GB1228381A - - Google Patents
Info
- Publication number
- GB1228381A GB1228381A GB5084767A GB1228381DA GB1228381A GB 1228381 A GB1228381 A GB 1228381A GB 5084767 A GB5084767 A GB 5084767A GB 1228381D A GB1228381D A GB 1228381DA GB 1228381 A GB1228381 A GB 1228381A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- valve
- advancing
- prop
- controlled
- 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
- 239000012530 fluid Substances 0.000 abstract 1
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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
-
- 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
- E21D23/0017—Pile type supports
- E21D23/0021—Pile type supports comprising two walking elements
-
- 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
- E21D23/12—Control, e.g. using remote control
-
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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)
- Fluid-Pressure Circuits (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5084767 | 1967-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1228381A true GB1228381A (US20110009641A1-20110113-C00116.png) | 1971-04-15 |
Family
ID=10457623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5084767A Expired GB1228381A (US20110009641A1-20110113-C00116.png) | 1967-11-08 | 1967-11-08 |
Country Status (5)
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3702061A (en) * | 1971-09-20 | 1972-11-07 | Kloeckner Werke Ag | Hydraulic support systems for mine workings |
BE795481A (fr) * | 1972-09-14 | 1973-05-29 | Gewerk Eisenhuette Westfalia | Pile de soutenement pour exploitation minieres, comportant un bloc de commande hydraulique |
US3996753A (en) * | 1973-02-27 | 1976-12-14 | Becorit Grubenausbau Gmbh | Mine roof support |
GB1546630A (en) * | 1976-12-29 | 1979-05-23 | Fletcher Sutcliffe Wild Ltd | Mine roof supports |
DE2733270C2 (de) * | 1977-07-22 | 1984-07-19 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Ausbausteuerung für einen schreitenden hydraulischen Ausbau |
DE3002818C2 (de) * | 1980-01-26 | 1984-02-23 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Einrichtung zur Steuerung hydraulischer Vorschubzylinder, insbesondere für den Vorschub von Schiebekappen eines Schreitausbaus |
DE3212747A1 (de) * | 1982-04-06 | 1983-10-06 | Gewerk Eisenhuette Westfalia | Einrichtung zur hubsteuerung einer zylinddergruppe eines hydraulischen ausbausystems, insbesondere zum setzen der stempel einer schreitausbaueinheit |
GB9009859D0 (en) * | 1990-05-02 | 1990-06-27 | Meco Mining Equip | A mine roof support |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE558976A (US20110009641A1-20110113-C00116.png) * | ||||
US2585297A (en) * | 1949-05-23 | 1952-02-12 | Rupert Diecasting Company | Aluminum die-casting machine |
US3198083A (en) * | 1963-05-13 | 1965-08-03 | Dowty Mining Equipment Ltd | Control system for mine roof supports |
GB1022469A (en) * | 1964-02-11 | 1966-03-16 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
-
1967
- 1967-11-08 GB GB5084767A patent/GB1228381A/en not_active Expired
-
1968
- 1968-09-23 US US761562A patent/US3530490A/en not_active Expired - Lifetime
- 1968-10-25 DE DE1805229A patent/DE1805229C3/de not_active Expired
- 1968-10-31 AT AT1060768A patent/AT277117B/de not_active IP Right Cessation
- 1968-11-07 JP JP43081011A patent/JPS4839323B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AT277117B (de) | 1969-12-10 |
DE1805229A1 (de) | 1972-05-25 |
DE1805229C3 (de) | 1974-08-15 |
JPS4839323B1 (US20110009641A1-20110113-C00116.png) | 1973-11-22 |
US3530490A (en) | 1970-09-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1210015A (en) | Pressure indicating apparatus for hydraulic mine roof support rams | |
CA925542A (en) | Hydraulic boost device with auxiliary fluid supply | |
GB1228381A (US20110009641A1-20110113-C00116.png) | ||
FR1507753A (fr) | Soupape de surpression, notamment pour étançons de mine hydrauliques | |
GB1221528A (en) | Control arrangement for a hydraulic pit prop support unit | |
ES373046A1 (es) | Perfeccionamientos en los medios de sustentacion para te- chos de minas. | |
GB1269022A (en) | Improvements in or relating to advancing mine roof supports | |
ES384184A1 (es) | Un aparato de sosten de elevacion para un transportador de transbordo en trabajos subterraneos en galerias y tuneles. | |
GB1123201A (en) | Improvements in or relating to advancing mine roof support systems | |
GB1202358A (en) | Mine roof support systems | |
GB989592A (en) | Pressure-medium-actuated shifting device for a conveyor on which a coal plough is guided | |
GB1378513A (en) | Connection for use between mine roof support and conveyor | |
GB1031719A (en) | Improvements in or relating to hydraulic pressure gauges for hydraulic roof supports and supports incorporating same | |
GB999671A (en) | Improved mine roof supports | |
GB856720A (en) | Improvements in roof supports for underground mines | |
GB1168791A (en) | Improvements relating to Roof Supports for Mine Workings | |
GB931097A (en) | Improvements relating to mine supporting equipment | |
GB1110831A (en) | Flow meter monitoring of a system of mine roof supports | |
GB1295075A (US20110009641A1-20110113-C00116.png) | ||
GB984790A (en) | Improvements in or relating to mine roof supports | |
GB1491466A (en) | Self-advancing mine roof supports | |
GB992291A (en) | Improvements relating to hydraulically operated equipment | |
GB972595A (en) | Improvements in and relating to hydraulic mine roof supports | |
GB1120896A (en) | Improvements in or relating to hydraulic pit props | |
GB1093778A (en) | Fluid-pressure-operated prop |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
414F | Notice of opposition given (sect. 14/1949) | ||
414A | Case decided by the comptroller ** specification amended (sect. 14/1949) | ||
SPA | Amended specification published | ||
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |