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FR888767A - étançons de mines formés d'un poteau intérieur coulissant dans un poteau extérieur - Google Patents

étançons de mines formés d'un poteau intérieur coulissant dans un poteau extérieur

Info

Publication number
FR888767A
FR888767A FR888767DA FR888767A FR 888767 A FR888767 A FR 888767A FR 888767D A FR888767D A FR 888767DA FR 888767 A FR888767 A FR 888767A
Authority
FR
France
Prior art keywords
post
sliding
mine props
props formed
mine
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)
Inventor
Heinrich Toussaint
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Application granted granted Critical
Publication of FR888767A publication Critical patent/FR888767A/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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
FR888767D 1941-12-02 1942-12-04 étançons de mines formés d'un poteau intérieur coulissant dans un poteau extérieur Expired FR888767A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE888767X 1941-12-02

Publications (1)

Publication Number Publication Date
FR888767A true FR888767A (fr) 1943-12-22

Family

ID=6834264

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888767D Expired FR888767A (fr) 1941-12-02 1942-12-04 étançons de mines formés d'un poteau intérieur coulissant dans un poteau extérieur

Country Status (1)

Country Link
FR (1) FR888767A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975699C (de) * 1950-03-16 1962-05-30 Niederlaendischer Staat Nachgiebiger metallener Grubenstempel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975699C (de) * 1950-03-16 1962-05-30 Niederlaendischer Staat Nachgiebiger metallener Grubenstempel

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