US1238378A - Weft-feeler mechanism for looms. - Google Patents

Description

WEFT FEELEH MECHANISM FDR LOOMS.

BMLOU` APPLICATIN FiLED DULBO. 1915.

Putfmted Aug. 28, 1917.

3 SHEETS-SHEET l.

[zwem for H. B.=.LLGU. WHT Fmi-H MECHMHSM Ffm www3.

3 SHEES-SHEEY 3.

Pateute Aug. 28, 1917.

nl n. a.

UNITED STATES PATEWI OFFICE.

EUGENE Ii. BALLOU, OF PAWTUCKET, RHODE ISLAND, ASSIGNOR, BYFDIBECT ND MESNE ASSIGNMENTS, TO DRAPER CORPORATION. OF HOPEDALE, MASSACHU- SETTS, A. CCBPOBATION 0F MAINE.`

WEFT-FEELER MECHANISIW FOR LOOMS.

Application led December 30, 1915.

To all whom t may concern.'

Bv, it known that I, EUGENE H. BALLQU, :L citizen of the United States, residing :it Pawtucket` in the county of Providence, Stute ol Rhode Island, have invvnted u cer tuin new nml useful Improvement in left Feeler Mechanisms for Looms, of whifh the following is :i specification. rvfvrenfe. being had therein to thv accompanying (lruwings. The invention comprises ilnprovvments in the` (le,lotion-tlvtveting :unl iluliouting mechanisms. commonly termed fvelor mechanisms, which :1re einploveil iu looms for the purpose of forostulling ronlpletv vxhuustion of the supply of weft'4 or tilliinhr ('ontniuvtl in the working Shuttlv upon thv ln)Y of :t loolu. 'lhvue ruvvlnoiihins` in glvuirul. nro contrived to inilirutv. or Cnllh or initinte". am it variously is tvrmvtl.. :i rhnngv iu thv, oprrzv tion ol" thv lornnnull hvretofore have lie-on progrvssiiotleplvtion of' thv :mill eupplx' lum roul'heil u Htngrv dvttiilvll upon us :l iuininnun. rlln` vhzxnge involvv,` in soinv ruses nliuu'uxiu: rvplvuiuhiugol' thv working lHupply' olt vit or filling; in other vusvs. it involvvs Stop pugv ol' thv loom.

'lhu ini'vntion has rvlution more particulnlllv lo vvlvnulvrlmuisms ol' thv measuring vines. l"vvlrrulvr'hunirunu of this vines urv, f'ontrollvll in thvir :nliou h5" thv `eizv ol' tho :supply ol' u'vl't or filling rouluinvtl in thv. Shuttle. ly thv. inlprovvlnvnts. u lnvfhunisln ol' sur'h vines is :ulnpivtl to initiate, prior to vuulisluntiul vxhuustion of' thv wvft or lilliugj` u serieu ol pirltv-l-ouutinnr opvrutiouul upon lvtvvtiup' rviluvtion of thv sziitli supply Io :l mvnsurell ipunutitr vxvevilingr thv prvtletvrmiuvtl minimum uuuutitv. :unl to cull :i rlmngv in the opvruliou ot' thv loom ut tho vlnl ol' u prptlvtvxniinvil svquonvv of residue-rv:hiring pif-kn hy whirh the iuitintory rvsirluo is wovvu ol lown lo thv pro- (lvtvrminvtl minimum ot' u'ustv.

llt inning thv :n'ton ofthv 'vvlor-inooho nisiu ol' u loom upon n uwusurvmvnttulivn whilv. thvrv wtill l'vlnnius :i l'vfiiiluv of weft nl illin,"lr ol' upprveiuhlv tlinlvnuion."` upon thv hohhin or olhvr \\vl`t-v:urivl. the iuvvntion oluizitvu thv tlvlicury :unl urufvrtuiuty of :ntion prevailing whvn lhonotiou is husvil upon :n mvusurvnnn( tulnu when `only u thin lnvvr voulplisingr u vonlpnmti\'vly l`v\\' voils or turno ol' \\'vl`t or lllling rvumins,y vupe- Specification of Letters Patent.

Putvnted Augf28, 1917.

serialrNo. 69,471.

oinlly when wen ving with fine weft or filling. The rirvumstunoos referred to have operated, in thv `use of the xneusuring feelers hereto` foro in use. tohring'nbout :L practice of Setting hy :uljnstmout the freier of u 100m to indicate. cull, or initiate n change when actuull;Y un excess of weft or filling still ref mains upon the oohhin or other, weft-carrier. The portion rennlining upon the bohliiu or weft-Currier herr-nes u'nste. The margin' of safety usually provided for in practice in mills entailsy nn uurlosirnhly large percentage of wagte, und consoquent loss in profits.

In Carrving the invention into effect I foinhinv with nnum4 for culling: u chungo in the operation of u loouu uml :i irontrollor for Surh uunns, :1 rontroller-,qt.vvrnor normally nvting through the controller to renale:- the Suhl moons inoperative` mul rlovices. which upon detection of reduction of the working :nipply of wvft or filling to a measured :unit-unt vxrvetling substantial oxhaution, initiate :t uvrivs of Contr'ller-gm'ornor actu fitting opvrutioiw lu' which. upon the 00m- ;firtzon m" :i prerlvterlninvtl numher of the s "Il fuwrutions. the rontroller-governfn ren-y `loro Suhl nwnns effective to will the change.

lrl'he invention oornprisvs various features whivh urn pointed out in Clnims-4 :it the close of this Speeilirution.

In vniholying' the prinriples of the inrention th(-` mvc'lmnif'nl coustruftion. :is Well :is thv :u'rungvnlvut of tho parts', may be mrvd more or lens to suit the views of the maker nml; luSvr. nml to moet the. special nvviiu in practice in the npplicntion and use of tin` l'vvlvr-ineeluiniSm in which said pirb "illvs' urv vlnhotliocl.

Tho drawings show u feelvrtlovice which 'wn-rveummls in vonstruction und general uunlv ol' opi-ration with n well-knoivn feeler- (lv\irv :it prvsvntl in general uso. and nV cntrollvr whirh in thv nnlin is of u well-known l'ornl. Inusznnvh :ls the prinriplvs of the in- \'vntion u rv npplivnhlo in connection with olhvr forum und urrnnyzvinents of fouler-devices :nul rtmtrollers, it is to he. understood thnt the claims thnt nre inntlo hereinafter are not rvstrivtvd lofvvlvr-1lerives und controllors like those Shown in tho drawings.

`lu thv drawings.

Figur-v l in u sitlv elm-:ation of certain pnl-ts ut thv l'vvlvnsitlv ol' n loom` including :in illuelrutive .unboilinivnt of the invention.

Fig. 2 is a side elevation of the said embodiment and the support therefor, on a larger scale than Fig. 1.

Fig. 3 is a plan view of the parts that are shown in Fig. 1.

Fig. 4 is a plan View of the parts that are shown in Fig. 2, omitting the loom-frame,

the scale bein the same4 as that of Fig. 2.

Figs. 5 an 6 are elevationA views of the parts shown in Figs. 2 and 4, partly in section on line 5, 5, of Fig. 3, looking in the direction indicated 'oy the arrows near the ends of such line, and illustrating different positions. A shuttle and bobbin are shown' in Fig. 6.

The feelcr-device shown in the drawings comprises the spring-actuated slide-bar 1 having its rear end shaped to constitute a feeling-head 2, the actuator 3 mounted pivotally at 4 upon the slide-har, and the adjustable bunter 5 carried by the actuator 3. At 6 is the feeler-stand or casing, having nido-ways in whichy the slide-bar and its orward extension 1 Work, and at 7 is the expanding spiral s ring contained within the said fouler-stan or casing and by means of which the slide-bar l is caused to assume its normal rearward position. As a convenient means of supporting the feeler-device in working position, the feeler-stand or casing 6 is shown attached to a carrier stand 71, which is secured by ai bolt or bolts 8 to a flange 9 of the usual bracket or plate 10 attached to`loom-frame 11 at one end of breast-beam l2, Fig. 3, the said bracket or plato having the slot 13 within which I the shippenhandle 14 (Fig. 3) works.

l5 is the springssupported pin upon the u ppcr end of which the forwardly extendinsr arm of the actuator 3 rests, and by which the actuator is held nornualiy` in an inoperative position, with the said arm elevated and thebunter 5 rearward. The pin 1S is carried and guided by a small casingF 16 in connection` with an arm 17 of the top of freeler-easing 6, and its actuating spring I8 is contained Within such casing.

Fig. Il shows, in position for presentation against the feeling-head 2, a wound mass 19 of weft or filling of full diameter carried by the bobbin 2O contained within the shuttle 21, the latter occupying in the ligure the shuttlebox upon lay 22 at the side of the loom at which the foelcr is located. Finis. and (i show thr openinor 23 in thc front-plato 2l of the said shuttle-box, and the opening 25 in thc front wall oi the shuttle-lady, through which the foolinghoafl enters the shuttle to feel against the wett-mass.

heretofore, while tho welt-mass lil is of suliiciont diameter, :is in Fig. 5l, the sur fau-.o thereof will engage with the Feelinghcarl 2 during tho advance of the lay, and

. push the fcelcr Forward without permitting engagement between the front wall of the shntt e-body -ynd the hunter 5. Every time this action takes place, the actuator will retain its normal, inoperative, position upon thc fecler as it goes forward in unison with the latter, and the stroke thus communicated to feeler and actuator Will be an idle one. When the portion of the weft-mass that is presented to the feeling-head is reduced in diameter to an extent permitting the head of bunter 5 to engage with the front wall of the shuttlel before the reduced weft-mass. engages the feeling-head 2, the ressure of such wall a einst the said hea willhave the eil'ect ci: turning the actuator 3 upon pivot 4, as in Fi 6, so as t0 depress the forwardlyezttendlng arm of the actuator into operative position. In -practising my invention, the bunter 5 is so adjusted that the depression just referred to will take place at a somewhat earlier sta e than heretofore in the progressive dep etion of the weft or filling mass. This depression of the said army is utilized to actuate the controllergovernor, primarily for pick-counting purposes and nally for causing or permitting the controller to call into action the parte that `.are more immediatel concernedbin bringing about the change in the operation of the loom. l The controller for the said parts is itself indirectly under the control of the feelerdevice through the controller-governor, which latter is controlled directly by means of the feeler-device, through the actuator when the latter is given its depressed posi,- tion imthe feeling action. In the present instance, 'the controller comprises a hori Zonta] rockshnft 26 extendingr in the direction of the length of the breast-beam and mounted in bearings provided in connection with a small stand 27 that is attached to the front of the breast-beam. At its outer end the controllenrockshaft is combined operatively with the controller-governor; at its inner end it is combined operatively with the parts for bringin about the change. In this instance the roc {shaft 26 at its outer Vend has an arm 28, 28", through which it is controlled by the controller-governor, and normally held in a position which keeps elevated an arm 29 at its inhcr end; at its inner end it hns the arm 29, which is provided with un inwardly hout crank-pin 30 entering a longitudinal slot 3l, Fig. l, in a catch 32 120 that is hung ut ils front ond by moans of a pivot lJ-l upon un arm 34 mounted upon the controlling rm'kshaft 35 for the replenishing instrumcntalities, or stopping mcchunism, ctc. As usual, so long il as the said controller is kept in its normal position with `arm 2) elevated it keeps the catch raised thc sairl arm, thc turning :'novcmcnt of the. controllo:- por-:nitsy tlncatch to entcr the said path. Whcn thc @atriln-r linils tho catch in its path, it rngragrcs with thc f'alf'h and pushos thc lattrr forward. thcrchy rocking thc controlling rorloshall IE5 :nul calling thc hangin 'lhc invention is not rcntrictcll to thc cn:plogvincnt oi this parliinlar :ncansI ol oontrollifng through n ronlrollcr linJ parts lor hring'inor ahonl a chang-n in thi oporaition of 'a loom.

The rontrollcngovcrnor rompi-inno :l mann hr1', in lhis installi-l' a whool fit?. which through its cngagrnicnt Vwith an arm olt thc controllcr, in this raf-'v ihr` arm r2.. 29.. gow rfi-ns thc controllcr anfl ratoh1 and thai-why governs: thc ongagfmnrnt o'l" tho catch hy ihr striker. The saifl nicmhcr prcfcrahly, as hcrcin, is so construrrtcfl nini roinhincll will: thc said arm that norinalhv it hoops the raich ont of thc path of thc atrilwr, Also, so, that through its morcnwnt it pci-:nit ihn rontrollcr to Opf-rato at a proflctcrmiiiwl point in such niovcnnnt to plano tho Patch in tho path of tho `itrilrr. This gcnoral mollo of govcrnanfc is not in .':ll casos; canon tial to th(` invcntion hun :i rotary :'inrr'il lm gowonior in wiplovml. li.: this instancil'ho whocl 29 is* a pcriplnirai ran: which liv cngagcmcnt with a lnlL l fifi proinling from arm Q9, 283. linups 1in-h arm felci'atcrl. :unl tl'icrohjv locks thc controllo:- ina position in nhirhjt holdsl tho ralrl: ont of ihr. path of.

th(` Slrihm'. until a noti-h 40 in lln whocl is prcan'nlwl to tho lng. "Fhornin'nm tho oontrollci' turns so that lh: lng villars; into lho notch` amil this turning' inovrmcnt is accom panicfl hjv lnovcmcnt ol tha oatrh into the path ol" thov slrilor.

Thr actuation oi' (hc controllor-gorornor hy means of tho fcolnr-lovie'r may ha ollor't wl in various Ways. Within thc ln'oairl principles ol' my inrontion. lian-in. il is proA durcfl through tho ongzigemont of thc actuator 3 with a ratchet-wheel 4l when tho Shuttle ongagcs tho himfcr 5 so as to flcprlnf;4

hronghl aronnil to thv lug! fifi :unl tlw lattfrv colors imo tho noir-h. llolnntl-apiing 42 (hat rnLfaQcs with th:l volh of lhsv ralr'lutn'horl sario; lo proront roti-agrada turning of tlnnonirollorlgowrnor.

Stating' lheaction hril-lly: rvfrjif timo` tho weft-mass contained in the shuttle pushes thc 'fcolcr forward throligh contact with feeling-head 2 without permitting the shuttlehorly to n gage with the bunter 5, the actuator l will lgo forward Without engaging the rai'chet-Wheel. and conscqucntly thc controllcihgovcrnor will romain in its Starting position shown in Figs. 1,2, 5. When, howcvor, the depletion of tho weft-mass reaches a, atagc in which tho fooling-end 2 Will enter so 'far into thc shuttle that the shuttlobody will he pcrmittcd to strike against bunter 5 :unl turn actuator on its pivot 4, thc free r-lnl of thc actuator will hc caused to cngagc with the tenth of the ratchct-whecl, and then lthrough tho, forward movement communi- (fateli to the fcelcr and actuator the actuator' will hc caused to turn the controller-gov rrnor arounrl part Way, as in Fig. 6. At sulmoqucnt .teachingr actions following returns of thc shuttle to the fcclcnsifle of the loom, tho stnohwstcp turning of the controllorgovcrnor will proceed until lug 39 entcrs noti-h 40, such nntry boing;r followed by en- ,Qafrront of ihr cal-.ch by the striker` this liv-ingingl aliont tho change.

lt is 'lrsirahhto scour-c thc :nlvantag'o ol' hasinpj upon an initiatory rcsirluc of wcft or lilling ol convcnimitly largo dimensions thc critical nwasnrcnimit lili' which thc artion ol [hc controller governor is initiated, Accord ing'ly. prclcrahly, l wt hy adjustment tho hnntrr l oi thc fcchrrllvicc to roffcivc thc impact ainl pre-Swirls ofiho shuttlohorly Whilo lhcrc still rcinaiim in ihn simil-,lo an amount .of watt or liliinff sulliricnt to pol-mit a fairlv f-onshlvralilc nnnihor ol" picks of thi*f shuttlel lo lala: piaf-n hcl'oro lhc prorlotormincll ahso` 'Into :nininoun rcnchcrh :inil I pl'ovidc `for an :lotion of lin` controllor-govrrnor pormih lingr a Hcquonro oF rcsirlulhrolluringr pirlts prclcrahlv including: two or morel rolurnn` ol' lin: .rhnlllo to tho fcvlrr-siflc ot' thi` loom. A smallor nuinhcr of rosilluc-rorlnoing picks will not provirll'u, in somo casos, for a Sullirricnt nml practical lliflorcncc hctwccn tho. initiator \7 rcSifluc anrl thcA absoluto or final minimum.

