US1782162A - Machine for knotting warps - Google Patents

Description

Nov. 1s, 1930.

U. BISCHOF MACHINE FOR KNOTTING WARPS Filed May 29, 1929 5 Sheets-Sheet l Nav. 18, 1930. u. BiscHoF 1,782,162A

MACHINE FOR KNOTTING WARPS Filed May 29, 1929 5 sheets-sheet a La ZQ- Z F"I /a /Nvev a2 NOV. 18) 1,930.7 U, B|5CH0F 1,782,162

I MACHINE FOR KNOTTING wAR'Ps Filed May 29, 1929 5 Sheets-Sheet 3 /Nvew Tall Www/L Nov. 18, 1930. u. BiscHo'F MACHINE FOR KNOTTING wARP Filed May 29, 1929 5 Sheets-Sheet 4 v- By Nov. 18, 1930. U. BiscHoF. l 1,782,162

MACHINE Foa KNOVTTING wARPs Filed May 29. 1929 A5 sheets-shed 5 a9 19sv e v Vas Patented Nov. 18, 1930 A 'f 1,782,162g

l ULnicn Biscnon, or AARA, SWITZERLAND 'MACHINE iron KNOT'TING vviinrs miniemen/nea May 29, 192e, sei-iai, No. 367,024, @11min switzerland 'o'ceober 4, 1928.

Machines 'are already known for tying the ends of warp threads', wherein the warp i threads of the oldwv'arp and of the new Warp are horizontallyv clamped in. the machine.

5 lhese machines however have the disadvan tage .that the device for clamping rthe warp and th'e knottingldevice are arranged wholly or partly above the warp, and Athereby reiiy der impossible 'the .free .and unhamperedacy 1e cessibili'tyfottheplane of the warp foriquick clamping of `the .warp and av continuous, con# stant and complete supervision for control-r ling `purposes during 'the tying.

ln other known machines the .old andnew warns :are clamped in a vertical position, but these nla'chines havethe disadvantage that the kn'otting device is arranged above the ywarp and'engages With ythe latter for ty-r ingpurposes on both sides, thereby prevent'- ing satisfactory oversight 'of the warp during the tying, `so that"the"tying of the 'correct associatedthreads cannot possibly be controlledat the right time. Faults that are discovered' too late may however occasion great losses of time. Moreover the clamping of the old and 'new warps isin such machines very complicated, since kthe grippingbars supported by yrotatably'arranged looked carrying arms have to be unlocked beior'e the u clamping of the avaro, rocked downwards,

and brtni'ght backihto the upright position after' the clal'npi ng and 'locked again. This arrangeinentis lalso known in `the caseot` donblemachines coupled together.

vWith :this arrangement, however, an nninterrup'ted automatic transport of the knotting device `and -a successive 'tyln'g'of the warp clamped in 'a Splurahty of coupled machines,

ting device must be transferred fromfone machine tothe otherby hand', and this involves a preliminary partial dismounting of the knotting l-apparatus, which v'has to be re-assembled aiter beingtransferred, thereby occasioning a goodV de'al rvot Work and loss; of time.

l/iith .the machine ii'orining the, subjectinatter'of the Ypresentinvention, the said dis advantage ot the machines hitherto known areobvi'ated owing to the thaty the deis lprecluded. lVith thes'e ymachines the knotr` vice for clamping the old'and .new warps and the device for tying the ends of the threads are Vso* arranged that readj-, accessibility,

