BE676776A - - Google Patents

Info

Publication number
BE676776A
BE676776A BE676776DA BE676776A BE 676776 A BE676776 A BE 676776A BE 676776D A BE676776D A BE 676776DA BE 676776 A BE676776 A BE 676776A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE676776A publication Critical patent/BE676776A/xx

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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
    • 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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
BE676776D 1965-02-22 1966-02-21 BE676776A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0042902 1965-02-22

Publications (1)

Publication Number Publication Date
BE676776A true BE676776A (enrdf_load_html_response) 1966-08-22

Family

ID=7127044

Family Applications (1)

Application Number Title Priority Date Filing Date
BE676776D BE676776A (enrdf_load_html_response) 1965-02-22 1966-02-21

Country Status (5)

Country Link
US (1) US3415065A (enrdf_load_html_response)
BE (1) BE676776A (enrdf_load_html_response)
FR (1) FR1467502A (enrdf_load_html_response)
GB (1) GB1132252A (enrdf_load_html_response)
NL (1) NL6602192A (enrdf_load_html_response)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156037B (de) * 1961-03-24 1963-10-24 Gewerk Eisenhuette Westfalia Selbsttaetig rueckbares Ausbaugestell fuer bergmaennische Gewinnungsbetriebe
DE1161834B (de) * 1962-06-14 1964-01-30 Gewerk Eisenhuette Westfalia Selbsttaetig rueckbares Ausbaugestell fuer bergmaennische Gewinnungsbetriebe

Also Published As

Publication number Publication date
GB1132252A (en) 1968-10-30
NL6602192A (enrdf_load_html_response) 1966-08-23
FR1467502A (fr) 1967-01-27
US3415065A (en) 1968-12-10

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