US2241779A - Plating attachment for full-fashioned knitting machines - Google Patents

Description

May 13, 1941. w.- HARTMANN PLATING ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES Filed Nov. 7, 1959 3 Sheets-Sheet 1 May 13, 1941.

W., HARTMANN PLATING ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES 60 74 g'; as 5 104 Filed Nov. 7, 1939 T 5 sheets-sheet 2 iii Walter ffa'iytmajzn,

9? www May 13, 1941. w. HARTMANN 2,241,779

PLATING ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES Filed NOV. 7, 1939 5 Sheets-Sheet 5 Inventor Walter lfariizarzib,

Patented May 13, 1941 PLATING ATTACHMENT FOR FULL-FASH- IONED KNITTING MACHINES Walter Hartmann, Paterson, N. J., assignor to Alfred Hofmann, Inc., West New York, N. J.

Application November 7, 1939, Serial No. 303,195

Claims. (Cl. 66-129) The present invention relates to the art of plating full-fashioned knitted stockings and primarily aims to provide an attachment which may 'be readily associated with an ordinary fullfashioned knitting machine to control the plating frictions for locking and unlocking the same and thus functioning in an automatic manner to apply the necessary pressure to the plating frictions during the plating operation, and to release the tension or drag on said frictions when not needed.

The art of plating full-fashioned knitted stockings is known as the process of lining the stocking, or. certain parts thereof, by feeding a thread of a characteristic different from the body yarn so that said thread becomes placed under the body yarn and appears on one side of the fabric only. Plating under the present-day practice is limited chiefly to the reinforcement of the high heel sections, heel tabs, sole, and toe of the stocking, and the most frequent and important application of the principle is to use silk on the outside and reinforce it with a cheap material, such as cotton, on the inside.

In order to obtain good plating, it is necessary that the inner cotton thread be laid over the outer slik thread because otherwise the fabric becomes misplated and appears speckled when dyed due to the difference in the dye-absorbing properties of the two threads or yarns. The plating or cotton thread must be laid over the slik body yarn because, during the process of knitting, the right side of the fabric is underneath It has been found that in order to assure the proper relationship of the twothreads or yarns when laying the same, the plating carrier must always follow the main carrier.

The greatest difliculty in maintaining the main and plating carriers in their proper relationship is encountered during the plating of the high heel sections, because at least three carriers must then be used, one carrier'threaded with the body yarn being intended to reciprocate over the entire width of the fabric, and two plating carriers, each threaded with a plating yarn, being intended to reciprocate respectively over the left and right high heel sections at the side portions of the fabric.

As is well known in the art, reciprocating motion is imparted to the plating carriers as well as to the main carrier by means of friction boxes, all mounted on a single friction rod. This friction rod has a constant uniform stroke of approximately 18", whereas the friction boxes controlling the plating carriers are limited in their stroke,

the distance travelled by said friction boxes generally varying from to 3". 7 Accordingly, there must be considerable slippage between the friction rod and plating friction boxes, which creates a drag, tending to displace the carriers and consequently increasing the possibilities of misplating and imperfect fabric.

The detrimental effects of this drag have multiplied with the increased length of present-day machines due to the increase in the length of the carrier rods and the increase in the number of carriers, with the result that the inertia of these parts has become so great that extremely tight friction is needed in order to assure the correct relationship of the carriers during the plating operation.

As a consequence of the tightened friction, the drag increases, and considerable heat is generated which expands the friction rod, entails undue wear and tear, and causes variations in the friction tension, necessitating slowing down of the machine, which unavoidably brings about a loss of production and a rise in cost.

It is, therefore, the primary object of the invention to provide a plating attachment capable of eliminating most of the drag normally imposed upon the plating friction boxes after they are no longer needed to moVe the carrier rod.

Another object of the invention resides in the provision of a plating attachment operating to prevent a loss of power in the machine at a point where the drag occurs, thereby obviating the necessity of slowing down the mechanism and, accordingly, eliminating resulting loss in production.

It is also an object of the invention to provide a plating attachment constructed to prevent wear on the friction rod, friction boxes, and associated parts, resulting in a saving in maintenance cost.

Other important objects and advantages of the invention will be in part obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by those skilled in the art, I have, in the accompanying drawings and in the detailed description based thereupon, set out a possible embodiment of the invention.

In these drawings:

Figure 1 is a diagrammatic plan of the several cooperating elements constituting the invention as applied to a flat or full-fashioned knitting machine; the elements being shown in their relative positions at the extreme left stroke of the Coulier motion.

Figure 2 is a view similar to Figure 1, but showing the elements in their relative positions at the extreme right end stroke of the Coulier motion.

Figure 3 is a sectional elevation through a portion of the knitting machine showing the slur bar, friction rod, and carrier bars, and having certain elements of the invention illustrated in conjunction therewith.

Figure 4 is a plan view of one of the improved friction boxes,

Figure 5 is a front elevation of the same.

Figure 6 is a longitudinal section taken on line 6-6 of Figure 5.

Figure '7 is a vertical section taken on line 'l----'! of Figure 5.

Figures 8, 9, 10, 11, 12, and 13 are diagrammatic illustrations of the various successive relative movements of the carrier bars and their carriers, the friction rod. and the plating frictions.

Referring more particularly to the drawings, wherein like characters of reference will designate corresponding parts throughout the several views, it is to be understood that I have shown only those parts of a full-fashioned hosiery knitting machine which are essential to a clear comprehension of the invention, the knitting machine itself being of the usual standard construction and operating in the manner well known in the art.

In Figures 1 and 2 of the drawings are shown, more or less diagrammatically, the related parts of the machine adapted to co-function during the process of plating. In these figures, the main carrier, which is threaded with the body yarn, is designated at the left hand plating carrier, which is threaded with a plating yarn, is designated at 22; and the right hand plating carrier, which is also threaded with a plating yarn, is designated at 24. Of course, it will be understood that, whereas only the minimum number of carriers for one knitting section has been shown for illustration purposes, an equal number of carriers is supplied for each knitting section throughout the entire length of the machine.

The carriers 22, 22, and 24 of all the knitting sections are individually supported on separate reciprocable carrier bars, that is, a main carrier bar, indicated at 25, and two plating carrier bars, indicated at 28 and 30 respectively. The

main carrier bar 26, supporting the main carcarrier 22, and the plating carrier bar 30, supporting the right hand plating carrier 24-, are respectively associated with plating friction devices 36 and 38 which are also associated with the friction rod 34 and which will be described in detail hereinafter.

From the foregoing description, it will be appreciated that the reciprocation of the friction rod 34 is transmitted to the main carrier bar 53 and its carrier 20 by means of the main friction box and to the plating carrier bars 28 and and their carriers 22 and 24 by of the plating friction devices 36 and 38. reciprocating movements of the carrier bars 25, 28, and 30 are variably limited in relation. to the reciprocating movement of the friction rod 35. as is usually done in this type of machine. For

that purpose, the machine is provided with the However, the

ordinary well known narrowing and pointex mechanisms, the narrowing mechanism including the left hand carrier narrowing nut 40 and the right hand carrier narrowing nut 42, and the pointex mechanism including the left hand pointex rack 44 and the right hand pointex rack 46.

As clearly represented in Figures 1 and 2, the main carrier bar 26 is provided with spaced stops 48 and 59 respectively disposed so that the stop 48 will engage the carrier nut 42, thus arresting said carrier bar 26 in the course of its movement to the left, that is, in the direction of arrow A, and the stop 50 will engage the carrier nut 49, thus arresting the carrier bar 26 in the course of its movement to the right, that is, in the direction of arrow B.