which is necessary for the quick clampingof. rthe warp, 1s obtained 'owing to a free and unh'amperedwarp plane, whichrenders possible ya continuons, constant and complete oversight forcontrolli'ng purposes of thel ty-v ing of the warp and of the Warp threads va1- ready knotted, in sueh'a way that injone working operation an'dwithout interruption all the threads 'of wai-ps of any desired breadth cancbe'tied, the knotting device, after the vknotting'thereof has ybeen eiected, being capable of being transferred by an' ninterru-oted automatic transportingmeans rto a second Vmachine coupled tothe first, "for the .purpose of tying'warj threads clamped on rthe secondmachine, during Whichtime fresh Warps can be clamped `on the iirst inachine for tying purposes, therebyincreasing theontpntiof the machine. Y. f According to the present invention this machine is distinguished by the fact thatv the clamps that receivethei fresh Warp' are "carried by carrying members provided with running rollersarranged underneath the warp planes, and forni, together with the lat-ter, a travelling Warp carriage, that parts of these carryino .members extend -linde'rneath a. driving sha t arranged `in the longitudinal direction' between the clamps and having adrivingconnection with knotting device, 'that thisy shaft land `the knotting device are ar ranged inside the travelling Warp carriage, that `the driving ot. all the knotting 'iniplements is effected from below, and that.y the warp carriage travelling on rails,` is 'automatically displaceable vWithout hinderance in the longitudinal direction by a machine pro-V vidediwith a mounted warp, towards onev` or morelnachines coupled with the former, for .the tying of the previously prepared and j clamped Warns, the whole in suclia way that frality of machines coupled'togethcr.

Preferably also the runningv rails of the knotting carriage, as well as the two toothed racks, which are provided for the purpose of displacing the knotting device, with its carriage, relatively to the warp, and `for 1 the purpose of compensating one warp relatively toA theother by displacement of the warp carriage, are arranged inside the warp carriage, the transverse connection of the bows being Y preferably likewise constructed continuously underneath the running rails land racks, in

such away that the carriage, with the knot-- ting d evicc, can advance uninterruptedly an d autom ati `ally from one machine to the other .in the entire longitudinal direction for the purpose of successively. tying the warp clamped upon' each machine. Y Y

The rollers of the warp carriageare pref-v erably arranged directly on the bow there-A being in section on the line -min Fig. 27

Figure 4 is a front elevation of the warp carriage,

Figure 5 shows the knotting device, Vwith the driving shaft, in front elevation,-

Figure`6 shows a part of the'warp carriage. p Figure 7 is a front elevation of the keys, warp stop motion and the coupling and ratchet lever mechanism associated therewith. Y

Figure 8 is a plan of thekeys, warpy stop motion and the coupling and ratchet. lever mechanism associated therewith;

Figure` 9` is a side elevationof the threadremoving means. n Y

Figure 10 is a front elevation of the threadremoving means.`

Figure 11 is a'plan of the thread-removing means. Y Y

Figure 12 1sv a front elevation of the arrangement-of the needle and its operating members. v

Figure 13 shows the shears with the clamping needle in side elevation and with threads lying in the clamping needle.

vFigure 14 shows the shearsin an almostV L' ing needle device and Figure 18 is a front elevation thereof.

Figure 19 is a side elevation of the knetter with binding bill and rack.

Figure 20 is aA front elevation thereof.

Figure 21 is a front elevation of the bush with toothed wheeland the lower partof the binding bill also aV plan thereof and a side elevation and plan of the upper part ofthe binding bill.V

Figure 22 is a front and side elevation of the needle.

In Figures 1 andv 2, 1 denotes Ythe side frames of the machine, which are stayed by connecting rods 2, 3, 4 and 5. To the side frames are secured ruiming rails 6 and 7 upon which are mounted rollers 9 and 1t) rotatably'arranged on a knotting carriage 3 to facilitate the displacement thereof. r1`he driving shaft 11 is journalled in bearings 12 secured to the side frames andvcarries at one` end al driving pulley 13. Theshaft 11 carries a toothed wheel 14 5), which meshes with a second toothed wheel 15, of which the shaft 16, arranged on the knottingcarriage 8, carries the pulleys with the cam discs, not shown, designed for actuating the knotting implements. The driving shaft 11 has a groove'17 (Fig. 3), in which there engages a key 18 (Fig. 1) of a clutch19 (Fig. 5) arranged beside. the wheel 14. On the knot-ting carriage is arranged a shaft 2O (Figs. 1 and upon which is rockably mounted a twoarmed lever 21, one arm of which engages with the aws 22 in a groove 23 in the clutch 19, and the other arm of which is constructed in two parts. The part 24'is slidably and clampably `arranged on the other part of the lever 21 by means of a slot and a screw 25 1), the part 24V being brought into the lowest position for the purpose of pushing theV knotting carriage backwards under the previously mounted fresh warp of the first machine by hand, when the knotting carriage is to be brought into its lateral initial position. The part 24 is pivotally connected with a feeler 27 guided in a support 26. The double arin 2l also connected with a braking arm 28 (Fig. 1), therroller 29 of which is drawn against a cam disc 30 by a spring 31.

