GB896428A - Pressure relief valve assembly for pit props - Google Patents

Pressure relief valve assembly for pit props

Info

Publication number
GB896428A
GB896428A GB24911/58A GB2491158A GB896428A GB 896428 A GB896428 A GB 896428A GB 24911/58 A GB24911/58 A GB 24911/58A GB 2491158 A GB2491158 A GB 2491158A GB 896428 A GB896428 A GB 896428A
Authority
GB
United Kingdom
Prior art keywords
closure
closures
auxiliary
aug
duct
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
GB24911/58A
Other languages
English (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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB896428A publication Critical patent/GB896428A/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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

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)
  • Mechanically-Actuated Valves (AREA)
GB24911/58A 1957-08-05 1958-08-01 Pressure relief valve assembly for pit props Expired GB896428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE896428X 1957-08-05

Publications (1)

Publication Number Publication Date
GB896428A true GB896428A (en) 1962-05-16

Family

ID=6848209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24911/58A Expired GB896428A (en) 1957-08-05 1958-08-01 Pressure relief valve assembly for pit props

Country Status (3)

Country Link
BE (1) BE570089A (fr)
FR (1) FR1201105A (fr)
GB (1) GB896428A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141733A (en) * 1983-06-06 1985-01-03 Mobil Oil Corp Improved catalytic hydrodewaxing process
GB2152635A (en) * 1984-01-05 1985-08-07 Dobson Park Ind Valve devices
CN112343564A (zh) * 2020-11-03 2021-02-09 中国石油天然气股份有限公司 气井井下节流器气嘴自行掉落机构及使用方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141733A (en) * 1983-06-06 1985-01-03 Mobil Oil Corp Improved catalytic hydrodewaxing process
GB2152635A (en) * 1984-01-05 1985-08-07 Dobson Park Ind Valve devices
CN112343564A (zh) * 2020-11-03 2021-02-09 中国石油天然气股份有限公司 气井井下节流器气嘴自行掉落机构及使用方法

Also Published As

Publication number Publication date
FR1201105A (fr) 1959-12-28
BE570089A (fr)

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