AT293981B - Steuerventil - Google Patents

Steuerventil

Info

Publication number
AT293981B
AT293981B AT313770A AT313770A AT293981B AT 293981 B AT293981 B AT 293981B AT 313770 A AT313770 A AT 313770A AT 313770 A AT313770 A AT 313770A AT 293981 B AT293981 B AT 293981B
Authority
AT
Austria
Prior art keywords
control valve
valve
control
Prior art date
Application number
AT313770A
Other languages
English (en)
Original Assignee
Gullick Dobson 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
Priority claimed from GB5310669A external-priority patent/GB1261129A/en
Application filed by Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Application granted granted Critical
Publication of AT293981B publication Critical patent/AT293981B/de

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
    • E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
    • E21D15/155—Built-in cleaning devices
    • 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
    • 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
    • E21D23/26—Hydraulic or pneumatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
AT313770A 1969-05-13 1970-04-06 Steuerventil AT293981B (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1924446 1969-05-13
GB5310669A GB1261129A (en) 1969-10-30 1969-10-30 Improvements in or relating to fluid-flow control means

Publications (1)

Publication Number Publication Date
AT293981B true AT293981B (de) 1971-11-10

Family

ID=25757392

Family Applications (1)

Application Number Title Priority Date Filing Date
AT313770A AT293981B (de) 1969-05-13 1970-04-06 Steuerventil

Country Status (4)

Country Link
AT (1) AT293981B (de)
CA (1) CA932239A (de)
FR (1) FR2047637A5 (de)
YU (1) YU33037B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115526B (en) * 1982-02-24 1986-04-09 Teledyne Ind Multiposition selector valve

Also Published As

Publication number Publication date
YU118070A (en) 1975-08-31
CA932239A (en) 1973-08-21
YU33037B (en) 1976-03-31
FR2047637A5 (de) 1971-03-12

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