US2324565A - Bobbin delivery control for weft magazines - Google Patents

Description

y M. DANIELS 2,324,565

BOBHIN DELIVERY CONTROL FOR WEFT MAGAZINES Filed July 12, 1941 2 Sheets-Sheet 1 BF BDE so \NvENTo R ATTORNE M. DANIELS July 20, 1943.

BQBBIN DELIVERY CONTROL FOR WEFT MAGAZINE-S" 2 Sheet-Sheet 2 Filed July 12 l2 DE] \NVEN TQR 1 MANUEL. DANIELS M ORNEY Patented July 20, 1943 BOBBIN DELIVERY CONTROL FOR WEF MAGAZINES Manuel Daniels, NewBedford, Mass, assignor to Gosnold Mills Corporation, New Bedford, Mass, a corporation of Massachusetts Application July 12, 1941, Serial No. 402,057

14 Claims.

This invention relates to weft replenishing looms and it is the general object of the invention to provide means which permits several stacks of a magazine to supply the same kind of Weft to replenish one shuttle while another stack supplies a different weft to replenish a second shuttle.

In the weaving of figured inarquisette or curtain fabrics it is customary to employ a decorative stripe of relatively coarse weft or roving which is introduced at. regular intervals into a ground fabric woven with a imer weft. bobbin for the fine ground weft carries a supply the length of which is several times the length of the yarn carried by the bobbin which supplies the coarse decorative stripe. As aresult of this condition the bobbins carrying the coarse yarn become exhausted at a much faster rate than? do the bobbins with fine weft. It is an important object of my present invention. to provide a magazine with several stacks of coarse roving or weft and draw the bobbins fromthese stacks in a regular sequence so that all of the stacks will become depleted of reserve bobbins at a substantially uniform rate. o

The usual multicolor weft replenishing loom employs a magazine operating with a selector movable to severaldifferent positions to cooperate with releasing means for the different stacks. It is a further object of my present invention to provide a variable stop means which will locate the selector for cooperation progressively with the various releasing means.

It is another object of my present invention to provide means for preventing operation of the selector placing mechanism when a transfer operation of the loom involves the fine weft. The purpose of this control is to prevent a transfer of line weft from interrupting the sequence in. which, bobbins are draWhiprogressively from the} .stacks'.carrying thefco'arse' filling. If the placing mechanism forthe selector should be given a motion at the time fine weft is replenished the selector would skip one stack and draw a disproportionately large number of bobbins from the other stacks, causing one of the stacks to become empty-while several reserve bobbins remained in; the other stacks. This result I accomplish by means of a shield or the like which controls the feeding mechanism for the selector positioner in sucha way as to disable the feeding mechanism when a transfer. occurs which does; not involve the coarse weft.

. It is amore particularobject of my present invention toprovide a drum or the like which is co-axial with the selector and provided with positioning balls movable by gravity to the bottoms of slots in the drum. The slots are spaced angularly.around the axis of the selector and located at different distances along the length of the drum to locate the balls at different points along the axis of the selector.

motion 'to cause the balls to fall oneby one into the path of some part of the selector to position the latter for cooperation progressively with the releasing means of the various stacks of coarse weft. The pawl is disabledby a shield which prevents angular motion of the drum when the fine weft is replenished.

It is another feature of my present invention to provide a placing mechanism to control the location of the selector together with means which moves the selector away from its positioner at regular intervals to permit the gravity actuated balls to move to stopping position and thus locate the selector in anew position when it returns to control relationship with respect to the stacks of coarse wefts.

With these and other objects in View which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described arid set forth.

In the accompanying drawings, wherein a convenient embodiment of my invention is set forth, Fig. 1 is a side elevation of a multicolor weft replenishing mechanism as viewed from the center of the loom and having myinvention applied thereto,

Fig. 2 is an enlarged vertical section on line 2-2 of Fig. 1, V v v Fig. 3is a plan view of a fabric which is woven with the aid of my present invention,

. Fig. 4 is an enlarged vertical section on line" 44, Fig. 1,

Figs. 5 and 6 are v ews similar to Fig. 4 but showing the cylinder in different positions,

Fig; '7 is a diagrammatic view showing the connections between theshuttleboxes at one end of the loom and the selector for the magazine at the opposite end of the loom with the parts set in position for drawing bobbins from the front and back stacks of the magazine, 1

, Fig. 8 is a view similar to Fig. 7 but showing the parts set in the position for drawing bobbins from the intermediate stacks of the magazine,

Figs. 9 to 12 are diagrammatic views showing vention,

o A pawl and ratchet are provided to give the drum angular Fig. 13 is a vertical section on line G-3 of Fig. 1. showing one of the stops in position to permit drawing of reserve bobbins from the front stack of the magazine and corresponding to the setting shown diagrammatically in Fig. 10,

Fig. 14 is a vertical section on line i li4 of Fig. 1 showing the position of the other stop when the parts are in the position shown in Fig. 10, and

Fig. is a view similar to part of Fig. 2 but showing a modified form of yielding lock for the positioner cylinder.

Referring to the drawings, the loom frame ill has mounted thereon magazine M of the multicolor type having in the present instance four vertical stacks of reserve bobbins. The stacks have located at their lower ends bobbin delivery cradles H controlled by vertical release slides l2, i3, i4, and i5 arranged respectively from front to back in the magazine. Each vertical slide has the lower end thereof slotted as at i 6 to cooperate with the associated cradle If, and each slide is also provided with spaced upper and lower operating lug i? and I8, respectively, which cooperate with a selector i9.

The selector includes a horizontal rod 29 slidably mounted in bearings 2i formed on the magazine frame and extending transversely of and adjacent to the vertical bobbin release slides. The selector includes a casting 22 secured as at 23 to the rod 2% and having a pair of spaced front and back actuator fingers 2:3 and 25, respectively. As the rod 2% slide horizontally in its bearings it carries the casting 22 and fingers with it. The selector can assume four operating positions in each of which one of its fingers will be aligned with the lugs if and N3 of a vertical slide. A lever 39 pivoted at 3! to a part of the magazine frame has a vertical arm 32 which cooperates with a collar 33 secured to the rear end of rod 26. Movement of lever 39, as described hereinafter, causes sliding of the selector to any one of its four selecting positions.

The selector not only moves longitudinally but also has a rocking motion in opposite directions imparted to it by a lever 35, Jivoted on the rod and cooperating with a fin 36 on casting 22 parallel to the rod and on that side of the latter opposite the vertical release slides. In order that the lever may oscillate the selector it is connected to a depending rod 3'! the lower end of which is connected to an actuator lever 58 pivoted to a vertically reciprocating head 39. The head ordinarily has a down motion when the shuttle is under the magazine and is being detected by a weft detector not shown, and if the shuttle is depleted of weft the lever 38 lowers rod 37, thereby rocking the selector in a direction to raise whichever vertical slide is in alignment with one or another of the lifting fingers 24 or 25. At a later time in the operation oithe loom, after the depleted shuttle has been picked to the opposite end of the loom and is about to return, the rod 3! is raised by the head 3:3, a motion which is not dependent upon the previous indication of weft exhaustion, to give the selector an opposite rocking motion the efiect of which is to lower the previously raised release slide if the selector is still aligned with this slide. As the latter i lowered it operates to rock the associated cradle to deliver a bobbin from the corresponding stack, the bobbin having fallen into the cradle when the slide was first raised. The released bobbin then moves by gravity to transfer position in known manner under a transferrer arm 45 pivoted as at 4! to the magazine frame and actuated in usual manner by a lay operated latch 52.

The magazine is provided with a top rocking shaft 5 oscillatable in bearings 46 on the magazine frame and having secured thereto a shelf 4'! which is normally in raised position. Each of the vertical slides is provided with a dog 48 normally held in inactive position when the vertical release slides are down, but when a slide is raised as already described its dog projects over the shelf a: and when the slide is later depressed the dog lowers the shelf 4'! to cause oscillation of shaft 45 in a left hand direction as viewed in Fig. 2.

Shaft 45 and its shelf 4'! are held yieldingly in either of their extreme angular'positions by a yielding lock shown in the right corner of Fig. 1 and designated generally at L. This lock comprises an arm 53 secured to shaft 45 and a lever 5i pivoted as at 52 to the magazine frame and having a sliding yielding connection 53 with the arm 56. A stop screw 54 on the lever 52 engages a part of the magazine to limit motion of the lock and determine the high position of shelf 41. A rod 55 connected to lever 52 extends downwardly and passes under the .transferrer latch 42 and operates in such manner as to lift the latch into the path of a bunter 56 on the lay 51 when depression of shelf 4'? rocks shaft 45.

A resetting and revoking mechanism for the magazine includes a shuttle feeler Hi pivoted as at 5! with respect to the magazine frame and having a depending rounded forward end 62 adapted for engagement either with a misplaced shuttle or part of the lay. The shuttle feeler is connected to an ascending rod 63 the upper end of which is connected to an arm 64 secured to the shaft 45. When the shaft 45 turns to oper-' ating or transfer position by depression of shelf t1, arm t l moves downwardly to lower the shuttle feeler 68 from its normally raised position to its revoking and resetting position shown in Fig. 1 and at the same time causes the latch 32 to rise as already described and as shown in Fig. 1. When the shuttle feeler later rises it acts through link 63 to give the shaft 45 a reverse turning the effect of which is to move the lock L to lower the rod 55 to permit the latch 42 to fall to its normal position clear of the bunter 56. The shuttle feeler is lowered every time the magazine is set for transfer and releases a bobbin, and the top shaft is given a reverse rotation to return to normal position whether raising of the shuttle feeler is caused by a misplaced shuttle or by engagement with some part of the lay, such as that designated at 65, Fig. l. The yielding lock L holds the shuttle feeler in its raised position. 7

The mechanism thus far described is of common construction and operates in the usual manner. So long as suflicient weft for continued weaving is present the selector [9 is oscillated to depress its fingers 24 and 25 every second beat of the loom when the active shuttle is on that side of the loom opposite the magazine. When exhaustion of weft occurs in the active shuttle under the magazine the selector is rocked in one direction to raise the vertical slide aligned with it to permit the associated dog 48 to move to a posi-:

tion over the shelf 41, and when the empty shuttle is at the opposite end of the loom the selector rocks in the opposite direction to depress the pro viously lifted vertical slide, if still aligned with it, to set the magazine for transfer. The cradles are normally empty and receive a-bobbinfrom v tuftsor the like.

i 7 2,824,565 the associated stack when thecorresponding ver-:

tical slide ,risesand delivers the bobbin thus received {for transfer whenthe slide is lowered.

This mechanism is of common construction andoperatesin the usual manner except, as indicated hereinafter, and prior Patents N05,. 972,722; and 1,030.748 may be referred to for a more complete description. of the magazine.

. In carrying my present inventioninto effect I modify the usual operation of the magazine to adapt it for the weaving of a fabric having ground. sections of fine weft which alternate with stripes of coarse roving or the like which may be. Anexamplefof such. a fabric is shown in Fig. 3 in which the warp. threads W andthefine ground weft threads F. form the ground sections of an open mesh fab-.

used for decorative effect.

rich At; regularlyireeurring yintervals a heavy coarse weft D is woven into the fabric to form a stripe, theweft D being attached to the warps at spaced intervals. as at A, to form floats be tween the points A which are later cut to form The 100m operateswitlr two shuttles, on SF for the fine weft shown'inFig. 8 and the other SD for the coarse weft, shown in Fig. 7. The

decorative weft is generally of largediameter so that one bobbin will suflice; for butafew stripes, whereas theggroundorfineweft FliSOf small diameter and one bobbin wound with it can weave a large-number of ground sections before becoming; exhausted. difference in the rat at l which ,the two shuttles become exhausted leadsto the desirability of storing more reserve bobbins of coarse weft in the magazine.thanthose which carry the fine weft. Accordingly; I provide the front three stacks of the magazine with coarse weft bobbins and the rear stacl; with fine weft coarse weft bobbins in a given rotation or sequence from the front three stacksso that the bbins, and malge provision for drawing the in register with the front vertical release slide Inthe position shown in Fig. '7, spring 91 is free to move the selector to its extreme front shuttle SD can bereplenished from a relatively largeistore of coarse weft bobbins in the maga-.

zine [The mechanism for controlling the; shuttle in which the decorativebobbins are drawn includes acontrol forth selector [9, which will require the latter to register in a definiteprescribed order withthe vertical release slides 12, A

sand l shut 'permittin g the selector tomove to rear position for registry withthe vertical release slide I 5 whenever the g'roundweft is being woven. Since thecolor selector mustlbe capableof registering withjany of the f slidesHIL 13 or H when the coarse weft shuttle is active I employ the con nection shown in Figs '7 and 8 for accomplishing]this'.result. i I

LeverTBO is pivoted as at'tl tothe loomside and has [a short arm az connected to the upper end of'agi-lexiblejcable 8 3, the lower end of which extends around pulleys 84 and then upwardly to be attached in the present instance to the. bottom o'f the lower shuttle box 85 as at8 6 Shuttle boxlt5. r ee1ves the shuttle SF while the u p r ShuttlebOX81freceives the shuttle SD, These. boxes are shiftable vertically by, means of a box lifterrod' 88 so that either otthe shuttle boxes will bein active or picking position with respect tolthe lay. fMechanism not described but well uh erstood bail be employed for shifting the link 94; the front. the reviously on arm 82 tends normally to move the lever 80 in a clockwise direction as viewed in Figs. .7 and 8; to keep the cable 83 taut. A second spring 91 is connected to lever30 and tends normally to move the color selector forwardly or to the right as viewed in Fig.1. The upper ends of these springs maybe secured to convenient fixed parts of the loom construction. When the ground weft is being woven by shuttle SF the shuttle boxes will be in the high full line position shown in Fig. '7 and the cable 83 will. have been moved to place lever 80in the full line.

position shown in Fig. 7 the effect of which is to; i

'7, thus permitting spring 91 to. move lever 30 110 its foremost position shown in dotted lines in Fig. '7 to place the front finger of the selector position and pin 9| is at the rear endof the slot 92.

i Fig. 8 indicates that when the coarse weft is:

active and lever 80 is moved toits extreme forward position, it is possible for the color slideto.

assume intermediate positions because of the pin and slot connection between the lever 80 and the link-94. Thus, in Fig, 8 the full line position shows finger 2.4. in register with the second vertical release slide l3 and the pinh9l in aninte r;

.mediate part of the slot 92, whereas the dotted lineposition in Fig. 8 shows the color slide with its rear finger 25 in register with the third vertical release slide l4 and the head 93 in rearmost position relatively to the pin 9 l. u Thusa shift of th boxes to render shuttle SD,

active permits the selector to occupy anyone of itsthree selecting forward positions, and a shift to render shuttle SF active requires the selector to be in rearmost position in register with slide I5- The amount of shift of the boxes, together with the proportions of the levers 30 and 80 and the location of pin 9| and pivot 95 are such that a box shift corresponding to the height of a. single shuttle box permits the color selector to assume four different selecting positions. To this extent my invention differs from the usual multicolor weft replenishing loom wherein the.

shifting shuttle boxes have a different position for each different position of the selector. h i

It is to be understood that when the boxes shift to move the shuttle SD to' active position the color slide can move from its rearmost position forwardly to any of its other three selecting posi tions, and I provide a variable stop whichis r0;

. tatabl e tmdifferent positions for the purpose of stopping-the selector in different positions as it inogves forwardly from its rearmost position.

hi'c'h nt r ga e; in arod head 93 forwardly from a cylinder I05.

This feature of my invention is shown more particularly in Figs. 1, 2, 4, 5, 6 and 9to 14. Astand I00 is secured as at H to the foot Ill! ;of ,the

magazine and has secured thereto as at ll)? a front bearing bracket 104 which extends upward ly to guide and supporta gudgeon I05 extending A eare a bracket. I01 is secured as at I08 to thek front bracket I04 and extends upwardly:tohave jthe rod'fzu ass therethrough behind and in engage; mea with t ar or. iwnc f yli q r 5595i as viewed in Fig. 1. The cylinder comprises a body H surrounded by a shell Iii held frictionally thereto, as by a tight fit, and there are extending rearwardly from the body three actuating pins designated at H2, H3 and ii which are equi-distant frornthe axis of rod 2 and are located preferably at the corners of an" equi-angular triangle. The pins H2; H3 and Md are fastened at their right ends, see Fig. 1, to the cylinder Hi), while theirleft ends are secured to a disk H8 which is close to bracket island through which rod 29 slides. The pinsare adapted for engagement with a pawl H5 pivoted as at H6 on an arm ill secured to rocking shaft 45 as shown in Figs. 1 and 2. A yieldable looking lever lZEi is pivoted at 52f to the magazine frame and cooperates with the pair of actuating pins opposite the pin in engaging position with respect to the pawl H5, and is held in position yieldingly by a leaf spring i222.

The body H0 of the cylinder is provided with two radial front and rear bores E25 and 5136, respectively, the outer ends of which are closed by the shell Hi and the inner ends of which communicate with the bore if"! of the body H8 which receives the forward end of the rod 26. The latter is slidable within the cylinder and the cylinder rotates around the rod in a fixed plane determined by the brackets iilfii and liii. The

bores i 25 and I23 are located at different longitudinal points along the length of the cylinder, the distance between them being equal to the distance which the color selector moves to change registry from vertical slide Hi to slide M. The front end of bore 12? terminates at L28 to form the front stop of rod 223.

The angular relation between the bores I25 and IE6 is set forth for instance in Fig. 4 which shows the front bore I25 in full lines as extending downwardly and to the left from red 20, while the other or rear bore E25 extends downwardly and to the right and is indicated in dotted lines. The angular distance between these bores is substantially 120. The bores I25 and E25 house balls I and II, respectively, which are free to roll along their bores by gravity.

The pawl H5 is normally in'feeding position with respect to the cylinder pins when the selector is in registry with either of the slides i2,

i3 or id, but in order that the cylinder may not be rotated when the fine weft is being woven, I provide a shield shown more particularly in Figs. I and 2' and coinprisinoa stud see fixed with respect to rod 29 and having extending iorwardly and horizontally therefrom a shield Wire 31 having a, relatively low elongated section Hi2 which ends in a relatively high shielding section 133 at the forward end of the wire. The sections I32 and I33 are so related to the pawl iiii that the latter can be in engaging position with respect U to any one of the pins H2, H3 and H4, depending upon their position, whenever the selector is in vertical register with the vertical slides l-2-,

I3 and i l, but when the selector is in register with the vertical slide 15 the high section i3 3 lifts the pawl H5 out of engaging position with respect to the cylinder actuating pins. Y

- Assuming that fine weft is being Woven the shuttle boxes will be in the full line position shown in Fig. 7, the selector will be in rear position registering with vertical slide as indicated in Fig. 9, and it may also be assumed that both of the bores I25 and IE6 are inclined downward-1y but in opposite directions as indicated in Figs. 13 and 14. If the fine'weft should become'depleted under these conditions arep1enis'hment from the rear stack will occur in a manner: already de-' scribed, and shieid 133- will be inrearinost posi-' tion under the: pawrm to hold the latter in the inoperativedottedline position shown in Fig. 2

with respect to thepin- H2. When th'epatte'rfi' requires that the coarse weft D b'e woven, the

boxes will shift to the positionsnown in Fig. 8, whereupon the 'piing" 9-1 wilrmove the rodZll to its extreme forward position. to engage end In (if-bore" lflandeause registry of the selector with" vertical release slide l2 due to the fact that the stop balls l andIL are bothat the'lower' ends-'- as the top shaft- 45' is re'set dueto rising-'of theshuttle feel'er and rock the cylinder through approximately in the direction of arrow a, Figs. 2 and 4, thus moving bore I25 tea vertical position overrod 20 to permit ball I to fall by gravity on to the rod as indicated indotted lines in Fig. 5. Upon completion of the stripe of coarse weft the shuttle boxes again shift-land" the rod 2fljino'ves-to its'rearmost position, where'- upen ball I falls to the bottom of bore [25 to-b'e in t'hepath of the forward end of rod 20'; When the boxes again shift to" render the coarseweft' active, the rodZiI will move forwardly underaction of spring 97 until it engages ball I wliich is so located as to stop the selector with finger 24 in register with vertical release slide 13 as shown in Fig. 11. When a second replenishment of coarse weft occurs the bobbin f or' it will be de rived from the second stack, and the cylinder will be given another angularmotion-of 120 in the direction of arrow a. Fig. 5 to inclinethe" bore I25 downwardly and raise the bore l ZB'Qto a position over rod' 20 as indicated in'Fig. 6;

whereupon ball I willmove to the bottom of its 1 b'ore out of alignment withthefrod zfl and ball" II" will-fall on to rod: 20 as indicated in dotted lines in'Fig.-6.

When shuttle s'F again? becomes active rodz'i is moved to its rearmost'position and ball li fajl'ls" to the bottom ofiit's bore l26'irr the path" of rod 25 and when thelatter again moves forwardly it will stop the selector in alignment with slide M as shown in Figf1'2. Aithird transfer of coarse weft occurring'with the'parts in this posi= tion will involve a rese'rv bobbin drawn from third Stack and-1 pawl H 5*will agai n'tur'n the" positioning cylinder to move it back'tii the posit tion shown in Fig. 4 to causeball'li to roll away from rod and'leave the latte'rfree to move'to" ts front position again; Three successivetrans rers of coarse weft thus involve reservebobbins" derived progressively from thefirst; second, and third stacks in the magazineyand" return the" selector toa position to start another'sequence' or-repeat of selections from the front three stacks and the latter are 'depl'eted uniformly of their-reserve bobbins. It willbe' noted thata transfer involvingthe' fine weft is-inop'erative' toturn' th'e cylinder and when the sequenceoftranSfts from the front;

three stacks is interrupted by a transfer from the rear stack, thepolor selector-returns tothe position which it leftwhen moving rearward'ly" for the transferring of 'fine weft."

