US961439A - Thread-cutting temple for weft-replenishing looms. - Google Patents

Description

THREAD CUTTING TEMPLE FOR 'WE-PT REPLBNISHING LOOW APPLICATION FILED DEO. 20" 1908. @llffa UNITED STATES PATENT oEEicE.

Linear A.

THREAD-CUTTING TEMPLE FOR WEFT-BEPLENISHINGLOOMS.

Specification otSLetters Patent.

Patented J une 14, 1910.

Appiication nidlrecember esgtieos. serial No. 469,208.

To all whom it v:may concern:

Be it known that I, ALBERT A. GORDON, \Jr., a citizen of the United States, residing `at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Thread-Cutting Temples for VVett-Repvlenishing Looms, of which the following is a specification.

My invention relates to a thread cuttino` temple for weft replenishing looms, an particularly to the type of thread cutting temple shown in U. S. Letters Patent, No. 5555,465, in which the filling or weft thread cutting mechanism is lcombined with the loom temple. In said patented cutting teinple, the cutting mechanism comprises a statioiiary cutter or blade, and a movable cutter or blade; the movable cutter has a heel or extension thereon, which, 'on the. forward movement of the lay, is engaged by a projection on the lay, and through said engagement said cutter is moved to cut the filling which extends out beyond the selvage of the goods, in case said filling has been caught by the hook on said movable blade, all as fully described in said patent.

It has been found in thepractical use of the patented thread cutting tem le` above re terred to, that the end of the filling extending out from the selvage or edge of the -fabric, after the transfer of a bobbin from the magazine into the active shuttle, and the picking of said shuttle through the shed from the magazine end of the loom, and also particularly where a shuttle having a substantially exhausted bobbin is picked from the end of the loom opposite from the magazine, and ysaid bobbin is then expelled from the shuttle by the insertion of anew bobbin, that the filling will not be cut by the cutting mechanism, because the forward movement of the lay has moved the movable cutter toward the breast beam, be- Ltoie the illing has been beaten up by the reed suliciently to be enga ed by said cutter, and consequently the ling end is lett outside of the'selvage, and is liable to be drawn into the shed by the shuttle, or by subsequent shots of illing.

To overcome this fault in, and objection to'thc patented thread cutting mechanism above referred to, it is necessary 'to add an independent cutting mechanism, between the temple cutting mechanism, and the 'direction of arrow 11, same figure.

magazine, to cut the fillin whichfis not cut by the temple cutting mec anism.

The object of my invention is to improve upon the type of thread cutting4 tem les shown and described `in said Patent, glo. 585,465,.and more particularly to do away with a second c utting mechanism, and to combine with the atented thread cutting mechanism, a supp emental mechanism, by means of which, on the ,transfer of a bobbin from the magazine into theyactive shuttle, and the expulsion ot' the substantially exhausted bobbin from said shuttle, the movement of the movable cutter will be delayed until the lay has advanced almost to its forward position, and until the filling is moved forward sufficiently by the reed, to be in a position to be engaged by said movable cutter, which is then moved, preferably independently or' the, movement of the lay, by a supplemental mechanism, the operation of which is controlled through connections to the transferring mechanism at the magaziney end of the loom.

My invention consists in certain novel features ot' construction of my improvements as will be hereinafter fully described.

I have only shown in the drawing a detached portion of a weft replenishing loom,

and piarts of a weft replenishing mechanism, Whic are shown andsdescribed in U. S.

Letters Patent No. 948,568, and also a GORDON, JR., OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 CROMPTON & A .KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

thread cutting temple .of the type shown anddescribed in Patent, No. 585,4435, above referred to, with my improvements combined therewith, suflicient to enable those skilled Iin the art to understand thc construction and opera-tion of my improvements.

Referring to the drawing: Figure l is a rear view of a detached portion of the breast beam of a loom, with a part of the weft rcplenishi'ng mechanism thereon, and a thread `cutting temple, and my improvements combined therewith, looking 1n the direction of arrow a, Fig. 2. f Fig. 2 is a section, on line 2, 2, Fig. l, looking in the Fig. 3 is a section, on line 3, 3, Fig. 2, looking in the direction of arrow c, lsame figure.V Fig. 4 shows, on an enlarged scale, the cutter blade, and parts. connected therewith, de tached, looking in `the direction of arrow a3, Fig. 5. Fig. 5 is an end view of the parts shown in Fig. 4, looking in the direction of arrow e, saine figure.

In the accompanying drawing, 1 is a detached portion of a-loom side or end frame, 2' the breast beam3, Fig. l, is the lower portion of the stand on which is supported the magazine, noty shown, for the bobbiiis or lilling carriers. The stand 3 carries astud, on which is pivotally mounted the hub 4 of an arm 4 of the transferring mechanism. A boss 4 on the arm 4 carries a stud 5', which is pivotally connected to the upper end of a vertically moving plate 5. A lielically coiled tension spring 4, acts to move the arm 4 of the transferring mechanism, in the usual way.

The lower enlarged part 5 of the plate 5 has loosely extending therein the upper end of the vertically moving rod 6, see Fig. 1.

7 is a longitudinal pin or rod,-suitably supported and guided in a side extension or arm 5 on the plate 5. The outer end of the longitudinal pin 7 is adapted to be engaged by a lever, connected with the filling detecting mechanism, and moved -in'wardly against the action of a helically coiled expansion spring S mounted on the pin 7, to bring the inner end of the rod 7' in the path of the upper end of the vertically moving rod G. The pin 7 has a collar 9 fast thereon, which carries a wire 10 having an eye 10 on its inner end, through which loosely eX- tends a vertically moving rod 11. Through the longitudinal movement of the pin 7 the rod l1 is moved out or in at its upper end.

All of the above mentioned parts are of the same construction and operation as the similar parts shown and described in the Letters Patent, No. 948,568, above referred to.

The upward movement of the rod (3, when the inner end of the pin 7 extends in the path of the upper end of said rod, will move upwardly the plate' 5, against the action of the helically coiled contraction spring 12, to

operate the arm 4 of the transferring mech-I anism, and through intermediate connections, not shown, raise the dagger,iiot shown, to cause the transfer of a new bobbin, in the 'usual way.

I. will now describe the thread cutting loom temple shown in the drawing, and which in this instance corresponds to the loom temple shown and described in latcnt No. 585,465, above referred to. The loom temple comprises the stand 13, see Fig. 2, which is secured to the-plate 2 on the breast beam 2. The stand 13 is adapted to hold the slide bar 14 of the temple. 'llie slide bar 14 y has a head 14 on which is secured the cap 15. The temple roller or burr 16 rotatably mounted within the cap 15. The head 14 isrecessed to receive a stationary blade 17. l The movable cutter or blade 18 is at its front end made of substantially the same Shape as the movable blade in said patent. No. 585,465, the front end being slotted and of hook shape. The slotted end of the blade 18 straddles the stationary plate 17. In its normal or inoperative position, the inner or front end of the cutter 18 is, by the action of the spring 19, kept projecting through the slot in the head 14, and elevated.

The spring 19 is. connected at one'end with a stud 14 on the bar 14', and at its other end with a stud 18 on a downwardly extending projection 18 on the cutter 18, and as above stated, acts to yieldingly hold the and return it to said position.

All of the above mentioned parts of the thread cutting temple are of the usual and well known construction, shown and described in said Patent, No. 585,465.

l will new describe my improvements combined with the parts of the thread cutting temple above described. On the breast beam 2 at the magazine end, is in this iiistance secured a downwardly extending stand or bracket 2O carrying a stud 20', on which is loosely mounted the hub Q1 on the lower end of an upright lever 21, see Fig. 1. A side projection 21 on the lever 21 extends in and is adapted to engage the lower end of the enlarged part 5 on the vertically moving plate 5. A helically coiledcontractioir spring 22 is att-ached at one end to the side extension Q1 on the lever 21, and at its other end 4in this instance to a pin 23 on the rear of the breast beam 1. Said spring. QQ acts to yieldingly hold the side extension part 5 of the plate5.

lVhen the pla-te 5 is raised, during the op- ,eration of transferring a fresh bobbin or filling carrier from the magazine into the running shuttle, and the expulsion of the substantially exhausted bobbin from the running shuttle, the upper end of the lever 2l is moved to the right in Fig. 1, through the vaction.of the spring 22. On the upper end of the lever 2l is a stud 24, to which is ivotally connected one end of a rod 25.

2G on a bracket 9.6 secured to the rear side of the breast beam 1, and the inner end of said rod 25 is adapted to engage a side cxt'ension 27 on a downwardly extending arm or lever Q7, which has its hub Q7 pivotally mounted on a bolt or .screw Q8, see Fig.' 4. The bolt or screw Q8 isv fast in an extension or heel 18 on the cutter blade 18. Extending upwardly from the hub 27 of thc lever Q7, is an arm 27', in this instance having blade 18, seel Figs. 4 and 5, and acts to limit the pivotal movement of the lever Q7 in one direction, as shown by full lines in Fig. 3.

A helicall coiled contraction spring 29 is attached at its lower end to a pin 30 on the hub 27 of the lever 27, and at its other end to a pin 31 on the slide bar 14, see Fig. 2;

cutter 18 in its elevated'inoperative position,

he. rod Q5 is loosely supported in a boss o1` -hub a beveled upper edge Whichvextends into a; beveled recess in the end 18 of the cutter Q1 against the lower end of the enlarged loosely mounted the hub 34 of a two-armed will be readily understood by those skilled in Athe art.

patent, and this movement takes place on tion 3G thereon will pass by the lever 27,

"with the drawing, the operation of my iinvior heel of the movab e cutter 18, will extend said spring 29 acts to yieldingly hold `the lever 27 in the position shown by full lines in Fig. 3, and to return it to said position.

