US2164118A - Knitting machine - Google Patents

Description

June 27, 1939. H MCADAMS 2,164,118

KNITTING MACHINE Filed Dec. 21, 1933 14 Sheets-Sheet 4 INVENTOR.

H arr- M Adam 5 4 Z ZM ATTORNEYS.

H. M ADAMS June 27; 1 939.

KNITTING MACHINE Filed Dec. 21 1935 14 Sheets-Sheet 5 M M w w J 4. W lu u l INVENTOR. Harr- M Acl ams ATTORNEYS.

June 27, 1939, MUADAMS 2,164,118

KNITTING MACHINE Filed Dec. 21, 1933 14 Sheets- Sheet 8 ,1 INVENTOR.

HETI'H M Adams 1 ATTORNEYS H. M ADAMS June 27, 1939.

KNITTING MACHINE l4 SheetsSheet 10 Filed Dec. 21, 1933 I I ll Ih lVENTOR. HarrH M Adam-l5 BY I June 27, 1939. c A s KNITTING MACHINE Filed Dec. 21, 1955 14 Sheets-Sheet 11 Hat-P M KE??? gaff M ATTORNEYS.

June 27, 1939. H. MC 2,164,118

KNITTING MACHINE Filed Dec. 21, 1933 14 Sheets-Sheet 12 Harr M Adams ATTORNEYS.

June 27, 1939. HA MGADAMS 2,164,118

KNITTING MACHINE Filed Dec. 21, 1955 14 Sheets-Sheet 14 \o-smm- CLOCK 40 46 muazmaoasaa #6359 32313029119 zzzlznela lSlSlaua Z llOBg 054.321

III R786 INVENTOR.

Hal-P M Ad ame- BY Q M 2 ATTORNEYS.

Patented June 27, 1939 UNITED STATES KNITTING MACHINE,

Harry McAdams, Reading, Pa., assignor to Nolde and Horst Company, Reading, Pa., a corporation Application December 21, 1933,Serial No. 703,483

14 Claims.

This invention relates to improvements in knitting machines and knitted fabrics produced thereon.

The primary object of the invention is the provision of an improved knitting machine whereon seamless stockings or other tubular fabric may be knitted with incorporated patterned areas knitted therein of the nature set forth in my co-pending application, Serial No. 662,354, filed March 23, 1933, but whereon may be knitted a wider selection of patterns which are more complicated. v

A further object of this invention is the provision of an improved knitting machine capable of producing fabric having extremely wide irregularly formed reverse plated patterned areas incorporatedtherein. Furthermore the invention includes means to associate with the plated patterned areas horizontal striping yarn changes and selective wrap patterned effects.

A further object of this invention is the provision of improved patterning means for selecting desired needles, the improved patterning means being compactly arranged to enable the selection of widely different series of needles for taking patterning yarns. A further object of this invention is the provision of improved pattern control mechanism for varied needle selection upon a knitting machine, capable of incorporating in seamless knitted fabric a wrap yarn patterned effect embodying the color within color principle.

Other objects and advantages of the invention will be apparent during the course of the following detailed description.

In the accompanying drawings, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout the several views,

Figure 1 is a front elevation of the improved knitting machine with the upper and lower parts thereof removed, and more particularly showing the cooperative means for the purpose of varied needle selection, in order to take selected needle 45 wrapping yarns, etc.

1 Figure 2 is a fragmentary side elevation of the improved knitting machine.

Figure 3 is an opposite fragmentary side elevation of the improved knitting machine. Figure 4 is a fragmentary rear elevation of the improved knitting machine.

Figure 5 is a fragmentary side elevation of the knitting machine, showing the same side as illus trated in Figure 2, but with the needle selecting patterningmeans and reverse plating attachments removed and parts of the frame of the machine broken away to disclose means for controlling certain yarn feeds and gearing within the frame.

Figure 6 is a vertical cross sectional view taken 5 through the cylinder of the knitting machine, showing the association therewith of needles and their cooperating jack arrangement and a series of selectively operated jack actuating cams, the means for operating the same, and the associa- 10 tion of wrap feed fingers with respect to the needles.

Figure 7 is a fragmentary plan view of the knitting machine, with the needle cylinder in cross section, and showing more particularly the i5 association therewith of the needle selecting pattern mechanism, its actuating mechanism, and the means for actuating the pattern drum of the reverse plating attachment.

Figure 8 is a fragmentary plan view of certain 20 portions of the needle selecting pattern mechanism, more particularly illustrating the means for step by step advancement of the pattern drums thereof.

Figure 9 is a vertical cross sectional view taken 25 through the wrapping yarn feed mechanism which is suspended above the cylinder, and showing a cam means for operating the fingers thereof.

Figure 10 is a fragmentary perspective view 0 of a pawl mechanism for advancing the pattern drums of the needle selecting pattern mechanism.

Figure 11 is a side elevation of a piece of tubular fabric knitted upon the machine, showing the full width of the tubular fabric and having incorporated therewith reverse plated pattern areas of diamond-shape formation extending the full width of one' side of the fabric and the cooperative association therewith ,-of' wrap stripes. 40

Figure 12 is a view of the inside of the tubular fabric, showing more particularly the arrange ment of yarns and patterned areas knitted after the design shown in Figure 11.

Figure 13 is a seamless stocking knitted upon the improved knitting machine, and showing more particularly the wide reverse plated pat,- terned areas and the association therewith of. cooperative color within color wrapping yarns r0 in clocking arrangement and spotted patterned areas. r

Figure'14 is an enlarged fragmentary view of that portion of the seamless lmitted fabric of Figure 13 wherein the color within color" wrap r yarn efl'ect is produced at the top of the knitted in their associated relation, in combination with certain jack pressing cams and a series of cooperating yarn feed and wrapping fingers and the operating cams therefor, for the production ofseamless knitted fabric with the patterned effect as shown in Figures 11 and 12.

Figure 16 is a fragmentary view on a developed plane of the pattern drum for actuating wrap yarn feed fingers and associated mechanism of the knitting machine for the production of seamless knitted fabric with the patterned eflect as shown in Figures 11 and 12.

Figures 17 and 18 are respective views on developed planes of the pattern lug lay-outs for the right and left pattern drums of the needle selecting pattern mechanism, for the production of seamless knitted fabric with the patterned effect as shown in Figures 11 and 12.

Figure 19 is a view on a developed plane of the pattern drum lay-.out for the reverse plating attachment pattern drum, for the production of seamless knitted fabric with the patterned eflect as shown in Figures 11 and 12.

Figure 20 is a view on a developed plane of part of the needle set of the knitting machine, showing a different lay-out than that illustrated in Figure 15, for the knitting of tubular fabric with the patterned effects as illustrated in Figures 13-and 14.

Figure 21 is a fragmentary viewon a developed plane of the pattern drum for controlling the wrap yarn feed fingers to produce the wrap yarn of the needle selecting pattern mechanism in order to produce the wrap yarn patterned effects illustrated in the fabric of Figures 13 and 14.

Figures 24 and are modified forms of jack mechanism cooperative in the cylinder of the knitting machine for accomplishing a selected needle elevation in cooperation with presser cams for the jacks such as shown in Figure 6.

In the drawings, wherein for the purpose of illustration is shown the preferred form of the improved knitting machine,and by way of example merely several pieces of patterned fabric which may be knitted thereon, the letter A may generally designate the improved knitting machine, which may include a frame B, cylinder C, means D for operating the cylinder and driving the machine, a set of needles E, a set of rockable patterning jacks F, a second set of jacks G adapted to be actuated by the jacks F responsive to pattern control mechanism H in order to elevate or otherwise actuate certain selected needles of the set E for the reception of needle wrapping yarns, although it is to be distinctly understood that the needles may be actuated by this pattern control mechanism for other purposes than merely theselection of needle wrapping yarns. The yarn controlling device Kis provided for wrapping the yarns upon the needles selected by the pattern control device and associated Jack mechanism to be subsequently described. Means L is provided for actuating the yarn feed fingers of attachment cooperating therewith in effecting a other parts of the improved machine.

