GB457122A - Improvements in and relating to roof supports for mines - Google Patents
Improvements in and relating to roof supports for minesInfo
- Publication number
- GB457122A GB457122A GB1488835A GB1488835A GB457122A GB 457122 A GB457122 A GB 457122A GB 1488835 A GB1488835 A GB 1488835A GB 1488835 A GB1488835 A GB 1488835A GB 457122 A GB457122 A GB 457122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supports
- support
- members
- end portions
- articulated
- 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
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 210000005069 ears Anatomy 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
457,122. Mine-roof supports. SYLVESTER, W., Hoston House, Pinnox Street, Tunstall, Staffordshire. May 22, 1935, No. 14888. [Class 20 (ii)] A mine-roof support comprises an articulated member with joints near its ends and a pit-prop at each end to support the end portions of the articulated member. The end portions of the articulated member a may be constituted by blocks or cap members b supported by the props d, the member a being formed of corrugated steel of channel section and being detachably connected at its ends to the blocks. Removal of one shore allows the support to pivot about its other end and so prevent bending of the support. Supports may be disposed in rectangular formation, the members b being formed with sets of ears b<1> on each face and one end of opposite supports being hooked to pins b<2> carried by the ears on opposite faces. Further supports g may be carried at the centres of the main roof supports. In a modification, the end portions of the articulated members may be formed of short corrugated channel section bars. The support members a may in addition be hinged at other points than near the ends. The Provisional Specification states also that when the supports are disposed in rectangular formation, only two of the bars may be hinged and the other two may be formed of wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1488835A GB457122A (en) | 1935-05-22 | 1935-05-22 | Improvements in and relating to roof supports for mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1488835A GB457122A (en) | 1935-05-22 | 1935-05-22 | Improvements in and relating to roof supports for mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB457122A true GB457122A (en) | 1936-11-23 |
Family
ID=10049304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1488835A Expired GB457122A (en) | 1935-05-22 | 1935-05-22 | Improvements in and relating to roof supports for mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB457122A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE919166C (en) * | 1949-09-28 | 1954-10-14 | Dipl Berging Karl Maria Groets | Device for stamp-free pre-joining a cap |
| US2711634A (en) * | 1949-05-25 | 1955-06-28 | Joy Mfg Co | Mine roof supporting means |
| US2714505A (en) * | 1948-05-01 | 1955-08-02 | Joy Mfg Co | Apparatus for mine roof control |
| DE943401C (en) * | 1950-08-01 | 1956-05-17 | Alexander Schmidt Dr Ing | Longwall mining |
| DE973479C (en) * | 1948-06-04 | 1960-03-03 | August Dipl-Ing Fischer | Buttress connection |
| DE974902C (en) * | 1948-10-02 | 1961-05-31 | Bochumer Eisen Heintzmann | Cap hinge connection |
-
1935
- 1935-05-22 GB GB1488835A patent/GB457122A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2714505A (en) * | 1948-05-01 | 1955-08-02 | Joy Mfg Co | Apparatus for mine roof control |
| DE973479C (en) * | 1948-06-04 | 1960-03-03 | August Dipl-Ing Fischer | Buttress connection |
| DE974902C (en) * | 1948-10-02 | 1961-05-31 | Bochumer Eisen Heintzmann | Cap hinge connection |
| US2711634A (en) * | 1949-05-25 | 1955-06-28 | Joy Mfg Co | Mine roof supporting means |
| DE919166C (en) * | 1949-09-28 | 1954-10-14 | Dipl Berging Karl Maria Groets | Device for stamp-free pre-joining a cap |
| DE943401C (en) * | 1950-08-01 | 1956-05-17 | Alexander Schmidt Dr Ing | Longwall mining |
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