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FR58581E - Support system for mining - Google Patents

Support system for mining

Info

Publication number
FR58581E
FR58581E FR58581DA FR58581E FR 58581 E FR58581 E FR 58581E FR 58581D A FR58581D A FR 58581DA FR 58581 E FR58581 E FR 58581E
Authority
FR
France
Prior art keywords
mining
support system
support
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
Other languages
French (fr)
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.)
& Rech S Ind & Scien Tiques Et
Original Assignee
& Rech S Ind & Scien Tiques Et
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 & Rech S Ind & Scien Tiques Et filed Critical & Rech S Ind & Scien Tiques Et
Application granted granted Critical
Publication of FR58581E publication Critical patent/FR58581E/en
Expired legal-status Critical Current

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
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Tents Or Canopies (AREA)
  • Load-Engaging Elements For Cranes (AREA)
FR58581D 1947-03-20 1948-07-14 Support system for mining Expired FR58581E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR652701X 1947-03-20

Publications (1)

Publication Number Publication Date
FR58581E true FR58581E (en) 1954-01-27

Family

ID=9005391

Family Applications (4)

Application Number Title Priority Date Filing Date
FR960300D Expired FR960300A (en) 1947-03-20
FR58703D Expired FR58703E (en) 1947-03-20 1948-04-02 Support system for mining
FR58581D Expired FR58581E (en) 1947-03-20 1948-07-14 Support system for mining
FR59723D Expired FR59723E (en) 1947-03-20 1949-10-11 Support system for mining

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR960300D Expired FR960300A (en) 1947-03-20
FR58703D Expired FR58703E (en) 1947-03-20 1948-04-02 Support system for mining

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR59723D Expired FR59723E (en) 1947-03-20 1949-10-11 Support system for mining

Country Status (6)

Country Link
US (1) US2554210A (en)
BE (1) BE481299A (en)
DE (1) DE808581C (en)
FR (4) FR58703E (en)
GB (1) GB652701A (en)
NL (1) NL68832C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991097A (en) * 1948-07-08 1961-07-04 Vanwersch Aloys Connecting structure for beams of a roof support or the like
DE977123C (en) * 1948-07-30 1965-03-11 Karl Gerlach Articulated connection for caps, which can be swiveled under the action of a clamping device, for excavation work
US2729945A (en) * 1949-03-09 1956-01-10 Gerlach Karl Mine filling frame structure comprising props and pivotally connected girders
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines
FR1130143A (en) * 1955-07-27 1957-01-31 Articulated extension for mine supports
US3107902A (en) * 1958-12-29 1963-10-22 Joy Mfg Co Method of supporting mine roofs and supporting means therefor
DE1169881B (en) * 1960-09-09 1964-05-14 Hermann Schwarz Kommanditgesel In the longitudinal direction divided into several essentially equal pieces cap

Also Published As

Publication number Publication date
GB652701A (en) 1951-05-02
FR58703E (en) 1954-03-22
DE808581C (en) 1951-07-16
NL68832C (en)
BE481299A (en)
FR960300A (en) 1950-04-15
US2554210A (en) 1951-05-22
FR59723E (en) 1954-07-16

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