BE474431A - - Google Patents

Info

Publication number
BE474431A
BE474431A BE474431DA BE474431A BE 474431 A BE474431 A BE 474431A BE 474431D A BE474431D A BE 474431DA BE 474431 A BE474431 A BE 474431A
Authority
BE
Belgium
Prior art keywords
axis
prop
lever
articulated
levers
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE474431A publication Critical patent/BE474431A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58Devices for setting props or chocks
    • E21D15/581Devices for setting props or chocks in which the props are pre- loaded
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00Shores or struts; Chocks
    • E04G25/04Shores or struts; Chocks telescopic
    • E04G25/06Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/066Shores or struts; Chocks telescopic with parts held together by positive means by a wedge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Clamps And Clips (AREA)
BE474431D BE474431A (forum.php)

Publications (1)

Publication Number Publication Date
BE474431A true BE474431A (forum.php)

Family

ID=123444

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474431D BE474431A (forum.php)

Country Status (1)

Country Link
BE (1) BE474431A (forum.php)

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