AT293310B - Wandering longwall mining - Google Patents

Wandering longwall mining

Info

Publication number
AT293310B
AT293310B AT1033069A AT1033069A AT293310B AT 293310 B AT293310 B AT 293310B AT 1033069 A AT1033069 A AT 1033069A AT 1033069 A AT1033069 A AT 1033069A AT 293310 B AT293310 B AT 293310B
Authority
AT
Austria
Prior art keywords
wandering
longwall mining
longwall
mining
wandering longwall
Prior art date
Application number
AT1033069A
Other languages
German (de)
Original Assignee
Dobson Ltd W E & F
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dobson Ltd W E & F filed Critical Dobson Ltd W E & F
Application granted granted Critical
Publication of AT293310B publication Critical patent/AT293310B/en

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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Tents Or Canopies (AREA)
AT1033069A 1968-11-02 1969-11-03 Wandering longwall mining AT293310B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5203468 1968-11-02

Publications (1)

Publication Number Publication Date
AT293310B true AT293310B (en) 1971-10-11

Family

ID=10462375

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1033069A AT293310B (en) 1968-11-02 1969-11-03 Wandering longwall mining

Country Status (7)

Country Link
US (1) US3631681A (en)
JP (1) JPS4931162B1 (en)
AT (1) AT293310B (en)
DE (1) DE1954645A1 (en)
ES (1) ES373046A1 (en)
FR (1) FR2022469A1 (en)
GB (1) GB1289299A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL210760A1 (en) * 1977-12-13 1979-09-24 Bochumer Eisen Heintzmann VALVE TIMING ON SLIDING FRAME HOUSING
DE8318615U1 (en) * 1983-06-28 1983-11-03 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel ALIGNMENT CYLINDER FOR SHIELD REMOVAL
US4679856A (en) * 1983-09-21 1987-07-14 Klockner-Becorit Gmbh Mine self-advancing roof support and method of relocating a mine winning face equipped with self-advancing roof support
GB2164987A (en) * 1984-09-26 1986-04-03 Dowty Mining Equipment Ltd Mine roof supports
US5584611A (en) * 1994-11-22 1996-12-17 Long-Airdox Roof support for underground excavations
US6422962B1 (en) * 2000-04-11 2002-07-23 Litens Automotive Partnership Timing belt tensioner with a backstop device with controlled one-way mechanism
CN100507212C (en) * 2002-12-17 2009-07-01 迪芬巴赫控制系统股份有限公司 Coal face support in a mine
CN103557015A (en) * 2013-08-06 2014-02-05 四川华蓥山广能集团嘉华机械有限责任公司 Multi-expansion hydraulic support column

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1364412A (en) * 1963-07-24 1964-06-19 Gewerk Eisenhuette Westfalia Mobile hydraulic support for use underground in mines
DE1236451B (en) * 1963-12-21 1967-03-16 Karl Maria Groetschel Dipl Ing Guide element that can be used between two adjacent expansion units
GB1079202A (en) * 1964-10-02 1967-08-16 Wild A G & Co Ltd Improvements in or relating to roof support units for mines and the like

Also Published As

Publication number Publication date
DE1954645A1 (en) 1970-05-06
GB1289299A (en) 1972-09-13
FR2022469A1 (en) 1970-07-31
US3631681A (en) 1972-01-04
JPS4931162B1 (en) 1974-08-20
ES373046A1 (en) 1971-12-01

Similar Documents

Publication Publication Date Title
AT286064B (en) Twist drill
CH492905A (en) poetry
CH495189A (en) Boring bar insert
DE6939179U (en) DRILL SET
AT250689B (en) Scriber mine
BR6908452D0 (en) UNDERWATER MINING
AT293310B (en) Wandering longwall mining
AT277117B (en) Wandering longwall mining
AT283784B (en) Compton spectrometer
AT296189B (en) Rock drill
CH482606A (en) Conveyor
AT264425B (en) Longwall construction element for underground mining operations
CH520262A (en) Rock drill
CH478364A (en) poetry
AT263594B (en) Rock drill
AT293309B (en) Face device for underground mining
CH474740A (en) Jumping mine
IT972008B (en) DEFLAGRATOR FOR LAND MINE
AT259490B (en) Migrating hydraulic longwall mining
CH517258A (en) Seal construction
CH466351A (en) Wear bar
CH515196A (en) Explosives slurry
AT293980B (en) Rock drill
FR1434369A (en) Improvements to tunnel construction
AT285493B (en) Rock drilling machine

Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee