FR882040A - Iron pole for mines - Google Patents

Iron pole for mines

Info

Publication number
FR882040A
FR882040A FR882040DA FR882040A FR 882040 A FR882040 A FR 882040A FR 882040D A FR882040D A FR 882040DA FR 882040 A FR882040 A FR 882040A
Authority
FR
France
Prior art keywords
mines
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
August Fischer
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 FR882040A publication Critical patent/FR882040A/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
    • E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
    • 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
    • E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

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)
FR882040D 1938-10-10 1942-05-13 Iron pole for mines Expired FR882040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE882040X 1938-10-10

Publications (1)

Publication Number Publication Date
FR882040A true FR882040A (en) 1943-05-14

Family

ID=6831551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882040D Expired FR882040A (en) 1938-10-10 1942-05-13 Iron pole for mines

Country Status (1)

Country Link
FR (1) FR882040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967492C (en) * 1946-01-16 1957-11-14 Etancon Compense S A R L L Metallic pit stamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967492C (en) * 1946-01-16 1957-11-14 Etancon Compense S A R L L Metallic pit stamp

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