GB1039314A - A walking roof support system for longwall workings in coal mines - Google Patents
A walking roof support system for longwall workings in coal minesInfo
- Publication number
- GB1039314A GB1039314A GB1198864A GB1198864A GB1039314A GB 1039314 A GB1039314 A GB 1039314A GB 1198864 A GB1198864 A GB 1198864A GB 1198864 A GB1198864 A GB 1198864A GB 1039314 A GB1039314 A GB 1039314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control unit
- hydraulic
- assembly
- roof support
- support
- 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
- 239000003245 coal Substances 0.000 title 1
- 230000003245 working effect Effects 0.000 title 1
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 abstract 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 abstract 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
-
- 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
-
- 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
- E21D23/0073—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 with advancing shifting devices connected therewith
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)
Abstract
1,039,314. Mine roof support systems. K. GERLACH and H. GERLACH. March 20, 1964 [March 22, 1963], No. 11988/64. Heading F1P. [Also in Division B8] In a walking roof support system Fig. 1 (not shown) wherein a plurality of support assemblies each comprising hydraulically extendable props 1, 2 and each advanceable by an hydraulic thrust cylinder 8 towards a face conveyer 9, a separate, self-contained portable control unit 12 for operating the hydraulic system of each support assembly is releasably connected to supply and return pipes 10 and to the coupling 15 of the particular support assembly which is to be operated. Each prop 1, 2 has a lock 3 having an associated wedge 4 movable by an hydraulic wedge actuator 16 connected to the control unit 12. Alternatively each prop 1,2 may be provided with an hydraulic locking device, in which case the control means for the locking devices is incorporated directly in the control unit 12. In a second embodiment the thrust cylinder 8 is combined with the control unit 12, the combination being detachable from a roof assembly for connection to another assembly for use therein.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG0037332 | 1963-03-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1039314A true GB1039314A (en) | 1966-08-17 |
Family
ID=7125611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1198864A Expired GB1039314A (en) | 1963-03-22 | 1964-03-20 | A walking roof support system for longwall workings in coal mines |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE645521A (en) |
GB (1) | GB1039314A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450942A1 (en) * | 1979-03-08 | 1980-10-03 | Gewerk Eisenhuette Westfalia | DEVICE FOR THE CONNECTION OF A HYDRAULIC STEERING SUPPORT TO THE SUPPLY SYSTEM OF A DEEP MINING |
GB2164987A (en) * | 1984-09-26 | 1986-04-03 | Dowty Mining Equipment Ltd | Mine roof supports |
-
1964
- 1964-03-20 GB GB1198864A patent/GB1039314A/en not_active Expired
- 1964-03-20 BE BE645521D patent/BE645521A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450942A1 (en) * | 1979-03-08 | 1980-10-03 | Gewerk Eisenhuette Westfalia | DEVICE FOR THE CONNECTION OF A HYDRAULIC STEERING SUPPORT TO THE SUPPLY SYSTEM OF A DEEP MINING |
GB2164987A (en) * | 1984-09-26 | 1986-04-03 | Dowty Mining Equipment Ltd | Mine roof supports |
Also Published As
Publication number | Publication date |
---|---|
BE645521A (en) | 1964-07-16 |
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