AU5549173A - Improvements in mine roof support assemblies - Google Patents

Improvements in mine roof support assemblies

Info

Publication number
AU5549173A
AU5549173A AU55491/73A AU5549173A AU5549173A AU 5549173 A AU5549173 A AU 5549173A AU 55491/73 A AU55491/73 A AU 55491/73A AU 5549173 A AU5549173 A AU 5549173A AU 5549173 A AU5549173 A AU 5549173A
Authority
AU
Australia
Prior art keywords
roof support
support assemblies
mine roof
mine
assemblies
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU55491/73A
Other versions
AU488093B2 (en
Inventor
HUMBERT BECKER JOSEPH KUN HARRY ROSENBERG and HAJA DIETER WIEBLTTZ FRANZ DENIKER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Application granted granted Critical
Publication of AU5549173A publication Critical patent/AU5549173A/en
Publication of AU488093B2 publication Critical patent/AU488093B2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
AU55491/73A 1972-05-10 1973-05-09 Improvements in mine roof support assemblies Expired AU488093B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE822228 1972-05-10
DE19722222801 DE2222801A1 (en) 1972-05-10 1972-05-10 PROGRESSIVE EXPANSION FOR EXTRACTION PLANTS AND PROCESSES FOR THE DISMANTLING OF STORAGE FACILITIES, IN PARTICULAR IN BRIEF WITH EXTRACTING MACHINE IN FRONT OF THE HEAD

Publications (2)

Publication Number Publication Date
AU5549173A true AU5549173A (en) 1974-11-14
AU488093B2 AU488093B2 (en) 1974-11-14

Family

ID=

Also Published As

Publication number Publication date
US3851480A (en) 1974-12-03
DE2222801A1 (en) 1973-11-22
GB1420996A (en) 1976-01-14

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