E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
E21D 23/00 (2006.01) E21D 11/00 (2006.01) E21D 17/00 (2006.01)
Patent
CA 2253077
A cable truss support system for supporting the roof of a mine includes two cables each having an end secured in the roof of a mine. The other ends of the cables are connected by a twisted ring anchor and are secured to the anchor by wedges through which the cables pass.
Dyckerhoff & Widmann Ag
Smart & Biggar
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