FR2154595B1 - - Google Patents

Info

Publication number
FR2154595B1
FR2154595B1 FR7233999A FR7233999A FR2154595B1 FR 2154595 B1 FR2154595 B1 FR 2154595B1 FR 7233999 A FR7233999 A FR 7233999A FR 7233999 A FR7233999 A FR 7233999A FR 2154595 B1 FR2154595 B1 FR 2154595B1
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
FR7233999A
Other languages
French (fr)
Other versions
FR2154595A1 (ja
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.)
Banyaszati Kutato Intezet
Original Assignee
Banyaszati Kutato Intezet
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 Banyaszati Kutato Intezet filed Critical Banyaszati Kutato Intezet
Publication of FR2154595A1 publication Critical patent/FR2154595A1/fr
Application granted granted Critical
Publication of FR2154595B1 publication Critical patent/FR2154595B1/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
    • 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
    • E21D23/063—Retractable cantilever extensions therefor

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)
FR7233999A 1971-09-28 1972-09-26 Expired FR2154595B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUBA014174 1971-09-28

Publications (2)

Publication Number Publication Date
FR2154595A1 FR2154595A1 (ja) 1973-05-11
FR2154595B1 true FR2154595B1 (ja) 1980-04-18

Family

ID=10993507

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7233999A Expired FR2154595B1 (ja) 1971-09-28 1972-09-26

Country Status (1)

Country Link
FR (1) FR2154595B1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2447429A1 (de) * 1974-07-02 1976-04-08 Johannes Winkler Schildausbau mit kappenlenkvorrichtung

Also Published As

Publication number Publication date
FR2154595A1 (ja) 1973-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse