FR1476474A - étançon hydraulique de mines - Google Patents

étançon hydraulique de mines

Info

Publication number
FR1476474A
FR1476474A FR58316A FR58316A FR1476474A FR 1476474 A FR1476474 A FR 1476474A FR 58316 A FR58316 A FR 58316A FR 58316 A FR58316 A FR 58316A FR 1476474 A FR1476474 A FR 1476474A
Authority
FR
France
Prior art keywords
mine prop
hydraulic mine
hydraulic
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
FR58316A
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.)
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
Application filed by Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Priority to FR58316A priority Critical patent/FR1476474A/fr
Application granted granted Critical
Publication of FR1476474A publication Critical patent/FR1476474A/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)
FR58316A 1966-04-20 1966-04-20 étançon hydraulique de mines Expired FR1476474A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR58316A FR1476474A (fr) 1966-04-20 1966-04-20 étançon hydraulique de mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR58316A FR1476474A (fr) 1966-04-20 1966-04-20 étançon hydraulique de mines

Publications (1)

Publication Number Publication Date
FR1476474A true FR1476474A (fr) 1967-04-07

Family

ID=8606670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR58316A Expired FR1476474A (fr) 1966-04-20 1966-04-20 étançon hydraulique de mines

Country Status (1)

Country Link
FR (1) FR1476474A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599806A1 (fr) * 1986-06-10 1987-12-11 Douaisis Sabes Stephanoise Valve pour etancon a fluide ou organe analogue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599806A1 (fr) * 1986-06-10 1987-12-11 Douaisis Sabes Stephanoise Valve pour etancon a fluide ou organe analogue

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