Mine roof support control
AssigneeGullick Dobson Limited
InventorsFred Small, Kenneth Darbyshire
Life of this patent
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Abstract
A mine roof support control monitoring system in which at least some of a row of self advancing mine-roof supports at a mine face each include means for providing data relating to successive advances of that support. This data is accumulated by other means of the system and stored to give readily available indicationsof differences of actual support advances. The system preferably further includes means for pre-energizing the advance mechanisms of such supports to eliminate data relating to slack or tolerance.
Claims14
A system for monitoring the relative positions of a row of mine roof supports, comprising, for each of at least some of the supports, means for providing data relating to successive actual advances of each support and anchorage therefor, the system further comprising means for accumulating and storing such data for said at least some supports, and means for displaying the accumulated and stored data as an offset from a nominal or expected advance.
Dependencies are inferred from the claim text.