US1440981A - Weft-replenishing loom - Google Patents

Description

2' sen-SHEET 2 Jan.' 2, 1923,

: H. H. COVE.

WEFT REPLENlsHlNG LooM.

FILED FEB'. 23, |918.

MN5/MTU@ several gures.

Patented dan. 2,

atrae l mit Platelet isi 1.

id las Le @sie HENRY-H. GOVE, 0F BIDDEFORD, MAINE, ASSIGNOR OIF ONE-HALF TO HOWARD R.

' WHTEHEAD, OF SACO, li/IINE. `"1

WEFT-REPLNISHENG LOOM.

Application filed` February 23, 1918.` Serial lo. 218,614. l Y

citizen of the United States, residing at Biddeford, in the county ofYorlr and State of Maine, have invented certain Improvements in left-Replenishing Looms, of which the following description, in connec" tion with the accompanying drawings, is a specification, like reference the drawings indicatinglike partsl inthe This invention relates to weftweplenishing looms of the typefrequently referred 4to as feeler looms and exemplified by the weliknown Northrop loom, Looms of this type comprise a hopper or holder .for a series of full bobhins,"a mechanism for effecting the transfer of a full bobbin from the'hopperI to the shuttle,` and a feele'r mechanism that controls this transferring mechanism. The rangement is such that when the feeler mechanism detectsthe fact that the 'illing on the hobbin ofthe running shuttle is nearly exhausted it'throws the transferring.; mechanism into operation and this mechanism inserts a full bobbin in the shuttle causing it to displace the substantially empty bobbinfrom 'the shuttle.- When this bohbin transferring or weft-'replenishing operation is performed it! then becomes necessary to dispose of the section vof weft thread that eX- tends from vthe selva'ge the goods to the ejected bohbin, since Votherwise this thread may be carriedback into the goods'and produce a flaw in the cloth. 1 This problem has proved exceedingly Itroublesome and has been thecause of very. extensive experiments which have served vto partially remedyV the diiiculty hut have not resulted in producingl satisfactoryy solutions for the problem.

The present inventionis directed tothe improvement of both "ft-he methods and thev mechanisms now employed to dispose of this waste sectionof weft and it aims to satisfy the practical requirements presented hy the conditions above described.

" The manner in which itis proposed to accomplish these objects will he readily underi stood .from the following' description and the novel features of the vinvention will be pointed out more particularly in the appended claims. Referring now ings: y y

lFigure v1 is a plan 'view of those parts of to the accompanying` drawcharacters` on shaft 6 in an automatic loom to which reference isnecessary for the purpose of describing the present invention and it shows the loom equipped with mechanism embodying the Vpresent invention;

` Fig. 2 is a vertical, transverse, cross sectional view through the mechanism shown in Fig. 1; y

Fig is a view similar to Fig. 2 'but show-l ino theparts indifferent positions;

l is a side view of apart of tie mechanism shown in Figs. 1, 2 and 3, illustrating vthe partson a larger scale;

(not shown) operates when the filling in the running` shuttle is nearly exhausted to turn a ro'cl; lshaft 6, mounted below the breast beam and extending parallel. to it, and this motion is transmitted through an a .n 7 and another .arm 8, yieldingly associated 'therewith,.to raise the arm 9 which is pivotally mounted on a stud 10. This arm constitutes carrier for a shuttle feeler or protector 12 and the rocking of this arm moves the-shuttlegfeeler 12 from its normal or retracted position, in which it is shown in, Fig. 3, to its advanced position, as shown in Fig. 2.

All vof themechanismso far described may V be of any suitable or convenient form, the arrangement shown being; substantially that disclosed in the RhoadesTatent No. 922,511, granted May 25, 1909.

l.The act of partially rotating` the rock addition to moving the Yfeeler 12 in front of theshuttle 14:, which at thistime 4is in the shuttle boi; e, and enabling` it to confine a shuttle inthe shuttle boX, also initiates the bobhin transferring `or weft-re plenishing mechanism. This operation is `effectedA by a transferrerior a hammer and fork "15, Fig. 6, which forces a full bobbin 16 out of thevcarrier or hopperv 17 vinto the shuttle 14E, and causes this hobbin to eject the substantiallyr empty bobhin from the shuttle.

