GB1067369A - Roof support assembly suitable for use in mines - Google Patents
Roof support assembly suitable for use in minesInfo
- Publication number
- GB1067369A GB1067369A GB3222964A GB3222964A GB1067369A GB 1067369 A GB1067369 A GB 1067369A GB 3222964 A GB3222964 A GB 3222964A GB 3222964 A GB3222964 A GB 3222964A GB 1067369 A GB1067369 A GB 1067369A
- Authority
- GB
- United Kingdom
- Prior art keywords
- buffers
- advancing
- frames
- mines
- mine roof
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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
1,067,369. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Nov. 3, 1965 [Aug. 7, 1964], No. 32229/64. Heading E1E. Advancing mine roof supports, especially suitable for sloping floor work, comprise frames 1 advancing in parallel and spaced apart by pre-compressed buffers e.g. 9 which are maintained in their stressed state whether loaded externally or not, but which are capable of sustaining further compression. The buffers may comprise resilient metal strips 12 (as shown) each held in a U-shape by an adjustable screw 14 passing through a lug 13 and acting against a bracket 15, or alternatively may incorporate coil spring. The buffers may be arranged on the base frames, as shown, or may be attached to roof-engaging members. The base frames 1, each carrying five props, in two parallel rows, one of three and one of two, are connected to conveyer 2 by fluid-pressureoperated jack 10, (Fig. 1, not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3222964A GB1067369A (en) | 1964-08-07 | 1964-08-07 | Roof support assembly suitable for use in mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3222964A GB1067369A (en) | 1964-08-07 | 1964-08-07 | Roof support assembly suitable for use in mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1067369A true GB1067369A (en) | 1967-05-03 |
Family
ID=10335315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3222964A Expired GB1067369A (en) | 1964-08-07 | 1964-08-07 | Roof support assembly suitable for use in mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1067369A (en) |
-
1964
- 1964-08-07 GB GB3222964A patent/GB1067369A/en not_active Expired
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