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Chain-link fencing showing the diamond patterning A chain-link fence bordering a residential property. A chain-link fence (also referred to as wire netting, wire-mesh fence, chain-wire fence, cyclone fence, hurricane fence, or diamond-mesh fence) is a type of woven fence usually made from galvanized or linear low-density polyethylene-coated steel wire.
In the 1960s, the Washington State Department of Transportation conducted the very first experiments for evaluating the efficiency of barriers in arresting rock blocks. A so-called 'chain link fence attenuator' was exposed to impacts by blocks freely rolling down a slope for evaluating its efficiency.
In 1930, Mafera filed an application for a "method of forming wire fence fabric", which was approved in 1931. Mafera's brother already owned a chain-link fence company in Medford, Massachusetts, and Mafera's 1931 patent was one of the several advancements made by the Maferas in the development of chain-link fencing.
Chain link fence with barbed wire on top Razor wire is a curved variation of barbed wire. Most barbed wire fences, while sufficient to discourage cattle, are passable by humans who can simply climb over or through the fence by stretching the gaps between the wires using non-barbed sections of the wire as handholds.
Typical agricultural barbed wire fencing Sioux Mems Pro2 Split-rail fencing common in timber-rich areas A chain-link wire fence surrounding a field Portable metal fences around a construction site A snow-covered vaccary fence near Ramsbottom in Greater Manchester, UK Between fence and hedge: Acanthocereus tetragonus, laid out as a "living fence", rural area, Cuba
Woven and mesh wire fencing material has smooth horizontal wires and vertical wires (called stays). Wire spacing and height of fence is dependent on which type of animal is being contained. [9] Agricultural woven wire is identifiable by wire "knots" wrapped around each intersecting wire. Mesh wire material is spot welded at each junction.
The practice of using surveyor's chains, and perch-length rods made into a detachable stiff chain, came about a century later when iron was a more plentiful and common material. A chain is a larger unit of length measuring 66 feet (20.1168 m ), or 22 yards , or 100 links , [ 11 ] or 4 rods (20.1168 meters ).
This is a list of building materials. Many types of building materials are used in the construction industry to create buildings and structures . These categories of materials and products are used by architects and construction project managers to specify the materials and methods used for building projects .
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