FR2212484A1 - - Google Patents
Info
- Publication number
- FR2212484A1 FR2212484A1 FR7346317A FR7346317A FR2212484A1 FR 2212484 A1 FR2212484 A1 FR 2212484A1 FR 7346317 A FR7346317 A FR 7346317A FR 7346317 A FR7346317 A FR 7346317A FR 2212484 A1 FR2212484 A1 FR 2212484A1
- 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.)
- Granted
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
-
- 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
- E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
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)
- Excavating Of Shafts Or Tunnels (AREA)
- Movable Scaffolding (AREA)
- Earth Drilling (AREA)
- Tents Or Canopies (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1111372A AT321229B (de) | 1972-12-28 | 1972-12-28 | Schildausbau |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2212484A1 true FR2212484A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-26 |
| FR2212484B1 FR2212484B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-10-08 |
Family
ID=3626830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7346317A Expired FR2212484B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-12-28 | 1973-12-26 |
Country Status (10)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2297319A1 (fr) * | 1975-01-11 | 1976-08-06 | Rheinstahl Ag | Soutenement a bouclier |
| FR2449195A1 (fr) * | 1979-02-14 | 1980-09-12 | Voest Alpine Ag | Chevalet de soutenement de galeries de mines |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1486906A (en) * | 1974-09-07 | 1977-09-28 | Peake C | Mining apparatus |
| GB1526399A (en) * | 1974-12-18 | 1978-09-27 | Dowty Mining Equipment Ltd | Mine roof support |
| AT337639B (de) * | 1975-09-26 | 1977-07-11 | Voest Alpine Montan Ag | Schildausbau |
| DE2749371C3 (de) * | 1977-11-04 | 1980-05-14 | Kloeckner-Werke Ag, 4100 Duisburg | Schildausbaugestell |
| AT350991B (de) * | 1977-11-14 | 1979-06-25 | Voest Ag | Schildausbaugestell |
| DE2757885A1 (de) * | 1977-12-24 | 1979-06-28 | Thyssen Industrie | Schildausbaugestell fuer den grubenausbau |
| HU179856B (en) * | 1980-05-06 | 1982-12-28 | Varpalotai Szenbanyak | Apparatus for nining particularly expolating thick seams |
| DE3211595A1 (de) * | 1982-03-30 | 1983-10-06 | Gewerk Eisenhuette Westfalia | Bruch- und versatzabschirmung eines lemniskatenschildes |
| GB2188665B (en) * | 1986-04-01 | 1990-02-21 | Dobson Park Ind | Mine roof supports |
| GB8707235D0 (en) * | 1987-03-26 | 1987-04-29 | Dowty Hucknall Ltd | Roof support |
| US5584611A (en) * | 1994-11-22 | 1996-12-17 | Long-Airdox | Roof support for underground excavations |
| US11655711B2 (en) | 2018-09-24 | 2023-05-23 | Joy Global Underground Mining Llc | Roof support including extendable links |
| US10774642B1 (en) * | 2019-05-05 | 2020-09-15 | Liaoning University | Hydraulic support unit and hydraulic support for anti-rock burst roadway |
| CN114562314B (zh) * | 2022-03-09 | 2023-02-28 | 中国矿业大学 | 一种综放工作面充填液压支架及使用方法 |
| US12049824B2 (en) * | 2022-04-24 | 2024-07-30 | Henan Polytechnic University | Distributed coal cutting device for longwall face of coal mine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811288A (en) * | 1972-05-15 | 1974-05-21 | Kloeckner Werke Ag | Traveling face support with an attached extensible shield |
-
1972
- 1972-12-28 AT AT1111372A patent/AT321229B/de not_active IP Right Cessation
-
1973
- 1973-12-17 HU HUOE212A patent/HU167351B/hu unknown
- 1973-12-21 CS CS8895A patent/CS174226B2/cs unknown
- 1973-12-21 DE DE2363832A patent/DE2363832C3/de not_active Expired
- 1973-12-25 YU YU3345/73A patent/YU35658B/xx unknown
- 1973-12-26 FR FR7346317A patent/FR2212484B1/fr not_active Expired
- 1973-12-26 US US427438A patent/US3902325A/en not_active Expired - Lifetime
- 1973-12-27 SU SU731981658A patent/SU683641A3/ru active
- 1973-12-28 GB GB5997173A patent/GB1431609A/en not_active Expired
- 1973-12-28 PL PL1973167680A patent/PL97759B1/pl unknown
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2297319A1 (fr) * | 1975-01-11 | 1976-08-06 | Rheinstahl Ag | Soutenement a bouclier |
| FR2449195A1 (fr) * | 1979-02-14 | 1980-09-12 | Voest Alpine Ag | Chevalet de soutenement de galeries de mines |
Also Published As
| Publication number | Publication date |
|---|---|
| SU683641A3 (ru) | 1979-08-30 |
| GB1431609A (en) | 1976-04-14 |
| YU334573A (en) | 1980-09-25 |
| CS174226B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-03-31 |
| AT321229B (de) | 1975-03-25 |
| US3902325A (en) | 1975-09-02 |
| DE2363832A1 (de) | 1974-07-04 |
| PL97759B1 (pl) | 1978-03-30 |
| YU35658B (en) | 1981-04-30 |
| DE2363832B2 (de) | 1977-08-25 |
| HU167351B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-27 |
| FR2212484B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-10-08 |
| DE2363832C3 (de) | 1978-04-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |