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FR1170562A - Piedroit pour mines - Google Patents

Piedroit pour mines

Info

Publication number
FR1170562A
FR1170562A FR1170562DA FR1170562A FR 1170562 A FR1170562 A FR 1170562A FR 1170562D A FR1170562D A FR 1170562DA FR 1170562 A FR1170562 A FR 1170562A
Authority
FR
France
Prior art keywords
piedroit
mines
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
Karl Gerlach
Hans Gerlach
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 FR1170562A publication Critical patent/FR1170562A/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
    • E21D15/50—Component parts or details of props
    • E21D15/52—Extensible units located above or below standard props

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)
FR1170562D 1957-04-02 1957-04-02 Piedroit pour mines Expired FR1170562A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1170562T 1957-04-02

Publications (1)

Publication Number Publication Date
FR1170562A true FR1170562A (fr) 1959-01-15

Family

ID=9657130

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1170562D Expired FR1170562A (fr) 1957-04-02 1957-04-02 Piedroit pour mines

Country Status (1)

Country Link
FR (1) FR1170562A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131627B (de) * 1960-11-15 1962-06-20 Hermann Schwarz Kommanditgesel Gesickte Kopf- oder Fussplatte fuer Grubenstempel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131627B (de) * 1960-11-15 1962-06-20 Hermann Schwarz Kommanditgesel Gesickte Kopf- oder Fussplatte fuer Grubenstempel

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