CS543784A2 - Reinforcing protective mine casing pipe - Google Patents

Reinforcing protective mine casing pipe

Info

Publication number
CS543784A2
CS543784A2 CS845437A CS543784A CS543784A2 CS 543784 A2 CS543784 A2 CS 543784A2 CS 845437 A CS845437 A CS 845437A CS 543784 A CS543784 A CS 543784A CS 543784 A2 CS543784 A2 CS 543784A2
Authority
CS
Czechoslovakia
Prior art keywords
casing pipe
reinforcing protective
mine casing
protective mine
reinforcing
Prior art date
Application number
CS845437A
Other languages
Czech (cs)
Inventor
Rudolf Korbel
Stanislaw Romanowicz
Jan Pacha
Kornel Olender
Jozef Maciejczyk
Original Assignee
Ct Mechanizacji Gornictva
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
Priority claimed from PL24306583A external-priority patent/PL139781B1/en
Priority claimed from PL24449383A external-priority patent/PL139959B1/en
Priority claimed from PL24453283A external-priority patent/PL140157B1/en
Priority claimed from PL24563684A external-priority patent/PL142149B1/en
Application filed by Ct Mechanizacji Gornictva filed Critical Ct Mechanizacji Gornictva
Publication of CS543784A2 publication Critical patent/CS543784A2/en

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
    • 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face

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)
  • Helmets And Other Head Coverings (AREA)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)
  • Earth Drilling (AREA)
CS845437A 1983-07-16 1984-07-13 Reinforcing protective mine casing pipe CS543784A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL24306583A PL139781B1 (en) 1983-07-16 1983-07-16 Shield-type roof supports
PL24449383A PL139959B1 (en) 1983-11-10 1983-11-10 Shield-type roof support
PL24453283A PL140157B1 (en) 1983-11-11 1983-11-11 Lemniscate type roof support
PL24563684A PL142149B1 (en) 1984-01-05 1984-01-05 Hydraulic system for shielded type roof supports

Publications (1)

Publication Number Publication Date
CS543784A2 true CS543784A2 (en) 1991-07-16

Family

ID=27484418

Family Applications (1)

Application Number Title Priority Date Filing Date
CS845437A CS543784A2 (en) 1983-07-16 1984-07-13 Reinforcing protective mine casing pipe

Country Status (4)

Country Link
CS (1) CS543784A2 (en)
DE (2) DE3426179A1 (en)
HU (1) HU190935B (en)
YU (1) YU122684A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2019346421A1 (en) 2018-09-24 2021-04-29 Joy Global Underground Mining Llc Roof support including extendable links

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507263C2 (en) * 1975-02-20 1984-09-13 Johannes 4300 Essen Winkler Shield support with stabilization device
DE2605068C3 (en) * 1976-02-10 1978-12-14 Thyssen Industrie Ag, 4300 Essen Cap and break shield construction for a shield support frame
DE2721381C3 (en) * 1977-05-12 1986-03-27 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Device for stabilizing a hydraulic expansion unit
DE2750852B1 (en) 1977-11-14 1979-03-29 Hemscheidt Maschf Hermann Device for stabilizing the hanging end cap of a hydraulic support frame
DE2743590A1 (en) * 1977-09-28 1979-04-05 Kloeckner Werke Ag Mine support with hinged floor and roof members - has floor member attached to face conveyor by double cylinder
US4333694A (en) * 1980-11-18 1982-06-08 Textron Inc. Antifriction bearing with removable seal means
FR2540932B3 (en) * 1983-02-16 1985-12-13 Bennes Marrel WALKING SUPPORT PILE, ESPECIALLY FOR UNDERGROUND MINES

Also Published As

Publication number Publication date
DE3426179A1 (en) 1985-01-31
HUT37970A (en) 1986-03-28
HU190935B (en) 1986-12-28
DE3426179C2 (en) 1988-06-01
DE3448126C2 (en) 1988-10-13
YU122684A (en) 1988-06-30

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