require two successive*replenishments between" The coarse" Weft str pes are ordm-arilyfso narrow as n o:

their firstand last picks and there is therefore nolikelihood that the cylinder will be given two angular motionswithout an intervening backward motion of rod 2ll to permit one or the,

to their respecing oppositely extending arms 142 to each of which'is secured an upwardly extendingrod I43 surrounded by a compression spring I44 I and formed with ahead I45: A look plate I46 at one side of pawl H5 floats on the springs l44 and is held by the latter against the pins H2 and I I4. Rods I43 pass through plate I46 and-heads I45 are normally above the plate to prevent its accidental loss. AS the cylinder turns 60" pin II 4 depresses the plate I46to the dotted line position of Fig. 15, compressing the springs, and as the cylinder continues to turn the springs raise the plate and pin H4 and force pin H3 against the left end 'of the plate. This operation is re-; peated at each 120 turn of the cylinder, the pins coming into play successivelyl, t From the foregoing it will be seenthat. Ihave provided apositioner for the selector rotatable to bring a plurality of different stops successivel y into controlling position to register the selector with the vertical release slides of the group" of stacks of coarse Weft reserve bobbins in afdefinite rotation orsequence which will insure uniform depletion of the'sestacks. It will also be seen that I have provided 'a series of gravity actuated stops for the selector moving radially with respect to the rod 20 in a cylinder retatablecoaxially withthe selector. It will further beseen that a shield is provided to renderthe feed pawl for the positioner inoperative when the fine weft is being replenished so that the uniformity of depletion from the stacks havingthe' coarse weft will not be interrupted. The structure shown in-Figs 7, and 8 permits the selector to be registered with any one of the weft is active.

three front stacks when the shiittlewith coarse seen that changes and modifications may be mad therein by those skilled in the art without departing from the spirit and scope of the in-] ventien and Ifdo not wish tobe limited to the details herein disclosed, but what I claim is; M M

1. In a weft-replenishing loom operating with two shuttles having alternate periods of activ: ity, one of saidshuttles having weft whichis depleted at a slowrate and the second shuttle having weftwhich is depleted at a fast rate during the weaving operation, a full supply of weft injsaidsecond shuttle being more, than that needed-to weave during anyone period of activanism including an actuator to have an actuating movement incident to each replenishing op: eration of the loom and positioning elements to be moved by the actuator, said elements ar-:

ranged so that successive movements thereof by the actuator locates the selector in saidorder,

shuttle is active to prevent movement of said elementsjbys'aid actuator. I

2 In a weft replenishing loo-m for weaving a fabric having a groundoffine'weft across which I extend stripes of coarse weft, the 100111 having ity of saidsecond shuttle, a magazine having a plurality ofstacks of reserve weft, certain of said stacks arranged ina group and havi g reserve weft correspo-ndingto said, second shuttle and the remainder 9 0f s/aid stacks having reserve weft c responding to said one shuttle, a! stack selecto, movable intoregistry with each'of said I stacks, one at a time, nieanstoc ause the selector to register with saidfMrnainder, of "stack-s when said one 'shuttle s ems; mechanism "to cause the selector to be-lbcated in:selecting 'position with respectto thestacks of the group in a given o'rd r 'in; a succession ofreplenishing operations involving reserve weft of I the group, saidfm'ech a shuttle for each type of weft and a full supply of coarse weft in the corresponding shuttle being more than that needed 'to weave any one ofsaid stripes,"a stack of reserve bobbins of fine weft, a group of stacks of bobbins of coarse weft, a stack selector movable tojselecting position with respect to eachstack one at a time, a positioner f'orfthe selector having a plurality of stops movable progressively to stopping position with respecttoj the selectorduringjsuccessive replen ishing operations involving coarse wefttb locate the-selector in different selecting positions with respect to thestacks in the group in a predeter l mined sequence, actuator means operative upon each replenishing operation involving a bobbin derivedfrorn the group to move thepositioner and cause the latter to initiatemovernent of a' different stopto stopping position with respect to the selector; theselectonwhen registering with? any stack in the'group f-preventing completion of said movement of the last named stop, means to movethe selector away from said stops sub sequent to each replenishing operation involving a bobbin derived from the group and register said selector with said stack of fine weft, wheref upon a sto-p rnovementof whichtoward stopping position was initiated by the actuator prior to mevernent of the selector away from said stops completes movement to stopping positionyother means to return the selector to engaging position with respect to the stop in stopping posi tion, and means to prevent the actuator means from movingthe positioner when theselector" is inre gister with said stackfot iine weft;

3. Ina weft replenishing loomfor weaving a fabric having ground sections woven with-fine weft alternating withstripes woven with coarse weftfthel-o om having'one shuttie'for fine weft and another shuttle for coarse weft and, a full" supply of coarse weft in said 'othershuttlepeing more than that required to weave anyone of said stripes, a stack of reserve bobbins of fineweft for said one shuttle, a group of stacks of reserve:

bobbins of coarse Weftfor said othershu'ttle,a

stack selector mechanism movable to register withsaid one stack and alsomovable to register I with each stack inthe group, one at a time, a

positioner for the sejlector actuating meansflto give the positioner a movement for each replenishment' involving coarse weft, means to move the selector" into registry with said one stack subsequent to each replenishment involving a; bobbin drawnffrom the grou'pga series of positi-oning elements controlled by the positioner and movable progressively into stopping posi, tio'nwith respect tothe selector in a succession of replenishing operations involving coarse weft to locate the selector in register with the stacks I of the group in a given order; each element dcpendent upon rnovement of the selector to regis try withsaid one stack in order to have stopping I relation with respect to the selector, meaansfto return the selector to the stops and cause engagement of the selector with the stop in stopping position when said other shuttle returns to action, and means to prevent movement of the positioner by said actuating means when the selector is in register with said one stack.

