Method and apparatus for supporting the roof of an...

Details Method and apparatus for supporting the roof of an... Method and apparatus for supporting the roof of an...

E - Fixed Constructions

21

D

61/67

E21D 11/12 (2006.01)

Patent

CA 1041779

A B S T R A C T The roof of an underground mine working in a region newly exposed by the passage of a mining machine along an upright face of the working is supported by leading off a flexible mat from a stored supply thereof and applying the mat to the roof by directing means so that the mat extends along the newly exposed roof. The vertical disposition of the directing means is controlled in accordance with the vertical disposition of a cutting element of the mining machine. The stored supply of mat occupies a region which is already supported by roof supports, the mat being drawn from the stored supply in a first direction and then re-directed to extend along the newly exposed roof. An operative connection between the directing means and the cutting element is established by a parallelogram arrangement of pivotally inter- connected members.

298973

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