FR1181473A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR1181473A
FR1181473A FR1181473DA FR1181473A FR 1181473 A FR1181473 A FR 1181473A FR 1181473D A FR1181473D A FR 1181473DA FR 1181473 A FR1181473 A FR 1181473A
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)
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 FR1181473A publication Critical patent/FR1181473A/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
    • E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
    • E21D15/325—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring by a clamping ring

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)
FR1181473D 1956-08-10 1957-08-09 étançon de mine Expired FR1181473A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1181473X 1956-08-10

Publications (1)

Publication Number Publication Date
FR1181473A true FR1181473A (fr) 1959-06-16

Family

ID=7730303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1181473D Expired FR1181473A (fr) 1956-08-10 1957-08-09 étançon de mine

Country Status (1)

Country Link
FR (1) FR1181473A (fr)

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