A stand 32 is secured at its upper end on the inner side of the breast beam, see Figs. 1 and 2, and carries at its lowerend a boss 32', in which is held a stud 33, on which is lever V34. The lower arm oi the lever 34 is connected with the u per end of a rod or connector 35, which rot is operated throng", mechanism, not shown, preferably a cam' lever, and a cani on the bottoni shaft of the loom, to operate said connector 35 and the lever'34 every other pick of the loom. The upper arm 34 of the lever 34 has a sideextension 34 thereon, which is adapted to extend in front of the lever 27, see Fig.

i From the above description in connection provements, combined with the loom temple cutting mechanism shown in the drawing,

. In the normal operation of the loom, the arm or lever 27, sup orted on the rear end in the path of a projection on the lay, said projection is indicated by broken lines 36 in fig. 4, and as the lay beats up, said rojcction' 36 will engage the arm 27 an move backwardly the cutter 18, to cause it to engage and cut a filling 01'v weft thread, in case there is :any filling or weft thread under the hooked end of said blade, in the same manner as described in said Patent, No. 585,465. As stated above, this is the only backward movement of ihecutter 18, in said every forward movement of the lay. without l regardto the transfer ot' a new bobbiii from the magazine, and the expulsion of the substantially exhausted bobbin from theactivc shuttle.

In the operation et' my improved construction ot cutting mechanism, when the bobbin is to be transferred from the niagazine into the, active shuttle, and the substantially exhausted bobbni in said shuttle'is to be expelled from the shuttle, the operation of the transterrer arm 4, tlirou h the upward movement of the rod 6 and the plate 5, Iwill release the lever 2l, and allow the spring 22 to act to move the rod 25 tothe' right, Fig. 1, to cause it to engage the side extension 27 on the lever 27, and move said lever 27 to one side, as indicated bv broken lines in Fig. 3, and out of the path of the projection 36 on the lay, so that as the lay advances on its forward movement, the projecleaving the movable cutter 18 stationary, and said cutter `vfill remain stationary, and allow the filling extending out beyond the relvage to be beaten up by the reed and pass b v broken lines in Fig. 3, and move said lever and with it the cutter 18 backward,

causing the cutter 1S, in connection with the stationary cutter 17, to cut or sever the filling. Flne return movement of the transtcror aim 4 to its normal position, and the atlcnward movement of the plate 5 and rod l(i, will cause, through the engagement of the' enlarged part 5 on the plate 5 with the side extension 21 on the lever 21, the movement of said lever 21 to the left, Fig. 1, against the action of the spring 22, and also the movement of the rod to the left, Fig. 1, to release` the lever 27, and allow the spring 29 to act, to return said lever to its normal position, and out of tne path of the side extension 34 on the lever 34, as shown by full lines in Fig. 3.n The cutting mechanism will then continue to operate, that is the movable cutter 18 will be moved back at every forward movement of the lay, by the engagement of the projection 3G, (see Fig. 4,) with the lever 27, until, on the trans-" fer of another bobbin from the magazine into the active shuttle, my mechanism above described is again put into operation.'

The advantages oi my improvements will be readily appreciated by. those skilled in the art. I

lt will bA Aiinderritood that in the normal operation of the loom, the movable cutter' of the cutting mechanism has a movementl comi-iunicated thereto by the forward movement. of the lay, in the saine manner as dcscribed in said Patent, No.` 585,465, but that on the transfer of a new bobbin from thc magasine into theactivev shuttle, and the expulsion of the Substantially exhausted bobbin from sa'd shuttle, thc movement of the cutter 13 delayed until the reed has moved forward the filling or wei't thread `suiiiciently to be engaged by the hooked end of the .cutter 1o, and the-n the said cutter 18 is moved independently ot' the lay, to sever or cut the tilling or wett thread. ln this way I accomplish with one cutting mechanism, and my supplemental mechanism for operating the cutting mechanism, which supplemental mechanism is preferably operated indepe idently ot' the lay, whenever there is a bobbin oir-filling carrier transferred from the magazine, what has ordinarily required two cutting mechanisms.

ltwill be understood that thc details of construction of my improvements may be varied it desired. ll'ly supplemental mechanism is preferably operated independently of the lay, but it may be operated through connections to the la Having thus described my invention, what and the movable cutter, to cut or sever the or weft thread.

n a thread cutting loom temple, a stationary cutter, and a' movable cutter, a lever or arm on said movable cutter extend! fill' ing in the path of and ada ted to be engaged lby arprojection on the ay, to cause the movement of said cutter, and adapted to be 2o moved out of the path of said projection and into the path of an operatm lever, and said lever, acting to move said ever or Iarm and the movable cutter, independently of the lay, to cut or sever the filling or weft thread.

3. In a thread cutting loom temple, a stationary cutter, a movable cutter, and

means for movlng said cutter at regular interva-ls, and means for delaying the operation of the cutter preparatory to the transfer of a bobbin, and means, independent of the lay, for operating the cutter on the transfer of a bobbin. Y.

ALBERT A. GORDON, JR. Witnesses:

JOHN C. DEWEY, MINNA HAAS.-

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