FR2076735A5 - - Google Patents

Info

Publication number
FR2076735A5
FR2076735A5 FR7002698A FR7002698A FR2076735A5 FR 2076735 A5 FR2076735 A5 FR 2076735A5 FR 7002698 A FR7002698 A FR 7002698A FR 7002698 A FR7002698 A FR 7002698A FR 2076735 A5 FR2076735 A5 FR 2076735A5
Authority
FR
France
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
FR7002698A
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.)
GOSUDARSTVENNY PROEKTNO
Original Assignee
GOSUDARSTVENNY PROEKTNO
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 GOSUDARSTVENNY PROEKTNO filed Critical GOSUDARSTVENNY PROEKTNO
Priority to FR7002698A priority Critical patent/FR2076735A5/fr
Application granted granted Critical
Publication of FR2076735A5 publication Critical patent/FR2076735A5/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
    • E21D23/04—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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
    • 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
    • E21D23/0082—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor specially adapted for vertical or steep gradient seams

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)
FR7002698A 1970-01-26 1970-01-26 Expired FR2076735A5 (oth)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7002698A FR2076735A5 (oth) 1970-01-26 1970-01-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7002698A FR2076735A5 (oth) 1970-01-26 1970-01-26

Publications (1)

Publication Number Publication Date
FR2076735A5 true FR2076735A5 (oth) 1971-10-15

Family

ID=9049618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7002698A Expired FR2076735A5 (oth) 1970-01-26 1970-01-26

Country Status (1)

Country Link
FR (1) FR2076735A5 (oth)

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Legal Events

Date Code Title Description
ST Notification of lapse