FR552233A - Switching device for multiple filament incandescent electric lamps - Google Patents

Switching device for multiple filament incandescent electric lamps

Info

Publication number
FR552233A
FR552233A FR552233DA FR552233A FR 552233 A FR552233 A FR 552233A FR 552233D A FR552233D A FR 552233DA FR 552233 A FR552233 A FR 552233A
Authority
FR
France
Prior art keywords
switching device
electric lamps
incandescent electric
multiple filament
filament incandescent
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Jean-Baptiste Poitou
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 filed Critical
Application granted granted Critical
Publication of FR552233A publication Critical patent/FR552233A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
    • H01H51/086—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component
    • H01R33/955—Holders with built-in electrical component with switch operated manually and independent of engagement or disengagement of coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
FR552233D 1921-10-24 1921-10-24 Switching device for multiple filament incandescent electric lamps Expired FR552233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR552233T 1921-10-24

Publications (1)

Publication Number Publication Date
FR552233A true FR552233A (en) 1923-04-26

Family

ID=8937436

Family Applications (1)

Application Number Title Priority Date Filing Date
FR552233D Expired FR552233A (en) 1921-10-24 1921-10-24 Switching device for multiple filament incandescent electric lamps

Country Status (1)

Country Link
FR (1) FR552233A (en)

Similar Documents

Publication Publication Date Title
FR26183E (en) Switching device for multiple filament incandescent electric lamps
FR552233A (en) Switching device for multiple filament incandescent electric lamps
FR645389A (en) Filament improvements for incandescent lamps and similar devices
FR673811A (en) Filament improvements for incandescent lamps
FR596001A (en) Colored bulb for incandescent lamps
FR545781A (en) Incandescent lamp improvements
FR531750A (en) Filament for incandescent lamp
FR620358A (en) Multiple filament incandescent lamp
FR530319A (en) Tungsten filament incandescent devices
FR558090A (en) Multiple filament incandescent electric lamp
FR544381A (en) Dual Filament Incandescent Lamps
FR840688A (en) Base for incandescent electric lamps
FR556193A (en) Adjustable contact mounting device for mult filament electric lamps
FR588184A (en) Filaments of incandescent lamps
FR731324A (en) Reflector for incandescent electric lamps
FR551712A (en) Improvements in the manufacture of filaments for electric incandescent lamps
CA209751A (en) Tipless incandescent lamp
FR547059A (en) Two-filament incandescent lamp
FR613571A (en) Base for multi-filament incandescent electric lamps
FR530314A (en) Safety for incandescent lamps
FR541686A (en) Fixing device for incandescent lamps for projections
FR549756A (en) Socket for incandescent electric lamps
FR543394A (en) Key socket for incandescent lamps
FR721968A (en) Base for two-filament electric lamps
FR546419A (en) Regenerable filament circuit incandescent electric lamp