DE2309670A1 - - Google Patents
Info
- Publication number
- DE2309670A1 DE2309670A1 DE19732309670 DE2309670A DE2309670A1 DE 2309670 A1 DE2309670 A1 DE 2309670A1 DE 19732309670 DE19732309670 DE 19732309670 DE 2309670 A DE2309670 A DE 2309670A DE 2309670 A1 DE2309670 A1 DE 2309670A1
- Authority
- DE
- Germany
- 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.)
- Granted
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
- E21D23/0004—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 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
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2309670A DE2309670C2 (de) | 1973-02-27 | 1973-02-27 | Mit einer Versatzabschirmung versehenes Ausbaugestell für den Strebausbau im untertägigen Grubenbetrieb |
| US441485*A US3908389A (en) | 1973-02-27 | 1974-01-11 | Mine roof support |
| ZA740423A ZA74423B (en) | 1973-02-27 | 1974-01-21 | Improvements in or relating to a mine roof support |
| GB423374A GB1418432A (en) | 1973-02-27 | 1974-01-30 | Mine roof support |
| CS74790A CS202030B2 (en) | 1973-02-27 | 1974-02-05 | Reinforcement unit for the deep mine operation with multiple filling screening case |
| JP2130174A JPS547487B2 (de) | 1973-02-27 | 1974-02-22 | |
| PL1974169066A PL90941B1 (de) | 1973-02-27 | 1974-02-25 | |
| US05/596,161 US3996753A (en) | 1973-02-27 | 1975-07-15 | Mine roof support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2309670A DE2309670C2 (de) | 1973-02-27 | 1973-02-27 | Mit einer Versatzabschirmung versehenes Ausbaugestell für den Strebausbau im untertägigen Grubenbetrieb |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2309670B1 DE2309670B1 (de) | 1974-02-14 |
| DE2309670A1 true DE2309670A1 (de) | 1974-02-14 |
| DE2309670C2 DE2309670C2 (de) | 1974-09-05 |
Family
ID=5873203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2309670A Expired DE2309670C2 (de) | 1973-02-27 | 1973-02-27 | Mit einer Versatzabschirmung versehenes Ausbaugestell für den Strebausbau im untertägigen Grubenbetrieb |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3908389A (de) |
| JP (1) | JPS547487B2 (de) |
| CS (1) | CS202030B2 (de) |
| DE (1) | DE2309670C2 (de) |
| GB (1) | GB1418432A (de) |
| PL (1) | PL90941B1 (de) |
| ZA (1) | ZA74423B (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1516637A (en) * | 1974-11-23 | 1978-07-05 | Gullick Dobson Ltd | Mine roof supports |
| DE2850073A1 (de) * | 1978-11-18 | 1980-05-29 | Fletcher Sutcliffe Wild Ltd | Grubenausbau, insbesondere strebausbau |
| GB2136040B (en) * | 1983-03-08 | 1986-06-11 | Dobson Park Ind | Pivotal linkage of a mine roof support |
| CN104213929A (zh) * | 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 | 一种大倾角煤层综采支架及支护方法 |
| CN105065046B (zh) * | 2015-07-13 | 2017-07-18 | 辽宁工程技术大学 | 一种液压支架邻架间柔性防护装置 |
| CN106761870A (zh) * | 2016-11-19 | 2017-05-31 | 无锡市洗选设备厂 | 洗砂机支架组件 |
| CN106499425A (zh) * | 2016-11-19 | 2017-03-15 | 无锡市洗选设备厂 | 洗砂机的液压支护组件 |
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 (fr) * | 1971-10-02 | 1973-01-15 | Gewerk Eisenhuette Westfalia | Chassis de soutenement a boucliers |
-
1973
- 1973-02-27 DE DE2309670A patent/DE2309670C2/de not_active Expired
-
1974
- 1974-01-11 US US441485*A patent/US3908389A/en not_active Expired - Lifetime
- 1974-01-21 ZA ZA740423A patent/ZA74423B/xx unknown
- 1974-01-30 GB GB423374A patent/GB1418432A/en not_active Expired
- 1974-02-05 CS CS74790A patent/CS202030B2/cs unknown
- 1974-02-22 JP JP2130174A patent/JPS547487B2/ja not_active Expired
- 1974-02-25 PL PL1974169066A patent/PL90941B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1418432A (en) | 1975-12-17 |
| CS202030B2 (en) | 1980-12-31 |
| DE2309670C2 (de) | 1974-09-05 |
| US3908389A (en) | 1975-09-30 |
| DE2309670B1 (de) | 1974-02-14 |
| JPS547487B2 (de) | 1979-04-07 |
| PL90941B1 (de) | 1977-02-28 |
| ZA74423B (en) | 1974-11-27 |
| JPS49117302A (de) | 1974-11-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |