GB404174A - Improved connection of the steel or iron bows in timbering underground-workings - Google Patents
Improved connection of the steel or iron bows in timbering underground-workingsInfo
- Publication number
- GB404174A GB404174A GB9939/33A GB993933A GB404174A GB 404174 A GB404174 A GB 404174A GB 9939/33 A GB9939/33 A GB 9939/33A GB 993933 A GB993933 A GB 993933A GB 404174 A GB404174 A GB 404174A
- Authority
- GB
- United Kingdom
- Prior art keywords
- timbering
- bows
- workings
- underground
- iron
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- 229910000831 Steel Inorganic materials 0.000 title 1
- 229910052742 iron Inorganic materials 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
- 238000005452 bending Methods 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)
- Lining And Supports For Tunnels (AREA)
Abstract
404,174. Mine supports. BACHMANN, G., 29, Hildegardstrasse, Bochum, Germany. April 3, 1933, No. 9939. Convention date, April 4, 1932. [Class 20 (ii).] Arcuate mine gallery supports are provided with end caps which bear on each other and are suitably fastened together. The caps 3 may be of angle section protruding on each side of the arcuate members 1, 2, and secured together by bolts 4 passing through the abutting flanges. Cushioning material may be placed between the cap flanges. The caps may be formed by bending down one of the flanges of the arcuate member over the web and other flange and so as to protrude beyond the other flange.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE404174X | 1932-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404174A true GB404174A (en) | 1934-01-11 |
Family
ID=6421414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9939/33A Expired GB404174A (en) | 1932-04-04 | 1933-04-03 | Improved connection of the steel or iron bows in timbering underground-workings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404174A (en) |
-
1933
- 1933-04-03 GB GB9939/33A patent/GB404174A/en not_active Expired
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