GB977715A - Hydraulic programme control system for anchoring apparatus situated at the ends of conveyors in mines and for self-advancing mine roof supports - Google Patents
Hydraulic programme control system for anchoring apparatus situated at the ends of conveyors in mines and for self-advancing mine roof supportsInfo
- Publication number
- GB977715A GB977715A GB1749061D GB1749061D GB977715A GB 977715 A GB977715 A GB 977715A GB 1749061 D GB1749061 D GB 1749061D GB 1749061 D GB1749061 D GB 1749061D GB 977715 A GB977715 A GB 977715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- group
- jacks
- groups
- hydraulic
- 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
- 238000004873 anchoring Methods 0.000 title 1
- 230000004913 activation Effects 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/14—Fastening or securing by means not forming part of the material of the label itself by strings, straps, chains, or wires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- 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
- E21D23/0065—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 driven, or automatically, e.g. electrically-hydraulically controlled
-
- 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
-
- 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
- E21F13/10—Anchorings for conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Safety Valves (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
977,715. Endless conveyers. GEWERKSCHAFT EISENHUTTE, WESTFALIA. April 24, 1961 [April 25, 1960], No. 14798/61. Heading B8A. [Also in Divisions E1 and F1] A conveyer 10 and associated coal-winning machine may be adjusted in two directions at right angles relative to hydraulically operated prop Groups B and C on a frame 12, by the action of hydraulic jacks 20, 21. The conveyer is then held by its own prop group A while the groups B and C are released and the frame 12 moved to a fresh position by further action of the jacks 20, 21. Activation of the props and the jack 20 is effected by a control valve (Fig. 3, not shown). The activation of the jack 21 is effected by a separate control. A regulating valve assembly {see Division F1) ensures that the pressure from the jacks of the group A can only be released by the operation of valves which are motivated by the pressure maintaining the jacks B and C in supporting position. Similarly the pressure applied to groups B and C cannot be released without maintaining the pressure applied to group A. When pressure is applied to groups B and C a pressure build-up of 50 atmospheres is reached whereupon further pressure supply to group B is prevented until the pressure in the jacks of group C reaches 150 atmospheres.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG29519A DE1276581B (en) | 1960-04-25 | 1960-04-25 | Hydraulic high pressure valve as a preload valve for hydraulic equipment in mining operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB977715A true GB977715A (en) | 1964-12-09 |
Family
ID=7123762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1749061D Expired GB977715A (en) | 1960-04-25 | 1961-04-24 | Hydraulic programme control system for anchoring apparatus situated at the ends of conveyors in mines and for self-advancing mine roof supports |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE602987A (en) |
| DE (1) | DE1276581B (en) |
| GB (1) | GB977715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948209A (en) * | 2015-06-29 | 2015-09-30 | 平顶山市申联机械制造有限公司 | Automatic pressure supplementing integral plug-in mounting hand-operated direction valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB823128A (en) * | 1955-02-23 | 1959-11-04 | Dowty Mining Equipment Ltd | Improvements in and relating to mine roof support systems |
| DE1087098B (en) * | 1956-01-27 | 1960-08-18 | Gewerk Eisenhuette Westfalia | Progressive expansion for mining operations |
-
1960
- 1960-04-25 DE DEG29519A patent/DE1276581B/en active Pending
-
1961
- 1961-04-24 GB GB1749061D patent/GB977715A/en not_active Expired
- 1961-04-25 BE BE602987A patent/BE602987A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948209A (en) * | 2015-06-29 | 2015-09-30 | 平顶山市申联机械制造有限公司 | Automatic pressure supplementing integral plug-in mounting hand-operated direction valve |
Also Published As
| Publication number | Publication date |
|---|---|
| BE602987A (en) | 1961-10-25 |
| DE1276581B (en) | 1968-09-05 |
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