GB2216941B - Connection devices - Google Patents
Connection devicesInfo
- Publication number
- GB2216941B GB2216941B GB8807880A GB8807880A GB2216941B GB 2216941 B GB2216941 B GB 2216941B GB 8807880 A GB8807880 A GB 8807880A GB 8807880 A GB8807880 A GB 8807880A GB 2216941 B GB2216941 B GB 2216941B
- Authority
- GB
- United Kingdom
- Prior art keywords
- connection devices
- devices
- connection
- 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 - Fee Related
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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
- E21D23/086—Details of fixing devices therefor
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)
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8807880A GB2216941B (en) | 1988-04-05 | 1988-04-05 | Connection devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8807880A GB2216941B (en) | 1988-04-05 | 1988-04-05 | Connection devices |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8807880D0 GB8807880D0 (en) | 1988-05-05 |
GB2216941A GB2216941A (en) | 1989-10-18 |
GB2216941B true GB2216941B (en) | 1992-04-22 |
Family
ID=10634550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8807880A Expired - Fee Related GB2216941B (en) | 1988-04-05 | 1988-04-05 | Connection devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2216941B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2526074C2 (en) * | 2013-01-09 | 2014-08-20 | Черных Николай Георгиевич | Mechanised second working complex |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1152842A (en) * | 1965-06-01 | 1969-05-21 | Dowty Mining Equipment Ltd | Roof Support Assembly suitable for use in Mines |
GB2082661A (en) * | 1980-08-23 | 1982-03-10 | Dobson Park Ind | Improvements in or relating to mining equipment |
US4571003A (en) * | 1983-01-07 | 1986-02-18 | Gewerkschaft Eisenhutte Westfalia | Apparatus for controlling the position of a mineral mining machine |
-
1988
- 1988-04-05 GB GB8807880A patent/GB2216941B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1152842A (en) * | 1965-06-01 | 1969-05-21 | Dowty Mining Equipment Ltd | Roof Support Assembly suitable for use in Mines |
GB2082661A (en) * | 1980-08-23 | 1982-03-10 | Dobson Park Ind | Improvements in or relating to mining equipment |
US4571003A (en) * | 1983-01-07 | 1986-02-18 | Gewerkschaft Eisenhutte Westfalia | Apparatus for controlling the position of a mineral mining machine |
Also Published As
Publication number | Publication date |
---|---|
GB8807880D0 (en) | 1988-05-05 |
GB2216941A (en) | 1989-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060405 |