GB1517711A - Self-advancing mine roof supports - Google Patents
Self-advancing mine roof supportsInfo
- Publication number
- GB1517711A GB1517711A GB36490/74A GB3649074A GB1517711A GB 1517711 A GB1517711 A GB 1517711A GB 36490/74 A GB36490/74 A GB 36490/74A GB 3649074 A GB3649074 A GB 3649074A GB 1517711 A GB1517711 A GB 1517711A
- Authority
- GB
- United Kingdom
- Prior art keywords
- automatic
- support
- valve
- control valve
- control
- 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
- 241000282414 Homo sapiens Species 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
- 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)
Abstract
1517711 Control of self advancing roof supports GULLICK DOBSON Ltd 17 June 1975 [20 Aug 1974] 36490/74 Heading E1P A self-advancing roof support having means for controlling the advance thereof comprises, a manually operable control valve 10 and an automatic sequence control valve 11 operable in response to a control signal from a position remote from the support, each control valve controlling the advancing steps required; isolating valves 13 to 17 enabling either one of the control valves to effect operation of the support independently of the other; and a control signal generator (51), Fig. 2 (not shown), manually operable to supply a control signal to the automatic sequence valve of another support. The shuttle isolating valves 13 to 17 in the automatic control valve 11 allow the overide of the automatic system by the manual control valve 10. Remote automatic operation is initiated by a hydraulic signal from an adjacent support applied to ports 18 or 22 of pilot valve 9. Non return valves 36, 37, 38 are opened by strikers 33, 34, 35 to lower props 39, 40, 41 and ram 43 is retracted and, when fully retracted, operates a striker valve 44 which initiates the automatic re-setting of the props 39, 40, 41 via the non return valves 36, 37, 38. An outlet line 53 may be provided to initiate automatic operation of an adjacent support. The manual control signal generator (51), Fig. 2 (not shown) comprises spring-loaded pistons and cylinders controlled by a 'dead man's handle' (52), and can be used to initiate the automatic advance of supports on either side of the support on which it is mounted. For Figure see next column
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36490/74A GB1517711A (en) | 1974-08-20 | 1974-08-20 | Self-advancing mine roof supports |
DE19752507106 DE2507106B2 (en) | 1974-08-20 | 1975-02-19 | CONTROL DEVICE FOR THE RESETTING PROCESS OF THE DISASSEMBLY POINT OF A SELF-ADVANCING STRUCTURE |
ZA00754137A ZA754137B (en) | 1974-08-20 | 1975-06-27 | Improvements in or relating to selfadvancing mine roof supports |
FR7521042A FR2282529A1 (en) | 1974-08-20 | 1975-07-04 | PERFECTIONED CONTROL MEANS FOR MINE ROOF WALKING SUPPORTS |
AU83051/75A AU492358B2 (en) | 1975-07-15 | Improvements in or relating to self-advancing mine roof supports | |
JP50088462A JPS5135601A (en) | 1974-08-20 | 1975-07-21 | |
US05/857,016 US4159671A (en) | 1974-08-20 | 1977-12-02 | Self-advancing mine roof supports |
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 |
---|---|
GB1517711A true GB1517711A (en) | 1978-07-12 |
Family
ID=10388642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36490/74A Expired GB1517711A (en) | 1974-08-20 | 1974-08-20 | Self-advancing mine roof supports |
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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3200523A1 (en) * | 1981-02-25 | 1982-10-14 | Dobson Park Industries Ltd., Nottingham, Nottinghamshire | DEVICE FOR SELECTING AN OPERATIONAL FUNCTION OF A PRESSURE-OPERABLE EXTENSION BASE IN UNDERGROUND MINING |
Families Citing this family (6)
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 |
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
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3200523A1 (en) * | 1981-02-25 | 1982-10-14 | Dobson Park Industries Ltd., Nottingham, Nottinghamshire | DEVICE FOR SELECTING AN OPERATIONAL FUNCTION OF A PRESSURE-OPERABLE EXTENSION BASE IN UNDERGROUND MINING |
Also Published As
Publication number | Publication date |
---|---|
ZA754137B (en) | 1976-06-30 |
DE2507106A1 (en) | 1976-03-04 |
FR2282529A1 (en) | 1976-03-19 |
FR2282529B3 (en) | 1979-03-16 |
JPS5135601A (en) | 1976-03-26 |
DE2507106B2 (en) | 1977-02-24 |
AU8305175A (en) | 1977-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |