US1826312A - Combined thread holder and cutter - Google Patents

Description

Get 6, 1931.. A. A. GORDON COMBINED THREAD HOLDER AND CUTTER Filed April 28, 1930 xf//// A Patented a. 6," 1931' KNownE-s LOOM wonxs, or wanes-swan, MASSACHUSETTS, lncpnronnrioiv or V m W T -L PATENT mee nLnERn'A. eoncnon,v orw'oncn'srnn, .ivinssaonnsnrrs, 'AssIGNoia so -ononirmon a c on ainnn tasse HOLDER aim ovarian jcess thread so that the holder may function properly to tension the weft ends.

In' multicolor weft replenishing mecha iiisms it is' customary to arrange the reserve bobbins in several vertical stacks. The weft T0 ends from the bobbins/are held by someform Itis a of thread holder whichfpreferably' is movable. to take up slack as itoccurs in the threads."- One-form of thread holder employs a spring between the coils .of which weft is held; These holders move down wardlyb'y gravity in guides and I'have' found that the latterare likely to. become clogged 'withythe' weft endsiand impedethe downwar'd motion of the thread holderl: It is "accordingly an important object of my present invention to 1 provide a thread cutter Twhich shall-be so placed as 'to'effect; removal ofany excess 'weft which .niay be drawn off by the weaver when new bobbins are inserted in'the g zi 7 f f, r

further obj'ect of invention to provide threaded gripping springs which are operable from points below the cutter, so that thethreadszwillb'e free-to move to any raised spring and still be in t-he bight' between the cuttingedge's. I

; 'Withthes'e and other obj ects in view which will appear as the description 'proceeds my invention resides in the combination and artrangement-of parts hereinafter described and -setlforth in 'the claims. 1 I i a (In. the accompanying :drawings, wherein a.convenientgembodiment' of my invention is set forth, 4 V Fig.1is afrontelevation of a portion of a magazine having my improved thread holder and cutterappliedthereto, Fig. 2is' a side elevation on an enlarged sealejztaken in theidireetion of arrow'2, Fig. 1, mF-ig. 3'is-a vertical section taken on line of Fig.2 with one of the weights shown inlow position, f e i Fig:4; is a top plan view on an enlarged scaletaken im the direction .of arrow 4, Fig. 1, Fig... 5 is a view; similar .to a portion? of Application filed A ril as,

1920. Serial no, 447,873. 7

3 :but cutter blades separated,

and e Fig.6 is a' detail: vertical section through one of the weighted membersshowing the manneriof holding the several parts together by means of the coil spring. f

Themagazine 1O is'arranged in known manner to support. a plurality of'vertical stacks of reserveibobbins which may beof different. colors or characteristics. 1 Weft ends i W. extend fromfthese'bobbins and are attached to the form of thread holder forming reduced neck 17 frietionally gripped by the upper coils of'a normally closed tension springlS. The lower end of said spring is frictionallyheld to a. second neck; 19 formed on the upper end ofqavweight '20: having therethrough a bore 21, to receivethe lower end of the rod16. .I W

The wires of whichthe springs are formed have horizontal, fingers .22 passing through slots 23 which .extend from the corresponding holes 13 through. the left hand vertical face of the frame12 asviewed in Figs. B and 4: The slots23 .donot extend to the bottom of the frame 12 butfstop as indicated at2'5 to define rests for the fingers 22 of the wires, thereby providing supports forthe weighted elements 14. o a i The upper end of the slots 23' have extending thereacr'oss .retainingjpla te '26 he1d to the frameby screw/s27. This plate may bepen. forated to receive the tie rods 11 and has secured to the lower edge thereof a stationaryacutter blade 28 held in position by screws 29. :Thisjbladehas an upwardly extending cutting edgel30 as shownin vFig: 5 to cooperatewith. a: movable cutter blade 81 pivotcd on one of the tie rods, as shown in Fig. 2. The pivoted cutter blade is held frictionally in position by a collar 32 prevented from having longitudinal movement along tie rod 11 by set screw 33. An extension 34 of the cutter blade 31 may be employed to engage a part of the fixed structure to limit angular movement of said blade.

When it is desired to add bobbins of any selected stack the pivoted cutter blade will be raised to the dot and dash line position in Fig. 2, which position it will retain due to the friction of collar 32. The proper rod 16 will then be raised to cause engagement between blade 26 and the moving finger 22, and continued upward movement of the rod will expand the coils of the corresponding spring. The operator may then pass the ends of the newly inserted bobbins under the cutter blade 31 and between the coils of the spring. The rod 16 is sufliciently long so that the finger 22 will engage the bottom of the plate 26 before upward movement of the rod is prevented by the bottom of the frame 12. The operator will then release the rod 16 and it, together with the movable parts associated therewith, will fall to tension the threads. Thereafter the operator will depress the blade 31 to cut off such excess thread as extends beyond the cutter and is not necessary to the correct functioning of the weights. In this way a very short amount of weft extends beyond the slack taking up weight and there will be practically no clogging of the holes 13 or slots 23. i

As the several springs and weights fall to take up slack, the weft ends will slide over a guide rib 40 proiecting above the top 41 of the frame 12 to facilitate their movement toward the weights.

From the foregoing it will be seen that I have provided means to remove excess length of weft ends projecting beyond the thread holder and slack taking up devices. A part at least of the cutting mechanism is carried by the thread holding unit so that the same length of weft remains irrespective of the osition of the frame 12 along the tie rods. Furthermore. the springs are expanded by applying a force below the pivoted blade 31, so that the weft ends may be placed under the said blade without interference with the holders. Also, the slots 23 are so placed as to receive the short weft ends remaining after the cutting operation. thereby preventing the ends from entering the holes 13. The slots 23 cooperate with the fingers 22 to guide the movable thread holders to prevent rotation thereof in the holes 13.

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a weft replenishing mechanism operating with a plurality of reserve weft bobbins from which extend Weft ends, a'thread holder for the weft ends, and a thread'cutter located beyond the holder with respect to the bobbins and positioned to sever excess length pjf weft ends extending from the reserve bob- 2. In a weft replenishing mechanism operating with a plurality of reserve weft bobbins from which extend weft ends, a thread holder for the weft ends, and a thread cutter positioned to sever excess length of weft ends of the reserve bobbins extending to the holder.

3. In a weft replenishing mechanism operating with a plurality of reserve weft bobbins from which extend weft ends, a fixed support, a thread holder on the support, and a thread cutter mounted on the support and positioned to sever excess length of weft ends extending from the reserve bobbins beyond the thread holder.

4. In a weft replenishing mechanism oper- I length of weft ends extending from the reserve bobbins beyond the holder with reference to the bobbins.

5. In a loom, a magazine to support reserve bobbins from which extend weft ends, a

thread cutter positioned to'sever excess length of weft ends extending from the reserve bobbins, and a thread holder located between the ouster and magazine and attached to the weft en s.

6. In a weft replenishing loom having reserve supplies of weft from which extend weft ends. a movable thread holder, a frame in which the holder moves, and a thread cutter adjacent the holder positioned to sever excess length of weft ends extending from the reserve bobbins to prevent the ends from entering the frame and interfering with the movement of the holder.

7. In a weft replenishing loom having reserve supplies of weft from which extend weft ends. a support having a guideway therein. athread holder movable in the guidewav and connected to the weft ends, and a cutter to sever excess length of weft ends to prevent the latter from entering the guideway.

8. In a weft replenishing loom having reserve supplies of weft from which extend weft ends. a fixed frame having a guideway therein, a thread holder movable in the guideway to take up slack in the weft ends, and a cutter adjacent the guidewav to sever excess length of weft ends extending beyond the thread holder from the bobbins.

9. In a weft replenishing mechanism operating with a plurality of weft bobbins arranged in a plurality of stacks and from which weft ends extend, a plurality of movable thread holders to take up slack in the weft' ends, a thread cutter to sever excess length of weft ends, and manual means for operating any of the thread holders from a point beneath the thread cutter.

10. In a weft replenishing loom having reserve supplies of weft from which extend weft ends, a fixed frame to be held at different distances from the bobbins, a thread holder carried by the frame and attached to the weft ends, and a cutting member carried by the frame and movable therewith to assistin severing excess weft ends.

11. In a loom, a magazine to support reserve bobbins from which extend weft ends, a thread cutter to sever excess length of weft ends, a thread holder located between the cutter and magazine and attached to the weft ends, and friction means to hold the cutter open to receive weft ends.

12. In a weft replenishing loom having reserve supplies of weft from which extend weft ends, a fixed frame having a guideway therein, a thread holder movable in the guideway and attached to the weft ends, a

, guide finger on the holder, the frame having a slot for the finger, and a cutter to sever excess length of weft ends, the holder being between the cutter and bobbins and the slot extending toward the cutter and positioned to receive the short weft end between the cutter and holder.

In testimony whereof I have hereunto affixed my signature.

ALBERT A. GORDON.

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