US1077227A - Woven fabric. - Google Patents

Description

H. LE DOUX & J. K. DALKRANIAN. WOVEN FABRIC.

APPLICATION FILED IBB.I2, 1912.

Patented Oct. 28, 1913.

2 SHEETS-SHEET 1.

H. LE DOUX & J. K. DALKRANIAN.

WOVEN FABRIC.

APPLGATIoN FILED Emma', 1912.

Patented Oct. 28, 1913.

2 SHEETS-SHEET Z.

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11 'JJ w f 1 11 1 lit UNTTED STATES, PATENT onirica.

HECTOR LE DoUx, CE WORCESTER, MASSACHUSETTS, AND JAMES KAEMI DALKEA- NIAN, or WEEHAWKEN HEIGHTS, NEW JERSEY; SAIn DALKRANIAN ASSIGNCE To UNITED STATES rERsIAN CARPET COMPANY, A cEPoRATIoN or NEW YORK, AND SAID LE DoUx AssIGNo'R To CE'oMrT'oN a KNoW'LES LooM Wonxs, A CORPORATION 0F MASSACHUSETTS.

WovEN EABRIC.

Specification of Letters Patent.

Patented oct. 28,1913.

Application aiearetruary 1 2, 1.9124. serial No; 677,037.

To 'all whom z't may concern: n.

Be it known that. 'we,.,HECToR\ LE DOUX and JAMES K. DALKRANIAN', citizens ofthe United States, residing, respectively, at Worcester, in the county of Worcester and State of Massachusetts, and at Weehawken Heights, in the countyof Hudson and State of New Jersey, have jointly invented certain new anduseful Improvements in Woven Fabrics, of which t-he following is a specifi'- cation.

Our invention relates to woven textile fabrics, and more particularly' fabrics of the eastern, or Persian type, automatically manufactured on looms of the classfshown 'and described in U. S. Letters Patent, Nol.'

858,963. In said class of loo'lis, the -tuft yarns yfor forming the'pile areinserted between the 'warp' threads, and interwoven therewith by carrying the 'tuft the Warp threads to form Persian knots, or

the like, which are firmly heid in the fabric.

by filling threads inserted into the shed by a filling needle or carrier.

In the manufacture of tufted fabrics on the class of looms referred to, the filling threads which are put into 'the shed, are ordinarily stretched and taut', and cause, on

the crossing ofthe warp threads, not only a' considerable shrinking of the fabric, but also prevent the pile from being beaten up closely and evenly by the lay, which 4causes an unev'en appearance of the fabric, and conse-Y quently a'ects the commercial value of the same.

The object of our invention is to provide a woven fabric of the type 'referred to, 'of

improved construction.

v.In our woven fabric, we use a specially made filling, which,'with the ordinary filling, will be put into the shed by the filling needle or carrier, to bind the pile or tuft yarn. The specially made filling, which we term in this instance extensible ll'in'g,-is preferably -made o'f Soft yarn, which with a number of 'threads loosely twisted together in on'e or more strands, are twisted around one or two fine centerI threads or strands, which are strong enough to hold the extensible filling at its normal length, While lit is being put in-to the shed bythe filling needle or carrier. As soon as the warp threads are yarns around' crossed, and the lay'beats up, a severe strain is brought upon the filling, Awhich causes the fine center threads' or' strands to break at 'several places, and allows the loosely twisted 'outer yarn t`o be extended, to an amount of -li'alf as .much or more than the normal length of the ordinary lling. By means of this 'extensible filling, in connection with the ordinary filling, the' tufted fabric is preventedfrom shrinking, and an even and close beating up ofthe pile is obtained. Beside theextensible filling, the ordinary filling is put into another shed, which does not require as much stretching of the filling.V

Our invention consists in our improved construction of woven fabrics of the type referred to, and lmore particularly in using two diii'erentfillings, one an extensible filling, and the other the ordinary filling, which fillareput into the sheds by a filling needle 'or carrier, as will be hereinafter described.

We' 'have shown in the drawings and described herein, mechanism for making our improved woven fabric, which mechanism, according to the weave, automatically Selects the 'extensible filling, or the ordinary filling, to be used, as will bel hereinafter described. 'We have only shown in the drawings a detached portion of a tufted fabric loom, with 'our improvements combined therewith, suiiicient to enable those skilled in the art to understand how o'ur improved woven fabric is made. lReferring to the drawingsz-Figure l 'is a front View of a detached portion of 'it-he lay, and the needle motion, looklng in .the direction, of arrow a, Fig. 2. Fig. 2 is a plan view of the parts shown in Fig. l, looking'in the direction of arrow b, same figu're. Fig..3 is a section, on

line 3,3, Fig. 1,' looking in the direction of arrow c, saine gure. Fig. 4 shows, on an exaggerated scale', a transverse cross section ofthe fabric, with the two different fillings inserted. The inner broken center threads of the extensible filling are shown by broken lines at the right.' Fig. 5 illustrates, on an enlarged Scale, a detached portion of one end of the extensible filling, with one end unt'wisted, and, Fig. 6 shows a tension mechanisl'n fo'r the extensible filling.

" In the accompanying drawings, 1 is a portion of the lay, having with dents through which the warps 3 pass, see Fig. 2, from therear of the loom.

4 is the tufted fabric, which in this instance is woven with the lpile 5, having its ends projecting belowthe lower surface of the fabric. i

6 is the filling needle or carrier, guided upon a guide roll 7, which is rotatably mounted on a shaft or stud 8 on a stand 9. A reciprocating movement is communicated to the filling needle 6 at predetermined times, from mechanisms on the loom, not shown.

Two horizontally extending levers 11 and 12, have their hubs 11 and 12', see Fig. 2, pivotally mounted on a stud 10, in a boss 9 on an arm 9 of a stand 9. The lever 11 has adjustably attached to its rearwardly extending arm, see Fig. 3, a stud 13, to which is pivotally connected the upper end of a downwardly extending connector or rod 14, which rod 1s operated by mechanism on the loom, not shown. The oppositelyextendmg arm on the lever 11 is provided with a boss 11" at its end, to which is adjustably se'- cured the upwardly extending thread holder 15, provided wi. h a thread-eye 15', through which in this instance the ordinary filling 16 passes from a spool, not shown, to the fabric.

At predetermined times operated, and on the downward movement of the thread-holder or guide 15, the lling 16 is moved downwardly and enters the op'en slot 6 in the/end of the filling needle 6, and the movement of said filling needle 6v .carries the filling 16 into the shed. The second lever 12 has a bolt 17 adjustably secured thereto at its outer end, to which is pivotallyv connected the upper end of a downwardly extending connector. rod 18, which rod is operated by mechanism on the loom, not shown. The opposite arm of the lever 12 is provided with a boss 12" at its end, in which is adjustably secured the up-- wardly extending thread holder 19, which has a thread-eye 19', through which inthis instance the extensible filling 20 passes from the delivery spool to the fabric. rlhe downward movement of the arm 12, and the thread holder 19, at predetermined times, causes the-extensible filling 2O to enter the open slot 6 in the end of the filling needle 6, see Fig. 1and the movement of said filling needle 6 carries the filling 2Ov into the shed.

The two fillin 16 and 20 are preferably carried alternate y into the shed, according to the operation of the loom. The extensible filling 20, as shown in Fig. 5, is made in this instance of soft twisted vthreads 20', which are loosely twisted in this instance inftwo strands around the interior or center ,fine threads 20". threads 3, on the fine threads 20 beating up of the lay, the will be broken at several the reed 2 thereon,

the lever 11 is Onthe crossing of the warp places, as shown at the right in Fig. 4, and allow the outer filling threads 20 to extend or stretch, to bind the warp threads, as shown in Fig. 4, withoutl any shrinking of the fabric, and consequently any uneven appearance of the fabric.

To prevent the extensible filling from unrolling too fast, and to hold the lling tight as long as it is not in use some tension device is provided, one style of which is shown in Fig. 6. A spool 21, see Fig. 6, is rotatably supported on a downwardly hanging rod 22,

in a conical receptacle 23, which is secured to a framework 24 at the side of the loom.

The filling 20 passes from the spool '21- through an-eye 23 inthe bottom of the receptacle 23, and under the end of a tension spring blade 25, which is secured at one end, in this instance within a trough or guide-26. The extensible filling 2O passes through a thread-eye 27, andunder the hook eye 28 on an upwardly extending wire 28, and then through an eye 29, and tube 30 supported on the frame 24, see Fig. 6. From the tube 30, the extensible .filling `2O passes to the thread holder eye 19, above described. @n the insertion of the extensible filling 20, the hook wire 28, pivotally attached at its lower endV to the end of a lever 31, is raised throughmechanism on the loom, not shown, to the position shown by broken lines in Fig. 6. At the same -time,' the `tension spring 25 will be raised from the extensible fillinr 20, by the -downwardly extending rod 32, willich has its lower end end of `a lever 33, which is operated` by a cam on the loom, not shown, at predetermined times. A helically coiled contraction spring 34 attached at one end in this instance to a boss on the-rod 32, and atiits other end'to the frame 24, acts to yieldingly pivotally connected to the' move downwardly the lever 33 to hold the roll thereon in engagement with the operat ing cam.

It will be understood that the manufacture of our improved woven fabric, with an extensible filling, in connection with an ordinary filling, may be carried out by different mechanisms, and we do not limit our invention to the particular mechanism shown in the drawings and above described.

We have described herein our improved woven fabricas a tufted fabric, but it will be understood that we do not limit our 1nvention to tufted fabrics, as our improve-'120 ments in woven fabrics may be used in connection with other classes of fabrics, in which the crossing of the warps and the beating of the fillings, enough to cause shrinking of the fabric, unless the filling extends or stretches.

Our extensible made up of threads `of dierent tensile strength, some of said threads to be extendof the lay, puts-too much tension on one.

filling may be deseribed as' forming ter, and threadswrapped or twisted around a extensible ed without brealn'ng, and the others to be to, warp threads, tuft yarns Wrapped around the pile, and

the warpthrealls, and formin filling threads binding the pi e, comprising in ordinary -filling, and a illin having one or ymore center non-stretcha le threads,

azsubstantial straight core or centhe center core, and adapted` to stretch or extend lengthwise when the center threads break. a

2. Al tufted pile fabric, comprising warp threads, pile yarns inserted between and looped around one or more of the Warp threads, filling threads, comprising an ordi-l nary illing, and an extensible illing,`said filling comprising a broken thread or threads, and extended strands wrapped or twisted around said broken threads.

3. A tufted pile fabric, com rising warp threads, pile yarns inserted iietween and looped around one ormore of they warp threads, filling 'threads' substantially nonextensible, and other lling threads, comprlsing a substantially straight core or cen-v ter adaptedA to be broken, and threads wrapped or twisted around the center core and adapted to stretch or extend lengthwise when the center breaks.

4. A woven fabric, threads, l y lling threads, and other filling threads comprising a substantially straight core or comprising warp center adapted to be broken, and threads.

wrapped ortwisted'around the center core, and'adapted to stretch or extend lengthwise when the center breaks.

Witnesses: v

J. B. SYME, M. HAAS.

and substantially non-extensible

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