Патент USA US2095133код для вставки
oct. 5, 1937. A. HOL-rz 2,095,133 .KNITTING MACHINE Filed Feb. 13, 1955 5 Sheets-Sheet l »Q5/9,9149@ /L/m rz l BY @è t ATTORNEYS' _ Oct. 5, `1937. A. HoLTZ 2,095,133 KNITTING MACHINE Filed Feb. 15, 1935 5 Sheets-»Sheet 2 ATTORNEYSl Oct. 5, 1937. A. HoLTZ - . 2,095,133 KNITT ING MACHINE Filed Feb. 15, 1935 5 Sheets-Sheet,5 /53 fog f /90 736 /20 4 /07 zNvENToR. Heen/«MM H04 'TZ BY _ , ì f ATTORNEYS’ Oct. 5, 1937. ' A_ HOL-rz y 2,095,133 KNITTING MACHINE Filed Feb. 13, 19u-3.5 ~ 5 Sheets-Sheet 4 /AZZ v 50 INVENTOR. Heen/¿QM /%¿ ïZ BY /QM à@ ATTORNEYS Oct. 5, 1937. A~ HOL-rz ' 2,095,133 KNITTING MACHINE: Filed Febv 13, 1935 5 Sheets-Sheet` 5 ATTORNEYS Patented oct.Y s, 1937 2,095,133 i " UNITED STATES PATENT i orrlcs KNITTING MACHINE f Abraham Holtz, New York, N. Y., assignor to Sadinoiï & Wendroff, Inc., New York, N.'Y., a corporation of New York ’ Application February 13, 1935, Serial No. 6,275 12 Claims. (cl. afs-ss) The presentinvention relates to improvements in knitting machines and it particularly relates Another Yobject is to provide'Y an improved knitting machine for curtains which will enable the production of a wide variety of designs there* upon with the employment of relatively compact to improvements in the jacquard mechanisms as sociated with knitting machines. Y ` Although the invention of the present applica simple , of the nat Y - ' the followingspeciñcation. A ' Y l In accordance‘with theVV present invention, an type, which may be Vconveniently utilized for the knitting Vof curtains. machinery. Other objects will appear during the course of >tion has a broad application to knitting machines generally, it will be specifically described in con 1 nection with its application to knitting machines operating mechanism is provided for the jacquard » chain which will permit of a considerable reduc- 10 » tion inthe length of said chain, thereby _eñect In machines of the above character it has been possible to knit various predetermined designs ingV an economy of material and space, and by the use of a jacquard mechanism consisting of an endless chain, the various links of which are providedY with a plurality of'actuating mem facilitating the assembly lof the chain and the positioning of the actuating members thereon re bers for controlling Vthe thread-guiding elements To the end that this may be accomplished, the quired to form any particular design. ' 15" , of the machine.,r Said actuating members are operating mechanism for the jacquard is designed arranged on the chain in conformity with the particular design to be made and, as the> chain is intermittently advanced, in the direction of itslength, Vsaid actuating members are successively to reverse the direction of movement ofthe same at predetermined intervals which may be uni form or varied, depending upon the design being formed. By thus intermittently reversing the movement of the jacquard chain, as distinguished brought into position to` actuate the usual recip rocatory bars which carry "said»thread-'guidingY from the customary ymovement thereof always in the same direction, many of the actuating mem bers for the ' thread-guiding elements may beY 25 elements. By suitable mechanism theY chain is moved,V after each operation of the knitting Vmachine to used repeatedly, during the formation of Vone re- ' cause said actuating members to engage one or more of the corresponding bar or Vbars so as to peat ofY the design, to Ymake symmetrical or repeat shift the same to position the thread-guiding Y In the preferred form of the present invention elements properly thereon relative to the >needle theV reversing mechanism `preferably includes a portions . tainV stitches Y ' 3o , so that such reversing may take placeat pre 'Heretofore the jacquardchains, the entire . » length of vwhich> are employed in the formation of one repeat of the complete design, have each Y been- advanced only in- one direction and‘this has necessitated the use, in'many instances, of ex tremely long Vchains and a correspondingly large determined intervals,` or continuously asmay be desired. guiding elements. i ' Moreover, the variety of» designs which may be obtained is quite Vlimited by the diliicultiesV of „mechanical construction, and by theV increased complication of the machinery necessary for more Vintricate and varied Yfabric constructions. f >‘Among the> objects ofthe present invention are to provide an'improvedjacquard mechanismY for knitting machines of the character above de- , scribed which will enable relative> simplification i ' of the mechanical structure with lessened cost in maintenance in operation and which at' the 'same time will enable a greatly increased variety and range of designs by relatively simple manipu 1 1 , ' ‘ ' V Y The inventiveVV idea involved is capable of re ceiving a variety of mechanical expressions, one‘ number of actuating ,membersforï the thread» , 55 ‘ lations. Y constitutingY _apart of ,the complete chain, Vwhich control the main Yjacquard lchain design. - ' controlling cam and a Vreverse control pattern Y bar of the machine to cause the formation of cer i thereof. of which, for purpose Yoi? illustration,fis shown in the accompanying drawings, in Whichz- Y - "Figurer 1 is a fragmentary front elevation of one -end of aY knitting machineof known construc tion, illustrating the reversingY pattern’mecha nism of >the `present invention applied thereto from the line I--l of Fig. 2. ' Í i FigureZ is an elevationl taken at right angles to Figurel and substantially from the line 2,-2 thereof, showing a part of the mechanism utilized to .reverse the direction of movement Íoflthe , jacquard chain. , _ Y Y Figure 3 is a transverse'~ sectional view onthe line 3--3’Y of Figure 2 uponVA an enlarged scale. l Figure 4 is an enlargedìelevational view from the line 4_4 >of Fig. 1, partly-in section, illus trating the aforesaid reversing mechanism and the control device therefor, said mechanism be- 55 v 2 2,095,133 ing shown in position just after its operation in reversing the direction of movement of the jac quard chain. Ul Figure 5 is a side sectional view upon the line 5_5 of Fig. 4. Figure 6 is a fragmentary side elevational view upon an enlarged scalev on the line 6_6 of Fig. 1. Figure 7 is a side sectional view taken on the line ï-~`i of Fig. 6, and embodiments. In the illustration of the present invention, only so much of a knitting machine of known con struction is shown as will enable- those skilled in the art to obtain a complete understanding of the application of the instant invention thereto. Referring to Figs. 1 and 2 a> ñat bed knit ting machine is provided with a frame I0 which 20 carries a needle bar diagrammatically indicated at il, which extends entirely across the ma chine. The needles of the machine are car ried, as schematically indicated at I2. Operated in conjunction with the needles of N) Ul the machine and adapted to reciprocate trans versely across the needle bed, are the thread or yarn guides I3, which are provided with the collars I4 fixed by the set-screws I5, on the re~ These reciprocatory bars 30 are supported in slots or recesses Il', in the plate I3, which is bolted at I9 on the frame i0 of the machine. As these bars I6 are intermittently shifted back and forth by the jacquard mechanism, they will cause the thread guides I3 to guide different threads to the various needles which'will result in the formation of the pattern. Each of the bars I 6 (see Fig. l) is provided with the end contact plates 20, which are adapt 40 ed to be actuated by the pins or jacquard ex tensions 2I. The pins 2l are carried by the links 22 of the jacquard chain and are arranged so as to project different distances and to cause varied reciprocating movements of the needle bars I6. The jacquard chain 22-22 (see Fig. l) rides upon and is advanced by the square or polygonal sprocket element 23, which is rotatably mounted on the upper end of the reciprocatory arm or 50 holder 24. The reciprocatoryV holder 2li is piv otally mounted at 25 upon the ñXed arm 25 eX gear or pinion ¿if-i. The gear lid. meshes with the gear 45, ñXed to the shaft 4S. The shaft 46 bears in the sleeve 4l below and offset from the bearing sleeve 39. The sleeve lll is provided with a base flange 41a by which it is bolted to the arm 2li at filo. 10 _ The gear ¿i8 drives the pinion 49 fixed on the end of the shaft 38 through the intermediate gear 50 which is rotatably mounted at 5I in an arm 52 projecting outwardly from the bearing sleeve di. The gear train ¿lll-_e5 and ¿iS--äO-Áiä will cause the ratchet wheel ¿i2 to drive the sprocket 2S in the opposite direction from the ratchet lill and reverse movement of the chain 22-22. As appears from Fig. 1, upon each recipro 20 cation of the arm 24 the ratchet 40 will be ad vanced one-quarter turn by the pawl member to, the lower end of which is provided with the inturned catch or tooth Si cooperating with the teeth 62 of the ratchet iii). The detent rod G3 (see Fig. l) is pivotally mounted at ¿it upon the frame extension i8 and is pressed upwardly by the roller 65a on the right arm 65 of the lever 56 which is pivotally mount ed at til upon the reciprocatory arm 2li. The left end of said arm GS is depressed by the coil spring 68, as indicated at GS. The other end of the coil spring G3 is connected at 'i0 to the lower portion of the reciprocating arm or le ver 24. As the ratchet il@ moves forwardly upon each reciprocation of the arm 24, the teeth 6I of the pawl ESG will slide rearwardly until it passes beyond the upper right tooth G2 of the ratchet. Then as the ratchet ¿if? is swung backwardly upon 40 the return movement cf the reciprocatory arm 2li, the tooth i5! will catch said upper right tooth 82 and willvadvance the ratchet il?) one-quarter turn, advancing the chain so that the next set of pins 2l are in position ‘to actuate the thread carrier bars IS, through the contact plates 2o. The detent rod acts to hold the ratchet ¿lû in each position (shown in Fig. 1) after it has been advanced one-quarter turn by the pawl 6o. The pawl E@ for the jacquard chain ratchet lli), l as shown in Figs. 2 and 3, is received in the collar tending out from the frame of the machine. The 'H and is adjustably fixed therein by the set the pivotally arm. combination 2S isconnected reciprocated serving to the byasthe gear a crank. link wheel 2l The 29 which atgear screw l2. The collar is provided with a sleeve member 'F3 which slides upon the rod 'lâ and is wheel 2i) is driven by the shaft 3l of the main pressed against the face 'l5 of the arm 76 by the coil spring i7. The coil spring 'I'I reacts at its op mechanism of the machine. ' As best shown in Fig. 6 each of the links 22 GO is provided with outset forward arms 3E and rearwardly extending inset arms 33 at the ends thereof, which arms are pivotally connected at 3@ by the pivot bars 35. The transverse mei bers 3% of said links each carry the pins 2i as indicated at 31. The transverse element 36 of the link 2E is preferably of sufficient width to carry a number of pins 2l which will cooperate with the needle bars it. 70 ' The reverse ratchet rides loosely upon the shaft 38 and is bolted as indicated at 43 to the v Figures 8 and 9 are fragmentary side eleva tional views similar to Fig. 4 illustrating other ciprocatory bars I5. 4I, which causes forward movement of the jac quard chain 22-22. ` The Vsprocket wheel or carrier 23, as shown in Fig. 6, is rigidly connected to the shaft 38', which bears in the sleeve member 39 carried on the upper end of the reciprocating arm 2li. To the shaft 38 at the left side of the bear g sleeve 39 ’l is pinned the ratchet wheel 4U, as indicated at posite end against the washer 78. The tension on the spring is maintained by the nut lg which ñts on the threaded end ile of the rod lli. The arm ’i6 is pivotally mounted at 92 on the rod 74. GO The end of the rod 'iâl is ñxed at 8| in the boss 2 ofthe bracket 83. The bracket 83 is bolted at 34 to the vertical extension 65 from the frame plate i8. The forward arm B3 of the bracket 83 is bolted as indicated at 8l (see Fig. l) to the arm it which. carries the pin 89 serving as a bottom rest or stop for the jacquard pawl 58. The arm S6 is provided with an arcuate enlargement Si? having the slot di in which the bolt 81 is fitted, enabling convenient adjustment of the position of the arm 'EG and the pin 5S. The pin 89 will prevent said pawl @il from dropping below its proper position to enab-le the tooth 6i to engage the next ratchet tooth 62 upon forward movement of the arm 24. The reversal of movement of the jacquard chain :2,095,133V ' 3 '22-22 is caused by a shifting of the jacquard pawl ì if desired, it may be provided with the same num ber of teeth. The reciprocation of the element |05 carrying the pawls I I8 and |36 is sufficient to 60 fromY engagement with the teeth 62 of the ratchet 40 to- engagement with the teeth 93 of the ratchet 42 (seeFig. 