AU427572B2 - Improvements in expansion shell and plug units - Google Patents

Improvements in expansion shell and plug units

Info

Publication number
AU427572B2
AU427572B2 AU12612/66A AU1261266A AU427572B2 AU 427572 B2 AU427572 B2 AU 427572B2 AU 12612/66 A AU12612/66 A AU 12612/66A AU 1261266 A AU1261266 A AU 1261266A AU 427572 B2 AU427572 B2 AU 427572B2
Authority
AU
Australia
Prior art keywords
expansion shell
plug units
plug
units
expansion
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.)
Expired
Application number
AU12612/66A
Other languages
English (en)
Other versions
AU1261266A (en
Inventor
TREVITT McKERNIN IAN
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 filed Critical
Priority to AU12612/66A priority Critical patent/AU427572B2/en
Publication of AU1261266A publication Critical patent/AU1261266A/en
Application granted granted Critical
Publication of AU427572B2 publication Critical patent/AU427572B2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means
AU12612/66A 1966-10-17 1966-10-17 Improvements in expansion shell and plug units Expired AU427572B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12612/66A AU427572B2 (en) 1966-10-17 1966-10-17 Improvements in expansion shell and plug units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU12612/66A AU427572B2 (en) 1966-10-17 1966-10-17 Improvements in expansion shell and plug units

Publications (2)

Publication Number Publication Date
AU1261266A AU1261266A (en) 1969-04-17
AU427572B2 true AU427572B2 (en) 1972-08-28

Family

ID=3703100

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12612/66A Expired AU427572B2 (en) 1966-10-17 1966-10-17 Improvements in expansion shell and plug units

Country Status (1)

Country Link
AU (1) AU427572B2 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996012089A1 (en) * 1994-10-14 1996-04-25 H.M. Licence Company (Proprietary) Limited Bail-type expanding shell rockbolt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109339840B (zh) * 2018-11-13 2024-03-05 重庆大学 一种抗扭大变形锚杆

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996012089A1 (en) * 1994-10-14 1996-04-25 H.M. Licence Company (Proprietary) Limited Bail-type expanding shell rockbolt

Also Published As

Publication number Publication date
AU1261266A (en) 1969-04-17

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