US980086A - Pattern-drum-actuated driving mechanism. - Google Patents

Description

M. I. FIELD, G. D. LANNING, E. F. HATHAWAY & P. O. BLANGHARD. PATTERN DRUM AOTUATED DRIVING MECHANISM.

APPLICATION FILED FEB.6,1903.

Patented Dec.27,1910.

5 SHEETS-SHEET 1 98,8&

' M. F. FIELD, C5D. LANNING, E. P. HATHAWAY 6; F. G. BLANGHARD.

PATTERN DRUM AOTUATED DRIVING MECHANISM.

APPLICATION TILED FEB. 6,1303. 980,086, Patented De0.27,1910.

5 SHEETS-SHBET 2.

WITNESSES: INVE fi wa i. fimZ A TTOR IZEYji MILLARD F. FIELD, or

I UNITED STATES PATENT QFFIGE. i

WAY, OF BOSTQN, MASSACHUSETTS, WAYNE, INDIANA, ASSIGNOR-S TO \VINTHROP, CHARLES D. LANNING- AND EDGAR I. HATHA' AND FREDERICK C. BLANCHARD, OF FOR'I AMERICAN WARP-DRAWING MACHINE COM- PANY, 015 BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

PATTERN-DRUM-ACTUATED DRIVING MECHANISM.

Specification of Letters Patent.

Patented Dec..2'7, 1910.

Application filed February 6, 1903. Serial No. 142,250.

To all whom it may concern:

Be it known that we, MrLLAno F. FIELD,

GAR F. HATHAWAY, of Boston, all in' the county of Suffolk and' State of Massachusetts, and FREDERICK C. BLANCHARD, formerly of said Boston, but now of Fort 'Wayne, in the county of Allen and State of Indiana, have invented certain Improvements' in Pattern -Drum-AcL-uated Driving Mechanism, of 'wliich the following is a specification.

This invention relates to improvements in the mechanism by which the difierent parts of machines which perform successive operations are put into motion intermittently and continued for definite intervals during each cycle of operation of the machine.

The improvements-consist chiefly in a pattern drum or pattern chain which at specified times operates clutch mechanism that imparts motion to the respective devices in the machine which are to perform definite stood from the description hereinafter contained in connection with the accompanying drawings, wherein the invention is illustrated as applied to a warp drawing machine, in which there are devices to separate and feed the eyes of four loom harnesses, into which warp threads are to be drawn, also a reed-feeding and dent-opening device, and warp-feeding and separating mechanism, each of which is to be operated intermittently and independently of the others and a portion of them differentially to the others, during the process of drawing in warps.

In the drawings: Figure 1 is a plan view of a warp-drawing machine with. the ends and upper portion of the machine and other parts removed, to show clearly the improved figure. Fig. 6 is a sectional elevation on line 66, Fig. 3 viewed from the lower end of that figure. F 7 and 8 are details showmg the internal construction of the shaft in the clutch mechanism. Fig. 9 is a lefthand elevation of one form of warp drawing machine to which our invention may be applied. Fig. 10 is a front elevation of a harness with the harness feed-worm and its shaft in place, these parts being shown applied to the same warp drawing machine illustrated in F ig. 9, the middle portions of the machine and the harness being broken away. Fig. 11 is a front eleva- Fig. 9, showin the upper part of the-harness, the warp rame supports and the warpfeed screw, but having the middle portions of the machine and numerous parts thereon removed.

Referring to the drawings and particularly to Figs. 9, 10 and 11, We have there shown a well-known type of warp drawing machine, to which, for purposes of illustration, our invention may be applied, although it isto be understood that it may be usefully adapted to other machines, and to other types of machines for drawing or otherwise operating upon warp threads. In the illustrated type of machine bed B sustained on legs B. To support the reed, harness and warp in substantially parallel relation lengthwise the machine, there are secured to the bed the uprights C, C, connected by the overhead cross-bar C. For the support of the harness, the cross-bar is provided with a slot C, in which are adjustably secured the two studs 0, provided each with an anti-friction roll 0 for the frame of each harness 0 the latter in the present machine being four in numbers Each harness is hung upon a bar 0 by means of the rods 0 and the bar rests upon a pair of the rollers 0,.thus permitting the harness to be easily moved and adjusted difierentially with relation to the other elements, lengthwise the machine. The reed R- is carried in an adjustable frame R (shown on dotted lines in Fig. 9), the latter being secured to a longitudinal rod B resting upon anti-friction rolls R journaled in straps Rt depending from the cross-bar whereby the reed also there is provided a,

tion of the warp drawing machine shown in' may beadjustably and differentially fed within the required limits lengthwisethe machine. The warp threads W passing up H i longitudinally by a slight increment, if the from the warp beam V are carried in suhstantially parallel relation through the warp clamp Kw over theseparator shaft and thence backward to the frictional clamp :0 The two clainps 20 and w? are carried be tween the end frame members D, which latter hang suspended from the rods-D resting upon the anti-friction rolls D journa'led in the uprights (land 0. This permits :an independent and differential adjustment of the warp and the warp frame lengthwise of the machine by any suitable means, either manually or automatically. Automatic adjustment in the presentmachine is effected by a step-by-step movement imparted to the a rack bar '10, the latter secured to the warp frame D and engaging with a worm w of low pitch jour-naled in the frame of the machine. The worm is given intermittently a slight movement through suitable ratchet and pawl mechanism, which latter is indicated in Fig. 9, but which it is unnecessary to describe in detail, the same, however, being driven primarily from the main driving shaft M of the machine.

-'During the drawing operation the needle I) (Fig. 2) mounted upon the carriage E, the latter supported for sliding movement upon the bed B, is caused to traverse the warp threads and draw successive threads through selected harness eyes and between selected reed splits. The needle is guided in the guide 0 carried by the standard d mountupon the threads.-

ed on the carriage E, suitable devicesbeing provided for causing a properly timed and rmiprocatory movement of the needle, such devices being driven from the splined driving shaft M on the carriage, which latter is advanced simultaneously by means of the rotating lead screw M. Upon the carriage E, and movable with'the latter, there are also supported in journals a plurality of operating rods orshafts (six in number in the illustrated machine). These rods extend lengthwise the machine and act to select and feed according to predetermined arrangement, the warp threads, reed dents and harness eyes with reference to the path of the drawing-in needle, or such other device or devices as may be employed for operating The thread separating rod 2' (the outer oneof the, series) carries at the needle end of the carriage suitable thread separating mechanism, herein consisting of the thread separating and selecting screw 10, which, under each full rotation of opener, herein consisting of the rotary spiral I needle.

opener 7*, which, also under a full rotation of the shaft, spreads and opens the reed splits, this serving also to adjust the reed selected reed dent is not in direct alinement with the needle path. The remaining and intervening'shafts i, 2' 2' and 6 pass to their respective separating and feeding devices forthe several harnesses, which latter in the machine ilfustrated are supposed to be four in number, and arranged in sets of two each. In the illustrated machine the particular type of harness-eye separating and feeding device employed for each harness consists of a harness-eye separating worm h with its cooperating wire helix o engaging the harness strands and of the general construction shown in the prior patent to Field No. 755,861, although other suitable devices may be employed for this purpose. For each semi-revolution of a harness separator shaft an eye of its respective harness is presented within the path of the drawing needle. An-

other semi-revolution places the harness eye out of and beyond the path of the drawing Referring now more particularly to the means for controlling the succession or order of operation of the various feeding and separating devices,"P is the pattern drum, provided with a number of series ofheles p arranged around its periphery with each series in the same vertical plane or a chain may be used in place of the drum. In one or more of these holes in each series are se cured projecting pins p, their frequency of other short shafts s which have bear- 4 ings upon the standards A, A,- as shown in Figs. 6 and 7, and which shafts s constitute another part of the clutch mechanism. The sleeves s are slotted and pins 8" secured in the plunger shafts 8 near their in ner ends project through these slots, and

sufiicientlybeyond to engage slots 8* in collars 5' around the sleeves s,=which collars are made fast to the frame. Upon the sleeves 8 immediately adjoining the collars s are four loose pinions s and two smaller pinions t. all of which are held in position by nuts 8 The hubs of these pinions are also slotted to receive the pins 8'. The se-.

' notch or hole in the end of the shafts i.-

forward within its sleeve 8 of a ries of pinions ous train from a large gear 79 beneath the two pinions at the top, as illustrated in Fig. 3, or at the left in Fig. 5. The gear 72* is driven by intermediate connections from the cross shaft p which is geared to the driving shaft M. Upon the ends of the shafts s opposite their sleeve ends, there is secured a hub socket s to receive the ends of the shafts 2', z", '2'", i 2'", '6 or such other operating'parts as are employed in the machine, and in order to make these shafts secure when inserted in the sockets of the hubs s and easily removable therefrom when desired, a hooked latch s is pivoted in a slot in each hub s and the hooked ends of these latches project down into the socket and engage a The latch is held down in engagement with the shaft by a spring 8 which presses against a projecting end of the latch. By compressing the spring the latch can be easily disengaged from the shafts. I It will be understood, therefore, that after the machine is started whenever the pinions s, t are set in motion and one of the pins 79 of'the pattern drum P comes into contact with a lever 1, it will be pushed. forward, and striking the end of a plunger shaft 8 will push that shaft 8 and thus slide the pin 8 along the slot in a sleeve s" -out of the slot in a collar 5-" and into the slot in the hub of a pinion s or If. \Vhen in this position the pin 8 acts as a clutch to connect that pinion and a shaft together, and causes that shaft and one of the shafts. 2', 2", &c., and the parts connected therewith to rotate and. perform the required operation. for instance, that hereinafter described in a warp-drznving machine. As soon as that pin ,7)? passes out of contact with the lever 1, a spring 8, held between the end of a sleeve 8 and a nut on the end of a plunger shaft .9, pulls the pin .9 of that shaft out of the slot in the hub its pinion ort and its shaft 3 steps.

In the use of theseimprovements in connection with a '\\-'arp-drawing machine as illustrated in the drawings, where 'il18SGV- e'ral shafts are intermittently rotated. and some of them at longer intervening periods than others, it is found desirable to rotate the pinions s, t intermittently, and this is accomplished by means of an intermittent wtuiel 7)", sometimes called a star wheel, on the same shaft with the gear 79*. This intermittent wheel 7f is eonstructedin the usual manner, in this case with six radial slots in its face, and. between the outer er;- tremiti'es of each two slots the projecting part of the wheel is formed with concave depressions which are arcs of a circle .of

s, t" are geared in a cont-inu- 1 much smaller diameter than thewheel itself.

The wheel is driven by a pin 71- on a wheel 7) in gear with the crossshaft 2. As the wheel y;-rotates the pin 7) moves up into and then out of one of the radial slots in the wheel p and acting against the side of the slot turns the wheel 3) onerevolntion. and in the construction shown, the gear 7) and the pinions a. t are so proportioned that the pinions i make one revoluiion. and the pinions s onehalf a revolution, for each ii'itermittent n'iovement of the wheel 1"? During the time when the pin is not in engagement with the wheel 72 a segmental projection on the wheel 7) engages the concave depressions between the extremities of the slots in the wheel 7) and prevents it from turning.

As illustrated in the drawings, the pattern roll P is rotated intermittently bv means of another star or intermittent wheel 79 below the wheel and which is caused to rotate bvthe engagement therewith of the pin The intermittent movement of the wheel 71 is communicated through a gear p on the countenshaft 19 to a gear 72 and thence to gear 2 on the shaft of the pattern roll P see lugs. 8 and This roll, however, may be rotated continuously and operate equally well. It will therefore be seen that by pegging out the pattern roll or drum 1 (or chain or chains. if the latter are used) in a Sllltlhli? way, any desired pattern may be obtained and there may be imparted to the several operating shafts i etc, and therefore where a "Warp drawing machine is concerned. to the separating and-positioning devices for the warp threads, harnesses and reed, any desiredorler or succession of action, and not only mav the threads be drawn through the r"; motivharness eyes and reed dents in accm'dance with an desired prearrangen'ient, hut such arrangement may he altered or modified by altering or modifying the pegging ofthe pattern device from time to time, as ma be required.

It has heretofore been usual in machines of this class to draw regularly one thread through each harness eye and two threads through each reed-dent, but itwill be seen that the present invention makes it possible to draw two or more threads to a harness eye or to a reed-dent. This is accomplished in the illustrated form of the invention by arranging the pattern so as to interrupt. the action of the operating and separating shaft for the required harness or the reed, as the case may be, iiile continuing the action of the warp separating shaft. thus dwelling the positioning movement of the harness eye or reed relatively to the needle. On the other hand. at. any des'red intervals a harness eye or reed dent may he. droppedor skipped by in'oviding for the action of the requisite operating shaftwhile cutting out the action h'of a of the warp separating shaft, so that, the warp thread-positioning screw being dwelled, the needle in its movement fails to draw a thread, This irregular drawing action may be necessary for many. differentpurposes." For example, on corded work it may be required to dwell the harness feed and bed fed, while continuing the warp fee for a given number of picks to draw a number of threads through the same eye and the same dent. Or it may be required where a harness is used for weaving warps, the latter having a less number of threads per inch than there are harness eyes, so that it is necessary to skip cor-' tain harness eyes. For this purpose the reed positioning shaft audvwarp thread position- ,ing shaft are dwelled. while the harness feed 'shaft is actuated to pass" the harness eyes on relatively to-the needle without drawing threads therethrough'. Or it may be re; quired to draw a number of threads in one reed dent varying .from the number of threads in some other dent. In all these cases the result which demands the cessation of. feeding action as to any one set of elements for one or more needle picks. either regularly or irregularly, may be readily obtained by the prearranged pattern control. Since this mechanism provides means for withholding from the line of drawing action the next eye to be operated upon in any given harness during a plurality of needle picks, and since this condition would usually be required in a machine employing more than twoharnesses, this invention affords for the first time a practical mechanism for the control or utilization of more than two harnesses in a warp drawing machine in conjunction with .a unitary thread drawing mechanism. It is also to be observed that our invention, in its broad aspects, is applicable to machines for acting or operating upon warp threads other than those which are specifically and customarily termed warpdrawing machines such, for. example, as warp-twisting, tying or cementing machines, and that in referring to the warp-drawing operation We do not necessarily restrict the operation to machines where the warp threads are drawn through the dents of a reed'and the eyes of one or more harnesses, but include within that term also the warp-' drawing operation which results in other machines as of the types named, when the threads are successively drawn or placed for any purpose whatsoever, as for the subsequent action of a knotter or twisting or cementing devices. In referring also to the drawing-in needle, it is to be understood that we include within that term any equivalent thread-placing device.

While we have shown one-embodiment of our invention applied to a warp drawing machine, it is to be understood that the same is not limited. to the type of mechanism shown, nor to the details or construction of the parts disclosed, nor, in fact, in its-application to a machine employed for this particular purpose.

o claim:

1. Driving mechanism for machines provided with a plurality of operating parts to be intermittently actuated, which consists of a pattern member, a series of plungers to be longitudinally actuated by -the pattern, clutch members upon the ends of the plun gers and intermittently rotated counterclutch members upon the connections 'with the said operating parts.

2. Driving mechanism for machines having operating devices to be intermittently actuated,'which consists of an intermittently rotated clutch member normally free to turn upon the shaft connection of each of such operating devices, a counter clutch member capable of longitudinal movement independent of the other member, a spring to disen--= gage the clutch members, and a pattern member to cause them to engage, as predeter mined.

3. Driving mechanism for machines having operating devices to be intermittent-1y actuated, which consists of a clutch member normally free to rotate uponthe shaft connection of such operating devices, a slotted sleeve at the end of such shaft, aplunger within the sleeve, provided with a pm which engages the slot and serves as the other clutch member, a pattern chain or drum to force the clutch members together and means to separate them.

4:. Driving mechanism for machines having operating devices to be intermittently actuated, which consists of a pattern member, a clutch member normally free to rotate upon the shaft connection of'each of suchoperating devices, counter clutch members longitudinally actuated by the pattern independently of the other clutch members, and mechanism to give a portion of said operating devices a movement differential to that of the other operating devices.

5. The combination. with the shafts which operate the reed dent opener, the heddleeye separating devices and the warp thread selecting and separating screw, in a warpdrawing machine, of clutch mechanism which is normally out of engagement and an adjustable pattern member with means to intermittently put such of the clutches.

into engagement to turn said shafts as predetermined bythe pattern.

6. In a warp-drawing machine, the 'combination of devices to independently control and. feed the reed-dents, the harness-eyes and the warp-threads and successively locate one of each for the drawingrin operation,

and adjustable operating mechanism to operate said devices as predetermined by its adjustment.

7. In a warp-drawing machine, the combination of devices to independently control and feed the reed-dents, the harness-eyes and warp-threads, main driving mechanism, and adjustable means adapted to connect the driving mechanism with the respective feeding devices as predetermined by the adjustment of such means.

8. In a warp-drawing machine, the combination of devices to separately control and feed the reed-dents, the harness-eyes and the warp threads, main driving mechanism, and interconnecting means between .,-the driving mechanism and said feeding devices, which means are'adapted to intermittently operate the respective feeding devices alternately with the drawing-in operation.

9. In a warp-drawing machine employing a plurality of harnesses supported in substantially parallel relation, the combination with means to separate and position the successive heddle eyes of each harness, thread-separating and drawing mechanism, and main driving means for the thread drawing mechanism and the heddle eye positioning devices, said heddle eye positioning means providing for the withholding of. the next eye to be operated upon in a given harness during a plurality'of operations of the drawing-in'mechanism upon the eyes-of another harness or harnesses.

10. In a warp drawing machine employing a plurality of harnesses supported in substantially parallel relation, the combination with means to separate and-position the successive heddle eyes of each harness, thread drawing means, main driving means for the thread drawing means and the heddle eye positioning devices, and means for causing a relative, traversing feeding movement between .the thread-drawing means and the supporting means for the harness, said heddle eye positioning means providing for the withholding of thenext eye to be operated upon in agiven harness during a, plurality of operations of the drawing-in means upon the eyes of another harness or harnesses.

11. In a warp drawing machine employing a plurality of harness and a warp supported in substantially parallel relation, the combination with means to separate and position the successive heddle eyes of each harness, means to select and separate the warp threads, thread drawing means, main driving means for the thread drawing means, thread selecting and separating means and the heddl'e'eye positioning devices, and means for causing a relative traversing feeding movement between the thread drawing means. and the supporting means for the harness, said heddle eye positioning means providing for the withhold ing of the next eye to be operated upon in a given harness during a plurality of operations of the drawing-4n means upon the eyes of another harness or harnesses.

12. In a warp drawing machine employing a plurality of harnesses, the combina 'ion with means independently to separate andposition the successive heddle eyes of each harness, thread drawing means, main driving mechanism, means to connect the ele ments of the harness eye positioning devices independently but cooperatively with the main driving mechanism, and adjustable means for governing variably by a predetermined adjustmentthe order of action of the harness eye separating and positioning devices.

13. In a warp drawing machine employing a plurality of harnesses, the combination with devices to separate and position the successive heddle eyes of each harness,

thread drawing means, main driving mechanism, connecting clutch devices between the main driving mechanism and the -respective harness eye positioning devices, and a means for intermittently actuating said clutch devices.

14. In a warp drawing machine employing aplurality of harnesses, the combination with devices to separate and osition the successive heddle eyes of each arness, thread drawing means, main driv ng mechanism, connecting clutch devices-between the main driving mechanism and the respective harness eye positioning devices, and clutchactuating devices to g'overnthe action of said clutches. 15. In a warp drawing machine employing a plurality of harnesses, the combination with devices to separate and position the successive heddle eyes of each harness, thread drawing means, main drivin mechanism, connecting clutch devices fietween the main driving mechanism and the respective harness eye positioning devices, and automatically driven clutch-actuating de-' vices. 4

16. In a warp drawing machine em loying a plurality of harnesses, the com ination with devices to separate and position the successive heddle eyes of each harness, thread drawing means, main driving mechanism, connecting clutch devices hetweenthe main driving mechanism and the respective harness eye positioning devices, and means to control through said clutch devices the 1 order of succession in the action of said harness eye separating and positioning devices.

17. In a warp drawingmachine employing a plurality of. harnesses supported in substantially parallel relation, the combination with a drawing-in device, means for supporting the warp in substantial parallel relation with the harnesses, means for causing the drawing-in device to travel across the harnesses and warp, means to separate and .position the successive heddle eye of eachharness with reference to the drawingin device, and means to separate and position successive warp threads, said heddle eye positioning means providing for the withholding of the next eye to be operated upon in a given harness during a plurality of operations of the drawing-in device upon the eyes of another harness or harnesses.

18. In a warp drawing machine the combination with a drawing-in device, means for independently and adjustably supporting a plurality of harnesses, a warp and a reed, main driving mechanism for causing the travel of said drawing-in device across the reed, harnesses and warp, independent means for separating and positioning respectively successive heddle eyes of each harness, successive warp threads and successive reed-dents, and means for intermittently actuating'said several separating and positioning means from the main driving mechanism in accordance with a predetermined pattern arrangement.

19. A warp drawing machine having-a drawing-in device, a loom-reed, loom heddles and a warp support, and means foi differentially adjusting three of said elementsin relation to a movement of a fourth and also in relation to each other, said means withholding the next successiv'e reed-dent, harness eye or warp thread from the line. of drawing-in actionfor a plurality of drawing-in movements of the drawing-in device.

20. A drawing-in machine having a drawing-in device, and means for supporting a reed, harness and warp, and for differentially adjusting the same relatively to the line of drawing-in action,said means withholding from the action of the drawing-in device for a plurality of successive drawingin movements the next successive reed-dent, harness eye or warp thread.

21. A warp drawing machine having a drawing-in device, means for supporting a loom harness, and means for positioning successive harness eyes with reference to the line of drawing-in action, said means providing for the skipping of a predetermined harness eye or eyes inth'e drawing-in action.

22. A warp drawing machine having a drawing-in device, means for supporting a loom harness, means for positioning the successive eyes thereof with reference to the line of drawing-in action and means for governing said positioning means to cause a plurality of threads to be drawn through a given harness eye by successive drawing-in movements of the drawing-in device.

23. A warp drawing machine having a drawing-in device, means for supporting a loom harness, means for supportinga warp,.

cessive i'ecd dents with reference to the drawing-in act-ion, said means providing for the skipping of a pre'determined'reed dent.- or dents'in the drawing action.

25. A war) drawing machine having a drawing-in cevice, means for supporting a loom reed, mea-ns for positioning successive reed dents with reference to the line of draws ing action, and means governing said positioning means to draw a varying number of threads through successive reed dents.

26. A warp drawing machine having a drawing-in device, means for supporting a series of warp threads, and means to position successive threads with reference to the line of drawing-inaction, said means providing for withholding from the action of the drawing-in device at a predetermined time the next undrawn thread.

27. A warp drawing machine having'a drawing-in device, a plurality of sets of elements, the elements of each set being arranged in succession, means for separating and positioning the successive elements of each set with reference to the line of drawing-in action, the said positioning means for one set of elements acting independentlv the positioning means for the other "set or sets of elements, and means for adjustably predetermining the order of action of said positioning means. v

28.'A warp drawing machine having a drawing-in device, a plurality of sets of elements, the elements of each set being arranged in succession, and means for separating and positioning'the successive elements of each set with reference to the line of drawing-in action, said means providing for withholding one of the elements in any given set from the line of the drawing-in action for a plurality of successive drawingin movements of the drawing-in device.

29. A warp drawing machine having a drawing-in device, a plurality of devices for selecting and positioning elements with reference to the line of the drawing-in action,

and adjustable pattern means for selecting and causing the actuation intermittently 0.. one or more of said devices.

30. A warp drawing machine having a drawing needlepa plurality of devices for selecting and positioning elements with reference to the line of needle action, and means for selecting and causing the actuation intermittently of said devices in accordance with a predetermined but variable order of action.

31. A warp drawing machine having warp, a reed and harnesses, each independ ,ently movable for feeding ad ustment, and

means to adjustably govern the order of selection'ofthe harness eyes for successive thread drawings.

34:. A machine for operating upon war )5 I having a plurality of operating parts to e intermittentlyoperated, means for operating successively .upon the indiv dual members of the series of Warp threads, and means for connecting the operating mechanism of the machine with the respective parts in accordance with predetermined adjustment.

A machine for acting upon warp threads having means for operating successively upon the individual members of the series of warp threads,'a plurality of sets of elements, the elements ofeach set beingarranged in succession, and means for positioning the elements of each set in succession with referenceto the' line of action thereof, the saidpositioning means for one setof elements acting independently of the positioning means for the other set or sets'of elements, said means withholding ifrom action for a plurality ofcycles of operation the positioning and separating means for any given set of elements.

36. In a warp drawing machine having means to support more than two harnesses,

the combination with drawing'in means, and means for bringing the successive eyes of each of the respective harnesses severallyi'nto active position with reference to the drawing-in means.

37. In a warp drawing machine having means for supporting more than two 'har nesses, the combination with intermittently acting drawing means, of means for positioning the eyes of the res ective harnesses with reference to the line 0 drawing action, and means overning said positioning means for withho ding a given harness eye for a plurality ofdra-wing actions.

88. In a war drawing machine, the combination withdi'awing-in means, a plurality of independently. supported harnesses, means for separating and positioning the eyes ofthe respective harnesses with reference to the line of drawing action, and means governing said positioning means for vary ng the order of succession in the. drawing action with reference to the harness eyes.

