GB8717324D0 - Adjustment cylinder - Google Patents
Adjustment cylinderInfo
- Publication number
- GB8717324D0 GB8717324D0 GB878717324A GB8717324A GB8717324D0 GB 8717324 D0 GB8717324 D0 GB 8717324D0 GB 878717324 A GB878717324 A GB 878717324A GB 8717324 A GB8717324 A GB 8717324A GB 8717324 D0 GB8717324 D0 GB 8717324D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- adjustment cylinder
- adjustment
- cylinder
- 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.)
- Granted
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
- E21D23/04—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
- E21D23/066—Pivoted cantilever extensions therefor
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)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863626951 DE3626951C1 (en) | 1986-08-08 | 1986-08-08 | Pitch cylinder |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8717324D0 true GB8717324D0 (en) | 1987-08-26 |
GB2193745A GB2193745A (en) | 1988-02-17 |
GB2193745B GB2193745B (en) | 1990-05-23 |
Family
ID=6306981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8717324A Expired - Fee Related GB2193745B (en) | 1986-08-08 | 1987-07-22 | A coalface support structure having an adjustment cylinder |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3626951C1 (en) |
GB (1) | GB2193745B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4294194T1 (en) * | 1991-11-29 | 1993-11-18 | Motorola Inc | Device for accepting an intelligent card |
DE10328286B4 (en) | 2003-06-23 | 2015-05-13 | Caterpillar Global Mining Europe Gmbh | Hydraulic shield removal |
DE112008002215A5 (en) * | 2007-08-23 | 2010-06-17 | Tiefenbach Control Systems Gmbh | Extension frame for longwall mining in mines |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2306806C3 (en) * | 1973-02-12 | 1975-12-18 | Taiheiyo Coal Mining Co., Ltd., Tokio | Device for supporting the coal face arranged on a longwall frame |
-
1986
- 1986-08-08 DE DE19863626951 patent/DE3626951C1/en not_active Expired
-
1987
- 1987-07-22 GB GB8717324A patent/GB2193745B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2193745B (en) | 1990-05-23 |
DE3626951C1 (en) | 1987-09-24 |
GB2193745A (en) | 1988-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950722 |