GB880090A - Improvements in or relating to hinged supports for mine galleries - Google Patents
Improvements in or relating to hinged supports for mine galleriesInfo
- Publication number
- GB880090A GB880090A GB2194760A GB2194760A GB880090A GB 880090 A GB880090 A GB 880090A GB 2194760 A GB2194760 A GB 2194760A GB 2194760 A GB2194760 A GB 2194760A GB 880090 A GB880090 A GB 880090A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- secured
- arm
- mine
- relating
- 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
- 238000005452 bending Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification 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
- E21D11/24—Knuckle joints or links between arch members
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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)
- Actuator (AREA)
- Tents Or Canopies (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
880,090. Mine arches. PAURAT, F. W. June 23, 1960, No. 21947/60. Addition to 871,054. Class 20(2) In a hinged support for mine arches comprising two beams 1, 2 hinged together by a guide stay 5 having an arm 5a secured to an arm 1a of the first beam by a bolt 6 disposed parallel to the pivot 3, an operating device such as a fluid operated plunger 7b is provided for effecting relative movement between the two arms in order to facilitate withdrawal of the bolt under beam bending conditions and to move the pivot end of the first beam inwardly of the mine roof. Connected to the cylinder 7 of the plunger is a tie member 13 having a safety link 14 which moves the stay 5 in the opposite direction to that of the plunger when reverse beam bending conditions apply. In a modification the tie member is constituted by a flexible member which is secured to the arm 5a, passes over a pulley and is secured to the plunger 7b, see Fig. 5 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2194760A GB880090A (en) | 1960-06-23 | 1960-06-23 | Improvements in or relating to hinged supports for mine galleries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2194760A GB880090A (en) | 1960-06-23 | 1960-06-23 | Improvements in or relating to hinged supports for mine galleries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB880090A true GB880090A (en) | 1961-10-18 |
Family
ID=10171444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2194760A Expired GB880090A (en) | 1960-06-23 | 1960-06-23 | Improvements in or relating to hinged supports for mine galleries |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB880090A (en) |
-
1960
- 1960-06-23 GB GB2194760A patent/GB880090A/en not_active Expired
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