Tho nnmhor of pick-oo:intim;` opcralions prior to calling thc vhango in thc opcration ol' thc loom may lw varirrl h v'ohvious 'l\anful.-; in tho ronstrlntlion. Moro` lhan ono notch may hc prox'illoil in (hc 'whcol 38, so that a chanac may hn brought about h v loss than a` complain rotation of thc controllrr-govcrnor. Tn tho rasopl inc yarn a4 grrrator nnmhor of tlnpirk-connti:nqr opcrations will ha ncrossary than in lho caso of rom-sc yarn.

l provillc moans for automatically react tifa? tinl conirollcrugovornor. ln this instanrc thc lug! 39 of arm 23. 29", is proviillfl upon thc por-lion QR" oF auch arm. :unl tho said portion is' fnrnishml with :i flownturnuil loc 42%, For coiiporalion with tlu- Suhl loo thc lay is l'urniHln-l with a` huish-r 41, Figs.

lll?) 1 and 3, thatA rejects forwardly from the lay-beam. So ong as a full portion of the periphery of wheel 38 is presented under lug 39 and the arm is held elevated thereby, the toe is kept raised out of the path ofthe bunter 44. When the final step-movement of the wheel is caused to take place, just as the lay completes a beating-up movement and the notch 40 thereby is presented under the lug so that the arm is permitted to'drop the toe 43 passes down at the rear of the upturned engaging end of the bunter 44, which at that instant is in its most forward position. The ensuin rearward movement of the lay causes the unter 44 to raise the arm as the said hunter passes backward under and past the 'beveled-off lower end of the toc, and then the arm drops again, with the lug,r 39 Within notch 40. As the lay beats up the next time, the end of bunter 44 encounters the toe 43, and drives the toe and the member 28* of the arm forward. To permit member Q8 to move relative to mernher 98 it is mounted slidablv upon the latter, with loops 4.5, 45, of one member embracing the other member. A screw 46 carried by member 28 Works in a longitudinal slot 47 in member 28, and a. contracting spiral spring 48 engaged with the said screw and with a pin 49 projecting` from member 28 exerts its tension to hold member 28 in its rearwardly extended position as far as per-- mitted by the engagement of screw 46 with the rear end of slot 47. Springr 48 yields to permit the member 28 to be driven forward upon member 28. As member 28* goes forward. the straight back of the lug' 39 acts against the front wall of notch 40 and rotaies the wheel 38 forward a step farther, thereby giving` the Wheel its starting position. As the lay goes rearward again, spring 4R arts to pull member 28 rearward, and the. inclined rear sido of the lug rides up over the corner at the top of the rear wall of notch 40, so that the lug passes out upon the periphery of the wheel :and remains restiupr thereon. Detent 41 holds Wheel 38 from reverse turningr movement as this action takes place.

Tn some cases I may so construct and oomhine the parts that the Wo't-feeler device will serve to give to the wheel 38 its first movement from the starting position thereof, and other devices will thereupon act to communicate to the wheel its successive. pick-counting movements.

lV claim as my invention :M-

l. In a loom, the. comhinatimi with uuuns for calling! a change in the operation thereof. and u. controller for such means. of a rotary conHoller-governor, and a fcelvndevico operatively combined with the .said controllei' governor and adapted to turn the sume slep-liv-slep on successive 1l'ecliug :u'-

f tions following leiiuztioll olI depletion oll the working Wet-supplty)y hined with and to a predetermined initiatory residue, and y such turning render the said means operative to call a change uft'cr a predetermined sequence of residuereducing picks.

