HU179571B - Corrosion-proof cylindrical steel piece particularly cyllindrical steel member of hydraulic prop - Google Patents

Corrosion-proof cylindrical steel piece particularly cyllindrical steel member of hydraulic prop

Info

Publication number
HU179571B
HU179571B HURE000624A HU179571B HU 179571 B HU179571 B HU 179571B HU RE000624 A HURE000624 A HU RE000624A HU 179571 B HU179571 B HU 179571B
Authority
HU
Hungary
Prior art keywords
cyllindrical
corrosion
hydraulic prop
proof cylindrical
piece particularly
Prior art date
Application number
Other languages
Hungarian (hu)
Inventor
Ulrich Reiningaus
Herbert Friebe
Original Assignee
Reininghaus Ulrich
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 DE19772708929 external-priority patent/DE2708929B2/en
Priority claimed from DE19772728226 external-priority patent/DE2728226A1/en
Application filed by Reininghaus Ulrich filed Critical Reininghaus Ulrich
Publication of HU179571B publication Critical patent/HU179571B/en

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
    • 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
    • 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
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Sealing Devices (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
HURE000624 1977-03-02 1978-03-01 Corrosion-proof cylindrical steel piece particularly cyllindrical steel member of hydraulic prop HU179571B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772708929 DE2708929B2 (en) 1977-03-02 1977-03-02 Telescopic ram for underground shield support
DE19772728226 DE2728226A1 (en) 1977-06-23 1977-06-23 Prop or support e.g. telescopic jack in crawler for mine-shaft - has cylinders lined with an anticorrosive metal

Publications (1)

Publication Number Publication Date
HU179571B true HU179571B (en) 1982-11-29

Family

ID=25771678

Family Applications (1)

Application Number Title Priority Date Filing Date
HURE000624 HU179571B (en) 1977-03-02 1978-03-01 Corrosion-proof cylindrical steel piece particularly cyllindrical steel member of hydraulic prop

Country Status (5)

Country Link
JP (1) JPS53107547A (en)
FR (1) FR2382600A1 (en)
GB (1) GB1592090A (en)
HU (1) HU179571B (en)
PL (1) PL117774B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522082B1 (en) * 1982-02-20 1988-02-12 Festo Maschf Stoll G PNEUMATIC OR HYDRAULIC CYLINDER
CN108994606A (en) * 2018-07-27 2018-12-14 田洪志 A kind of hydraulic prop flexible automation assembly control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640104C3 (en) * 1976-09-07 1979-03-08 Herbert 5000 Koeln Friebe Pit stamp

Also Published As

Publication number Publication date
JPS53107547A (en) 1978-09-19
PL204999A1 (en) 1978-11-06
GB1592090A (en) 1981-07-01
FR2382600B1 (en) 1984-03-30
PL117774B1 (en) 1981-08-31
FR2382600A1 (en) 1978-09-29

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