The plating carrier bar 28 is also provided with spaced stops 52 and 54 respectively disposed so that the stop 52 will contact the carrier nut 42 thus arresting said carrier bar 28 in the course of its movement to the left, that is, in the direction of arrow A, and the stop 54 will contact the left hand pointex rack 44, thus arresting said carrier bar 28 in the course of its movement to the right, that is, in the direction of arrow B.

Likewise, the plating carrier bar 30 is provided with spaced stops 56, 58 respectively disposed so that the stop 56 will contact the right hand pointex rack 46 thus arresting said carrier bar 33 in the course of its movement to the left, that is, in the direction of arrow A, and the stop 58 will contact the narrowing nut 40, thus arresting said carrier bar 30 in the course of its movement to the right, that is, in the direction of arrow B.

The carrier narrowing nuts 40 and 42 and the pointex racks 44 and 46 are in engagement with the usual reversely threaded spindles 6'0 and GI operated by the well known narrowing and pointex motion mechanisms commonly provided on the knitting machine, but not shown herein, so that said nuts and racks may be moved towards and away from each other for the purpose of fashioning the stocking blank fabric F and shaping the high heel sections HI and H2 thereof.

In accordance with the present invention, and as shown in the drawings, the plating friction devices 36 and 38 respectively, intended for the operation of the plating carrier bars 28 and 30, preferably comprise carrier bar engaging fingers 62 and B3 securedly fixed to suitably shaped brackets 64 and 65 freely received on a supporting shaft 66 (Figure 3), said brackets being provided with friction box engaging portions 68 and 69. Disposed for frictional engagement with the friction bar 34 and arranged thereon on the opposite sides of the bracket portions 68 and 69 are pairs of complementary friction boxes, as indicated at 1500-101), and 12a'!2b.

As illustrated in Figures 4 to 7 inclusive, each of the friction boxes Tim-10b and T2a-12b comprises a frame casting I4 of substantially rectangular configuration, constructed to encircle the friction bar 34 and slide longitudinally with respect thereto, said casting consisting of side portions 16 and 18 and end portions and 82, the end portions being slotted, as shown at 84, for the passage of the friction bar 34 therethrough, as will more clearly appear from Figure 6.

Positioned within the frame casting 14 to contact the opposite faces of the friction bar 34 are friction elements preferably consisting of sections of leather over which are placed seating plates 88. Arranged over the plates 88 are depressable leaf springs 98 adapted, when depressed, to exert pressure upon said plates 88 and thus urge the friction elements 86 into positive frictional engagement with the friction bar 34.

In order to depress the leaf springs 98, there are preferably provided rigid U-shaped straps 92 fitted within the side portions 16 and I8 of the frame casting 74 to contact the leaf springs 98 on one side of the friction bar 34, the end portions 94 of said straps projecting outwardly of said casting on the other side of the friction bar to extend for a distance beyond the springs 98 on said other side of the friction bar.

Mounted on the projecting end portions 84 of the U-shaped straps 92, and disposed to extend transversely thereof, are pins 96 serving as pivots for swingable members 98, each having a pair of diametrically opposed fingers I88 and I82. As will clearly appear from Figures 5 and 6, the members 98 are so arranged that the fingers I88 thereof project over the leaf springs 98 on the corresponding side of the friction bar 34, said fingers I88 having adjustable elements I84 disposed for bearing contact with said springs, and the fingers I82 project in paralleling relationship thereby in unison with the friction rod 34 and slur bar Ill and, for that purpose, the brackets I I6, as shown in Figure 3, may be secured onto a connecting link II 8 attached to said slur bar and conveniently formed with a yoke I I8 adapted for engagement with a guiding shaft I28 extending longitudinally of the machine.

over and in contact with a rockable multi-sided operating shaft I86 supported intermediately of said members 98 by means of suitable bearings I88 on the side portions I6 and T8 of the frame casting I4.

