US1922269A

US1922269A - Zigzag mesh fabric

Info

Publication number: US1922269A
Application number: US495549A
Authority: US
Inventors: Jr Theodore H Wickwire
Original assignee: WELDED FABRICS CORP
Current assignee: WELDED FABRICS Corp
Priority date: 1930-11-14
Filing date: 1930-11-14
Publication date: 1933-08-15
Anticipated expiration: 1950-08-15

Description

, Patented Aug. 15, 1933 ZIGZAG MESH FABRIC Theodore H. Wickwire, Jr., New York, N. Y., as-

signor to Welded Fabrics Corporation, New York, N. Y., a Corporation of New York Application November 14, 1930 Serial No. 495,549

10 Claims.

My invention relates to an article of manufacture, namely a mesh fabric. For convenience and simplicity of disclosure, it is herein described with special reference to open mesh fabric of wire secured together at wire crossings by welding, and in the form of a continuous strip, but the strands may be of other materials than wire, and the fabric made self-sustaining by the strands thereof having their meeting surfaces secured together in other ways.

My fabric has neither warp nor woor" in the ordinary sense, but is made from a single set of continuous, laterally spaced, parallel strands.

In the case of strip fabric, the individual strands of the set are arranged in-zigzag formation from edge to edge of the strip width with each one spaced ahead of the preceding one, so that the `legs or portions thereof cross to form a diamond mesh pattern, and such strands, if of wire, are preferably secured together at their crossings by welding.

The process of and apparatus for producing wire mesh fabric in accordance with my invention is not claimed herein, being a joint invention of myself and Raymond J. Southwell, and covered by our joint applications, Serial No. 495,598, led November 14, 1930, and Serial No. 649,994, filed Jan. 3, 1933.

The invention will be best understood from the accompanying drawing and the following description of al preferred embodiment thereof.

In the drawing, the single ligure is a fragmentary diagrammatic plan view `of a strip of fabric embodying my invention.

For simplicity of illustration, I have shown a strip of open mesh fabric made up from a set of ten strands, a, b, c, d, e, f, g, h, z', and fi, comprising the zigzag legs al, a2, a3 il, i2, i3, etc., with intermediate edge bends or loops a12, b12, i12, 7'12 along one edge, and loops lo23, b23, 23, 7'23 along the other edge.

The width and spacing is preferably such that the edge loops are evenly spaced along each edge of the strip, as by spacing the leg a3 the same distance ahead of leg j 1 that there is between legs of the same fold or lay as al, b1, c1, etc.

When the fabric is formed, as is preferable, by recurrently laying or folding inwardly the wires of the set from and to the two respective edges of the strip width, with a part of each lay or fold overlapping a part of the preceding lay or fold, a recurrent pattern is obtained in which the leading wire of the set, as wire a', is always on the under face of the fabric (when laidjat), whereas the rearmost or following wire of the set, as wire a,

passes recurrently back and forth across the fabric on the upper side thereof, and the intermediate wires i, h, g, etc., are disposed with parts of progressively decreasing length on the under face, and parts of progressively increasing length on 30 the upper face respectively, as indicated by dotted and full lines in the drawing. In this way each of the successive groups of strand portions extends angularly with respect to the preceding group and overlies same throughout substantially half the group area.

Fabric in accordance with my invention may be made use of in the form shown with spacedapart loops forming a selvage on each edge, or additional selvage wires may be welded thereto if desired, or the wire strip may be made of greater width and cut into narrower strips along one or more longitudinal lines so as to have either one looped and one cut edge, or both edges may be cut and free of loops, as for example, this will be the case with the middle strip, if the original strip is cut longitudinally along two lines into three parts or strips, or cross cuts can be made if desired. By increasing the width of the fabric, the diamond-shaped interstices may S0 be lengthened crosswise of the fabric strip, or varied in size and proportions in other ways. The Width of the set of strands is preferably at least as great as the width of the sheet of fabric, and by having the width of the set of strands substantially twice the sheet width, as shown in the drawing, square mesh fabric, as shown, can be produced.

The uses for my fabric are practically unlimited. When used in place of the customary hexagonal twisted mesh for wire glass reinforcement and other purposes, there is a considerable saving in the amount of wire necessary to obtain the same size mesh with the same gage of wire, and a much more regular and evenly formed and firmer mesh can be made than with wire twisted together.

I claim:

1. As a new article of manufacture, zigzag, unwoven, diamond-mesh sheet fabric consisting of a set of continuous laterally spaced strands recurrently laid or folded inwardly from the sheet edges, with each-succeeding lay or fold on the same face of, and overlapping substantially half the area of, the preceding lay or fold, and made Solft-sustaining by the strands having the meeting surfaces thereof directly secured together at points of crossing. l

2. Fabric in accordance with claim 1, and in 119 which the width of the set of strands is at least as great as the sheet width.

3. Fabric in accordance with claim 1, and in which the width of the set of strands is substantially twice the sheet width, and the mesh is substantially square.

4. Fabric in accordance with claim 1, and in which the bends of the strands between the lays or folds are in substantially straight lines at the edges of the sheet.

5. Fabric in accordance with claim l, and in which the sheet width is substantially half the width of the set of strands and the mesh is substantially square and the bends in the strands between the lays or folds are in substantially straight lines at the edges of the sheet.

6. As a new article of manufacture, zigzag, un- Woven, diamond-mesh sheet fabric, consisting of a set of continuous laterally spaced metallic strands recurrently laid or folded inwardly from the sheet edges, with each succeeding lay or fold on the same face of, and overlapping substantial- 1 8. Fabric in accordance with claim 6, and in` which the width of the set of strands is substantially twice the sheet width, and the mesh is substantially square.

9. Fabric in accordance with claim 6, and in which the bends of the strands between the lays or folds are in substantially straight lines at the edges of the sheet.

10. Fabric in accordance with claim 6, and in which the sheet width is substantially half the width of the set of strands and the mesh is substantially square, and the bends in the strands between the lays or folds are in substantially straight lines at the edges of the sheet.

THEODORE H. WICKWIRE, JR.