JPS5135601A - - Google Patents
Info
- Publication number
- JPS5135601A JPS5135601A JP50088462A JP8846275A JPS5135601A JP S5135601 A JPS5135601 A JP S5135601A JP 50088462 A JP50088462 A JP 50088462A JP 8846275 A JP8846275 A JP 8846275A JP S5135601 A JPS5135601 A JP S5135601A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- E21D23/16—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
- E21D23/12—Control, e.g. using remote control
- E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
- E21D23/148—Wireless transmission of signals or commands
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)
- Computer Networks & Wireless Communication (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36490/74A GB1517711A (en) | 1974-08-20 | 1974-08-20 | Self-advancing mine roof supports |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5135601A true JPS5135601A (en) | 1976-03-26 |
Family
ID=10388642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50088462A Pending JPS5135601A (en) | 1974-08-20 | 1975-07-21 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5135601A (en) |
DE (1) | DE2507106B2 (en) |
FR (1) | FR2282529A1 (en) |
GB (1) | GB1517711A (en) |
ZA (1) | ZA754137B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2640185C3 (en) * | 1976-09-07 | 1986-07-10 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Multiple control unit for hydraulic support |
DE2700829C2 (en) * | 1977-01-11 | 1986-04-17 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulic extension control |
PL118233B1 (en) * | 1978-04-14 | 1981-09-30 | Centralny Osrodek Projektowo Kon | Apparatus for winning thick deposits of useful minerals skopaemogo |
GB2095425B (en) * | 1981-02-25 | 1984-06-27 | Dobson Park Ind | Mine roof support control systems |
DE3334607C1 (en) * | 1983-09-24 | 1984-05-10 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Signal transmitter for control signals for controlling a hydraulic self-advancing powered support system |
DE3608181C2 (en) * | 1986-03-12 | 1995-01-05 | Westfalia Becorit Ind Tech | Supply block for connecting hydraulic expansion racks to the supply lines of a central hydraulic supply system |
DE3700470A1 (en) * | 1987-01-09 | 1988-07-21 | Bochumer Eisen Heintzmann | Hydraulic remote actuation system |
-
1974
- 1974-08-20 GB GB36490/74A patent/GB1517711A/en not_active Expired
-
1975
- 1975-02-19 DE DE19752507106 patent/DE2507106B2/en not_active Ceased
- 1975-06-27 ZA ZA00754137A patent/ZA754137B/en unknown
- 1975-07-04 FR FR7521042A patent/FR2282529A1/en active Granted
- 1975-07-21 JP JP50088462A patent/JPS5135601A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AU8305175A (en) | 1977-01-20 |
GB1517711A (en) | 1978-07-12 |
FR2282529A1 (en) | 1976-03-19 |
DE2507106B2 (en) | 1977-02-24 |
ZA754137B (en) | 1976-06-30 |
FR2282529B3 (en) | 1979-03-16 |
DE2507106A1 (en) | 1976-03-04 |