ATA274282A - EXTENSION FOR LARGE SLEEVE WIDTHS - Google Patents

EXTENSION FOR LARGE SLEEVE WIDTHS

Info

Publication number
ATA274282A
ATA274282A AT0274282A AT274282A ATA274282A AT A274282 A ATA274282 A AT A274282A AT 0274282 A AT0274282 A AT 0274282A AT 274282 A AT274282 A AT 274282A AT A274282 A ATA274282 A AT A274282A
Authority
AT
Austria
Prior art keywords
extension
large sleeve
widths
sleeve widths
sleeve
Prior art date
Application number
AT0274282A
Other languages
German (de)
Other versions
AT375154B (en
Original Assignee
Voest Alpine Ag
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 Voest Alpine Ag filed Critical Voest Alpine Ag
Priority to AT0274282A priority Critical patent/AT375154B/en
Priority to AU15485/83A priority patent/AU561615B2/en
Priority to ZA834204A priority patent/ZA834204B/en
Publication of ATA274282A publication Critical patent/ATA274282A/en
Application granted granted Critical
Publication of AT375154B publication Critical patent/AT375154B/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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0017—Pile type supports
    • E21D23/003—Pile type supports consisting of a rigid pile
    • 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
    • E21D15/52—Extensible units located above or below standard props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
AT0274282A 1982-07-14 1982-07-14 EXTENSION FOR LARGE SLEEVE WIDTHS AT375154B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT0274282A AT375154B (en) 1982-07-14 1982-07-14 EXTENSION FOR LARGE SLEEVE WIDTHS
AU15485/83A AU561615B2 (en) 1982-07-14 1983-06-08 Hydraulic prop with extension
ZA834204A ZA834204B (en) 1982-07-14 1983-06-08 Mine consolidation for seams of great thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0274282A AT375154B (en) 1982-07-14 1982-07-14 EXTENSION FOR LARGE SLEEVE WIDTHS

Publications (2)

Publication Number Publication Date
ATA274282A true ATA274282A (en) 1983-11-15
AT375154B AT375154B (en) 1984-07-10

Family

ID=3539573

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0274282A AT375154B (en) 1982-07-14 1982-07-14 EXTENSION FOR LARGE SLEEVE WIDTHS

Country Status (3)

Country Link
AT (1) AT375154B (en)
AU (1) AU561615B2 (en)
ZA (1) ZA834204B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015125A (en) * 1990-04-05 1991-05-14 Seegmiller Ben L Yieldable mine post

Also Published As

Publication number Publication date
ZA834204B (en) 1984-03-28
AU561615B2 (en) 1987-05-14
AU1548583A (en) 1984-01-19
AT375154B (en) 1984-07-10

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee