GB943139A - Improvements in self-advancing mine-roof support units - Google Patents
Improvements in self-advancing mine-roof support unitsInfo
- Publication number
- GB943139A GB943139A GB4130761A GB4130761A GB943139A GB 943139 A GB943139 A GB 943139A GB 4130761 A GB4130761 A GB 4130761A GB 4130761 A GB4130761 A GB 4130761A GB 943139 A GB943139 A GB 943139A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- floor plate
- self
- frames
- advancing mine
- 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
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 abstract 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification 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
- E21D23/0418—Positioning devices and stabilizing means for the props
-
- 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
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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
943,139. Self-advancing mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. Nov. 17, 1961 [Dec. 24, 1960; May 4, 1961], No. 41307/61. Heading E1E. In a self-advancing mine roof support assembly, Fig. 2, the props 1 of each frame are interconnected by a floor plate 9 and pivotally carry foot plates 5, the units 1, 5 being vertically displaceable relative to the floor plates 9. Each prop 1 slides in a telescopic sleeve 6 to which it is removably coupled by pins 14 and which is mounted on the plate 5 by a universal joint 10-13. The plates 5 are coupled to the floor plate 9 by a bolted slot connection 9a, 15 allowing relative vertical displacement. The frame shown forms part of an assembly constituted by two such frames provided with a double-acting jack 2 therebetween, the frames being mounted, if desired, on a common floor plate, see also Figs 1, 3 and 20 (not shown). In a modification, Fig. 5, the prop sleeves 16 slide in rings 17 connected to the floor plate 9 and the frames are inter-connected by a cross member 20 carrying brackets 21 in which slide bolts 22 engaging stirrups 23 mounted on the plates 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER29348A DE1155077B (en) | 1960-12-24 | 1960-12-24 | Sole for migrating expansion elements |
| DER30260A DE1164960B (en) | 1961-05-04 | 1961-05-04 | Wandering expansion element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB943139A true GB943139A (en) | 1963-11-27 |
Family
ID=25991427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4130761A Expired GB943139A (en) | 1960-12-24 | 1961-11-17 | Improvements in self-advancing mine-roof support units |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB943139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2182704A (en) * | 1985-11-08 | 1987-05-20 | Dobson Park Ind | Pivotable forward extension on mine roof support canopy |
-
1961
- 1961-11-17 GB GB4130761A patent/GB943139A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2182704A (en) * | 1985-11-08 | 1987-05-20 | Dobson Park Ind | Pivotable forward extension on mine roof support canopy |
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