Abstract

Fences can be defined as arrangement that provides an obstruction, enclosure, or a boundary, made up of posts or stakes linked together by boards, wire, or rails. The chains run vertically and are bent into a zigzag pattern so that each “zig” hooks with the wire immediately on one side and each “zag” with the wire immediately on the other.

The manufacturing of chain-link fencing/meshing is called weaving. A metal wire, frequently galvanized to reduce corrosion, is pulled along a rotating long and flat blade, thus making a somewhat flattened spiral. The spiral continuously rotate passing the blade and winds its way through the previous spiral that is part of the produced fence. When the spiral reaches the distant end of the fence, the spiral is cut near the blade. Then the spiral is pressed flat and the whole fence is moved up, ready for the next cycle.

The end of each second spiral joins the end of each first spiral. The machine clamps both ends and gives them a few twists. This makes the links permanent.

Brief History of Chain Link Machine and Fences

In 1884, a British man named Charles Bernard had an idea to create section of fencing using a cloth weaving machine. He switched out the threads for some steel wire, and a new industry was born. With his innovation, long stretches of fencing/meshing could be produced quickly and easily, and soon, metal fencing became popular throughout England.

It didn’t make it into the United States’ manufacturing community until almost 50 years after its invention. In 1891, a New Jersey factory known as the Anchor Post Fence Co bought the right to the weaving machine, becoming the first company to manufacture chain link fences in the United States. It caught fairly quickly, because it’s affordable, durable, lightweight, easy to install, and versatile enough use in host of applications

Chain link really arose to prominence in London during the World War II. At all point, many iron and steel fences that had surrounded parks were taken down and used for scrap materials.

Today, chain link machine is still immensely popular and in fact, half of the fences sold in the United States are made chain link machines.

CHAPTER ONE

GENERAL INTRODUCTION

A fence is an arrangement that encircles a space, typically exterior, and is usually created from posts that are connected by panels, wire, railings or mesh. A fence varies from a wall is not having a rock solid foundation along its entire span. A chain-link fence usually made from galvanized steel wire.

The manufacturing of chain-link fencing is called weaving. A metal wire frequently galvanized to reduce corrosion, is pulled along a rotating long and flat blade, thus making a somewhat flattened spiral. The spiral continuously rotate passing the blade and winds it through the previous spiral that is part of the produced fence.

When the spiral reaches the distant end of the fence, the spiral is cut near the blade. Then the spiral is pressed flat and the whole fence/mesh is moved up and ready for the next cycle. The end of each second spiral joins the end of each first spiral. The machine clamps both ends and gives them a few twists. This makes the links permanent.

An enhanced version of the weaving machine winds two wires around the blade at once, thus creating a double helix. One of the spirals is woven through the last spiral that is part of the already produced fence. This progress allows the process to advance twice as fast.

Fence can be defined as structures serving as an enclosure, a barrier, or a boundary, usually made of posts or stakes joined together by boards, wire, or rails. In contrast, a “virtual fence” can also serve as an enclosure, a barrier, or a boundary, but that relies on other than physical objects on the landscape to alter an animals’ behavior. The concept of virtual fencing occurs increasingly in discussions of those whose job it is to manage Free-ranging animals; this includes stockpersons, scientists and nature conservationists. Therefore, a patent and literature search was conducted to investigate the topic of virtual fencing.

The term virtual fence seems to be used in a very broad sense and different concepts of its application exist. However, they all have in common the fact that the system uses no physical barrier on the landscape. Therefore, a virtual fence can be defined as a structure serving as an enclosure, a barrier, or a boundary without a physical barrier.

Knotted wire fences are used throughout the world for retention of livestock. Other types of wire fencing include single strands, diamond (chain link), welded mesh and hexagonal mesh (chicken mesh). However the subject of the present paper is only rectangular knotted mesh, with a particular emphasis on the production thereof.

As an agricultural product, the primary body of knowledge on fencing has historically resided in national standards, e.g. with a particular focus on the geometric parameters of the fence and the coatings. The corrosion resistance of wire fences in exposed environments has been of interest for many years and still continues to be an area of research as material science has made newer coatings available.

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