FR1186071A - étai télescopique - Google Patents

étai télescopique

Info

Publication number
FR1186071A
FR1186071A FR1186071DA FR1186071A FR 1186071 A FR1186071 A FR 1186071A FR 1186071D A FR1186071D A FR 1186071DA FR 1186071 A FR1186071 A FR 1186071A
Authority
FR
France
Prior art keywords
telescopic prop
prop
telescopic
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
Nicolas-Joseph Rutigliano
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 FR1186071A publication Critical patent/FR1186071A/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
    • E21D15/46—Telescopic props with load-measuring devices; with alarm devices
    • E21D15/465—Telescopic props with load-measuring devices; with alarm devices with essential hydraulic or pneumatic details
    • 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
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/22—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure

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)
FR1186071D 1957-11-15 1957-11-15 étai télescopique Expired FR1186071A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1186071T 1957-11-15

Publications (1)

Publication Number Publication Date
FR1186071A true FR1186071A (fr) 1959-08-13

Family

ID=9664215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1186071D Expired FR1186071A (fr) 1957-11-15 1957-11-15 étai télescopique

Country Status (1)

Country Link
FR (1) FR1186071A (fr)

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