FR1013702A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR1013702A
FR1013702A FR1013702DA FR1013702A FR 1013702 A FR1013702 A FR 1013702A FR 1013702D A FR1013702D A FR 1013702DA FR 1013702 A FR1013702 A FR 1013702A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
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)
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.)
RECH S IND ET MINIERES SOC ET
Original Assignee
RECH S IND ET MINIERES SOC ET
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 RECH S IND ET MINIERES SOC ET filed Critical RECH S IND ET MINIERES SOC ET
Application granted granted Critical
Publication of FR1013702A publication Critical patent/FR1013702A/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
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
FR1013702D 1949-08-02 1949-08-02 étançon de mine Expired FR1013702A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1013702T 1949-08-02

Publications (1)

Publication Number Publication Date
FR1013702A true FR1013702A (fr) 1952-08-04

Family

ID=9571811

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1013702D Expired FR1013702A (fr) 1949-08-02 1949-08-02 étançon de mine

Country Status (1)

Country Link
FR (1) FR1013702A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961212A (en) * 1958-03-06 1960-11-22 Structural Products Inc Supporting post for fixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961212A (en) * 1958-03-06 1960-11-22 Structural Products Inc Supporting post for fixtures

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