GB1287565A - Improvements in or relating to a self-advancing mine roof support - Google Patents
Improvements in or relating to a self-advancing mine roof supportInfo
- Publication number
- GB1287565A GB1287565A GB42891/68A GB4289168A GB1287565A GB 1287565 A GB1287565 A GB 1287565A GB 42891/68 A GB42891/68 A GB 42891/68A GB 4289168 A GB4289168 A GB 4289168A GB 1287565 A GB1287565 A GB 1287565A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mine roof
- advancing mine
- roof support
- relating
- self
- 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 abstract 1
- 230000007935 neutral effect Effects 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
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
- E21D23/20—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms for sequential movement, e.g. one behind the other
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)
- Mechanically-Actuated Valves (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
1287565 Advancing mine roof supports MASTABAR MINING EQUIPMENT CO Ltd 9 Sept 1969 [10 Sept 1968] 42891/68 Heading E1P In an advancing mine roof support, controls, for adjusting props 14, 16 and a horizontal ram (not shown) for connection to a conveyor are arranged at a side of the support so as to obviate the need for the operator to be underneath the canopy. The controls are combined into a single lever 24 for controlling the release valves contained in block 22. The lever may occupy one neutral position and four operating positions and is connected to shafts 32, 34, mounted for sliding and pivotal motion respectively. When two levers are provided, one on each side, they are interlinked so as to have corresponding operating positions. The levers may be arranged so that a push-pull fence only is required to release the valves (Fig. 4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB42891/68A GB1287565A (en) | 1968-09-10 | 1968-09-10 | Improvements in or relating to a self-advancing mine roof support |
| US777016A US3514961A (en) | 1968-09-10 | 1968-11-19 | Mine roof supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB42891/68A GB1287565A (en) | 1968-09-10 | 1968-09-10 | Improvements in or relating to a self-advancing mine roof support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1287565A true GB1287565A (en) | 1972-08-31 |
Family
ID=10426421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42891/68A Expired GB1287565A (en) | 1968-09-10 | 1968-09-10 | Improvements in or relating to a self-advancing mine roof support |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3514961A (en) |
| GB (1) | GB1287565A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2623031C2 (en) * | 1976-05-22 | 1978-07-06 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Arrangement of a push-button control device for hydraulic support |
| DE202009015653U1 (en) | 2009-11-25 | 2011-07-12 | Bucyrus Europe Gmbh | Shield cap for a shield extension |
| US10493571B1 (en) * | 2018-09-17 | 2019-12-03 | Andrew Kostecki | Fused overlay plate and method |
| WO2020060969A1 (en) * | 2018-09-17 | 2020-03-26 | Andrew Kostecki | Fused overlay plate and method |
| US11712746B1 (en) | 2019-07-16 | 2023-08-01 | Andrew Kostecki | Wire feeder assembly |
| CN110454216B (en) * | 2019-09-19 | 2024-03-15 | 西安科技大学 | Underground catastrophe area temporary rapid airtight supporting device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2657028A (en) * | 1949-06-15 | 1953-10-27 | Joy Mfg Co | Walking jack |
| GB905379A (en) * | 1960-03-23 | 1962-09-05 | Dowty Mining Equipment Ltd | Improvements relating to hydraulic mine roof supporting devices |
| GB1015161A (en) * | 1960-09-23 | 1965-12-31 | Dobson Ltd W E & F | Improvements in or relating to stable hole support means for mines |
| DE1127842B (en) * | 1960-11-24 | 1962-04-19 | Maschf | Mobile longwall member |
| GB972824A (en) * | 1961-05-19 | 1964-10-14 | Dowty Mining Equipment Ltd | Mine roof-supporting device |
| DE1215092B (en) * | 1962-08-25 | 1966-04-28 | Nitto Tekko Kabushiki Kaisha | Gradual pit expansion with alternately shiftable ram assemblies |
| GB1025879A (en) * | 1963-10-16 | 1966-04-14 | Dowty Mining Equipment Ltd | Mining apparatus |
-
1968
- 1968-09-10 GB GB42891/68A patent/GB1287565A/en not_active Expired
- 1968-11-19 US US777016A patent/US3514961A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3514961A (en) | 1970-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |