GB1418432A - Mine roof support - Google Patents
Mine roof supportInfo
- Publication number
- GB1418432A GB1418432A GB423374A GB423374A GB1418432A GB 1418432 A GB1418432 A GB 1418432A GB 423374 A GB423374 A GB 423374A GB 423374 A GB423374 A GB 423374A GB 1418432 A GB1418432 A GB 1418432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mine roof
- shield
- roof support
- support
- sections
- 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
- 238000012216 screening 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
- E21D23/0004—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
- E21D23/0043—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 two or more rows 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
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
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)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Tents Or Canopies (AREA)
- Error Detection And Correction (AREA)
Abstract
1418432 Mine roof supports BECORIT GRUBENAUSBAU GmbH 30 Jan 1974 [27 Feb 1973] 04233/74 Heading E1P In a mine roof support comprising a goafside screening shield consisting of two sections hinged to-gether, the shield is movable laterally relative to the remainder of the support by being connected thereto by hinge pins 8. The shield sections are interconnected by pivotal links 10 and the upper section is connected to the roof bar by a chain 9.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2309670A DE2309670C2 (en) | 1973-02-27 | 1973-02-27 | Support frame with offset shielding for longwall mining in underground mining operations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1418432A true GB1418432A (en) | 1975-12-17 |
Family
ID=5873203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB423374A Expired GB1418432A (en) | 1973-02-27 | 1974-01-30 | Mine roof support |
Country Status (7)
Country | Link |
---|---|
US (1) | US3908389A (en) |
JP (1) | JPS547487B2 (en) |
CS (1) | CS202030B2 (en) |
DE (1) | DE2309670C2 (en) |
GB (1) | GB1418432A (en) |
PL (1) | PL90941B1 (en) |
ZA (1) | ZA74423B (en) |
Cited By (1)
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 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1516637A (en) * | 1974-11-23 | 1978-07-05 | Gullick Dobson Ltd | Mine roof supports |
DE2850073A1 (en) * | 1978-11-18 | 1980-05-29 | Fletcher Sutcliffe Wild Ltd | Roof support for longwall mining - has permanently loaded force applicator acting on roof beams and restoring displaced chock legs after predetermined pressure drop |
CN104213929A (en) * | 2014-08-21 | 2014-12-17 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Large-inclination-angle coal bed fully-mechanized mining bracket and support method |
CN105065046B (en) * | 2015-07-13 | 2017-07-18 | 辽宁工程技术大学 | Flexible protective device between a kind of adjacent frame of hydraulic support |
CN106761870A (en) * | 2016-11-19 | 2017-05-31 | 无锡市洗选设备厂 | Sand washer bracket component |
CN106499425A (en) * | 2016-11-19 | 2017-03-15 | 无锡市洗选设备厂 | The hydraulic prop component of sand washer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1036663A (en) * | 1964-04-03 | 1966-07-20 | Gullick Ltd | Improvements in or relating to mine roof and like supports |
GB1124665A (en) * | 1966-04-29 | 1968-08-21 | Gullick Ltd | Improvements in or relating to mine roof supports |
BE789390A (en) * | 1971-10-02 | 1973-01-15 | Gewerk Eisenhuette Westfalia | SHIELD SUPPORT FRAMES |
-
1973
- 1973-02-27 DE DE2309670A patent/DE2309670C2/en not_active Expired
-
1974
- 1974-01-11 US US441485*A patent/US3908389A/en not_active Expired - Lifetime
- 1974-01-21 ZA ZA740423A patent/ZA74423B/en unknown
- 1974-01-30 GB GB423374A patent/GB1418432A/en not_active Expired
- 1974-02-05 CS CS74790A patent/CS202030B2/en unknown
- 1974-02-22 JP JP2130174A patent/JPS547487B2/ja not_active Expired
- 1974-02-25 PL PL1974169066A patent/PL90941B1/pl unknown
Cited By (1)
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 |
Also Published As
Publication number | Publication date |
---|---|
DE2309670B1 (en) | 1974-02-14 |
JPS547487B2 (en) | 1979-04-07 |
ZA74423B (en) | 1974-11-27 |
JPS49117302A (en) | 1974-11-09 |
US3908389A (en) | 1975-09-30 |
DE2309670C2 (en) | 1974-09-05 |
PL90941B1 (en) | 1977-02-28 |
CS202030B2 (en) | 1980-12-31 |
DE2309670A1 (en) | 1974-02-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |