GB1179233A - Improvements in or relating to Fluid Operated Roof Supports. - Google Patents
Improvements in or relating to Fluid Operated Roof Supports.Info
- Publication number
- GB1179233A GB1179233A GB652766A GB652766A GB1179233A GB 1179233 A GB1179233 A GB 1179233A GB 652766 A GB652766 A GB 652766A GB 652766 A GB652766 A GB 652766A GB 1179233 A GB1179233 A GB 1179233A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- relating
- roof
- roof supports
- fluid operated
- 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
- 239000012530 fluid Substances 0.000 title 1
- 229910000639 Spring steel Inorganic materials 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/24—One-part threshing concaves
-
- 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
- E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Tents Or Canopies (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB652766A GB1179233A (en) | 1966-02-15 | 1966-02-15 | Improvements in or relating to Fluid Operated Roof Supports. |
BE693998D BE693998A (ko) | 1966-02-15 | 1967-02-13 | |
NL6702204A NL6702204A (ko) | 1966-02-15 | 1967-02-14 | |
FR95063A FR1511459A (fr) | 1966-02-15 | 1967-02-15 | Support de toit de galerie de mine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB652766A GB1179233A (en) | 1966-02-15 | 1966-02-15 | Improvements in or relating to Fluid Operated Roof Supports. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1179233A true GB1179233A (en) | 1970-01-28 |
Family
ID=9816135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB652766A Expired GB1179233A (en) | 1966-02-15 | 1966-02-15 | Improvements in or relating to Fluid Operated Roof Supports. |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE693998A (ko) |
FR (1) | FR1511459A (ko) |
GB (1) | GB1179233A (ko) |
NL (1) | NL6702204A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4605341A (en) * | 1983-10-22 | 1986-08-12 | Dobson Park Industries Plc. | Mine roof support and attachment means therefor |
-
1966
- 1966-02-15 GB GB652766A patent/GB1179233A/en not_active Expired
-
1967
- 1967-02-13 BE BE693998D patent/BE693998A/xx unknown
- 1967-02-14 NL NL6702204A patent/NL6702204A/xx unknown
- 1967-02-15 FR FR95063A patent/FR1511459A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4605341A (en) * | 1983-10-22 | 1986-08-12 | Dobson Park Industries Plc. | Mine roof support and attachment means therefor |
Also Published As
Publication number | Publication date |
---|---|
BE693998A (ko) | 1967-07-17 |
FR1511459A (fr) | 1968-01-26 |
NL6702204A (ko) | 1967-08-16 |
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