GB805346A - Clamping means for sliding arch support frames for mines - Google Patents
Clamping means for sliding arch support frames for minesInfo
- Publication number
- GB805346A GB805346A GB39092/56A GB3909256A GB805346A GB 805346 A GB805346 A GB 805346A GB 39092/56 A GB39092/56 A GB 39092/56A GB 3909256 A GB3909256 A GB 3909256A GB 805346 A GB805346 A GB 805346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mines
- clamping means
- support frames
- degrees
- arch support
- 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
- 238000005452 bending Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 235000000396 iron Nutrition 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
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)
Abstract
805,346. Arch supports for mine roofs. BERGAUSTAHL, G. m.b. H. Dec. 21, 1956 [Jan. 4, 1956, Oct. 23, 1956], No. 39092/56. Class 20(2) Mine arch frames consisting of overlapping curved channel section irons 1, 2 are secured by a clamp comprising a half shackle 3 fitted about the bottom of the outer section and associated damping means 10 inclined at an angle of more than 30 degrees, preferably 45 degrees to the channel bottom with a recess 13 for engaging over the end of the inner section. Additional stirrup bolts 10<SP>1</SP> may be added. Bolt 10 may be replaced by a pair of hooked bolts as illcstrated in Fig .3 (not shown). The half shackle 3 can be produced by bending and boring a piece of sheet metal of the shape disclosed in Fig. 5 (not shown). A guide ring may be provided at the overlap of the sections.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE805346X | 1956-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB805346A true GB805346A (en) | 1958-12-03 |
Family
ID=6722317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39092/56A Expired GB805346A (en) | 1956-01-04 | 1956-12-21 | Clamping means for sliding arch support frames for mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB805346A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129030A (en) * | 1982-10-23 | 1984-05-10 | Arbed Techno Gmbh | Mine roof support clamp |
-
1956
- 1956-12-21 GB GB39092/56A patent/GB805346A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129030A (en) * | 1982-10-23 | 1984-05-10 | Arbed Techno Gmbh | Mine roof support clamp |
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