AT320565B - Advancing shield support unit - Google Patents

Advancing shield support unit

Info

Publication number
AT320565B
AT320565B AT782972A AT782972A AT320565B AT 320565 B AT320565 B AT 320565B AT 782972 A AT782972 A AT 782972A AT 782972 A AT782972 A AT 782972A AT 320565 B AT320565 B AT 320565B
Authority
AT
Austria
Prior art keywords
support unit
shield support
advancing shield
advancing
unit
Prior art date
Application number
AT782972A
Other languages
German (de)
Inventor
Ing Matyas Martinko Dipl
Ing Dr Ferenc Martos Dipl
Ing Karoly Hazai Dipl
Original Assignee
Banyaszati Ki
Varpalotai Szenbanyak
Orszagos Banyagepgyarto Vall
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 Banyaszati Ki, Varpalotai Szenbanyak, Orszagos Banyagepgyarto Vall filed Critical Banyaszati Ki
Application granted granted Critical
Publication of AT320565B publication Critical patent/AT320565B/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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/063—Retractable cantilever extensions therefor
    • 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

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
AT782972A 1971-09-28 1972-09-12 Advancing shield support unit AT320565B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUBA002649 HU176912B (en) 1971-09-28 1971-09-28 Stepping shield supporting device

Publications (1)

Publication Number Publication Date
AT320565B true AT320565B (en) 1975-02-25

Family

ID=10993334

Family Applications (1)

Application Number Title Priority Date Filing Date
AT782972A AT320565B (en) 1971-09-28 1972-09-12 Advancing shield support unit

Country Status (11)

Country Link
JP (1) JPS565920B2 (en)
AT (1) AT320565B (en)
BE (1) BE789315A (en)
CS (1) CS157005B2 (en)
DE (2) DE2244911C3 (en)
ES (1) ES407051A1 (en)
GB (1) GB1381198A (en)
HU (1) HU176912B (en)
PL (1) PL78410B1 (en)
RO (1) RO60607A (en)
YU (1) YU35181B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833532B2 (en) * 1975-02-26 1983-07-20 キヤノン株式会社 Daiko Key Zoom Lens
DE2634014C3 (en) * 1976-07-29 1981-03-26 Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen Shield support frame
JPS53131852A (en) * 1977-04-22 1978-11-17 Nippon Chemical Ind Tele zoom lens
JPS60419A (en) * 1984-04-20 1985-01-05 Nippon Kogaku Kk <Nikon> Telephoto zoom lens
JPH0629907B2 (en) * 1985-08-22 1994-04-20 キヤノン株式会社 Zoom lens with large aperture ratio
CN101943016A (en) * 2010-08-17 2011-01-12 天地科技股份有限公司 Novel shielding full-mechanized mining hydraulic bracket for extremely thin coal bed
CN104858007B (en) * 2015-06-04 2017-08-18 中煤张家口煤矿机械有限责任公司 Fully-mechanized mining working conveying unloading area electricity is straight to drive toothed roller type continuous crushing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257722B (en) * 1966-02-16 1968-01-04 Hansjoachim Von Hippel Dr Ing Stamp extension that can be moved under load
FR1503990A (en) * 1966-10-11 1967-12-01 Bennes Marrel Improvements to support piles, especially for mines or underground work sites

Also Published As

Publication number Publication date
YU35181B (en) 1980-09-25
JPS4841902A (en) 1973-06-19
HU176912B (en) 1981-06-28
RO60607A (en) 1976-10-15
DE2244911A1 (en) 1973-04-05
PL78410B1 (en) 1975-06-30
JPS565920B2 (en) 1981-02-07
DE2244911C3 (en) 1981-08-20
ES407051A1 (en) 1975-11-16
DE7233741U (en) 1982-07-15
DE2244911B2 (en) 1980-10-02
CS157005B2 (en) 1974-08-23
GB1381198A (en) 1975-01-22
BE789315A (en) 1973-01-15
YU244872A (en) 1979-12-31

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Legal Events

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