GB8530585D0 - Hydraulic control system - Google Patents

Hydraulic control system

Info

Publication number
GB8530585D0
GB8530585D0 GB858530585A GB8530585A GB8530585D0 GB 8530585 D0 GB8530585 D0 GB 8530585D0 GB 858530585 A GB858530585 A GB 858530585A GB 8530585 A GB8530585 A GB 8530585A GB 8530585 D0 GB8530585 D0 GB 8530585D0
Authority
GB
United Kingdom
Prior art keywords
control system
hydraulic control
hydraulic
control
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.)
Withdrawn
Application number
GB858530585A
Other versions
GB2173241A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GWARECTWO MECH GORICTWA POLMAG
Original Assignee
GWARECTWO MECH GORICTWA POLMAG
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
Priority claimed from PL25104884A external-priority patent/PL144277B1/en
Priority claimed from PL25180285A external-priority patent/PL145742B1/en
Priority claimed from PL25231785A external-priority patent/PL146749B1/en
Application filed by GWARECTWO MECH GORICTWA POLMAG filed Critical GWARECTWO MECH GORICTWA POLMAG
Publication of GB8530585D0 publication Critical patent/GB8530585D0/en
Publication of GB2173241A publication Critical patent/GB2173241A/en
Withdrawn legal-status Critical Current

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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control

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)
GB08530585A 1984-12-17 1985-12-16 Hydraulic control system for a mining support Withdrawn GB2173241A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PL25104884A PL144277B1 (en) 1984-12-17 1984-12-17 Distribution valve
PL25180285A PL145742B1 (en) 1985-02-01 1985-02-01 Distribution valve
PL25231785A PL146749B1 (en) 1985-03-07 1985-03-07 Roof support hydraulic control system

Publications (2)

Publication Number Publication Date
GB8530585D0 true GB8530585D0 (en) 1986-01-22
GB2173241A GB2173241A (en) 1986-10-08

Family

ID=27354060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08530585A Withdrawn GB2173241A (en) 1984-12-17 1985-12-16 Hydraulic control system for a mining support

Country Status (1)

Country Link
GB (1) GB2173241A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019607C2 (en) * 1990-06-20 1994-02-17 Hemscheidt Maschf Hermann Control system for a strut extension frame
DE112008002215A5 (en) * 2007-08-23 2010-06-17 Tiefenbach Control Systems Gmbh Extension frame for longwall mining in mines
PL2378059T3 (en) * 2010-04-16 2013-05-31 S A Armstrong Ltd Improvements in and relating to long wall hydraulic supply systems

Also Published As

Publication number Publication date
GB2173241A (en) 1986-10-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)