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GB2070666B - Props - Google Patents

Props

Info

Publication number
GB2070666B
GB2070666B GB8007287A GB8007287A GB2070666B GB 2070666 B GB2070666 B GB 2070666B GB 8007287 A GB8007287 A GB 8007287A GB 8007287 A GB8007287 A GB 8007287A GB 2070666 B GB2070666 B GB 2070666B
Authority
GB
United Kingdom
Prior art keywords
props
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
GB8007287A
Other versions
GB2070666A (en
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.)
Burke Pry Ltd D J
Original Assignee
Burke Pry Ltd D J
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 Burke Pry Ltd D J filed Critical Burke Pry Ltd D J
Priority to GB8007287A priority Critical patent/GB2070666B/en
Publication of GB2070666A publication Critical patent/GB2070666A/en
Application granted granted Critical
Publication of GB2070666B publication Critical patent/GB2070666B/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
    • E21D15/14—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

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)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
GB8007287A 1980-03-04 1980-03-04 Props Expired GB2070666B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8007287A GB2070666B (en) 1980-03-04 1980-03-04 Props

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8007287A GB2070666B (en) 1980-03-04 1980-03-04 Props

Publications (2)

Publication Number Publication Date
GB2070666A GB2070666A (en) 1981-09-09
GB2070666B true GB2070666B (en) 1983-10-12

Family

ID=10511843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8007287A Expired GB2070666B (en) 1980-03-04 1980-03-04 Props

Country Status (1)

Country Link
GB (1) GB2070666B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726714A (en) * 1985-04-05 1988-02-23 Macarthur Eugene D Self adjusting structure support
DE4316390C1 (en) * 1993-05-17 1994-04-21 Volker Merz Consolidation support for mine or tunnel - has hollow upper and lower support parts, upper part being pushable into lower part, and floor of upper part being formed as plate
US6394707B1 (en) * 1997-05-08 2002-05-28 Jack Kennedy Metal Products & Buildings, Inc. Yieldable mine roof support
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
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support

Also Published As

Publication number Publication date
GB2070666A (en) 1981-09-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee