BE787952A - Etancon telescopique hydraulique double utilisable notamment dans les mines - Google Patents

Etancon telescopique hydraulique double utilisable notamment dans les mines

Info

Publication number
BE787952A
BE787952A BE787952A BE787952A BE787952A BE 787952 A BE787952 A BE 787952A BE 787952 A BE787952 A BE 787952A BE 787952 A BE787952 A BE 787952A BE 787952 A BE787952 A BE 787952A
Authority
BE
Belgium
Prior art keywords
mines
hydraulic telescopic
double hydraulic
sealer used
sealer
Prior art date
Application number
BE787952A
Other languages
English (en)
Original Assignee
Gewerk Eisenhuette Westfalia
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 by Gewerk Eisenhuette Westfalia filed Critical Gewerk Eisenhuette Westfalia
Publication of BE787952A publication Critical patent/BE787952A/fr

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
    • E21D15/44—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
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
BE787952A 1971-10-15 1972-08-24 Etancon telescopique hydraulique double utilisable notamment dans les mines BE787952A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712151428 DE2151428A1 (de) 1971-10-15 1971-10-15 Hydraulischer doppelteleskopstempel fuer den grubenausbau

Publications (1)

Publication Number Publication Date
BE787952A true BE787952A (fr) 1972-12-18

Family

ID=5822457

Family Applications (1)

Application Number Title Priority Date Filing Date
BE787952A BE787952A (fr) 1971-10-15 1972-08-24 Etancon telescopique hydraulique double utilisable notamment dans les mines

Country Status (3)

Country Link
BE (1) BE787952A (fr)
DE (1) DE2151428A1 (fr)
FR (1) FR2156560B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757885A1 (de) * 1977-12-24 1979-06-28 Thyssen Industrie Schildausbaugestell fuer den grubenausbau
DE19647943C1 (de) * 1996-11-20 1998-06-18 Dbt Gmbh Hydraulischer Doppelteleskopstempel

Also Published As

Publication number Publication date
FR2156560A1 (fr) 1973-06-01
DE2151428A1 (de) 1973-04-19
FR2156560B1 (fr) 1976-08-13

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GEWERKSCHAFT EISENHUTTE WESTFALIA

Effective date: 19890831