6). The forward move advance the ratchet I 31 one tooth and the ratchet IIS one or two teeth for each. revolution of the \ ment of the ratchet 42 by the paw1‘60 will then drive the shaft 38 in a reverse'direction through the gear train 44, 45, 48, 49 and 50. ` , This shifting'of the pawl from'the> ratchet 40 cam |03 and reciprocation of the follower bar |05. The ratchet |31 is provided with the detent | 44 having a boss >|45 cooperating with the recesses tothe ratchet 42 is accomplished through the mechanism bestfshown in Figs. 1, 2, 4 and 5. |46 in the Yside of the ratchet |31, the lower end of the detent being mounted at I 41 upon the 10 .The gear‘ 29, asV shown in Figs. 1 and k2, meshes with the gear |90 on the shaft> IOI, said shaft I||| support rod I I3. Y being provided with the bearings IGZ-|02 and Rigidly connected to the collar |38 of the ratchet |31 is the cam |48 having the lobes I 49, extending across the plate I8 Y of theY machine which as shown in Figs. 2 and 4 are symmetrically frame. positioned around the periphery thereof and move 15 in the -direction indicated by the arrow |50 to co» operate with the roller |5| on'the follower arm |52. The follower arm |52 is‘pivotally mounted . To the end of the shaftl I0| is connected the cam ‘ |03 which cooperates with the follower roller |04 on the pawlactuator memberror bar |05. ' The lower` inset portion |06'of the bar |05 extends at |53 on'the bar |54. The bar |54 (see Fig. 2) is provided with a col V20 20 inside of the cam’ |93 and is slotted, as indicated lar |55 at-its other end, which collar is fixed by a at |01 in Fig. l. The slotted portion |01 is re ceived upon the shaft I0 I and is thus guided in its set-screw |56 upon the ro'dv |51 extending up reciprocatory vertical ‘movement uponcoopera-Y wardly from the top of the frame extension 85. Pivotally connected at IBI to the arm |52> is thc tion between the >cam ' | 83 and its follower |04. 25 The upper outsetV portion |01 of the bar |05 is link |62, which at its other end is pivotally con 25. provided with the slot |98, into which projects nected at |63 to the arm |64 of the bell crank f ' ’ ` the arm |99 adjustably mounted by the set-screw lever |65. The bell crank. lever |65 is pivotally mounted YI|2 in the base '|I0 of the clevis |II. The clevis ` | I I is mounted on the rod I |3 projecting from the side of the machine by the set-screw I I4. The rod |09 is provided'with the nuts or contact pieces I I5, which maintain the rod in position in the slot at |66 upon the extension |61 from the frame of the machine. The other ‘arm |68 ofthe bell |88 during the reciprocatory movement. 1I on the sleeve 13 (see Fig. 3) and move the pawl rod 60 so that the tooth 6| thereof will ride upon crank lever |66 carries the adjustable pin |69 the end |10 of which is adapted to contact the boss To the upper outset portion |01 of the bar |05 35 is connected »the bearing,` mount |I6 in which the the ratchet 42 instead of the ratchet 40 to reverseY pawl rod I|1 is pivotally mounted. The rod! |1 (see Figs. 1 andl 2) ,carries the pawls I'IßV and |36, the jacquard chain 22-22. The reversal will obviously only take place while which are pressed in contact with the ratchet wheels ||9 'and `|31 by the spring |20. Y the follower |51 is riding over the lobes |49 of the cam |48 and the lobes |49 will only elevate the roller I5! after a predetermined number of revolutions ofthe shafts 3| and |8| and recipro . cations of the arm V24. It is obvious that the cam i |48> may be widely varied in shape and the ampli tude of the stroke of the arm |05 and the pawl 40 As the'arm |05 is reciprocated by'coaction ofV ` the 'cam |03 and the roller» |04 the pawls ||8 and. |36 will advance theY ratchet wheels I I9 and |31 by one or two »teeth |2| and I2 la depending upon the throw> of the pawls IIS and |36. 45 ' ' ` The pawl | I3 may be set by a mechanism (not shown) to advance `the wheel ||9 one -or two ` ‘ teeth |2| for each reciprocation, while the pawl ' advances the ratchet |31 one tooth |2|a. Referring to Figs; 2, 4 .and 5 the ratchet I I9 is 50 pinned at |22 to the shaft |23, as is also the collar |24 of the sprocket |25 at*|26. YThe ratchet ||9 will turnthe shaft |23 in the direction |21, upon actuation by the pawl I I8 shown in Figs.' 1 and 2, and the shaft |23 will rotate the sprocket wheel |25. The pattern chain |28 will mesh withthe teeth |29 on the sprocket |25 and be continuously ‘advanced upon rotation of the shaft I 23. The ratchet wheel | IQ-isretained in position by' the detent |30, the end of which is provided with 60 a boss |3| received in the recesses |32 in the side of the ratchet wheel I |9, one of these recesses be ing providedY for each tooth |2| of the ratchetl V| I 9 so that the ratchet will be retained in each posi tion. The spring arm of the detent |30_is rigidly` connected at |33 to the'support arm |13, which » arm is vfixedV at |34 to the frame I8.. As best shown in Fig. 5 the ratchet wheel |31, ` driven by the pawl |36, hasfafcollar |38 loosely turning on the shaft |23 and held in position thereon by thewasher |33. The washer |39 is vpinnedV to the shaft |23 at, |40. `The end ofthe shaft |23 rides in the boss |42 in the frame'mem ber |43 at the rear of the plate |8. ‘ - The ratchetf|31` is shown provided with one .tooth for every two Vteeth of the ratchet II9», but, ||8 may be readily changedf . In Vthe knitting> operation it is desirable at pre-Á determined intervals to prevent operation of the reversing mechanism and/or to delay operation ofthe reversing mechanismrand this is conven iently accomplished by causing disengagement of the pawl |36 and the ratchet |31 during a pre- ' determined or desired number of reciprccations of the arm 24. To accomplish >this reversal the pattern chain |28 (as best shown in Fig. 4) may be caused to ' carry a series of Contact plates |8I,v|62, |82@ of. different or the same shapes and forms, and at different intervals, which plates are continuously advanced with the advancement vof the chain |28 60 upon vertical reciprocation of the arm |05. When these plates turn around the> sprocket l2 E, f ' they contact with the adjustable bar |83 adjust ably connected at |8311 Vto the L-s‘naped rod |84._ The lower arm of the rod |84 is ñXed by the set screw. |85'in the clevis |36 mounted upon the shaft H3 (see Figs. 4 and 5). The forward eX tension iß’iof the arm normally contacts with the shaft |23 through the actionof the spring |83 extending at |83 to the extension of the frame, see Fig. 2. ' ' - The upward extension |61‘of the arm ,carries the pawl contactmember |93, which (when the plates |8|, |82, |8211 contact with the adjustable arm |83) throws the pawlV |83 to the left by con 4 2,095,133V tact with the horizontal extension |9| upon said pawl (see also Fig. 1). As long as the cam plates |8i, |82, |8211. retain said contact member |90 against the horizontal CFI extension ISH on the pawl líâë the ratchet |31 will not be advanced by the pawl |36 upon recip rocation of the arm |65. During this period the reversing mechanism will not be operated. In operation therefore, as the main shafts lûl and 3| are driven the arm 24 will be continuously reciprocated, causing advancement of the jac quard chain 22-22, and a reciprocatory move ment of the thread guide H3 connected to the bar I6, resulting in the formation of a predeter mined pattern for each position of the pins 2| of the jacquard chain 22-22. With each of said reciprocations (due to the cooperation of the cam HB3 and follower |04 upon reciprocation of the arm I B5) the ratchets | iii and |37 will be advanced by the reciprocating pawls H6 and |36, causing an advance of the pattern chain |28, and the reversing cam |48. The reversing cam |48 will, at predetermined intervals, elevate the follower roller i5! (as shown in Fig. 4) upon the lobes |49, which through the linkage £62 and bell crank lever M5 will cause a shifting of the pawl 66 from the forward ratchet 4i! to the reverse ratchet 42 of Fig. 6. The interval between said reversals will be con 30 trolled and varied by the contact plates IBI, |32, ESM upon the pattern chain |28 (see Fig. 4) which will for predetermined intervals maintain the pawl |36 out of Contact with the ratchet |37. In this manner by relatively short jacquard chain 22-22 it is possible to obtain a very wide variety of designs, the variety of designs being capable of almost infinite variation by control of the reversal cams |48 and the positioning of the Contact plates |8|, |82, |82a on the reversal pat 40 tern chain |28. Moreover, the arrangement shown permits a very ready control and adjustment> of the jac with a forward extension 200, the forward end of which is provided with a pin |902 which is de signed to move the pawl |362 out of engagement with the teeth |372 during predetermined inter vals. What is claimed is: 1. In a fiat knitting machine for knitting Cur tains of the type having'a plurality of rows of thread guiding elements, transverse reciprocable bars carrying said elements, one for each row, contact plates on the ends of said bars to be actuated, an endless jacquard chain, the links of which are provided with a series of spaced pins to contact with said plates and cause actuation of said bars and elements, whereby a predeter mined pattern is formed, sprocket means carrying said jacquardl chain, ratchet means driving said sprocket means, pawl means carried by said ma chine engaging and advancing said ratchet means tol drive said jacquard chain, a reciprocating lever carrying said sprocket means and crank means reciprocating said lever to cause said pins to con tact with and actuate said bars at one end of the stroke and to cause said pawl means to advance said ratchet means at the other end of the stroke; the combination therewith of a reversing mecha nism -ior said jacquard chain including two re 10 15 20 in in versing ratchet devices, two reversing pawl means corresponding with said ratchet devices, a recip rocating carrier actuated during operation to re ciprocate said pawls and thereby advance said reversing ratchet devices, a cam driven by one of said reversing ratchet devices, a lever follower actuated by said cam, said ñrst mentioned ratchet means provided with double ratchet wheels ar ranged side by side, one being directly connected to said first mentioned sprocket means and the other being connected to said sprocket means by a reversing gearing train, said lever follower being connected to said ñrst mentioned pawl means to shift it from one ratchet wheel to the other ratchet wheel, said second reversing ratchet de quard chain, which may be accurately determined v vice driving a second sprocket, a reverse pattern 45 without undue diñ‘iculty to determine the pattern. The jacquard chain 22-22, the pattern chain |23 and cam |48 may be almost readily coordi nated to give a predetermined pattern. As shown in Fig. 4 the contact plates |8| and |82 are of different shape and form, but if desired the plates may all be of the same type, character and shape. II‘he plates I3! and |82a of Figs. 1 and 4 are adapted to keep the pawl |36 out of cooperation with the reversing ratchet |3'l for a considerable period of time, while the plate |52 is adapted to merely keep the pawl I3|ë out of cooperation with the ratchet |31 for two relatively short successive periods. The embodiment of Fig. 8 shows an alternative construction to Fig. 4 in which similarly func 60 tioning parts are indicated by the same numerals primed. According to this embodiment the plates ISI’ are caused to contact directly with the pawl |36’ instead of through an intermediate lever arrange ment, as shown in Fig. 4 and intermittently to hold the pawl |36' out of engagement with the ratchet wheel |31’. Fig. 9 shows still another modification similar to Fig. 4 in which similarly functioning parts are 70 indicated by the same numerals provided with a superior In Fig. 9 the pattern reversing chain | 282 carries a series of pins |8|2 which cooperate with the L-member |832 to actuate the arm |842 which is pivotally mounted at H32. The arm is provided chain carried by said second sprocket, a` plurality of contact elements carried by said reverse chain, said contact elements serving to move said first reversing pawl means out of engagement with said ñrst cam-actuating reversing ratchet device, to render said reversing mechanism inoperative at spaced intervals. 2. Ina flat bed knitting machine, movable yarn guides, pattern mechanism formed of a plurality of bar members, the length of said pattern mech anism representing substantially one-half of a symmetrical design in the finished fabric, a plu- l rality of pins carried by each of said bar mem bers to actuate said guides to control the throw or” the yarn, means to actuate the pattern mecha nism in one direction throughout its length to produce one-half of the design, means for re 60 versing the movement of the pattern mechanism throughout its length to complete the design, in cluding a reciprocating pawl driven by the ma chine, a ratchet driven by the pawl, a cam driven by the ratchet and a lever arrangement actuated by the cam, and means for periodically render ing said reversing mechanism inoperative, includ-> ing a device for disengaging said pawl from said ratchet. 3. In a flat bed knitting machine, movable yarn 70 guides, pattern mechanism formed of a plurality of bar members, the length of said pattern mech anism representing a portion less than the whole of a symmetrical design in the finished fabric, a plurality of pins carried by each of said bar mem 5 lnoname `:bers'to actuatesaid guides to control the throw _ Apostte-direction, one ratchetrbeing directly con- Y v»nected to the sprocket and the other ratchet be- Y nism in one direction to produce said portionof ' ing connected to the sprocket by an intermediate ‘ «of the yarn,'m`eans to actuateV the pattern mecha the'design, and means for reversingfthe move yreverse Vgearingi connection and >means to shift ment of the pattern mechanism- to complete the design, including a. reciprocating pawl driven by said pawl means from one sprocket to the other.k 8. In a flat knitting machine for knitting cur tains having a plurality of rows of thread guid the machine, a ratchet drivenby the pawl, a cam 4. In a ñat bed knitting machine, a thread ing elements, >transverse reciprocable bars car ryingl said elements, one for each. row, contact members’on the ends of said bars to be actuated, guiding element operable in conjunction with the an endless jacquard chain; the links of which are - driven by the ratchet and a lever arrangement actuated by the cam. 10 Y " ' ' needle bar ofthe machine to form a design on a .provided with a series of spaced pins to contact ’fabric beingï knitted, a mechanism for operating _ with said members and cause actuation of said< said! element in accordance with the design to be Abars. and elements, whereby a predetermined pattern isA formed, sprocket means carrying said 15 15 formed, means >to> repeatedly move said mecha nism in one direction during the formationvof a jacquard chain, ratchet means driving said part of said design, means toreverse the direction j » sprocket means,«pawl means‘rcarried by said ma lof movement of said mechanism to- thereby con trol the'formation of another. part of saiddesign, .20 ‘including a reciprocating pawl drivenby the ma' cliine, a ratchet driven by the pawl, a cam driven by the ratchet anda lever arrangement actuated by the cam, and control means for disengaging i said pawl including a pattern chain. A5.> In a fiat bed knitting machine, a thread guiding element operable in conjunction with the needle bar' of- the machine to form a design on a fabric‘being knittedvga jacquard mechanism in cluding an endless element movable in opposite 30 directions along its length to control the opera tion of saidthread-guiding element, and‘means operable at predetermined intervals to reverse the directionY ci’ movement of said endless element to thereby control they formation of different parts Vof 35 said design, said. last mentioned means including a single pawl, a forward drive ratchet for said element, a reverse drive ratchet, and a pawl shift 40 chine engagingV and advancing said ratchet means to drive said jacquard chain, a recipro cating lever carrying said sprocket means and 20 crank means reciprocating said lever to causesaid i pins to contactwith and actuate said bars at one end'of the stroke Vand to cause said pawl means to advance said Vratchet means at the other end -of the stroke; said ratchet means being con nected to drive said sprocket means forwardly and reversely, means actuated by said'machine to operate said pawl meansrto cause reversal of ' the ratchet means and additional means oper ated by the machine to render such last men 30 tioned means inoperative at predetermined inter vals; said additional means including a recipro cating pawl, a ratchet driven by said pawl and means Vperiodically to disengage said pawl from Y said ratchet. . 1 9. In a nat knitting machine for knitting cur tains having a plurality of rows of thread guiding ` ing mechanism to shift the pawl from one ratchet elements, transverse reciprocable bars carrying to the other. said elementsjone for each row, contact members . on the ends of said bars to be actuated, an end 40 ' ' 6. In a hat bedrknitting machine, thread-guid ing elements operable in conjunction with the less jacquard chain, the links of which are pro vided With a series of spaced Vpins to contact with fabric being knitted, a jacquard chain movable said members and cause actuation of said bars in opposite directions and including a series of and elements, whereby a predetermined pattern is formed, sprocket means carrying said jacquard 45 actuating> members for said thread-guiding ele ments arranged on said chain in conformity with Y chain, ratchet means driving said sprocket means, the design tobe produced, Vmeans to reverse the , pawl means carried by said machine engaging and advancing( said ratchet means to drive said . movement of said chain including a reciprocating pawl, a ratchet driven by said pawl, a cam driven jacquard chain, a reciprocating lever carrying 50 by said ratchet and a lever arrangement driven said sprocket means and crank means recipro 50 by said cam and a pattern device to periodically cating said lever to cause said pins to contact with and actuate said bars at one end of the disengage said pawl. Y ` 7.Y In a flat knitting machine for knitting cur stroke and to cause said pawl means to advance tains having a plurality of rows of thread guiding said ratchet means at the other end of the 55 elements, transverse reciprocable bars carrying stroke; said ratchet means being connected