US837765A - Loom-shuttle. - Google Patents

Description

No. 837,765. PATENTED DEC. 4, 1906.

E; S. WOOD.

LOOM SHUTTLE. APPLIOATION FILED 118.26. 1906.

form of which is disclosed in United States 5 ing is automatically threaded, and thereby UNITED STATES PATENT QFFICE. i EVERETT s. Woon, or noranaui, MASSACl-lUSE'ITS, ASSIGNOH To DRAPER COMPANY, or nornniinn, MAssAcnnsn'rrs, A coaro- RATION OF MAiNE.

LQQMSHUTTLE.

Specification of Letters Patent. Application filed February 26, 1906, Serial No 302,907.

no. 887,765. Patented Dec. 4, 1906.

. the free movement of the old filling end as it is drawn backward out of the delivery-eye. This retardation affords an opportunity for the old filling end to catch or foul the new T 0 all -wh0m, it ntrty con/corn:

Be it known thatI, EVERETT S. Wool), a citizen of the United States, residing in Hope- 'deie, county of Worcester, and State of Massachusetts, have invented an Improvement in l filling end or may prevent the escape of the Loom-Shuttles, of which the following del former from the shuttle before it is again soription, in connection with the accompany picked. ingdrawings, is aspecification, like characters If the ejected filhng-carrier drops with its of thedrawings representing like parts. i tip up, it will be obvious that the filling will Iniooms of the type wherein the running pull off over the tip very easily, and the tenshuttle is provided with a fresh supply of i sion device acting upon such filling holds it fiilingwhiletheloomcontinuesinopcrationback, so that it will not pull back through as, for instance, in the Northrop loom, one the eye. When this hap ions, the shuttle is apt to be picked after iling replenishment with this length of old filling dragging after it onto the cloth, thus making a bad place.

Under the most favorable circumstances the old filling end is ruitc long, for it leads from the inner end of t 1e shuttle outwardto the delivery-eye, thcn inward to the old filling-currier, it being understood by those 5 skilled in the art that the old filling end is cut l close to the inner end of the shuttle by suitablc means. One form of such means is shown in United States Patent No. (577,096, l

l Patent No. 529,940the newly-inserted till-i l directed into the delivery-eye of the shuttle, while the more or less exhausted filling carrier or bobbin is ejected from the shut (lo, and when ejected the cud of the filling leading therefrom should be promptly withdrawn from the dclivcrv-cyc. This old filling end should be withdrawn as quickly and co npletely as possiblc in ordorfto obvialc any chance ofits fouling thc new filling-thread or of being carried back into the cloth when the shuttle is pi ked after filling roplcnishmmit. This is particularly essential in so-callcd feeler-looms whcroin the/filling change or replenishment is effected prior to com )lctc exhaustion of the running filling, for thc old -filling end is carried back it makes an imperfection in the cloth, and as the feclcr type of loom is employed to make perfect cloth it will be manifest that'the desired ob- .,ject is not attained if by the use of the fcelcr Such faults are not obviated.

Shuttles are provided with a friction device to exert sullicicnt drag upon the thread of filling as it is drawn off from the fillingcarricr, whereby fhc requisite lcnsion is sccured, and a common form of friction or tension dcvicc is a picco or pad of felt or similar material so locatcd in the shuttle that the filling is engaged by it between the tip of the lilling-carricr and the dclivcrywye of the shuttle as the filling draws off to be delivered. I Usually this tension device is located at or l near the inner end of the threading device in an antomat ically self-threading loom-shuttle, so that when the spent filling-carrier is ejected he tension device acts u on and has a very lecided tendency to hol back or retard granted to Northrop June 25, 190], to which reference may be had, and from the foregoing it will be soon that the rapid clearing of the old filling end from the shuttle is of great .iml portancc in a feclcr-loom, and it is also desirablc to effect such clearance in a nonfcelcr loom, while not so necessary.

My presentinvention has for its object the production of exceedingly simple, but vcr retarding act ion upon the old filling end when filling change or rcplonishmmit is effected, so that the filling cnd may free itself quickly and leave the shuttle and the delivery-eye thereof clear for the new filling.

The various novel features of my invention will be fully described in the subjoined specification, and particularly pointed out in the follmving claims.

Figure l is a top plan view of the delivery end of an automatically self-threading loomshnttlc with one form of my present invention c'mbodicd therein, the shuttle being shown as threaded. Fig.2 is a partial longitudinal l section on the line 2 .2, Fig. l ing-carrier as just ejected from the shuttle by the incoming filling-carrier to illustrate how by means ofmy invention the old filling end 1, show ng aiill-' cflicicnl means to do away with this drag or.

venience and not in any way the block tension device and will not interfere with the fresh lining-thread; and *ig. 25 is a transverse section on the line 3 3, Fig. '2, looking toward the right. I The shuttle-body A, open at top and bottom to receive the filling-carrier B, Fig. 1, (the shuttle in practice having suitable jaws, (not shown,) to grasp and hold the head of the iillingcarrier,) the side delivery-eye (1 and the automatic threading device or block 'l may be and are all substantially of well-known construction and familiar to those skilled in the art.

Herein the threading device is substan tially that shown in United States Patent to Northrop, No. 769,914, dated September 125, 1904, such device being illustrated for conrestricting my invention thereto.

The block 1 has a tubular thrzaid-passage l 4, Fig. an inlet 5 in its top, a guard h, thread-entrance 9, a beak l4, and an overhanging shield 15, and at the inner end ol the block 1 is a transverse seat ii to receive a piece of felt 2'2, which serves as the tension device hereinbetore referred to. ()rdinaril' this piece of felt extends across the inner end of the thread-passage 4, and as the iillingthread whirls around in a spiral as it draws olf the tip of the filling-carrier it drags over the upper edge of the felt and is retarded thereby. When the ejected lilling-:arrier pulis back the old iilling end, it must necessarily draw over the upper edge of the ten-- sion device, and the Friction of the latter either prevents it from drawing out rapidly from the delivery-eye and the thread-passage or the drag may cause the '[illing end to break between the shuttle and 1illing carrier, liiaving a loose piece of thread in the shuttle. ln accordance with. my present invention I vertically slit or'separate the lelt centrally, as at 30, Figs. l and 3 dividing the same into two parts, and prelerably the upper ends of the slit are widened or llared, asat 31, Fig. 23. he part of the threadirig-block which l'orms thc'seat It is also slotted at 3'. to form a continuation oi the slit 3t), and the shuttle-bmly A is cut away or notched at 233 below the slot. ialsopreier to round oil the portion of l at 34, Fig. 2, where the front end of slot intersects the th ad-passagc' 4. [n Fig. i the filling-thread t is shown as led across the tension device 2'3, through the thrtatd-passagc 4, and out through. the dclivery-eyc a W'hen the filling-carrier is ejected by being pushed out and downward from the shuttle, as at B Fig. 3, the lilling end t is instantly ulled down through the slit 3t) and passes into theslotih ol" the threading-blocl entirely clear of the tension device, the filling end then leading directly from the rounded )art CH of the block to the lilling-carrier, which l ing a slit through it and a clearance-s and anopening falls into a suitable receptacle. As it fails it pulls the end P out clearly and quickly, freeing it from the delivery-eye and the threading device, it being impossible for the tension device to exert any control whatever over it. 7c Consequently there. is no chance of the new :lilling-thread t fouling with the old filling. end, as the thread i leads oil' from the freshlyinserted filling-carrier B, Fig. '2, above the v tension device, 'nor can any portion of theold filling end remain in the shuttle to be carried back into the cloth. 'lhe recess or notch 33 in the shuttle-body provides a complete clearance, removing al obstruction to the withdrawal of the filing bu end which might be oti'ered by the shuttlebody. and the rounding of the block 1 at 34 obviates any sharp corner at that point, and thrreby reduces friction to a minimum. The llared mouth of the slit 30 assists in direciing the filling end into the slit when the filling-carrier is ejected and also provides ample surface for the filling-thread to engage when the shuttle is running normally and the thread is whipping .around as it draws off to be dclivrrcd.

ln actual practice there is no tendency whatever ol the thread to catch in the slit when the thread is being drawn oil' the hilingcarrier during the weaving operation, the 5 tension device at such time acting in usua manner upon the thread. The direct downward pull, however, exerted by the descentof the ejected filling-carrier draws the i1 ing end down into and through the slit 30 too and then through the clearances 32 and 33.

My invention is not restricted to the particular iorln of threading device herein shown nor to the precise construction and arrangement of the tension device and clearr05 ances, for the same may be modified in dii'l'erent particulars without departing from the spirit and scope oi my invention.

llaving fully described my invention, what I claim as new, and desire to secure by iet 11o lers Patent, is

IV A shuttle-body having and an opening for the reception and passage therethrough of a filling-carrier, means to di reet the filling-thread to the delivery-eye, U5 and a tension-pad to normally act upon sait thread as it passes to the eye, said pad avace being lormed below theslit in the threat -directing means and the shuttle-body, the e ection of a filling-carrier drawing its filling end through the slit into the clearance-space and tree from the control of the tensionpad.

2-. 'A shuttle-body having a deliveryreye for the reception and passage 5 therethrough of a iillingrarrier, a thread-direeling device having alongitudinal thread' passage, and means to guide the fillingthread therefrom to the delivery-eye, a verti rally-slotted transverse seat at the inner end 3 a delivery-eye 4 shuttle having a deliver through the slit, and the of the thread-passage, the shuttle-body being recessed below the slot, and two pieces of felt held in the seat with their adjacent upright edges presenting a narrow slit communicating with the slot in the seat, whereby the downward pull on the filling end by an ejected filling carrier draws such filling end seat into the recess in the shuttle-body clear of the felt, the latter acting normally to exert requisite tension on the filling-thread as it passes through the thread-passage.

3. An automatically self-threading loomshuttle having a deliver -eye and an opening to receive a filling-carrier, a longitudinal thread-passage through which the fillingthread travels-to the eye, a tension device at the inner end of said passage to normally act upon the filling-thread, and means to free the latter from control of the tension device by or through ejection of the filling-carrier from the shuttle.

4. An automatically self-threading loom- -eye and an opening to receive a filling-carrier, a longitudinal thread-passage through which the fillingthread travels to the eye, a transverse, slotted seat at the inner end of the said passage, and. pieces of felt held in the seat, at opposite siYles of the slot, to normally exert tension upon the filling-thread, ejection ofa fillingearrier from the shuttle drawing its filling end down between the inner edges of the felt pieces and through the slot of the seat, whereby the filling end will draw back freely from the delivery-eye and through the threadpassage.

5. An automatically self-threading loomshuttle having a side delivery-eye and an opening to receive at its top a removable filling-earrier, and ermit its ejection from the bottom of the siuttle, a tension device to normally act upon the filling-thread as it is drawn from the filling-carrier, and means whereby the ejection of the filling-carrier from the shuttle instantly releases the filling end from engagement with the tension device and permits its ready withdrawal from the delivery-eye.

6. In a loom-shuttle adapted to contain a supply of filling and provided with a deliveryeye and a device to automatically direct the fillin -thread thereto a tension device to nor-' mally act upon the filling-thread delivered from the shuttle, and means to permit the old. filling end toLbe drawn downward through and below the tension device and free of control thereby when a change of filling is effected.

7. In an automatically self threading loom-shuttle adapted to receive from above an incoming filling-carrier and to permit ejection of a filling-carrier through the bottom of the shuttle, a tension device to normally act u on the filling-thread as it is drawn off the fiiiing-carrier, and means to direct the old filling end below and out of contact with the tension device when the filling-carrier is ejected from the shuttle.

8. In an automatically self threading loom-shuttle, a tension device to normally act upon the filling-thread, and means to free the latter from the control of the tension device when the filling-carrier is ejected from the shuttle.

9. In an automatically self threading loom-shuttle, adapted to receive from above an incomingfilling-carrier and to permit ejection of the spent filling-carrierthrough the bottom of the shuttle, a tension device loeatod below the path of the thread as it draws ofi' from the freshly-inserted filling-carrier, and means to direct the old filling end below and out of control of the tension device when the spent filling-carrier is ejected from the shutt e.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

I EVERETT S. WOOD. Witnesses:

GEORGE OTIS DRAIER, ERNEST-WARREN W001).

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