It will be noted that the angularly disposed sides of the operating shaft I86 extend to different levels with respect to its axis so that, upon rocking said shaft from one position to another, the fingers I82 will be raised or lowered, causing the members 88 to move for tightening or loosening the straps 92, thus depressing or relieving the springs 98 in contact therewith and, at the same time, causing the fingers I88 to move for depressing or relieving the springs 98 associated therewith, accordingly frictionally looking or releasing the friction box with or from the friction rod 34.

In accordance with the invention, the rocking of the shaft I86 of each friction box to lock or unlock the same is to be accomplished automatically during the operation of the knitting machine. For that purpose, one end of the shaft I85 is extended beyond its bearing I88 and has rigidly fixed thereto a dog II8, preferably having a general V-shaped formation. The adjacent portions of the bearing I88 and of. the dog II8 are preferably formed with step sections, as shown at III, said step sections co-functioning to act as a stop for the dog I I8 when in idle position. The dogs I I8 of the friction boxes I8a-'I8b and ma-l2?) are positioned to lay in the path of movement of separate tripping roller carrying arms lI2aII2b and 3&1 and H31), the arms I IZa-IIZb being supported in spaced relationship on a relatively short shaft II4 so that the arm IIZa cooperates with the dog of the friction box 18a, while the arm IIZb cooperates with the dog of the friction box 1817, and the arms II3a and IISb being supported in spaced relationship on another relatively short shaft II5 so that the arm I !3a cooperates with the friction box 12a while the arm I'I3b cooperates with the dog of the friction box 121).

The shafts I I4 and I I5 are connected by means of brackets II6 to the usual slur motion mechanism of the knitting machine to be reciprocated Attention is called to the fact that, whereas the special friction boxes 'I8a'|8b and 'I2a'l2b are identical in construction, the operating shafts I86 and the dogs II8 of boxes 18a and 12a and of boxes Nb and 1212 are relatively arranged in different positions. For instance, in the position shown in Figure l, which position is taken at the extreme left end stroke of the Coulier motion, while the dogs I I8 are all tripped in the same direction, boxes I8a and 12a are locked to frictionally engage the friction rod 34, and boxes 18b and 121) are unlocked to frictionally disengage said friction rod. Conversely, it will be understood that when the dogs II8 are tripped to the position opposite to that shown in Figure 1, that is, to the position illustrated in Figure 2 which position is taken at the extreme right end stroke of the Coulier motion, the boxes 18a and 12a become unlocked, and the boxes 18b and 12b become locked.

The tripping of the dogs I I8 is obtained through the relative movement of the tripping roller carrying arms II2a-II2b and II3a,-II3b with respect to the boxes 'I8al8b and I2a-I2b, the movement of said arms in either direction being in excess to that of said boxes. The friction boxes 180-181) and Ha-12b may be timed by providing each box with an adjustable stop, as indicated at I22a-I22b I24a,-I24b, said stops being disposed to come in contact with suitable fixed parts of the machine frame, such as represented at I26 I28, and I38, to arrest the movement of the boxes map-12a when moving to the left, that is, in the general direction of arrow A, and of boxes 18b12b when moving to the right, that is, in the general direction of arrow B, while in each instance the tripping roller carrying arms I I.2a H22) and I I3aI I3b continue in their movement with the Coulier motion. It is this movement of the tripping roller carrying arms in excess to the movement of the friction boxes in either direction which is utilized to trip the dogs for locking the respective friction boxes to time the same for operating at the beginning of each plating course and for unlocking the respective friction boxes to release the same from the friction rod at the completion of each plated course.

With the foregoing description in mind, and with particular reference to Figures 8 to 13 inclusive, the operation of the improved plating attachment when in use may be summarized as follows:

In Figure 8, the respective parts illustrated are shown in the same relative position as in Figure 1, that is, the position is taken at the extreme left end stroke of the Coulier motion just at the point when a stroke to the right, that is, in the general direction of arrow B, is to begin, it being assumed that the knitting of the stocking blank fabric F has progressed to, and started, the plated high heel sections HI and H2. In this position, the friction bar 34 has reached the end of its movement to the left; the main carrier 28 and the left plating carrier 22 are located at their extreme left position, that is, in overlapping relation at the outer left selvedge SI 'of the fabric, since the main carrier bar 26 and the plating carrier bar 28 are held in their extreme left position, the respective stops 48 and 52 (Figure 1) being in contact with the right hand narrowing nut 42; the plating carrier 24 is located at its extreme left position, that is, at the inner selvedge Si of the right high heel section H2, since the plating carrier bar 3% is held in its extreme left position, the stop 55 (Figure 1) being in contact with the right hand pointex rack 46; the friction boxes 1% and 12b are unlocked since the tripping roller carrying arms H22) and I I317 have passed beyond and tripped the dogs IIG of said boxes bib and 12b; and, the friction boxes Ilia and 12a are locked, since the tripping roller carrying arms I I2a and I 13a have passed beyond and tripped the dogs III) of said boxes 16a and 720;, the stops I22a and E244: being in contact with the fixed machine parts I26 and I28.

It is to be noted that the position of the friction boxes 10a and 72a in relation to the position of the bracket portions 53 and B53 is such that a certain amount of space X and XI respectively exists therebetween. These spaces X and XI represent the distance that the plating friction boxes travel before the plating carriers 22 and 24 start to move, thus permitting the main carrier 23 to acquire a suflicient lead over said plating carriers. It is also to be noted that a certain amount of space Y (Figure 1) exists between the stop fiii of the main carrier bar 26 and the left hand carrier nut 40, this space Y representing the distance travelled by the main carrier 2Q across the fabric when laying a full course; and that a certain amount of space Z (Figure 1) exists between the stop 54 of the plating carrier bar 23 and the left hand pointex rack 44 and between the stop 58 of the plating carrier 3i! and the left hand carrier narrowing nut 40, these spaces Z representing the distances travelled by the plating carriers 22 and 24 across the high heel sections HI and H2 in laying a plating course.

With the parts in the relative position above described, the Coulier motion starts its movement to the right, that is, in the general direction of arrow 13. Of course, it will be understood that at that moment the slur bar Ill and the friction rod 34 follow the movement of the Coulier motion. The main friction box 32, being operatively connected to the friction bar, moves therewith, accordingly sliding the main carrier bar 26 and the main carrier 2%, which starts the laying of the body yarn. At that same moment, the friction boxes 19a, and 1211 being locked into frictional engagement with the friction bar 31, move therewith. The friction boxes 18b and 12?), although unlocked, will however travel with the friction rod since they are supported thereby and since there is no obstruction in their path of movement to prevent them from being carried along. The tripping roller carrying arms IIZa-HZb and li3aH.-3b being connected to the slur bar Iil also move in unison with their respective friction boxes lfiali3b and I2a'i2b. As the movement to the right continues, the locked friction box 161a comes in contact with the bracket portion 68, as represented in Figure 9, whereupon the bracket 64 and its finger 62 join in the movement of the Coulier motion and thus move the plating carrier bar 28 with its carrier 22, which then lays its plating yarn over the left high heel section HI.

When the carrier 22 reaches the position shown in Figure 10, that is, the inner selvedge S3 of the high heel section HI, 'the carrier is stopped because, by that time, the stop M (Figure 2) has reached the left hand pointex rack 44, which prevents further movement of the carrier bar 28, accordingly arresting the finger 62, bracket 6 and friction box 13a. Thereupon, the dog I IE! is tripped by the tripping roller carrying arm I I 2a which continues to move relative to the friction box 10a, thus unlocking said friction box. In this manner, the friction bar 34 may proceed without drag to move the main carrier 26 in the continued laying of the body yarn, as illustrated in Figure 11.

When the position illustrated in Figure 11 is reached, that is, when the main carrier 26 has passed beyond the right plating carrier 39, the friction box 12a contacts the bracket portion 69, whereupon the bracket and its finger 63 are carried along with said friction box 12a, thus imparting movement to the plating carrier bar 30 so that the plating carrier 24 may lay its yarn over the right high heel section H2, as shown in Figure 12.

