US1760447A - Wire fabric - Google Patents

Description

May 27, 1930. w. H. SOMMER 1,760,447

WIRE FABRIC Filed Nov. 15, 1928 ZSheecs-S'leet 1 'INVEIETEJE.

May 27, 1930. w. H. SOMMER 1,760,447

WIRE FABRIC Filed Nov. 15, 1928 2 Sheets-Sheet 2 Patented May 27, 1930 mam WILLIAM H. SUMMER, PEQRIQTLLINOIS l WIRE FABRIC Application filed November 15, 1928. Serial No. 319,605.

This invention has reference to wire fabrics, and while the fabric to which reference ismade is designed particularly fornse as fish-trap structure, it may be found,,due to 5 its structural characteristics,'to have other and various uses.

The invention has for its principal object to improve wire fabrics, particularly in the mode or manner ofattaching the stay wires,

, 10 which are arranged crosswise to longitudinal strand or line wires, to the selvage or marginal wires arranged parallel to the longitudinal strand or line wires. The improvement, therefore, is inproviding selvage or marginal wires for the fabric, consisting of two adjacently placed wires, each preferably of the same gage or cross-sectional area as the longitudinal strand or line wires and the stay wires, and coiling or wrapping the ends of the stay wires around the two adjace'ntly placed wires which constitute themarginal r or selvage wires of the fabric. Such a structure provides a wrap of the ends of stay wires around the marginal or selvage wires of oval shape incontradistinction to circular or round wraps which have been common in such fabricswhere the ends of the stay wires have been wrapped around preferably single marginal or selvage strands of a, gage or cross-sectional area larger than that of the longitudinal strand or line wires and the stay wires. The fact that the wraps of the ends of the stay wires around two adjacently I placed wires, forming the marginal or selvage strands, are oval-shape increases materially the resistance to unwrapping; in fact, the use of such wraps has demonstrated that the stay wires are breakable before the wraps will come loose. An advantage which is obtained in the use of the adj acently placed two wires forming the marginal or selvage wires, and which are of the same gage or cross-sectional area as the other wires of the fabric, is in the greater flexibility obtained by the use of the two-wire selvages, than is the case where a single large. strand or wire is used, due to the fact that the two-wire selvages have a lower resistance tobending, and it is much easier to straightenout and lay the fabric at th t prev ously h een ro11e ,t anis the case where thereis employedinthe fabric single marginal or selvage strands where such strands are larger in diameter than the other wires. Furthermore, there is obtained by the use of the two-strand margin or selvage, which are equivalent insectional area to a single strand of wire, greater flexibility in such strands than there is with the useof such single strands, and without the sacrifice of the tensile strength of such strands, as the equivalent-of tensile strength is present in said two-strand selvages.

The invention has for a further object to provide half or complete twists of the adjacently placed two wires forming themargi- .nal or selvage wires of the fabric between the respective stay wires, to equidistantly place the same, the ends of which are wrapped by ovalwraps around the two-strand marginal or selvages.

In the use of Wire fabrics for fish-trap structures, particularly in the salmon industries, these fabrics are supported in lengths, either with the lengths of the fabrics disposed vertically in the water, with the lengths connected to each other, or in horizontal positions in the water with lengths of fabrics superimposed one abovethe other and suitably ,connected to each other and sustained by 'pilings or other, suitable means and weighted in a manner to keep the fabric taut. In the use of single-strand marginal or selvage wires, objection has been found in the ends of the stay wires becoming unwrapped or uncoiled therefrom as a result of stresses or strains ,put upon the fabric, due to pressures from extraneous substances in the Water coming in contact therewith. which results in the destroyingand tearing,

away of the stay wires from the fabric. I

have found that by providing oval wraps or oval-shaped coils of the endsof the stay wires about two adj acently placed wires, forming the marginal or selvage wires of the fabric,

that there is required a very much greater pull on the stay wires to pull themloose from the two-wire selvages.

That the invention may be more fully understood, reference is had to the accompany ing drawings forming a part of this description, illustrating a preferred embodiment of the invention, in which Fig. 1 is an elevation'showing in a diagrammatic way, sections of my improved fabric, disposed in vertical positions in the water and with the selvages of the adjacently placed sections suitably connected together;

Fig. 2 is a view similar to Fig. 1 except that the sections of the fabric are disposed horizontally in the water, in superimposed relation to each other, and the selvages of the adjacent sections suitably connected;

Fig. 3 is an enlarged detailed View of portions of two separate sections of fabric suitably connected, each section havin selvage or marginal wires composed of two adj acently placed wires and with the ends of the stays wrapped by oval wraps or coils thereabout;

Fig. 4 is an edge view of Fig. 8;

Fig. 5 is a view similar to Fig. 3 except that the two adjacently placed wires comprising the selvage or marginal wires show half or complete twists between the stays, which places I the stays equidistantly from each other;

Fig. 6 is an edge View of Fig. 5;

F i 7 is an enlarged detail in section showing the two adjacently placed wires forming the selvage or margin and with the ends of a stay wire coiled or wrapped thereabout, 1n the form of an'oval wrap or coil; and

Fig. 8 is an enlarged detail in section showing the manner of connecting marginal or selvage wires of two sections of fabric, by preferably hog-rings. I

Like characters of reference denote corres onding parts throughoutthe figures.

n the drawings, reference being had particularly to Figs. 1 and 2, sections of fabric embodying my invention are shown, each designated A.

These sections are placed in relation to each other in a manner in which they might he used when employed as fish-trap structure and supported and associated in connection with pilings B. In Fig. 1 the sectlons A 7 comprising the fabric are arranged or disposed in vertical position in the water and the marginal or selvage wires of the said sections are connected with each other by preferably hog-rings C, and the sections 'of fabric constituting the structure are supportd or suspended from a stringer D, also by means of hog-rings C, and the stringer connected to the pilings B. \Veights, not shown, may be employed suspended from the lower portions of the sections of the fabric to hold the same taut. In Fig. 2 the sections A of the fabric 7 are supported in what may be termed a horizontal position, that is,with the stay wires extended vertically; whereas in Fig.- 1 the stay wires are positionedhorizontally, and the said sections A are arranged in superimposed position one above the other and the selvages of the sections connected by the hogrings C and the structure suspended from a stringer D by means of the hog-rings G, and the stringer D being connected with the pilings. No limitation is placed on the manner and form in which the sections of the wire fabric may be arranged with respect to each other, as is evidenced by the disclosures in Figs. 1 and 2.

I have shown the fabric composed of preferably longitudinally disposed selvage or marginal wires 1, the intermediate longitudinal line wires 2 spaced from each other and from the marginal or selvage wires, and the stay wires 8 connected at their intersections with the line wires 2 by means of staple ties 4, and the ends of the stay wires wrapped or coiled about the marginal or selvage wires 1 by means of a series of wraps or coils 5 thereabout. The stay wires are suitably spaced from each other, as is the ease with the line or marginal and selvage wires, but as to the character or extent of such spacings between each of these several wires, I am not concerned, as the meshes formed by these wires may be of any size or character as may be desired and most useful for the purposes for which the fabric is intended.

The marginal or selvage Wires 1, as provided in the structure best seen in Figs. 3 and 4-, comprise two adjacently placed wires, preferably one above the other or in superimposed relation, and each preferably of a gage or cross-sectional area as the stay wires and intermediate line wires constituting the fabric and by reason of such construction of the marginal or selvage wires and the arrangement of the individual wires forming the same the wraps or coils of the ends of the stay wires thereabout are in the form of an oval wrap or coil, the greatest length of which is in the plane of the length of the stays as is best seen in Figs. 4, 6 and 7.

This oval wrap or coil, as has been previously stated, increases materially the resistance to unwrapping of the ends of the stay wires about the marginal or selvage wires, when any unusual strain or stress is applied to the stay wires. Furthermore, as has been previously stated, there is an advantage in such a structure, due to the greater flexibility obtained by the use of the two-wire selvage strandover the same sectional area of a single larger selvage strand, especially when it is desired to straighten out and lay a fabric flatthat has been prey iouslv rolled, as it is considerably easier to straighten out and lay such a fabric embodying the two-wire selvage strand comprising wires'of the same gage or cross-sectional area as the other wires in that such two-selvage strand wires have a lower resistance to bending than a single larger selvage strand would have.

In Fig. 5 I show a fabric having the same general characteristics as that shown in Fig.

3, with the exception that the two-wire selvage strands have half or complete twists as may be the case, between the spaced stay Wires, which gives a positive spacing and results intheir equidistant location from each other. However, at the point of the application of the oval wraps of the ends of the stay Wires about such marginal or selvage wires the two adj acently placed wires forming the marginal or selvage Wires are preferably in superimposed or overlying relation with respect to each other, whereby the oval shape or coil of the wraps are in the plane of the length of the stay wires, requiring very much greater pull on the stay wires to pull them loose from such. two-wire selvage than would he the case where the stay wires are wrapped by a round coil on a single-wire selvage.

What I claim is 1-- A Wire fabric including longitudinal marginal and intermediate line Wires and crossconnected stay Wires, the marginal wires comprising a pair of Wires disposed in contacting relation throughout their length, said wires being disposed in a substantially vertical plane and the ends of the stay wires connected to said marginal wires by a series of oval coils tightly disposed exteriorly around said marginal wires, the greatest length of the oval coils being in the plane of the length of the stay wires, and said coils being com pletely filled by said marginal wires, whereby to preventshil'ting of the marginal wires relative to each other.

WILLIAM H. SOMMER.

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