ES354667A1 - Un dispositivo de entibacion. - Google Patents

Un dispositivo de entibacion.

Info

Publication number
ES354667A1
ES354667A1 ES354667A ES354667A ES354667A1 ES 354667 A1 ES354667 A1 ES 354667A1 ES 354667 A ES354667 A ES 354667A ES 354667 A ES354667 A ES 354667A ES 354667 A1 ES354667 A1 ES 354667A1
Authority
ES
Spain
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
ES354667A
Other languages
English (en)
Spanish (es)
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 ES354667A1 publication Critical patent/ES354667A1/es
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)
ES354667A 1965-02-22 1968-06-04 Un dispositivo de entibacion. Expired ES354667A1 (es)

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
ES354667A1 true ES354667A1 (es) 1970-02-16

Family

ID=7129745

Family Applications (1)

Application Number Title Priority Date Filing Date
ES354667A Expired ES354667A1 (es) 1965-02-22 1968-06-04 Un dispositivo de entibacion.

Country Status (3)

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

Also Published As

Publication number Publication date
GB1174206A (en) 1969-12-17
FR95558E (fr) 1971-03-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19860226