Mine roof supports

Details Mine roof supports Mine roof supports

E - Fixed Constructions

21

D

61/67

E21D 15/55 (2006.01) E21D 23/06 (2006.01)

Patent

CA 1042675

ABSTRACT OF THE DISCLOSURE A roof-engaging assembly for a mine roof support having prop or jack means to engage and support the roof-engaging assembly, comprises a rigid part to engage said prop or jack means, and a roof-engaging part position- ed over and resiliently urged away from the rigid part. Preferably the rigid part has a roof-engaging face and a relatively stepped or recessed face below the roof-engaging face, the roof-engaging part being positioned over and resiliently urged away from the stepped or recessed face and towards positions above the roof-engaging face of the rigid part.

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