GB976923A - Improvements in or relating to mine arches - Google Patents
Improvements in or relating to mine archesInfo
- Publication number
- GB976923A GB976923A GB74063A GB74063A GB976923A GB 976923 A GB976923 A GB 976923A GB 74063 A GB74063 A GB 74063A GB 74063 A GB74063 A GB 74063A GB 976923 A GB976923 A GB 976923A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strap
- cross
- jan
- relating
- arch
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
976,923. Yielding mine arch supports. UNION SIDEBURGIQUE DU NORD DE LA FRANCE. Jan. 7, 1963 [Jan. 8, 1962], No. 740/63. Heading E1E. In a yielding mine arch support wherein the arch segments A, B are clamped together by a U-shape strap C bolted to a flat cross-member D, the strap and cross-member are both provided with means such as recess means 5, Fig. 3, for positioning purposes and the member D has inclined surfaces 8 adapted during movement to repel wall lagging members P instead of entraining them. For slightly modified shapes of strap, cross-member and bolt heads, Figs. 5 -- 12 (not shown) should be referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR884185A FR1318692A (en) | 1962-01-08 | 1962-01-08 | Advanced device for assembling mine frame elements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB976923A true GB976923A (en) | 1964-12-02 |
Family
ID=8770094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB74063A Expired GB976923A (en) | 1962-01-08 | 1963-01-07 | Improvements in or relating to mine arches |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1318692A (en) |
GB (1) | GB976923A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3395542A (en) * | 1965-03-04 | 1968-08-06 | Forges Et Ateliers De La Nave | Propping frame for mining galleries |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2850350A1 (en) * | 1978-11-20 | 1980-05-22 | Hoesch Werke Ag | FLAP FOR A CLAMP CONNECTION IN THE FLEXIBLE LINE EXTENSION |
-
1962
- 1962-01-08 FR FR884185A patent/FR1318692A/en not_active Expired
-
1963
- 1963-01-07 GB GB74063A patent/GB976923A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3395542A (en) * | 1965-03-04 | 1968-08-06 | Forges Et Ateliers De La Nave | Propping frame for mining galleries |
Also Published As
Publication number | Publication date |
---|---|
FR1318692A (en) | 1963-02-22 |
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