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The effectiveness of any wire obstacle is greatly increased by planting anti-tank and blast antipersonnel mines in and around it. Additionally, connecting bounding anti-personnel mines (e.g. the PROM-1) to the obstacle with tripwires has the effect of booby-trapping the obstacle itself, hindering attempts to clear it.
Barbed wire fence in line brace. The most important and most time-consuming part of a barbed wire fence is constructing the corner post and the bracing assembly. A barbed wire fence is under tremendous tension, often up to half a ton, and so the corner post's sole function is to resist the tension of the fence spans connected to it. The bracing ...
Barbed wire picket. Screw pickets (used as supports for barbed wire defences) were introduced c. 1915 as a replacement for timber posts. Crown Iron Works Co. (Minneapolis, MN) made over 10 million of these screw post pickets for WW1, WW2 and the Cuban Missile Crisis. The French name for this type of "steel stake" was "queue de cochon" or pigtail.
I. Barbed-Wire Fence-Makers 1. Threshold of Promise 2. Prelude to 1874 3. Incident at De Kalb 4. "Prior-Use" Fences 5. Promoting Barbed Wire 6. Moonshine and Monopoly 7. Patent Litigation 8. Barbed-Wire Barons. II. Barbed-Wire Fence-Builders 9. "This Cockeyed World of Cattle Fold" 10. "The Big Die-up" 11. "King of the Coasters" and Brother Jon 12.
Patent drawing for Joseph F. Glidden's Improvement to barbed wire. Glidden began work on ways to make a useful barbed wire to fence cattle in 1873. He made his best design of barbed wire by using a coffee mill to create the barbs. Glidden placed the barbs along a wire and then twisted another wire around it to keep the barbs in place, in a ...
Barbed wire was a farmer's product at first, but cattlemen eventually adopted it to fence off their larger tracts of land. [3] Barbed wire became an important factor in changing the cattle industry, as the free, open range became parceled off by barbed wire. Because of this development, the West saw the rise of big-pasture companies.