GB1026965A - Advanceable roof supports suitable for use in mines - Google Patents
Advanceable roof supports suitable for use in minesInfo
- Publication number
- GB1026965A GB1026965A GB2327163A GB2327163A GB1026965A GB 1026965 A GB1026965 A GB 1026965A GB 2327163 A GB2327163 A GB 2327163A GB 2327163 A GB2327163 A GB 2327163A GB 1026965 A GB1026965 A GB 1026965A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- props
- conveyer
- june
- 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
- 241001247986 Calotropis procera Species 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 230000000717 retained effect Effects 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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
-
- 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
- E21D23/0418—Positioning devices and stabilizing means for the props
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
1,026,965. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. June 8, 1964 [June 11, 1963; March 7, 1963], Nos. 23271/63 and 43962/63. Heading E1E. A mine roof support frame comprises four hydraulic props 3 loosely seated in two transverse floor beams 14 and in two longitudinal roof bars 11, the props being connected by resilient strips 6, 6, 8, 9 secured to a clamp 7 on the lower part 5 of each prop. Each prop is retained in its floor beam socket 14 by a chain 17, and in its roof bar socket 12 by a bolt 32 and rubber bush 33 which allows limited angular movement of the prop. The frame is advanced relatively to a conveyer 36 by two jacks 30 pivoted lugs 41 on the front or rear props, and is located laterally by co-operating guides 42, 43 on the frame and conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2327163A GB1026965A (en) | 1963-06-11 | 1963-06-11 | Advanceable roof supports suitable for use in mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2327163A GB1026965A (en) | 1963-06-11 | 1963-06-11 | Advanceable roof supports suitable for use in mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1026965A true GB1026965A (en) | 1966-04-20 |
Family
ID=10192978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2327163A Expired GB1026965A (en) | 1963-06-11 | 1963-06-11 | Advanceable roof supports suitable for use in mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1026965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525227A (en) * | 1967-07-19 | 1970-08-25 | Gullick Ltd | Mine roof supports |
-
1963
- 1963-06-11 GB GB2327163A patent/GB1026965A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525227A (en) * | 1967-07-19 | 1970-08-25 | Gullick Ltd | Mine roof supports |
| DE1758675B1 (en) * | 1967-07-19 | 1972-05-31 | Gullick Ltd | Migrating hydraulic longwall mining |
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