FR82755E - Anchoring device in particular for roof bolts of underground galleries - Google Patents

Anchoring device in particular for roof bolts of underground galleries

Info

Publication number
FR82755E
FR82755E FR892548A FR892548A FR82755E FR 82755 E FR82755 E FR 82755E FR 892548 A FR892548 A FR 892548A FR 892548 A FR892548 A FR 892548A FR 82755 E FR82755 E FR 82755E
Authority
FR
France
Prior art keywords
anchoring device
roof bolts
underground galleries
galleries
underground
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
FR892548A
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.)
FORGES ET BOULONNERIES HERMANT
Original Assignee
FORGES ET BOULONNERIES HERMANT
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 FORGES ET BOULONNERIES HERMANT filed Critical FORGES ET BOULONNERIES HERMANT
Priority to FR892548A priority Critical patent/FR82755E/en
Priority to GB1425262A priority patent/GB1008863A/en
Application granted granted Critical
Publication of FR82755E publication Critical patent/FR82755E/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection

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)
FR892548A 1961-04-13 1962-03-28 Anchoring device in particular for roof bolts of underground galleries Expired FR82755E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR892548A FR82755E (en) 1962-03-28 1962-03-28 Anchoring device in particular for roof bolts of underground galleries
GB1425262A GB1008863A (en) 1961-04-13 1962-04-12 Anchoring device, particularly for roof bolts in underground galleries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR892548A FR82755E (en) 1962-03-28 1962-03-28 Anchoring device in particular for roof bolts of underground galleries

Publications (1)

Publication Number Publication Date
FR82755E true FR82755E (en) 1964-04-17

Family

ID=8775535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR892548A Expired FR82755E (en) 1961-04-13 1962-03-28 Anchoring device in particular for roof bolts of underground galleries

Country Status (1)

Country Link
FR (1) FR82755E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439576A (en) * 1965-05-20 1969-04-22 Lester Lerich Wedge type expansion bolt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439576A (en) * 1965-05-20 1969-04-22 Lester Lerich Wedge type expansion bolt

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