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A towing sock or wire rope puller or wire pulling grip is a device that connects to the end of a cable, such as a power cable, in order to pull it through a tube or tunnel. [1] It works by tightening around the cable when pulled, in the same manner as a Chinese finger trap . [ 2 ]
A machine is set in the receiving pit to pull the expander head and new pipe into the line. The head is pulled by heavy, interlocking links that form a chain. Each link weighs several hundred pounds. All of the equipment used in a pipe bursting operation is powered by one or multiple hydraulic power generators.
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The 7:15 p.m. incident, in which a Jeep rolled onto its side after striking three spectators, happened during the 28th Scheid Diesel Extravaganza truck pull and drag racing event.
In response to industry demand, CSA has developed Part IV of the Canadian Electrical Code, consisting of two standards CSA C22.4 No. 1 "Objective-based industrial electrical code" and CSA C22.4 No. 2 "Objective-based industrial electrical code - Safety management system requirements".
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At least two people have died as severe storms and tornadoes tore through parts of Texas and Mississippi on Saturday, officials said, while a parade of atmospheric river-fueled storms batters the ...
In 1895 he patented a device (Patent no. 9396, dated 13 May 1895) for the safe removal of pit props from tunnels in mines. During longwall mining, wooden pit props were recovered for re-use as the coal face moved forward; this was done by knocking them out with a hammer, which was a hazardous operation. Using Sylvester's device, the prop could ...