FR1460422A - Method and installation for controlling an apparatus actuated by a fluid - Google Patents

Method and installation for controlling an apparatus actuated by a fluid

Info

Publication number
FR1460422A
FR1460422A FR42953A FR42953A FR1460422A FR 1460422 A FR1460422 A FR 1460422A FR 42953 A FR42953 A FR 42953A FR 42953 A FR42953 A FR 42953A FR 1460422 A FR1460422 A FR 1460422A
Authority
FR
France
Prior art keywords
fluid
installation
controlling
apparatus actuated
actuated
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
FR42953A
Other languages
French (fr)
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Application granted granted Critical
Publication of FR1460422A publication Critical patent/FR1460422A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
    • E21D23/20—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms for sequential movement, e.g. one behind the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Measuring Volume Flow (AREA)
FR42953A 1964-12-22 1965-12-20 Method and installation for controlling an apparatus actuated by a fluid Expired FR1460422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5202964A GB1110831A (en) 1964-12-22 1964-12-22 Flow meter monitoring of a system of mine roof supports

Publications (1)

Publication Number Publication Date
FR1460422A true FR1460422A (en) 1966-11-25

Family

ID=10462359

Family Applications (1)

Application Number Title Priority Date Filing Date
FR42953A Expired FR1460422A (en) 1964-12-22 1965-12-20 Method and installation for controlling an apparatus actuated by a fluid

Country Status (2)

Country Link
FR (1) FR1460422A (en)
GB (1) GB1110831A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107201911A (en) * 2017-06-21 2017-09-26 徐州中安科技股份有限公司 Top cover device of hydraulic prop

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168409B (en) * 1984-12-15 1988-06-08 Dobson Park Ind Hydraulic ram extension measuring device
CN113323699B (en) * 2021-06-08 2022-06-07 中国矿业大学 Method for accurately identifying fault source of hydraulic support system based on data driving

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107201911A (en) * 2017-06-21 2017-09-26 徐州中安科技股份有限公司 Top cover device of hydraulic prop

Also Published As

Publication number Publication date
GB1110831A (en) 1968-04-24

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