FR1341023A - Support de toit - Google Patents

Support de toit

Info

Publication number
FR1341023A
FR1341023A FR911027A FR911027A FR1341023A FR 1341023 A FR1341023 A FR 1341023A FR 911027 A FR911027 A FR 911027A FR 911027 A FR911027 A FR 911027A FR 1341023 A FR1341023 A FR 1341023A
Authority
FR
France
Prior art keywords
roof support
roof
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
FR911027A
Other languages
English (en)
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
Priority claimed from GB35517/61A external-priority patent/GB966034A/en
Application filed by Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Application granted granted Critical
Publication of FR1341023A publication Critical patent/FR1341023A/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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential 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)
FR911027A 1961-10-02 1962-10-02 Support de toit Expired FR1341023A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB35517/61A GB966034A (en) 1961-10-02 1961-10-02 Advanceable roof support suitable for use in mines
GB3756461 1961-10-19
GB4629661 1961-12-27

Publications (1)

Publication Number Publication Date
FR1341023A true FR1341023A (fr) 1963-10-25

Family

ID=26197775

Family Applications (1)

Application Number Title Priority Date Filing Date
FR911027A Expired FR1341023A (fr) 1961-10-02 1962-10-02 Support de toit

Country Status (1)

Country Link
FR (1) FR1341023A (fr)

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