Crane extension frame for a machine system for extracting minerals deposited as seam, in particular coal
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Machine system for extracting mineral materials deposited as seam, in particular coal
DE4306783C1
Gallery consolidation in mining operations - involves steel plate segments running in longitudinal and peripheral directions of gallery and connected to peripheral profiles
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Route expansion, especially for mining underground operations
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Machine for loosening and conveying coal from seam - has basic profiled component so formed that it is securely latched when pulled around by endless chain
GB9109514D0
Mineral winning installation
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Mine roadway support
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ROAD EXTENSION, ESPECIALLY FOR MINING UNDERGROUND COMPANIES
GB9000431D0
Underground gallery support
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A method for safeguarding the face cutting length in underground mine workings and a roadway support arch adapted for the method
DE3900431A1
Route expansion, especially for mining underground operations
