CS152420B2 - - Google Patents
Info
- Publication number
- CS152420B2 CS152420B2 CS312965A CS312965A CS152420B2 CS 152420 B2 CS152420 B2 CS 152420B2 CS 312965 A CS312965 A CS 312965A CS 312965 A CS312965 A CS 312965A CS 152420 B2 CS152420 B2 CS 152420B2
- Authority
- CS
- Czechoslovakia
Links
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
- E21D23/04—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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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)
- Sealing Of Jars (AREA)
- Tents Or Canopies (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0091973 | 1964-07-10 | ||
| DES96238A DE1224251B (en) | 1964-07-10 | 1965-03-27 | Multi-part cap of an extension serving to support pit spaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS152420B2 true CS152420B2 (en) | 1973-12-19 |
Family
ID=25997707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS312965A CS152420B2 (en) | 1964-07-10 | 1965-05-13 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE666314A (en) |
| CS (1) | CS152420B2 (en) |
| DE (1) | DE1224251B (en) |
| GB (1) | GB1079187A (en) |
| NL (1) | NL6508711A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576110A (en) * | 1969-05-14 | 1971-04-27 | Gewerk Eisenhuette Westfalia | Movable support assemblies for mineral mines |
| CN110374650B (en) * | 2019-08-08 | 2021-01-05 | 陕西彬长小庄矿业有限公司 | Front canopy beam surface structure for coal mine tunneling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143771B (en) * | 1960-02-24 | 1963-02-21 | Hemscheidt Maschf Hermann | Migrating hydraulic longwall construction for steep storage with floating ground |
-
1965
- 1965-03-27 DE DES96238A patent/DE1224251B/en active Pending
- 1965-05-13 CS CS312965A patent/CS152420B2/cs unknown
- 1965-06-08 GB GB2413365A patent/GB1079187A/en not_active Expired
- 1965-07-02 BE BE666314A patent/BE666314A/xx unknown
- 1965-07-07 NL NL6508711A patent/NL6508711A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6508711A (en) | 1966-01-11 |
| GB1079187A (en) | 1967-08-16 |
| DE1224251B (en) | 1966-09-08 |
| BE666314A (en) | 1965-11-03 |