GB1218370A - Advancing mine roof support units for mine workings - Google Patents
Advancing mine roof support units for mine workingsInfo
- Publication number
- GB1218370A GB1218370A GB5337/68A GB533768A GB1218370A GB 1218370 A GB1218370 A GB 1218370A GB 5337/68 A GB5337/68 A GB 5337/68A GB 533768 A GB533768 A GB 533768A GB 1218370 A GB1218370 A GB 1218370A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mine
- advancing
- roof support
- mine roof
- support units
- 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
- 230000003245 working effect Effects 0.000 title 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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
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)
- Earth Drilling (AREA)
- Tents Or Canopies (AREA)
Abstract
1,218,370. Advancing mine roof supports. BERGWERKSVERBAND G.m .b.H. 2 Feb., 1968 [16 Feb., 1967], No. 5337/68. Heading E1P. In an advancing mine roof support assembly comprising two frames 9, 10 articulatedly connected to a conveyor 3 for simultaneous advance by a jack 5, 6, the cylinder of the jack is coupled to each frame by a thrust cylinder 16 having a telescopic connection 17, 18 thereto. The thrust cylinders are energised when the pit props are unloaded and the telescopic devices thereof are adapted to be disposed in a retracted condition when the piston rods are extended from their associated cylinders.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0091214 | 1967-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1218370A true GB1218370A (en) | 1971-01-06 |
Family
ID=6985720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5337/68A Expired GB1218370A (en) | 1967-02-16 | 1968-02-02 | Advancing mine roof support units for mine workings |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3448584A (en) |
| FR (1) | FR1553577A (en) |
| GB (1) | GB1218370A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE727824A (en) * | 1968-03-12 | 1969-07-16 | ||
| GB1276658A (en) * | 1968-10-03 | 1972-06-07 | Gullick Dobson Ltd | Improvements in or relating to means for directing or manoeuvring mineral working or like equipment in relation to a mineral face or terrain to be mined or worked with the aid of such equipment |
| GB1216953A (en) * | 1968-10-12 | 1970-12-23 | Gewerk Eisenhuette Westfalia | Improvements in support assemblies for mineral mines |
| GB1287096A (en) * | 1968-10-17 | 1972-08-31 | Karl Maria Groetschel | Improvements relating to advancing roof supports for mine workings |
| DE2655076A1 (en) * | 1976-12-04 | 1978-06-15 | Gewerk Eisenhuette Westfalia | EXTENSION CLAMP |
| FR2478194A1 (en) * | 1980-03-15 | 1981-09-18 | Hemscheidt Maschf Hermann | GUIDING DEVICE FOR WALKING BRIDGES |
| DE3024216C2 (en) * | 1980-06-27 | 1985-08-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Block bracing for a moveable conveyor and / or extraction system |
| DE3543060C1 (en) * | 1985-12-05 | 1987-02-05 | Hemscheidt Maschf Hermann | Mobile support structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1272244A (en) * | 1960-10-25 | 1961-09-22 | Dowty Mining Equipment Ltd | Support device for a mine roof |
| US3328966A (en) * | 1963-03-29 | 1967-07-04 | Stamicarbon | Movable face support for use in mines |
| DE1238867B (en) * | 1965-09-01 | 1967-04-20 | Hansjoachim Von Hippel Dr Ing | Hydraulic ram removal |
-
1968
- 1968-02-02 GB GB5337/68A patent/GB1218370A/en not_active Expired
- 1968-02-07 US US703703A patent/US3448584A/en not_active Expired - Lifetime
- 1968-02-16 FR FR1553577D patent/FR1553577A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1553577A (en) | 1969-01-10 |
| US3448584A (en) | 1969-06-10 |
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