broken line area E including a portion of the area D; Fig. 11 is a view on a reduced scale similar to Ill and center frames l2, which are connected by various members extending longitudinally of the machine, but ‘only two of which, a front beam I4 and a back beam I5, are shown. ' I The machine further comprises a cam shaft I8 a supported by the frames I 8 and I2, yarn-carrier bars I- to 1, inclusive, narrowing carriages G for supporting carrier bar end stops S adjacent to ' Fig. 4 showing the parts as positioned at one stage . each end of the machine, cam and lever assem—, '10 of operation; 7 Fig. 12 is 'a- view on a slightly enlarged scale taken substantially along a line I2-I2 of Fig. 11, parts being omitted; ‘ Fig. 13 is a view'similar to Fig. 11', showing the 15 parts in other positions; . blies 2I and 22, also adjacent to the ends of the machine, for operating the narrowing carriages G fromthe cam shaft I8, narrowing lift cam and lever assemblies 24 associated with the narrowing carriages G, shogging cams 25 for the cam shaft I8, a friction rod 28, acarriage structure M for controlling reinforced selvage stops for all of the stantially along the line I4—I4 of Fig. 13, parts 'carrier bars but in which only the stops I6 and ‘Fig. 14 is a view similar to, Fig. 12 taken sub being omitted; . _ v v ‘ Fig. 15 is a view similar to Fig; 11, showing the 20 parts in further positions; Fig. 16 is a view similar to Fig. 14 taken sub stantially along the line I6—I6 of Fig. 15; and Figs. 1'7 to 22, inclusive, are sequence diagrams showing yarn carrier bars, dogs thereon, end 25 stops therefor and elements for controlling or operating the bars, the parts being shown in I1 associated with dogs 26 and 21 on the carrier bars 6 and 1, respectively, Fig. 17, are of interest herein, a selector mechanism U for connecting ~ carrier bars to, and disconnecting them from, the friction rod 28, a cam and lever assembly 34 for operating the selector mechanism U, and a pat tern device or chain motion mechanism P for controlling certain members or mechanisms to operate in predetermined sequence. . The selector mechanism U is shown and de'— In practicing the invention with a.machine . scribed in detail in copending application, Serial for producing “rlngless” full-fashioned stocking No. 677,443, ?led June 24, 1933 by Gustav Gas 30 blanks,v a multi-carrier selector, which is not of trich on “Yarn ‘feeding mechanism for straight 30' knitting machines”, and need" not be furtherv itself a part of this invention, comprises a fric tion box including elements for control by a described herein, except to state that it com pattern mechanism to connect the box to, and prises a special alternating-carrier friction box 38, including a slide 38 for cooperation with dogs disconnect it from, the separate body-yarn‘car H, 42 and 43 on carrier bars I, 2 and 3, re 35 > ' 35 riers in sequence. various positions and relations of - operation. ' Two other friction boxes are each provided with a slide for'connecting the box to a carrier for laying a reinforcing yarn different from the body yarns and which, in this instance is the larger 40 or main heel area reinforcing yarn. These other friction boxes are also each provided with a cam operated lever for selectively connecting each body-yarn carrier to the box, when it is not lay ing a body yarn to the loop-forming mechanism, 45 ‘to lay the second, or so-called “heel-in-heel” reinforcing yarn.‘ The stops for the various car rier bars, and the friction-box slide connecting dogs on these bars, are arranged such that all of the carriers are reciprocated the proper dis tances, which may be selectively changed. In this structure, all of the carrier bars‘ are positively actuated by the actuator or friction box means in both directions of reciprocation in synchronous time relation; the reverse positive movement being distinguished, for instance, from the movement in a device where a movable mem her is positively moved by an actuator against the action of a spring in one direction and by the spring in the opposite direction upon the spectively, to connect the latter to, and dis- ' connect the same from, the friction rod 28 where-_ ' by corresponding separate yarns may be laid to the loop-forming mechanism of the machine in repeated numerical sequence in accordance with 40 the “ringless” stocking knitting principle. Splicing friction boxes L and R, shown .gen orally in Figs. 1 and 2, and parts of which are shown in Figs. 17 to 22, inclusive, are substantial duplicates; the box L including an arm 45 for cooperation with dogs LI, L2 and L3, on the car rier bars I,_ 2 and 3, respectively,.and the box R ’ including an ,arm 46 for‘ cooperation with dogs RI, R2 and R3 .on the carrier bars, I, 2 and 3, . respectively. The box L further includes a slide 48 having a lug 49 for cooperation with dogs L1 and 1L on>the carrier bar 1. Similarly, the box 50' R includes a slide 5I having a lug 52 for-coopera tion with dogs R6 and. GR on the carrier bar 6. Referring particularly to Figs. 3 to '1, inclusive, 1 the' box L comprises a 'housing 51, including usual friction pads 58 and shoes 59 held to the friction rod 28 by a bowed leaf spring 6|, and'an operating handle or cam lever 62 pivotally mount withdrawal of the actuator, in which interference ' ed on a pin 63 journaled in a clamp member 64 associated with the housing 51. with the action of the spring may. occur inde The arm 45 is secured, as by screws 65, to one pendently of the action of ‘the actuator. The drawings illustrate only those parts of a arm 66 of a lever 61 pivotally mounted on a shaft‘ 68 and having another arm 1I carrying a roller “Reading” full fashioned stocking knitting ma chine necessary for an understanding of the in - vention, Loop-forming mechanism and other 65 parts and the operation thereof are well known. as shown and described in the “Reading” Full Fashioned ‘Knitting Machine Catalogue, copy right 1935, and published by the Textile Machine Works, Reading, Pennsylvania. ' Referring to Figs. 1 and 2 for a general outline of a machine for which the invention is adapted, a base support or framework, on which the op 75 erating parts are mounted, comprises. end frames follower 12 for coaction with a stationary cam 65 bar 13. The latter is formed as a clamp mem ber, as shown in Fig. 5, cooperating with a com plementary clamp member 15 formed to receive, and clamped by screws 14 against, a stationary rod support 16 secured to the machine frame. The arm 45, for cooperation with'the three carrier dogs LI,‘ L2 and L3, has a free end por tion 11 to accurately fit in a top recess between a pair of projections on each of these dogs, and a standard 18 supporting a screw 19, which, as 75 2,112,610 - 3 indicated in Fig. 6, is for insertion into a screw threaded apertured portion of one side of the box housing whereby to lock the arm 45 in in operative position. The arm 45 operates between side projections 82 which reinforce the 'arm' against side thrust when the box is moving a car rier bar. The box L is provided with another pair of side projections 83 like the projections 82 in order that it may be interchangeable with the friction box R. In other words, the housings R and L are duplicates, and when assembled, the corresponding lever 61 is mounted so that the arm 45 operates either between the projections 82 or the projections 83 depending on whether The arm 45 is adapted to be dropped into a slot in any one of the dogs LI, L2, and L3, and the arm 46 is adapted tolbe dropped into a slot in any one of the dogs RI, R2 and R3, by action of the follower ‘I2 on the cam ‘I3 at the beginning Hook-like arms 84 embrace a. back narrowing shaft 85 and are secured, as by screws 86, to Fig. 12 hits the arm 45, the latter serves as a of a stroke.\ By not being completely removed, the arm 45 or 46, as the case may be, acts as a rebound stop until the next three-thread carrier bar I, 2 or 3 moves one of its dogs under the arm 45 or 46 which is thereby fully released. This 10~ action is clearly exempli?ed in Figs. 11 to 16,111 elusive, in Figs. 11 and 12 of which the arm 45 is in the slot of the dog L3, in the position occu pied at the end of a stroke of the bar 3. From the time the parts are positioned as in 15 the assembled structure is to be used in the place ' of the box R or the box L. Figslll and 12 until the dog LI on the bar I of members 81 having split-collar cla‘mp portions rebound stop for the carrier bar 3, after which the dog LI engages, and exerts a camming action 88 secured by screws 89 to sleeves 9I integral with the box housing at the‘ ends thereof. This struc slot in the dog L3. ture acts as a slide guide for the box preventing its turning about the friction rod. carrier bar ‘I with its corresponding stop S. In producing a portion of the blank with which 25 this invention is concerned, the yarn-manipulat toward the cam ‘I3 and the free end 11 of the arm 45 toward the dogs RI, R2 and R3 on the cated in Figs. 17 to 22, inclusive. ‘ carrier bars I, 2 and 3, respectively. . -In the inoperative position of the box L, corre sponding to a position ofits carriers outside the knitting ?eld, the lever I02 is turned through an angle of approximately one hundred and eighty degrees from its position of Fig. 1, for hooked holding relation to a lug I04 on the clamp por tion 88. ing elements are actuated in sequence, as indi - > As seen in Fig. 1'7, the carrier bars have reached As better seen in Figs. 1, 2 and 3, a stationary support 91 is clamped to the rod ‘I6, as by a screw or screws 98, for pivotally supporting a hook-like lever I02 on a pin I03. 40 The arm 45 is then moved, ‘ to the end of a stroke, as indicated in Figs. 15 v and 16, determined by the engagement of the spring 93 to a pin 94 carried by a projection 95 on one .of the members 81 to bias the follower ‘I2 An arm 92 on the lever 61 is connected by a 710 against the arm 45, to raise the latter out of the 4 ' As indicated in Fig. 7, in connection with the dog L3, each of the dogs LI, L2, L3, RI, R2 and R3, is secured to the corresponding carrier bar by a pin and slot connection I06 whereby the 45 longitudinal position of the dog on the bar may be adjustably?xe'd, after adjustment of a screw I01 in a member>l08 ?xed to the bar, as by rivet ing or otherwise. The dog ‘IL and the dog R6 are provided with 50 adjustable contact screws I I4 for engagement by the slides 48 and 5|, respectively. Referring to Fig. 8, a full fashioned‘ stocking the ends of a movement from right to left in 30 which the carrier bar 3 has been moved by the slide 39 of the friction box 38 of the selector mechanism U to lay a yarn to the loop forming mechanism of the machine from edge to edge of a portion of the blank between the tops of the . SI areas K and the course J, the carrier bars 2' and ‘I have been'moved by the arm 45 and the slide 48, respectively, from‘ the inside edge of the left reinforcement to the left selvage edge by the left splicing friction box L, and the carrier bars I 40 and 6 have been moved from the right selvage edge to a position at the inside edge of the right reinforcement by the arm 46 and the slide 5|, respectively. The movable connecting arm 46 of the right hand box R remains in ‘engagement 45 with the carrier bar I. The movable connecting arm 45 of the left friction box L is shown as hav- . ing been disengaged from‘ the carrier bar 2 and. moved beyond the dogs L2 and L3 on the carrier ‘bars 2 and 3, respectively. 4 50 The arms 5I and 48 for connecting the splic ing friction boxes R and L to the splicing carrier leg blank a portion of which the above-described ’ bars 6 and ‘I, respectively, remain in engagement machine is capable of knitting, comprises a welt 55 W, a leg portion C, reinforced heel areas Hand heel-in-heel reinforced areas K; the machine be-' ing operative according tothe invention to knit, from the ?rst course of ‘the welt W, to an instep with the splicing carrier bars at all times during the usual course laying movements thereof, the . dogs R6, 6R, L‘I and ‘IL on the splicing carrier course indicated by a dot-and-da'sh line J, after bars being so positioned as to provide lost mo tion between the friction boxes R and L and the carrier. bars. The arms 45 and 46 for connecting 60 which the machine is stopped and adjusted,either by usual and well-known means or other means the alternating carrier bars I, 2 or -3 for laying the heel-in-heel reinforcements K, above the not constituting part of this invention to ?nish the blank. » . _ As indicated diagrammatically in Figs. 9 and 65 10, the blank at the areas K, above the course J, is made up of three separate body yarns Ia, 2a and 3a, and two reinforcing yarns 6a and ‘la, of which the yarns 6a and ‘la occupy the areas H, and the main body yarns Ia, 2a and 3a are not 70 only laid to the knitting head of the machine in full ‘courses from selvage edge to selvage edge, but are each brought back into the fabric be tween the triple spaced full courses thereof in a series of short courses a: occupying the heel-ini .75 heel areas K to the start of the heel tab areas. course J, are raised at the end of each outward travel of the splicing friction boxes R and L so that the heel-in-heel carrier bars, which start their outward movement before the usual splicing carrier bars, will be disengaged from the corre sponding splicing friction box R or L before the corresponding splicing carrier bar 6 or ‘I has completed its yarn laying movement. In moving from left to right toward the posi tions ofFig. 18, the carrier bar 2 and the left splicing carrier bar ‘I have been mov'ed'by the selector mechanism U and the box L, respec tively, to complete a portion of their yarn lay 5 70 4 2,112,610 carrier bar 3 and moved beyond the dogs RI and ing strokes before the connecting arm 45 of the left hand box L has been moved to a position where it will engage carrier bar 3 for reinforc R3 on the carrier bars I and 3. In the above-described structure, friction rods ing the left selvage edge. and friction boxes are employed, but obviously ' As .seen in Fig. 18; all the carrier bars have reached the ends of their movement from left tov right in which the carrier bar 2 has been moved by the slide 39, the carrier bars 3 and 1 any substitution for a. friction rod or actuator having movement relative to, or beyond, a box or unit when a carrier engages a stop is contem plated within the invention, whereby if latches have been moved by the left hand splicing fric- ' or other means are employed, advantages com tion box L and carrier bars I and 6 have been parable to the above-mentioned reduction of 10 frictional heat, such as similar reduction of heat in. the latches and wear of the latches, will be moved by the right hand splicing friction box R. Fig. 18 also shows that the connecting arm 46 of the right hand box R has been disengaged from the car-rier bar I and moved beyond the obtained. ' > . The improvements speci?cally shown and de 15 dogs on the carrier bars I and'2 so that in they ‘ scribed by which the above-mentioned results are 15 next right to left movement of the carrier bars, the carrier bar, engaged by the selector mecha nism U, will be moved through a portion of its yarn‘laying stroke before the right hand fric tion box R will engage the remaining alternating carrier. Thus it will be seen that in moving the carrier bars, for laying the main body yarn, in advance of the carrier bars laying the upper heel in-heel splicing yarns, the splicing friction boxes will not interfere with the usual operation of the selector ‘mechanism. As seen in Fig. 19, the carrier bars have reached obtained, may be modi?ed without departing from the invention as set forth in the speci?ca tion and claims. I claim: _ . 1. vIn a straight knitting machine, reciprocable 20 yarn-carrier bars, stops for the bars, friction rod means, mechanism including a ?rst friction box for selectively connecting certain carrier bars to the box for movement thereby to lay lengths of separate yarns to the loop-forming mechanism of the machine in ‘recurrent sequence, and means including a second friction box‘, a stationary cam the end of their right to left movement in which > disposed adjacent to the path of travel of the second box, and means including a lever pivotal the carrier bar I has been moved by the slide 39, '30 the carrier bars 3 and ‘I have been moved by the ly mounted on the second box for operation by the cam to disconnect the separate yarn-carrier bars _ left hand splicing friction box L, against their from, and to connect the same to, the second box end stops and the carrier bars 2 and 6 have been moved by the right hand splicing friction box R, for positive movementthereby in both directions the bars 2 and 6 coming ,to a stop when the dog , to lay further lengths of said separate yarns to the loop-forming mechanism in successive‘ 35 26 on the bar 6 engages the reinforced selvage stop I8. Fig. 19 also shows that the connecting arm 45 of the left hand splicing box L has been disengaged from the carrier bar 3 and moved beyond the dogs LI and L3 on the carrier bars I 40 and 3, respectively. In Fig. 20, the carrier bars have reached the end of- their left to right movement in which the car ier bar 3 has been moved by the slide 39, the carfirrier bars I and ‘I have been moved by the 45 left hand splicing friction box L, both of these bars coming .to a stop by engagement of the dog 21 on the carrier bar ‘I with its reinforced selvage stop IT. The carrier bars 2 and 6 have been moved by the right hand splicing friction _box R. 50 against their right end stops, the connecting arm 46 of the right friction box R being shown dis engaged from the carrier bar 2 and moved be yond the dogs R2 and R3 on the carrier bars. 2 and 3, respectively. In Fig. 21, the carrier bars have reached the ends of their right to left movement in which the carrier bar 2 has been moved by the slide 33, the carrier bars 3 and 6 have been moved by the right splicing friction box R and the carrier bars 60 I and ‘I have been moved by the left splicing fric—. tion box L. The connecting arm 45 of the left friction box L_is shown as having been disengaged from the carrier bar I and moved beyond the ‘dogs LI and L2 on the carrier bars I and 2, respectively. In Fig. 22, the carrier bars have reached the' courses. . _ 2. In ,a full-fashioned ‘stocking knitting ma chine, reciprocable yarn-carrier bars, stops for the bars, friction rod means, mechanism includ ing a ?rst friction box for connecting to the box 40' and releasing therefrom three of- said bars in re current sequence to lay lengths of separate yarns to the loop-forming mechanism of the machine, and means including a second friction box, a sta tionary cam disposed adjacent to the path of travel of the second box, and a member movably mounted on the second box for operation by the cam to disconnect the three bars from the'second box in the sequence in which they are connected to the ?rst box and to connect the three bars to 50 the second box in the sequence in which they are disconnected from the first box for'positive move ment by the second box in both directions to lay further lengths ‘of said separate yarns- to the loop forming mechanism in successive courses. 55 3. In a straight knitting machine, reciprocable yarn-carrier bars, stops for the bars, friction rod means, a friction box, mechanism for selectively , connecting certain carrier bars to the box for movement thereby to lay lengths of separate no yarns to the loop-forming mechanism of the ma chine in recurrent sequence, a second friction box, and means for connecting said separate-yarn car rier bars and other yarn-carrier bars to the second box for positive movement thereby in both direc 65 tions to lay further lengths of said separate and end of their left to right movement in which , said other yarns to the loop-forming mechanism . the carrier bar I‘has been moved by the slide 39 70 of the selector friction box 38, the carrier bars 2 and ‘I have been moved by the left splicing fric tion box L and the carrier bars 3 and Shave been moved by the right splicing friction box R. The connecting arm 46 of the right friction box R is shown as having been disengaged from the in successive courses, a member ‘movably mounted on the second box for, connecting said other yarn carrier bars to, and disconnecting them from,_ the 70 second box, a stationary cam disposed adjacent to the path of travel of the second box, and a lever pivotally mounted on the second box for operation by the cam to connect said certain car- ' 75 5 2,112,610 rier bars to, and disconnect them from, the second box. said cam-controlled means being released from each of said carriers by another carrier. 8. In a machine for knitting a portion of a full > 4. In a straight knitting machine, reciprocable yarn-carrier bars, a friction rod, a friction box, and means providing for simultaneous operation by the box of certain bars positively in each direc fashioned stocking blank, reciprocable yarn-car rier bars, friction rod means, mechanism includ ing a friction box for selectively connecting to the tion and operation of one of said certain bars in box and releasing therefrom three of said bars in recurrent sequence to lay lengths of separate yarns to the loop-forming mechanism of the ma chine, means including a pair of friction boxes having elements for connecting other of said car riers to, and disconnecting them from, the actu ating means to lay lengths of other yarn to the loop-forming mechanism reinforcing areas of said separate yarns for predetermined distances from the selvage edges of the blank, stops cooperating with said elements for determining said distances, dependently of another, including a stationary cam disposed adjacent to the path of travel of 10 the box, and members movably mounted on the unit provided one for connecting each of said certain carriers to, and disconnecting it from, the unit, one of said movably-mounted members be ing in the form of a lever pivoted to the box carry 15 ing a follower for operation by the stationary cam. 5. 'In a knitting machine, yarn carriers, actu ating means, mechanism for selectively connect ' ing certain of the carriers to, and disconnecting them from, the actuating means for laying lengths of separate yarns to the loop-forming mechanism and means including other elements on the fric tion boxes of said pair for connecting the se quential carriers to, and disconnecting them from, 20 of the machine in recurrent sequence, and means the actuating means to lay said separate yarns in for connecting the sequential carriers to, and dis connecting them from, the actuating means to lay other lengths of each of said separate yarns to further lengths additionally reinforcing prede the loop-forming mechanism, said connecting means being controlled by the sequential carriers. 6. In a knitting machine, yarn carriers, actuat ing means, mechanism for selectively connecting certain of the carriers to, and disconnecting them 30' from, the actuating means for laying lengths of separate yarns to the loop-forming mechanism of 25 the machine in recurrent sequence, and means for connecting the sequential carriers to the actuat ing means to lay other lengths of each of said 35 separate yarns to the loop-forming mechanism, said connecting means being released from each of said carriers by another carrier. :1 - '7. In a knitting machine, yarn carriers, actuat ing means, mechanism for selectively connecting 40 certain of the carriers to, and disconnecting them from, the actuating means for laying lengths of separate yarns to the loop-forming mechanism of the machine in recurrent sequence, and means including a stationary cam and means mov 45 able with the actuating means controlled by the cam for connecting the carriers to the actuat ing means to lay other lengths of each of said separate yarns to the loop-forming mechanism, termined portions of said areas. 9. In a full-fashioned stocking knitting ma chine, loop-forming mechanism, reciprocable re inforced selvage yarn carriers, stops for the car- ' riers, friction rod means, a friction box, means for ‘ connecting the carriers to the box, and. means for selectively mounting said connecting means at either of two positions on the box depending upon 30 whether the box is to operate a carrier at a right or left-hand selvage. 10. In a knitting machine, needles, reciprocable yarn carriers, friction rod means, a friction box, selector means on said box to actuate certain of the carriers to lay yarn to the needles in strokes of predetermined sequence, a reinforced selvage friction box, carrier, controlled means on the re inforced selvage box for actuating one of the se quential carriers to lay yarn to the needles dur 40 ing an idle period of said one carrier in the se quence, and means on said reinforced selvage box for selectively receiving an element of said car rier controlled means at either of different posi tions depending upon whether it is to operate in a 45 right or left-hand selvage. ‘ ' HENRY W. SHERMAN.