Elongate mine prop

Details Elongate mine prop Elongate mine prop

E - Fixed Constructions

21

D

61/66

E21D 15/02 (2006.01)

Patent

CA 1216434

A B S T R A C T A mine support comprises a timber pole having longitudinal grooves spaced apart around it, with the groove depth being deepest at one pole end and extending linearly shallower to meet the pole surface short of the other pole end. A relatively thin walled mild steel sleeve is fitted around the pole to cover the grooves.

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