ioo

to bobbin which-had tofbe SinceV the mechanism required to v perform this TGPBIROII is well known to thoseiskilled in this art and is in very common use in the trade, no detailed illustration or description .5 .'.oritisfnecessaryi.herek t As above explained, theact-oililling-,replenishment leaves a waste section ofweft i v trailing behind the shuttle and extendingto the selvage of the goodswhicli must be dislk posed of. According tothe present inven- 4tion.- this result `is` Aeffected by cutting the ,weft closeto` the ejected bobbin, preferably Vat a point within 4,the shuttle,` thenwithdrawingthe trailiiiqsection ofthe filling or `l5 weft from the path of movement oi' the shut- .,tle and. severing'. rthis from the` goodsby partingit .substantially at the selvagge oi the cloth.v y IShuttle constructions have Y beenY proposed heretoforein .which :a vcutting mechanism was. employed, .to sever the yfilling` between fthebobbin. and the eye ofthefshuttle and any suitable construction of this type may .be .employed in practising the presentinvenl,25 tion. I prefer, however, toinake useoflthe shuttle cutter disclosed ,in myapplication liled l of r even` `date herewith. This constructionis showniin ageneral lway in `(hand comprises a plate 18 mounted Vin thesliuttle ,between the tipof ,the bobbin 19 and the eye `ol" the ,sliuttle,this platebeingprovided with an aperture through which thewei't is guided, on itsway to the shuttle eye. Two blades 20. and21, vconstitutingshears, are mounted 5, ,on pivot22. located immediately below` the 4thread :guiding aperture Vabove mentioned. ,lilachof these-blales20 andy21` consists of a ,bellpcrank lever, `and they are connectedv by e links 23 and 2a,A espectivel v,.to rock shafts 25 andv26, which;are-mounted.in the/plate` lSandterminate in wings 27 and 28, respectively; Theserwnus pro-ject into the patho'l movement ofthe tip of the incoming,bobbin` sol` ,that the actot (forcing a full bobbin 16 l5 .intothe ,shuttle .to Atake theplaceot the empty `bobbin,actuates the shears and causesthem to,se ver thelillingvery'close to the tip ot ythefbpbbinl i l .'T 1141s operation takes place substantially (1,50simultanjeously ,with the ejection of the yempty bobbinso that the use` offthis construction a voids' the presence of i anv 1 lons `illing end trailing beliindsthe bobbiii.4 as it drpps downfthroughtheshuttle b oX and out of theinachine. Thustlie trouble heretofore ,ezperiencedA with `prior constructions in which the'fjilling was severedia-ta pointoutsidewthe shuttle,-,aiidwhich resulted Vinleavingl'aulongfillingeiid trailing' behind .the

pulled throughy the fsliuttlefeye bythe" bobbin, is completely rLavoide l,In o theiwworrlsthe fact of `cutting?` .llliellflng @lQsetO the bobble avoids @Hnos-- i .liblegleeus fer further., trniible. with the. .f-llf finvention, however, l

nated b v pulling this section oi tilhng'outol trailing"y piece ot .wett

The problem that remains 4after this op- Y .-shuttleto theselvage of `the goods. 'lt' is .obvious thatunless this section of filling` is removed from the path of movement of (the shuttle, theiexis every probability that the nextpickl oi the shuttle will whip a portion. at least, oitliis waste end into the shed and result in forming a highly objectionable flaw in the goods. According .tiitbe present this danger "eliiniV theshuttle box land throwing` itflateraily. away from Athe pat-h. 4of mov'eizient of the shuttle (before thembeat up oi the/nextpick and then severing* this piece, ot filling substantially at the .selvage Aolithe goods. e

`Referring particularly to it will be seen that the forward, end of the is provided with a notch lfso positioned thatlit straddles the fillingwhen the ieeler is moved into itsforwardjoi' operative position. 4This `notch is viiifade so .wide and1 flaring' that there isnopoe'sibility `et its missingy the lilling. Afingerll ispivoted on the feeler 12v at 31 'anwdfislA provided-.with a ,hook-shaped end havinga notoh32,see Figi'.

el, that can register with the end or apei: oi'` 1 2 and 3.

thenotch 13, Thisvlingercan vswing either i into the positionin .l-whiclrit is' shown in' Fig. 2, where it liesl nearly parallel with 'the forward end of the feeleL-oranto a position substantially at right angleslto said feelfeix.'

ico

asshown in Fig'. 3. itt certaintimes, however` 'it is held in "the formen position by means oit a spring thatl iscoiled about the pivot stud tandbas one 'end secured in the headof this stud and its opposite end ina portiono'tthe linger. The stud clamped" securelyto the arm 12. A stop 34, consisting o'a head .eccentrically mounted.- oij' fflustment ou a. screw. limits kthe .movemen t A ol3 `the linger 3U niidci'fthe i influence `of 'theA wai'dlimit oi its stroke, the lingerQis held 'Ain itsbackwardpositioirby theengagement y ,of a stud whicliproliects trom ,a tail piece with .which the i finger" is pi'oiided, with the.

- front face oiL'a plate `36 secured to a stat-ion- Kary o arm 36 which is adjustahly` clamped `to j f6 is turned in' l a v moved `forward trouitbe Y position. in 'which it isshown fin ligjQB to4 that in which it :appears vin the finger is swung" downwardly by the spring' '33, into a I posi tion in ,which ,its V notclr32 lies beside the. apex ofthe notch 13 in the "feeler 12. Duringthis 11mm/smentite studtsiiiess! @wir ilffelth ,e

arm 36 so that the finger is entirely within the control of the spring except as its movement under the influence of this spring is limited by the stop 34. The lay is moved toward the breast beam immediately after the feeler is swung forward toward the lay and the shuttle at this time is in the right hand shuttle box in readiness for the bobbin-changing operation. The trailing weft thread, therefore, is held under some tension as it enters the notch in the forward end of the feeler 12, and this tension and the relative movements of the parts ensure the positioning of the weft in the notch 32 of the linger substantially as it is indicated at `W in Fig. 4. The walls of the notch 13 are also laterally beveled to facilitate the proper positioning of the weft. At about the time that this engagement of the weft with the linger is elfected, or shortly thereafter, the bobbin-changing operation takes place, which results, as above described, in cutting the weft at a point inside the shuttle. Consequently, when the rock shaft 6 turns backwardly in a counter-clockwise direction, thus causing the finger 30 to exert a pull on the thread, the entire section of weft between the shuttle and the linger is free to pull through the shuttle box and out of the path of movement of the shuttle. The connections between the feeler 12 and the linger 30 and the engagement of the stud 34k with the arm 36 operate to accelerate the movement of the finger 30 and snap it quickly back into its rearward position, as shown in 3. This motion whips the free end of the waste piece of weft out of the shuttle box and throws it over the breast beam. The opposite end of this piece of weft is still connected to the cloth but this action carries the entire length of this waste piece of material laterally out of the path of movement of the shuttle before the shuttle has an opportunity to pick it up and carry it into the shed.

During the beating up of the next two or three picks the cutter 40 mounted in the temple and commonly designated as the temple cutter or selvage cutter is operated to sever this section of weft adjacent to the selvage of the cloth. This end of the waste piece of weft merely drops down in front of the lay entirely outside of the path of the weaving instrumentalities where it can do no harm whatever. These weft sections continue to rest on the beam until the attendant removes them and a very substantial accumulation of this material can collect without causing any annoyance or trouble. 'Iwo wires, or similar members, indicated, respectively, at 38 and 39 (Fig. l), may be positioned in the temple, one above and one below the plane of the cloth, to

limit the range of movement of the end of the weft adjacent to the selvage when this thread is thrown rearwardly by the linger 30.

This mechanism has proved very reliable in practice and because of its simple construction and the fact that it is controlled and operated by the automatic weft-replenishing mechanism, will give satisfactory service for a long period without requiring repair or attention.

llVhat is claimed as new, is

1. In an automatic weft replenishing loom, the combination of weft cutting means located adjacent to the selvage of the cloth, means for cutting the weft at the shuttle, a shuttle feeler operated by the weft replenishing mechanism, and a weft end removing device mounted to engage the weft at a point between the selvage and the shuttle, and arranged to be moved by said feeler in a path different from that of said feeler to remove the weft end from the path of movementI of the shuttle.

2. In an automatic weft replenishing loom, the combination of weft cutting means located adjacent to the selvage of the cloth, means for cutting the weft at the shuttle, a shuttle feeler operated by the weft replenishing mechanism, and a weft end remo-ving device arranged to engage the weft at a point between the selvage and the shuttle and mounted onl said feeler to be moved thereby in a different path from that of the feeler.

3. In an automatic weft replenishing loom, the combination of weft cutting means located adjacent to the selvage of the cloth, means for cutting the weft at the shuttle, a shuttle feeler having its forward end shaped to engagethe weft, a weft engaging linger mounted on said feeler and having a part cooperating with the forward end of said feeler to catch the weft, and means cooperating with said feeler to give said linger a quick movement to cause it to throw the weft laterally away from the path of movement of the shuttle.

4. In an automatic weft replenishing loom, the combination of weft cutting means located adjacent to the selvage of the cloth, means for cutting the weft at the shuttle, a shuttle feeler having its forward end notched to engage the weft at a point between said cutting means, a weft engaging finger pivoted on said feeler, a spring acting on said finger to move it in one direction, and a part arranged to engage said feeler to move it in the opposite direction.

In testimony whereof I have signed my name to this specification.

HENRY H. GOV E.

Certificate of Coireeton.

It is hereby certied that Letters Patent No. 1,440,981, granted January 2, 1923, upon the application of Henij7 H. Gove, of Biddeford, Maine, for an improvement in Weft-Replenishing Looms, were erroneously issued to the inventor, said Gove, and Howard R. Vhitehead, as assignee of one-half interest', in said invention, Whereas said Letters Patent should have heen issued to C'zmlotte M. Gove, administratie@ of saz'el He'rwy/ H. Gow, deceased, md Howard R. Whitehead, of S6500, Maine, as assignee of ofne-zC/Zf interest in said invention, as shown by the records of assignments in this ohce; and that the said Letters Patent should be read with this correction therein that the same may conform to the record 0f the oase in the Patent Office.'

Signed and sealed this 13th day of February, A. D., 1923.

[SEAL] KARL FENNNG,

Acting Uommzsseoner of Patents.

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