Collapsible elongate mine support

Details Collapsible elongate mine support Collapsible elongate mine support

E - Fixed Constructions

21

D

61/66

E21D 15/50 (2006.01) E21D 15/02 (2006.01) E21D 15/14 (2006.01)

Patent

CA 1218534

A B S T R A C T A mine support comprises a length of timber pole with wood removed to form longitudinally extending and tapering planar strips spaced circumferentially around it. The adjacent edges of the planar surfaces do not need to undercut the pole circumference, and a reinforcing sleeve is fitted over the pole against the pole surface around and between the planar surfaces.

457371

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