AU575047B2 - Timber prop in metal sleeve - Google Patents
Timber prop in metal sleeveInfo
- 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
Links
- 239000002184 metal Substances 0.000 title 1
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)
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 (en) |
AU (1) | AU575047B2 (en) |
CA (1) | CA1216434A (en) |
ZA (1) | ZA838848B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1231843A (en) * | 1983-10-14 | 1988-01-26 | Dirk C.S. Venter | 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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB118969A (en) * | 1918-01-05 | 1918-09-19 | Mark Fryar | Improvements in Pit Props. |
-
1983
- 1983-11-28 ZA ZA838848A patent/ZA838848B/xx unknown
-
1984
- 1984-04-24 CA CA000452624A patent/CA1216434A/en not_active Expired
- 1984-04-24 AU AU27204/84A patent/AU575047B2/en not_active Ceased
- 1984-04-25 EP EP84302769A patent/EP0160133A1/en not_active Withdrawn
Patent Citations (3)
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 |
---|---|
EP0160133A1 (en) | 1985-11-06 |
AU2720484A (en) | 1985-10-31 |
CA1216434A (en) | 1987-01-13 |
ZA838848B (en) | 1984-08-29 |
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