US1897077A

US1897077A - Tuft yarn carrier for looms

Info

Publication number: US1897077A
Application number: US585472A
Authority: US
Inventors: Edwin C Shuttleworth
Original assignee: Mohawk Carpet Mills Inc
Current assignee: Mohawk Carpet Mills Inc
Priority date: 1932-01-08
Filing date: 1932-01-08
Publication date: 1933-02-14
Anticipated expiration: 1950-02-14

Description

3759- 1933. ac. SHUTTLEWORTH TUFT YARN CARRIER FOR LOOMS 1932 2 Sheets-Sheet 1 Filed Jan. 8,

ATTORNEYS 1933- E. c. SHUTTLEWORTH 1,897,077

TUFT YARN CARRIER FOR LOOMS 2 Sheets-Sheet 2 Filed Jan.

, ATTORN EY5 Patented Feb. 14, 1933 UNITED STATES PATENT OFFICE EDWIN C. SHUTTLEWORTH, OF AMSTERDAM, YORK, ASSIGNOR TO MOHAWK CARPET MILLS, INQ, OF ALIS'IERDALI, NEW YORK, A CORPORATION OF NEW YORK TUET YARN CARRIER FOR LOOMS Application filed January 8, 1932. Serial No. 585,472.

This invention relates to looms of the type ordinarily used for weaving Axmmster carpets and similar fabrics and is concerned more particularly with a new device for carrying the yarns to be used in making the pile tufts.

In looms of this type, as heretofore commonly constructed, the pile yarns are carried on a large number of spools, each of which is mounted in a frame slung between chains which pass over sprocket wheels supported in the frame of the loom. Each spool carries a plurality of yarns arranged tosupply one row of tufts across the fabric and the the chains are moved tobring the spools one after another into a position above the weaving mechanism where yarn is drawn from the spools and incorporated in the fabric. When wide fabrics are being woven, each spool may be replaced by several axially aligned spools all carried in the same frame. The frames which carry the spools are usually provided with brackets for supporting the spools, and have holes or tubes through which the yarns are presented to the weaving point and brakes or tension devices to prevent the spools from rotating too freely and unwinding excess y Difficulty is encountered with the construction described on account of the fact that a large number of yarns are carried on each spool and, if the brake on a spool gets out of order, the yarn overruns and a tangle involving a large number of yarns results. Also, lack of proper tension on the yarn causes the fabric to be imperfect and unsatisfactory. Another objectionable feature of the former construction is that in order to remove or replace a single pile yarn, it is necessary to remove a whole spool and all of the group of yarns carried by it, and replace it with a properly wound spool, and this involves threading all the yarns of the new spool through the holes or tubes of the carrier. Since the yarns on a single spool are usually of several different colors in accordance with a pattern, a chan e in the pattern requires that all the spools be removed and completely rewound.

The present invention is accordingly directed to the provision of an improved pile yarn carrier for a loom, in which there are no spools, supporting brackets, or spool tensioning devices and in which the pile yarns are carried in separate packages so that a single supply of yarn may be replenished or taken from the machine and replaced by another without disturbing the other yarn supplies in the carrier. The new construction also eliminates the necessity of winding spools to conform tothe design to be woven, and the yarn packages used in the new carrier hold more yarn than the spools and hence the loom may run longer without replenishing the yarn supply.

In one embodiment of the principles ofthe invention, the carrier mechanism includes a plurality of frames which carry magazines, each of which holds a plurality of yarn packages or cops which can be removed or replaced without lnterfering with any other of the pile yarns. The carrier is suspended between chains as before. In withdrawing the yarn from the cops, the cops are not rotated and hence overrunning is not encountered.

For an illustration ofthe manner in which I prefer to build my improved carrier, reference may be had to the accompanying drawings, in which: I

Figure 1 is a diagrammatic side elevation of a loom frame without the weaving mechanism but showing the chains between which the pile yarn carriers are suspended.

Figure 2 is an enlarged View of a part of Fig. 1 showing the weaving mechanism and a few of the pile yarn carriers in place on the chains.

Figure 3 is a front elevation of the pile yarn carrier according to this invention.

Figure l is a sectional view taken on the line t4 of Figure 3. a

Figure 5 is a front elevation of the carrier without the magazines therein.

Figure 6 is a sectional View of Figure 5 on line 66.

Figure '7 is a top view of the carrier.

Figure 8 is a side elevation of a single yarn magazine.

Figure 9 is a top view of the same maga- Zinc.

Q Figureli) is a view similar to Fig. 4' showing a modified construction.

The new tuft yarn carrier illustrated as mounted in the usual type of Axminster.

loom 20 in which the yarn carriers 22 are suspended between chains 23 which pass over a seriesof sprocket wheels? 24 on the frame cessively inte -position over the weaving mechanism ofjthe, fabric. [The carrier-{in this position is then'detached frorn the chain and lowered by the arm f25 so that its feed tubes pass through the-warp, and yarn from each tube rormmpile tuft in the fabric; The carrier is then returned'and again sus-' I pended between thechains; the chains-move tobring the jnext' yarnicarrier above the weavlngvmechanism, an d-the operatlon is re peated;

carriers totheir carrier chains, but are pref--. erably spring catches which maybe readily engaged and disengaged from thexchainsi23- by' the ar m* .r A supportingmember29inthe form of a heavy piece of sheet metal is securedto the bar: 27 bypwelding or other means and extends upwardly-{therefrom"to form one side of a box 30 inlwhichcop magazines31 aretcarriedrf if I v ii-Thebox-30 has a bottom 3Oa formed' witha plurality of laterally extending :slots 32,. a

plate 33.,which partially covers the top,'and plates 3l-;.which partially cover the ends; Theib'ox 3Ov is open opposite the side 29, and

the-magazines 31*areinserted into the box through the-,op-ening-sothat; they" extend across the box, each magazine'lying above one of the slots 32.- A bar. 35 extends longitudinally along the open side of the box and is ,held at its ends'byibolts 36 which extend through lugs 37 projecting beyond-the ends of theplate 29 and'arefastened in the lug by nuts 38. Guides39,at the jendsof thebox 30, hold the magazines in proper transverse position within the box .30', the guides being;pressed by springs 40 between the guides {and theends ofthe box. 7 1 1 1. :'I.he,magazinesare preferably formedfof sheet metal, and, as shown; each one isof a;

' size to holdfour.-cops in parallel relation.

'Each magazine is in theiorm of aboxgwith one side'i'open and with four transverse slots 42 extending from the open side partway acrossthe;;bottom of thebox. When the magazine is in place in the carrier box 30,

the slots 42 in the magazine cross the slots 32in the carrier box insuch a way that four openings are formed through the bottomof hence less rplenis the magazine and carrier'box. The yarns from the cops 43 are drawn throughthe slots 4:2;before the magazineis placed into-thecarrier; box and thenslipped into the slots 32 when the magazine is placed inthe box. 2 30, "so that-they'passthrough the-bottomof the carrier box. Tubularguideseiiyarefas tenedrto, the carrierzbar 27in position to receive the ends of'theyarns and "guidethem, while they are being {incorporated in the fabric'inthe usual-manner;

Instead of "the tubes44, a,perforatedplate 45' mounted onft'he carrier-baru27 maybe employed, the varns ibeing threaded through the perforations in theplate. Plates 45 are used inloomshaving grippers LB'Which-reach upward and pull theL yarn 's-Idown into-placein the fabric.

The I specific structure desc ribed'i may v i modified byesupporang Ithweparete yam p V V V i a a A packages inadifi'erent'nianner and'by'changa r z The new- .pile yarn carrier 22, as illustrated" in Figures v3to 9; comprises a bar 27 carrying'devicesg28 at its' ends which serve as a means I for suspending the bar between the carrier chains; These devices may beof any of the types nowused for' mounting" yarn When the yarn is carried,- as above de scribed, V the loom. operates muchamore eflicintlybecause the supplyof yarn'containedf in the separatepackages is greater than that contained by the-sploolsformerly usedand ing is necessary. -T11e1 fabric" produced. is smoother, and containsless imperfectionsyas trouble from the tension devices now fuse. is eliminated; and th pattern v(may be quickly :and simply changed byfchanging: the arrangement of thepackages inthexcarriers.

I-claim Having a1 s: deserib d myinvention gwhat' and a slotted bottom through which the yarns are drawn; from theipackages,- each magazine containing aflplurality ofgarn packages and being removable indepen ently of the othe inagazines,,and means forffeedingja yarn 4 from each" package i; to the tuft-forming- 7 ms compris i lng; a carrler frame, 3- means for', carrying-:21:

mechanism of the loom. 2. :A tuftyarn carrier forloo plurali-ty of cops of yarn upon theframein cludlng a; plurality of-magazines, each; maga zine containing a' plural'ity of cops in narrow;

and being :in the form ofza box rwithlone vertical slde open, andyslotsrin the bottom thereof through Iwhich'the yarns; are drawn from the cops, eachiyarn beingwithdrawnthrough a separate'slot; and-means for feed- 2 ing' a yarn from each-cop 't'o the .tu'ftforming; mechanism of the loom'.

ing a carrier frame, meansfor carryingia plue .3. A tuft yarn carrier' for' looms cluding a plurality of magazines each having a slotted bottom through which the yarns ore drawn from the packages, each yarn being Withdrawn through a separate slot, a carrier box for said magazine and slots in the bottom of the carrier box crossing the slots in the magazines, the yarns from each magazine all being withdrawn through one slot in the carrier box, and means for feeding a yarn from each package to the tuft-forming mechanism of the loom.

4. A tuft yarn carrier for looms comprising a carrier frame, means for carrying a plurality of separate packages of yarn upon the frame including a plurality of magazines, each containing a plurality of yarn packages, a carrier box supporting said magazines, means for retaining the magazines in the carrier box, said magazines being individually removable from said box, and a plurality of straight guide tubes mounted side by side in a row lengthwise of said frame, said tubes being mounted below and spaced from said box and having open upper ends facing the bottom of the box.

5. A tuft yarn carrier for looms comprising a carrierframe,means forcarrying a plurality of packages of yarn upon the frame including a plurality of magazines, each containing a plurality of yarn packages in a row transverse to the long axis of said frame, a carrier box supporting said magazines, means for retaining the magazines in the carrier box comprising a bar extending across the magazines, said magazines being independently removable from said box, and means for feeding a yarn from each package to the tuft-forming mechanism of the loom, said means including straight feed tubes mounted on said frame side by side in a row extending lengthwise thereo 6. A tuft yarn carrier for looms comprising a carrier frame, a plurality of magazines removably mounted on said frame and each carrying a plurality of separate packages of yarn, and feed tubes for feeding a yarn from each package to the tuft-forming mechanism of the loom, said tubes being mounted on said frame below and independent of said magazines.

7. A tuft yarn carrier for looms comprising a carrier frame, a plurality of magazines removably mounted on said frame and each carrying a plurality of separate packages of yarn upon the frame, openings in the bottom of each magazine, one for each yarn package therein, for passage of the yarn end from said package and a perforated plate on said frame below and independent of said magazines, said plate having perforations through which a yarn from each package is fed to the tuft-forming mechanism of the loom.

8. A loom comprising a frame, Weaving mechanism, a pair of endless chains, sprocket wheels supported from said frame and carrying said chains, carrier frames suspended removably between said chains, a plurality of magazines supported on each of said frames and having slots in the bottom thereof, a carrier box on each frame supporting said magazines and having slots in the bottom thereof crossing said first mentioned slots, a plurality of feed tubes on said carrier frame, a plurality of cops of yarn in each magazine, each cop having a yarn therefrom extending through a slot in the magazine, a slot in the carrier box and a feed tube, and means on the loom for detaching the carrier frame from the chains and moving it to supply yarn from the feed tubes toform pile tufts in the fabric being woven.

9. A. tuft yarn carrier for looms which comprises a carrier frame, a support on said frame, a series of magazines on said support, each magazine having an open vertical side closed by the adjacent magazine except in the case of one end magazine in the series, means for holding said magazines on said support, a plurality of yarn packages in each magazine, and means on said frame independent of said magazines for guiding yarn ends from said packages.

In testimony whereof I afiix EDWIN O.

my signature.

SHUTTLEWORTH.