39. In av warp drawing machine, the combination with drawing-in means, of plurality of elements, positioning means to position the same with reference to the line of drawing action, means for dwelling the action of the positioning means, and means to control the period of dwell.

40. A warp treating machine having a main driving mechanism, means for acting upon successi e warp threads, a plurality of sets of elements, means for positioning the same with reference to the thread acting means, said positioning'means being intcrmittently driven from the main driving mechanism, and means to differentially time the intermittent. driving movement thereof.

ii. A warp drawing machine having means for supporting'a warp, a reed and a plurality of harnesses, drawing-inmeans, means for selecting and positioning successive warp threads, harness eyes and reed-dents with reference to the line of drawing-in 'action, and means for suspending the action of any one of said positioning means while continuing the action of the drawing-in means.

42. A machine for operating upon warp threads, comprising means for acting successively upon the individual members of the series of warp threads, and means for positioning the threads relatively to the acting means according to a prearranged -and variable adjustment.

43. A machine for operating upon warp threads having means for acting successively upon the individual members of the series of warp threads, a plurality of elements adapted to be cooperatively positioned, and means for positioning the same by a prearranged and variable adjustment.

44. A warp drawing machine having thread-separating and placing means, harness eye positioning means to position a harness eye to receive a single thread, and means providing automatically for the dwelling of. a given harness eye to permit the placing of a plurality of threads therethrough while maintaining uniform the rate of action of said thread-separating means.

45. A warp-drawing machine having thread-separating and placing means and 2 said positioning means automatically to position a given eye to receive a plurality of threads while continuing the same rate of 1 action of the thread-separating means.

46. A warp-drawing machine having thread separating means, thread placing means, harness eye positionin means, and means automatically to' dwel the harness eye positioning means while continuing thenormal operation of the separating means to cause the placing of a plurality of threads through a given harness eye.

47. In a warp drawing machine the complacing bination with thread-placing means. means for supporting awarp, reed. and harness, and pattern means to control the'pdttern of the drawn-in warp. I

48. A drawing-in machine having thread means, harness eye-positioning means to cause each harness eye to receive a single thread, and means to time the action of theharness-eye positioning means when desired to cause each harness eye to receive a plurality of threads predetermined in number.

4-9. A drawing-in machine having threadplacing means, harness supporting means, harness eye positioning means, members for actuating said harness eye positioning means, said members extending cross-wise the harnesses. and pattern means controlling the movements of said members located at the side of the harnesses.

50. In a drawing-in machine the combina tion with devices for supporting 'and progressively separating and drawing-in the warp threads, of means to support more than two harnesses; mutually independent harness-eye selecting mechanisms for each harness; and connecting, controlling mechanism for said harness eye selecting mechanisms, interposed between the latter and the mai driving mechanism, said connecting an controlling mechanism being adapted to perm'itready setting whereby the continuous, successive harness-eye selecting operation may be carried on in the designed whole numberof harnesses or in a predetermined smaller number thereof.

51. In a drawing-in machine the combination with devices for supporting and pro gressively separating and drawing-in the warp threads, of holding means sepalt lpily to support each of a plurality of harnesses in a parallel relation, devices adapted independently to select the successive heddle eyes of each harness; means to cause a relative traversing feed crosswise the warp between'the thread-selecting and drawing-in mechanism as one element, and the warp and its common support as another element;

.to support each of a plurality of harnesses in a parallel relation, devices adapted independently to select the successive heddle eyes of each harness, the heddle eye selecting devices of each harness being in constant engagement with the heddles thereof, both when active and inactive; means to cause a relative traversing feed crosswise the warp between the thread-selecting and drawing-in mechanism as one element, and the warp and its common support as another element; connecting and controlling mechanism interposed between the main driving mechanism and the-associated group of harness-eye selecting devices and adapted to actuate or dwell the respective harnesseye selecting mechanisms in predetermined sequence; the harnesses being independently adjustable, whereby each harness may be given an independent longitudinal differential feeding movement responsively to the predetermined sequence of operation of the respective harness-eye selecting mechanisms. MILLARD F. FIELD.

CHARLES D. LANNING.

EDGAR F. HATI-IAVAY.

FREDERICK C. BLANCHARD.

\Vitnesses:

T. K. LANNING,

AGNES B. HUDSON,

A. F. CHAPIN,

\V. M. S ar.

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