CA1190055A - Mine prop - Google Patents

Mine prop

Info

Publication number
CA1190055A
CA1190055A CA000427583A CA427583A CA1190055A CA 1190055 A CA1190055 A CA 1190055A CA 000427583 A CA000427583 A CA 000427583A CA 427583 A CA427583 A CA 427583A CA 1190055 A CA1190055 A CA 1190055A
Authority
CA
Canada
Prior art keywords
prop
core
cuts
axis
timber
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA000427583A
Other languages
English (en)
French (fr)
Inventor
Hagen Halbich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H L and H Timber Products Ltd Pty
Original Assignee
H L and H Timber Products Ltd Pty
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 H L and H Timber Products Ltd Pty filed Critical H L and H Timber Products Ltd Pty
Application granted granted Critical
Publication of CA1190055A publication Critical patent/CA1190055A/en
Expired legal-status Critical Current

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
    • E21D15/02—Non-telescopic props

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)
  • Rod-Shaped Construction Members (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
CA000427583A 1982-08-06 1983-05-06 Mine prop Expired CA1190055A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA825699 1982-08-06
ZA82/5699 1982-08-06

Publications (1)

Publication Number Publication Date
CA1190055A true CA1190055A (en) 1985-07-09

Family

ID=25576203

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000427583A Expired CA1190055A (en) 1982-08-06 1983-05-06 Mine prop

Country Status (6)

Country Link
US (1) US4915339A (enExample)
AU (1) AU554264B2 (enExample)
CA (1) CA1190055A (enExample)
DE (1) DE3315243A1 (enExample)
FR (1) FR2531485A1 (enExample)
GB (1) GB2125465B (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2062879C (en) * 1991-03-13 2005-04-19 Frans Roelof Petrus Pienaar Yieldable load support
AU681729B2 (en) * 1994-01-13 1997-09-04 Hl & H Timber Products (Proprietary) Limited Support prop assemblies
WO2001014692A1 (en) * 1999-08-20 2001-03-01 Jan Hendrik Woller Yielding mine prop
US6910834B2 (en) * 2003-05-27 2005-06-28 Burrell Mining Products, Inc. Mine prop
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
US10774641B2 (en) * 2016-02-24 2020-09-15 Micon Load support drum with resilient core member
US11053683B2 (en) * 2018-01-24 2021-07-06 Strata Products Worldwide, Llc Apparatus for controlling yield performance of props for roofs, and methods
US10883366B2 (en) 2018-10-24 2021-01-05 Crosscut Enterprises LLC Mine roof support

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE83945C (enExample) *
GB191228784A (en) * 1912-05-20 1913-01-30 Alwin Lantzsch Improvements in Miners' Props.
GB118969A (en) * 1918-01-05 1918-09-19 Mark Fryar Improvements in Pit Props.
GB319091A (en) * 1928-07-09 1929-09-19 Frank Stuart Atkinson Pit and like props and shores
GB814350A (en) * 1956-12-13 1959-06-03 Karl Theodor Jasper Improvements in roof supports for mine workings
DE1238420B (de) * 1964-11-04 1967-04-13 Paurat F Stempel aus Holz fuer den Ausbau von Untertageraeumen, insbesondere fuer den Streckenausbau
DE3066863D1 (en) * 1979-11-02 1984-04-12 Mine Support Syst Pty Ltd Timber prop
US4534531A (en) * 1980-07-22 1985-08-13 Brown Allan H G Elongated prop for supporting a load

Also Published As

Publication number Publication date
US4915339A (en) 1990-04-10
GB2125465A (en) 1984-03-07
AU554264B2 (en) 1986-08-14
FR2531485A1 (fr) 1984-02-10
GB8310725D0 (en) 1983-05-25
AU1403483A (en) 1984-02-09
DE3315243A1 (de) 1984-04-05
FR2531485B3 (enExample) 1985-05-10
GB2125465B (en) 1986-03-05

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry