GB449967A - Improved means for supporting roofs of mines and other underground roadways - Google Patents
Improved means for supporting roofs of mines and other underground roadwaysInfo
- Publication number
- GB449967A GB449967A GB5545/35A GB554535A GB449967A GB 449967 A GB449967 A GB 449967A GB 5545/35 A GB5545/35 A GB 5545/35A GB 554535 A GB554535 A GB 554535A GB 449967 A GB449967 A GB 449967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projections
- mine
- prop
- props
- bearers
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
-
- 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)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
449,967. Mine roof supports. STEWARTS & LLOYDS, Ltd., 41, Oswald Street, Glasgow. Feb. 21, 1935, No. 5545. Convention date, Aug. 29, 1934. [Class 20 (ii)] A mine-prop or roof-support comprises telescopic tubular metal members, the outer member being provided with internal projections which contact with the end of the internal member and offer resistance to its movement under load. The end of the inner tubular member 21 is inturned and normally rests on projections 27 carried by a clamping ring 24 which encircles the outer prop-member 22, the projections passing through holes in the wall of the outer prop-member. Relative longitudinal movement between the propmembers under load results in grooves being formed in the inner member by the projections. Alternatively, the projections may be directly fixed in the wall of the outer member and more than one set of projections may be provided. For mine roofs a cambered bar 20 supports bearers E and is fixed at each end to the recessed end 25 of an inner propmember, further bearers being interposed between the props and the walls of the tunnels ; the props give when the load on the cambered bar exceeds a predetermined amount.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE449967X | 1911-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB449967A true GB449967A (en) | 1936-07-08 |
Family
ID=6538339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5545/35A Expired GB449967A (en) | 1934-08-29 | 1935-02-21 | Improved means for supporting roofs of mines and other underground roadways |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR449967A (en) |
| GB (1) | GB449967A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE746071C (en) * | 1935-06-04 | 1944-05-26 | Oscar Fisher | Arched extension frame for mines |
| DE1007273B (en) * | 1954-11-17 | 1957-05-02 | Wilhelm Langerbein | Expansion for pits, water galleries, tunnels, etc. |
| DE1075071B (en) * | 1960-02-11 | |||
| US3678693A (en) * | 1969-06-03 | 1972-07-25 | Huennebeck Gmbh | Tunnel formwork |
| GB2445847A (en) * | 2007-01-18 | 2008-07-23 | Mmtt | Telescopic barrier assembly for tunnel walls |
| CN110295923A (en) * | 2019-08-14 | 2019-10-01 | 赤峰柴胡栏子黄金矿业有限公司 | Suspension device and method for protecting support for studding filling method back production under metalliferous mine |
-
1912
- 1912-10-29 FR FR449967D patent/FR449967A/en not_active Expired
-
1935
- 1935-02-21 GB GB5545/35A patent/GB449967A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075071B (en) * | 1960-02-11 | |||
| DE746071C (en) * | 1935-06-04 | 1944-05-26 | Oscar Fisher | Arched extension frame for mines |
| DE1007273B (en) * | 1954-11-17 | 1957-05-02 | Wilhelm Langerbein | Expansion for pits, water galleries, tunnels, etc. |
| US3678693A (en) * | 1969-06-03 | 1972-07-25 | Huennebeck Gmbh | Tunnel formwork |
| GB2445847A (en) * | 2007-01-18 | 2008-07-23 | Mmtt | Telescopic barrier assembly for tunnel walls |
| GB2445847B (en) * | 2007-01-18 | 2011-12-28 | Mmtt Steel Products Ltd | Variable height barrier assembly for tunnel walls |
| CN110295923A (en) * | 2019-08-14 | 2019-10-01 | 赤峰柴胡栏子黄金矿业有限公司 | Suspension device and method for protecting support for studding filling method back production under metalliferous mine |
| CN110295923B (en) * | 2019-08-14 | 2023-08-22 | 赤峰柴胡栏子黄金矿业有限公司 | Supporting device and supporting method for stoping of underground pillar filling method of metal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR449967A (en) | 1913-03-12 |
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