AU575047B2 - Timber prop in metal sleeve - Google Patents

Timber prop in metal sleeve

Info

Publication number
AU575047B2
AU575047B2 AU27204/84A AU2720484A AU575047B2 AU 575047 B2 AU575047 B2 AU 575047B2 AU 27204/84 A AU27204/84 A AU 27204/84A AU 2720484 A AU2720484 A AU 2720484A AU 575047 B2 AU575047 B2 AU 575047B2
Authority
AU
Australia
Prior art keywords
metal sleeve
timber prop
timber
prop
sleeve
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.)
Ceased
Application number
AU27204/84A
Other languages
English (en)
Other versions
AU2720484A (en
Inventor
Dirk Cornelius Stephanus Venter
Marcus Marcel Venter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bestobell South Africa Pty Ltd
Original Assignee
BESTOBELL SOUTH AFRICA 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 BESTOBELL SOUTH AFRICA Ltd filed Critical BESTOBELL SOUTH AFRICA Ltd
Publication of AU2720484A publication Critical patent/AU2720484A/en
Application granted granted Critical
Publication of AU575047B2 publication Critical patent/AU575047B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • E21D15/02—Non-telescopic props

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)
  • Rod-Shaped Construction Members (AREA)
AU27204/84A 1982-08-26 1984-04-24 Timber prop in metal sleeve Ceased AU575047B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA826225 1982-08-26

Publications (2)

Publication Number Publication Date
AU2720484A AU2720484A (en) 1985-10-31
AU575047B2 true AU575047B2 (en) 1988-07-21

Family

ID=25576240

Family Applications (1)

Application Number Title Priority Date Filing Date
AU27204/84A Ceased AU575047B2 (en) 1982-08-26 1984-04-24 Timber prop in metal sleeve

Country Status (4)

Country Link
EP (1) EP0160133A1 (enrdf_load_stackoverflow)
AU (1) AU575047B2 (enrdf_load_stackoverflow)
CA (1) CA1216434A (enrdf_load_stackoverflow)
ZA (1) ZA838848B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZW16784A1 (en) * 1983-10-14 1985-02-27 Bestobell South Africa Ltd Elongate mine support
US6910834B2 (en) 2003-05-27 2005-06-28 Burrell Mining Products, Inc. Mine prop
US8851805B2 (en) 2012-08-30 2014-10-07 Burrell Mining Products, Inc. Telescopic mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7307581A (en) * 1980-07-22 1982-01-28 Hepburn Ltd. Yieldable mine roof support
AU2131183A (en) * 1983-08-25 1985-05-23 H L & H Timber Products Pty. Ltd. Timber mine prop with metal sleeve
AU547097B2 (en) * 1980-07-22 1985-10-03 Allan Henry George Brown Mine roof prop

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118969A (en) * 1918-01-05 1918-09-19 Mark Fryar Improvements in Pit Props.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7307581A (en) * 1980-07-22 1982-01-28 Hepburn Ltd. Yieldable mine roof support
AU547097B2 (en) * 1980-07-22 1985-10-03 Allan Henry George Brown Mine roof prop
AU2131183A (en) * 1983-08-25 1985-05-23 H L & H Timber Products Pty. Ltd. Timber mine prop with metal sleeve

Also Published As

Publication number Publication date
CA1216434A (en) 1987-01-13
AU2720484A (en) 1985-10-31
ZA838848B (enrdf_load_stackoverflow) 1984-08-29
EP0160133A1 (en) 1985-11-06

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