US987817A - Misthreading device. - Google Patents

Description

J. NORTHROP.

MISTHREADING DEVICE.

APPLIGATION FILED JULY 12, 1910.

Patented 111211228, 1911.

Y 2 SHEETS-'SHEET 1. E y 2 /6 A /g J. NORTHRUP.

MISTHREADING DEVICE.

APPLIQATION FILED JULY12,1910.

Patented Mar.28,191l1.

" z SHEETS-SHEET 2.

- 7165566: @M )u M 7072@ TOM/7270])- Uhllllhl@ 'llliilll@ lEl-hlhililll JONAS NORTHROP, OF EOPEDALE, MASSACHUSETTS, ASSIGNOR T CLARE I-I. DRAPER,

OF HOPEDALE, 'MASSACHUSETTS MISTHREADING DEVICE To all @hom 'it may concern:

Be 1t known that I, Jonas Nonrnnor, a citizen of the United States, residing al Hopedale, in the county of llVorcester and specification, like letters on State/of 'Massachusetts, have invented an 'Improvement in Misthreading Devices, of

which the following description, inconnection With the'accompanying drawings, is a the draivings representing like parts.

The invention to be hereinafter described relates to looms, and more particularly to looms of the filling replenishing type ,Wherein at. desired times a fresh supply of filling is automatically' furnished.

In looms of the above general type Vfilling carriers are transferred from an appropriate supply into the shuttle when the latter is to be replenished and is'in proper position for such operation." It happens at times, following the action of replenishment, that the tilling becomes broken at the moment of .transfer or prior to the arrival of the shuttle in the boi; on the side of the loomremote fromi the replenislnng mechanism; or that a. like condition a 1ises on the return of the shuttle to the repllznishiug side, especiallyY Where the shuttle fails to be properly threaded following replenishment. Therthe filling breaks under the first of the above conditions, which is technically known in the art as a hopper misthread and Which for concis"- ness of description Will hereinafter be thus designated, a new supply ot filling has heretofore been furnished the shuttle on its re turn to the replenishing side. Obviously should a number of hopper misthreads occur in succession, the transfer of iilling carriers to the shuttle lmight continue until linally the supplying means would become .exhausted Where the filling 'breaks under theshuttle directly backward to the cloth selvagge vas the sliiitt-lfe travels through the shed, so that the filling cannot unwy'ind from theearrier-and breakage necessarily occurs. This/is technically known in the art as a real misthread and for brevity suchgcondition'vvill hereinafter be designated by such term.

Specification of Letters Patent. atgnjled ligar. 28, 1911.* Application led July l2, 1916. Serial No. 571,590.

To prevent exhaustion of the .filling carrier supplying means on the occurrence of a succession Aot hopper mistlireatls.at tempts have heretofore been'made to stop the loom on the occurrence of tivo of such faults in succession, but in all ot such casesl should intact filling b e laid once on a detecting pick following a misthread the parts were returned to initial position, so that to eiect stoppage of the loom thereafter' two 'successiveabsences of filling were required, lwith theresu'lt that stoppage for a real misthreadl ivas precluded, and the loom would continue to operate until the hopper became exhausted and a length of cloth had I been Woven with thin places therein. '1

lilith these facts in mind the present invention aims among other things to provide means whereby if filling is absent on two alternate detecting beats, the loom Will stop regardless of Whether filling is present or `not on the intermediate beat; ,These` and other objects ot the invention Wnieh will he `more 'fully developed herein, -will best he understood from the following `description and aceompanaying drawings of one torni of means for carrying the inventioninto practical effect.

In the drawings :QFigure l is a plan view ot so much of one side of a loom embodying the present invention as is desirable to show the relation ot the invention to its coacting parts; Fig. 2 is a section on the line Qd,

Fig. l; and Figs. 3, 4, 5, G, 7, 8 and 9 are detail views showing various positions assumed by the rider and its immediately associated parts under rvarying conditions of the filling to be herein described.

. The loom frame including the breast .beam l, lay 2, shuttle box 3, the shuttle fl,

the transverse shaft 5, and its supporting brackets 6 Which afford bearing therefor may all be of any usual or Well known character and construction.' The filling" ,replen-` ishing mechanism, which is contrplled as to its replenishing action from the transverse shaft44 5, is not herein shown, as its various appropriate forms and its location at ,that

construction new ivell known, whereby upon'l 'side of the loom remote'from the detecting turning movement ofthe transverse shaft 5, devices are put in position to cause said mechanism to replenish the lling-inlthe shuttle when the latter returns to the replen-v ishing side following detection of .lling fault. Une appropriate form of such mech-'- anism is shown and described in my application, Ser, No. 516,240, led September 4, 1909, but it is understood that I do not restrict my invention to such form of replenishing means, as it may be'emplo'yed with any desired character of devices which upon indication for replenishment will effect the necessary transfer.

Mounted on the .transverseshaftis an arm 7 jointed at 8- to an actuator 9 having a part 10 adapted to beengaged by the weft hammer 11, which is itseltmoved in usual manner, well understood by those skilled in the art', to cause theactuator 9 to travel to the right, Figs. 1 and 2, or toward the front of the loom, when said actuator,-`during the detecting beat-up `of the lay, has its end 12 sustained by the arm 13 of the Wett fork 14, which ails'to be tilted upon an absence .of filling. Secured to. the breast beam `1 is a bracket 15 having the fixed supporting arms 16 projecting vrearwardly which ksupport, the pivot 15x ofthe weft fork 14. A `spring17V having one end connected to the transverse' ,shaft 5 and the other end fixed to the loom trame, normally acts to hold the said shaft lvviththe parts'in position asindicated by 1 and 2, but, upon movementlof the actuator 9 to the right, Figs. 1 and 2, or toward' the front of thev loom, by the weft hammer, permits said shaft to turn underthe action 'of the arm 7 The parts thus far described with respect to the detecting mechanism may be substantially as in my prior application, Ser. No. 516,849, filed September 9, 1909, the coni struction being such that should filling not 'be laid by the shuttle as it passes .to that side of the loom remote from the replenishing mechanism, the following beat up movement of the lay, which for identification may be herein known as the detecting beat, will fail to tilt the lling fork, so that the actuator 9 will be sustained by the said fork and, as the weft hammer moves to the front orto the right, Figs. 1 and 2, it will engage and move the actuator, with the resultthat the transverse shaft 5 will be artially turned to position the parts for filling replenishment on the next beat up movement of the lay when the shuttle is on the filling replenishbeam 1 is a :ing side of the loom, all as will be readily understood by those familiar with this class of machines. f

. Projecting from the end of the breastv acket 18 appropriately secured to the breast by means, such as the bolts 19,,

said bracket being provided with the. usuali slot 20 and'holding notch 21 for a shipper' 22.4? riveted, matchmaker ia-amarga l 'knock-oielever adapted to disengagethe shipper from its holding notch 21and stop the loom. Extending from the` pivotal mounting 23 of the lever 24 isa vstop arm 25, which, upon movement clockwise, viewin rFig. 1, is adapted to actuate the knock-o lever 24 and cause loom stoppage. The end prevent accidenta dislodgment ofthe rider while permitting free longitudinal and tilting action thereof.

The rider has a side cam 32 which on longitudinal movement of the rider to the left or rearwardly is adapted to engage a complemental portion 33 on a. lifter 34, Fig.1,fv90

a lug 35 serving to support the ridevr'lifter in'proper coacting relation with the'rider.- From the construction thus far described it will be apparent that should the'lrider" 29 be moved to the left, Fig-1, or rearwardly the side cam 32 will travelfup the portion 33 of the lifter 34 until such cam passes over 4vas the portion 33, see Figs. 3 and 4. The details in these respects may be variously -modied within the true scope'of the invention, as Willbe obvious. The rider may-.be

provided with an additional projection-32"- l on the side 'opposite the cam32, which, .inl

connection with the bracket, may act to guide thel end-of the rider as it is-moved longitudinally, but this is not essential.

Referring more particularly gte-th? detail views of the rider 1n Figs. 3 toed) inclusive, it will benoted that said riderhas a nose 36 and ashoulder 37 -to' be engaged under certain conditions hereinafterdescribed by a part 38 secured to thewefthammer, and which for identification herein may be termed the rider hammer. lAt its opposite end, portion the rider 29, see Figs. 3 to 9 inclusive, is provided with an under sustaining shoulder or rest 39 and an inclined portion v40, which, underconditions to be presently described, coact with a part 41 connected to the transverse shaft 5, and herein conveniently formed as a Enger projecting from the arm 7 see Figs. 1 and 2, although,

,described The rider 'has a stop shoulder 45 on itsunderfportion adapted engage;36V

these various details of rider construct-ion4 may be modified in many ways within the present invention which is defined in its true scope by the claims. i,

During normal working condition of the loom 'the parts are disposed relatively, as indicated in Figs. 2 and 9, with one endpor tion of the rider resting on the top of the finger 41'and the nosef of the rider in the path of movement of the rider hammer 3S. Bearing in mind that the weft hammer and perforce the rider hammer move forward once for every two heats of the lay and that such forward movements follow the detecting pick of the shuttle, should the filling be absent on a 'detecting beat or forward movement of the hammers, the actuator 9 will be moved to the front, turn the transverse shaft 5 and move the finger 41 from under the front end of `the rider from the position Fig 2 to that of Fig. 3, and cause filling replenishment on the beat-up following the arrival of the shuttle to the replenishing side of the loom. On the next movement of the weft hammer and rider hammer, which is the non-detecting or rearward movement, the finger 41 will-engage the end of the rider, which is now in position, Fig. 3, and move the rider to the left, the cam 32 on the rider moving over the part 83- of the rider lifter, and the parts assuming the position represented by F 4. 0n the next forward movement of the hammers, which is ytheir detecting movement and follows the detecting pick ofthe shuttle, should no filling have been laid in front of the weft fork, the rider hammer 38 will engage the Shoulder 37 of the rider and move the rider from the posi tion, Fig. 4 to that of Fig. 5, theflnger 41 being simultaneously moved to the front and the filling replenishing mechanism being positioned for the transfer of a carrier to the shuttle as the lay beats up following the arrival of the shuttle to the filling replenishing side of the loom. However, should the shuttle lay filling in front of the filling fork on this pick, the rider hammer will engagev the shoulder 37 as before and move the rider to the front or-to the right, but since the Vfilling fork was tilted as the lay beat up following this pick of the shuttle from the replenishing side of the loom, the finger 41 will not be moved but will remain as in Fig.

6, consequently the inclined portion 40 of the rider will rise over the end of the linger and the parts .assume position as in Fig. 6. On the neXt or rearward movement of the hammers, which is a nondetecting movement, the parts will be moved from positions of' either Figs. 5 or 6 to that of Fig. 7, because if filling is not laid, as would be the case in a' hopper misthread when the parts move from position indicated by Fig. 4 to that ofv Fig. 5, the backward movement of the finger 41 will cause it to contact with the rider at 48 and move the rider to the position of Fig. 7'; and in case there is no hopper misthread on this detecting movement, then the finger 41 will not be -moved to the front andas the rider hammer moves back, the ineline 40 of the rider will cause it to pass from position o f Fig. 6 to that of Fig. 7. In the position of parts thus reached after asingle hopper mist-hread and consequent replenishment of the shuttle, whether filling be present or not on the detecting movement of parts following such replenishment, the stopr shoulder 45 of the rider will taire posi Y tion back of the toe 46 of the lever end 26 and be related thereto-to cause either loom stoppage .on a second hopper misthread or return of the parts to initial position, as

shown by Fig. 2., Shotldasecond hopper misthread occur, the weft fork will again,

`not be tilted and the actuator 9 willI move the transverse. shaft 5 and Vfinger 41, as before, but as the rider hammer also moves forward it engages the nose 36 of the rider and movesv it from the position shown by Fig. 7 to that of Fig. S, thereby causing the shonlder 45 to lmove the lever 25 and cause loom stoppage. Should filling be present on this detecting movement with the parts as shown by Fig. 7,

as would be the case if a second hopper misthread did not occur, the'finger 4]. will not be moved, and as the rider hammer on its frontward movement engages and moves the rider, the incline 40 of the rider will slide over the end of the. finger and the parts will-assume the original position, as indicated in. Figs. 9 and 2, and the loom will continue to run. 1

Filling replenishment by first failure, of

lling from any cause places the parts successively from the positionfshown by Fig. 2 to that of Figs. 3 and 4, the last position being assumed as the hammers and finger movebackward on their non-detecting action. If, now,.there is no hopper misthread on the next detecting movement, in which case filling would belaid by the-shuttle,the -parts pass from position of Fig. v4 to'that of Fig. 6 and then Fig. 7, the last position being as sumed as the hammers move back onthe nondetecting movement, whether filling be pres ent or not. Should a real misthread occur, however, the filling will be broken as the shuttle returns to the-rafplenishing sidev of the loom after` replenishment, so that on the neXt detecting movement of the ham-v mers,A which occurs following-the detectingv "pick of the 'shuttle to the non-re-plenishing shown by Fig. 7.and the finger 41 will bel side of the loo1nthe rider hammer will meet the nose 3 6 of the rider in position moved by the actuator 9,' as before, with the ,result thatl the shoulder 4:5 will -cause the lever to eiect loom stoppage. Thus in the present invention it will be noted that upon the occurrence of a double hopper misl thread, the loom will stop,` and will also be e stopped by the occurrence.y of a real misthread; in other words` the loom will-.stop if on two alternate detecting beats the filling be absent; that is, if it -be absent on one detecting'beat, present on the next detecting beat, and absent on the next detecting beat the loom will stop.

f What is claimed is:

1. In a loom of the characterdescribed,v

` the combination of the .lay, a transverse shaft'and means for actuating; it to cause filling replenishment on the occurrence 'of filling absence during a detecting beat, and

means for causing loom stoppage on the occurrence of a double hopper misthreadI and onthe occurrence of a. real misthread.

f 2. Ina loom ofthe character described, the combinatio fof. the lay and its shuttle boxes, a detector to detect the presence or absence of filling, means for controlling replenishment oflling on the .detection of filling absence, and means to stop the loom on the occurrence of either la double hopper misthread or ,a real' misthread.

3. In a loom of thecharacter described,

the 'combination of the lay and its shuttle boxes, a detector togdetecfthe presence or absence of filling, means for controlling replenishment of'lillingon detection of filling absence, and means to cause loom stoppage when filling is absent on two alternate del tecting beats whether it is-absent or not on the intermediate detecting beat.

4. In a loomof the character described, the lcombination of means for detectin the presence or absence of lling in the she filling replenishing controlling means adapted lto be actuated when filling is absent on a detecting beat, and means permitting continuation of the loom operation upon the ing replenishing' controlling means adapted for eration on the occurrence of a single hopper to be actuated when filling is absent-ena detecting beat, and means comprlsing a rider er'nnttlng the loom to continue 1n opmisthread and for causing loom stoppage on the occurrence 'of a double hopper misthread or a real misthread.

6. Inv a-loom ofthe .character described, the combination of means-*for detecting the presence or absencefof filling in theshed, lling replenishing controlling means adapted toghe" actuated whenfilling v is absent on a detecting beat, and meansI for stopping the loom when the filling is absenton a detecting'beat following replenishment, present on the next detectingbeat,and. absent on the next detecting beat. l

7. In a loom ofthe character described, the combination of'mea'ns for detectin the presence or absence of filling invtheshe filling replenishing controlling means adapted to be actuated 'when filling is absent on a detectingbeat,I and means for controlling the loom operation `comprising a member and its actuating devices for moving it from normal to a secondary position followingV the first detection of filling absence, and. toa third position on the next detecting movement 'whether filling be" present or absent to locate the parts for causing loom stoppage, and to a fourth position to stop the loomfif lling is absent on the third detectingAmovement.

8. In a loom of the character described, the combination of means for detecting the presence or absence of filling in the shed, filling replenishing controlling means adapted to be actuated when filling is absent on a- -detecting beat, 'andmeans for controlling the loom operation, comprising amember and .itsactuating devices for .causing vsaid member to move from normal to a secondary position o'n the detecting movement following the occurrence of a single hopper misthread, and to a third position on Athe next detecting movement whether filling be present or not, and to initial position `upon presence of fillingon the succeeding detecting movement.

9. In a loom of the character described, the combination of meansfor detecting the presence or absence of filling, filling replenishing controlling means adapted to be actuated upon the detecting of filling absence, a rider, a rider hammer and a nger, means for causing the rider hammer and finger to move the rider from normal to a secondary position on a first absence` of filling, to a third position whether filling be present or not on the next detecting movement, and either to a position for eiiecting loomstoppage shouldfilling be absent on the succeeding detectingmovement orback to normal position in case filling is present on such detecting movement. I

10. In a loomgof. the character described,

the combination of means for detecting the j presence or absence of filling, filling replem" ishing controlling maansad'a ted .to be actuated upon the detaiting .of ing absence, a

4looselymounted rider, a rider hammer'and a linger, means for causing the rider hammer and linger to move the nder from normal to a secondary 'position .on a first absence of lling, to a third position whether lilling be present or not on the next detecting movement, and either to a osition for effecting loomstoppa e should `ng be absent on the succeeding ete'cting movement or back to normal vposition in case ling ispresent on such detecting movement. f

1,1.A In a loom of the clfracterdescribed, A Y the combination of meansfor detecting the` presence or absence of lling in the shed, lill- Iing replenishing controlling means adapted to be actuated whenfilling is absent on a Witnesses:

detectin beat, arider having a cam portion, a rlder lifter having a coperating portion, anda rider hammer and finger for actling upon the rider stoppage on 'the occurrence of lling absence 20 on two alternate detecting beats whether it is absent or not on In testimony whereof,

name to this specification, two subscribing witnesses.

to cause it to effect loom the intermediate beat.

I have signed my in the presence of JoNAs NoRTHRoP.

WM. O. PERKINS,

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