FR1339342A - Improvements to or relating to ceiling supports in mines - Google Patents

Improvements to or relating to ceiling supports in mines

Info

Publication number
FR1339342A
FR1339342A FR915878A FR915878A FR1339342A FR 1339342 A FR1339342 A FR 1339342A FR 915878 A FR915878 A FR 915878A FR 915878 A FR915878 A FR 915878A FR 1339342 A FR1339342 A FR 1339342A
Authority
FR
France
Prior art keywords
mines
relating
ceiling supports
ceiling
supports
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
FR915878A
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F Dobson 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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Priority to FR915878A priority Critical patent/FR1339342A/en
Application granted granted Critical
Publication of FR1339342A publication Critical patent/FR1339342A/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
    • E21D23/0418—Positioning devices and stabilizing means for the props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
FR915878A 1962-11-19 1962-11-19 Improvements to or relating to ceiling supports in mines Expired FR1339342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR915878A FR1339342A (en) 1962-11-19 1962-11-19 Improvements to or relating to ceiling supports in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR915878A FR1339342A (en) 1962-11-19 1962-11-19 Improvements to or relating to ceiling supports in mines

Publications (1)

Publication Number Publication Date
FR1339342A true FR1339342A (en) 1963-10-04

Family

ID=8791101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915878A Expired FR1339342A (en) 1962-11-19 1962-11-19 Improvements to or relating to ceiling supports in mines

Country Status (1)

Country Link
FR (1) FR1339342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323771A (en) * 1964-09-24 1967-06-06 Dowty Mining Equipment Ltd Roof support suitable for use in mines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323771A (en) * 1964-09-24 1967-06-06 Dowty Mining Equipment Ltd Roof support suitable for use in mines

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