FR2576058B1 - WALKING SUPPORT PILE, ESPECIALLY FOR MINES - Google Patents
WALKING SUPPORT PILE, ESPECIALLY FOR MINESInfo
- Publication number
- FR2576058B1 FR2576058B1 FR8500811A FR8500811A FR2576058B1 FR 2576058 B1 FR2576058 B1 FR 2576058B1 FR 8500811 A FR8500811 A FR 8500811A FR 8500811 A FR8500811 A FR 8500811A FR 2576058 B1 FR2576058 B1 FR 2576058B1
- Authority
- FR
- France
- Prior art keywords
- mines
- support pile
- walking support
- walking
- pile
- 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
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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
- E21D23/066—Pivoted cantilever extensions therefor
-
- 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
- E21D23/0454—Trailing plates; Coal face or goaf side sprags
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8500811A FR2576058B1 (en) | 1985-01-15 | 1985-01-15 | WALKING SUPPORT PILE, ESPECIALLY FOR MINES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8500811A FR2576058B1 (en) | 1985-01-15 | 1985-01-15 | WALKING SUPPORT PILE, ESPECIALLY FOR MINES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2576058A1 FR2576058A1 (en) | 1986-07-18 |
FR2576058B1 true FR2576058B1 (en) | 1987-12-31 |
Family
ID=9315451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8500811A Expired FR2576058B1 (en) | 1985-01-15 | 1985-01-15 | WALKING SUPPORT PILE, ESPECIALLY FOR MINES |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2576058B1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848928A (en) * | 1973-02-12 | 1974-11-19 | Taiheiyo Coal Mining Co Ltd | Pantographic wall protector and automatic controlling device thereof |
DE2808487C2 (en) * | 1978-02-28 | 1986-10-02 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Extraction facility for the extraction of seam-like deposits, especially of great thickness |
GB2019476B (en) * | 1978-04-20 | 1982-06-09 | Huwood Ltd | Sprag plates for mine roof supports |
DE2900981B2 (en) * | 1979-01-12 | 1980-10-30 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Pre-pledging device for hydraulic support racks |
AT360935B (en) * | 1979-05-03 | 1981-02-10 | Voest Alpine Ag | EXTENSION BLOCK |
GB2048355A (en) * | 1979-05-08 | 1980-12-10 | Gewerk Eisenhuette Westfalia | Mine roof supports |
GB2074223A (en) * | 1980-03-18 | 1981-10-28 | Dobson Park Ind | Root and coal face support |
DE3021547A1 (en) * | 1980-06-07 | 1981-12-17 | Ruhrkohle Ag, 4300 Essen | Mine-working shield support conveyor and travel section separator - has partitioning screen plates swivelling with conveyors superimposed plates |
-
1985
- 1985-01-15 FR FR8500811A patent/FR2576058B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2576058A1 (en) | 1986-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |