PL63724B1 - - Google Patents

Info

Publication number

PL63724B1

PL63724B1 PL136884A PL13688469A PL63724B1 PL 63724 B1 PL63724 B1 PL 63724B1 PL 136884 A PL136884 A PL 136884A PL 13688469 A PL13688469 A PL 13688469A PL 63724 B1 PL63724 B1 PL 63724B1

Authority

PL

Poland

Prior art keywords

beams

sleepers

spag

anchoring device

sliding

Prior art date

1969-11-13

Links

• Espacenet
• Global Dossier
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• 238000004873 anchoring Methods 0.000 claims description 8
• 230000000712 assembly Effects 0.000 claims 1
• 238000000429 assembly Methods 0.000 claims 1
• 230000008878 coupling Effects 0.000 claims 1
• 238000010168 coupling process Methods 0.000 claims 1
• 238000005859 coupling reaction Methods 0.000 claims 1
• 238000006073 displacement reaction Methods 0.000 claims 1
• 238000000034 method Methods 0.000 claims 1
• 230000000284 resting effect Effects 0.000 claims 1
• 238000005065 mining Methods 0.000 description 5
• 238000009412 basement excavation Methods 0.000 description 4
• AZZMGZXNTDTSME-JUZDKLSSSA-M cefotaxime sodium Chemical compound [Na+].N([C@@H]1C(N2C(=C(COC(C)=O)CS[C@@H]21)C([O-])=O)=O)C(=O)\C(=N/OC)C1=CSC(N)=N1 AZZMGZXNTDTSME-JUZDKLSSSA-M 0.000 description 1
• 239000003245 coal Substances 0.000 description 1
• 238000010276 construction Methods 0.000 description 1
• 238000003780 insertion Methods 0.000 description 1
• 230000037431 insertion Effects 0.000 description 1
• 238000012423 maintenance Methods 0.000 description 1