FR898891A - Iron pole for mines with a wedge lock - Google Patents

Iron pole for mines with a wedge lock

Info

Publication number
FR898891A
FR898891A FR898891DA FR898891A FR 898891 A FR898891 A FR 898891A FR 898891D A FR898891D A FR 898891DA FR 898891 A FR898891 A FR 898891A
Authority
FR
France
Prior art keywords
mines
wedge lock
iron pole
pole
iron
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
French (fr)
Inventor
Arnold Koepe
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
Application granted granted Critical
Publication of FR898891A publication Critical patent/FR898891A/en
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)
FR898891D 1943-05-10 1943-10-15 Iron pole for mines with a wedge lock Expired FR898891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE898891X 1943-05-10

Publications (1)

Publication Number Publication Date
FR898891A true FR898891A (en) 1945-05-09

Family

ID=6849305

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898891D Expired FR898891A (en) 1943-05-10 1943-10-15 Iron pole for mines with a wedge lock

Country Status (1)

Country Link
FR (1) FR898891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942682C (en) * 1951-07-17 1956-05-03 Gutehoffnungshuette Sterkrade Pit stamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942682C (en) * 1951-07-17 1956-05-03 Gutehoffnungshuette Sterkrade Pit stamp

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