US2445129A - Thread control for weft replenishing looms - Google Patents

Description

July 13, 1948. R. G. TURNER THREAD CONTROL FOR WEFT REPLENISHING LOOMS 3 Sheets-Sheet 1 Filed May 21, 1945 nz/vsrdo/ R chard, 6.7mm

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' am. {7? W @QiiO new R. G. TURNER July 13, 1948. I 2,445,129

" THREAD CONTROL FOR WEFT REPLENISHING LOOMS I Filed May 21, 1945 5 Sheets-Sheet 2 y 1948 R. G. TURNER 2,445,129

THREAD CONTROL FOR WEFT' REPLENISHING LOOMS 3 Sheets-Sheet 3 Filed May 21, 1945 Patented July 13, 1948 THREAD CONTROL FOR WEFT RE- PLENISHING LOOMS Richard G. Turner, Worcester, Mass., assignor to Crompton & Knowles Loom Works, Worcester, Mass., a corporation of Massachusetts Application May 21, 1945, Serial No. 594,925

23 Claims. 1

This invention relates to improvements in weft replenishing looms and it is the general object of the invention to relate the bobbin magazine and thread control devices in such manner as to improve the operation of the loom with respect to the weft ends of the reserve bobbins and also the threads of both the incoming and the outgoing bobbins which are involved in a replenishing operation.

In the past it has been customary to provide a magazine in which the reserve bobbins have interfere with threads extending from the reserve bobbins in the magazine to a thread holder located their'weft ends led outwardly away from the center of the loom to a thread holder and provide additional means between the magazine and the fabric for removing weft ends which are left incident to a replenishing operation. With such v an arrangement the thread of a freshly transerations. Furthermore, when the thread holder is at the outer end of the loom, some difliculty has been experienced in controlling the path of the thread or weft ends as the latter move downwardly in the magazine toward transfer position. It is an important object of my present invention to locate the thread holder between the magazine and the center of the loom and lead the weft ends from the bobbin tipsinwardly toward the thread holder. In this way the "thread of the incoming bobbin subsequent to transfer does not extend under the magazine and therefore cannot interfere with subsequent transfers.

In weft replenishing looms as made heretofore it has been customary to provide two different mechanisms, one to control the thread extending from the incoming bobbin and the other to control the thread leading t the outgoing bobbin. These two mechanisms are ordinarily on opposite sides of the magazine, the first being a thread between the magazine and the center of the loom, and in order to avoid this interference it is a further object of my present invention to provide means for supporting the magazine at the outer end thereof, thereby leaving a free uninterrupted space around the inner end of the magazine for the weft ends of the bobbins in the magazine. In this connection I also provide means for mounting the bobbin transferrer arm so that it is supported near the outer end of the magazine where it will not interfere with the aforesaid weft ends. In order to effect correct threading of th shuttle subsequent to a transfer operation it is desirable to locate the thread holder in a position somewhat to the rear of the lay when the latter is on front center. .When so located, however, the usual mechanisms employed to place the thread of the outgoing bobbin for removal would be ineffective, since such mechanisms ordinarily are located in front of the lay. It is a further object of my invention to provide thread controlling mechanism having an intake mouth or the like correctly located for the thread holding function thereof, and in addition provide a thread placing mechanism which will move the thread of the outgoing bobbin upwardly and then rearwardly toward the intake mouth. This latter feature of my invention lifts the outgoing thread over the back of the shuttle box to the aforesaid holder on the outer end of the magazine and the second being .a thread remover on the inner end of the magazine. It is another important object of my present invention to combine these two mechanisms and locate them adjacent to the inner end of the magazine between the latter and the center of the loom and in such a position'that all the weftends of thereserve bobbins and the thread of the outgoing bobbin can be led tov a common point abovethe lay. As shown herein Lutillze'a pneumatic thread controlling device having a single inlet mouth which receives all of the previously mentioned threads.

The usual magazine has a sup-porting foot secured to the. loom frame and connected to the inner. end of the magazine, Such a'ifoot would single intake mouth.

When pneumatic thread holders are used in the conventional position beyond the magazine it is frequently difficult to detach the thread of a transferred bobbin from the reserve bobbin weft ends entering the intake mouth so that it can'be drawn into the latter when out at the selvage. It is another feature of my invention to locate the intake mouth in such position that the weft ends of the reserve bobbins and the thread of the transferred bobbin immediately after transfer apmouth but can enter the latter freely for'eifective removal.

With these and other objects in view which will appear as the description proceeds, myin' ventionresides in the combination and arrangement of parts hereinafter described and set forth.

In the accompanying drawings, wherein aconvenient embodiment of my invention is set forth,

Fig. 1 is a side elevation of part of a loom having my invention applied thereto, parts being in section,

Fig. 2 is an enlarged front elevation looking in the direction of arrow 2, Fig. 1,

Fig. 3.is a plan. View .looking in .the direction of arrow 3, Fig. 2,

Fig. 4 is a side elevation on a reduced scale looking in the direction of arrow l, Fig. .2, the shuttle and lay being in section,

Fig. 5 is a detailed vertical section on line" 5'-5 of Fig. 3 on an enlarged scale,.

Fig. 6 is a reduced plan partly in section of the breast beam of the loom and the extension which supports the magazine looking in the directionof arrow 6, Fig. 2, V

Fig. 7 is an enlarged vertical section. on-line 1-! of Fig. 3 showing the mechanism for moving-t'he thread of the outgoing bobbin toward the intake mouth of the thread.controlmechanism,

Figs. 8 and 9 are diagrammatic views showing successive positions of the thread placer shown in Fig. 7 as the thread of the outgoing bobbin is lifted to the thread intake mouth, and

wFig'. 10 is a diagrammatic view showing two threads extending from the selvage tothe thread holder, one thread corresponding to an incoming bobbin and the otherto an-outgoing bobbin.

Referring'to Fig. 1, I have shown a loom frame I0, lay H, top shaft I2, lay connector I3, air pump Hi and a lever l5 operating the air pump by means of a connecting rod lfiattached to the lay. A pipe or air conduit l1 extends forwardly from the. pump and the latter operates during the rearward strokes of the lay to create subatmospheric pressures within the conduit. The lay has a'shuttle box l8 to receive a shuttle S which Fig. 2, the upper end of which is provided with a hub 36 through which passes a tubular pivotal support 31 for the magazine. The tube 31 is clamped in fixed position on the hub 35 by bolts 38.

The magazine comprises inner and outer bobbin guiding plates 40 and 4|, respectively, connected together by tie rods 42 and rocking as carries a weft bobbin B. The lay reciprocates between front and back center positions in usual manner due to rotation of shaft l2, and. the shuttle is ordinarily picked when the lay is about atmthe mid point-in its backward stroke. The

.loom;frame [0 includes in .itsi'construction a breast beam I9 which maybe formed of angle iron or the like as suggested in the left hand part of Fig. 6.

A rocking mechanism. designated generally at has a:depending rod 2! controlled by mechaprovide :means for supporting the magazine 'M adjacent to the outer end thereof sothat there may be a free spacearound the. inner end of the magazine for threads which leadto thread control mechanism located between the magazine and the center of the loom. The previously mentioned breast-beam has a horizontal web 25 and a depending web '26 which isto the rear of. the web 25. In order to provide a support for the magazine M I weld or otherwise secure. aplate 213 to the breast beam l9 and secureito said plate a support or angle iron 28 which in effect is a continuation of. the breast beam. Support ZS has a depending flange 29 and a horizontal top plate-3D. The support 28 is made sufficiently strongto support the magazine and parts associated therewith and the vertical flange 29 is dis-:'

posed at the front of the support'for. reasons which will appear presently.

Secured .to. the support '28 is: a stand: 35;.1see:

eitherof two operating positions.

a unit about the tubular support 37. The previously mentioned forwardly extending rod 22 is connected as at 43 to the inner plate of the magazine so that the latter may be rocked to assume The inner plate is is provided with guideways 44 for the heads of reserve bobbins W, while the outer plate ti is provided with similar but narrower guideways 45 for the tips of the bobbins W. The bobbins are arranged in two groups as indicated in Fig. 4 and feed downwardly by gravity toward transfer position, each stack having-its own transfer position and the magazine rocking so that the lowest bobbin of either stack maybe brought to transfer position.

The inner plate 40 of the magazinewmay be formed substantially as shown in Fig. 4. and has front and back smooth thread engaging-surfaces 5i] and 5!, respectively, which are connected: at their lower ends by a thread engaging surface 52. These three surfaces 50, 5| and 52 arecontinuous so that they offer no interruption'to the downward movement of the weft ends or threads T extending from the bobbins W.

It will be apparent from Fig. 3 that the threads T, instead of being extended to the 'right'as'is usual, extend toward the left or .towardthecenter of the loom from the tip ends of the-bobbins and extend around the surfaces 50 and-5! .to athread holder designated generally at H. This holder is of the pneumatic type and has: an intake mouth 53 which opens toward the center of the loom.

The thread holder is formed preferably .of-a metal tube 55, the upper end of which is formed with a head 56 secured to the left end of a-hollow tubular support 3'! by a set screw 51, asindicated in Fig. 2. The thread intake mouth 53 is aherefore in pneumatic communication with thetinterior of the tubular support 31. Thelatterfis extended beyond the hub 36 and has supported thereon a thread collector 5B, the. upperqend' of which is connected to the previously described conduit or pipe I1. The thread collectorv is a closed chamber and may be made according to my aforesaid patent except for the manner. of its mounting. During each backward stroke of the lay subatmospheric pressures. are created within the thread collector. 58. and the tubular support 37, therefore creating an inrush-of air a horizontal extension 6| fromuthe left end of whichas viewed in Fig. 2 depends a hammer-1B2- for engagement with the butt ends of the bobbins. A bobbin tip guide63 may also be extended downwardly from the extension 6|. Theitransferrer armhas a hub 64' which is secured. to a shaft 65, and a "relatively heavy coil-lspring fifi surrounds the hub": 64 and has one end th'ereofoperatively engaging: the. transferrei armand has the'other end thereof held in fixed position with respect tothestand 35. -The latter is provided with a hub 81 which.apr-ovides: ample support for-shaft 65. The latter'a'nd the transferrer arm are'secured together and therefore move an-gularly in unison, andthe spring 66 acts in the usual manner j to'hold the :transferrer arm normally raisedasin'di-cated in Fig. 1.'

As viewed in 'Figs.-2 and 3 the shaft-fili'extends to the left fromthe transferrer arm a'nd passes through'and is rotatable in a bearing 19 mounted on the support 28. latch arm 1| is secured to sha-ft 65 and'a transfer latch 12"is pivoted thereto as at 13. The latch is normally down as shown in Fig; 4, :but can be raised by a lifter 14- When the transferrer latch is lifted itwill be engaged by the hunter on the advancinglay and moved forwardly or to the left as viewed in Fig. 5

to rock-shaft 85-in-a clockwise direction,therebyv depressing thetransferrer arm to effect transfer of-the bobbin under -'it.-

W l l At the'time of transfer a" thread T will extend from the shuttle in the box [8 toward the center of the loom; and in order to prevent this'thread from being drawn into' the warp shed-I provide means to lift itto a point adjacentthe intake mouth 53.- This mechanismcis shown in Fig. '1; and comprises an" arm 88 secured to -the inner end of the shaft 65' and extending rearwardly therefrom.- This arm is adapted for engagement with alever'8l' pivoted as at 82to a small stand- 83 fastened preferably to the -breast beam l5. Lever 8| has "an upper arm .84 for engagement with the'under'side of the arm 80, and has also a-lower arm 85 which is pivoted as at'86 to a floating thread placer 81. The forward end of the latter is provided with a roll 88 which slides ina cam groove 89 formed in-a cam plate-9D secured'to the breast beam. The rear-end of the placer 81 may. be notched'as at 9|- to receive threadT" and lies-normally under the shuttle race 92, thelay-bei-ng provided with a transverse groove 93for this purpose. The groove 93 leads rearwardly to a vertical-box back 94 secured to the lay and formingpart of the previously described shuttl'ebox l8. A- spring'95 normally acts to hold the placer 81in forward position. or in the full line position asshownin Fig. 7.

At the time of atransferring operation arm 80 is depressed as shaft 65 rocks and engages the upper arm 84 of lever'8l, rocking thelatter in a counter-clockwise direction as viewed-in Fig. 7 and moving the threadplacer 81 rearwardly or to the right. This occurs. during the latter part of the forward movement of the layon a replenishing beat of .the 'loom,-and thegroove 89 is so formed as to causethe .rear end of the thread placer 81 to traverse'the :path designated'by'dot' and dash-lin'e a in Fig. .7; This path of the rear I in 'the pneumatlc ithread removing isystem land the'thread THwill be drawn into the mouth 53, having previously been cut at a point adjacent to the shuttle eye by well-known means not shown. The right end'of groove 89 is so formed that the notched end 8| of the thread placer 81 will move across the intake mouth 53 and hold the thread- T in position where it can be attracted by the pneumatic thread holder during the first part of the upward movement of the transferrer arm as the lay begins to move rearwardly subsequent to completion of atransferring operation.

.Figs. 8 and 9 indicate diagrammatically the successive positions which the thread placer 81 and notch 91 move during a thread placing operation. :During the first part of the operation the placer 81' passes through the positions vI,-II, and III, Fig.8, lifting the notch 9lalong the front of box back 94. As the operation. continues through positions IV, V and VI, Fig. 9, the notch rises over-and passes behind wall 94, ultimately reaching the position shown in dotted lines, Fig.7.

Under normal operation the lay reciprocates backwardly and forwardly and the transferrer arm and latchx12 remain in idle position, thread placing operation arm is up, and the thread placer 81 is down as in full lines, Fig. 7. Drafts of air are drawn intermittently into thethread holder H to create tension in all of the weft ends or threads T extending from the reserve bobbins in themagazine. When atransferring operation is indicated by mechanism not shown herein but well understood, the lifter 14 will raise the latch to operating position and as the lay advances the transferrer-arm will descend as already described, and arm 88 will also be lowered. As a transferring operation proceeds the thread placer B1 is raised as already described and moves the thread T upwardly and then rearwardly with respect to the box back 94 toward the intake mouth 53. During transfer the bobbin W under the transferrer arm moves into shuttle S and its thread descends. After. the transfer operation is completed the lay moves rearwardlyand the replenished shuttle is picked. The thread attached to the freshly inserted bobbin in. the

shuttle extends along the under surface 52 of the inside plate 40 and then upwardly to the intake mouth. As the shuttle is picked it moves to the left as viewed in Fig. 2 or in a general direction toward the. intake mouth and the slack thus created in the thread extending from the fresh bobbin is drawn into the thread holder. As the shuttle passes the thread holder thread begins to unwind from the bobbin and in doing so becomes at leastpartially threaded in the trailing end of the shuttle. The-shuttle will be made in usual manner and will be provided with a selfthreading eye.

That part of the thread T which is adjacent to the selvage of the cloth and was attached to the outgoing bobbin will extend upwardly from the selvage to the intake mouth and on the first beat-up after transfer'the thread T and the thread of the freshly transferred bobbin will both extend from the selvage to the thread holder.

The usualform. of temple cutter, see Fig. 10, will serve to out these threads on some subsequent forward beat of the lay, whereupon they will both be drawn into the thread holder and move through the tubular support 31 to the thread collector or accumulator 58, where they will be held asdescribed in my Patent No. 2,199,353.

Fig.- 10 indicates diagrammatically an advantage growing. out of a pneumatic. thread control system having a common mouthior the threads of both :the outgoing and the incoming bobbins.

