GB1020865A - Improvements in anchor bolts - Google Patents

Improvements in anchor bolts

Info

Publication number
GB1020865A
GB1020865A GB2163461A GB2163461A GB1020865A GB 1020865 A GB1020865 A GB 1020865A GB 2163461 A GB2163461 A GB 2163461A GB 2163461 A GB2163461 A GB 2163461A GB 1020865 A GB1020865 A GB 1020865A
Authority
GB
United Kingdom
Prior art keywords
rod
tube
nut
june
welded
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
GB2163461A
Inventor
James Wilkinson
Thomas Mcallister
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.)
Coal Industry (Patents) Ltd
Original Assignee
Coal Industry (Patents) 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 Coal Industry (Patents) Ltd filed Critical Coal Industry (Patents) Ltd
Priority to GB2163461A priority Critical patent/GB1020865A/en
Publication of GB1020865A publication Critical patent/GB1020865A/en
Application status is Expired legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008Anchoring or tensioning means
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube

Abstract

1,020,865. Bolts; nuts; screw-sockets; locking nuts. COAL INDUSTRY (PATENTS) Ltd. June 8, 1962 [June 15, 1961], No. 21634/61. Heading F2H. A bolt, for anchoring in a bore-hole in an underground mine, has a rod 3 and a shorter tube 1 from which the rod therefore protrudes, the insertable end of the rod bearing a wedgenut 6 so that when the rod is rotated in one direction, the nut is moved towards the tube 1 to spread two anchoring jaws 10 pivoted to the tube at 12. The nut 6 has two opposed partcylindrical and converging sides 5 and two opposed parallel sides 7, Figs. 4, 5 (not shown), with wedge-shaped projections 8 with converging edges for co-action with correspondingly formed edges at the mouth of the jaws 10. A circular thrust plate 17 bearing a smaller plate 18 is welded to the outer end of the tube 1 and on either side of these plates a sleeve 19 and a nut 20 are secured by pins 19a, 20a (the latter being tapered) to the rod 3 to prevent relative axial movement between the rod 3 and tube 1. A handle 21 is welded to the locked nut 20.
GB2163461A 1961-06-15 1961-06-15 Improvements in anchor bolts Expired GB1020865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2163461A GB1020865A (en) 1961-06-15 1961-06-15 Improvements in anchor bolts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2163461A GB1020865A (en) 1961-06-15 1961-06-15 Improvements in anchor bolts

Publications (1)

Publication Number Publication Date
GB1020865A true GB1020865A (en) 1966-02-23

Family

ID=10166232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2163461A Expired GB1020865A (en) 1961-06-15 1961-06-15 Improvements in anchor bolts

Country Status (1)

Country Link
GB (1) GB1020865A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004461A1 (en) * 1981-06-19 1982-12-23 Frischmann Albert Anchoring bolt
US4650384A (en) * 1982-04-16 1987-03-17 Mcintyre Douglas O Expansion anchor
US4770581A (en) * 1984-03-01 1988-09-13 Dom Holdings Plc Expansion anchor
GB2316728A (en) * 1996-08-27 1998-03-04 Wu Ming Hsin Expanding wall plug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004461A1 (en) * 1981-06-19 1982-12-23 Frischmann Albert Anchoring bolt
EP0068227A1 (en) * 1981-06-19 1983-01-05 UPAT GMBH & CO Anchor bolt
US4650384A (en) * 1982-04-16 1987-03-17 Mcintyre Douglas O Expansion anchor
US4770581A (en) * 1984-03-01 1988-09-13 Dom Holdings Plc Expansion anchor
GB2316728A (en) * 1996-08-27 1998-03-04 Wu Ming Hsin Expanding wall plug

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