US1379931A - Pile fabric - Google Patents

Description

'F. OTT.

PILE FABRIC.

vAPPucATloN FILED' APR.11,1919.

Patented May 31, 1921.

- 2 SHEETS-sneer l M75/WM ffderab LL 17m/iwan FREDERICK OTT, OF NORRIISTOWN, I"ENNSYLVANZIA;u ASSIGNOR, BY' MESNE. ASSIGrNi iiiEN'rs, TCA. '.r; BAKER & COMPANY, INC., or MANiiYiiii-K,4 PENNSYLVANIN'A.

CORPORATION OF PENNSYLVANIA.

PILE FABRIC.

. Specification of Letters IEatent.; Ptnted MaX/'31, 1921 ,y

Application vfiled. Apri1`11, 41919. Serial No. 289,290.

T o all whom t may concern.

Be it kno-wn that I, Y FREDERICK CTT, a

.. citizen of the,l United. States, residing at Norristown, county of` Montgomery, and

StateofPennsylvania, have Iinvented a new and.. useful Improvement inv PileFabrics.

of which the following is ay full, clear, .and

n exact description, reference beinghad tothe accompanyingdrawings, which form a part ofV this speciication.

My invention relates to cut pile fabrics wherein two backing fabrics, connected by pile. warps. yextending continuously through both y'fabrics yandfrom one to the other, are

cutvin aplane midway between and parallel to both backingfabrics to form two halves, each constituting a complete finished fabric having..` on one facev al multitude upright cut pile ends.

The fabric displays characteristics, com? mon .to `woven pilefabrics inthat it is composed of a top backing, a bottom backing, pile warp threads which interlacewith the weft or4 filler threads of both backings and also extend=betweenthe Atop andbottom fabrics, and. binder. warp threads each of which extends throughY onlyA a singleA backing. The. fabric. is conveniently wovenl on a double loom, two liller shots. or weft picks beingl thrown simultaneously.-

The fabric also displays features which are. not common to woven: pile fabricshavf, ingthe characteristics speci-fied.l In aplthe fabric.

pearance, it exhibits atufted face whichis smooth and uniform, without the` eect of twilling.4 andJ without; parallel ridges or grooves. In many. pile fabrics, these ridges l j or grooves aregreadily noticeable, presenting often the 4appearance,.in certain lights, of

parallellines extending across :the face of The twill effect, is observable even in .many pile fabrics which .are Idevoid v ofthexridges-or grooves or` parallel line effectandf indeedfis very apt. to develop in any. weave. Ywhich is devised ito eliminate the other objectionable appearances... Another valuablecharacteristic of4 my new fabric is that localized severe pressure or friction.

willfnot permanently mar/thev fabric, the

interlacingf ofthe yarn being. such as to tend.y torestore displacedorv flattened pile threads to normal position.

Thelffabricinvolves not only alparticular of short T eprice.. 'I

arrangement of pile warpthreads but .apar-fv ticular arrangementof binderwarp threads,

whereby each pile threadis-secur'ely held in proper relation tothe illing'threads with yilhich` it engages and to the' adjacent pile VThe invention will vbe better,` understood by referenceto the accompanying drawings,

threads being indicated by singlelines toY differentiate from the double lines by which the pile threads vare indicated.

Fig` 3 is awview,` similar to Fig. 2*, .of the?. y

of" the ,second set..

pile warp threads y view of one ofthe `back- Fig. 4 is a, plan ings: fabric of Figs. 2 and 3 rection of. the arrows.

the same beingxa sectionthrough ther looking in thedij The .space .between the. threads relatively.

to the size of the threads isjgreatly exag.-

gerated in orderthat the constructionmay be more readily understood.. v .v

Inrevery repeat of the fabric there are two pairs ofpilewarp. threads l, 2 and" 3,",l

4, vAssociated with. one pair ofvpilewarp threads is a setof lfour binder warp threadsKV comprising a pair Iof binders s, t, engaging.

the filling of the. top backing 'and a pairof binders u, o, engaging the filling ,ofthe bot-r y tom backing. Associated with the other pair of.. pile warpthreads is a. set of fourbinding warp threads,v comprising a ,pair of binders fw, vengagingthe fillingvoflthe top backing anda ing. the filling p, etc.

pairl of binders y, e, Yengag,- of the bottom backing, The filling or warp threads are designated ciY to and over three successive weft threads there.-` 'i of, and thence across to the first backingand so on. This .is a known weave, but infmy specific adaptation thereof the two adjacent pile warp threads of each pair are` arranged to work exactly oppositely so that they intersect between the backings, the two pile warp threads of a pair never, therefore, interlockingwith the same weft thread, but interlocking with corresponding weft threads of the two backings respectively. The two pile threads of one pair extend in the same direction as the respective pile threads of the-adjacent Apair of the same set, but one pick in advance thereof.

Thus, pile warp thread 2 extends successively outside weft thread a, inside weft thread ZJ and outside weft thread o of the top backing, thence across to the bottom backing, thence successively outside weft thread Z, inside weft thread m and outside weft thread/1t, and thence across to the top backing. Pile thread 1 of the samepair extends successively outside weft thread c', inside weft thread y' and outside weft thread 7c of the bottom backing, thence across to the top backing, thence successively outside weft thread al, inside weft thread e and outside weft'thread j, and thence across to the bottom backing. The two pile warp threads 1 and 2 intersect between weft threads 0, 7c and al, Z. i

ln the other pair of pile warp threadsof the series, the pile warp thread 3 interlocks with weft threads Z), 0 and UZ of the top backing and m, n and o of the bottom backing, while pile warp thread t interlocks with weft threads j, 7c and Z of the bottomv backing and weft threads e, 7 and g of the top backing, the two pile warp threads intersecting between weft thread oZ, Z and c, m, being therefore one pick in advance of (or behind, dependent upon the order in which the shots of weft are thrown) the pile warp threads 1 and 2.

In weaving the goods, each pair of pile warp threads occupies one dent or split of the reed and the four associated binder warp threads are drawn in through the same dent or split. The manner of interlacing of the binder threads with the weft threads is of importance. Taking the two binder warp threads s, t, of the top backing associated with the two pile warp threads 1 and 2: Binder s floats on the outside of weft threads a, Z) and 0, thenc'e extends successively inside weft thread d, outside weft thread c and inside weft thread f, thence floats outside the next three weft threads, binds in the three weft threads following and so on. Binder t extends successively inside weft thread a, outside weft thread b and inside weft thread c, lthence floats outside weft threads (Z, e and 7", binds in the next three weft threads, and so on. lt will thus be seen that one binder, s, always binds in the pile warp thread 1 and floats outside the filling where the pile warp thread 1 interlaces with the bottom backing, and that the other companion binder t always binds in the pile warp thread 2 and floats outside the filling where the pile warp thread 2 interlaces with the bottom backing.

rl`he other two binder warp threads u, e, of the same set are similarly interlaced with the filling of the bottom backing, and the binder u always binds in the pile warp thread 1 and the binder o always binds in the pile warp thread 2.

Binder threads w, w,

y and occupy a- 'similar relation to pile threads 3 and il.

lt will be observed that both binder warp of a set (for example, threads s and t, Fig. 2) extends over or outside each weft thread (for example, thread e) under or within which the adjacent pile warp thread (thread 1) extends. rlhis feature is of importance in that the pile thread, at such point'in the knitting, does not pass from one backing to another, but passes to the center of the fabric and back again and hence is relatively slack. ln the event of any irregularity as, for instance, a knot or lump, in thel yarn at this point, the pile thread, if it slides along a binder warp thread, may not pull through and produces an irregularity in the goods at this point. ln my improved weave, however, both binder warp threads of a set are on the outside of the fabric at this point and 'thus afford no obstruction to the free slippage of the yarn.

Having now fully described my invention, what l claim and desire to protect by Letters Patent is:

1. A pile fabric composed of two backing fabrics comprising weft threads and pile warp threads all interwoven with the weft threads of both backings, the pile threads being arranged in pairs, the threads of each pair crossing between the backings and ex- 105 tending in opposite directions backward, forward and backward around successive weft threads in each backing, the threads of one of said pairs being one pick in advance of the threads of the adjacent pair; im and four binder warp threads associated with each pair of pile warp threads, of which two are in each backing, each of the said two binder warp threads of a set extending successively forward, backward and 115 forward around three successive weft threads while its companion thread floats over the back of the same three weft threads, each of said binder threads, where it extends successively forward, backward and 120 forward around three successive weft threads lying adjacent to a pile warp thread which extends successively backward, forward and backward over the same three successive weft threads.

2. A pile fabric composed of two backing fabrics comprising weft ythreads and pile warp threads all interwoven with the weft threads of both backings, the pile threads being arranged in sets of two pairs each, the is@ threads of each pair crossing between the backings and extending in opposite directions backward, forward and backward around successive weft threads in each backing, the threads of oneof said pairs being one pick in advance of the threads of the other pair respectively; and four binder warp threads associated with each pair of pile warp threads, of which two are in each backing, each of the said two binder warp threads of a set extending successively forward, backward and forward around three successive weft threads while its companion thread iioats over the back of the same three weft threads, both of said two binder warp threads of a set being arranged to extend to the back of a weft thread where the adjacent pile thread extends to the front of the said weft thread.

3. A cut pile fabric comprisingweft threads, pairs of binder warp threads, and two sets of cut pile warp threads between each pair of binder warp threads; each pile warpthread passes from front to back, then to the front, then to the back, and then to the front labout three successive weft threads, the one set of pile warp threads being staggered with relation to the other set, the arrangement being such that each thread of a set passes about three successive wefts while the threads of the other set pass about the next three wefts successively, the one binder warp of each set passes successively from back to front around three successive warp threads and then floats over the back of the next three wefts, while the other binder warp of said set passes from back to front around the three successive yweft threads over which the other weft thread ofl said set floats, vand floats 'over the back ofv the next three weft threads around which adjacent to a cut pile warp thread whichv is interwoven with the weft'threads together with the adjacent portions of the lcompanion binder warp thread.

4:. A cut threads, pairs of binder warp threads, and two sets of cut warp threads out of longitudinal alinement, between each pair of binder warp threads, each pile warp thread passes from the front about successive weft threads and back to the front, the threads of one set of pile warp threads being staggered with relation to the threads of the other set,vpor tions of each binder adjacent to the warp threads floating over the back of the weft threads which are interwoven with the pile warp threads, while-the adjacent por# tions of the companion binder warp threads pile Y pile fabric comprising -weft fare interwoven with the weft vthreads and n' the pile warp, the arrangement being such that the binder warp threads will not pass around the weft threads with an adjacent pile Warp thread.

In testimony of which invention, I have hereunto set my hand, at Philadelphia, Pa., on this 31sty day of March, 1919.

FREDERICK OTT. j

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