On one end of the shaft 20 is rotatably arrangeda toothed wheel 33 (Fig. 1 meshing with a rack 32 secured to the si e frames, while upon the opposite side of the shaft 2() is provided a toothed wheel 36 meshing with a rack secured to downwardly bent bows 34 (Figs. 1, 2 and Bearing upon these wheels there are mounted loose upon the shaft 2O ratchet levers 37 and 38, of which the pawls V39 and 40 each engage in a second set of teeth on the toothed wheels 33 and 36.

The rollers 41 and 42 of the ratchet levers 37 and 38 arepressed by springs 43 and 44 on the same cam, not shown, of the disc 45. Int-he support 26 (Figs. 1, 7 and 8) is journalled a .shaft 46, on one end of which is fix-l edly 'mounted a 'lever which is pivotally Y connectedby'` a'ten'sion rod 48 withther ratchet lever 38, while upon the other side of the shalit46 is seeu'fred "alever A:49.* Beside this lever is rockably mountedupon :the shaft 46 kla ylever-50, rwhich is likewise pivotarlly lconneeted byfa tension rod 51with thel ratchet lever v37. Keys-52 and 53 (Figs. 1,7 and8) are roclrably arranged iin'ia support 54 and constructed Awith projections '55,an-d 56, and Lone end of each oi `the lfl'evers49-and50 comes to lie under these projections.. The ` keys 52 and 53 bearjo'n the warp threads and assume during the tying of the threads Va variable position, in 'such awa-y that ythe projections ijand of lthe lrcys stand at times in front ot'theends'of the levers 49and 50, and thesev levers are therefore no longer obstructed in l 4 1 their freedom of niovement,and the ratchet mechanisms connected rwith them come intor operation, on the lone handfor the purpose of displacing the lnotting carriage relatively to the warp and on the other 4handfor the purpose of displacingtfhe vwarp carriage in order to equalizethe correctfposition of the twow'varps one above lth'e other. Under these circumstances the lreys 52l and '53 bearing upon the threads, owing to this displacement of the knottingcarriage',return to the initial position, and the'operativeness of the ratchet vmechanisms "and of the `'levers y49 and 50 is thereby n'also'interrupted again, and this is n constantly repeatedin` an alternating 'man ner.

kThe grips 57 and 58 (Figs, land 3) ,known inthe'1'nselves,-are carried'by'the downwardly bent'bows'34,the latter V:being connected with one another" a rod 59,'-and `forniingtogether withfrolle'rs 60 rotatablyarranged upon the pivot. 61"`s'ecu`r`ed lin the' bows, `a travelling warp carriage. i'The grip'57 is'movably arranged 'in a ln'ownfmanner, being carried by a shaft 62 Ajournalled yin the 'bows34 anda support 63 fixedlyanounted upon it, a crank .Y 64 (Figs. 3 vand 4)fbearing on each lside against a `stop oneach support63. Underf ne'aththe grip 58'is provided a rod 65' (Figs.

`1 and 3) `l4as a connecting member for the rbows 34. The gripy 66 (Figs, 1 to 3) bears upon the'two supports67, which are providcd with racks 68, and which'are displaceably supported in supports 69 'secured vto the side n frames 1 ofthe machinean'd are secured by screws 70. Inthe side :trames 1 isour'nalled a shaft`71 (Figs. land 2) ,uponwhich is tixedly mounted a hand lever 72, while a shaft 7,3 is immovably carried' bvlevers 74 mounted. fast on the3shatt`7'1.L lFurther levers 75 located` upon (the shaft 73I are two-armed levers and are arranged'slidably uponr the shaft 73, in such a way that downwardly directed arms otthese levers" engage over vthe shaft :71, whereby these levers "are guided. Th'eupper arms `of theflevers 75"carry the beam y76,L4 with the fresh lwarp'761. ,"On'fthe *s'ide'lframes 1 (Fi-gs. and'2) are secured supports 77 Lcarrying the beam 78 with the old warp `781, theharness' 79 provided with the fold warp 'being'suspended from holders 80. Upon a bar' 81 vsecured vto the supports 77 two `holder guides 82 are longitudinally displaceable,"in'which the holders 80 are so arranged as tobe adjustable in height by lmeans of la screw 83 in each case. Above a cylinder- 84,

"which is rotatably and removably arrangedA Vinthe supports 77, the old warp carried by Ithe harness'arnd gripped ina known manner r 1in the space 78`is guided `forward for tying.

, `tube holder 85 (Figs. 5, 9, 10`and 11) with pin 86 and cams 87 ,is inserted into the.

bore of av boss 88 (Figs. 1, 3 and 5), the cams 87' r'engaging ink a slot inv this boss=88,"and thereby giving the correct position to the tube holder .85. In the tube holder are rotatably arranged tubes 89, 90, 91 and 92, in the bores of which :so-called cords or vvlease bands 93 (Fig. 11")Y are drawn-through in a known manner, the warps lying cros'swise vabo've'the ',latter, andthe threadsy being taken away 1ndividually. fUpon lthe tubes aresecured le.

vers 94, 95, 96 and 97, and pins 98,929,100 and 101' rotatably arranged thereineng'age in a common disc 102' rotatably arranged upon the holder 85, and set longitudinal ribs 103 constructed on the tubes for oscillation during a rotation of the said disc. 4For vthe :rotating lot this disc 102 there engages in a slot'therein a pin 104 (Figs. 3 and 5) on a lever 106 arranged on the -knott-ing carriagev 8 and rotatable upon a pin 105', whilea roller :107 arranged'on the other `end of the lever y-tatably arranged on the knotting carriage 8 'upon alpin v116 engages with a prism 117 mountedloose upon a pin 118 in a slot inthe tappet 114, and carries at the other end a roller 119,'whichbears upon a disc 120 Xedly connected with the toothed wheel 109, so that yduring the rotationof this disc, owingto a cam groove, not shown, arranged thereon, a longitudinal displacement of the thread divider is elil'ected. A lever 122 (Figs. 3 and 5) rockablyparranged on the knotting carriage l 8 upon 'a pin `121,`isforkedat'one end, apin 123 providedon the tappet 114engagi1'1g in the slot betweenV the prongs of the fork. r he other end otthis lever 122 is provided with V`anol'ler `124, 'which bears on fa cam groove,

The disc k'108 is1..

.not shown, in thedisc Duringthe rotation of this disc the` thread divider is set in oscillation. On the knotting carriage 8 a rod 125, with a shear cutting plate 126 (Figs. s and 16), is vertically displaceable, the said rod being provided at the other end ,Witha4 tappet 127 mounted fast thereon and 'with a pin 128 and a pivoted tension rod 12,9. The latter is pivotally connected with a lever 131 rockably arranged upon a shaft 130 and with a pivotr132. The lever 131 hasaroller 133,V

. `which engages in a cam groove,not` shown, ina. dise 134, the knife plate 126 being moved ner, a tappet 137 beingniountedfast on the other end of their d and bein@` ivotall e P Y,

eonneetedby a pivot 138 with a tensionrod 139. Upon the shaft 130, which is xedly ar- "the rod 149, a thread grip.

ranged on the knotting carriage, is mounted a rockable `lever 14() provided with va roller 141, which engages in a cam groove, not

shown, in the disc 134, and, during one revolution of the latter, the lever 140, pivotally .connected with the tension rod V139 by the Vpivot 142, likewise moves the knife plate 136 up and down in'such a way that during the displacement of the two knife plates 126 and 136 the threads are cut off as if with shears.

