US1519008A - Selvage-loop retainer - Google Patents

Description

J H. PURSER SELVAGE LOOP RETAINER Dgc. 9, 24,

Filed May l5, 1925 2 Sheets-Sheet 1 fNr/ENTOR eselo/v H 27a/'ser BY /mwf/ 77M@Mc ATTORNEYS D'ec. 9, 1924 J. H. PURSE R SELVAGE LOOP RETAINER Filed May 15, 1923 2 Sheets-Sheet' 2 JNVENTOR, Josep/7 h. Parser .LINDSAY S.

HALL, Gi@ LOS ANELES, GiLUTWTA SELVAGE-LOQP REEANEB.

Application ned Mey 15,

s ne for' propon n. ter-tile bony of is fl o the tiling; yarn puliing the th ds o tno Werpr .more cio.' "f against one another the edges than vf" in rubbericing duce, for use the menuectur-e of ties, the duela et the selvagge is too closely Woven to permit the rubber to ii'npregnate the fabric. The result is that the selvege .remains uneiiected by the rubber and must be out from the goods. This results in a. serious Weste of mets-rial. in weaving 'the fabric, the edge Warp yarns are crimped due 'to the pressure of the filling thereon and are under a strong tension. This causes n. Weel;- ening oi the fabric.. n

The r'primary object of 'this invention is to provide e. loop retainer which may be uttached 'to u power loom and will produce e loosely Woven selvage, thereby increasing, its strength ani ermitting rubberizing. Are other object off this invention is to provide e device oi the cha-meter described which will hold the i'iliing yarn et the beginning of the retuinniovement of the shuttle and until it has passed completeiy through the slied.

These objects together with other objects and corresponding accomplishments are obtained by ineens `et the embodiment of my invention illustrated in the accompanying drawing, in which.:

Fig. lis u perspective view of-Lso much/ot` zi loom es is necessary to illustrate the mounting of my improved retainer thereon; Fig. 2 is an enlarged perspective View of my-ixnproved retainer, a. fragment oi the loomV being shown to illustrte its mounting,r thereon; Fig. 3 is a. front elevation of the retainer; Fig. l is e perspective view show-- ing the tin of the Yingoiadisposed within the loop of the iiling in position to hold the sume; Fig. 5 is e side view of u fragment of 1923. serie?, ne. 639,061.

the retainer showing in full lines the retrected or released position of the finger and in dotted lines the advanced or holding position; (3 is a. diagrammatic view showing u. number ci' 'the 'werp yarns end the crimp formed et the sel'vuge by reason of the pull upon the illing in the course of weaving (lucir with the ordinary selvagge.

i'teiierring more particularly to the draw- 'aud especially to Fig. l, a side frame of .ein is indicated by l0. Spanning the rch ll. The loom beam i. is Wound is indicated y #n being liessed therei'roni over ss it end reed 15, over the breast A. iid about the sii-nd roiis 17. The shuttle bo.;` is indicate-.d by 1S. llounted upon t1 breast rail is stop l). The ley 2() supports the shuttle s in its travel. The usual temple is indicated. by 521. The structure just described is :i Well -znoivn plain loom und the parts just described are essentiel portions of uli looms. As the present invention is not dependent upoi'i the per-Y ticulur details ot any ot the moving parts other than those above referred to, the loom need not be further described.

The movement of the hzirness causes a shed to be formed through which the shuttle containing vthe filling is thrown, first toV one side and then to the other. Each time that the shuttle returns, u tension upon the outside Warp is produced equal to twice the tension upon the iilling Within the body of the iebrie, the filling being looped about 'the end threads-'i and uiled by the tension therein on. both sides. T e reed then beets the filling into piece end thereby orimps the outside Warp es indicated in Fig. 6. M loop re teiner relieves the tension'upo-n lili? filling upon its return. l "l Pivot-ally mounted at 22 upon the stop block 19 is a lever 23. Connected to post 2 upon the lever is e tension spring 25. A post 26 mounted upon the block limits the movement'of the lever in the direction in which the spring tends to turn the lever. Secured to the lever upon the other Aside of the pivot point is en'iirin 27 to which is pivotitlly 'connected en operating, arm 28 for moving the lever against the notion of the spring 25, This erin 'may be reciprocetted by :i cani or any other suitable mechanical mevement0 The lever is provided at its ai nii i3. `The Warp is passed through sides of the lever.'

upper end vv'ith an elongated slot 29 through which extends abolt 30. The bolt 1s secured to the lever by means of 'nuts 3l on opposite A 4wrist block 32 is loosely journalled upon the boltO and hasan extension 33. Secured to the extensional is the finger 34. The finger is provided with t an elongated slot 35 through Whi `h bolts'BG are passed so that the projection of the finger from the Wrist may be adjusted. There is enough clearance between the bolt/ and the Wrist bearing to permit rockingin a lateral direction'. The amount of rocking is limited by a yoke comprising a bracket 37, on which" is mounted an adjustable loop 38. The filling yarn will pull the tip of the finger so that Whenthe latter extends therethrough,

the finger restsfagainst one side of the yoke as shown in Fig.3. The'spring 39 tends to pull thev finger in the opposite direction against the other side of the yoke. A supgort/for the filling yarn comprises a. bar 40 aving a. raised portion il so that the filling yarn may be loopedA t-hereabout for a moment. The device operates in the following gaged the stop pin 26. Spring 39 holds the finger against the outer side of the yoke. The tip of the finger isbelow the filling. The

picking-stick then throws the shuttle to the` oppositeside, the filling looping about the finger as shown in Fig. 4. The tension upon,

the filling causes it to slip ofiI the extension '141 and to engage the tip of the finger as finger close to the outside Warp yarn.

' The finger takes all of the tension of 'thel filling atthe outside edge and'provides a' shown in Fig. 3. This causes the finger to be swung toward the edge of the fabricfand against the inside of the yoke. Upon the shuttle reaching the opposite side, theoperating arm 28 is raised thereby removing the tip of the finger from the loop .formed by the filling and the reed 'coming forward pushes the Warp outwardly against thelilling. The opposite side of the loom is pro- 4videdl With a similar motionl operating in valternation with the one j ust described. The

finger ispheld at the outside of its yoke, in order that when it is advanced toward.l the Warp, it will not be'liableto enter between vthe yarn. However, the filling'ean pull' the small-amount of slack, upon the finger beving removed, the reed pushing the vWarp against the filling. The result is that' a. loosev 'Woven selvage is formed, Due to the looseness of the' Weave at theselvage, the

i ,siaoos outside'warp yarn requires av different length for a given length of the Woven fabric than tlfeinner warp yarn. For this reason, the

outside yarns are fed from spools 42 mounted upon the arch. In the present instance, three spools are shown, although 'a greater -or lesser 'number maybe used depending upon the weightand texture-fof the fabric which is being Woven.

.Yhat I claim is: l. 'In a iooln having a shuttle, a loop re tainer comprising a.v finger disposed side of the warp and yieiding supported against lateral movements, means to advance said finger to a' position backof the filling so that the ieturn of said shuttle will loop said filling about said finger and to Withdraw said finger at 'the end of the` return travel of said shuttle.

2. In a loom having a. shuttle, a. loop retainer `comprising a. finger disposed at the side of the. warp aud yielding supported at the against lateral movement, means to advance said finger to a position back of the filling so that the return of said shuttle* vill 'loop said filling about said finger, andmeans to turn travel of said shuttle.

In a loomhaving a shuttle, a loop 'retainer comprising a finger mounted to be advanced to and to beretraeted from thev Warp at the side thereof, said'fingerbeing mounted to have a lateral movement, 'means tending to hold said finger laterally away from saidivarp, means toadvancesaid fin ger to a position back of "the filling so that the return ofsaid shuttle will loop said filllWithdraw said finger at the end of the re Y' u lil() ing about said finger and to Withdraw said finger at the end of the 'return travel .of said` shuttle. I l

4; In a loom having a. shuttle, a-loop retainer comprising ar finger mounted to he advanced to and retracted from the Warp at the side thereof, said finger beingvmounted tov have a lateral movement, means tending to hold said finge-1' literally awa-y from said Warp, means to advance said finger to a 'position back of the filling so that the return yof said shuttle will loop said filling' about said finger, and means to Withdraw said fine ger at the end of. the return travel of said shuttle.'y

q l V 5. In a loom having a shuttle, a loop retainer comprising a. fingerfmounted lto be advanced to and retracted from the Warp at the side thereof` said fingerbei-ng mounted to have alateral movement, resilient ymeans from said Warp, 'means to advancesaid filiger to a. position back of the filling so that the return 'of said shuttle' will loop said filling about 'said .finger and towithdraw said vfinger at the end-of the return' travel of said shuttle. l

6. in a loom havinga shuttle, a loopfre 'f tending to hold said finger laterally away feiner comprising a finger mounted tobe advanced to and to be retracted from the warp at the side thereof", means to adjust the projection of said finger, said finger being mounted to have a lateral movement, resihent means tending to'hold said finger laterally away from said wa. means to advance said nger to a position back of the filling so that the return of said shuttle will loop said 'fillin about said finger and to Withdraw said nger at the fend of the return travel of said shuttle.

7. In a loom having a shuttle7 a loop retainer comprising a. finger mounted to. be advanced to and retracted from the Warp at the side thereof, said finger being mounted to have a lateral movement, means tending to holdsaid finger laterally away from said warp, an adjustable yoke embracing said fin ger to limit its lateral movement, means to advance said finger to a position back of the filling so that the return of said shuttle will loo said fillingabout said finger and lo withdraw said finger at the end of the ,return travel of said shuttle.

8, In a loom having a shuttle, a loop retainer comprising ay finger mounted to be advanced to and retracted from the Warp at the side thereof, means to adjust the projection of said finger, said finger being mounted to have a lateral movement, resilient means tending to hold said finger later; allyv away 'from said warp, an adjustable yoke embracing said finger to limit its lati eral movement, means to advance said finger to a position back of the filling so that thc return of said shuttle will loop said filling about said finger and to withdraw Said finger at the 0nd of tlul return travel of said shuttle.

In witness that I claim the foregoing I have hereunto subscribed my name this 8th day of May. 1923.

JOSEPH H. 'PURSER

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