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Concertina wire or Dannert wire [1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape ) and steel pickets , it is most often used to form military-style wire obstacles .
Barbed wire for agriculture use is typically double-strand 12 + 1 ⁄ 2-gauge, zinc-coated (galvanized) steel and comes in rolls of 400 m (1,320 ft) length. Barbed wire is usually placed on the inner (pasture) side of the posts. Where a fence runs between two pastures livestock could be with the wire on the outside or on both sides of the fence.
In 2021, the company was split into a British and a Dutch branch: Tata Steel Netherlands (TSN) and Tata Steel UK, both of which fell directly under the Indian parent company Tata Steel. [ 1 ] Corus Group was formed through the merger of the Koninklijke Hoogovens and British Steel plc in 1999 and was a constituent of the FTSE 100 Index .
The barbed wire was arranged in a cat’s cradle formation that for every 12 yards of barbed fence built, 420 yards of barbed wire was strung (or 35 yards of wire per yard of fence). [1] Later versions of this type of barbed wire were manufactured by Germany during the First World War. The reason for this was a wartime shortage of wire to make ...
Anvil was the ambitious attempt to eliminate Mau Mau's presence within Nairobi in one fell swoop. 25,000 members of British security forces under the control of General George Erskine were deployed as Nairobi was sealed off and underwent a sector-by-sector purge. All native Kenyans were taken to temporary barbed-wire enclosures.
The Wire that Fenced the West is a book written by Henry D. and Frances T. McCallum and published in 1965 by the University of Oklahoma Press. The book covers the history of the development of barbed wire and the inventors. It also include chapters of how it was marketed and the history of its use in the American West. It includes an ...
On 23 July 2009, the 17,000 kilometres (11,000 mi) cable began operations, providing the eastern and southern African countries of Djibouti, Kenya, Tanzania, Mozambique, and South Africa with high-speed Internet connectivity to Europe and Asia.
The Barbed Wire Patent Case, 143 U.S. 275 was a significant patent dispute in 1892 between plaintiff Joseph Glidden and the USPTO regarding the right of barbed wire. Lucian Smith was the original inventor in 1867 and held patent rights for it, while Glidden made changes to the production of barbed wire, holding the barbs in place, in 1874 that ...