FR876515A - Effondreur - Google Patents

Effondreur

Info

Publication number
FR876515A
FR876515A FR876515DA FR876515A FR 876515 A FR876515 A FR 876515A FR 876515D A FR876515D A FR 876515DA FR 876515 A FR876515 A FR 876515A
Authority
FR
France
Prior art keywords
collapsing
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
Other languages
English (en)
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.)
CHARBONNAGES LIMBOURG MEUSE
Original Assignee
CHARBONNAGES LIMBOURG MEUSE
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 CHARBONNAGES LIMBOURG MEUSE filed Critical CHARBONNAGES LIMBOURG MEUSE
Application granted granted Critical
Publication of FR876515A publication Critical patent/FR876515A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21D15/60—Devices for withdrawing props or chocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR876515D 1939-05-26 1940-12-23 Effondreur Expired FR876515A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE876515X 1939-05-26

Publications (1)

Publication Number Publication Date
FR876515A true FR876515A (fr) 1942-11-09

Family

ID=3883115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR876515D Expired FR876515A (fr) 1939-05-26 1940-12-23 Effondreur

Country Status (1)

Country Link
FR (1) FR876515A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018371B (de) * 1955-10-15 1957-10-31 Mining Engineering Co Ltd Ausloesevorrichtung fuer Wanderpfeiler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018371B (de) * 1955-10-15 1957-10-31 Mining Engineering Co Ltd Ausloesevorrichtung fuer Wanderpfeiler

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