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FR1329039A - Device for mounting extension bars for supports in mines - Google Patents

Device for mounting extension bars for supports in mines

Info

Publication number
FR1329039A
FR1329039A FR895664A FR895664A FR1329039A FR 1329039 A FR1329039 A FR 1329039A FR 895664 A FR895664 A FR 895664A FR 895664 A FR895664 A FR 895664A FR 1329039 A FR1329039 A FR 1329039A
Authority
FR
France
Prior art keywords
mines
supports
extension bars
mounting extension
mounting
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
FR895664A
Other languages
French (fr)
Inventor
Emile Beaudoux
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 filed Critical
Priority to FR895664A priority Critical patent/FR1329039A/en
Application granted granted Critical
Publication of FR1329039A publication Critical patent/FR1329039A/en
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
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
FR895664A 1962-04-26 1962-04-26 Device for mounting extension bars for supports in mines Expired FR1329039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR895664A FR1329039A (en) 1962-04-26 1962-04-26 Device for mounting extension bars for supports in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR895664A FR1329039A (en) 1962-04-26 1962-04-26 Device for mounting extension bars for supports in mines

Publications (1)

Publication Number Publication Date
FR1329039A true FR1329039A (en) 1963-06-07

Family

ID=8777685

Family Applications (1)

Application Number Title Priority Date Filing Date
FR895664A Expired FR1329039A (en) 1962-04-26 1962-04-26 Device for mounting extension bars for supports in mines

Country Status (1)

Country Link
FR (1) FR1329039A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364682A (en) * 1964-03-09 1968-01-23 Dowty Mining Equipment Ltd Roof support suitable for use in mines
US4492495A (en) * 1982-07-09 1985-01-08 Dowty Mining Equipment Limited Roof support for use in mines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364682A (en) * 1964-03-09 1968-01-23 Dowty Mining Equipment Ltd Roof support suitable for use in mines
US4492495A (en) * 1982-07-09 1985-01-08 Dowty Mining Equipment Limited Roof support for use in mines

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