GB688620A - Improvements in or relating to girder structures for mines - Google Patents
Improvements in or relating to girder structures for minesInfo
- Publication number
- GB688620A GB688620A GB15539/49A GB1553949A GB688620A GB 688620 A GB688620 A GB 688620A GB 15539/49 A GB15539/49 A GB 15539/49A GB 1553949 A GB1553949 A GB 1553949A GB 688620 A GB688620 A GB 688620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clamp
- distance piece
- distance
- guided
- integral
- 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)
- Tents Or Canopies (AREA)
Abstract
688,620. Mine roof supports. LINSINGEN, M. VON [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. June 10, 1949 [Oct. 1, 1948], No. 15539/49. Class 20(ii) In an arched mine roof supporting structure comprising curved overlapping members 1 of identical flanged channel crosssection clamped together to allow sliding movement under roof pressure, distance pieces 6 between the flanges 2 are guided by the clamp. The distance piece may be connected to either part 4 or 5 of the clamp by a resilient bar 7 integral with the clamp and in Fig. 1 the clamping bolt is integral with the clamp part 5. The spring bow may be a separate part. In Fig. 6 the distance pieces 6 slide on the bolts 9 and have a leg 6a guided by a recess 5 in the clamp part 8. A split spring ring 10 prevents the distance piece 6 and bolt 9 separating. The distance piece 6 may be pivoted to the clamp part 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR688620X | 1948-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB688620A true GB688620A (en) | 1953-03-11 |
Family
ID=9026828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15539/49A Expired GB688620A (en) | 1948-10-01 | 1949-06-10 | Improvements in or relating to girder structures for mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB688620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1124901B (en) * | 1953-07-04 | 1962-03-08 | Steinkohlenbergwerk Friedrich | Compression-compliant connection for the nested profiles in the case of track expansion frames made of channel profiles |
| FR2297993A1 (en) * | 1975-01-15 | 1976-08-13 | Bochumer Eisen Heintzmann | PROCEDURE FOR ASSEM |
-
1949
- 1949-06-10 GB GB15539/49A patent/GB688620A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1124901B (en) * | 1953-07-04 | 1962-03-08 | Steinkohlenbergwerk Friedrich | Compression-compliant connection for the nested profiles in the case of track expansion frames made of channel profiles |
| FR2297993A1 (en) * | 1975-01-15 | 1976-08-13 | Bochumer Eisen Heintzmann | PROCEDURE FOR ASSEM |
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