FR2043624A1 - - Google Patents
Info
- Publication number
- FR2043624A1 FR2043624A1 FR7018820A FR7018820A FR2043624A1 FR 2043624 A1 FR2043624 A1 FR 2043624A1 FR 7018820 A FR7018820 A FR 7018820A FR 7018820 A FR7018820 A FR 7018820A FR 2043624 A1 FR2043624 A1 FR 2043624A1
- Authority
- FR
- France
- 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.)
- Withdrawn
Links
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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
-
- 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
- E21D23/0082—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor specially adapted for vertical or steep gradient seams
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)
- Ladders (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1334924A SU293470A1 (ru) | 1969-05-22 | Комплектно-агрегатная крепь |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2043624A1 true FR2043624A1 (fr) | 1971-02-19 |
Family
ID=20445947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7018820A Withdrawn FR2043624A1 (fr) | 1969-05-22 | 1970-05-22 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2025138A1 (fr) |
FR (1) | FR2043624A1 (fr) |
GB (1) | GB1269866A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485619A1 (fr) * | 1980-06-28 | 1981-12-31 | Gewerk Eisenhuette Westfalia | Soutenement marchant pour exploitation miniere souterraine, et en particulier soutenement pile-bouclier |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4102139A (en) * | 1974-05-17 | 1978-07-25 | Fletcher Sutcliffe Wild Limited | Mining equipment |
GB1472552A (en) * | 1974-11-15 | 1977-05-04 | Gullick Dobson Ltd | Mine roof supports |
DE2547853C2 (de) * | 1975-10-25 | 1984-04-05 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Schildausbaueinheit |
-
1970
- 1970-05-22 GB GB2505070A patent/GB1269866A/en not_active Expired
- 1970-05-22 FR FR7018820A patent/FR2043624A1/fr not_active Withdrawn
- 1970-05-22 DE DE19702025138 patent/DE2025138A1/de not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485619A1 (fr) * | 1980-06-28 | 1981-12-31 | Gewerk Eisenhuette Westfalia | Soutenement marchant pour exploitation miniere souterraine, et en particulier soutenement pile-bouclier |
Also Published As
Publication number | Publication date |
---|---|
DE2025138A1 (de) | 1971-02-18 |
GB1269866A (en) | 1972-04-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |