US2182610A - Manufacture of velvet woven in double piece - Google Patents

Description

Dec. 5, 1939. CALQNNIER 2,182,610

MANUFACTURE OF VELVET WOVEN IN DOUBLE PIECE Filed Nov. 4, 195'?" INVENTOR= MAURICE CALONNIER 401 102 103 10l- 105 10G 10? 10B 109 110 411 112. l

ATTO'RNENS Patented Dec. 5, 1939 mrrso STATES 2,1sa610 I MANUFACTURE OF VELVET WOVEN DOUBLE PIECE Maurice C'al0nnier,

Saint-Etienne, France- Application November 4, 1937, Serial No. 172,693 In France November 9, 1936 2 Claims.

This invention relates to improvements in the manufacture of velvet woven double or face to face by two separate shuttles in which the bindings of adjacent pile warps are spaced apart by '5 one or twopicks.

The object of the present invention is to obtain a better distribution of the pile warps than hitherto and at the same time produce a smooth velvet with a thick pile in which the number of the weft threads necessary for obtainin thickness of pile is reduced.

An essential feature of the present invention consists in arranging each thread of the two sets of pile or nap threads ahead of the adjacent one, in the direction of the warp, a distance corresponding to the interval'between two adjacent weft threads, in the upper sheet of threads as well as in the lower sheet, when each of said pile threads is considered as separately performing the usual work of the manufacture of fabrics of this kind, and this independently of the back or ornamentation is thatin each face of the fabric all the weft threads interweave with the warp threads in plain or regular order and the bindings of adjacent pile warp threads are spaced apart either one or two picks according as to whether a ground warp thread does not or does intervene between the adjacent pile threads.

While accelerating the manufacture, this argo rangement not only produces a smooth velvet, with a thick-pile, but actually reduces by about 40 per cent the number of weft threads necessary for obtaining an equivalent thickness of the pile with the old arrangement.

Other features of the present invention will result from the following detailed description of some specific embodiments thereof.

A preferred embodiment of the present invention will be hereinafter described, with reference to the accompanying drawing, given merely b way of example, and in which:

Figs. 1 to 6 inclusive are respectively sections on the lines ll, 2--2, 3-3, 44, 55, and 66 of Fig. 7, showing the work of the various pile and back threads;

Fig. '7 is a diagrammatic perspective View showing the arrangement of the threads constituting the two backs and the pile between them.

- In each of the six first figures, the weft threads (visible in perspective in Fig. '7) are represented by black points and designated by reference characters I, 2,3, 4, 5, 6, 7, 8, 9, In, H and I2 in the upper fabric portion and Hll, I02, I93, H64, I05, I06, I01, I08, H39, H0, Ill, and H2 nthe lower portion of the same fabric.

g the same the pile warp threads d d 01 and d while the lower fabric portion, designated by 1), includes warp threads 11 and b Reference line c- -c indicates the line along which the warp threads are cut so as to separate the two portions of velvet fabric .a and b from each other.

The paths of the various warp threads of the twofabric portions a and-b are shown in the dia- .grammatic sections comprising-Figs. 1 to 6; each thread being in the same position relative to the weft threads 8 to l2 and Ill! to H2. Thus- Fig. 1 shows the path of the pile warp thread 11 Fig. 2. shows the path of the ground warp threads (1 for the upper portion a and b for the lower portion b of the combined fabric.

Fig. 3 shows the pathfollowed by the pile warp thread (1 Fig. 4 shows the path followed by the pile warp I thread 11 between which and the preceding pile warp thread d there is no ground thread. v

Fig. 5 shows the path of the ground warp threads a for the upper portion a and b in the lower portion b'of the combined fabric.

Fig. 6 shows the path followed by the pile warp thread d Fig. 6 is immediately succeeded by a section similar to Fig. 1 there being no intermediate ground warp threads between the pile threads (1 and d The positions of the various pile warp threads and of the ground warp threads are then repeated as above described over the whole width of the velvet fabric.

As will, be seen'from the diagrammatic perspective view shown in Fig. 7 each warp thread of each fabric, whether a pile or ground thread crosses the weft threads in opposite relationship to the preceding and succeeding one, e. g. when considering the weft thread 6, the warp threads d d (1. pass above the weft thread and the warp threads a d (1 below it whilst for the preceding weft thread 5 and the succeeding weft thread I the warp threads d (1 (1 pass below the weft threads and the warp threads d d a pass above them. Thus the weft threads in each face of the fabric interweave with all the warp threads in plain or regular order and the bindingsof adja cent pile warp threads are spaced apart either one or two picks according as to whether a ground warp thread does not or does intervene between the adjacent p-ile warp threads.

It will be seen by comparingthe paths of the 7 odd numbered pile warp threads d and d as shown inFigs. 1 and 4 and those of the even numbered pile warp threads (1 and d as shown in Figs. 3 and 6, that when the thread 12 passes from the top fabric a to the bottom fabric 2), the thread d passes from the bottom fabric b to the top fabric a and also that, when the thread at passes from the top fabric a to the bottom fabric b, the thread 01 passes from the bottom fabric b to the top fabric a but that when the threads d and d are passing respectively from the top-fabric to the bottom fabric and from the bottom fabric to the top fabric the threads d and d are merely interweaving with the weft of the top or bottom fabric and vice versa. This necessitates that the pile warp threads should be carried on two separate beams, the odd numbered threads d and (1 being carried on one beam and the even numbered threads (1 and d on the other beam.

In a general manner, while I have, in the above description, disclosed what I deem to be practical and efficient embodiments of the present invention, it should be well understood that I do not wish to be limited thereto as there might be changes made in the arrangement, disposition and form of the parts without departing from the principle of the present invention as comprehended within the scope of the appended claims.

What I claim is:

1. A double woven velvet fabric adapted to be cut and comprising two opposed ground fabrics each containing ground warps and ground wefts, the two ground fabrics being interconnected by pile warp threads arranged in staggered order with respect to the ground wefts and each being woven in W formation with respect to the ground wefts, with all the weft threads of each of the opposed fabric faces interwoven with all of the warp threads of their respective faces in plain weave formation, the bindings of adjacent pile warp threads being staggered one pick and the bindings of pile warpthreads separated by an intervening ground warp thread while being stag gered two picks, whereby the back of each fabric face consists of threads woven in plain weave order. V

2. As an article of manufacture, a double woven velvet fabric adapted to be cut and comprising two opposed ground fabrics each containing ground warps and ground wefts, the two ground fabrics being interconnected by pile warp threads arranged in staggered order with respect to the ground wefts and each being woven in W formation with respect to the ground wefts, saidfabric having a weaverepeat of six weft threads with all the weft threads of each of the opposed fabric faces interwoven with all of the warp threads of their respective faces in plain weave formation, the bindings of adjacent pile warp threads being staggered one pick and the bindings of pile warp threads separated by an intervening ground warp thread while being staggered two picks whereby MAURICE ALONN'IER.

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