US1098533A - Woven fabric. - Google Patents

Description

W. F. SCOTT.

WOVEN FABRIC?.

APPLIGATION FILED SEPT. so, 1910.

Patented June 2, 1914.

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CDLUIIIA PLANOGHAIM C0.. WASHINGTON. D. C.

u NTTED STATES PATENT OFFTC.

WILLIAM/.t F. SCOTT, OF MADISON, MAINE.

VOVEN FABRIC.

Application led September 30, 1910.

To all 207mm it may concern Bc it known that l, WILLIAM F. Sco'r'r, a citizen of the United States, and resident of Madison, county of Somerset, State of Maine, have invented an improvement in lliovcn Fabric, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to the construction of woven textile fabric for use as a leader in machines such as are commonly used in the face finishing of woolen cloth such as kerseys and broadcloths. Machines of this character make use of a leader of a size at least equal to the piece of goods treated. This leader, therefore, may be as wide as the widest cloth and many yards in length, or as long as the longest piece of goods. lt is wound with. the cloth being treated on the roll of the machine, and is an important factor in securing the required finish on the face of the fabric. The vacuum produced in these machines is considerable, not unusually amounting to 28 inches, so that a very heavy pressure is produced, forcing the face of the leader into contact with. the face of the cloth. This necessitates that the face of the leader shall be as near perfect as possible, because any imperfection or irregularity therein will be transferred to the cloth being treated. The leader must also be sufficiently soft and thick to prevent printing through the roll of ends, imperfections, wrinkles, etc., under the heavy pressure.

The present invention provides a fabric of an exceedingly durable character, and answering all the requirements of a leader in machines of this character.

The nature of the invention will more fully appear from the accompanying de* scription and drawings, and will be broadly pointed out in the claim.

The drawing shows a diagram illustrating a preferred form of weave by which a fabric embodying the invention with its attendant advantages may be secured.

A fabric embodying this invention has a plurality of plies. The exterior plies constituting the two faces of the fabric are each closely woven from comparatively hard twisted yarn so as to present a smooth, even exterior surface. in weaving these plies the warps are preferably carried as much as possible on the surface, and the weave may Specification of Letters Patent.

Patented J une 2, 1914:.

Serial No. 584,629.

be arranged to produce a twill running in opposite directions ou the two faces; that is, on one side toward the left, and on the opposite side toward the right, thus enabling a lsingle leader to match with cloth twilled in either direction.

lt has been found that the exterior plies of the fabric produced the desired results when the warps thereof are Q/80 mercerized cotton yarn, and the filling 2/4- 0 combed cotton yarn. The mercerized warps thrown upon the surface give the fabric a smooth lustrous effect, which is imparted to the cloth being treated during its treatment in the machine. The exterior plies are in effect similar in weave and appearance each to the fabric known as satcen.

The purpose of the middle ply or plies of the fabric is to soften up the fabric as a whole, and give it the function of a pad or cushion, hence the soft twisted yarn is employed. The inner ply or plies which con stitute an integral part of the fabric in the weave may be formed in different ways. A preferred form is illustrated in the weave dia grammatically shown in the drawing, and consists simply of an additional set of filling, the warps of the exterior plies of the fabric engaging this filling at intervals to complete the middle ply, but it is obvious that the middle ply or plies need not be restricted to a single set of lling nor to making use only of the warps of the exterior plies. The weave of the exterior faces is close and fine, and it has been found that 250 warp threads and 200 picks per inch make a very satisfactory construction, thus leaving some 50,000 tiny intersticcs in each square inch for the penetration of the steam, and insuring the fuller distribution of the same to the cloth being treated.

The fabric being formed entirely of cot ton is of great durability, and can be used over and over again, as required of a leader without materia-l wear. This is an important point because if a leader once becomes imperfect it cannot be mended or repaired, because the surface will thus be rendered imperfect or irregular, and that imperfection or irregularity wouldbe transferred to the cloth being treated. It is essential that the entire surface of the leader should be throughout as nearly perfect as possible, and should retain that condition as long as possible.

It will be seen that the precise weave of lili) the exterior plies of the fabric as a whole can be varied considerably, and the desired results be produced. A preferred form of weave is indicated diagrammatically in the drawings, and has been found inA practice most successful.

In the drawings is shown a diagram of a section of the fabric, the warps being indicated by the numerals l, 2, 3, etc., the Odd numbered warps being the warps for one exterior ply such as the face of the fabric, and the even numbered warps being warps cf the other exterior ply such as the back of the fabric. The filling is indicated by the letters a, c; a representing the filling used in the formation of the face ply, 0 the filling used in the formation of the back ply, and b the filling of the middle ply. Following across weft lines, c, a, Z1, etc., the ms indicate the points at which the filling crosses under or beneath the warp, and the blank spaces the points at which it crosses over or above the warp. The small circles indicate points at which the filling of the middle ply or the middle pick is engaged by the warps of the face ply, and the squares the points at which the middle filling or the middle pick is engaged by the warps of the back ply. For example, beginning at the top of the diagram, the flrst pick marked c which forms with the even numbered warps, the back face or ply of the fabric is shown as extending above the back warps except where it passes beneath those numbered 2 and 12; the second pick a, which together with the odd numbered warps forms the face ply of the fabric, is shown as passing beneath the face warps except where it passes above those numbered l and 1l; and the third pick which forms the middle ply of the fabric, is shown as passing beneath the face or odd numbered warps, and above the back or even numbered warps, excepting where it passes over the face warp l and beneath the back warp 12.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

A woven fabric of the characterl described and for use as a leader, comprising a set of face warps and a set of bach warps, each of comparatively hard twisted yarn, three sets of filling, one woven with the face warps to form the face ply of the fabric, the second with the back warps to form the back ply, and the third passing between the two sets 0f warps and at intervals engaged with a face and a back warp whereby each face of the fabric is rendered smooth and even while the fabric as a Whole is thick and soft.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

IVILLIAM F. SCOTT.

Witnesses:

F. L. POWERS, JADDUS Ln BLANC.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Eatent; Washington, D. C.

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