GB843957A - A supporting arrangement for the roof of workface gallerles in mines - Google Patents
A supporting arrangement for the roof of workface gallerles in minesInfo
- Publication number
- GB843957A GB843957A GB7638/57A GB763857A GB843957A GB 843957 A GB843957 A GB 843957A GB 7638/57 A GB7638/57 A GB 7638/57A GB 763857 A GB763857 A GB 763857A GB 843957 A GB843957 A GB 843957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- row
- props
- footplate
- rail
- end wall
- 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
- 229910000746 Structural steel Inorganic materials 0.000 abstract 1
Classifications
-
- 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
- E21D15/60—Devices for withdrawing props or chocks
- E21D15/606—Devices for withdrawing props or chocks the props being moved systematically
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chutes (AREA)
Abstract
843,957. Mine roof supports. HAARMANN, A. March 7, 1957 [Dec. 3, 1956], No. 7638/57. Class 20(2) In advancing the pit props in an inclined seam, the props 4 are disposed in staggered rows A, B &c. parallel to the coalface 2, and each of the props in row A is guided through the opposite gap between the adjacent pair of props in row B by sliding its footplate 5 along a rail 8 attached to the lower prop in row B. The rail 8 comprises an angle iron cranked slightly at 9 and detachably secured to the plate 5 in the row B by engaging the downwardly projecting pins 10 behind the end wall of the plate or in vertical holes in the end wall. If the gap between adjacent footplates in row B is less than the length of the footplate to be moved, a slide rail curved in the vertical plane is secured to the upper face of the footplate so that the props can be guided over the footplate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE843957X | 1956-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB843957A true GB843957A (en) | 1960-08-10 |
Family
ID=6774348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7638/57A Expired GB843957A (en) | 1956-12-03 | 1957-03-07 | A supporting arrangement for the roof of workface gallerles in mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB843957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195460A (en) * | 2012-12-10 | 2013-07-10 | 辽宁鑫丰矿电设备制造有限公司 | Hydraulic support steering platform |
| CN114017080A (en) * | 2021-10-11 | 2022-02-08 | 煤炭科学研究总院 | Support dismounting vehicle |
-
1957
- 1957-03-07 GB GB7638/57A patent/GB843957A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195460A (en) * | 2012-12-10 | 2013-07-10 | 辽宁鑫丰矿电设备制造有限公司 | Hydraulic support steering platform |
| CN114017080A (en) * | 2021-10-11 | 2022-02-08 | 煤炭科学研究总院 | Support dismounting vehicle |
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