FR1077354A - Support device, especially for mines - Google Patents

Support device, especially for mines

Info

Publication number
FR1077354A
FR1077354A FR1077354DA FR1077354A FR 1077354 A FR1077354 A FR 1077354A FR 1077354D A FR1077354D A FR 1077354DA FR 1077354 A FR1077354 A FR 1077354A
Authority
FR
France
Prior art keywords
mines
support device
support
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
Marcel-Louis Klein
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 FR1077354A publication Critical patent/FR1077354A/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
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/20—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals

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)
FR1077354D 1953-05-16 1953-05-16 Support device, especially for mines Expired FR1077354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1077354T 1953-05-16

Publications (1)

Publication Number Publication Date
FR1077354A true FR1077354A (en) 1954-11-08

Family

ID=9608149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1077354D Expired FR1077354A (en) 1953-05-16 1953-05-16 Support device, especially for mines

Country Status (1)

Country Link
FR (1) FR1077354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170664A (en) * 1963-05-13 1965-02-23 John W Carner Support clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170664A (en) * 1963-05-13 1965-02-23 John W Carner Support clamp

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