FR1177681A - Support frame, usable in particular in mines - Google Patents

Support frame, usable in particular in mines

Info

Publication number
FR1177681A
FR1177681A FR1177681DA FR1177681A FR 1177681 A FR1177681 A FR 1177681A FR 1177681D A FR1177681D A FR 1177681DA FR 1177681 A FR1177681 A FR 1177681A
Authority
FR
France
Prior art keywords
mines
usable
support frame
frame
support
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
Franz Schmid
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 FR1177681A publication Critical patent/FR1177681A/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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

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)
FR1177681D 1956-07-03 1957-07-02 Support frame, usable in particular in mines Expired FR1177681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1177681X 1956-07-03

Publications (1)

Publication Number Publication Date
FR1177681A true FR1177681A (en) 1959-04-28

Family

ID=7729916

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1177681D Expired FR1177681A (en) 1956-07-03 1957-07-02 Support frame, usable in particular in mines

Country Status (1)

Country Link
FR (1) FR1177681A (en)

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