Mine roof support system

E - Fixed Constructions – 21 – D

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E21D 23/08 (2006.01) E21D 23/00 (2006.01) E21D 23/04 (2006.01)

Patent

CA 1116423

PREAMBLE TO DISCLOSURE Be it known that LEWIS ROBERT BARNES BOWER of 1, Elmfield Drive, Skelmanthorpe, Huddersfield, W. Yorkshiro, England, having made an invention entitled:- "MINE ROOF SUPPORT SYSTEM" the following disclosure contains a correct and full description of the invention and of the best mode known to the Inventor of taking advantage of the same. Abstract of the Disclosure A mine roof support system comprises a plurality of hydraulically powered, self-advancing roof supports located along one side of an armoured conveyor, a double-acting advancing ram connected between a base means of each support and the conveyor, and a double-acting advancing ram extending generally in the intended direction of advance of the support and connected between a rearward end of a roof beam of each support and a forward end of a roof beam of an adjacent support.

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