US1953044A - Method of producing double tuft pile fabrics - Google Patents

Description

March 27, 1934. I w. B. COOPER METHOD OF PRODUCING DOUBLE TUFT FILE FABRICS- Filed March 25, 1932 2 Sheets-Sheet m ..M MK m m6 lr M W. B. COOPER METHOD OF PRODUCING DOUBLE TUFT'PILE FABRICS March 27, 1934.

2 Sheets-Sheet Filed March 25, 1932 lNl/ENTOR M ATTORNEY Patented Mar. 27, 1934 r I' 1 r 1 UNITED STATES PATENT OFFICE METHOD OF PRODUCING DOUBLE TUFT '7 FILE FABRICS Wellesley B. Cooper, Amsterdam, N. Y.-, assignor to Bigelow-SanfordCarpet Co., Inc., Thompsonville, Conn., a corporation of Massachusetts Application March 25; 1932, Serial No. 601,091

12 Claims. (Li. 139-8) This invention relates to the method of weavand accompanying drawings of one good embodiing double tuft pile fabrics. ment thereof. 7

Woven pile fabrics may be divided into two In the drawingsz- 1 general classes. First, those in which the pile Fig. 1 is a sideelevation of sufiicient portions l surface is formed by looping some of the weavof an Axminster loom to make clear the method ing threads over pile wires during the weaving of the present invention and the fabric resulting operation and withdrawing the pile wires to leave from the practice of such method; a cut or uncut pile surface. Second, those in Fig. 2 is an enlarged detached view showing the I which the pile surface is produced by pile formformation of the respective sheds and the cutting ing yarns introduced as tufts into the fabric near mechanism for separating the two webs;

the weaving point from an extraneous supply. .Figs. 3, .4, 5 and 6 are diagrammatic views Pile fabrics of the second class are generally showing the steps of the present method and the known as tuft pile fabrics, and may be typified in resulting two tuft pile fabrics; Axminster or similar carpets or rugs, and it is Fig. 7 is an enlarged view showing the two'tuft 18 to this general class of fabric and method for pile fabric webs as cut apart;

their production that the present invention re- Fig. 8 is a diagrammatic view of a'modification; lates. In weaving pile fabrics of the first class and wherein the pile surface is produced by pile form- 1 Fig. 9 is a similar view of the two tuft pile fabing warp threads looped about pile wires,it has rics produced under the modification of Fig. 8

been a well known practice to produce such faband cut apart. 7 p

' rics either singly or double, but in tuft pile fabrics The method of. the present invention and the the problem for the production of more than one tuft pile fabric producedthereby will be described in a single operation presents difficulties by reain connectionwith an Axminster loom which lends son of the fact that the pile forming yarn is taken itself advantageouslyv to the performance of the from an extraneous supply and transferred to method and the production of the double tuft the weaving point where it must be presented to pile'fabric. both webs being woven. The loom shown in Fig. 1 is of the'general Ax- One of the objects of the present invention is minster type except as modified in accordance to provide a method whereby double tuft pile with the performance of functions required by 30 fabrics may be readily produced in one operation the method of the present invention and only so so that when the two webs are cut apart two much of the loom is indicated as is required for tuft pile fabrics result. a complete disclosure of the inventionto one ex- In recent years a pronounced demand has perienced in the art of Axminster weaving. arisen for tuft pile fabrics such as Axminster The loo-m frame 1 may be of appropriate con- 35 ca.pets and rugs, or the like, which shall have struction for the support of the operating parts the pattern of the pile surface produced upon the and rising therefrom are the standards 2 which back, and as a further development of the pressupport appropriate brackets 3for the usual carent invention this is accomplished during the prorier chain and its operating mechanism. As duction of the double tuft pile fabric. shown, the standard 2 has rising therefrom the 40 The present invention will be described in conbracket ton which is mounted the rocking lever nection with or the production oftuft-pile fabrics 5 which is operated by an actuator 6 from a usual of the Axminster type, but in the broader aspect going part of the loom now well understood. The of the invention. it is not confined to this parrocking lever 5 has pivotally. connected thereto ticular class of fabrics. at '7 the arms 8 and 9 which may be of usual type .45 In accordance with the present invention two and mounted on the shaft 10 is the sprocket wheel warp sheds are provided andthe tuft pile forming A 11 about which passes the carrier chain 12, as yarns are looped about corresponding weftshots usual. .The arms 8 and 9 through the actuation in the two sheds, and, in the production of the ofthe rocking lever 5 give a progressive step-bypattern on the back, the pile forming tuft yarns step movement to the sprocket 11 through-the 50 are looped about back weft shots in each of the push and pull'pawls 13 and 14 whereby the steptwo sheds, so that when the websarecut apart by by-step movement of the carrier chain 12 is acsevering the tuft yarns each'web will present the 'complished. v i 7 pattern of the pile on the back. I The carrier chain 12 supports tube frames 15,

The invention and novel features thereof will only one of which'is indicated in the present illus- 55 best be made clear from the following description tration of the machine. 1 0

As the weaving proceeds successive tube frames As indicated in 6, the two weft shots 2 are detached from the carrier chain 12 to present one in the upper and the other in the lower shed,

presenting tubes 16 of the tube frames are sufiibetween the two sheds.

ciently long to carry the tuft yarn to the weaving When the pile forming tuft yarn 30, as indicated point of the two warp sheds as will presently apin Fig. 6,'has been cut and the two webs thus seppear. The means for transferring a tube frame arated, the pattern of the pile surface in each from the chain carrier 12 may he of usual conweb will appear at the hack, a condition which etruction, as indicated, except that means are is best indicated in Fig. 7 where the two'wehs are provided for tilting the tube frame and conseshown with the threads beaten to place.

15 the insertion of the back weft shots in the lower continuous run of tuft yarn between the two arm 19 connected by'a link 20 to the tube frame tuft pile surface-and separate the webs as the presenter, and thereby impart rocking movement two webs are woven. 20 thereto. It may be desirable at times to amplify the Pivotally mounted at 21 on the loom frame is the pattern effect on the back of at least one of the reed carrying arm 22 on which the usual reed of webs and to this end the method contemplates the Axminster loom is secured and such arm 22 severing the standing portion of the tuft yarn 30 i iven its appropriate rocking movements to above the warp threads of the upper shed by the at up the We t y nec ions W th the lower knives or cutters 31 and 32, thus producing at the -1( arm 3' eo Wh h may be actuated as usual back of the top web a further amplification of the froma going part of the loom. pattern on the back by the end 33 of the tuft Mounted upon the loom frame are the two yarn. breast plates 24 and 25 between which the two The condition described with respect to Fig. webs may pass during weaving. l'he loom fram 8 is portrayed in Fig. 9 where the threads of the 10.

the two Web a indicated in pp p e where they pass about the back weft shots.

as means such as the a -up or sp k le s 8 a d In the present disclosure of the invention each 29 serve to take up the two webs during the web is formed of the three warp threads A, B We vin DBIafi I- and C, or A, B and C, of which A and-A are 40 *W as indicated in Figs. 1 and 2. Wh they densed structure illustrated by Fig. 7, both webs a h w one above the other. 1 presenting the pattern of the pile forming tufts Each of the two sheds or warp sets may be t back associated with weft shots in any usual manner, wh th d bl tuft pile fabric is produced but as indicated in the present instance of the under t method indicated in 3', th t 5 invention each shed is formed of a chain or binder webs may remain united .until after t 20 Wa p. A and A nd he fi r warp B and C, pletion of the weaving operation and thereafter and B and C a d One Complete Cycle 00111- separated by a separate cutting action, but in p ed in the three W f h ts 1, 2 and either case, such as in Figs. 6 and 7, the pile 50 according to the present method, wherein the free but Staggered weft shots in t t Shefls. end of. the tuft yarn 30 is passed through the w is c1aimedis;

warp t rea s' the upper shed and extended to 1. The method of weaving a. south tuft pile a Point between the upper and lower Sheds" The fabric, which consists in forming two warp sheds back Weft Shot 2 0f the upper shed and F face for the production of two webs, introducing the 55 Weft Shot 3 of the lower Shed W then lald, pref free end of a pile forming yarn between the Warp the tuft yam 30 is looped about the back iug tuft yar about a weft shct in that shed, shot 2 of the Ppper Shed- The tube 16 of m thereafter passing the pile forming yarn through tube frame 15 15 then moved downwardly a the Warp threads of the opposite Eroping 60 mg between the Warp threads of both Sheds and the pile forming yarn about a weft shot in the the tube frame is tilted, Fig. 4, to permit the o osite Shed and then cuttm the n m introduction of the back weft shot 2 of the lower if yam. g P e mung 65 sponding back Weft Shots 2 theupper and lower for the production of two webs, introducing the 70 ment Sfthe tube 16, as indicated in Fig. 5, the looping the pile forming yarn about a weft shot the upper shedinto the position indicated in Fig. pile forming yarn. 75 1 ready for the next cycleofloom operation. 3. The method of weaving a double tuft pile fabric, which consists in forming two wa Sheds for the production of two webs, introducing the free end of a pile forming yarn between the warp threads of one shed, then looping the pile forming tuft yarn about a back weft shot in that shed, feeding the warp threads of both sets longitudinally then looping the pile forming yarn about a back weft shot in the opposite shed that the loops shall be in staggered relation and each web shall present the pattern of the tuft pile on'the back.

4. The method of weaving a double tuft pile fabric, which consists in forming two warp sheds for the production of two webs, passing the free end of pile forming tuft yarn through the warp threads of one shed, then looping the standing part of the same pile forming yarn about a weft shot in the opposite sheds in succession, and cuttingthe pile forming tuft yarn.

5. The method of weaving a double tuft pile fabric, which consists in forming two warp sheds for the production of two webs, holding the tuft yarn with one end free and passing the freeend between the warp threads of one shed, then looping the held portion of the same pile forming yarn in succession about weft shots arranged in staggered relation in the two opposite sheds that the tuft yarn shall take a sinuous course between the sheds, and cutting the tuft yam.

6. The method of weaving a double tuft pile fabric, which consists in forming two warp sheds for the production of two webs, holding the pile forming tuft yarn with one end free, looping the free end of the tuft yarn about a weft shot in one shed, passing the held po tion of the tuft yarn between the warp threads of the other shed and looping it about a weft shot in that shed and severing the held portion of the tuft yarn.

7. The method of weaving a double tuft pile fabric, which consists in forming two warp sheds for the production of two webs, holding the pile forming tuft yarn. with one end free, looping the free end of the tuft yarn about a back weft shot in one shed,'passing the held portion of the tuft yarn between the warp threads of the other shed and looping it about a back weft shot in that shed and severing the held portion of the tuft yarn.

8. The method of weaving a double tuft pile fabric, which consists in forming two warp sheds for the production of two webs, introducing the free end of a pile forming yarn between the warp threads of one shed to a position substantially midway betweenthe two sets of warp threads, then looping the pile forming tuft yarn about a weft shot in that shed, then moving the two sets of warps longitudinally and looping the pile forming yarn about a succeeding weft shot in the opposite shed.

9. The method of weaving a double tuft pile fabric, which consists in forming two warp sheds for the production of two webs, holding the pile forming yarn with one end free introducing the free end of the pile forming tuft yarn between the warp threads of one shed, looping the held portion of the pile forming yarn about a weft shot in one shed and binding it about a weft shot in that-shed, then passing the held portion of the tuft yarn between the warp threads of the opposite shed and binding it about a succeeding weft shot in that shed.

10. The method of weaving a double tuft pile fabric with the pattern of the pile on the back of each web, which consists in forming two warp sheds for the production of two webs, looping pile forming tuft yarn about a back weft shot in one shed, then looping the pile forming tuft yarn about a back weft shot in the opposite shed, returning the pile forming tuft yarn to the first shed and cutting it above the warp threads of the first mentioned shed.

11. The method of weaving a double Axminster fabric, which consists in forming two warp sheds for the production of two webs, moving a tube frame to pass the free ends of tuft yarns between the warp threads of one shed and looping the tuft yarns about a weft shot in that shed, passing the tubes of the frame between the warp threads of the other shed and looping the tuft yarns about a weft shot in that shed, withdrawing the tube frame and cutting. the tuft yarns between the two webs.

12. The method of weaving a double tuft pile fabric which consists in providing two sets of warps for the production of two webs, introducing the tubes of a tube frame between the 'warp threads of one shed with, the free ends of the pile forming yarns between the-two sets of warp threads, looping the tuft yarns about a weft shot in one shed, passing the tubes of the tube frame between the warp threads of the opposite set of warp threads, looping the tuft yarns about a weft shot in that set, withdrawing the tube frame, and cutting the tuft yarns.

WELLESLEY B. COOPER.

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