A support 143 secured to theknot-ting carriage 8 carries a two-armed lever 145roekably mounted upon a pivot 144, one -arm of the said lever earryingalever 147, which is likewise rockably arrangedupon a pivot 146 (as shown in Figs. 3, 5, 17 and 18). i The lever 147 is provided .with atubular hook needle 148,`ivhieh is secured'in the lever 147, and in the bore of which a rod 149, provided with a positioning ring 150 and subjectto the pressure of a spring 151is longitudinally slidable. The hook needle `148 forms, `with The lever 147, 'with the roller 14,8, and the lever 145, .with the` roller 148", are connected with ons` anA other by a sjgiring'152, whereby these rollers are pulled. against `the cani grooves, not shown, in dises 153 and 170. A lever 155 rockablymountedl upon a pin`154 on the lever 147 (Figs. 3 and 17) engages-with a roller 156 in a cani groove not shown, in a` disc 153, and the hook needle 148, during one revolution 'of the disc 153, executes a vertical and oscillating movement, the rod 149 likewise executing a reciprocating movement in the tubular hook needle, for the purpose of seizing and clamping` the thread and supplyingit to the binding bill.

On the knotting carriage is rotatably ai ran-ged a binding bill 157 (Figs. 3, 19, 20 and 21), which is mounted fast upon a bush 1591 provided with teeth 158, in the bore of which arranged a longitudinal rod, with the (iii bindingbill 157.. The other end of thisrod binding b" slidable uponthe fixed ring 160, a second spring 163 pressing a shoulder of this bush against a shoulder o n the ring 160, and there- Yby pressing the jaws of the binding bill iirmly against one another.` rlhe rotating of the fbindingbill is effected by a rack 164 (Figs.

119 and 20), which is arranged on the knotting carriage and which is guided in bearings 165 and 166, and is provided with a pin 167 (Fig. with a prism 168. The latter engages in ,Y

the fork of a twonrined lever 169, which ii i `V'iclihly arranged upon the pivot 130, and

enoages with a roller 133 in a cani groove,

F :j 1. irtshown, in a disc 170. A lever 17.1., (14 ig.

-) rockably arranged uponrthe pivot 144,

bears by means of avroller 172 upon the cam goove of dise 153, so that during one revoutioii "i the discs 176, and 153 the rotation of the bin ng bill and the opening and closing thereoi` are effected by the displacement of the ll rod, for the purpose of execut- :ig of the threads.

needle 172 (Figs. 3, 12 and 22) is mounted n a holder 173, which is secured to a pivot 174 and oscillatablyarranged on thev Knott-ing carriage, axtwo-arnied lever 17 5 bing roel-:ably mounted upontlie boss of the knojtting carriage, and one arm of this lever servino" as a tappet for theneedle 172. rllhe other arm of the lever 1'75 is pivotally connected by a pivot 176 with'the tension rod 177, (shown in Figs-3, 5v and 12).y A pivot 178 conneetsthe rod 177 with a lever 179 mounted upon a pivot 180 on the knotting arriage, the roller 181 of which bears upon a cani groove, not shown, in a disc 182, yand dui` ing the rotation thereof sets the 172 in oscillation.

Upon t-he knotting` carriage is secured a support 183V (Figs. 3, 5 and 12), in which is VI]ourimlletl a shaft 184 carrying alever 185. Tlielever 135 engages between a ring` 186 ,mounted `fast unen the shaft 174 and the holder 173, thereheing mounted fast upon the other side of the shaft 184 alever 18.7, of which the pin 188 engages with a prism 189 in a slot in a lever 190. The latter is oscillatvably arrangedV uponV the shaft 130 and engages, with a roller 191, in a cani groove, not

shown, in a disc 192, which, during its rotation, `imparts tothe .hook needle 172, besidesY Vthe oscillating movement previously menhook needleV an angle 197 secured to thetube heldereiieasing@ a e1f i0icinihe-vheel .196; and thereby 'holding the latter fast axially (Figs. 3, 5, 9v,.10and11).`r Upon kthe .other side kof the shaft 194i` is secured a chain wheel-.198, which is connected by a chain 1,99I witha second m1661200 (le 5.). mounted astupontlileboss. of the dis@ L92- Durlig 011@ tevoluton 0i the wheel 200, va hook 600 Fig-1Q) secured to the toothed wheel 198 executes an oscillating n'ioveinent and; thereby draws away the cut thread ends lying upon .the tubes 89,90, 91 and 92. A stop motion 201 (Figs.I 9 andr 10) engaging in the warps 76; and 7 8" is rotatably arranged on thetubeholder 85 upon a pin 202, and thisstopmotion, when one thread. misses,

is pulled from 'the' other ofthe two, threads to be tied on to one side or the other, that is downwards or upwards, and thereby'renders L possible the displacement ofthe feeler 27 and` londy grip. 57 vfrom the front being rotatably mounted upon the shaft 62 and .the clamped warp 76 being capable of beingbroughttothe desired tension by rotating one `of`v thecranks 64 arranged on" both'side's of the grip 57 A'lhereuponthe front grip 66, which has beenY brought into the lowest Lposition for an unhampered clamping of the previously: de'n scribed warp 76' rotating a crank 640 (Fig. 2.) ,is raised into theupperinost normal position and locked with the screw 70.@ One end of the old warp 7 8 is clamped and ygripped in a known manner to the rear, clamping beam 78 rotatably arranged on the machine, while the other end of this warp is slidforward over the rotatably arranged? roller 8 4 ai'idclamped and gripped in the front grip G5, thiswarp lying at a slight distance above the former and being capable of being placed under tension in case of need by rotating the clamping beam 78, which is provided with a ratchet wheel 641, and a ratchet lever 642 shown in Fig. 2. The clamping of the two wai-ps is thus eected in a horizontal position one above the other, an easy clamping and gripping of the warps in the grips 57, 58 and 66 being obtained from the frontof the ina-chine in consequence of the absence of all project-ing and obstruct-y ing parts above the warp, and a readily acces sible and convenient clamping and gripping of the warps in theclamp being obtained from "-f` the front of the machine, besides-'a complete supervision over the warp. Afterthe clamping of the warps, the knotting carriage 8 is pushed into the initial position on the right (Fig. 2), as seenk from the front of the inachine, against the .warps 76fand 78', the

yknown cords 93,localted in the Warps being pulled in a known inannerthrough the bores of the engaging tubes 89 to 92 of the knotting device and; beingfastened outside. themachine, rlhe knottingdevice is thereupon set iny operation, the threads of the old and new waips to be tied beingtaken awayone after the other by special means.v mentioned in my @Ofrending aP May 29', 1929 ((iase C), and these threads being seizedl bythe knotting implements, whereupon a linking and knotting is effected in the manner described in my specification No. 367,025 filed. May 29., 1929 (Case B), and the. tied threads or subsequently laid down in succession.

If the clamped warps in a plurality of inaf chines coupled together are to be tied in succession in"l the same directiony of feed., the

knottingcarriage may be very easilyy broughtr I viously brought into the lowest position` y rotatingv the driving wheel by hand, "afs well'as 1 `the lever 24 by looseninggthe fastening screw 25, thefeeler 27 beingthlown over, and there-V by vassuming a downwardlyhanging position for the purpose of pushing through the knit- `ting-carriage, after( the, removal ofI the, tube e d `holder mounted thereon, and reversalk of two pawls39 and 4:0, underneath a previously reclamped warp, the tooth vwheel provided on the driving shaft withr a key engaging in the longitudinal groove. in the latter'be'ing shifted, together with the knotting carriage, so that the actuationof the knotting implements can be effected from the saine. driving shaftover the entire longitudinal direction of a plurality of machines coupled together.

lit will be clear from the foregoing that from the special construction and arrange- ,ment/ ofthe. warp carriage, the bridge pieces ofthe bowsv 34 passingthrough underneath the driving shaft, vand this shaft,y the knotting device', the running rails for the knottingk carriage. and the racks for thedisplacement 'of' the warpY carriage and the knotting carriage beingarranged withinthe travel: ling' knotting carriage, an unhin'dered. automatic displacement ofthe knottin'g carriage, with` the knottin g device, 'is-obtained without .iiiterru'ption fromvv one machine to a second effected.

ting `carriage in conjunction with the driving shaft'and the sliding and displacing members,` togetherwith the special arrangement-of the drivingmembers for actuating the implements for displacing the knotting and warp carriages,`as well as those for the a utomatic throwing of the linotting carriage out of action, aswellas the implements for taking away the threads from the warp, and

those for linking and tying thethreads, "there is VobtainedV underneath the Alatter and the warp a free andreadily accessible 'warp plane, which on the one liaml'rcnders possible a quickclamping of the warps in the grips, land on the other hand a Vcontinuolls,

constant .and complete supervision for the control of the tying of the warp, and of the warp threads already tied, a single completely free warp plane being obtained in the entire longitudinal direction ofa plurality of machines coupled together, which facilitates the operation and supervision by the workers'in anexceedingly advantageous manner.` y y' -f What I claim' is zf- -Y "1.' A machine for knotting a fresh warp to an existing Vvmrp,1which warps are clamped and secured in grips, comprising grip Vcarrying members `which are ycom Y wheelsV rotatably mounted on the knotting carriage and meshing vwith the said racks, ratchet wheels associated with the toothed wheels, and ratchet mechanisms for rotating on the carrying members for the knotting carriage to travel on, knottingimplements mounted on thelrnotting carriage in driving relationship with the driving shaft, means for automatically displacing the knotting carriage in a longitudinal direction from one machine to another for the tying of the previously prepared and clamped warps, a toothed rack fixedly mounted upon the mau chine, a second toothed rack fixed to the warp carriage and displaceable with it, both of the said toothed racks being arranged inside the warp carriage in such a way that the transverse bridge pieces of the Ydownwardly bent bows arevcontinuous underneath the racks so that one and the same rack is made continuous for a plurality of machines coupled together, toothed wheels rotatably mounted on the knotting carriage and meshing with the said racks, ratchet wheels associatedwith the toothed wheels, ratchet mechanisms for ro tating the ratchet wheels and. thereby displacing the knottin carriage and the 'warp carriageautomatically and uninterruptedly, implements'for throwing the lznotting carriage out of operation, implements for taking a #aythe threads from the warp, and means for actuating the knotting implements, `all the Vactuatingmeans for the knotting. carriage disconnecting implements, the threa'dfremoving implements7 and the knot ting implements, and the displacing means for the warp carriage and the knotting carriage, being located below the said implements and carriages and below the planes of the warps for rendering possible an unhampered quick clamping of the warps and a con tinuous and complete `supervision of the warp when clamping and tying the same, also an easy control of the threads of the warps already knotted and over the entire longitudinal front evenwith a plurality of machines coupled together.

In testimony whereof I have atiixed my signature.

ULRICH BISCH OF.

the`ratchet wheels :and therebydisplacing` Y the knotting carriage and the warp Vcarriage automatically and unmterruptedly.

2. 1A machine for knotting a fresh warp to an existing warplying opposite to it in a different horizontal plane in a plurality of machines coupled together, with clamped warps, comprising .carrying members con structed as downwardly bent bows .arranged below the planes ofthe warps,v grips carried by the carrying members for receivingthe fresh warp, the grips Aforming with thecar-v V rying members a travelling warp carriage, a

driving shaft arranged ina longitudinal di- Y rection in the warp carriage' between the grips, transverse bridge pieces forming lpart of the carrying members extending .through underneath the drivingshaft, a lrnotting carriage arrangedV in the `warp carriage.v rails

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