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FR1380951A - Valve device for hydraulic mine props - Google Patents

Valve device for hydraulic mine props

Info

Publication number
FR1380951A
FR1380951A FR961343A FR961343A FR1380951A FR 1380951 A FR1380951 A FR 1380951A FR 961343 A FR961343 A FR 961343A FR 961343 A FR961343 A FR 961343A FR 1380951 A FR1380951 A FR 1380951A
Authority
FR
France
Prior art keywords
valve device
mine props
hydraulic mine
hydraulic
props
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
FR961343A
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade 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
Priority claimed from DEG36909A external-priority patent/DE1195251B/en
Application filed by Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Priority to FR961343A priority Critical patent/FR1380951A/en
Application granted granted Critical
Publication of FR1380951A publication Critical patent/FR1380951A/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
    • E21D15/50—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)
FR961343A 1963-01-26 1964-01-23 Valve device for hydraulic mine props Expired FR1380951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR961343A FR1380951A (en) 1963-01-26 1964-01-23 Valve device for hydraulic mine props

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG36909A DE1195251B (en) 1963-01-26 1963-01-26 Valve arrangement for hydraulic pit rams
FR961343A FR1380951A (en) 1963-01-26 1964-01-23 Valve device for hydraulic mine props

Publications (1)

Publication Number Publication Date
FR1380951A true FR1380951A (en) 1964-12-04

Family

ID=25978490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR961343A Expired FR1380951A (en) 1963-01-26 1964-01-23 Valve device for hydraulic mine props

Country Status (1)

Country Link
FR (1) FR1380951A (en)

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