Certain types of coarse weft are .hairy .and tendto cling to each other due to projecting fibers. When .weaving with such yarns the threads of boththe outgoing and incoming bobbins may be matted together during cutting .at the selvage and become in effect a single strand. When the thread remover and the thread holder have separate mouths as in constructions heretofore proposed the ends of the strand are. pulled in oppo site directions by the remover and holder, and

neither .of these devices is able to .remove the strand from the loom. This condition cannot occur with my present .invention.v

Referring to Fig. 10, the .fabric F has extending therefrom one of the threads .T which was connected .to the incoming bobbin and also thread T which was connected to the outgoing bobbin. The cutter mechanism C close-to the .selvage operates to cut these threads several picks after transfer, and during cutting both of these threads may be matted together, as indicated at K. It will be understood from Fig. 10, however, even if these threads do cling together they will be drawn into the intake mouth 53 and effectively removed from the loom because of the fact that a single intake mouth is provided for both threads.

Another feature of the invention will be apparent from a consideration of Figs. ,2 and 4. The weft ends of the front stack of bobbins enter and extend along .the right hand side of the intake mouth 53 as shown in Fig. 4, while the weft ends of the rear stack of bobbins enter and extend along the back part of the mouth 53. When a bobbin is transferred from one or the other of the stacks, the shuttle S will be under the magazinc and to the right of the intake mouth 53 as viewed in Fig. '2, but during picking the shuttle will pass by the intake mouth to the left and thereby draw its thread after it. Prior to picking the thread of the transferred bobbin may be caught under one or another of the Weft ends of the group corresponding to it, and this thread along with the weft ends will approach the intake mouth in a direction toward the fabric; or

fromthe outer end of the lay, but during-picking and due to motion of the shuttle the thread will be detached from its group of weft ends and have its direction .of approach to the mouth reversed and extend toward the intake mouth in a direction away from the fabric. When this thread is later cut at the selvage by the cutter C, Fig. 10, it can be drawn readily into the intake mouth 53 because it is free from the weft ends in the mouth and will not be entangled by them.

From the foregoing it will be seen that I have provided an improved form of thread control for weft replenishing looms wherein the thread holder is located between the magazine and'the loom so that the thread of a freshly transferred bobbin will not extend under the magazine. This is of particular importance in multicolor weftre-- plenishing looms in which successive transfers can occur, the later transfer occurring before the thread-of an earlier transfer has been cut at the selvage and removed :by the threadholder. ,It will also be seen that the thread extending from the thread holder lies along a path to the left of the shuttle boxes viewed in Figs. 2 and 3 and therefore will not become entangled with any parts of the shuttle box as the lay reciprocates. Furthermore, the transferrer arm is located adjacent to the outer end of the magazine and: therefore does not interfere with: the weft ends extending from thecre'serve bobbins-42o the *threadholder. The "thread placer 81 operates not "only tolift the thread-of the outgoing bobbin but also moves it "rearward'ly withrespect to the box back 94 toward the'iintake mouthi53. This latter provision is desirable "because -it is of importance to have the thread Fholder located far enough behind the-flay when the :latter is :onfront center position to effect at Eleast partial self-threading of the-shuttle the pick immediately following areplenishing operation; It :will also be noted that when the shuttle :is pickeditreverses the direction of approachof the weft .end of the transferred bobbin with :respect to the intake mouth 53, and in doing 'so detaches this thread from the ,gr'oup corresponding :toit so that upon subsequent cutting. at the selvage the t-hread can be drawn into the month without interference by 'the other threads which approach the mouthfrom a different -:d-irection.

Having thus :desoribedmy invention :it will .be seen thatchanges and -modificationsmay be :made therein by those skilled in the art without departing from the spirit and scope of the invention andI .do not wish to be limited to the details herein disclosed, ibut what I claim is:

1. .In a weft '.-replen-ishing-'loom wherein a replenishing operation leaves-two threads to be removed, one from the outgoing bobbin and the other from the incoming bobbin, and wherein provision :is' vmade :for cutting both of these threads at the selvazge, a pneumatic thread control mechanism having an intake mouth into which *one end .=ofthe thread of the incoming bobbin normally extends, means incident to a weft replenishing (operation to-move the thread ofthe outgoing bobbin to a-point adjacent to said intake 'mouth, and means toiinduce a draft .of air into said intake mouth to draw both-of saidth-readsinto sa-id'mouthwhensaid threads are cut at the selvage.

2. In a weft replenishing loom wherein a thread-corresponding to the incoming bobbin and another :threadcorresponding to the outgoing bobbin remain for removal incident {to a replenishing operation, a pneumatic thread-control device in which subatmospheric pressures exist and having an intake 'mouth the thread-of the incoming bobbine n'ormally extending into said-mouth; thread placing means operating incident to a replenishing operation to move the thread corresponding tothe outgoing bobbin-to a point adj acentto-isaid intake mouth, and means to out said threads at the selv-age subsequent to operationiofsa-id thread placing means.

3. Inawefi; replenishing loom-"in which two threads extend from the selvageisubsequent'to a replenishing operation, one ofsaid threads corresponding to 'theincoming bobbin and the other at a :point adj acentto "the selvage', rapneumatic thread controller in which suba'tmospheric pressures exist and having an intake :mouth' intowhich' the thread of the incoming bobbin normally extends, and means operativefincident to a replenishing Lopereition of the 10cm to move the thread of the =outgo'in'g bobbin' lto la point-adjacent to said sintakemouth.

4; In a weft replenishing loom wherein two threads extend from the sewage subsequent to .a replenishing. operation, one *ofsaid threads corresponding toet'he incoming zbobbin and'the other thread-corresponding tc the outgoing bobbin, the loom having iprovision :for cutting both of said threadecorresponding to theout'going bobbin, the loom having. provision for cutting .said threads threads adjacent to the selvage'and said threads being of such nature ascauses them to tend to cling to ,eachother as a result of the cutting operation, a single pneumatic thread removing mechanism; in which subatmospheric pressures exist, said mechanism-having an intake mouth into which the thread corresponding to the incoming bobbin normally extends, and means to move the thread corresponding to the outgoing bobbin to a point adjacent to said intake mouth prior to cutting of said threads at the selvage.

5. In a weft replenishing loom having a pneumatic threadjremoving system in which subatmospheric pressures exist, said system including an intake mouth into which extends one end of a thread corresponding to the incoming bobbin involved in a replenishing operation, the loom having a second thread corresponding to the outgoing bobbin involved in said replenishing operation and having also means for cutting both of said threadsadjacent to the selvage, and mechanism operating incident to said replenishing operation to move the thread corresponding to the outgoing bobbin to a point adjacent to said intake mouth prior to cutting of said threads at the selvage.

6. In aweft replenishing loom having a lay provided with a shuttle box from which a thread extends to the adjacent selvage incident to a replenishing operation, a pneumatic thread remover having an intake mouth into which air is'drawn, said mouth being located above and behind the shuttle box during a replenishing operation of the loom, and means operative during a replenishing operation of the loom to move said thread upwardly to a point above said shuttle box'and then rearwardly to a point adjacent to said intake mouth.

"7."In a weft replenishing loom having a lay provided with a shuttle box-from which a thread extends to the adjacent selvage incident to a replenishing operation, a pneumatic thread remover having an intake mouth into which air is drawn, said mouth being located above and behind the shuttle box during a replenishing operation of the loom, athread placer normally located under said thread, and means operative ,at the time of a replenishing operation of the loom to cause said placer to move the thread over and rearwardly with respect to said shuttle box to a point adjacent to said intake mouth.

'8. In a weft. replenishing loom having a lay provided. with a shuttle box from which a thread extends to the adjacent selvage incident to a replenishing operation, av pneumatic thread remover having an intake mouth located above and behind the shuttle box during a replenishing operation of the loom, a thread placer normally under said thread and located between the shuttle box and the selvage, and means operating incident to a replenishing operation to cause said thread placer to move a portion of that part of the thread extending between the shuttle box and the selvage upwardly and rearwardly with respect to the shuttle box to a point adjacent to said intake mouth. I

9. Inaweft replenishing loom having a reserve bobbinfrom which a weft end extends and wherein said weft end and an additional thread extend fromand are cut at the selvagesubsequent to a replenishing operation involving said bobbin, and a combined thread holder and thread remover in which subatmospheric pressures exist, said combined thread holder and remover having an. intake mouth, into which said weft end ex- 10 tends and to which said additional thread is presented incident to a replenishing operation to enable said combined thread holder and remover to control both the weft end and said additional thread subsequent to cutting thereof at the selvage.

10. In a weft replenishing loom having a reserve bobbin from which a weft end extends, said weft end and an additional thread extending from and. being cut at the selvage subsequent to a replenishing operation involving said bobbin,

a combined thread holder and thread remover in which subatmospheric pressures exist and hav ing an intake mouth into which said weft end extends, and means moving said additional thread to a point adjacent to said intake mouth incident to said replenishing operation and prior to cutting of said weft end and thread at the selvage, whereby both said weft end and said thread are drawn into said combined thread holder and remover subsequent to cutting thereof at the selvage.

11. In a weft replenishing loom having a reserve bobbin from which a weft end extends, said weft end and an additional thread extending from and being out at the selvage subsequent to a replenishing operation involving said bobbin, a pneumatic thread collector in which subatmospheric pressures exist, a pneumatic combined thread holder and thread remover pneumatically connected to said thread controller and having an intake mouth into which said weft end normally extends and to which said additional thread is presented incident to said replenishing operation, whereby both said weft end and said additional thread are drawn into said intake mouth and to said thread collector.

12. In a weft replenishing loom provided 'with a reserve bobbin magazine having an inside bobbin butt guiding plate and an outside bobbin tip guiding plate and in which reserve bobbins extend between said plates and move downwardly to a transfer position, a pneumatic thread holder having an intake mouth located between said .inside plate and the cloth in the loom, and'means on said inside plate defining an outside smooth thread guiding surface, the weft ends of the bobbins leading from points adjacent to said outside plate around said smooth surface of the inside plate to said intake mouth and moving down said surface as the bobbins descend.

13. In a weft replenishing mechanism having two stacks of reserve bobbins and having an inside plate to guide the butts of said bobbins and having an outside plate to guide the tips of said bobbins, a pneumatic thread holder having an intake mouth on that side of the inside plate opposite to the outside plate, and means on opposite sides of said inside plate defining smooth uninterrupted yarn guiding surfaces, one of said surfaces for each stack of bobbins, the weft ends of each stack of bobbins leading from'their tips around the corresponding smooth surface to said intake mouth.

14. In a weft replenishing loom provided with a magazine having a stack of reserve bobbins the butt ends of which are toward the center of the loom and the tip ends of which point away from the center of the loom, an inside plate to guide the butt ends of said bobbins as the latter move downwardly to transfer position, an outside plate to guide the tips of the bobbins, a pneumatic thread holder having an intake mouth between said inside plate and the center of the loom, and means on said inside plate defining a 11 smooth' yarn engaging surface, the weft ends extending from the tip ends of the bobbins inwardly toward said inside plateand around said smooth surface and then to said intake mouth.

15. In a weft replenishing loom having a frame, a magazine for reserve bobbins comprising an inside plate adjacent to the center of the loom and anoutside plate remote from the center of the loom, means to support the outside plate with respect-to said frame, other means to support saidinside plate from said outside plate, and a pneumatic thread holder supported by the magazine and having an intake mouth located between said inside plate and the center of the loom, said inside plate" having a free space entirely surrounding the same so that weft ends leading from bobbins in the magazine-to said intake mouth can move downwardly uninterruptedly from the top to'the bottom of the magazine as their respective bobbins descend in the magazine.

16. In a weft replenishing loom having a frame and operating with two stacks of reserve bobbins, a magazine having an inside plate to guide said bobbins and located adjacent to the center of the loom, an'outside plate forming part of the magazine and 'spacedfrom said inside plate in a direction away from'the center of the loom, means to support said outside plate with respect to said frame,other means to support said inside plate fromsaid outside plate, and a pneumatic thread holder having an intake mouth located between said inside plate and the center of the loom and supported by said inside plate, whereby a free space exists entirely around said inside plate for the passage of weft ends from either of said stacks to said intake mouth.