2. In a loom, the combination with means for calling a change in the operation. there of, and a controller for such means, of a controller-governor Vengsgin With the controller to give it.normal y a position corresponding With functional inactivity of th'c said means, said controller-govemor having a series of ratchet teeth, and a feelerdevice adapted to actuate said controller governor throu h said ratchet teeth to render the control er and said means effective to call the change after a predetermined sequence 'oi' residue-reducing picks succeeding detection of a predetermined initiatory residue of weft or filling.

3. In a loom. the combination with means for calling a change in the operation there of. and a controller for such means. of a rotary controller-governor engaging: with the controller t0 give it normally a position corresponding with functional inactivity of the said means, and a feelor-device adapted to actuate said controller-governor to render the controller and said moans effective to call the change after :i predetermined sequence of residue-reducing picks succeeding detection of a predetermined initiutory residue of weft or fillin 4. In a loom` the comination with means for callingr a change in the operation thereof, of a rotary governor operatively com bined with and governing the said means, and means adapted'to tarn the said rota ry ,qm-cerner step'by-step through a succession of picks following detection of depletion ni the Working' Wet-supply to a predetermined initiatory residuo, and through such turning render the said means operative to call n change after a predetermined sequence of residue-reducing' picks.

5. In a loom, the combination with means for calling a change in the operation thereof. of a rotary governor operatively comgoverning the said means, and a. feeler-device operatively combined with said rotary governor and adapted to turn the same stepbystep through a succession of feeling actions following detection of depletion ofthe working weft-supply to a predetermined initiatory residue, and through such turning render the said means operative to call a change after a predetermined sequence of residue-reducing picks.

6. Tn a loom. the combination with means for calling a change in the o eration thereolf, of a cam-wheel, means a apted to turn tho said cam-whee1 stepby-step through a succession of picks following detection of depletion of tho working weft-supply to renders said ineens lor calling a change and :fr controllo.'- Afor ne a, predetermined initiatory residue, and means through which Said canrwheel controls the said means for calling a change and renders the latter omfrative to call the change after a }K red.\termined sequence of residue-reducing picks.

7. ln a loom, the combination with means f or calling; u. change in the operation thereof, of a cuni-Wheel, a ratchet-wheel operatively combined therewith, n welt-ieeler, means connected therewith for turning the Said cani-wheel on successive feeling actions detecting reduction ol' the working supply of Wett or filling to 'and helow a predetermined initiatory residue, und means through which after a predeterinined sequence of residue-reducing picks the said cani-wheel operative to cull a change. Y

P. ln a loom, the combination with means for calling a cli-.ingle in the operation thereoli, of aA :uni-.vlicel, a ratchet-wheel operatively eornhined therewith, n weft-livelli', means connecteiil therewith for turning: thc said cam-wheel on successive fev-[ling :Lr-lione detecting reduction ot' the norlaing supply of weft or fillingl tohnd below a pre1 lel'erA mined initiatory residue, und n controller controlled hy the .nid cam-Wheel and itself controlling the said ineens for calling a change.

9. In aflooin, the combination with means for calling a chal'igein the operation thereof, of a cani-wheel, a ratchet.-Wheel operatively combined therewith, means adapted to turn the said ratchet-Wheel and cam-wheel step-hy-stop through a Csuccession of picks, following detection of depletion of the Working 'defr-s'upply to a predetermined initiatory rerlidnc, and a controller controlled by the said ce 1n wheel und itself controlling the said menne i'or falling a chungo.

1th ln '.1 loom, the comhinfition with mea for calling a ciano!L in tho operation thereo l", n'ioanrf, of a loi-ary governor which controls said controller, devices which upon detection of reduction of the working supply of weft or filling to a predetermined initiatory residue initiate and canse a succession of step-loy-step movements of the Said governor and thereby through the governor and cor'itroller, after n4 predetermined series of ,residue-reducing picks, render said moans` for calling a change operative telic-all a change, and means for placing the siaid rotary governor n1 Starting position forlthe next succession oi movements.

1l. In u loom, the .:ombination with means for calling a change in the operation thereof, and. a controller for said menos, of a rotary governor which controls Suid controller, n V

weft-feder which hy a Series of feeling neV tions following, detection of reduction of the 'working supply of weft or filling to e, pre

determined initiatory residue causes pro eesivo movement of Said ,governor and t erehy through the governor and controller renders said means for ,'calling u change opera.- iive to cnil a change after a predetermined sequence of residlle-reducing` picks, and menus for placingr said rotary governor' in starting position for the next succession of movements.

12. ln a loom, the combination with means for calling a change in the operation thereof, of n rotary governor operatively combined with and governing the said means, means adapted to turn the said rotary4 governor step-by-step through a succession of picks following detection of depletion of the working weft-supply to a predetermined initietory residue, and through euch turning ren der the said means operative to call a change after a predetermined sequence of residue` reducing picks, and means for placing said rotary governor in starring position for the next Succession of turning nnrvements.

lf3. ln a loom, the romhimitimi with means ior calling,r u change in the operation thereof, of a cam-wheel, means adapted to turn the said cani-fulano? xehfp-hy-step through a succession ol' pluim lillowing detection of depletion of the working); weft-supply to a predetermined initiatory residue, means through which said cam-wheel controls the said means for calling a change and renders the latter operative to call the change after a predetermined sequence of residue-reducing picks, and means for placing said camwheel in starting position for the next succession of turning movements.

14. In a loom, the combination with means for calling a change in the operation thereof, and a controller for such means, having an arm provided ith a rolatively-movable member, of acum-wheel engaging with said member to govern the controller, means adapted. to turn said cuni-wheel step-by-step through a succession or picks following detect-ion of depletion of the working weftsupply to a predetermined initiatory residue and thereby through the cam-Wheel vand con troller after a predetermined series of residue-reducing picks render said means :Sor calling a change operative to call a change, and means for noting throu h said movable member to place the oamlweel in Starting position.

15. In a loom, the cr.mbi1mtion with means for calling Va change in the operation thereof, and a controller for Such means havin an arm provided with a relatively movab e member, of a governor-wheel having a mun-portion, means adapted to turn said wheel step-by-step through a successionof picks l'ollowing detection of depletion of the M )rking weft-supply to a predetermined init-iatory residue and thereby through the said cam-portion and the controller' elterv a predetermined series picks render said means for calling a change operative to call a change, and meafns moving with the lay adapted to actnate said movable member and through engagement of the latter with the wheel at the cam-portion place the Wheel in starting position.

16. In a loom, a weft-feeler, and means for calling a change in the operation of the loom, of a rotary controller overnor provided with a notch and adaptecltobe operated by the said weft-feeler, a controller for the said means provided with an arm having thereon a spring-controlled movable member furnished with a lug normally resting against the controller-governor and adapted to enter the said notch when the latter is presented in position to receive the lug, such entry permitting action of the controller by which the means for calling a change is ren dered effective to call the change, and a bunter moving with the lay, andadapted to engage the said member when the lug occupies the notch and as a result of such engagement actuate the member to turn the controller-governor into starting position.

1i'. In aloom, the combination with a lay, a weft-feeler, and means .for calling a change in the operation of the loom, of a rotary controller-governor provided with a notch and adapted to be' operated by the said weft-feeler, a controller for the said means provided withan arm having thereon a spring-controlled movable member furof residue-reducing the combination with a lay nished with a lug normally restin against the controller-governor and adapte to enter the said notch when the later is presented in position to receive the lug, such entry per mitting action of the controller by which the means for calling a change is rendered eiiective to call the change, and a bunter Amoving with the lay, adapted to draw out from under the said member when the latter drops behind the same, and .to engage in the advance of the lay with the dropped member and as a result of such engagement actuate the member to turn the controllergovernor into starting position.

18. In a loom, the combination with means .for calling a change in the operation the-reef` and a controller for such means, of a coutreuer-governor coperating with said controller and having a series of ratchet teeth` a normally ineffective actuator adapted to coperate with said ratchet teeth to move the controller-governor step by step, and a feeler device which renders said actuaA tor effective to engage said ratchet teeth so that the said change controlling means are brought into action after a predctermincfl sequence of picks succeedin detection of a predetermined initiatory residue of weft.

In testimony whereof I aflix my signature in presence of two witnesses.

EUGENE H. BALLOU.

Witnesses:

CHAs. F. RANDALL, ELLEN O. SPRING.

Images