BE680651A - - Google Patents

Info

Publication number
BE680651A
BE680651A BE680651DA BE680651A BE 680651 A BE680651 A BE 680651A BE 680651D A BE680651D A BE 680651DA BE 680651 A BE680651 A BE 680651A
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 BE680651A publication Critical patent/BE680651A/xx

Links

Classifications

    • 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
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
    • 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
    • E21D23/063—Retractable cantilever extensions therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Bridges Or Land Bridges (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Soil Working Implements (AREA)
BE680651D 1965-05-08 1966-05-06 BE680651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG43547A DE1221177B (en) 1965-05-08 1965-05-08 Cap pull for retractable hydraulic support frames with front peg caps

Publications (1)

Publication Number Publication Date
BE680651A true BE680651A (en) 1966-11-07

Family

ID=7127212

Family Applications (1)

Application Number Title Priority Date Filing Date
BE680651D BE680651A (en) 1965-05-08 1966-05-06

Country Status (6)

Country Link
US (1) US3312071A (en)
BE (1) BE680651A (en)
DE (1) DE1221177B (en)
ES (1) ES326458A1 (en)
GB (1) GB1136275A (en)
NL (1) NL6606009A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483910B1 (en) * 1966-11-16 1969-11-06 Groetschel Dipl Ing Karl M Traveling extension unit in the form of a three-man team
DE7033832U (en) * 1970-09-11 1971-01-28 Gewerk Eisenhuette Westfalia HINGED CAP FOR HIKING EXTENSION OF MOUNTAIN MINE EXTRACTIONS.
GB1329125A (en) * 1970-12-02 1973-09-05 Gullick Dobson Ltd Mine roof supports
DE2105795A1 (en) * 1971-02-08 1972-10-05 Hermann Hemscheidt, Maschinenfabrik, 5600 Wuppertal Articulated connection for caps of hydraulic support
US3877234A (en) * 1973-05-04 1975-04-15 Banyaszati Kutato Intezet Advanceable shield support
FR2302411A1 (en) * 1975-02-27 1976-09-24 Lorraine Houilleres SUPPORT TELESCOPIC HAT
GB1502131A (en) * 1975-05-22 1978-02-22 Fletcher Sutcliffe Wild Ltd Mine roof supports

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900508C (en) * 1950-05-26 1953-12-28 Daimler Benz Ag Control device for fuel injection pumps
DE915206C (en) * 1951-11-28 1954-08-09 Alois Schubert Brush with insertable bristle holder
DE1164351B (en) * 1954-09-10 1964-03-05 Hansjoachim Von Hippel Dr Ing Vorpfaendkappe for stamp removal
FR1176512A (en) * 1956-06-05 1959-04-13 Hoesch Westfalenhuette Ag Timbering device
DE1182188B (en) * 1956-06-05 1964-11-26 Hoesch Ag Vorpfaendeinrichtung
FR1167165A (en) * 1957-02-22 1958-11-21 Mining stand
US3216202A (en) * 1962-11-09 1965-11-09 Gullick Ltd Roof supporting means for mines

Also Published As

Publication number Publication date
DE1221177B (en) 1966-07-21
ES326458A1 (en) 1967-03-01
NL6606009A (en) 1966-11-10
GB1136275A (en) 1968-12-11
US3312071A (en) 1967-04-04

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GEWERKSCHAFT EISENHUTTE WESTFALIA

Effective date: 19850506