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FR2003695A1 - - Google Patents

Info

Publication number
FR2003695A1
FR2003695A1 FR6906612A FR6906612A FR2003695A1 FR 2003695 A1 FR2003695 A1 FR 2003695A1 FR 6906612 A FR6906612 A FR 6906612A FR 6906612 A FR6906612 A FR 6906612A FR 2003695 A1 FR2003695 A1 FR 2003695A1
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.)
Withdrawn
Application number
FR6906612A
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.)
Individual
Original Assignee
Individual
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 DE19681608278 external-priority patent/DE1608278A1/en
Application filed by Individual filed Critical Individual
Publication of FR2003695A1 publication Critical patent/FR2003695A1/fr
Withdrawn legal-status Critical Current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
    • E21D23/0082—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
    • 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

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)
  • Ladders (AREA)
FR6906612A 1968-03-12 1969-03-10 Withdrawn FR2003695A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681608278 DE1608278A1 (en) 1968-03-12 1968-03-12 Wandering expansion for a longwall, preferably the steep and half-steep storage

Publications (1)

Publication Number Publication Date
FR2003695A1 true FR2003695A1 (en) 1969-11-14

Family

ID=5681507

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6906612A Withdrawn FR2003695A1 (en) 1968-03-12 1969-03-10

Country Status (2)

Country Link
US (1) US3536433A (en)
FR (1) FR2003695A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485619A1 (en) * 1980-06-28 1981-12-31 Gewerk Eisenhuette Westfalia WALKING SUPPORT FOR UNDERGROUND MINING, AND IN PARTICULAR SHIELD PILING SUPPORT

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1394675A (en) * 1971-07-16 1975-05-21 Gullick Dobson Ltd Mine roof support systems
US20170152707A1 (en) * 2015-11-27 2017-06-01 Edward Marrow Expandable Ladder Assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB999943A (en) * 1960-11-29 1965-07-28 Dobson Ltd W E & F Improved mine roof support means
DE1236451B (en) * 1963-12-21 1967-03-16 Karl Maria Groetschel Dipl Ing Guide element that can be used between two adjacent expansion units

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485619A1 (en) * 1980-06-28 1981-12-31 Gewerk Eisenhuette Westfalia WALKING SUPPORT FOR UNDERGROUND MINING, AND IN PARTICULAR SHIELD PILING SUPPORT

Also Published As

Publication number Publication date
US3536433A (en) 1970-10-27

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Legal Events

Date Code Title Description
ST Notification of lapse