large selection of wide or narrow irregular or symmetrical reverse plated patterns in the tubular fabric. A horizontal striping attachment P is also provided in cooperative relation with The sample of fabric R illustrated in Figures 11 and 12 shows the versatility of the machine in its effectiveness to knit tubular fabric with stepped or irregularly formed reverse plated patterned areas tapering about one-half of the circumference of the tubular knitted fabric, in association with horizontal striping yarn change to vary the color of the reverse plated patterned areas along the fabric, and in association with cooperatively disposed wrap yarn striping or patterning. The

other sample of fabric illustrated in Figures 13 and 14 shows the incorporation with the large rotary cylinder type shown in U. S. Patents- 933,443, and 1,152,850, or of the Well known stationary cylinder type with revolving cam set, since the improved features of the knitting machine shown in this application are adaptable upon either. rotary or stationary cylinder types of knitting machines. The frame B has a supporting bed 20 upon which the cylinder C is rotatably mounted. This cylinder C is considerably longer than the ordinary cylinder stocking knitting machines, because of the needle selecting mechanism associated therewith, as shown in Figure 6. The cylinder C has a gear wheel 2| attached at the lower end thereof and resting upon the bed 20 of the machine on a ring-shaped anti-friction bearing 22. This enables a smooth and easy rotation of the cylinder, as can readily be appreciated. The means for rotating and oscillating the cylinder C may be of the usual type, similar to those shown in the patents above mentioned, and more particularly U. S. Patent 933,443. The cylinder C is driven off the main shaft II, which as shown inFigure 4 is provided with the usual gearing and clutch mechanism, and through the pinion 22 drives a gear wheel 23 known conventionally as the 104 gear.

The cylinder C except for its length may be of usual construction. It is provided with needle and jack grooves 25 wherein the needles of the set E are disposed and the jacks of the sets F and G are arranged.

The needles of the set E may be of any approved type, although latch needles are shown. Any number of needles may be provided dependent upon the type and gauge of tubular fabric being knitted. The needles are divided so that about one-half of them have long butts 40 and the other half have short butts M; the latter being shown in full black in Figures 15 and 20 of the drawings.

Each slot in the cylinder C is of course provided with one of the needles of the needle set, and is also provided with a jack 3| of the set G disposed immediately beneath the needle 32 and also a pattern jack 33 of the set F disposed in the slot beneath the jack 3| and cooperative therewith.

The jacks 33, as clearly shown in Figure 6 of the drawings, is of strip-like form, preferably of metal and longitudinally rigid to enable it to rock the jacks 3| of the set G. Each of the jacks 33 is provided with a fulcruming lug 35 on the edge thereof facing the bottom of the cylinder slot, which fulcrums in a depression or seat 36 grooved around the wall of the cylinder C. The jack 33 below the fulcrum lug 35 is of any approved length, and is provided with a plurality of frangible butts 31 which may be finely gauged and quite closely spaced together.

operate with the presser cams of the pattern mechanism H to be subsequently described. The jack 33 above .the fulcrum lug 35 has an extension 38 adapted to lie in the slot of the cylinder behind the lower portion of the cooperative butt of the respective jack 33 that the jack 3| course normally urge the jacks 3| and 33 to the position shown in the left hand slot in Figure 6 of the drawings.

The pattern mechanism H is generally for the purpose of actuating the jacks in order that se lected needles may be elevated for the taking of predetermined yarns in wrapped relation thereon, as accomplished by the wrap'yarn feed mechanism K. This pattern mechanism H includes two sets 50 and of presser cams or plungers which are spaced about the cylinder, preferably at the front thereof, and are respectively actu-.

ated by the pattern lugs upon pattern drums 52 and 53 respectively. Each presser cam set 5|] and 5| consists of a frame 54 provided at opposite ends with narrow closely spaced shelves 55, as shown in Figure 6 of the drawings, so as to dispose the presser cams or plungers 56 of each of,

the sets 50 and 5l'in closely spaced parallel superposed relation for rectilinear sliding in a predetermined path. These presser cams are arranged in spacing according to the spacing of the finely divided butts 31 upon the rocker jacks 33, as shown in Figure 6, and it is obvious that upon pressing a cam or plunger 56 inwardly it will operate upon the butt of the jacks 33 in the path thereof, if said butt has not been broken off, in order to rock the jack 33 for the purpose above described. These plungers or presser earns 56 are of the general shape shown in Figure '7 of the drawings. They have a rather pointed end facing the respective pattern wheel or drum and the opposite end is angled as shown at till. Springs 58 urge the individual presser cams away from the needle cylinder; the movement being limited by abutment of the angled end 57 against the frame 54. The edge of the presser cam facing the cylinder may be divergently sloped with respect to the circumference of the cylinder to enable a gradual rocking of the jack 33. The frame- They may be broken off in any selected arrangement to cowork 54 for supporting the presser cams may be readily disassembled as a unit from the bed of the knitting machine, and it may be disassembled to permit removal and replacement of the presser cams. Each presser cam set, upon the top of the frame 54, is provided with one of the cams 42, which may be set in fixed position by means of adjusting screws 60, as shown in Figure 6 of the drawings, for the above described purpose of elevating the jacks 3| whose butts 39 are thrown into position by the aforementioned pattern mechanism H.

Referring to the mounting of the pattern drums or wheels 52 and, 53 and the means for step by step advance rotation thereof, it is broadly the purpose in providing said pattern wheels to selectively arrange lugs thereon in convenient manner for the operation of the presser cams above described. Various methods of construction may be adopted, such as the use of vertical strips in the wheel about the circumference thereof provided with frangible butts which may be broken to suit the pattern. Or removable pins may be disposed in the wheel at suitable elevations about the circumference of the wheel. In the example shown, however, each wheel consists of a supporting post 6| removably secured at its lower end in a slidable supporting table 62. This supporting table 62 is slidably mounted upon a stationary bed 63 which is bracketed at 64- upon the bed of the knitting machine, as shown in Figure 6, at the front of the same, so that the table 62 and the pattern wheels therewith may movetowards and from their respective presser cam sets. To guide this motion the bed 63 may be provided with suitable guide ribs 65 and the table 62 may be provided with slots to receive the same, as shown in Figure 7. A cylindrical shell 61 may be removably mounted upon each of the posts 6|, provided with longitudinal passageways therethrough for receiving clamping bolts 68 by means of which a ratchet wheel 69 may be clamped at the lower end of. the wheel. The cylinder portion 61 of the wheel is adaptedto receive removable ring discs of the well known type, which are provided with a circumferential row of spaced frangible butts thereon which may be broken off in any selected arrangement. A cap 1| maybe provided on top of the wheel removably held thereon by set screws and a clamping nut or screw 12 of well known construction.

The operation of the slide table 62 willbe apparent from Figures 1, 3 and 6 of the drawings. A bell crank lever, 14 is pivoted at upon a bracket 16 attached to the bed of the machine, and the upper end of the bell "crank lever is connected to an extension I1 upon the table 62. The other end of the bell crank lever has a link 18 connected at its lower end with a slide block 8|! (shown in Figure 3 of the drawings) which slides in a frame 8| of the machine and is operated by a lug upon a pattern drum 32 of the machine; This mechanism throws the table 62 forward during knitting of the heel and toe of a stocking, so that the pattern control drums or Referring tothe means for step by step advancement of the drums 52 and 53 of the patterncontrol mechanism H, an oscillating pawl supporting block so is provided for each of the drums 52 and 53, preferably below the ratchet wheel 69 thereof, and whereon the pawl mechaniams for the respective drums are mounted. These pawl mechanisms are substantially the lame, and best illustrated in Figures 7, 8 and 10 of the drawings. As shown in the latter figure, each drum pawl mechanism consists of an upper pawl 9| and a lower pawl 92, both of which are pivoted intermediate the ends thereof at 93 upon the respective plate 99. Springs 94 normally urge the pawls into engagement with the teeth of the respective ratchet wheel 69. The upper pawl 9| of each pawl mechanism has an extension 55 thereon in a path to engage the lower pawl 92 when the, outer end of the upper pawl is swung towards the respective ratchet wheel associated therewith. in order that both pawls may be moved out of engagement at their pointed ends with respect to the teeth of the ratchet wheel. The means for accomplishing this action will be subsequently described.

As before mentioned the plate or member 62 which supports the pattern wheels or drums is moved away from the cylinder in order to place the trick lugs out of operating path of the respeotive plunger or presser cams 56. This takes place when the machine is knitting the heel and toe. When this occurs, in order to bring the pattern drums 52 and 53 to initial starting position, that is, to reset them, the upper pawl section 5| of each pawl mechanism remains operative upon the respective ratchet wheel 62, and the lower pawl section 92 is drawn out of operation with'respect to the respective ratchet wheel. As will be noted from the drawings each lower pawl section 92 has an upstanding pin 91. As will be noted from Figure 7 of the. drawings the frames of the presser cams are provided with cam extensions 99 forwardly of the respective pins 91 of the lower pawl sections so that as the supporting plate 62 is moved away from the frame of the knitting machine the pins 91 will slide along the cams, 99 and move the pointed end of the pawls away from the ratchet wheel 69. This will not, however, move the upper pawl sections 9| out of engagement with the teeth, of the ratchet wheels 52, and the step by step advancement ofthe drums or wheels 52 and 53 will continue until a blank or filler piece in the upperv part of two of the teeth of each ratchet wheel 62 rides opposite the pointed end of the pawl section 9|, and at which time thepawl sections cannot further advance the ratchet wheel 69 This resets the pattern drums or trick wheels. As will be noted from Figures 17 and 18, showing the developed views of the pattern drums 52 and 53, these blank pieces I99 occur only on the upper half at two of the teeth of the ratchet wheels 69. Thus even during knitting of the heel and toe the pattern drums may be moved in their step by step advancement until their resetting position is obtained, and when the pattern drums are again moved into position for operation upon the presser cams 56 the lowerpawl sections 92 will insure a continued rotation of the pattern drums or trick wheels.

Referring to the means for synchronized step by step advancement of the pattern wheels 52' on a bracket at the rear of the machine. This lever ill at its lower end extends into the operating path of four lugs III on one side of a wheel I95, located apart. The wheel is rotatably supported upon the frame of the knitting machine in any approved relation and geared for synchronized rotation with the conventional 104" wheel 23. The wheel I is of the same size and gear ratio as the 104" wheel 29.

As will be noted from Figure 'l of the drawings a spring. I95 normally urges the lever I95 forward to a position where the operating throw of the lug I95 of the wheel III on the pattern wheel advancing mechanism is sumcient to advance the drums the length of two teeth of the ratchet wheel 69. It will be noted that the two pattern drums 52 and 53 have their pawl supporting bases connected for synchronous operation by connecting bar I I9. During normal operation of the pattern mechanism H, however, it is only desirable to have each pattern drum advanced for the distance or length of one tooth. This is accomplished by providing a detent III, shown in Figure 7, spring actuated at I I2 so that the restraining end thereof operates to engage a pin H3 to limit the advancement of the pattern wheels 52 and 53 for the length of one tooth of the ratchet wheel 69, as will be quite apparent. This detent lever is sometimes thrown out when knitting particular designs. For instance, if the machine is knitting a continuous wrap stripe pattern throughout the stocking, the pattern being, say 42 courses in length. If now there are 45 lugs about the circumference of each pattern drum 52 and 53, it can readily be understood that there are six extra spaces in theforty-eight divisions which must be accounted for in order to continue without course spacing the successive wrap patterns. This regulation is effected by providing a line of lugs H5 along twelve divisions of the pattern drum, as shown in the developed view Figure 17, which throw the detent III out of operation in order that during this interval the advancing mechanism may advance each pattern drum52 and 53 for the length of two teeth of the ratchet wheel 65, every time. a lug I95 of the wheel I96 actuates the advancing mechanism. With this arrangement it is perfectly obvious that wrap patterns may vary as to the number of courses which they cover and such patterns may continuously appear one after the other without 'or with any desired spacing, since with the mechanism illustrated and described for advancing the pattern wheels, each advancement may be for the length of one tooth or more than one tooth as required.

