FR1009056A - mine prop - Google Patents

mine prop

Info

Publication number
FR1009056A
FR1009056A FR1009056DA FR1009056A FR 1009056 A FR1009056 A FR 1009056A FR 1009056D A FR1009056D A FR 1009056DA FR 1009056 A FR1009056 A FR 1009056A
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
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke AG
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 Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Application granted granted Critical
Publication of FR1009056A publication Critical patent/FR1009056A/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
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

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)
FR1009056D 1949-10-27 1950-01-24 mine prop Expired FR1009056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1009056X 1949-10-27

Publications (1)

Publication Number Publication Date
FR1009056A true FR1009056A (en) 1952-05-26

Family

ID=7669653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1009056D Expired FR1009056A (en) 1949-10-27 1950-01-24 mine prop

Country Status (1)

Country Link
FR (1) FR1009056A (en)

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