to said elements, one for each row, contact members Ydrive said sprocket means forwardly and reverse- i ly, means actuated by said machine to operate on the ends of said bars to be actuated, an end said pawl means to cause reversal of the ratchet less jacquard chain, the links of which are pro vided’with ‘a series of spaced pins to contact with means and additional means operated by the said members and cause actuation of Vsaid bars . machine to render such last mentioned means 60 needle bar of the machine to form a design on a and elements, whereby a predetermined pattern is formed, sprocket means carrying said jacquard chain, ratchet means driving said sprocket means, ‘ pawl means-carried by said machine engaging inoperative at predetermined intervals, said last mentioned means including a pattern chain and said previously mentioned means including a cam, a ratchet actuating said cam, a pawl actu 65 and advancing said ratchet means to drive said ating said ratchet and a connection from the 65 jacquard chain, a reciprocating lever carrying machine actuating said pawl substantially in said sprocket means and crankmeans recipro- Y synchronisvm with the movement of said recipro- Y cating said lever to cause said pins to contact cating lever, said pattern chain serving to disen-. with and actuate said bars at one end of the gage said last mentionedv pawl from said last 70 stroke and to cause said pawl means to advanceY mentioned ratchet‘at predetermined intervals. 10. In a ñat knitting machine for knitting said ratchet means at the other end of the stroke; said ratchet means being provided with two curtains having a plurality of rows of thread ratchet members one of which is adapted to drive guiding elements, transverse reciprocable bars the sprocket in one direction and the other of carrying said elements, one for each row, contact 75 which is adapted to drive the sprocket inthe op members on the ends of said bars to be actuated, an endless jacquard chain, the links of which are provided with a series of spaced pins to contact with said members and cause actuation of said bars and elements, whereby a predetermined pat tern is formed, >sprocket means carrying said Vjacquard chain, ratchet means driving said sprocket means, a single pawl carried by said machine engaging and advancing said ratchet means to drive said jacquard chain, a recípro cating lever carrying said sprocket means and crank means reciprocating said lever to cause said pins to contact with and actuate said bars at one end of the stroke and to cause said pawl means to advance said ratchet means at the other end of the stroke; said ratchet means in 15 cluding two ratchets positioned side by side, one connected to the sprocket means to drive the same directly and the other connected with the sprocket means to drive said sprocket reversely, and means to shift said pawl laterally from one 20 ratchet to the other, 11. In a flat knitting machine for knitting cur tains having a plurality of rows of thread guiding elements, transverse reciprocable bars carrying said elements, one for each row, contact mem 25 bers on the ends of said bars to be actuated, an endless jacquard chain, the links of which are provided with a series of spaced pins to contact with said members and cause actuation of said bars and elements, whereby a predetermined pat tern is formed, sprocket means carrying said jac quard chain, ratchet means driving said sprocket means, pavvl means carried by said machine en- » gaging and advancing said ratchet means to drive said jacquard chain, a reciprocating lever carrying said sprocket means and crank means reciprocating said lever to cause said pins to con tact with and actuate said bars at one end of the "10 stroke and to cause said pawl means to advance said ratchet means at the other end of the stroke; said ratchet means including two ratchets, one connected to the sprocket means to drive the same directly and the other connected with the sprocket means to drive said sprocket reversely, and means to shift said pavvl means from one sprocket to the other, said last mentioned means being actuated by a cam, a ratchet actuating said cam, a pawl actuating said ratchet and a connec- 12'0 tion from the machine operated in phase with said crank means to actuate said pawl. 12. The construction set forth in claim 11 ln which the machine is provided with means to cause a disengagement of said last mentioned pavvl from said last mentioned ratchet during predetermined periods of operation. ABRAHAM HOLTZ.