NL204785A - - Google Patents
Info
- Publication number
- NL204785A NL204785A NL204785A NL204785A NL204785A NL 204785 A NL204785 A NL 204785A NL 204785 A NL204785 A NL 204785A NL 204785 A NL204785 A NL 204785A NL 204785 A NL204785 A NL 204785A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5450/55A GB823127A (en) | 1955-02-23 | 1955-02-23 | Improvements in and relating to mine roof support systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL204785A true NL204785A (xx) | 1963-10-15 |
Family
ID=9796410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL204785A NL204785A (xx) | 1955-02-23 | 1956-02-22 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2803444A (xx) |
| BE (1) | BE545472A (xx) |
| FR (1) | FR1146211A (xx) |
| GB (1) | GB823127A (xx) |
| NL (1) | NL204785A (xx) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910282A (en) * | 1957-07-15 | 1959-10-27 | Dowty Mining Equipment Ltd | Mine roof support devices |
| DE1182184B (de) * | 1957-12-24 | 1964-11-26 | Emil Weber | Einrichtung zum schrittweisen Strebausbau |
| DE1119803B (de) * | 1958-09-13 | 1961-12-21 | Rheinstahl Gmbh Wanheim | Mechanisierter Strebausbau |
| DE1142569B (de) * | 1959-10-09 | 1963-01-24 | Gewerk Eisenhuette Westfalia | Einrichtung zum Ruecken von Foerderern |
| DE1103268B (de) * | 1959-10-31 | 1961-03-30 | Bwg Bergwerks Und Walzwerk Mas | Wandernder Stuetzrahmen fuer den Ausbau von Grubenraeumen |
| DE1198307B (de) * | 1959-11-23 | 1965-08-12 | Nuesse & Graefer Maschf | Rueckverfahren zum Ruecken eines Ausbaus in Gestalt von Ausbaugestellen und eines Foerderers |
| DE1205036B (de) * | 1960-06-30 | 1965-11-18 | Kloeckner Werke Ag | Wandernder Strebausbau mit Rahmen |
| DE1170354B (de) * | 1960-07-13 | 1964-05-21 | Rheinstahl Gmbh Wanheim | Fuehrungsvorrichtung fuer maschinell rueckbare Ausbaurahmen |
| DE1408718B1 (de) * | 1960-10-25 | 1972-12-14 | Gewerk Eisenhuette Westfalia | Rueckvorrichtung fuer wandernde Ausbauelemente |
| DE1199725B (de) * | 1962-02-07 | 1965-09-02 | Maschf | Strebausbau, bestehend aus im Abstand nebeneinander aufgestellten rahmenartigen, hoehenverstellbaren Ausbaugestellen, die mittels Rueckzylinder vorziehbar sind |
| DE1280785B (de) * | 1963-01-14 | 1968-10-24 | Becorit Grubenausbau Gmbh | Wanderpfeilerausbau fuer untertaegige Grubenbetriebe |
| US3333426A (en) * | 1964-04-11 | 1967-08-01 | Gullick Ltd | Self-advancing hydraulically extensible mine roof supports |
| DE1280183B (de) * | 1964-11-17 | 1968-10-17 | Dowty Mining Equipment Ltd | Wandernder Strebausbau |
| GB1391484A (en) * | 1972-03-24 | 1975-04-23 | Gullick Dobson Ltd | Mineral mining systems |
| DE3824522A1 (de) * | 1988-07-20 | 1990-01-25 | Kloeckner Becorit Gmbh | Verfahren zum ruecken eines strebausbaues |
| CN101787889B (zh) * | 2010-03-18 | 2012-01-11 | 北京昊华能源股份有限公司 | 一种悬移支架综合机械化采煤方法 |
| CN103557024B (zh) * | 2013-11-19 | 2015-11-11 | 辽宁鑫丰矿电设备制造有限公司 | 一种折叠式调向回撤平台 |
| CN104453971B (zh) * | 2014-12-09 | 2017-03-29 | 辽宁威跃集团机械制造有限公司 | 双组拆安设备 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE18491E (en) * | 1932-06-14 | Method oe and means fob supporting roof strata during the mining oe | ||
| US2657028A (en) * | 1949-06-15 | 1953-10-27 | Joy Mfg Co | Walking jack |
-
0
- BE BE545472D patent/BE545472A/fr unknown
-
1955
- 1955-02-23 GB GB5450/55A patent/GB823127A/en not_active Expired
-
1956
- 1956-02-20 US US566712A patent/US2803444A/en not_active Expired - Lifetime
- 1956-02-22 NL NL204785A patent/NL204785A/xx unknown
- 1956-02-23 FR FR1146211D patent/FR1146211A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB823127A (en) | 1959-11-04 |
| BE545472A (xx) | |
| FR1146211A (fr) | 1957-11-07 |
| US2803444A (en) | 1957-08-20 |