CH358818A - Appareil pour tasser le terrain - Google Patents

Appareil pour tasser le terrain

Info

Publication number
CH358818A
CH358818A CH358818DA CH358818A CH 358818 A CH358818 A CH 358818A CH 358818D A CH358818D A CH 358818DA CH 358818 A CH358818 A CH 358818A
Authority
CH
Switzerland
Prior art keywords
tamping
ground
Prior art date
Application number
Other languages
English (en)
Inventor
Giertz-Hedstroem Stig
Original Assignee
Vibro Verken Ab
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 Vibro Verken Ab filed Critical Vibro Verken Ab
Publication of CH358818A publication Critical patent/CH358818A/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H2033/308—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator comprising control and pilot valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
CH358818D 1958-11-12 1959-10-27 Appareil pour tasser le terrain CH358818A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE358818X 1958-11-12

Publications (1)

Publication Number Publication Date
CH358818A true CH358818A (fr) 1961-12-15

Family

ID=20308862

Family Applications (1)

Application Number Title Priority Date Filing Date
CH358818D CH358818A (fr) 1958-11-12 1959-10-27 Appareil pour tasser le terrain

Country Status (3)

Country Link
CH (1) CH358818A (fr)
DE (1) DE1191021B (fr)
FR (1) FR1203632A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2115506A5 (fr) * 1970-11-23 1972-07-07 Gratzmuller Jean Louis
DE2235074B2 (de) * 1972-07-12 1979-05-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Hydraulische Betätigungsvorrichtung für einen elektrischen Schalter
JPS5693227A (en) * 1979-12-27 1981-07-28 Hitachi Ltd Hydraulic driving unit
US4785712A (en) * 1986-05-27 1988-11-22 Mitsubishi Denki Kabushiki Kaisha Hydraulic operating apparatus for electric circuit breaker

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813177A (en) * 1954-03-29 1957-11-12 Kelman Electric And Mfg Compan Circuit breaker

Also Published As

Publication number Publication date
FR1203632A (fr) 1960-01-20
DE1191021B (de) 1965-04-15

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