17. In a weft replenishing loom having a group of 'weft ends, a pneumatic thread holder within which 'subatmospheric pressures exist having an intake mouth opening toward the fabric in the loom,'and a shuttle having a thread extending therefrom, the weft ends and thread approaching the intake mouth in a direction toward the fabric inthe'loom and entering the mouth, the shuttle after being picked in a direction toward the fabric causing the thread to approach the mouth ina direction from the fabric toward the mouth.

18."In a weft replenishing loom having a reserve bobbin magazine from which weft ends extend, a shuttle under the magazine having a thread extending therefrom, and a pneumatic thread holder in whichsubatmospheric pressures exist having an intake mouth which the weft ends and thread approach in a general direction toward the fabric in the loom, the shuttle when picked .in'a direction away from the magazine and toward the fabric reversing the direction of approach of said thread to the intake mouth and causing said thread to enter said mouth in a direction from the fabric toward the mouth.

19. In a weft replenishing loom having a magazine from which weft ends extend, a shuttle under the magazine from which a thread extends, and a pneumatic thread holder in which subatmospheric pressures exist having an intake mouth intermediate the magazine and the fabric in th'eloom, th'e weft ends and thread prior to pickin-gof theshuttle approaching said intake mouth in directions from the magazine and shuttle toward the fabric, the shuttle subsequent to pickingicausing reversal in the direction of approach of the thread toward said mouth.

20; In a weft replenishing loom having a reserve bobbin? magazine from which weft ends extend, a shuttle under the 'magazine having a 12 thread extending therefrom, and a; pneumatic thread holder in which-subatmospheric pressures exist having 'a'n intake-mouth located intermediate the shuttle and fabric? and toward which the we'ft ends and thread'approachin a direction toward the fabric, the shuttle incident to picking thereof passing said iIitake'mouth and causing a reversal in the direction or approach of'said thread-towardthemouth;

21'." In aWeftreplehishingloom, a pneumati'c thread holder within which subatmospheric pressures exist having'an' intake mouth opening toward the fabric in the loomythe loom having a group-of weft ends approaching'the mouth'in a 1 direction toward the fabric and entering the latter, and a shuttle having-a thread extending therefrom approaching said-mouth in the general directionof approach'of said weft ends and entering said I mouth, the shuttle when picked toward-the fabric moving said'thread therewith and causing the latter to approach said mouth in a-direction'from the fabric towardthe mouth.

22. In a'weft'replehishingloom having a maga zine with'reserve bobbins from which weft ends extend; a shuttle under the magazine having therein a bobbin freshly transferred from the magazine and from which a thread-extends, and a pneumatic threadholder within which subatmospheric' pressures exist having an intake mouth receiving said weft ends and thread between the magazine'and fabric and toward which said weft ends-and thread approach ina directionfrom the magazine'towardthe cloth, the shuttle -when" picked from under the magazine toward the fabric-drawing said thread therewith and causing the same to enter said mouth in a direction from the fabric toward the magazine. 23. In a weft replenishing loom having a selva'ge cutter and amagazine with reserve bobbins from which'weftends-exte'nd, ashuttle under the magazine having therein a bobbin freshly transferred from the .imaga'zine and from which a thread'extends, and apneumatic thread holder within which subatmospheri-c pressures exist having an intake mouth receiving said weft ends and thread between "the magazine and fabric, the shuttle'when picked from under the magazine toward the fabric drawing said thread therewith and-causing the same toentersaid" mouth in a direction from the fabric toward the magazine, and said thread when cut by'the selvage cutter enteringthe intake mouth in'a direction opposite to that in whichthe-weft ends approach the mouth:

RICHARD G. TURNER.

REFERENCES CITED v The following references are of record in the file of this patent:-

UNITED STATES PATENTS

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