NL6516546A - - Google Patents

Info

Publication number
NL6516546A
NL6516546A NL6516546A NL6516546A NL6516546A NL 6516546 A NL6516546 A NL 6516546A NL 6516546 A NL6516546 A NL 6516546A NL 6516546 A NL6516546 A NL 6516546A NL 6516546 A NL6516546 A NL 6516546A
Authority
NL
Netherlands
Application number
NL6516546A
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 NL6516546A publication Critical patent/NL6516546A/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
    • E21D23/006—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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/0206—Hydraulically operated extension devices
    • 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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/066—Pivoted cantilever extensions therefor

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
NL6516546A 1965-03-06 1965-12-20 NL6516546A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH55384A DE1230745B (de) 1965-03-06 1965-03-06 An einer Kappe angelenkte Vorpfaendkappe

Publications (1)

Publication Number Publication Date
NL6516546A true NL6516546A (enrdf_load_html_response) 1966-09-07

Family

ID=7159019

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6516546A NL6516546A (enrdf_load_html_response) 1965-03-06 1965-12-20

Country Status (5)

Country Link
BE (1) BE675424A (enrdf_load_html_response)
DE (1) DE1230745B (enrdf_load_html_response)
FR (1) FR1464545A (enrdf_load_html_response)
GB (1) GB1079110A (enrdf_load_html_response)
NL (1) NL6516546A (enrdf_load_html_response)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819172C2 (de) * 1978-05-02 1985-01-24 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Vorpfändeinrichtung für hydraulischen Schreitausbau
GB2048355A (en) * 1979-05-08 1980-12-10 Gewerk Eisenhuette Westfalia Mine roof supports
GB2082236B (en) * 1980-08-06 1984-03-07 Dowty Mining Equipment Ltd Mine roof support with cantilever extension on roof plate
DE3107209A1 (de) * 1981-02-26 1982-09-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenanstellvorrichtung
DE3115984A1 (de) * 1981-04-22 1982-11-25 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenanstellvorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164351B (de) * 1954-09-10 1964-03-05 Hansjoachim Von Hippel Dr Ing Vorpfaendkappe fuer Stempelausbau

Also Published As

Publication number Publication date
DE1230745B (de) 1966-12-22
FR1464545A (fr) 1966-07-22
GB1079110A (en) 1967-08-16
BE675424A (enrdf_load_html_response) 1966-05-16

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