GB1517763A - Underground mine roof support - Google Patents
Underground mine roof supportInfo
- Publication number
- GB1517763A GB1517763A GB2738975A GB2738975A GB1517763A GB 1517763 A GB1517763 A GB 1517763A GB 2738975 A GB2738975 A GB 2738975A GB 2738975 A GB2738975 A GB 2738975A GB 1517763 A GB1517763 A GB 1517763A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roof girder
- link piece
- base
- roof
- linkage
- 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 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
- E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
-
- 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
-
- 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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
1517763 Mine roof support chocks J WINKLER 27 June 1975 [2 July 1974 11 Sept 1974 4 Oct 1974] 27389/75 Heading E1P A mine roof support chock comprises a base 11, a roof girder 13, a linkage by which the roof girder is linked to the base, a goaf shield 12, and a ram 16 for raising the roof girder, and is characterised in that the goaf shield forms part of the linkage which includes a link piece 14, by which the roof girder 13 is engaged or to which it is connected for limited angular motion in a vertical plane, either the roof girder being capable of limited motion relative to the link piece which is fixed in inclination relative to the base, or the roof girder being fixed to the link piece which is capable of limited angular motion relative to the base. The linkage may include pivot points which allow lost motion and are biassed by springs, Fig. 3, and the length of a link rod may be variable. The roof girder may be connected to the link piece by a movable component slidable in or on the link piece which may be tubular, Fig. 10.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742431740 DE2431740B2 (en) | 1974-07-02 | 1974-07-02 | Shield support for underground mining |
DE2443460A DE2443460A1 (en) | 1974-09-11 | 1974-09-11 | Mine shield support system - has roofbar held parallel to floor bar at all heights by kinetic linkage |
DE19742447429 DE2447429A1 (en) | 1974-07-02 | 1974-10-04 | Mine shield support with roofbar - roofbar forepoled off telescopic powered beam with joint on waste shield |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1517763A true GB1517763A (en) | 1978-07-12 |
Family
ID=27185994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2738975A Expired GB1517763A (en) | 1974-07-02 | 1975-06-27 | Underground mine roof support |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2277231A1 (en) |
GB (1) | GB1517763A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2136040A (en) * | 1983-03-08 | 1984-09-12 | Dobson Park Ind | Pivotal linkage of a mine roof support |
GB2150192A (en) * | 1983-11-16 | 1985-06-26 | Dobson Park Ind | Mine roof support |
CN103485812A (en) * | 2013-09-09 | 2014-01-01 | 三一重型装备有限公司 | Pre-supporting mechanism and tunneling machine |
CN110359941A (en) * | 2019-07-12 | 2019-10-22 | 天地科技股份有限公司 | A kind of top beam and the hydraulic support comprising the top beam |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2601341A1 (en) * | 1976-01-15 | 1977-07-28 | Kloeckner Werke Ag | EXTENSION UNIT FOR UNDERGROUND STRUTS |
GB2048355A (en) * | 1979-05-08 | 1980-12-10 | Gewerk Eisenhuette Westfalia | Mine roof supports |
DE3023282A1 (en) * | 1980-06-21 | 1982-01-21 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | SHIELD BOCK, ESPECIALLY FOR USE IN THE DISASSEMBLY OF MIGHTY WAREHOUSES IN DISC BUILDING |
HU185380B (en) * | 1980-06-30 | 1985-01-28 | Varpalotai Szenbanyak | Supporting device for mining particularly for wall method |
-
1975
- 1975-06-27 GB GB2738975A patent/GB1517763A/en not_active Expired
- 1975-07-02 FR FR7520836A patent/FR2277231A1/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2136040A (en) * | 1983-03-08 | 1984-09-12 | Dobson Park Ind | Pivotal linkage of a mine roof support |
GB2150192A (en) * | 1983-11-16 | 1985-06-26 | Dobson Park Ind | Mine roof support |
CN103485812A (en) * | 2013-09-09 | 2014-01-01 | 三一重型装备有限公司 | Pre-supporting mechanism and tunneling machine |
CN110359941A (en) * | 2019-07-12 | 2019-10-22 | 天地科技股份有限公司 | A kind of top beam and the hydraulic support comprising the top beam |
Also Published As
Publication number | Publication date |
---|---|
FR2277231A1 (en) | 1976-01-30 |
FR2277231B3 (en) | 1979-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |