FR1271386A - Roof supports for mining galleries - Google Patents
Roof supports for mining galleriesInfo
- Publication number
- FR1271386A FR1271386A FR841010A FR841010A FR1271386A FR 1271386 A FR1271386 A FR 1271386A FR 841010 A FR841010 A FR 841010A FR 841010 A FR841010 A FR 841010A FR 1271386 A FR1271386 A FR 1271386A
- Authority
- FR
- France
- Prior art keywords
- roof supports
- mining galleries
- galleries
- mining
- roof
- 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
- 238000005065 mining Methods 0.000 title 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
-
- 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
-
- 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
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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR841010A FR1271386A (en) | 1959-10-12 | 1960-10-12 | Roof supports for mining galleries |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB34500/59A GB967164A (en) | 1959-10-12 | 1959-10-12 | Mine roof support systems |
FR841010A FR1271386A (en) | 1959-10-12 | 1960-10-12 | Roof supports for mining galleries |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1271386A true FR1271386A (en) | 1961-09-08 |
Family
ID=26187791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR841010A Expired FR1271386A (en) | 1959-10-12 | 1960-10-12 | Roof supports for mining galleries |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1271386A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3259024A (en) * | 1963-03-08 | 1966-07-05 | Coal Industry Patents Ltd | Mine roof support remote control systems |
DE1237041B (en) * | 1964-10-12 | 1967-03-23 | Dowty Electrics Ltd | Device for displaying the advance process of a migrating longwall structure |
DE1254563B (en) * | 1963-09-03 | 1967-11-23 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1254564B (en) * | 1964-05-15 | 1967-11-23 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1255613B (en) * | 1963-04-22 | 1967-12-07 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1258371B (en) * | 1964-02-04 | 1968-01-11 | Gullick Ltd | Migrating hydraulic longwall mining |
DE1279582B (en) * | 1964-01-14 | 1968-10-10 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1280786B (en) * | 1964-02-07 | 1968-10-24 | Gullick Ltd | Wandering longwall mining for underground mining operations |
DE1292605B (en) * | 1964-03-20 | 1969-04-17 | Coal Industry Patents Ltd | Wandering pit support |
DE1608492B1 (en) * | 1963-04-04 | 1970-06-18 | Dowty Technical Dev Ltd | Control device for a longwall expansion |
-
1960
- 1960-10-12 FR FR841010A patent/FR1271386A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3259024A (en) * | 1963-03-08 | 1966-07-05 | Coal Industry Patents Ltd | Mine roof support remote control systems |
DE1608492B1 (en) * | 1963-04-04 | 1970-06-18 | Dowty Technical Dev Ltd | Control device for a longwall expansion |
DE1255613B (en) * | 1963-04-22 | 1967-12-07 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1254563B (en) * | 1963-09-03 | 1967-11-23 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1279582B (en) * | 1964-01-14 | 1968-10-10 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1258371B (en) * | 1964-02-04 | 1968-01-11 | Gullick Ltd | Migrating hydraulic longwall mining |
DE1280786B (en) * | 1964-02-07 | 1968-10-24 | Gullick Ltd | Wandering longwall mining for underground mining operations |
DE1292605B (en) * | 1964-03-20 | 1969-04-17 | Coal Industry Patents Ltd | Wandering pit support |
DE1292605C2 (en) * | 1964-03-20 | 1973-05-17 | Coal Industry Patents Ltd | Wandering pit support |
DE1254564B (en) * | 1964-05-15 | 1967-11-23 | Dowty Mining Equipment Ltd | Wandering longwall mining |
DE1237041B (en) * | 1964-10-12 | 1967-03-23 | Dowty Electrics Ltd | Device for displaying the advance process of a migrating longwall structure |
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