Means is provided to stop the advancement of the pattern wheels 52 and 53 while knitting the heel of the stocking in order to hold the pattern controlling lugs or butts of the trickwheels in proper place, so that the pattern may be properly completed when knitting upon the upper foot portion is resumed. Additional means is also provided to selectively throw one or other of the pattern wheels 52 and 53 out of operation while the other remains operative. These means, as shown particularly in Figures I and 9 ofthe drawings, consists in the provision ofpawl throwout levers I29 and HI for the pawls of the drums 52 and 53 respectively, pivoted at 122, which are normally inoperative, but which may be moved together or selectively into engagement with upstanding pins I23 on the uppermost pawl section of each pawl assemblage. -Operationof Zthese throw-out levers against the pins I23 will of course throwboth pawl sections II and 92 out of operation due to the extension 35 (see Figure 10). Bell crank levers I and I25 are pivoted at I 21 on the frame of the machine. At similar ends thereof they are respectively connected by links I28 and I29 with the free ends of the pawl throwout levers I20 and I2I, as shown. in Figure '7. At the rear part of the frame of the machine, as shown in Figures 2, 5 and 7 of the drawings there are provided a'pair of bell crank levers I30, pivoted at I3I, the upper ends of which are connected by rods I32 with the bell crank levers I25 and I26. The other ends of the bell crank levers I30, as more particularly illustrated in Figures l and 7 of thedrawings, are connected by rods I35 with certain levers I3'I pivoted at I38 These levers I31 at their free ends operate upon a'pattern wheel on the frame of the machine.

or drum I40 such as has been described in my above mentioned co-pending application. Lugs on this pattern wheel actuate the throw-out levers I20 and I 2I through the connecting mechanism above described. The levers I31 are illustrated in side elevation in Figure 3 of the drawings, but

yarn feed fingers of the-wrap. yarn feed mechanism. Through control of the throw-off levers I20 and I2I individually off the pattern control drum I40, the pattern control wheels or trick wheels may be selectively thrown into or out of operation, as desired.

As above mentioned, in order to hold the wheels 52 and 53 until after knitting of the heel, when it is desired to resume a wrap pattern on the foot portion of the stocking, the throw-out levers I20 and I2I may be operated in a different manner than that above described, and simultaneously. Such arrangement is shown in Figures 1 and 7 of the drawings, by employment of a bell crank lever I50, pivoted at I5I on the frame of the machine. Its upper end is provided with a l pair of pins I5I which operate in the slotted ends of a pair of levers I53 and I54 which arerespectively connected with the bell crank levers I25 and I26. The other end of the bell crank lever I is connected to suitable mechanism I55 operated by lug control 011' a pattern drum I51, as

shown in Figure l of the drawings. It will be noted that with this means both the throw-off levers may be simultaneously operated to hold the pattern control wheels or drums 52 and 53 in proper position, or through the first means above described these trick wheels 52 and 53 may be selectively and independently actuated off the control drum I40.

Referring to the yarn wrapping attachment K and its operating means L, the same are used to selectively control the wrapping of various contrasting yarns upon selectively arranged predetermined groups of needles, in accordance with the teaching in my co-pending applications Serial Nos, 591,689 filed February 8, 1932, and 662,354 filed March 23, 1933. A bracket 90 is provided as part of the frame of the machine rotatably supporting a suitable bobbin stand and drive gearing thereon (shown in the co-pending applications above referred to). The bobbin stand includes a rotary spindle 9| supported by the portion 92 which is keyed to the shaft 9|.

Many of these levers I3'I -my above identified applications.

and the threads extend therefrom downwardly through suitable tensioning devices which are specifically old in the art and thence downwardly through a suitable concentrating guide from whence they converge into the wrapping attachment K. I

The yarn wrapping attachment K includes a yarn feed finger head I02, specifically described in my above identified co-pending application, In the peripheral slot vertically provided in the head I 02 yarn feed fingers III are provided which are fulcrumed at H2. Normally they are in inoperative position, maintained in such relation by a circumferential spring II3 and individual springs Ill. The threads extend downward- -1y through the, head and are threaded through the lower ends of these yarn feed fingers, which are suspended just above the needle cylinder so that they may be swung from inside'of the needle line to outside of the needle line in order to wrap yarn on selected groups of needles in accordance with the description in my above identified copending applications. Each of theseyarn feed fingers may contain a plurality of frangible butts whichmay be broken oil as desired so as to leave certain other butts at selected levels for operation by selected presser cams in accordance with that feature of my invention described in my above identified co-pending applications.

In order to control the wrapping yarns so that they may be wrapped at the desired locations upon one or more needles, the means employed is substantially the same as described in latch ring I30, which is of usual construction, has a plurality of yarn guide wires or members I34 and I35, for the needles which are respectively elevated by jack mechanism off of the drums 52 and 53. Each of these yarn guide wires brought into position by pattern drums 52 or 53, as the case may be, only sliding ofl of the yarn guide wire or member I34 or I35 when the warn feed finger III is retracted, as has been specifically described in my co-pe'nding applications above mentioned. A curved wire or bar I33 is provided along the inside of the line of needles at a location adjacent the hook ends thereof when lowered, to prevent yarns from the yarn wrapping feed fingers II I becoming entangled with the web holders and needles other than those intended. The yarn guide members I34 and .I35 are simultaneously operative into or out of yarn retaining relation with the yarn feed mechanism 01 the wrapping attachment in a manner which need not be specifically described here but has been set forth in my above identified co-pending applications.

The means L for actuating theyarn feed fingers of the needle wrapping yarn mechanism K contemplates the disposition of a pair of cam supporting blocks I43 and I upon a pivoted supporting arm I 45 as fully described in my copending application Serial No. 662,354 filed March 23, 1933. These blocks each support four cams, although the number may vary as desired. The

cams are of the presser type and actuated to engage the butts placed at various levels on the fingers III of the wrapping attachment K in order to selectively swing the fingers I II at two diiferent points for selective contral of yarns having various characteristics.

For the knitting of the pattern shown in Figurea 11 and 12 of the drawings, the topmost presser cm of the block I44 is used, and the second presser cam from the bottom in the block 140 is used. These cams are respectively designated at I64 and I62 in Figure 15 of the drawings. The cams in the block I43 are actuated by levers I pivoted at I50, as shown in my above identified applications and also in Figure 1, and the cams of the block I44 are actuated by levers I60 pivoted at IBI, as shown in Figure 1. All 0'! these operating levers have connecting rods I65, shown in Figure 3, pivotally connected therewith and slidabie through a suitable guide block I66 mounted upon the bracket 00' of the rnachine. Bell crank levers I61 are pivoted on a similar bracket at III with which the rods I65 are operatively associated as indicated in my above identifled applications. The other ends of thebell crank levers have connecting rods I connecting them with suitable plungers I12 mounted within an eccentrically pivoted supporting block I'll. as shown in Figure 3. The block I13 is mounted to turn upon a horizontal axis at I14 and the plungers I12 are connected by links I15 with-the rear ends of certain of the pattern drum operating levers I 31 above described. It is obvious that lug actuation of the plungers I12 through the levers I31 and I15 will, through the connecting linkage, operate the cams in the blocks I40 and I44 for moving the yarn fingers III- into operative relation with the predetermined elevated groups of needles, in accordance with the arrangement described in my above identified co-pending applications.

In order to cut out the feed of patterning yarns, means is provided to prevent operation of the cams in the blocks I43 and I44. This means consists of a lever I04 pivoted between its ends at III, as shown in Figure 3 of the drawings, connected siidably by a pin and slot connection with the outer end of an arm I86 which is keyed to, the shaft on which the block I13 is eccentrica'lly pivoted. Aflever I81 operative by means of a lug upon the pattern drum 82 through a connecting rod I00 actuates the eccentric block I12 in a manner which has been described in my above mentioned applications.

'lhe pattern drum I40 is advanced step by step 08, of the cylinder driving mechanism of the machine. This drum has a ratchet wheel 64* with "sixty teeth about its circumference. Since it is intended to advance the drum I40 the length of one tooth for each two revolutions of the cylinder 0 the "104" wheel 23 is provided with diametricallyopposed lugs 65 on the right hand side thereof, facing the front of the machine, as shown in Figure 5 of the drawings, which operates a lever arm 66', shown in Figure 2 of the drawings. for turning a shaft 61 to which said lever arm 06 is keyed. This shaft 61* has an arm 60 keyed therewith, as shown in Figure 3, and said arm is provided'with a pawl-69= freely pivoted thereon resting upon the teeth of the ratchet wheel 04. A spring 10 urges the shaft 61" into such position that the lugs 60 on the gear wheel will properly operate the pawl 69 for step by step advancement of the pattern wheel I40. All oi this mechanism is described in my above identified co-pending applications.

In order to cut out of operation the drum I40 means is provided to trip and hold the pawl advancing lever 60* out of operation, and this means is tripped in predetermined manner by a lug ll upon a pattern chain 18*, as has been described in my above identified applications, and as speci: fically claimed in my co-pending application, Serial No. 666,914 filed April 19, 1933.

Referring to the operation of the horizontal yarn striping attachment P, the same is used during the knitting of plated fabric in order to change the horizontal striping yarns. number of yarn changes may be provided, but in the sample of fabric R only two yarn changes are shown. This horizontal striping mechanism has been detailed in my co-pending application Serial No. 662,354, filed March 23, 1933, and briefly consists of yarn guide fingers 2I2 and 2 I3, which are pivoted upon the latch ring in the usual manner and normally urged by springs into yarn feeding position, as will be well understood by anyone skilled in this art. As many of the yarn guide fingers for the horizontal striping mechanism may beprovided as desired. In the present invention only two of the yarn guides 2I2 and 2I3 are provided for the knitting of the fabric R.

For knitting a stocking on the knitting machine 'A with the pattern of the fabric R, a body yarn 206 is fed from a finger 2I0 (similar to the feed fingers 2I2 and 2I3 above mentioned). This body yarn 206 is fed to the leg of the stocking throughout its length. A heel and toe yarn 201 is likewise fed from a yarn feed finger or guide 2I I, and brown ,and green striping yarns 208 and 200 are respectively fed from the fingers M2 and 2-I3. Of course the yarns 200 and 209 are alternately plated with the body yarn 206. Through tensioning means well understood in this art the yarns 200 and. 209 may be plated on the outside of the fabric to produce alternate horizontal striping effects, and the yarn 206 may be used as 'a lining yarn. In the fabric R the body yarn 206 appears on the outside of the tubular fabric and the horizontal striping yarns are used as lining yarns, but they are reverse plated in certain areas to produce the alternate contrasting reverse plated effects shown throughout the leg in Figure 11 of the drawings.

The operating means of the horizontal striping attachment P includes connecting wires 2I6 which operate the yarn feed fingers 2I0 to 2I3 inclusive in a manner well understood in this art and specifically shown in my co-pending application, Serial No. 662,354 filed March 23, 1933. They extend downwardly through the machine and at their lower ends are connected operatively with the usual levers 2". The latter ride upon suitable cams of a conventional drum 2I8 at the front of the machine, shown in Figure l of the drawings. Since any number of yarn fingers may be provided on the latch ring, for the knitting of the above described yarns, and also additional yarns such as for the foot, reinforcing and other splicing. The horizontal striping attachment P additionally includes levers 220, shown in Figure 5 of the drawings, pivoted intermediate their ends at HI and at their forward ends engaging the respective wires M6 for pulling the Wires which are respectiveh' associated with the horizontal striping yarn feeds 2I2 and H3 into yarn feeding position alternately. The opposite ends of the levers 220 are controlled by a pattern drum 223, best shown in Figure 4 pivotally mounted upon a shaft 22I on the rear of the machine. This pattern control mechanism has been de A large

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