Mine roof truss with bent angle bolts

Details Mine roof truss with bent angle bolts Mine roof truss with bent angle bolts

E - Fixed Constructions

21

D

E21D 23/00 (2006.01) E21D 20/02 (2006.01) E21D 21/00 (2006.01)

Patent

CA 2313933

The present invention is a mine roof truss support system including a pair of bent angle bolts, a pair of splice tubes each individually connected to a corresponding bent angle bolt, a cable connected to each splice tube, and a pair of barrel and wedge assemblies, each individually connected to a corresponding opposite end of the cable, so that when the ends of the cable are pulled in one direction and the barrel and wedge assemblies are moved in an opposite direction, the mine roof truss support system is tensioned.

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