US870509A - Weft-replenishing loom. - Google Patents

Description

NOV. 5, 19.07

ATENTED NbA 870,509.

H. LI HARRMAE.

WB?? BE'LENISHNG BGEL 5 SHEETS-SHEET 1 Wma 'PATENTED NOV. 5. 1907.

H. I. HARRIMAN.

WEFT RBPLENISHING LOOM.

APPLICATION FILED SEPT. 11,1905.

5 SHEETS-SHEET 2.

sv-J/ ...Z5/venan- YQW i Ogcnrnqy.

PATENTED NOV. 5, 1907. I. HARRMAN WEET REPLENISHNG LGOM.

APPLI'JATION FILED SEPT.11.1905.

5 SHEETS-SHEET s @Cim y? No. 870,000. PATENTED 110V. 5. 1007. H. 1. 111111111011111.

WEFT REPLBNISHING LOOM.

APPLIoATIoN FILED SEPT,11.1000.

5 SHEETS-SHEET 4.

Zz/neaess 'nvnor.

520W 53'/ @M gf @www No. 870,509. PATENTED NOV. 5, 190'?.-

H. I. HARRIMAN.

WEPT RBPLENISHING LOOM.

APPLICATION FILED SEPT. l1. 1905.

y- C e Y drn/X722 5 SHEETS-SHEET 5.

G nl

y Y fd f- I p3 l b' i2 n/ Za'fzees.' @MM F961@ UNITED STATES PATENT OFFICE.

HENRY'IpHARRIMAN, OF H YDE PARK, MASSACHUSETTS.

wEFT-REPLENrsHING vLooM.

l vSpec'ziieation of LettersPatent.

Patented Nov. 5, 1907.

Application ned september 11 1905. serial-11m77.231s.'

.. of Norfolk, State of Massachusetts, have invented acertain newand useful lmprovement'in Looms2 of 'which the following is Va specification, reference` being had g therein tothe accompanying drawings. i v

Broadly stated, the invention'consilsts the combi-A I nation `in a loom, with means for' effecting a predetermined corrective result, and a weft or iillingfindic'ator operating in case oi the happeningef a predetermined contingency in connection with the worllinglwe'ft-supply to call or indicate for theunctionalpperation ofthe said ineens for the attainment of such result, of@ secondary Weit or [illing-indicator or detector wh' h trols the consummation of the said result.,4 r V The invention is shown herein ap lied in a loo employing iustrumentalities for replenishing automatically the working-weft-supply thereinwith'an interrupf' tion in the `regular weaving action vcorresponding with merely the interval represented bye certain number ofi. picks inthe weaving, *he said loom 'being of the class j v in which .the replenishing Vinstrumentaliti'es are calledinto action prior to the complete-exhaustion of the weftsupply that is carried by the shuttle on the lay, when the said weft-supply has become depleted. to a predetermined extent. 1n this instance the corrective result consists in restoring the loom to its normal weaving ac tion with replenished Working weft-supply- In a loomof the class in qustiona measuring or gaging device,

which may be termed generally a ieeler, is employed to net in connection with the Wound mass Vof lweft or lilling that -is contained within the Working shuttle'on the` lay, to detect when the said mass has been depleted-to the predetermined extent by the cleliveryvof the weft oillling from` the shuttle in the course ofthe' weaving.

The said feeler is in operative control of the replenish` ing instrumental ities, and is intended to call or indicate for the functional operation of the said instrumentalitiesin advance of the complete exhaustion of lthe weft-supply that is carried by the working shuttle, so as thereby to lessen the opportunities for the occurrence, in the cloth which' is being woven, oi the defect in the wea'V- i ing which results if the shuttle leaves Within a shed in the Warps a length of weft-thread extending only part way across the width' of the cloth and constituting arrincompleteor partial pick. -Tlie theory is" that the feeler or equivalent device shall indicate or call for the replenishing operation While' there-still remains within the shuttle on the' l'ay a quantity of yarn sufficient to insure the introduction of a full or complete pick oi weft by the shuttle, in the last flight ot' the shuttle from the feeler end of the loom to the feeding end thereof preliminary to the accomplishment of such operation.` It

being practically impossible to ascertain with clse pre-v cision by means oi the feeler or equivalent device the this respect, would :resti/lt,` rom the lowering of the cloth in grade by I vplete picks or .lengths of weft.

or its equivalenti to measure with greater closeness' Awith respect to the end ofv thesupply of Weit or filling'- Within the shuttle. v

extend entirely across the width of the cloth. i

or'indicate for the replenishing operation while there 60 remains a'fairly considerable quantity of Weit or filling withi. the shuttle. This quantity, which is greater or less according to circumstances and the closeness to accuracy withgwhich thefeeleror equivalent device is set, becomeswas'te in consequence of being discarded Ifrom ,the loom.I Manufacturers prefer to incur loss in 'l order to avoidthe greater loss which the existence 'of defects therein due to partialor incomfinel general'object of the invention is, in the case of u loom in which weft-replenishment is effectedauvtomatically,l to enable the .margin of wasteto be re`- duced by rnderingitsaie and feasible tosetr'the feeler A second general object of the inventionv isv to guard against defects intlievweavingfof the character that would occur if, after the feeler has called orv indicated of the warpsby. the shuttle' in its Vflighti'rom the feelerend of the loom to the feeding-end thereof should not These v general objects are attained in conformity with the present invention,l iu the ease of a. loom such as referred to, through the employment of a secondary weft-indicator, or detector which acts to. ascertain whether or not the weft or filling extends entirely across the cloth after thel [light of the shuttle from the {color-end ofthe loom to the feeding-end thereof, andwhich controls the consummation of the predeter-v` mined corrective result, in such `c'ase the automatic replenishmontvoi Vthe .depleted working weit-supply and resumption ol'the weaving action. l

In tl1e`(lmwings,-Figure l is a yieW, mainly in side elevation, but partly sectional, showing certain poi'- l tiols of the weft-rcplenishing instrumentalities of a loom in which my invention is adapted to be embodied.' 1v00 Fig. 2 isla plan view showing certain parts'of Fig. l1.

Fig. 3, Sheet 2, is a detailed view infside elevation-y `ihow'ing certain portions'of a 'feeleruucchanism, the

working shuttle being in vertical transverse section. Fig. 4, Sheet 2, shows in iront elevation the Fig. 3. Fig. 5, Sheet 2, showsthe parts of Figs. 3 and 4 in plan. Fig. 6, Sheet Il, shows in vertical transverse section part o f a loom having applied thereto n secondary weft-indicator or detector in conformity i with my invention. Fig. 7,'Sheet '4, shows in the features ol Fig. 6. Fig. 8, `Sheet 5, shows the secondary weft-indicator or detector and associated parts 80. for the corrective action oi the replenishing instru- .mcnt'alities, the pick` of weft that is laid in the shed parts of plan 11() c of the said lever is provided with a roll 15, which-latin the Apositions which are assumed thereby when the4 weft or filling `is present, as when a Ecomplete or full length pick is laid through the shed in the 'warps,'. at the time of the operation of the said'indicato'r or 'detector. Fig. 9, `Sheet 5, is ayiew similartrijg.r 8; showing the parts in the` positions which are assumed thereby at the time of the'opcration'of the secondary indicator or 'detector When the weit or filling does not vextend in position to be acted upon hy the said device. Having reference to ,the dra\vfings,- the 'opposite side-frames or end-frameset a loom are designated 1, 1, 2 being the breast-beam. l

3 is the crank-Shaft, and 4, Figs, land 6, is the cam- 5, Figs. 6 to 9, is a pitman or connecting-rod connecting one'oi the cranks with 'the lay, 6 being the lay# swords, 61|4 the layrOCkSha-t, 'and 7 the lay-beam.

plays back and'forth. Figs. l and 2l showcertain' parts 'of weft-replenish ing instrumentalities which may beemployed in car per being supported in place adjacent oneend oi thebreast-beam. 121 is a shuttle-support, whichis pvf l 8 isthe shipper rock'shaitwhich is mounted in bearings with which othe side-frames oi'the loom are provided; and extends across the loom beneath the breastbearn, 9 being a shipper-handle which is made fast upon" one end of the said roclcsln'nt.--

In Fig. l, 1 0 is a portion of the picking-stick at the' feeding end o f the lay, and in Fig. 2, 11 is the slot that is formed through the lay-beam, extending lengthwise of the lattenwithin'which the said picking-stick rying my invention into effect. ln the said figures, 12 is a hopper for fresher reserve shuttles, the said' hop-- otally mounted at 122 in connection `with the hopper, and furnished. with rearwardly-projecting fingers that normally occupy a position beneath the kbottom shuttle in the hopper, supporting such'shuttle and the others which-rest upon the latter. 13 is the injector, -itssupporting lever being mounted lpivotallyat 14 upon the lower part of the loom-frame. The'short arm ter is held pressed in Contact with the periphery of an edge-cam V16 that is carried by the changefshaft 17, by

' the tension oa cont'racting'spiral spring 18 having one end thereof engaged with the injector-lever and the other end thereof engaged with theeye of a bolt 19,

applied to a bracket 20`Which-is attached' to the loomira'me. Normally the change-shaft, together with the cams which are fast thereon, stands motionless in the position represented in Fig. 1, and the injector occur pics the position beneath the .hopper which it occupies i in such figure. When the change-shaftis causedto rotate, a' preliminary forward movement of the injector occasioned by cam 16 carries the injector against a dowx1wardly-cxtending finger` 123 of the shuttle-supe port, moving the latter'forward so as to withdraw `its rearwardly-extending fingers from beneath the bottom shuttle in the hopper and permit the contents of the hopper to drop until the bottom shuttle rests upon the horizontal shuttle-supporting portions' 13] of tlie injector. The spring 18 next .operatesv to move the .injector with yielding force rearward toward the lay, under the control oi'the cam 16, to place the shuttle which is holdl thereby Within the shuttle-box, after which the said cam acts to communicate positive Anamely forward'to'ward the'breastbea'nnl and there yi shnt'tlebox at 'the' feeding-end of the loom, 'it' being openthe box to permit the' spentworking shuttlo'bir brackets 24', 24, which' are ,attachedQto thelay-beam,

' 22l is held .depressed'in its working position, S0 a! to rvshuttle and. thepintxodnc'tion of a fresh or reserve shirt?.

i the reverse direction under the control 0f 'the' .cam-29 to limit the. extent of theI retraction of the ejector under movement to the injector in the opposite 'direction, i

restores the injector to itsnbrmal' vpositionl showny )if Fig. 1.: At 22, Figs. Land'2, is the iont-plate-ov -705 movable to'enabfle the saine to be withdrawn from its, normal position at the front of suchlshnttle-boxflto the lay to be discharged from the shuttle-bog; fresh or reserve shuttle to be inserted into` the` lat through' the action i the injector. Thernt-plnte is carried by forwardly-projecting 'arms 231, 231-,`io ing part of a rocker 23, the'rockshaftof pivotally mounted ,in bearings that are provided.

'and ris'e at the rear thereof. Normally the frontlpla'te keep the shuttle-box closed, b y means' offaicontraet ing spiral spring 25, IFig. 1f havingone chil theieo connectedto one rof the forwsrdly-proj`ectiigarfrls 231` ofthe rocker and the .other end thereof nnected-'to .one of the maskers 2,4.l For the purpe rfpsgning,

the roclretoraise the front-plate to oper 'shuttle-@ box to permit of thedischarge of the spent\wrking lconnecting-rod `28 to the rocker toraise thejfront-platai from its mm1- closedpopitiqn and. thereby'open the, shuttle-box;- The spring 25 acts to move tlie`ro c ker i i' to lower the iront-plate tof its normall positionfa therebyclosef the shuttle-boi: Anl ejector '30 i`| -j *A I. r'nounted by means of brackets 31, 31, upon the`back32 of vthe shuttle-bon, thee-aid ejectorbeing formed asa rocker having journals which are litted -to bearings in th'e said brackets, and having fingers' 301, 301, which project into openings at therear of the shuttle-boxas indicated' Figs. 1' and 2l The ejector' is held retractedlnormally by the tension of the'contracting spiral spring'33, the latter having one extremitylthereof engaged with a s'crew or the like projection carried by the rock-shaft of the rocker 23, while the other end of the 'said spring is connected with a strap 341 thatvwraps part way around the rock-shaft of the ejector and is attached' by its'inner end to the' said rock-shaft. l A finger 302 prof jecting rearward from lthe ejector takes against the uridersid'e of the rockshaft 'of the rocker 23," 9.nd serves the action of the spring 33. A finger 303 projecting forwardly-frorn/the ejector ispressed against by one of A the arms 231' of the rocker 23 in the movement` of the rocker by'which the front-plate 22 of the shuttle-box is raised, and. therebythe'ejector is actuated to eject the spent working shuttle from the opened-shuttle-box.

The ejected shuttle falls ron the saidshuttlebox upon a flexible apron 34, the latter being connected at its. upper end with the front of the lay-beam and passing forward from the lay-beam over a transverse rod 3 5 130 explained; This provisionfor which is supportedat the rear of the shuttle-receiving `holt 86, the latter being attached to the adjacent sidevframe of the loom. The shuttle slides from the apron .84 into the said box 36. The apron plays back and liorth over the rod as the lay vibrates, and therebyv accommodates itself to the varying positions of the lay, it 'serving to conduct the ejected shuttle into the box 36 Whatever may be thel position of the lay itt the time of the ejection. `In the looms` of this type the lay and other Weaving instrumentalities are Caused to stand still for the performance of the replenfishi'ng operation, and are restarted after the fresh shuttie has been placed in the shuttle-box at the feeding Iczul vof .the lay, after which the change-shaft comes to rest. Certain of the devices for automatically restart- =ing the weaving instrumentalities are shown in Fig. l, und 4comprise the cam 37 on the change-shaft l7, the #lever 38 pivoted at g8 and having a projecting portion which is held pressed against the periphery o the said c tin by the 'action of the contracting spiral spring 39,

'a rod 40 which is provided with an adjustable collar 4l to =be engaged by the said lever 38, an arm 42 which is mounted to swing loosely upon one end of theshipper vrockshaft 8, an 'arm 43 which is lixedly mounted upont'he said rock-shaft, and a strong spring 44 con-Y meeting the said arms. As .the change-shaft l7 nears the end of its rotation the cam 37moves the lever 38 against the tension of spring 39, causing the said lever to engage with the 'collar 4l and move the rod 40 endwis toward vtherear of the loom, this movement of the fwd swinging the arm 4 2 and the latter transmitting through the "spring 44 movement to the arm 43 and nook-shaft 8 to -turn the said .rock-shaft so as to cause the `weaving instrnmentalities to be shipped into action again as I'in :the application aforesaid, lhespring 44 Afis ofsuffieient strengthto transmit movement yto the shipper roek-shaft when the latter is not prevented by La :positive force from turning. When, however, the rockehaft 8 .is prevented by a positive force from turnfing, tfhe said spring yields or stretches as hereinafter yielding forms a fea. tore 'of the present -inv ention. I

A lconvenient arrangement of feeler mechanism is shown Figs. 3, 4 and 5 of Sheet 2, in which figures 45 -is a movable swell `that is mounted upon a pivot carried lby the layratfthe front of the shuttle-box at the end of the :loom 'opposite that at which the feeding or shuttlr `changing takes place. The said swell has a short arm 455i fhaving connected therewith onoend of a contracting spiral spring 46, the other end of which is engaged With-a bracket 47 projecting forward from 'the layhcaln. The said spring acts with a tendency to move the free extremity of the swell rearwardly into the said shuttlehoxi As the working shuttle enters the latter at the `end o'f its .flight across the loom .from the feeding-ond it :presses the said swell forward. The swell co-acts wiilra spring 'piece 48 which is applied to the shuttlehody and occupies a slot in the front wall of the latter .adjacentfthe'hase of the hohhin or cop which is contained Awithin the shuttle. The swell has a forward .projection or dotant 461 for 'coperation'with a detentl plate 49,'that :isanounted .upon the upper end of a verf ltica'l har or slide 50, the flatter being .supported in .a lguidel'atithe .frantoi thcylaybeam 7, and having in fthe operationof -theloorn a vertical reeiprooation co1n.

and the bolt is cccentrically located with reference to the axis ofthe lay rock-shaft, and conscquentlyth'eA rod and the lay vibrate about different centers as the lay swings back and forth. The difference between the path described hy the layfbeani and that described by the upper end of the rod occasions 4a vertical movement of the bar or slide through its guide upon the front of the lay-beam, the parts being so arranged that as the `lay goes rearward the bar or slide rises, and as the la'y goes forward again tho har or slide. descends. Each time the shui lle enters the shuttle-box at the feeler-end of the lay, it passes into a position in which the slot and spring-piece are presented to the swell, and by the action o1" the swell against thc said spring-piece, the

latter-is pressed inward toward the hase of the hohhin yor cop. rlhe extent of the rearward movement of the Vswell under the action of its spring is determined by the size ofthe wound mass of weft or filling at the said base. So long as the quantity of weft or filling in the shuttle is sufiicient for continued weaving, the swell" is pressed forward so that its projection or detent 46]. is kept beneath the detent-pllate 49 of the vertical bar or slidc5()7 and engages therewith in the descent of the said bar or slide which is occasioned by the forward swing of the lay, so as to prevent the bar or slide from making a full downward movement. When' the bar or slide is arrested in its descent, the spring 55 yields to permit the bolt 53- to rise sufficiently to accommodate the further movement of the lay toward front cen'- .ter. The vertical har or slide isprovided'with a forwardly projecting knock-piece or bunter 56 which is designed to co-act with a projection of a depending arm 58 Which is fixed upon one end of a-horizontal rockshaft 59 that is journalcd in fixed hearings 60, 60,` at

one end of the breast-beam. At its inner extremity, the said iocleshait 59 has an upwardly extending arm 63 that is provided with a pi n (i4 which extends beneath a dog or pawl that is connected pivotally at its front ond to an arm GG rising from the rod or shaft 67, the latter being mounted in a bearing 68 at thc under side of the breast-beam, and having tho arm (i9 serving for the transmission of movement to the parts hy which the change-shaft is caused to rotate, and also having a projecting piece G9 which acts against a projection 9] oifthe shipper-handle 9 to turn the latter in order to arrest the' action of the weaving instrumcntalities for the purposes of the replenishment. which the rotation of the change-shaft is effected ymay he constructed and arranged to operate asin my application aforesaid. By moans of a torsional spring 70 surrounding a portion of the horizontal rock-shaft 59 and having one extremity thereof engaged with oneof the bearings (i0 for the said rock-shaft, and the other Yextremity thereof-engaged with a collar 6l. that is fast upon the said rock-shaft, the rock-shaft -is held norlmally in a position in which' the stop 581 which is =pro vided on the depending arm jthereofis-caused to en- 'Ihe parts by gage with the stan'd 601, and in which the pin 64` of the upwardly ,extending arm 63 supports the rear end of A the -dog or paw]A 65 above the path of the striker-arm 7l, the latter being vibrated by means of a cam -72, Fig. 4, upon the cam-shaft 4 of the loom. When the detent-plate'49 catches upon the top oi the projection or detent 461nof the swell 45, the vertical bar or slide 50 is arrested in its descent before the knock-off piece lor buntor56 has been lowered into position to engage however, as the delivery of thewet or filling from the` .shuttle has decreased the size of the final or basey por- 20 tionvofl the wound mass within the shuttle toy the predetermined extent, the rearward movement of the swell 46 which then is permitted carries its projection o r detentv46l clear ofithe path oftheideteniplate 49,

allowingl the vertical bar or-slide 50 to complete its descent.4 By this cbmpletion of the said descent, the knock-ott piece or `bunter 56 carried by the said vertical vbar or slide is cause'd to assume a position opposite the projection 57of thedepending arm' 58 of the horizontal; rock-shaft 59, and as the lay continues its forward more# ment the engagement of ti e said knock-off piece;` or

hunter with the said projection causes the Loch shhii tlfeillustrated embodiment of ytheinvention controls to be turned, moving' the pin 640i the upwardly projecting arm (i3 rearward beneaththe recess 5 61 of the dog or .pawl and lowering tho-.free end of the said dog or pawl into the path of the engaging1 end of the striker-arm The strikerfarm nowI engages with thcdog or pawl, pushing the same'orward. so as to turnl the cross-rod andtthereby start the .ehangeshaft into motion as well as arrest `the working of the weaving instrunientalities. I

The secondary weft-indicator or detector which in the consummation of the predetermined corrective resnlt is shownin Figsf to 9. In such figures a is a fork or feeler that is ,mounted upon the pivot b at the rear of the lay-beam, at the upper surface of the latter and ad jacentlje shuttle-box at the feeding end of the loom. The 'saidfork or`ieeler `is furnished with an arm c projeeting'at an angle with respect to the portion of the said forkkor eeler which makes contact .with the weft or l1- ing.h vAtorsional Icoil spring d, Fig. 7,'applied-to the pivot Ib, and having oneextreinity thereof engaged with the fork and the other with the pivot, acts with a tendlency to swing the fork forward and downward to feel for weft or filling between the selvage of the cloth that is A'being woven and the adjacent shuttle-box after the entiance of the shuttle into the said shuttle-box at the conclusion of its light'across the looni from the feele'r-- end oi the latter, 'lhe upper part of the layi-b'eafnis recessed at e as indicated bythe dottedflines in Figs. 6,

i 8 and 9', in order that the fork may descend into the re- 4'cess in its forward movement lin case there is no weft or filling in its path. A grid f is applied over the recessto -v support the weft or lling againstthe pressure of the" tinesof theV fork. The fork a hascoiubined therewith means for raising and retracting the same, in .practice' it normally is held in the position in which it is shown in Fig. 6 out of th path ofthe working shuttle.

To these ends, in the present instance the forkvislprovided with an arm a anda rod g mounted to slide in 70 the directionoi its length th'rougha guide g on the lay l is provided with an arm or cam-piece h for engagement Awith the aim a( of the fork. Lengthwise movement of the rod g in an upward direction carries the upper end of the said arm or campiece h, which is' rounded o'ff at 75' the rear' side thereof to render its action upon thearm a oflthe fork gradual and easy, against the under side of the said'arm a, and by the action of the arm or'campiece h against the arm a the fork is turned upward and j. rearward to the position of Fig. 6. The arm I1. normally remains in Contact with the arm a in the position of Fig.

'6 and during the regular working of the loom holds the fork ain its uplifted retracted position. Downward movement of the rod g and arm h releases the fork to the, i action of its spring d, which thereupon turns the yfork forward and downward to feel for the weftor filling. .A If when this movement ofthe fork occurs the weft or filling extends from the selvage of the 'clot-h to the shuttle in the adjacent shuttle-box, it supports the fork a in the* position shown in Fig. 8. In ycase no weft or filling extends from the selvage to the said shuttle, the for); a ldei Scends to .the psition in which it is Shows iii rigo. f 'lhe rnd g is operatively'combinedywth the weit-replenishlng mechanism, and when the operation oi the said mechanism is called or indicated the 'said rod is oper- 95 t`i.i'.`eii`-.oJ ccasionfthe action of the fork `or feeler e.y The `lower end of the .rodpasses through a hole in the-free extremity of an operating lever i which is mounted upon a pivotalsup'port i/carried by a bracket or stand l i2 that is attached to the side-frame at the feeding-end 100 of the loom. The said lever is held in engagement with 4the periphery of a cam j upon nthe changeshaft 17v by means of a contracting spiral spring -k havingvone end thereof engaged with the lever and the lother end the-ri of engaged with a stand that is attached to the adjacent side-frame. l v i' A collar g2 is fixed upon the rod g above the lever t', and the lower portion of the rod is encircled by an' en; panding coil-spring g3 which yis compressed betweenthe i lever and a collar gv4 that is iixed upony the rod. While r110` the change-shaft occupies its' position of rest the low portion or hub yof cani is presented to ,lever t', lwhich latter occupies its Ielevated, position, yand in conse# quence of the engagement of the said lever ywith the upper collar g2 the lever holds the rod g Iin its upper poF 1 15 sition, thereby causing the fork a to be kept in itsup raised and retracted position during the ordinary'workingrvof the looni. When -the ,change-shaft is'caused -to rotate'ior the purpose of occasioning the feeding operai tions, thexfcamjopeiates in the concluding portionof rsuch rotation "to ,depress the ,lever fi, and the latter, aetE Iing againstl g3; transmits through 'the said spring the required force for moving rod ,g and its arm or cam-piece h downward sofas to release the vforlg m feeler a to the action of spring d and permit the same be moved by the latterfspring to feel for weft oriillingv I In order that thesubsequvent operations may be coni' trolld bythe zfork orvfaeelelr ofthe arm c of the sameis u notched as shown in Figsrh, and v9, and the upperfendi 3' f'of rod is" provided with a projection or engaging'por- 130 shipper-redis prevented from being turned by the said yis ,pivoted a detent' prh'aving a lug p and handle p?.

' the descent of the rod turns th'e detentiorward into po- 30 as in Fig. 9. In Fig. 8 the shipper rockshat is free to be tion g*s to engage in the notch. The arm a and projection g5 are so related that in case the fork or feeler' a is supported by weft or filling as in Fig. 8 the said arm will occupy a. position in which its notch will remain in the path of the descending projection g5, so that the said projection will enter the said notch, as in 8. Thereby the rod g will be arrested vin its downward movement, and the'urther downward movement of the lever 'i under the action of the cam j yon the change-shaft will only compress the spring g3. Should the weft or filling be absent so as to permit the fork or ieeler a to assume the position of Fig. 9, the arm c will be swung forward with relation to the path of projection g5, and rod g will be permitted to accompany lever i to the full extent of the movement that is communicated thereto by the cam j. To the rod g is secureda block m having piv-v oted thereto the lower end of a rod n which passes upward yat the rear of the breast-beam through a fixed guide n. 'Upon the upper end of rod n is fixed@ pro'- jection n2. To a bracket o attached to the breast-beam Normally, the detent is held swung rearward as shown in Figs; 6 ami 8 into a position in which it is clear of the arm p of tire shipper vrockshaft 8, by means of the torsional spring p3, Fig. 7. The lug p is designed tobe engaged by the projection 'n2 case rod n is caused'to delscend to the full extent that is indicated in Fig. 9', and in'such case the contactof the projection with thelug in sition 'to engage 'with the arm p4 of the shipper rockshaft turned by the action of the restarting devices after the shuttle has been changed, to cause the loom to continue the weaving operation with the fresh shuttle which has been placed upon the lay. In Fig. 9, however, the

devices, and consequently the weaving operation is not resumed. Whenarm p is engaged by the detent p so as to prevent the shipper rockshaft from being returned by the action of the restarting devices, the spring 44' connecting arm 42 with arm 43 of the said rockshaft yields, permitting arrri'42 to move whilearm 43 is held from moving.' The handle p2 o detent p enables such detent to be operated manually, as in case it is desired g by the workman to disengage the said detent from the arm p4 of the shipper rockshaft.

The invention is not necessarily limitedY to use in connection with Weit-replenishing instrumentalities of the precise type and character shown and described herein, nor in looms in which the weft-replenishment is effected by changing the working shuttle, Nor is it restricted with respect to the precise character o the weft or tilling indicators or detectors, or' to the manner in which the secondary indicator or detector' controls the consummation oi the'predetermned corrective result.

l l claim as my invention 1. ln a loom, in combination, means for effecting a predetermined corrective result, a weft or filling indicator indicating for the functional operation of the said means for' the attainment ofsuch result in case of predetermined conditionof the working weft-supply, and a secondary weft-,indicator or detector which controls the 4consummation' of the said result. "'2. In a loom, the com'binaton with instrumentalitles forr eplenishing the working weft-slipply, anda detector' ln dlcnting.1 tliesaid lnstrnmentnlltles into action incase of depletion of the said weft-supply to a predetermined extent. of a secondary weft-detector operating,7 in thesbsence of weftor lling on the return of the shuttle to the feeding end ot the 100m to prevent the consummation of' the replenshing action.

3. In a loom, the combination with wett-replenishing' instrumentnlities, and a weft or lining-indicator calling or indicating for the operation 'of the said instrumeutalities on depletion of the working wet-supply to a predetermined extent, of a. weft or filling-detector operating to call or indicate for stoppage of the loom on absence 'of weft or filling from the shed on the return of the working shuttle, to the feeding end ofthe loom.

4. In s loom, thel combination with weftreplenishing two witnesses.

f; HENRY I. HARRIMAN.

Witnesses:

Crus. F. RANDALL,v .Evl'rrr J'. ANDERSON.

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