FR1278354A - twin struts for the supports of mining galleries - Google Patents

twin struts for the supports of mining galleries

Info

Publication number
FR1278354A
FR1278354A FR849469A FR849469A FR1278354A FR 1278354 A FR1278354 A FR 1278354A FR 849469 A FR849469 A FR 849469A FR 849469 A FR849469 A FR 849469A FR 1278354 A FR1278354 A FR 1278354A
Authority
FR
France
Prior art keywords
struts
twin
supports
mining galleries
galleries
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
FR849469A
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.)
BWG Bergwerk und Walzwerk Maschinenbau GmbH
Original Assignee
BWG Bergwerk und Walzwerk Maschinenbau GmbH
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 to DE1960B0039997 priority Critical patent/DE1865914U/en
Application filed by BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH
Priority to FR849469A priority patent/FR1278354A/en
Application granted granted Critical
Publication of FR1278354A publication Critical patent/FR1278354A/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
    • E21D23/04—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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • 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
    • E21D23/0008—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 comprising a pair of joined struts

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)
FR849469A 1960-01-12 1961-01-12 twin struts for the supports of mining galleries Expired FR1278354A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1960B0039997 DE1865914U (en) 1960-01-12 1960-01-12 DOUBLE STAMP FOR THE EXTENSION OF UNDERGROUND PIT ROOMS.
FR849469A FR1278354A (en) 1961-01-12 1961-01-12 twin struts for the supports of mining galleries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR849469A FR1278354A (en) 1961-01-12 1961-01-12 twin struts for the supports of mining galleries

Publications (1)

Publication Number Publication Date
FR1278354A true FR1278354A (en) 1961-12-08

Family

ID=8746565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR849469A Expired FR1278354A (en) 1960-01-12 1961-01-12 twin struts for the supports of mining galleries

Country Status (1)

Country Link
FR (1) FR1278354A (en)

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