FR993547A - prop - Google Patents

prop

Info

Publication number
FR993547A
FR993547A FR993547DA FR993547A FR 993547 A FR993547 A FR 993547A FR 993547D A FR993547D A FR 993547DA FR 993547 A FR993547 A FR 993547A
Authority
FR
France
Prior art keywords
prop
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)
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.)
ALUMINIUM FRANCAIS
Original Assignee
ALUMINIUM FRANCAIS
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 ALUMINIUM FRANCAIS filed Critical ALUMINIUM FRANCAIS
Application granted granted Critical
Publication of FR993547A publication Critical patent/FR993547A/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
    • E21D15/50—Component parts or details of props
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
    • 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
    • E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material
    • 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
    • E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
    • E21D15/155—Built-in cleaning devices

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)
FR993547D 1949-06-24 1949-06-24 prop Expired FR993547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR993547T 1949-06-24

Publications (1)

Publication Number Publication Date
FR993547A true FR993547A (en) 1951-11-02

Family

ID=9555763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR993547D Expired FR993547A (en) 1949-06-24 1949-06-24 prop

Country Status (1)

Country Link
FR (1) FR993547A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665348A1 (en) * 1994-01-08 1995-08-02 Gerhard Dingler Telescopic strut for building construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665348A1 (en) * 1994-01-08 1995-08-02 Gerhard Dingler Telescopic strut for building construction

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