US1739188A - of worcester - Google Patents

Description

Dec. l0, 1929. K. J. UNwlN 1,739,188

SIDE SLIP WEFT DETECTOR Filed May 25, 1927 IZ J0 JI J3 Hita/wey:

Patented Dec. 10, 1929 l gumrmsTAT-ES "oFFloE KENNETH Je UNWIN,.IOF AWORCLESTIE.IR., MASSAOHI'SETTS, SSIGNOR'TO CROMPTON & KNOWITES LOOM TORKS,l OF WORCESTER, MASSACHUSETTS, A CORPORATLVION OF MAssAonUsETTs a .y

Application filed May 23,

When detectors are ,applied to the usual form of multi-color magazines itis customary to vconnecttli'e same with a controller pin which is normally inthe path of anv actuatorv forth a weft detector formed of a single piece of wirewhioh is npivoteddirectly t-o the controllerl pin. Inthat application aA pair of springs 'aresetiorth, one .acting directly on the controllerl pin to movefthev same Vrearwardlyand the other interposed between the controller pin and the detector to hold the lat# ter in proper angular position lwith respect to its pivot so as to beengaged by the advancing supplyY of weft. -Y In carryingout the'Frechett constrnc'tion it isnecessa'ry'toY employ a moving arm'secured to a roel; shaft around which lies a'torsion spring, -thes'evparts being customary in the form of feeler setiorth-in pat` ent to 'Ryon, No. 972,722. It is an important object of my present invention to retain all of the movements of the feeler set ferth in the forth therewith.

` .with these and other Objecten View which will appear as the description proceeds, my invention residesl in the combination and ar# InV copending application Ser. No. 190,091, liled by Frechett there is set 1927.v serial No. 193,420.

rangement of parts hereinafter described and set forthin thel claims. Y

,1 In the accompanying drawings wherein a convenient embodiment of my invention is set fort-h5' Y Y Fig. 1 isa top plan view of my detector certain 'parts being-in section, the detector being shown in normal position in dotted lines and in non-'indicating detecting position in full lines y L i Figg2 is an end elevation looking in the direction of arrow 2, Fig. 1, certain parts being ink sectionrfor .the sake of jclearness;

Fig.l 3y is a front elevation taken in the direction of arrow 3, Fig. 1; 1 v y l Fig. 4is a view similar to Fig. 1 but showing the `position the detector assumes when indicatingweftexhaustion; and,

Fig.,5 'is a detailed enlarged rsection on line 5`5 ofFig. 2.

Referring tothe drawingsl have 'shown a stand 10 provided with a-vertical slot 11 eX- ktending' substantially parallel yto the length fof the shuttle S' and have indicated anactuatorlever 12 the right end of which moves up and downin the slot 11. lA. hole 13 extends transversely across the slot 11 and receives the rear-l endof a controller pin 14 which under normal conditions lies under the actuator llever 12.; So long as yweft is present in suiiicient quantity kthe'controller lpin 14 will be moved ifor-'wardlfyV from lunder the lever'i12 sov that the latt'erf will move downwardly without interruption but when the weft is substantially exhausted appropriate mechanism will operate tovleave the controller pin 14 under the actuator lever so that downwardmovement of 'they latter-isfinterrupted to initiate replenishment. The matter thus far described is more fully. se-t '`v forth in patent to Ryon, No. 1,030,748, to'lwhich reference may be had. A support 20 is provided with a horizontal slot 21 tlhir'oughwhich extends a securing bolt A22, 'said bolt 'extending also through a vertical slot`23 formedinthe foot 24 ofl a feeler bed 25'.l By-means', of the bolt and' slots described Vvertical and horizontal ladjustment of the feel''er'bedr'nay be obtained. f Q-"Said has'fstruckv upwardly therefrom 'a pair' ofguides`2'6 and'fsad' bed is further los provided with a flange 27 receiving holes 28.

rlhe detector is preferably formed of a single piece of wire 30 having the rear end formed as indicated in Figs. l and 4 with weft engaging teeth 3l. Said detector eX- tends forwardly'under the guides 26 and on the bed 25 and is bent as indicated in Fig. l to have a notch 32 and to extend laterally to the contro-ller pin 14 asat. The forward left end of' said detector isi'hent d'ownwardly7 as at 34 to extend through the controller pin and any convenient securing means. as a cot`YV ter pin may be employed. l

lhile the function of the controller pin is the same as that. set forth in the aforesaid patent to Ryon yet it is given. a l irrnnrrrting unlike that set forth inthe patent.` sup"- portingithe forward end of the cont'lOllel' l provide an upstanding arm 40 boltedas at 41 to the support 20 and provide Ysaid with a h 'ore through which the forwa@ end of the controller pin extends.Y l provide a sliding guide for the controller pin whereas in the patent previously mens: tioned and in the construction heretofore used the forward end of the controller pin has heen held at the upper end' of a pivoted arm. ln order to limit rearward movement of the controller pin thread the forward end of the same as at 42 and provide the saine with a pair of' lock nuts 45 the rear one of which is adapted to engage the arm 40 to adliustahly limit rearward movement offthecontroller pin. In order that the moving parts previously described may he yieldingly Vheld normally in rearward position l provide a single tension spring 50 the rear end of which is received by one or another of the holes l28 and the forward end of which is received hy the notch 32 of the detector. Said spring acts not only to hold the controller pin 14 yieldingly under the actuator lever `l2 hut also holds the detector 30 normally in the rearward dotted position shown in Fig, l. rllhe effect of said spring is to turn the detector around the depending portion 34 as a pivot and this turning movement is limited by the left end of one or the lother of the guides 26. As shown herein l have indicated the rear guide as serving to .stop 4left hand movement of the detector although the for,- ward guide could perform the Same function or if desired both parts GQlllCl accomplish this result.

Under normal conditions the parte are in the dotted line position shown in 1 and when a sucent supply of ,weft is on the boh: bi1- 1 the parte will be moved forward-*1r to the full line position Sh-QWH in Said Fie? .1 the .action of Spf-ins 520.- Unler there cQllditions controller 14 will move forwardly and the actuator- ;leverwill be depressed With.- out interruption. 'lhen insufficient weft remains on the `hob'hin B lierrever, the detector wir wing .aber e@ entre am pivot to assume the full line position shown in Fig. 4. Due to the action of spring 50 the detector will not only move along the hohhin but the controller pin 14 will remain in the path of the actuator lever 12 and downward movement of the latter will he interrupted to initiate replenishment.

Transfer mechanism indicated at T will move forwardly on the subsequent pick to engag'ethe arm 33. of' the detector and not only move the detector out of the path. of the incoming hohbin but also move the controller pin 14 forwardly to prevent repetition of the indication.

Frein the foregoing it will he seen that l .have provided a very simple side slip weft detector adaptable to multi-color magazines wherein the 'detector is preferably located on the magazine side of the loom. In will he seen that the controller pin is adjustably limited in its rearward movement and is formed with a pair of slide guides so that the same moves in a fixed path and it will further he seen that the single spring 50 serves the dual function of returning the detector to normal position after hoth indicating and non-indi 'eating detecting movements and also moves: the controller pin to its normal position under the actuator lever l2. l do not Wish to he limited to the particular mounting for the con- :i

troller pin as it 1s apparent that the con struction set forth is not the onlyv means for holding the controller so that the same will not molve to theright hut will move in a path substantially perpendicular to the axis .of the shuttle so as to provide a pivot with the forward end of the detector such that the latterwill always he properly placed with respect to the shuttle.

