AT332343B - CARRYING DEVICE - Google Patents

CARRYING DEVICE

Info

Publication number
AT332343B
AT332343B AT188774A AT188774A AT332343B AT 332343 B AT332343 B AT 332343B AT 188774 A AT188774 A AT 188774A AT 188774 A AT188774 A AT 188774A AT 332343 B AT332343 B AT 332343B
Authority
AT
Austria
Prior art keywords
carrying device
carrying
Prior art date
Application number
AT188774A
Other languages
German (de)
Other versions
ATA188774A (en
Original Assignee
Mine Support Systems Holdings
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 ZA731578A external-priority patent/ZA731578B/en
Application filed by Mine Support Systems Holdings filed Critical Mine Support Systems Holdings
Publication of ATA188774A publication Critical patent/ATA188774A/en
Application granted granted Critical
Publication of AT332343B publication Critical patent/AT332343B/en

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
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Vibration Dampers (AREA)
AT188774A 1973-03-07 1974-03-07 CARRYING DEVICE AT332343B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA731578A ZA731578B (en) 1973-03-07 1973-03-07 Compressible mine supports
ZA735579 1973-08-15

Publications (2)

Publication Number Publication Date
ATA188774A ATA188774A (en) 1976-01-15
AT332343B true AT332343B (en) 1976-09-27

Family

ID=27131073

Family Applications (1)

Application Number Title Priority Date Filing Date
AT188774A AT332343B (en) 1973-03-07 1974-03-07 CARRYING DEVICE

Country Status (7)

Country Link
JP (1) JPS5040401A (en)
AT (1) AT332343B (en)
AU (1) AU6632974A (en)
BR (1) BR7401725D0 (en)
DE (1) DE2410976A1 (en)
FR (1) FR2220665B1 (en)
ZM (1) ZM4574A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19503071B4 (en) * 1994-08-25 2004-02-12 Sz Schacht- Und Streckenausbau Gmbh Telescopic stamp for use in underground mining, tunneling and building construction
US7909542B2 (en) * 2002-11-08 2011-03-22 Grinaka-Lta Limited Mine support
US20170130580A1 (en) * 2012-08-30 2017-05-11 Burrell Mining Products, Inc. Telescopic mine roof support
US8851805B2 (en) 2012-08-30 2014-10-07 Burrell Mining Products, Inc. Telescopic mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
WO2018017948A1 (en) * 2016-07-21 2018-01-25 Burrell Mining Products, Inc. Telescopic mine roof support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB941768A (en) * 1961-03-06 1963-11-13 Dowty Mining Equipment Ltd Telescopic pit props having external guard shrouds
FR1316824A (en) * 1962-03-02 1963-02-01 Framework for mining
GB1016292A (en) * 1963-05-15 1966-01-12 Stewarts & Lloyds Ltd A yielding strut
GB1227359A (en) * 1968-04-01 1971-04-07

Also Published As

Publication number Publication date
AU6632974A (en) 1975-09-11
ZM4574A1 (en) 1975-06-23
ATA188774A (en) 1976-01-15
DE2410976A1 (en) 1974-09-12
JPS5040401A (en) 1975-04-14
FR2220665B1 (en) 1978-01-06
BR7401725D0 (en) 1974-11-19
FR2220665A1 (en) 1974-10-04

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee