GB1020865A - Improvements in anchor bolts - Google Patents
Improvements in anchor boltsInfo
- 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
Links
- 238000004873 anchoring Methods 0.000 abstract 2
- 239000003245 coal Substances 0.000 abstract 1
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
- E21D21/008—Anchoring or tensioning means
-
- 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
- E21D21/0033—Anchoring-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
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)
- Lining And Supports For Tunnels (AREA)
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.
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 (5)
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 |
EP4257795A1 (en) * | 2022-04-08 | 2023-10-11 | Sandvik Mining and Construction Australia (Production/Supply) Pty Ltd | A rock bolt |
-
1961
- 1961-06-15 GB GB2163461A patent/GB1020865A/en not_active Expired
Cited By (6)
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 |
EP4257795A1 (en) * | 2022-04-08 | 2023-10-11 | Sandvik Mining and Construction Australia (Production/Supply) Pty Ltd | A rock bolt |
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