Having thus described my invention it will be apparent that changes and modifications may vhe made therein hy those skilled in the art without departing from the spirit and `scope of the invention and l do not wish to be limited to the details herein disclosed, hut what claim is:

l. In a side slipping weft detector for a loom having a regularly moving actuator to initiate replenishment and a weft surface to be detected, a controller' normally in the path of the actuator, a weft detector pivoted directly to the controller and having a portion .offset from the Yavis of the controller to engage the surface to be detected, and .a single resilient means having one end fixed and the other Tf end attached to the `detector at a point lic-tween the pivotal connection thereof on thc control `ler and the part to `engage the weft sui-fufto he detected, ysaid controller and detector moving forwardly when weft is present against the action of the resilient means and said detector sliding along the surface when *,sulostantially lexhausted to have a pivotal -`n ioverne,nt with respect to the controller against the action of the resilient means,

2. In a side slipping weft detector for a loom having a regularly moving actuator to i initiate replenishment and a weft surface to be detected, a controller normally lying in the path of movement of the actuator, a detector wire pivoted directly to the controller and having a rearwardly extending portion offset from the pivotal connection to engage Y the surface to be detected, and a single resilient means connected to the detector exerting a yielding pressure on the detector to move the latter toward the surface to be detected and also holding the controller yieldingly in the path of the actuator, said detector and controller moving forwardly against the action of the resilient means when weft is present and said detector moving laterally along and in contact with the surface when the latter is substantially exhausted against the action of the resilient means, the resilient means acting to hold the controller in the path of the actuator as the ldetector slides along a denuded surface.

Y3. In a side slipping weft detector for a loom having a regularly moving actuator to initiate replenishment and a weft surface to be detected, a stand, a controller slidablyk mounted on the stand and having a portion normally inthe path of the actuator, a detector wire pivoted directly to the controller, and a single resilient element connected to the detector wire between the controller and the rear engaging end of said detector wire and acting to hold the detector and controller in normal rearward position and acting to return the detector to normal position after side slipping movement, said detector when in contact withsulficient supply of weft moving forwardly to move the controller out of the path of the actuator andsaid resilient means acting to hold the controller in the Apath of the actuator when the detector slides along and in contact with the substantially exhausted, surface to be detected.

l. In a side slipping'weft detector fora loom having a regularly moving actuator to initiate replenishment and a weft surface to be detected, a stand, a vcontroller guided in rthe stand and having one end normallyv in the path ofthe actuator, means carried by the controller to limit movement thereof toward the actuator, a detector element/pivoted directly to the controller and having a rearwardly extending portion offset from the controller to engage a surface to be detected, a single resilient means connected to the Idetector wire between the controller and the rear engaging end of said detector wire and acting on the detector to move the same to normal rearward position, and to restore the detector to normal position after angular movement, said yielding means serving also to hold the controller normally in the path of the actuator, and a stopA acting to limit `the movement of both the controller and demounted on the stand and having one end to cooperate with the actuator and the other end extending forwardly beyond the stand,

stop means carried by the forwardly extending end of the controller to engage the stand and limit rearward movement of the controller, a detector element formed of a piece of wire pivoted directly to the controller and having a rearwardly extending weft surface engaging portion oifset from the controller, and a single resilient means acting on the detector to hold the same yieldingly in rearward position and to restore the detector to normal position after angular movement, said yielding means also holding the controller in operative relation with respect to the actuator, the detector moving the controller forwardly out of the path of the actuator when in contact with a sufficient supply of weft and said yielding means holding the controller in the path of the actuator when the detector slides along a substantially exhausted supply of weft.

6. In a side slipping weft detector for a loom having a regularly moving actuator to initiate replenishment and a weft surface to be detected, a controller normally lying in the path of the actuator, a detector wire piv- X Vcontroller pin and the weft engaging surface of the detector, said spring exerting a pressure on the detector tending normally to hold the latter in normal rearward position again st the stop and to restore the detector to normal positionV after angular movement and said spring also holding the controller yieldingly in the path of Ythe actuator, said detector moving the controller out of the path of the actuator against the actionA of a spring when suflicient weft is present and said spring holding the controller in the path of the actuator when the detector slides along a substantially exhausted supply of weft.

In testimony whereof I have hereunto affixed-my signature.

KENNETH J. UNWIN.

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