4. In a weft replenishing loom to weave a fabric having sections of ground weave woven with fine weft alternated with stripes Woven with coarse Weft, the loom operating with two alternately active shuttles one of which carries the fine weft and the other of which carries the coarse weft, a full supply of coarse weft in said other shuttle being more than that needed to weave one of said stripes, a pair of shuttle boxes shiftable to place either box in picking position, one box for said one shuttle and the other box 'for said other shuttle, a magazine having one stack of reserve fine weft bobbins corresponding to said one shuttle and having also a group of stacks of coarse weft bobbins corresponding to said other shuttle, a selector movable to different positions to select bobbins from any of said stacks, one at a time, means controlled by the shuttle boxes to move the selector to register with said one stack whenever said one shuttle becomes active subsequent to the weaving of a stripe by said other shuttle, a plurality of stops for engagement with the selector, one stop for each stack in said group, a positioner for said stops effective when having a series of step by step movements to cause said stops to tend to become effective progressively to act as stops for the selector to register the latter with the stacks of the group in a given sequence, actuator means having a working stroke incident to every replenishing operation of the loom and operative to given the positioner step by step movements, one movement for each replenishment of coarse weft, the selector when in engagement with one stop preventing the other stops from becoming effective to act as stops therefor, until said selector moves into register with said one stack, means controlled by the shuttle boxes when the coarse weft shuttle again becomes active to move the selector into engagement with the stop which became effective to act as a stop during the preceding movement of the selector to registry with said one stack, and a preventer for the actuator means controlled by the shuttle boxes when the fine weft shuttle is active to prevent movement of the positioner when the selector is in register with said one stack.

5. In a weft replenishing loom, a group of stacks of reserve weft bobbins, a stack selector movable progressively along a given line to selecting position with respect to the stacks, one at a time, a positioner for-said selector including a cylinder rotatable about an axis parallel to said given line, a plurality of stops for the selector located in the cylinder and spaced at different points along the length of the cylinder, one stop for each stack, certain of said stops movable by gravity progressively toward stopping position with respect to the selector and against the latter a the cylinder rotates, means to give the cylinder an angular motion for each replenishing operation involving a bobbin drawn from the group and change the relationship of the stops relatively to the selector, and tend to causethe stops to become effective as stops for the selector in a given sequence, means operative incident to successive replenishing operation to move the selector away from said stops and permit said certain stops to move by gravity into and away from stopping position to cause said stops to become positioned progressively in st0p-. ping position in said given sequence, and means to thereafter return the selector to the stop i stopping position.

6. In a weft replenishing loom for weaving a fabric having a ground including fine weft which is consumed at a low rate and spaced stripes formed of weft which is consumed at a high rate during the weaving operation, a shuttle for each a type of weft, a full supplyof coarse weft in said other shuttle'being more than that required to weave any of said stripes, a stack of reserve bobbins for the shuttle having fine weft, a group of stacks of reserve bobbins for the shuttle having coarse weft, a selector movable 'to selecting position with respect to each of the stacks, one at a time, selector operating means to move the selector to selecting position with respect to said one stack subsequent to each replenishing operation involving-a bobbin derived from the group, a positioner for the selector including a plurality of stops located at different distances along the line in the direction in- Which-the selector moves, certain of said stops being movable by gravity relatively to the positioner toward and from the selector, actuator means to move the positioner for each replenishing operation involving'a. bobbin derived from the-group to cause said certain stops to move one at a time toward stopping position with respect to the selector, said movement of the selectorto selecting position with respect to said one stack permitting any one of said certain stops which has moved toward the selector to complete movement by gravity into stopping position in the path of said selector, means acting subsequently to operation of said selector operating means to move the selector against the stop in stopping position, and means to revent the actuator means from moving the positioner when the selector operating means moves the selector to selecting position with respect to said one stack, .said stops beingin stopping position in such order due toinovement of the positioner as to place the selector in selecting position Withrespe'ct to the stacks of the group in a prescribed order. I

7. In a weft replenishing loom operating with a pair of shifting shuttle boxes either one of which may become active, a shuttle for eachbox,

one shuttle carrying a weft which .i consumed relatively slowly and the other'shuttle carrying a Weft which is consumed relatively rapidlyduring the weaving operation, a stack of reserve bobbinsfor said one shuttle, a group of stacks of reserve bobbins for the other shuttle, a se-' lector movable to selecting ,position in register with respect to all of the stacks,,one at a time, means to register theselector with any one of the stacks of the group, a member controlled by Q said one shuttle to be active, said train of con-' nections including a lever and a lost motion connector between said lever and said ,membe r'effective when the shuttle boxes are in position to cause said other shuttle to be active to permit said selector to be in selecting position with respect to any stack in the group.

8. In a weft replenishing loom having 'a pair of shuttle boxes each movable to picking position,

a shuttle for each shuttle box, One shuttle carry: I

ing a weft which is consumed at a slow rate and the other carrying a Weft-Whichis consumed at a fast rate during the weaving operation, a stack of reserve bobbins for said one shuttle, a group of stacks of reserve bobbins for the other shuttle, a selector movable to selecting position with respect to any one of the stacks, one at a time, and selector position controlling connections between said selector and the shuttle boxes, said connections including a lever controlled by the shuttle boxes to be in one position when said one shuttle is active and in another position when the other shuttle is active, a second lever connected to the selector, 2, rod connecting said levers and having a lost motion connection with the first named lever, the shuttle boxes in one position to act through said levers and rod to move the selector into selecting position with respect to said one stack, and resilient means to move the first named lever to said other position thereof and toward the second named lever when the boxes move to cause said other shuttle to be active, said selector by reason of the lost motion connection between the rod and the first lever being movable to registering position with respect to any stack in the group.

9. A positioner for the stack selector of a weft replenishing loom having a plurality of reserve bobbin stacks from which bobbins are to be selected for replenishing operations of the loom, said positioner comprising a cylinder having an axial bore to receive part of the selector and said cylinder also having a. plurality of transverse bores spaced longitudinally of the cylinder axis and radiating from the axial bore and angularly spaced about the axis of the cylinder, and a stop in each radiating bore movable under the action of gravity into and away from the axial bore as the cylinder is rotated on its axis.

10. A positioner for the stack selector of a weft replenishing loom' having a plurality of reserve bobbin stacks from which bobbins are to be se-.

spaced about the axis of the cylinder, a selector stop movable by gravity in each transverse'bore, and a plurality of actuator elements on the cylinder spaced angularly about the cylinder axis by which the cylinder can be turned on its axis.

12. In a weft replenishing mechanism includ- .ing a longitudinally movable selector and a rotatof said elements, said member movable relatively to either guide against the action of the resilient means while remaining relatively stationary with respect to the other guide.

13. In a weft replenishing mechanism includ ing a longitudinal movable selector and a rotatable cylinder including a plurality of stops for l i the selector and means to give the cylinder step by step angular movements, a yielding locking mechanism to hold the cylinder in a plurality of angular positions comprising angularly spaced elements onthe cylinder, a support fixed with respect to the replenishing mechanism, a pair of against the action of said resilient means when lected for replenishing operations of the loom;

said positioner comprising a cylinder having an axial bore to receive part of the selector and said cylinder also having a. plurality of transverse bores spaced longitudinally of the cylinder axis and radiating from the axial bore and angularly spaced about the axis of the cylinder, and a stop in each radiating bore movable into and away from the axial bore, the stops moving succes-' sively into the axial bore at spaced points along the latter as the cylinder is rotated.

11. A positioner for the stack selector of a weft replenishing loom having a plurality of reserve bobbin stacks from which bobbins are to be selected for replenishing operations of the 100m, said positioner comprising a cylinder having an axial bore to receive part of the selector and said cylinder also having a plurality of transverse bores spaced longitudinally of the cylinder axis and radiating from the axial boreand angularly the cylinder has an angularrnovement.

tatable cylinder including a plurality of stops for the selector and means to give the cylinderstep by step angular movements," ayielding locking mechanism to hold the cylinder in a plurality of angular positions comprising angularly spaced elements on the cylinder, a support fixed with respect to the replenishing mechanism, a pair of spaced guide rods on the support, a cross member extending between the rodsand movable rela tively to and guided by said rods, and a compression spring surrounding each rod and located between the support and the corresponding rod, said springs holding. the cross member yieldingly against two of said elements and each spring yieldable independently of the other spring to permit independent movement of each end of the cross member relatively to its guide rod.

' MANUEL DANIELS.

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