BE610401A - Etançon hydraulique - Google Patents

Etançon hydraulique

Info

Publication number
BE610401A
BE610401A BE610401A BE610401A BE610401A BE 610401 A BE610401 A BE 610401A BE 610401 A BE610401 A BE 610401A BE 610401 A BE610401 A BE 610401A BE 610401 A BE610401 A BE 610401A
Authority
BE
Belgium
Prior art keywords
hydraulic prop
prop
hydraulic
Prior art date
Application number
BE610401A
Other languages
English (en)
French (fr)
Original Assignee
Sagem
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 Sagem filed Critical Sagem
Publication of BE610401A publication Critical patent/BE610401A/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
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
BE610401A 1960-11-22 1961-11-16 Etançon hydraulique BE610401A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR844641A FR1280684A (fr) 1960-11-22 1960-11-22 étançon hydraulique

Publications (1)

Publication Number Publication Date
BE610401A true BE610401A (fr) 1962-03-16

Family

ID=8743198

Family Applications (1)

Application Number Title Priority Date Filing Date
BE610401A BE610401A (fr) 1960-11-22 1961-11-16 Etançon hydraulique

Country Status (4)

Country Link
BE (1) BE610401A (de)
DE (1) DE1199218B (de)
FR (1) FR1280684A (de)
GB (1) GB981619A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243610B (de) * 1964-07-09 1967-07-06 Hermann Schwarz Kommanditgesel Druckmittelbetriebener Grubenstempel
GB2069048B (en) * 1980-01-21 1984-06-06 Commercial Shearing Longwall jacks

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1685697A (en) * 1926-07-30 1928-09-25 Nathan M Guinsburg Jack
BE486663A (de) * 1948-01-12
DE809903C (de) * 1948-08-25 1951-08-02 Mavor & Coulson Ltd Hydraulischer Stempel fuer den Grubenbetrieb
DE924142C (de) * 1951-04-08 1955-02-28 Ringfeder Gmbh Grubenstempel
DE919525C (de) * 1951-05-01 1954-10-25 Gullick Ltd Hydraulischer Grubenstempel
GB700790A (en) * 1951-07-19 1953-12-09 Dowty Auto Units Ltd Improvements relating to valves
GB767561A (en) * 1952-07-15 1957-02-06 Gullick Ltd Improvements in or relating to mining chocks and the like
BE526791A (de) * 1953-02-25
DE1062654B (de) * 1956-04-03 1959-08-06 Kloeckner Bergbau Viktor Icker Hydraulischer Grubenstempel
GB891624A (en) * 1958-01-02 1962-03-14 Dowty Mining Equipment Ltd Valves suitable for use as air breather valves in pit props

Also Published As

Publication number Publication date
DE1199218B (de) 1965-08-26
GB981619A (en) 1965-01-27
FR1280684A (fr) 1962-01-08

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