FR59081E - Clamping device for mine props - Google Patents

Clamping device for mine props

Info

Publication number
FR59081E
FR59081E FR59081DA FR59081E FR 59081 E FR59081 E FR 59081E FR 59081D A FR59081D A FR 59081DA FR 59081 E FR59081 E FR 59081E
Authority
FR
France
Prior art keywords
clamping device
mine props
props
mine
clamping
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.)
ETANCON COMPENSE L
Original Assignee
ETANCON COMPENSE L
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 ETANCON COMPENSE L filed Critical ETANCON COMPENSE L
Application granted granted Critical
Publication of FR59081E publication Critical patent/FR59081E/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
    • E21D15/28—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)
FR59081D 1948-11-24 1948-11-24 Clamping device for mine props Expired FR59081E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR59081T 1948-11-24

Publications (1)

Publication Number Publication Date
FR59081E true FR59081E (en) 1954-04-22

Family

ID=8692928

Family Applications (1)

Application Number Title Priority Date Filing Date
FR59081D Expired FR59081E (en) 1948-11-24 1948-11-24 Clamping device for mine props

Country Status (1)

Country Link
FR (1) FR59081E (en)

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