FR1198137A - étançon hydraulique - Google Patents

étançon hydraulique

Info

Publication number
FR1198137A
FR1198137A FR1198137DA FR1198137A FR 1198137 A FR1198137 A FR 1198137A FR 1198137D A FR1198137D A FR 1198137DA FR 1198137 A FR1198137 A FR 1198137A
Authority
FR
France
Prior art keywords
hydraulic prop
prop
hydraulic
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
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.)
Sagem SA
Original Assignee
Sagem SA
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 Sagem SA filed Critical Sagem SA
Application granted granted Critical
Publication of FR1198137A publication Critical patent/FR1198137A/fr
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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators

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)
FR1198137D 1958-06-03 1958-06-03 étançon hydraulique Expired FR1198137A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1198137T 1958-06-03

Publications (1)

Publication Number Publication Date
FR1198137A true FR1198137A (fr) 1959-12-04

Family

ID=9669957

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1198137D Expired FR1198137A (fr) 1958-06-03 1958-06-03 étançon hydraulique

Country Status (1)

Country Link
FR (1) FR1198137A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113771A (zh) * 2018-07-17 2019-01-01 北京天地玛珂电液控制系统有限公司 基于bp神经网络模型的液压支架电液自适应控制系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113771A (zh) * 2018-07-17 2019-01-01 北京天地玛珂电液控制系统有限公司 基于bp神经网络模型的液压支架电液自适应控制系统
CN109113771B (zh) * 2018-07-17 2020-06-16 北京天地玛珂电液控制系统有限公司 基于bp神经网络模型的液压支架电液自适应控制系统

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