[go: up one dir, main page]

NL6509389A - - Google Patents

Info

Publication number
NL6509389A
NL6509389A NL6509389A NL6509389A NL6509389A NL 6509389 A NL6509389 A NL 6509389A NL 6509389 A NL6509389 A NL 6509389A NL 6509389 A NL6509389 A NL 6509389A NL 6509389 A NL6509389 A NL 6509389A
Authority
NL
Netherlands
Application number
NL6509389A
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 NL6509389A publication Critical patent/NL6509389A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting 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
    • 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
    • F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)
NL6509389A 1964-07-28 1965-07-20 NL6509389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK53583A DE1288545B (en) 1964-07-28 1964-07-28 Back cylinder with a piston that can be acted upon by a working medium on both sides

Publications (1)

Publication Number Publication Date
NL6509389A true NL6509389A (en) 1966-01-31

Family

ID=7226775

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6509389A NL6509389A (en) 1964-07-28 1965-07-20

Country Status (4)

Country Link
BE (1) BE667424A (en)
DE (1) DE1288545B (en)
GB (1) GB1078834A (en)
NL (1) NL6509389A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113217502B (en) * 2021-06-01 2022-03-22 中国矿业大学(北京) Piston rod pressure maintaining pushing device of pseudo-triaxial pressure maintaining loading device
CN113680425B (en) * 2021-09-14 2023-01-20 洛阳大华智能科技有限公司 Hydraulic locking type cone crusher and locking method
CN114215821B (en) * 2021-12-30 2024-06-25 徐州徐工液压件有限公司 Landing leg hydraulic cylinder with built-in oil way

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918204C (en) * 1952-04-30 1954-09-20 Fritz Bothe Back device, especially for laying face conveyors
DE1864707U (en) * 1962-01-26 1963-01-03 Glueck Auf Guenther Klerner Ma CHANGEABLE, DOUBLE-ACTING, HYDRAULIC ADVANCING CYLINDER UNIT, IN PARTICULAR FOR EQUIPMENT CONVEYORS IN MINING.

Also Published As

Publication number Publication date
BE667424A (en) 1965-11-16
DE1288545B (en) 1969-02-06
GB1078834A (en) 1967-08-09

Similar Documents

Publication Publication Date Title
AU442366B2 (en)
BE657988A (en)
BE432268A (en)
BE47396A (en)
BE483969A (en)
BE507097A (en)
BE518974A (en)
BE554195A (en)
BE564626A (en)
BE584699A (en)
BE603534A (en)
BE610935A (en)
BE613833A (en)
BE621510A (en)
BE622126A (en)
BE623398A (en)
BE626083A (en)
BE626684A (en)
BE627057A (en)
BE627390A (en)
BE627931A (en)
BE628611A (en)
BE629793A (en)
BE632875A (en)
BE636791A (en)