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FR1058141A - étancon de mine, hydraulique et réglable - Google Patents

étancon de mine, hydraulique et réglable

Info

Publication number
FR1058141A
FR1058141A FR1058141DA FR1058141A FR 1058141 A FR1058141 A FR 1058141A FR 1058141D A FR1058141D A FR 1058141DA FR 1058141 A FR1058141 A FR 1058141A
Authority
FR
France
Prior art keywords
hydraulic
adjustable
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.)
EISENWERK WANHEIM GmbH
Original Assignee
EISENWERK WANHEIM GmbH
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 EISENWERK WANHEIM GmbH filed Critical EISENWERK WANHEIM GmbH
Application granted granted Critical
Publication of FR1058141A publication Critical patent/FR1058141A/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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

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)
  • Safety Valves (AREA)
FR1058141D 1951-06-09 1952-06-09 étancon de mine, hydraulique et réglable Expired FR1058141A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE737748X 1951-06-09

Publications (1)

Publication Number Publication Date
FR1058141A true FR1058141A (fr) 1954-03-15

Family

ID=6642646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1058141D Expired FR1058141A (fr) 1951-06-09 1952-06-09 étancon de mine, hydraulique et réglable

Country Status (3)

Country Link
BE (1) BE511952A (fr)
FR (1) FR1058141A (fr)
GB (1) GB737748A (fr)

Also Published As

Publication number Publication date
GB737748A (en) 1955-09-28
BE511952A (fr)

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