GB739164A - Improvements in or relating to flexible clamping devices for mine roof and like supports - Google Patents
Improvements in or relating to flexible clamping devices for mine roof and like supportsInfo
- Publication number
- GB739164A GB739164A GB28375/52A GB2837552A GB739164A GB 739164 A GB739164 A GB 739164A GB 28375/52 A GB28375/52 A GB 28375/52A GB 2837552 A GB2837552 A GB 2837552A GB 739164 A GB739164 A GB 739164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nov
- clamp
- supports
- piece
- mine
- 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 abstract 4
- 238000005452 bending Methods 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 238000005242 forging 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)
- Clamps And Clips (AREA)
Abstract
739,164. Arch supports for mine galleries. LINSINGEN, M. VON, [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. Nov. 11, 1952 [Nov. 17, 1951], No. 28375/52. Addition to 685,477. Class 20 (2). [Also in Group XXII] The clamping device for mine arch supports described in the parent Specification is modified in that the strop 6, Figs. 3, 4, is shaped from a piece of hoop iron, the ends of which are folded to form the thickened flanges 9. The folded flange portions may be flat or, as shown, arched transversely and edge welded to the flange portions below to provide spring action to the clamp. The clamp is coupled by a bevelled portion 8a to the end of the inner arch member 1 so as to move with it under roof pressure. The piece of hoop iron is given a preliminary bending in the cold state, and the bending is completed and bolt holes punched in the flanges in a die under hot forging.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE739164X | 1951-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB739164A true GB739164A (en) | 1955-10-26 |
Family
ID=6642977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28375/52A Expired GB739164A (en) | 1951-11-17 | 1952-11-11 | Improvements in or relating to flexible clamping devices for mine roof and like supports |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB739164A (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 |
-
1952
- 1952-11-11 GB GB28375/52A patent/GB739164A/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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