GB754103A - Improvements in mine roof supporting archways - Google Patents
Improvements in mine roof supporting archwaysInfo
- Publication number
- GB754103A GB754103A GB19711/51A GB1971151A GB754103A GB 754103 A GB754103 A GB 754103A GB 19711/51 A GB19711/51 A GB 19711/51A GB 1971151 A GB1971151 A GB 1971151A GB 754103 A GB754103 A GB 754103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- runner
- sleeve
- mine
- arch member
- mine roof
- 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
- 239000002184 metal Substances 0.000 abstract 1
- 230000035515 penetration Effects 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
- E21D11/183—Supporting means for arch members, not provided for in E21D11/22
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
754,103. Arches for supporting mine roofs. MOLL, F. W. [trading as MOLL SOHNE MASCHINENFABRIK, F. W.]. May 31. 1951 [Aug. 26, 1950], No. 19711/51. Divided out of and addition to 738,484. Class 20(2). The mine arch of the parent Specification is modified by disposing the brake sleeve 8, through which the arch member 1 slides in a recess 25 in a runner 13 and the sleeve has curved projections 20a at each side supporting it on the runner and allowing angular movement of the arch member. The wooden wedges 10 engage metal wedges 26 the penetration of which due to mine roof load, into the sleeve 8 is stopped by projections 29 and the wooden wedges finally engage stops 30. Further movement of the arch member causes it to pierce the part 31 of the runner.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL754103X | 1950-08-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB754103A true GB754103A (en) | 1956-08-01 |
Family
ID=19825222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19711/51A Expired GB754103A (en) | 1950-08-26 | 1951-05-31 | Improvements in mine roof supporting archways |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB754103A (en) |
-
1951
- 1951-05-31 GB GB19711/51A patent/GB754103A/en not_active Expired
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