AT257513B - Extension element for underground mining operations - Google Patents

Extension element for underground mining operations

Info

Publication number
AT257513B
AT257513B AT1146865A AT1146865A AT257513B AT 257513 B AT257513 B AT 257513B AT 1146865 A AT1146865 A AT 1146865A AT 1146865 A AT1146865 A AT 1146865A AT 257513 B AT257513 B AT 257513B
Authority
AT
Austria
Prior art keywords
extension element
underground mining
mining operations
operations
underground
Prior art date
Application number
AT1146865A
Other languages
German (de)
Original Assignee
Gullick Ltd
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 Gullick Ltd filed Critical Gullick Ltd
Application granted granted Critical
Publication of AT257513B publication Critical patent/AT257513B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0418—Positioning devices and stabilizing means for the props
    • 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
    • E21D15/54—Details of the ends of props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
AT1146865A 1964-12-23 1965-12-20 Extension element for underground mining operations AT257513B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52305/64A GB1115763A (en) 1964-12-23 1964-12-23 Improvements in or relating to mine roof and like supports

Publications (1)

Publication Number Publication Date
AT257513B true AT257513B (en) 1967-10-10

Family

ID=10463426

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1146865A AT257513B (en) 1964-12-23 1965-12-20 Extension element for underground mining operations

Country Status (4)

Country Link
US (1) US3269686A (en)
AT (1) AT257513B (en)
FR (1) FR1473053A (en)
GB (1) GB1115763A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1226815A (en) * 1967-04-28 1971-03-31
GB1295075A (en) * 1969-04-08 1972-11-01
US4030308A (en) * 1976-05-21 1977-06-21 Fletcher Sutcliffe Wild Limited Mine roof supports

Also Published As

Publication number Publication date
GB1115763A (en) 1968-05-29
FR1473053A (en) 1967-03-17
US3269686A (en) 1966-08-30

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