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FR1164830A - Mobile support for downhole mining operations - Google Patents

Mobile support for downhole mining operations

Info

Publication number
FR1164830A
FR1164830A FR1164830DA FR1164830A FR 1164830 A FR1164830 A FR 1164830A FR 1164830D A FR1164830D A FR 1164830DA FR 1164830 A FR1164830 A FR 1164830A
Authority
FR
France
Prior art keywords
mobile support
mining operations
downhole mining
downhole
operations
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
Other languages
French (fr)
Inventor
Arnold Haarmann
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 filed Critical
Application granted granted Critical
Publication of FR1164830A publication Critical patent/FR1164830A/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)
FR1164830D 1956-01-19 1957-01-18 Mobile support for downhole mining operations Expired FR1164830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1164830X 1956-01-19

Publications (1)

Publication Number Publication Date
FR1164830A true FR1164830A (en) 1958-10-14

Family

ID=7728771

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1164830D Expired FR1164830A (en) 1956-01-19 1957-01-18 Mobile support for downhole mining operations

Country Status (1)

Country Link
FR (1) FR1164830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159003A (en) * 1960-08-31 1964-12-01 Gullick Ltd Roof supports for mines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159003A (en) * 1960-08-31 1964-12-01 Gullick Ltd Roof supports for mines

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