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FR1302724A - Roof support for mines - Google Patents

Roof support for mines

Info

Publication number
FR1302724A
FR1302724A FR874846A FR874846A FR1302724A FR 1302724 A FR1302724 A FR 1302724A FR 874846 A FR874846 A FR 874846A FR 874846 A FR874846 A FR 874846A FR 1302724 A FR1302724 A FR 1302724A
Authority
FR
France
Prior art keywords
mines
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
FR874846A
Other languages
French (fr)
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.)
N J Muschamp & Co Ltd
Original Assignee
N J Muschamp & Co 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 N J Muschamp & Co Ltd filed Critical N J Muschamp & Co Ltd
Priority to FR874846A priority Critical patent/FR1302724A/en
Application granted granted Critical
Publication of FR1302724A publication Critical patent/FR1302724A/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)
FR874846A 1961-10-03 1961-10-03 Roof support for mines Expired FR1302724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR874846A FR1302724A (en) 1961-10-03 1961-10-03 Roof support for mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR874846A FR1302724A (en) 1961-10-03 1961-10-03 Roof support for mines

Publications (1)

Publication Number Publication Date
FR1302724A true FR1302724A (en) 1962-08-31

Family

ID=8763973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874846A Expired FR1302724A (en) 1961-10-03 1961-10-03 Roof support for mines

Country Status (1)

Country Link
FR (1) FR1302724A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277790B (en) * 1965-09-10 1968-09-19 Kloeckner Werke Ag Wandering longwall construction with carriages made up of three support frames arranged side by side
DE1290506B (en) * 1962-11-10 1969-03-13 Groetschel Karl Maria Traveling extension unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290506B (en) * 1962-11-10 1969-03-13 Groetschel Karl Maria Traveling extension unit
DE1277790B (en) * 1965-09-10 1968-09-19 Kloeckner Werke Ag Wandering longwall construction with carriages made up of three support frames arranged side by side

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