FR1453645A - Prolongateur pour étais de mine hydraulique - Google Patents

Prolongateur pour étais de mine hydraulique

Info

Publication number
FR1453645A
FR1453645A FR38115A FR38115A FR1453645A FR 1453645 A FR1453645 A FR 1453645A FR 38115 A FR38115 A FR 38115A FR 38115 A FR38115 A FR 38115A FR 1453645 A FR1453645 A FR 1453645A
Authority
FR
France
Prior art keywords
extension
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
FR38115A
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.)
Kloeckner Werke AG
Original Assignee
Kloeckner 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 Kloeckner Werke AG filed Critical Kloeckner Werke AG
Priority to FR38115A priority Critical patent/FR1453645A/fr
Application granted granted Critical
Publication of FR1453645A publication Critical patent/FR1453645A/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
    • E21D15/517—Extension elements

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)
FR38115A 1965-11-12 1965-11-12 Prolongateur pour étais de mine hydraulique Expired FR1453645A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR38115A FR1453645A (fr) 1965-11-12 1965-11-12 Prolongateur pour étais de mine hydraulique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR38115A FR1453645A (fr) 1965-11-12 1965-11-12 Prolongateur pour étais de mine hydraulique

Publications (1)

Publication Number Publication Date
FR1453645A true FR1453645A (fr) 1966-06-03

Family

ID=8592333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR38115A Expired FR1453645A (fr) 1965-11-12 1965-11-12 Prolongateur pour étais de mine hydraulique

Country Status (1)

Country Link
FR (1) FR1453645A (fr)

Similar Documents

Publication Publication Date Title
FR1466687A (fr) Distributeur hydraulique de sécurité
CH448156A (fr) Machine pour le creusement de tunnels
CH447821A (fr) Machine hydraulique
AT281671B (de) Hydraulischer Mörtel
FI47571C (fi) Hydraulinen sementtikoostumus.
FR1453645A (fr) Prolongateur pour étais de mine hydraulique
IT972008B (it) Deflagratore per mine terrestri
FR1453017A (fr) étançon déformable pour exploitations minières
FR1359017A (fr) étançon hydraulique pour mines
AT259490B (de) Wandernder hydraulischer Strebausbau
FR1460867A (fr) Véhicule pour chantier de creusement de galerie
FR1420839A (fr) étançon hydraulique pour mines
FR1359021A (fr) Support affaissable pour soutènement de mines
FR1374185A (fr) étai hydraulique de mine
FR1355001A (fr) étancon hydraulique pour mines
FR1414278A (fr) étançon hydraulique pour mines
FR1462787A (fr) Machines hydrauliques
FR1421056A (fr) Perfectionnements aux supports hydrauliques pour toits de mines
FR1506688A (fr) Machine pour le percement de tunnels
FR1345213A (fr) étançon hydraulique pour mines
FR87064E (fr) Perfectionnements apportés aux étançons hydrauliques pour mines
CH412749A (fr) Machine hydraulique
FR1390105A (fr) étai hydraulique de mine
FR1452508A (fr) étançon hydraulique de mine
FR1476474A (fr) étançon hydraulique de mines