US2112610A - Knitting machine yarn control - Google Patents

Description

March 29,1938. H.W.YSHERMAN 0 KNlTTING MACHINE YARN 'CONTR OL Filed Nov. 24, 1936 9 Shegts-Sheetl March 29, 1938. H. w. SHERMAN 2,112,610

KNl'TT lNG MACHINE YARN CONTROL Filed Nov. 24, 1936 gsheets-sheet 2 INVENTOR:

L Hear Wfilwrmmu 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 1938; H. w. SHER;MAN 2,112,610 I KNITTING MACHINE kARN CONTROL Filed NOV. 24, 1936 9 SheetS Sheet 4 FlE--5- L //4; l i 4%; O o o o I 5 0'6 L 0 79 w INVENTOR. 1 77107106 lien A TTORN '7).

March 29, 1938.

H. W. SHERMAN KNITTING MACHINE YARN CONTROL Filed NOV. 24, 1936 FlE- E 9 Sheets-Sheet s,

H. w. SHERMAN.,

KNITTING MACHINE YARN CONTROL March 29, 1938. 7

Filed Nov. 24, 1936 9 Sheets-Sheet 6 I BY ATTORNEY.

-March 29, 1938. H. w. SHERMAN 2,112,610

- KNITTING IVIAQH'IIIINE YARN CONTROL FlEmu LfiQ FlE-JEL.

INVENTOR.

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;

H. W. SHERMAN KNITTING MACHINE YARN CONTROL Filed Nov. 24, 1956 9 Sheets-Sheet 9 INVEN TOR.

ATTORNEY.

Patented Mar. 29, 1938 UNITED STATES PATENT OFFICE Y 10 Claims.

My invention relates to novel means for manipulating yarns in knitting machines, and particularly to means for manipulating the yarns of a full-fashioned stocking blank to doubly reinforce an area knitted. by the so-called alternating-carrier 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 five carriers in all, working from the one friction rod in machines as hereinbefore employed. If the body web be produced by three carriers operating in recurrent sequence, under the socalled "ring1ess, principle, there will'then be a total of seven carriers required under former practices 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 is produced by a single main carrieri In either case, under modern high-speed production methods, either the five carriers, in the one instance, or the seven carriers in the other instancecause excessive heating of the. friction rod.

Also, in the feature whereby seven carriers operated by five friction boxes are required to lay the yarns in the upper .heel-in-heel areas, or these carriers are all laying silk yarn, a sufficient number of further carriers is not permitted for other uses, such as laying cotton yarn, placing a colored yarn in the picot edge or laying a heavy yarn in the welt.

An object of the invention'is to avoid the objections to prior devices of the above-indicated character by mechanism that is simple and durable 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 five or seven carriers above mentioned, for use in the upper heel-in-heel areas, 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 number of elements, and to facilitatemanufacture and assembly rendering the device more readily adjustable 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 flexible in the variety of operations it may effect without material change in, or substitution of,.its yarn-manipulating 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'machine, as to ensure against asynchronous operation 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 understanding that the several necessary elements may be varied in size, texture, relation, combination, operation and other features without departing from the spirit and scope of the invention which for purposes of explanation is made the subject of illustration.

In the drawings:

-Figure 1 is a top plan view having distance 1 breaks, of a substantial portion of a full-fashioned knitting machine constructed in accordance with the invention; the view being taken from portions thereof intermediate the ends of the machine to-' ward the left end portions, as viewed 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 difierent'operative 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. 4 showing the parts as positioned at one stage of operation; 7

Fig. 12 is 'aview 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 parts in other positions;

Fig. 14 is a view similar to, Fig. 12 taken substantially along the line I4I4 of Fig. 13, parts being omitted; v v

Fig. 15 is a view similar to Fig; 11, showing the parts in further positions;

Fig. 16 is a view similar to Fig. 14 taken substantially along the line I6I6 of Fig. 15; and

Figs. 1'7 to 22, inclusive, are sequence diagrams stops therefor and elements for controlling or operating the bars, the parts being shown in various positions and relations of operation.

In practicing the invention with a.machine for producing rlngless full-fashioned stocking blanks, a multi-carrier selector, which is not of itself a part of this invention, comprises a friction box including elements for control by a pattern mechanism to connect the box to, and disconnect it from, the separate body-yarn carriers in sequence.

' 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 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 laying a body yarn to the loop-forming mechanism,

to lay the second, or so-called heel-in-heel dogs on these bars, are arranged such that all of the carriers are reciprocated the proper distances, 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 memher 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 withdrawal of the actuator, in which interference with the action of the spring may. occur independently of the action of the actuator.

The drawings illustrate only those parts of a Reading full fashioned stocking knitting machine necessary for an understanding of the invention, Loop-forming mechanism and other parts and the operation thereof are well known. as shown and described in the Reading Full- Fashioned Knitting Machine Catalogue, copyright 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 operating parts are mounted, comprises. end frames 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 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 each end of the machine, cam and lever assem, 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 'carrier bars but in which only the stops I6 and- 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 pattern 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' scribed in detail in copending application, Serial No. 677,443, filed June 24, 1933 by Gustav Gastrich on Yarn feeding mechanism for straight knitting machines, and need" not be further spectively, to connect the latter to, and disconnect the same from, the friction rod 28 whereby corresponding separate yarns may be laid to the loop-forming mechanism of the machine in repeated numerical sequence in accordance with the ringless stocking knitting principle.

Splicing friction boxes L and R, shown .genorally 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 carrier 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 R includes a slide 5I having a lug 52 for-cooperation 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 mounted on a pin 63 journaled in a clamp member 64 associated with the housing 51.

The arm 45 is secured, as by screws 65, to one arm 66 of a lever 61 pivotally mounted on a shaft 68 and having another arm 1I carrying a roller follower 12 for coaction with a stationary cam bar 13. The latter is formed as a clamp member, as shown in Fig. 5, cooperating with a complementary 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 threecarrier dogs LI, L2 and L3, has a free end portion 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

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 inoperative position. The arm 45 operates between side projections 82 which reinforce the 'arm' against side thrust when the box is moving a carrier 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 assembled structure is to be used in the place of the box R or the box L.

Hook-like arms 84 embrace a. back narrowing shaft 85 and are secured, as by screws 86, to members 81 having split-collar clamp portions 88 secured by screws 89 to sleeves 9I integral with the box housing at the ends thereof. This structure acts as a slide guide for the box preventing its turning about the friction rod.

An arm 92 on the lever 61 is connected by a spring 93 to a pin 94 carried by a projection 95 on one .of the members 81 to bias the follower I2 toward the cam I3 and the free end 11 of the arm 45 toward the dogs RI, R2 and R3 on the carrier bars I, 2 and 3, respectively.

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.

-In the inoperative position of the box L, corresponding to a position ofits carriers outside the knitting field, 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 portion 88.

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 longitudinal position of the dog on the bar may be adjustablyfixe'd, after adjustment of a screw I01 in a member l08 fixed to the bar, as by riveting or otherwise.

The dog IL and the dog R6 are provided with adjustable contact screws I I4 for engagement by the slides 48 and respectively.

Referring to Fig. 8, a full fashioned stocking leg blank a portion of which the above-described machine is capable of knitting, comprises a welt 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 first course of the welt W, to an instep course indicated by a dot-and-da'sh line J, after which the machine is stopped and adjusted,either by usual and well-known means or other means not constituting part of this invention to finish the blank.

As indicated diagrammatically in Figs. 9 and 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 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 between the triple spaced full courses thereof in a series of short courses a: occupying the heel-in heel areas K to the start of the heel tab areas.

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 to be 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 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 action is clearly exemplified 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 occupied at the end of a stroke of the bar 3.

From the time the parts are positioned as in Figslll and 12 until the dog LI on the bar I of Fig. 12 hits the arm 45, the latter serves as a rebound stop for the carrier bar 3, after which the dog LI engages, and exerts a camming action slot in the dog L3. to the end of a stroke, as indicated in Figs. 15

v and 16, determined by the engagement of the carrier bar I with its corresponding stop S.

In producing a portion of the blank with which this invention is concerned, the yarn-manipulating elements are actuated in sequence, as indicated in Figs. 17 to 22, inclusive.

As seen in Fig. 1'7, the carrier bars have reached the ends of a movement from right to left in 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 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 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 with the carrier bar I. The movable connecting arm 45 of the left friction box L is shown as having been disengaged from the carrier bar 2 and.

moved beyond the dogs L2 and L3 on the carrier bars 2 and 3, respectively. 4

the usual course laying movements thereof, the

dogs R6, 6R, LI and IL on the splicing carrier bars being so positioned as to provide lost motion between the friction boxes R and L and the carrier. bars. The arms 45 and 46 for connecting the alternating carrier bars I, 2 or -3 for laying the heel-in-heel reinforcements K, above the 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 corresponding 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 positions 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, respectively, to complete a portion of their yarn laying 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 reinforcing the left selvage edge.

As .seen in Fig. 18; all the carrier bars have reached the ends of their movement from left to right in which the carrier bar 2 has been moved by the slide 39, the carrier bars 3 and 1 have been moved by the left hand splicing friction box L and carrier bars I and 6 have been 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 dogs on the carrier bars I and'2 so that in the next right to left movement of the carrier bars, the carrier bar, engaged by the selector mechanism U, will be moved through a portion of its yarnlaying stroke before the right hand friction 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 heelin-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 the end of their right to left movement in which the carrier bar I has been moved by the slide 39, the carrier bars 3 and I have been moved by the left hand splicing friction box L, against their end stops and the carrier bars 2 and 6 have been moved by the right hand splicing friction box R,

the bars 2 and 6 coming ,to a stop when the dog 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 and 3, respectively.

In Fig. 20, the carrier bars have reached the end oftheir left to right movement in which the car ier bar 3 has been moved by the slide 39, the carfi ier bars I and I have been moved by the 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. against their right end stops, the connecting arm 46 of the right friction box R being shown disengaged from the carrier bar 2 and moved beyond 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 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' end of their left to right movement in which the carrier bar Ihas been moved by the slide 39 of the selector friction box 38, the carrier bars 2 and I have been moved by the left splicing friction 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 carrier bar 3 and moved beyond the dogs RI and scribed by which the above-mentioned results are obtained, may be modified without departing from the invention as set forth in the specification and claims.

I claim:

1. In a straight knitting machine, reciprocable yarn-carrier bars, stops for the bars, friction rod means, mechanism including a first 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 disposed adjacent to the path of travel of the second box, and means including a lever pivotally mounted on the second box for operation by the cam to disconnect the separate yarn-carrier bars from, and to connect the same to, the second box for positive movementthereby in both directions to lay further lengths of said separate yarns to the loop-forming mechanism in successive courses.

2. In ,a full-fashioned stocking knitting machine, reciprocable yarn-carrier bars, stops for the bars, friction rod means, mechanism including a first friction box for connecting to the box and releasing therefrom three ofsaid bars in recurrent sequence to lay lengths of separate yarns to the loop-forming mechanism of the machine, and means including a second friction box, a stationary 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 first box and to connect the three bars to the second box in the sequence in which they are disconnected from the first box for'positive movement by the second box in both directions to lay further lengths of said separate yarnsto the loopforming mechanism in successive courses.

3. In a straight knitting machine, reciprocable yarn-carrier bars, stops for the bars, friction rod means, a friction box, mechanism for selectively said other yarns to the loop-forming mechanism in successive courses, a member movably mounted on the second box for connecting said other yarncarrier bars to, and disconnecting them from, the 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 carrier bars to, and disconnect them from, the second box.

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 direction and operation of one of said certain bars independently of another, including a stationary cam disposed adjacent to the path of travel of 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 being in the form of a lever pivoted to the box carrying a follower for operation by the stationary cam.

5. 'In a knitting machine, yarn carriers, actuating means, mechanism for selectively connecting 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 for connecting the sequential carriers to, and disconnecting them from, the actuating means to lay other lengths of each of said separate yarns to the loop-forming mechanism, said connecting means being controlled by the sequential carriers.

6. In a knitting machine, yarn carriers, actuating means, mechanism for selectively connecting 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 for connecting the sequential carriers to the actuating means to lay other lengths of each of said separate yarns to the loop-forming mechanism, said connecting means being released from each of said carriers by another carrier.

'7. In a knitting machine, yarn carriers, actuating means, mechanism for selectively connecting 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 movable with the actuating means controlled by the cam for connecting the carriers to the actuating means to lay other lengths of each of said separate yarns to the loop-forming mechanism,

said cam-controlled means being released from each of said carriers by another carrier.

8. In a machine for knitting a portion of a fullfashioned stocking blank, reciprocable yarn-carrier bars, friction rod means, mechanism including a friction box for selectively connecting to the box and releasing therefrom three of said bars in recurrent sequence to lay lengths of separate yarns to the loop-forming mechanism of the machine, means including a pair of friction boxes having elements for connecting other of said carriers to, and disconnecting them from, the actuating 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, and means including other elements on the friction boxes of said pair for connecting the sequential carriers to, and disconnecting them from, the actuating means to lay said separate yarns in further lengths additionally reinforcing predetermined portions of said areas.

9. In a full-fashioned stocking knitting machine, loop-forming mechanism, reciprocable reinforced selvage yarn carriers, stops for the carriers, 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 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 reinforced selvage box for actuating one of the sequential carriers to lay yarn to the needles during an idle period of said one carrier in the sequence, and means on said reinforced selvage box for selectively receiving an element of said carrier controlled means at either of different positions depending upon whether it is to operate in a right or left-hand selvage.

HENRY W. SHERMAN.

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