ES270971A2 - Anchorage device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding) - Google Patents
Anchorage device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES270971A2 ES270971A2 ES270971A ES270971A ES270971A2 ES 270971 A2 ES270971 A2 ES 270971A2 ES 270971 A ES270971 A ES 270971A ES 270971 A ES270971 A ES 270971A ES 270971 A2 ES270971 A2 ES 270971A2
- Authority
- ES
- Spain
- Prior art keywords
- sleeve
- ramps
- translation
- legally binding
- *** translate
- 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 1
- 230000000295 complement effect Effects 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
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)
- Dowels (AREA)
Abstract
Improvements introduced in the object of the main patent no. 267. 131 by anchoring device, especially for roof bolts of underground galleries, which has an expandable sleeve formed by two half shells inside of which are made ramps that cooperate with wedges made on a rod inserted axially in the sleeve, these wedges and ramps being shaped so that, in the final expansion position, the shells of the sleeve are further separated in their upper part that tilts towards the outside giving the sleeve the shape of a v, characterized in that each of the two semi-shells forming the sleeve has a single middle ramp extending from the upper edge to the vicinity of the lower edge of the shell and having a convex profile of large radius in longitudinal section. Of curvature, for example circular, while the end of the stem is crushed in the form of a nail that presents in its edges a concave profile complementary to that of the ramps. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR868935A FR80143E (en) | 1961-07-25 | 1961-07-25 | Anchoring device, in particular for roof bolts of underground galleries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES270971A2 true ES270971A2 (en) | 1962-03-16 |
Family
ID=8760005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES270971A Expired ES270971A2 (en) | 1961-07-25 | 1961-10-06 | Anchorage device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding) |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES270971A2 (en) |
| FR (1) | FR80143E (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3334363A (en) * | 1964-02-24 | 1967-08-08 | Monsanto Co | Sleeping bag |
| US3448651A (en) * | 1967-06-02 | 1969-06-10 | Usm Corp | Expansion bolts |
-
1961
- 1961-07-25 FR FR868935A patent/FR80143E/en not_active Expired
- 1961-10-06 ES ES270971A patent/ES270971A2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR80143E (en) | 1963-03-15 |
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