AT353213B - PIT REMOVAL UNIT - Google Patents

PIT REMOVAL UNIT

Info

Publication number
AT353213B
AT353213B AT843677A AT843677A AT353213B AT 353213 B AT353213 B AT 353213B AT 843677 A AT843677 A AT 843677A AT 843677 A AT843677 A AT 843677A AT 353213 B AT353213 B AT 353213B
Authority
AT
Austria
Prior art keywords
removal unit
pit removal
pit
unit
removal
Prior art date
Application number
AT843677A
Other languages
German (de)
Other versions
ATA843677A (en
Inventor
Wincenty Dipl Ing Pretor
Edward Dipl Ing Rozmus
Zygmunt Dipl Ing Noculak
Henryk Ing Zych
Adolf Dipl Ing Drewniak
Original Assignee
Ts Osrodek P K Maszyn Gorniczy
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 Ts Osrodek P K Maszyn Gorniczy filed Critical Ts Osrodek P K Maszyn Gorniczy
Publication of ATA843677A publication Critical patent/ATA843677A/en
Application granted granted Critical
Publication of AT353213B publication Critical patent/AT353213B/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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Earth Drilling (AREA)
AT843677A 1976-11-24 1977-11-24 PIT REMOVAL UNIT AT353213B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL19388276 1976-11-24

Publications (2)

Publication Number Publication Date
ATA843677A ATA843677A (en) 1979-04-15
AT353213B true AT353213B (en) 1979-11-12

Family

ID=19979485

Family Applications (1)

Application Number Title Priority Date Filing Date
AT843677A AT353213B (en) 1976-11-24 1977-11-24 PIT REMOVAL UNIT

Country Status (4)

Country Link
AT (1) AT353213B (en)
DE (1) DE2752112A1 (en)
GB (1) GB1573790A (en)
HU (1) HU174112B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334004C1 (en) * 1983-09-21 1985-04-04 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Step support and method for moving an extraction strut equipped with step support
US4679856A (en) * 1983-09-21 1987-07-14 Klockner-Becorit Gmbh Mine self-advancing roof support and method of relocating a mine winning face equipped with self-advancing roof support

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102373936A (en) * 2010-08-24 2012-03-14 李大军 Hydraulic telescopic bracket for downhole coal mine and downhole coal mining method using same
CN103174441B (en) * 2013-03-15 2014-12-03 辽宁工程技术大学 Adjustable double-resistance energy absorption anti-impact hydraulic support frame
CN112302698B (en) * 2020-10-28 2022-08-12 贵州理工学院 A folding hydraulic roadway support device for easy handling
CN117108331B (en) * 2023-10-23 2024-01-02 山西新龙重工高分子科技有限公司 Unit type hydraulic support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334004C1 (en) * 1983-09-21 1985-04-04 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Step support and method for moving an extraction strut equipped with step support
US4679856A (en) * 1983-09-21 1987-07-14 Klockner-Becorit Gmbh Mine self-advancing roof support and method of relocating a mine winning face equipped with self-advancing roof support

Also Published As

Publication number Publication date
HU174112B (en) 1979-11-28
ATA843677A (en) 1979-04-15
DE2752112A1 (en) 1978-06-01
GB1573790A (en) 1980-08-28

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee