GB1013470A - Roof supports suitable for use in mines - Google Patents
Roof supports suitable for use in minesInfo
- Publication number
- GB1013470A GB1013470A GB1359163A GB1359163A GB1013470A GB 1013470 A GB1013470 A GB 1013470A GB 1359163 A GB1359163 A GB 1359163A GB 1359163 A GB1359163 A GB 1359163A GB 1013470 A GB1013470 A GB 1013470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bar
- fin
- plate
- roof supports
- april
- 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
- 238000005065 mining Methods 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
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Framework For Endless Conveyors (AREA)
Abstract
1,013,470. Mine roof supports. DOWTY MINING EQUIPMENT Ltd. April 2, 1964 [April 5, 1963], No. 13591/63. Heading E1E. In an advancing mine roof support comprising props 2 on a floor bar 1 connected to a conveyer 5 by a jack 10, the bar 1 carries a fin 17 which digs into the ground as the support advances, thereby preventing lateral movement. The fin 17 is bolted to a plate 16 welded to a plate 14 biased downwardly by springs 15, the plate 16 having a number of bolt holes enabling the angle of the rib 17 to the bar 1 to be adjusted. In a modification, Figs. 1-3 (not shown) the fin is rigid with and central of the bar 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1359163A GB1013470A (en) | 1963-04-05 | 1963-04-05 | Roof supports suitable for use in mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1359163A GB1013470A (en) | 1963-04-05 | 1963-04-05 | Roof supports suitable for use in mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1013470A true GB1013470A (en) | 1965-12-15 |
Family
ID=10025766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1359163A Expired GB1013470A (en) | 1963-04-05 | 1963-04-05 | Roof supports suitable for use in mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1013470A (en) |
-
1963
- 1963-04-05 GB GB1359163A patent/GB1013470A/en not_active Expired
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