DE1068200B - - Google Patents

Info

Publication number
DE1068200B
DE1068200B DENDAT1068200D DE1068200DA DE1068200B DE 1068200 B DE1068200 B DE 1068200B DE NDAT1068200 D DENDAT1068200 D DE NDAT1068200D DE 1068200D A DE1068200D A DE 1068200DA DE 1068200 B DE1068200 B DE 1068200B
Authority
DE
Germany
Prior art keywords
friction
wedge
arms
tendons
torque
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.)
Pending
Application number
DENDAT1068200D
Other languages
German (de)
English (en)
Publication date
Publication of DE1068200B publication Critical patent/DE1068200B/de
Pending 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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/43—Details of wedges
    • 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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
    • E21D15/325—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring by a clamping ring

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)
  • Suspension Of Electric Lines Or Cables (AREA)
DENDAT1068200D Pending DE1068200B (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE1068200B true DE1068200B (enrdf_load_stackoverflow) 1959-11-05

Family

ID=593576

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT1068200D Pending DE1068200B (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE1068200B (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR898890A (fr) * 1942-11-09 1945-05-09 Poteau en fer pour mines
US2474464A (en) * 1947-04-24 1949-06-28 Cable Richard George Pit prop and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR898890A (fr) * 1942-11-09 1945-05-09 Poteau en fer pour mines
US2474464A (en) * 1947-04-24 1949-06-28 Cable Richard George Pit prop and the like

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