GB1358541A - Mine roof supports - Google Patents
Mine roof supportsInfo
- Publication number
- GB1358541A GB1358541A GB4692970A GB4692970A GB1358541A GB 1358541 A GB1358541 A GB 1358541A GB 4692970 A GB4692970 A GB 4692970A GB 4692970 A GB4692970 A GB 4692970A GB 1358541 A GB1358541 A GB 1358541A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- mine roof
- jack
- base
- 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
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 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)
- Tents Or Canopies (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
1358541 Mine roof support assemblies DOWTY MINING EQUIPMENT Ltd 10 Sept 1971 [2 Oct 1970] 46929/70 Heading E1P In a mine roof support assembly comprising a base 11 with a lever 14 pivotally mounted thereon and adjustable thereabout by a pair of jacks 15, the lever is provided with a jack 16, 17 and a roof canopy 19 is pivotally connected to the member 16 by a pivot 18 and a jack 21 for tilting same into contact with the mine roof; on advancing jack 23 also being provided, if desired. In a modification, see Fig. 3 (not shown), the roof canopy is pivotally connected to the base by a lever of fixed length, is pivoted about the lever by a slightly modified jacking arrangement and has a shield pivotally mounted thereon to rest against the lever.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4692970A GB1358541A (en) | 1970-10-02 | 1970-10-02 | Mine roof supports |
DE19712147803 DE2147803A1 (en) | 1970-10-02 | 1971-09-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4692970A GB1358541A (en) | 1970-10-02 | 1970-10-02 | Mine roof supports |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1358541A true GB1358541A (en) | 1974-07-03 |
Family
ID=10443109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4692970A Expired GB1358541A (en) | 1970-10-02 | 1970-10-02 | Mine roof supports |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2147803A1 (en) |
GB (1) | GB1358541A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073149A (en) * | 1974-12-18 | 1978-02-14 | Gewerkschaft Eisenhutte Westfalia | Mine roof support assemblies |
US4094155A (en) * | 1976-02-03 | 1978-06-13 | Bochumer Eisenhutte Heintzmann Gmbh & Co. | Mine roof support |
US4140430A (en) * | 1977-05-05 | 1979-02-20 | Bochumer Eisenhutte Heintzmann Gmbh & Co | Walking mine roof support |
GB2191236A (en) * | 1986-06-04 | 1987-12-09 | Gullick Dobson Ltd | Movable hydraulic jacks on mine roof support |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2320960C3 (en) * | 1973-04-26 | 1981-08-06 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Shield support frame |
DE2447429A1 (en) * | 1974-07-02 | 1976-04-08 | Johannes Winkler | Mine shield support with roofbar - roofbar forepoled off telescopic powered beam with joint on waste shield |
DE2644649C3 (en) * | 1976-10-02 | 1986-11-13 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Shield support frame |
-
1970
- 1970-10-02 GB GB4692970A patent/GB1358541A/en not_active Expired
-
1971
- 1971-09-24 DE DE19712147803 patent/DE2147803A1/de active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073149A (en) * | 1974-12-18 | 1978-02-14 | Gewerkschaft Eisenhutte Westfalia | Mine roof support assemblies |
US4094155A (en) * | 1976-02-03 | 1978-06-13 | Bochumer Eisenhutte Heintzmann Gmbh & Co. | Mine roof support |
US4140430A (en) * | 1977-05-05 | 1979-02-20 | Bochumer Eisenhutte Heintzmann Gmbh & Co | Walking mine roof support |
GB2191236A (en) * | 1986-06-04 | 1987-12-09 | Gullick Dobson Ltd | Movable hydraulic jacks on mine roof support |
US4797023A (en) * | 1986-06-04 | 1989-01-10 | Gullick Dobson Limited | Mine roof supports |
GB2191236B (en) * | 1986-06-04 | 1990-04-04 | Gullick Dobson Ltd | Mine roof supports |
Also Published As
Publication number | Publication date |
---|---|
DE2147803A1 (en) | 1972-06-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |