GB1174206A - Improvements in or relating to movable support assemblies for mineral mines - Google Patents

Improvements in or relating to movable support assemblies for mineral mines

Info

Publication number
GB1174206A
GB1174206A GB2570768A GB2570768A GB1174206A GB 1174206 A GB1174206 A GB 1174206A GB 2570768 A GB2570768 A GB 2570768A GB 2570768 A GB2570768 A GB 2570768A GB 1174206 A GB1174206 A GB 1174206A
Authority
GB
United Kingdom
Prior art keywords
frames
relating
movable support
support assemblies
aligning device
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
Application number
GB2570768A
Other languages
English (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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB1174206A publication Critical patent/GB1174206A/en
Expired 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
    • E21D23/006—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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
GB2570768A 1965-02-22 1968-05-29 Improvements in or relating to movable support assemblies for mineral mines Expired GB1174206A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG0042902 1965-02-22
DEG0051386 1967-10-20

Publications (1)

Publication Number Publication Date
GB1174206A true GB1174206A (en) 1969-12-17

Family

ID=7129745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2570768A Expired GB1174206A (en) 1965-02-22 1968-05-29 Improvements in or relating to movable support assemblies for mineral mines

Country Status (3)

Country Link
ES (1) ES354667A1 (fr)
FR (1) FR95558E (fr)
GB (1) GB1174206A (fr)

Also Published As

Publication number Publication date
FR95558E (fr) 1971-03-26
ES354667A1 (es) 1970-02-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees