GB1477136A - Mine roof support - Google Patents
Mine roof supportInfo
- Publication number
- GB1477136A GB1477136A GB4862173A GB4862173A GB1477136A GB 1477136 A GB1477136 A GB 1477136A GB 4862173 A GB4862173 A GB 4862173A GB 4862173 A GB4862173 A GB 4862173A GB 1477136 A GB1477136 A GB 1477136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- canopy
- floor beam
- link
- plane
- pivotally connected
- 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
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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0427—Shield operating devices; Hinges therefor
-
- 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
- E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Tents Or Canopies (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Lining And Supports For Tunnels (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
1477136 Mine roof supports DOWTY MINING EQUIPMENT Ltd 27 Sept 1974 [18 Oct 1973] 48621/73 Heading E1P In a mine roof support comprising a roof canopy 2 interconnected to a floor beam 1 by a plurality of jacks 3, 4 the canopy is also secured to the floor beam by guide means comprising a first link 12 pivotally connected to the floor beam, a second link 13 likewise secured to the floor beam at a position spaced from the first link, a third link 16 pivotally connected to said first and second links and an extension 17 fixedly secured to the third link and pivotally connected to the canopy, the arrangement being such that (a) the centre of the pivotal connection to the canopy is limited by the members 12, 13, 16, 17 to move solely in a fixed path at right-angles relative to the plane of the floor beam, (b) the pivotal connection to the canopy is arranged to permit angular tilting of the canopy relative to the floor beam about two axes both of which lie parallel to the plane of the canopy and (c) to resist angular movement of the canopy relative to the floor beam in the plane of the canopy.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4862173A GB1477136A (en) | 1973-10-18 | 1973-10-18 | Mine roof support |
| DE2448367A DE2448367C3 (en) | 1973-10-18 | 1974-10-10 | Longwall frame |
| US514262A US3928981A (en) | 1973-10-18 | 1974-10-11 | Mine proof support |
| BE149684A BE821248A (en) | 1973-10-18 | 1974-10-18 | SUPPORT DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4862173A GB1477136A (en) | 1973-10-18 | 1973-10-18 | Mine roof support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1477136A true GB1477136A (en) | 1977-06-22 |
Family
ID=10449293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4862173A Expired GB1477136A (en) | 1973-10-18 | 1973-10-18 | Mine roof support |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3928981A (en) |
| BE (1) | BE821248A (en) |
| DE (1) | DE2448367C3 (en) |
| GB (1) | GB1477136A (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010618A (en) * | 1974-01-19 | 1977-03-08 | Dowty Mining Equipment Limited | Mine roof support |
| GB1526399A (en) * | 1974-12-18 | 1978-09-27 | Dowty Mining Equipment Ltd | Mine roof support |
| GB1494284A (en) * | 1975-07-19 | 1977-12-07 | Gullick Dobson Ltd | Self-advancing mine roof supports |
| DE2540091C2 (en) * | 1975-09-09 | 1982-06-03 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Shield support frame |
| DE2605068C3 (en) * | 1976-02-10 | 1978-12-14 | Thyssen Industrie Ag, 4300 Essen | Cap and break shield construction for a shield support frame |
| DE2622208C2 (en) * | 1976-05-19 | 1983-10-20 | Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum | Extension trestle |
| DE2644649C3 (en) * | 1976-10-02 | 1986-11-13 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Shield support frame |
| DE2730295A1 (en) | 1977-07-05 | 1979-01-25 | Gewerk Eisenhuette Westfalia | Telescopic mine support shield member |
| DE2840835C2 (en) * | 1978-09-20 | 1986-03-06 | Klöckner-Becorit GmbH, 4620 Castrop-Rauxel | Shield support frame for underground longwall mining |
| DE2850073A1 (en) * | 1978-11-18 | 1980-05-29 | Fletcher Sutcliffe Wild Ltd | Roof support for longwall mining - has permanently loaded force applicator acting on roof beams and restoring displaced chock legs after predetermined pressure drop |
| AT361430B (en) * | 1979-01-23 | 1981-03-10 | Voest Alpine Ag | EXTENSION BLOCK |
| DE3131607C2 (en) * | 1980-08-16 | 1986-12-11 | Dowty Mining Equipment Ltd., Ashchurch, Tewkesbury,Gloucestershire | Shield support frame with a rigid sole construction |
| GB2143882B (en) * | 1983-07-23 | 1986-11-05 | Dowty Mining Equipment Ltd | Shield supports suitable for use in mines |
| GB2188665B (en) * | 1986-04-01 | 1990-02-21 | Dobson Park Ind | Mine roof supports |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1124665A (en) * | 1966-04-29 | 1968-08-21 | Gullick Ltd | Improvements in or relating to mine roof supports |
| BE789390A (en) * | 1971-10-02 | 1973-01-15 | Gewerk Eisenhuette Westfalia | SHIELD SUPPORT FRAMES |
| US3848928A (en) * | 1973-02-12 | 1974-11-19 | Taiheiyo Coal Mining Co Ltd | Pantographic wall protector and automatic controlling device thereof |
-
1973
- 1973-10-18 GB GB4862173A patent/GB1477136A/en not_active Expired
-
1974
- 1974-10-10 DE DE2448367A patent/DE2448367C3/en not_active Expired
- 1974-10-11 US US514262A patent/US3928981A/en not_active Expired - Lifetime
- 1974-10-18 BE BE149684A patent/BE821248A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US3928981A (en) | 1975-12-30 |
| BE821248A (en) | 1975-02-17 |
| DE2448367A1 (en) | 1975-04-24 |
| DE2448367B2 (en) | 1979-09-06 |
| DE2448367C3 (en) | 1980-05-14 |
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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 |