![]() ![]() In addition, the points of the barbs must be strong enough to resist bending and sharp enough to cause discomfort. The use of two wires, reverse twisted, adds strength and keeps the barb spacing intact to avoid slippage and gaps. The steel should be high quality so that the wires maintain uniform tension and consistently react to changing weather conditions, preventing sagging or failure. ![]() Farmers and ranchers need reliable, heavy-duty wire that won’t break under pressure. In the end, the successful, enduring styles share common features. And still others just didn’t have the experience to manufacture or market their products. Start-ups were expensive, so lack of capital prevented inventors from succeeding. Some styles proved too difficult to produce. Some were designed to be safer, which took away from its intended effectiveness. Of course, not all styles took hold and became popular with the public. Since 1867, hundreds of patents have been awarded for different styles of barb, or bob, wire.
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