ES320428A1 - Roof supports for mine workings - Google Patents
Roof supports for mine workingsInfo
- Publication number
- ES320428A1 ES320428A1 ES0320428A ES320428A ES320428A1 ES 320428 A1 ES320428 A1 ES 320428A1 ES 0320428 A ES0320428 A ES 0320428A ES 320428 A ES320428 A ES 320428A ES 320428 A1 ES320428 A1 ES 320428A1
- Authority
- ES
- Spain
- Prior art keywords
- base
- superstructure
- prop
- traction means
- details
- 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
- 230000003245 working effect Effects 0.000 title 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/0206—Hydraulically operated extension 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
- E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting 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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
-
- 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
- E21D23/0069—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 without essential advancing shifting 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
- E21D23/04—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
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
In an advancing mine roof support comprising a series of props mounted on a base and supporting one part of the superstructure and in which a further prop 61 supports another part of the superstructure the prop 61 is adapted to be moved forwardly along a slot 60 formed in the base upon operation of traction means to provide a forward support to the superstructure as a whole whilst the base remains stationary. The traction means consist of a hydraulic ram pivoted at one end to a seating for a forward prop and secured at its other end to the superstructure which has sliding engagement with the seating, see Fig. 5 (not shown). Additional traction means 78, 80, 81 having a pair of laterally spaced slide bars 83 are also provided in the base for producing controlled advancement thereof as set out in Specifications 1037914 and 1037916. The prop 61 is supported from the superstructure by retraction springs, see Fig. 4 (not shown). For details of operation of forepoling arms employed and prop and superstructure details Specifications 983551, 1037911, 1037913, 1037914, 1037917 and 1037919 should be referred to. The base is provided with rubber seals 29 for the rams 78 and a shield 73 having reinforcements 75, 75a of which the former 75 is curved at 76 to accommodate the prop 61. In a modification, Figs. 8, 9 and 10 (not shown), two base elements are employed and the traction means in the base incorporates a chain or wire rope collecting element. For other minor details and mode of operation the Specification should be referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB49739/64A GB1133099A (en) | 1964-12-07 | 1964-12-07 | Improvements relating to roof supports for mine workings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES320428A1 true ES320428A1 (en) | 1966-05-16 |
Family
ID=10453382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0320428A Expired ES320428A1 (en) | 1964-12-07 | 1965-12-06 | Roof supports for mine workings |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3383866A (en) |
| BE (1) | BE673367A (en) |
| DE (1) | DE6601744U (en) |
| ES (1) | ES320428A1 (en) |
| FR (1) | FR1456383A (en) |
| GB (1) | GB1133099A (en) |
| NL (1) | NL6515745A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1568151A (en) * | 1977-04-26 | 1980-05-29 | Fletcher Sutcliffe Wild Ltd | Mine roof supports |
| US4268193A (en) * | 1979-11-29 | 1981-05-19 | Fletcher Sutcliffe Wild Limited | Mine roof supports |
| DE102008029014B3 (en) * | 2008-06-20 | 2010-04-15 | Bucyrus Dbt Europe Gmbh | Shield frame for underground mining and surface support element for this purpose |
| DE102008029085B3 (en) * | 2008-06-20 | 2010-01-28 | Bucyrus Dbt Europe Gmbh | Shield cap for a shield extension |
| DE202009015653U1 (en) * | 2009-11-25 | 2011-07-12 | Bucyrus Europe Gmbh | Shield cap for a shield extension |
| CN110259497A (en) * | 2018-11-24 | 2019-09-20 | 张国宁 | Gun diging face caterpillar band mobile Foldable hydraulic forestope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB934062A (en) * | 1960-09-09 | 1963-08-14 | Gullick Ltd | Improvements in or relating to roof supports for mines |
| FR1320148A (en) * | 1962-01-24 | 1963-03-08 | Charbonnages De France | Twin piers walking supports |
-
1964
- 1964-12-07 GB GB49739/64A patent/GB1133099A/en not_active Expired
-
1965
- 1965-11-30 DE DE6601744U patent/DE6601744U/en not_active Expired
- 1965-12-03 NL NL6515745A patent/NL6515745A/xx unknown
- 1965-12-03 US US511511A patent/US3383866A/en not_active Expired - Lifetime
- 1965-12-06 ES ES0320428A patent/ES320428A1/en not_active Expired
- 1965-12-07 BE BE673367D patent/BE673367A/xx unknown
- 1965-12-07 FR FR41179A patent/FR1456383A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3383866A (en) | 1968-05-21 |
| FR1456383A (en) | 1966-10-21 |
| BE673367A (en) | 1966-06-07 |
| DE6601744U (en) | 1969-03-27 |
| NL6515745A (en) | 1966-06-08 |
| GB1133099A (en) | 1968-11-06 |
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