FR1004600A - étançon métallique pour mines - Google Patents

étançon métallique pour mines

Info

Publication number
FR1004600A
FR1004600A FR1004600DA FR1004600A FR 1004600 A FR1004600 A FR 1004600A FR 1004600D A FR1004600D A FR 1004600DA FR 1004600 A FR1004600 A FR 1004600A
Authority
FR
France
Prior art keywords
mines
metal prop
prop
metal
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)
French (fr)
Inventor
Schmidt
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.)
D'ETUDES ET DE RECHERCHES INDUSTRIELLES ET MINIERES Ste
Original Assignee
D'ETUDES ET DE RECHERCHES INDUSTRIELLES ET MINIERES Ste
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 D'ETUDES ET DE RECHERCHES INDUSTRIELLES ET MINIERES Ste filed Critical D'ETUDES ET DE RECHERCHES INDUSTRIELLES ET MINIERES Ste
Application granted granted Critical
Publication of FR1004600A publication Critical patent/FR1004600A/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
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded

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)
  • Clamps And Clips (AREA)
FR1004600D 1949-03-04 1949-07-27 étançon métallique pour mines Expired FR1004600A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1004600X 1949-03-04

Publications (1)

Publication Number Publication Date
FR1004600A true FR1004600A (fr) 1952-03-31

Family

ID=7656555

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1004600D Expired FR1004600A (fr) 1949-03-04 1949-07-27 étançon métallique pour mines

Country Status (2)

Country Link
BE (2) BE491065A (ro)
FR (1) FR1004600A (ro)

Families Citing this family (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

Also Published As

Publication number Publication date
BE491065A (ro) 1949-09-30
BE491088R (ro) 1949-09-30

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