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AU488121B2 - Means for preventing back-rotation - Google Patents
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AU488121B2 - Means for preventing back-rotation - Google Patents

Means for preventing back-rotation

Info

Publication number
AU488121B2
AU488121B2 AU76025/74A AU7602574A AU488121B2 AU 488121 B2 AU488121 B2 AU 488121B2 AU 76025/74 A AU76025/74 A AU 76025/74A AU 7602574 A AU7602574 A AU 7602574A AU 488121 B2 AU488121 B2 AU 488121B2
Authority
AU
Australia
Prior art keywords
rotation
preventing back
preventing
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
AU76025/74A
Other versions
AU7602574A (en
Inventor
I. Williams Chester
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.)
I Williams
Original Assignee
I Williams
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 I Williams filed Critical I Williams
Priority to AU76025/74A priority Critical patent/AU488121B2/en
Application granted granted Critical
Publication of AU488121B2 publication Critical patent/AU488121B2/en
Publication of AU7602574A publication Critical patent/AU7602574A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts

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)
AU76025/74A 1974-12-03 1974-12-03 Means for preventing back-rotation Expired AU488121B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU76025/74A AU488121B2 (en) 1974-12-03 1974-12-03 Means for preventing back-rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU76025/74A AU488121B2 (en) 1974-12-03 1974-12-03 Means for preventing back-rotation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU24714/71A Division AU467031B2 (en) 1970-02-03 1971-01-27 Method and apparatus for anchoring rock bolts

Publications (2)

Publication Number Publication Date
AU488121B2 true AU488121B2 (en) 1975-03-20
AU7602574A AU7602574A (en) 1975-03-20

Family

ID=3757210

Family Applications (1)

Application Number Title Priority Date Filing Date
AU76025/74A Expired AU488121B2 (en) 1974-12-03 1974-12-03 Means for preventing back-rotation

Country Status (1)

Country Link
AU (1) AU488121B2 (en)

Also Published As

Publication number Publication date
AU7602574A (en) 1975-03-20

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