BE401277A - - Google Patents

Info

Publication number
BE401277A
BE401277A BE401277DA BE401277A BE 401277 A BE401277 A BE 401277A BE 401277D A BE401277D A BE 401277DA BE 401277 A BE401277 A BE 401277A
Authority
BE
Belgium
Application number
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.)
Publication of BE401277A publication Critical patent/BE401277A/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
    • E21F9/00—Devices preventing sparking of machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/007—Jig saws, i.e. machine saws with a vertically reciprocating narrow saw blade chucked at both ends for contour cutting
    • B23D49/008—Jig saws, i.e. machine saws with a vertically reciprocating narrow saw blade chucked at both ends for contour cutting hand-driven or foot-driven
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/92—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being liquid, e.g. oil

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
BE401277D 1931-11-18 BE401277A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1992109X 1931-11-18

Publications (1)

Publication Number Publication Date
BE401277A true BE401277A (ja)

Family

ID=10895493

Family Applications (2)

Application Number Title Priority Date Filing Date
BE401277D BE401277A (ja) 1931-11-18
BE391064D BE391064A (ja) 1931-11-18

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE391064D BE391064A (ja) 1931-11-18

Country Status (5)

Country Link
US (1) US1992109A (ja)
BE (2) BE391064A (ja)
DE (2) DE621297C (ja)
FR (2) FR768027A (ja)
GB (3) GB392930A (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422569A (en) * 1943-05-28 1947-06-17 Westinghouse Electric Corp Circuit interrupter
US2467788A (en) * 1944-07-20 1949-04-19 Westinghouse Electric Corp Circuit interrupter
DE1142650B (de) * 1957-06-03 1963-01-24 Elettromeccaniche Scarpa & Mag Tulpenkontakt, insbesondere fuer Loeschkammerschalter
US3894204A (en) * 1974-02-19 1975-07-08 Ite Imperial Corp 38KV low current fused switch
DE102013205945A1 (de) * 2013-04-04 2014-10-09 Siemens Aktiengesellschaft Trennschalteinrichtung
EP3776616B1 (en) * 2018-03-28 2023-02-15 Hitachi Energy Switzerland AG Spring loaded auxiliary contact system for bus transfer switching in a center break switch

Also Published As

Publication number Publication date
GB392930A (en) 1933-05-18
BE391064A (ja)
GB392926A (en) 1933-05-18
FR743261A (ja) 1933-03-25
DE658260C (de) 1938-03-25
GB412673A (en) 1934-07-05
DE621297C (de) 1935-11-05
FR768027A (fr) 1934-07-30
US1992109A (en) 1935-02-19

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