BE511962A - - Google Patents

Info

Publication number

BE511962A

BE511962A BE511962DA BE511962A BE 511962 A BE511962 A BE 511962A BE 511962D A BE511962D A BE 511962DA BE 511962 A BE511962 A BE 511962A

Authority

BE

Belgium

Prior art keywords

wedge

clamping

mine prop

mine

friction

Prior art date

Links

• Espacenet
• Global Dossier
• Discuss

• 239000002184 metal Substances 0.000 claims description 4
• 230000003068 static effect Effects 0.000 claims description 3
• 229910000831 Steel Inorganic materials 0.000 claims description 2
• 230000002093 peripheral effect Effects 0.000 claims description 2
• 239000010959 steel Substances 0.000 claims description 2
• 238000000605 extraction Methods 0.000 description 4
• 238000005065 mining Methods 0.000 description 4
• 238000000034 method Methods 0.000 description 3
• 238000005452 bending Methods 0.000 description 2
• 239000003245 coal Substances 0.000 description 2
• 230000002787 reinforcement Effects 0.000 description 2
• 101100521345 Mus musculus Prop1 gene Proteins 0.000 description 1
• 108700017836 Prophet of Pit-1 Proteins 0.000 description 1
• 150000001875 compounds Chemical class 0.000 description 1
• 230000002349 favourable effect Effects 0.000 description 1
• 230000001788 irregular Effects 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• 230000002028 premature Effects 0.000 description 1
• 238000003825 pressing Methods 0.000 description 1
• 238000005096 rolling process Methods 0.000 description 1