GB1082663A - Improvements relating to control means of mine roof supports - Google Patents
Improvements relating to control means of mine roof supportsInfo
- Publication number
- GB1082663A GB1082663A GB2312/64A GB231264A GB1082663A GB 1082663 A GB1082663 A GB 1082663A GB 2312/64 A GB2312/64 A GB 2312/64A GB 231264 A GB231264 A GB 231264A GB 1082663 A GB1082663 A GB 1082663A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carried
- control means
- switch
- improvements relating
- mine 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
- 239000003245 coal Substances 0.000 abstract 1
- 239000012530 fluid Substances 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
-
- 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
-
- 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
- E21D23/144—Measuring the advance of support units with respect to internal points of reference, e.g. with respect to neighboring support units or extension of a cylinder
-
- 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
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
- E21F13/086—Armoured conveyors 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)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Actuator (AREA)
Abstract
1,082,663. Hydraulic rams. W. E. & F. DOBSON Ltd. Jan. 14, 1965 [Jan. 18, 1964], No. 2312/64. Heading F1P. The supply of hydraulic fluid to a horizontal ram cylinder 1 for advancing a coal face conveyer is cut-off at the end of the outward stroke by the closure of an electric switch 4 or a pilot valve effected when a coil spring 17 carried by the piston 16 moves a cam slide 9 carried by the cylinder end block 12 to displace a plunger 6 also in said block 12 and connected to the switch 4. A similar switch 3, plunger 5 and cam slide 18 carried by the opposite cylinder end block are actuated by a spring-biased striker 24 carried by the piston 16.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2312/64A GB1082663A (en) | 1964-01-18 | 1964-01-18 | Improvements relating to control means of mine roof supports |
DED46240A DE1245293B (en) | 1964-01-18 | 1965-01-14 | Hydraulic back cylinder for backing off expansion units arranged along the coal face |
BE658326D BE658326A (en) | 1964-01-18 | 1965-01-15 | |
FR2271A FR1421042A (en) | 1964-01-18 | 1965-01-18 | Control device for mine roof support support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2312/64A GB1082663A (en) | 1964-01-18 | 1964-01-18 | Improvements relating to control means of mine roof supports |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1082663A true GB1082663A (en) | 1967-09-06 |
Family
ID=9737334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2312/64A Expired GB1082663A (en) | 1964-01-18 | 1964-01-18 | Improvements relating to control means of mine roof supports |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE658326A (en) |
DE (1) | DE1245293B (en) |
FR (1) | FR1421042A (en) |
GB (1) | GB1082663A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113217068B (en) * | 2021-04-28 | 2024-08-16 | 太原理工大学 | Detection device and method for working face, terminal and storage medium |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922583C (en) * | 1942-12-13 | 1955-01-20 | Gerhard Werner | Method and device for laying face lifting equipment and / or face building components |
DE938003C (en) * | 1951-09-12 | 1956-01-19 | Eugen Muething | Setting device for multi-part pit punches |
FR1307469A (en) * | 1961-12-01 | 1962-10-26 | Dobson Ltd W E & F | Hydraulic pressure amplifier, applicable or incorporated in a mine ceiling support device |
-
1964
- 1964-01-18 GB GB2312/64A patent/GB1082663A/en not_active Expired
-
1965
- 1965-01-14 DE DED46240A patent/DE1245293B/en active Pending
- 1965-01-15 BE BE658326D patent/BE658326A/xx unknown
- 1965-01-18 FR FR2271A patent/FR1421042A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1245293B (en) | 1967-07-27 |
FR1421042A (en) | 1965-12-10 |
BE658326A (en) | 1965-04-30 |
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