FR1015645A - étai de mine réglable - Google Patents

étai de mine réglable

Info

Publication number
FR1015645A
FR1015645A FR1015645DA FR1015645A FR 1015645 A FR1015645 A FR 1015645A FR 1015645D A FR1015645D A FR 1015645DA FR 1015645 A FR1015645 A FR 1015645A
Authority
FR
France
Prior art keywords
mine prop
adjustable mine
adjustable
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.)
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 FR1015645A publication Critical patent/FR1015645A/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
    • E21D15/38—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)
FR1015645D 1949-06-17 1950-02-20 étai de mine réglable Expired FR1015645A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1015645X 1949-06-17

Publications (1)

Publication Number Publication Date
FR1015645A true FR1015645A (fr) 1952-10-16

Family

ID=7706053

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1015645D Expired FR1015645A (fr) 1949-06-17 1950-02-20 étai de mine réglable

Country Status (1)

Country Link
FR (1) FR1015645A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147552B (de) * 1954-05-17 1963-04-25 Bochumer Eisen Heintzmann Nachgiebiger Rohrstempel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147552B (de) * 1954-05-17 1963-04-25 Bochumer Eisen Heintzmann Nachgiebiger Rohrstempel

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