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FR1386982A - Perfectionnements aux supports de toit pour galeries de mines - Google Patents

Perfectionnements aux supports de toit pour galeries de mines

Info

Publication number
FR1386982A
FR1386982A FR969763A FR969763A FR1386982A FR 1386982 A FR1386982 A FR 1386982A FR 969763 A FR969763 A FR 969763A FR 969763 A FR969763 A FR 969763A FR 1386982 A FR1386982 A FR 1386982A
Authority
FR
France
Prior art keywords
roof supports
mine galleries
galleries
mine
roof
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
FR969763A
Other languages
English (en)
Inventor
Thomas Desmond Hudson Andrews
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment Ltd
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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to FR969763A priority Critical patent/FR1386982A/fr
Application granted granted Critical
Publication of FR1386982A publication Critical patent/FR1386982A/fr
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
    • E21D23/0082—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor specially adapted for vertical or steep gradient seams
    • 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0013—Frame type supports
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
FR969763A 1964-04-03 1964-04-03 Perfectionnements aux supports de toit pour galeries de mines Expired FR1386982A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR969763A FR1386982A (fr) 1964-04-03 1964-04-03 Perfectionnements aux supports de toit pour galeries de mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR969763A FR1386982A (fr) 1964-04-03 1964-04-03 Perfectionnements aux supports de toit pour galeries de mines

Publications (1)

Publication Number Publication Date
FR1386982A true FR1386982A (fr) 1965-01-22

Family

ID=8827041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR969763A Expired FR1386982A (fr) 1964-04-03 1964-04-03 Perfectionnements aux supports de toit pour galeries de mines

Country Status (1)

Country Link
FR (1) FR1386982A (fr)

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