BE557087A - - Google Patents

Info

Publication number
BE557087A
BE557087A BE557087DA BE557087A BE 557087 A BE557087 A BE 557087A BE 557087D A BE557087D A BE 557087DA BE 557087 A BE557087 A BE 557087A
Authority
BE
Belgium
Prior art keywords
prop
flexible
key
strut
friction
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE557087A publication Critical patent/BE557087A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10Telescoping systems
    • F16B7/14Telescoping systems locking in intermediate non-discrete positions
    • 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
    • E21D15/14Telescopic props
    • E21D15/28Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/36Telescopic props with parts held relatively to each other by friction or gripping by a tiltable collar surrounding one or both parts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
BE557087D BE557087A (de)

Publications (1)

Publication Number Publication Date
BE557087A true BE557087A (de)

Family

ID=180633

Family Applications (1)

Application Number Title Priority Date Filing Date
BE557087D BE557087A (de)

Country Status (1)

Country Link
BE (1) BE557087A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900337A4 (de) * 1996-05-22 2001-11-21 Vesko Ananiev Trennung von einzelsträngigem und doppelsträngigem dns-material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900337A4 (de) * 1996-05-22 2001-11-21 Vesko Ananiev Trennung von einzelsträngigem und doppelsträngigem dns-material

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