NL290436A - - Google Patents

Info

Publication number
NL290436A
NL290436A NL290436DA NL290436A NL 290436 A NL290436 A NL 290436A NL 290436D A NL290436D A NL 290436DA NL 290436 A NL290436 A NL 290436A
Authority
NL
Netherlands
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.)
Publication of NL290436A publication Critical patent/NL290436A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props
    • E21D15/545—Details of the ends of props hydraulic or pneumatic
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/48—Chocks or the like
    • E21D15/486—Chocks or the like with essential hydraulic or pneumatic details
    • 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
    • E21D23/0418—Positioning devices and stabilizing means for the props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Prostheses (AREA)
  • Tents Or Canopies (AREA)
NL290436D 1962-03-20 NL290436A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR891572A FR1325740A (fr) 1962-03-20 1962-03-20 Dispositif de centrage utilisable notamment pour le centrage d'éléments de soutènement

Publications (1)

Publication Number Publication Date
NL290436A true NL290436A (enrdf_load_stackoverflow)

Family

ID=8774884

Family Applications (1)

Application Number Title Priority Date Filing Date
NL290436D NL290436A (enrdf_load_stackoverflow) 1962-03-20

Country Status (6)

Country Link
US (1) US3184206A (enrdf_load_stackoverflow)
FR (1) FR1325740A (enrdf_load_stackoverflow)
GB (1) GB980658A (enrdf_load_stackoverflow)
LU (1) LU43357A1 (enrdf_load_stackoverflow)
NL (1) NL290436A (enrdf_load_stackoverflow)
OA (1) OA00407A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289506C2 (de) * 1963-08-29 1974-03-28 Hydraulisches abstuetzelement
US5779210A (en) * 1996-02-09 1998-07-14 Canson; Barney Decorative clay pot hangers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1070311A (fr) * 1953-02-04 1954-07-22 Rech S Ind Et Minieres Soc Et Serrure à frottement pour étançon de mine
US2985419A (en) * 1957-04-13 1961-05-23 Mining Engineering Co Ltd Roof supports for mine workings
DE1034568B (de) * 1957-04-16 1958-07-24 Hoesch Werke Ag Stempelkopflager

Also Published As

Publication number Publication date
LU43357A1 (enrdf_load_stackoverflow) 1963-05-15
GB980658A (en) 1965-01-13
OA00407A (fr) 1966-05-15
FR1325740A (fr) 1963-05-03
US3184206A (en) 1965-05-18

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