Upon reaching the position shown in Figure 12, that is, when the plating carrier 72?) reaches the outer selvedge S2 of the high heel section H2, said carrier 1% is stopped by reason of the stop 58 (Figure 2) coming in contact with the left hand carrier narrowing nut 40. Therefore, further movement of the carrier rod 3Q, finger 53, bracket t5, and friction box 12a is prevented. However, the Coulier motion in its continuing movement to the right, causes the tripping roller carrying arm I I3a to trip the dog 5 i8 of the friction box 72a, consequently unlocking the friction box 12a. In reaching the end of the stroke to the right, represented in Figure 13, wherein the respective parts are shown in the same relative position as in Figure 2, the tripping roller carrying arms H22) and H31) trip the dogs III! of the friction boxes 10b and 121) which have been arrested due to the stops I221) and 52% coming into abutting engagement with the fixed parts I 28 and I3!) respectively.

As will clearly appear from Figure 2, the position of the parts at the extreme right end stroke of the Coulier motion is reversed to that shown in Figure 1. Therefore, the friction bar 34 has reached the end of its movement to the right; the main carrier 2!! and left plating carrier 24 are located at their extreme right position, that is, in overlapping relation at the outer right selvedge S2 of the fabric, since the main carrier bar 26 and plating carrier bar 33 are held in their extreme right position, the stops 5!] and 58 being in contact with the left end narrowing nut 49; the left plating carrier 22 is located at the extreme right position, that is, at the inner selvedge S3 of the left high heel section Hi since the plating carrier bar 28 is held in its extreme right position, the stop 54 being in contact with the left hand pointex rack 44; the friction boxes Hib and 12b are locked, since the tripping roller carrying arms H22) and II3b have passed beyond and tripped the dogs I I 0 of said boxes; and, the friction boxes Illa and 12a are unlocked since the tripping roller carrying arms H211 and 3a have passed beyond and tripped the dogs H9 of said boxes Illa and 1211.

Accordingly, when the Coulier motion moves to the left to lay the succeeding course, the plating attachment will operate in the same manner as, but in the reversed order, hereinbefore described.

From the foregoing description of the improved plating attachment and its operation, it will be appreciated that the plating boxes operable to drive the plating carriers are always unlocked when their movement with the friction bar is prevented so that there cannot be any detrimental drag between said plating carrier boxes and the friction bar. Because of this feature, the knitting machine may be operated at a relatively high rate of speed during the plating operation, since the danger of overheating of parts, the possibilities of carrier misplacements, and the likelihood of mistiming are obviated.

In concluding, it is pointed out that the particular construction of the embodiment herein shown and described is capable of certain modifications without departing from the gist of the invention. Therefore, any modification coming within the scope of the sub-joined claims is to be considered within the spirit of the invention.

What I claim is:

1. In combination with the reciprocating friction bar and reciprocable carrier bars of a fullfashioned knitting machine, a plating attachment comprising carrier bar engaging means, a pair of complementary friction boxes each disposed for frictional engagement with the friction bar and arranged to engage said carrier bar engaging means, and means operable for locking and unlocking said friction boxes relatively to each other whereby said carrier bar engaging means and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said friction boxes.

2. In combination with the reciprocating friction bar and reciprocable carrier bars of a full-fashioned knitting machine, a plating attachment comprising a carrier bar engaging finger, a bracket carrying said finger and mounted for slidable movements, a pair of complementary friction boxes each disposed for frictional engagement with the friction bar and arranged to engage said bracket to slide the same, and means operable for locking and unlocking said friction boxes relatively to each other whereby said finger and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said friction boxes.

3. In combination with the reciprocating friction bar and reciprocable carrier bars of a fullfashioned knitting machine, a plating attachment comprising a pair of friction devices each including a carrier bar engaging finger, a bracket carrying said finger and mounted for slidable movements, a pair of complementary friction boxes each disposed in frictional engagement with the friction bar and arranged to engage said bracket to slide the same, and means operable for locking and unlocking said friction boxes relatively to each other whereby said finger and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said friction boxes.

4. In combination with the reciprocating friction bar, reciprocating slur bar, and reciprocable carrier bars of a full-fashioned knitting machine, a plating attachment comprising carrier bar engaging means, a pair of complementary friction boxes, each disposed for frictional engagement with the friction bar and arranged to engage said carrier bar engaging means, and means carried by and. movable with the slur bar for locking and unlocking said friction boxes relatively to each other whereby said carrier bar engaging means and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said friction boxes.

5. In combination with the reciprocating friction bar, reciprocating slur bar, and reciprocable carrier bars of a full-fashioned knitting machine, a plating attachment comprising a carrier bar engaging finger, a bracket carrying said finger and mounted for slidable movements, a pair of complementary friction boxes, each disposed for frictional engagement with the friction bar and arranged to engage said bracket to slide the same, and means carried by and movable with the slur bar for locking and unlocking said friction boxes relatively to each other whereby said finger and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said friction boxes.

6. In combination with the reciprocating friction bar, reciprocating slur bar, and reciprocable carrier bars of a full-fashioned knitting machine, a plating attachment comprising a pair of friction devices each including a carrier bar engaging finger, a bracket carrying said finger and mounted for slidable movements, a pair of complementary friction boxes each disposed for frictional engagement with the friction bar and arranged to engage said bracket to slide the same, and means carried by and movable with theslur bar for locking and unlocking said friction boxes relatively to each other whereby said finger and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes and in the other direction by the other of said friction boxes.

7. In combination with the reciprocating friction bar and reciprocating carrier bars of a fullfashioned knitting machine, carrier bar engaging means, a pair of complementary friction boxes, each disposed for frictional engagement with the friction bar and arranged to engage said carrier bar engaging means, and means operable for locking and unlocking said friction boxes relatively to each other whereby said carrier bar engaging means and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said friction boxes.

8. In combination with the reciprocating friction bar, reciprocating slur bar, and reciprocable carrier bars of a full-fashioned knitting machine,

' carrier bar engaging means, a pair of complementary friction boxes, each disposed for frictional engagement with the friction bar and arranged to engage said carrier bar engaging means, and means carried by and movable with the slur bar for locking and unlocking said friction boxes relatively to each other whereby said carrier bar engaging means and the carrier bar in engagement therewith may be moved with the friction bar in one direction by one of said friction boxes, and in the other direction by the other of said frictionboxes.

9. In a knitting machine of the character described, a reciprocating slur bar; a reciprocating friction bar; a reciprocable carrier bar; a friction box connectable on the friction bar and engageable with the carrier bar for driving the same in one direction of its reciprocable movement; a friction box connectable on the friction bar and engagement with the carrier bar for driving the same in the other direction of its reciprocable movement; and means carried by the slur bar and operable to connect said friction box to the friction bar for the driving of the carrier bar in said directions, and to disconnect said friction box from the friction bar at the end of their driving of the carrier bar in said directions.

10. In a knitting machine of the character described, a reciprocating slur bar; a reciprocating friction bar; a reciprocable carrier bar; friction means on the friction bar acting on said carrier bar to drive the same in unison with the friction bar during a portion of its reciprocation in one direction of its reciprocable movement; means carried by the slur bar and enga eable with said friction means to release the same and interrupt its driving action on said carrier bar during another portion of the friction bar reciprocation in said one direction; other friction means on the friction bar acting on said carrier bar to drive the same in unison with the friction bar during a portion of its reciprocation in the other direction of its reciprocable movement; and means carried by the slur bar and engageable with said other friction means to release the same and interrupt its driving action on said carrier bar during another portion of the friction rod reciprocation in said other direction.

WALTER HAR'IMANN.

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