FR1415275A - étançon, ou étai, hydraulique de mine - Google Patents

étançon, ou étai, hydraulique de mine

Info

Publication number
FR1415275A
FR1415275A FR996713A FR996713A FR1415275A FR 1415275 A FR1415275 A FR 1415275A FR 996713 A FR996713 A FR 996713A FR 996713 A FR996713 A FR 996713A FR 1415275 A FR1415275 A FR 1415275A
Authority
FR
France
Prior art keywords
prop
mine hydraulic
mine
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
FR996713A
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.)
Rheinstahl Wanheim GmbH
Original Assignee
Rheinstahl Wanheim 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
Priority claimed from DER36680A external-priority patent/DE1231194B/de
Application filed by Rheinstahl Wanheim GmbH filed Critical Rheinstahl Wanheim GmbH
Priority to FR996713A priority Critical patent/FR1415275A/fr
Priority claimed from DER41253A external-priority patent/DE1237040B/de
Application granted granted Critical
Publication of FR1415275A publication Critical patent/FR1415275A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • 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
    • 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
    • E21D23/0069—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 without essential advancing shifting devices

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)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
FR996713A 1963-11-29 1964-11-28 étançon, ou étai, hydraulique de mine Expired FR1415275A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR996713A FR1415275A (fr) 1963-11-29 1964-11-28 étançon, ou étai, hydraulique de mine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DER36680A DE1231194B (de) 1963-11-29 1963-11-29 Mehrstufiger hydraulischer Grubenstempel
FR996713A FR1415275A (fr) 1963-11-29 1964-11-28 étançon, ou étai, hydraulique de mine
DER41253A DE1237040B (de) 1963-11-29 1965-08-06 Mehrstufiger hydraulischer Grubenstempel

Publications (1)

Publication Number Publication Date
FR1415275A true FR1415275A (fr) 1965-10-22

Family

ID=27212150

Family Applications (1)

Application Number Title Priority Date Filing Date
FR996713A Expired FR1415275A (fr) 1963-11-29 1964-11-28 étançon, ou étai, hydraulique de mine

Country Status (1)

Country Link
FR (1) FR1415275A (fr)

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