BE442779A - - Google Patents

Info

Publication number
BE442779A
BE442779A BE442779DA BE442779A BE 442779 A BE442779 A BE 442779A BE 442779D A BE442779D A BE 442779DA BE 442779 A BE442779 A BE 442779A
Authority
BE
Belgium
Prior art keywords
liquid
cable
motor
pump
additional
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE442779A publication Critical patent/BE442779A/fr

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
    • E21D15/60—Devices for withdrawing props or chocks

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)
  • Unwinding Of Filamentary Materials (AREA)
BE442779D BE442779A (ref)

Publications (1)

Publication Number Publication Date
BE442779A true BE442779A (ref)

Family

ID=99887

Family Applications (1)

Application Number Title Priority Date Filing Date
BE442779D BE442779A (ref)

Country Status (1)

Country Link
BE (1) BE442779A (ref)

Similar Documents

Publication Publication Date Title
FR2465906A1 (fr) Appareil de pompage pour puits de petrole
US4100973A (en) Side load protection arrangement for rotating equipment
BE501502A (ref)
FR2461826A1 (fr) Pompe d'injection de carburant pour moteurs a combustion interne
FR2756003A1 (fr) Dispositif de forage
US4362478A (en) Bypass valve for sucker rod pumps
CH126352A (fr) Dispositif de forage pour sondages.
BE509892A (ref)
CN216478552U (zh) 小麦机液控主离合拉杆结构
BE655785A (ref)
FR2528146A1 (fr) Valve magnetique pilotee a systeme d'obturation perfectionne
BE567502A (ref)
FR2866781A1 (fr) Dispositif de suspension d'un outil de coupe ou de broyage a un elemnt porteur comportant des moyens permettant de commander son mouvement d'abaissement et/ou de soulevement
BE381121A (ref)
BE390211A (ref)
BE354226A (ref)
BE376925A (ref)
BE504843A (ref)
BE503505A (ref)
NO142094B (no) Hydraulisk system.
FR2541364A1 (fr) Turboforeuse avec bipasse de prevention de survitesse
BE455620A (ref)
BE379378A (ref)
BE513940A (ref)
CH348671A (fr) Machine enrouleuse-dérouleuse à action commandée