BE661068A - - Google Patents

Info

Publication number
BE661068A
BE661068A BE661068A BE661068A BE661068A BE 661068 A BE661068 A BE 661068A BE 661068 A BE661068 A BE 661068A BE 661068 A BE661068 A BE 661068A BE 661068 A BE661068 A BE 661068A
Authority
BE
Belgium
Application number
BE661068A
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 filed Critical
Publication of BE661068A publication Critical patent/BE661068A/xx

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
    • 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0065—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices driven, or automatically, e.g. electrically-hydraulically controlled
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/43—Programme-control systems fluidic
    • G05B19/46—Programme-control systems fluidic hydraulic

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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
BE661068A 1964-03-13 1965-03-12 BE661068A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1078364A GB1105655A (en) 1964-03-13 1964-03-13 Improvements relating to hydraulic systems

Publications (1)

Publication Number Publication Date
BE661068A true BE661068A (fr) 1965-07-01

Family

ID=9974186

Family Applications (1)

Application Number Title Priority Date Filing Date
BE661068A BE661068A (fr) 1964-03-13 1965-03-12

Country Status (4)

Country Link
BE (1) BE661068A (fr)
DE (1) DE1303518B (fr)
FR (1) FR1426654A (fr)
GB (1) GB1105655A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117905738B (zh) * 2023-07-06 2024-08-23 新疆新研牧神科技有限公司 顺序启动液压系统及收获机

Also Published As

Publication number Publication date
FR1426654A (fr) 1966-01-28
GB1105655A (en) 1968-03-13
DE1303518B (fr) 1972-05-31

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