US1844402A - Means for operating mercury switches - Google Patents

Means for operating mercury switches Download PDF

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Publication number
US1844402A
US1844402A US198612A US19861227A US1844402A US 1844402 A US1844402 A US 1844402A US 198612 A US198612 A US 198612A US 19861227 A US19861227 A US 19861227A US 1844402 A US1844402 A US 1844402A
Authority
US
United States
Prior art keywords
switch
mercury
mercury switches
operating mercury
density
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 - Lifetime
Application number
US198612A
Other languages
English (en)
Inventor
Leblanc Maurice Auguste Eugene
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Vapor Lamp Co
Original Assignee
General Electric Vapor Lamp Co
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 General Electric Vapor Lamp Co filed Critical General Electric Vapor Lamp Co
Application granted granted Critical
Publication of US1844402A publication Critical patent/US1844402A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container
    • H01H29/24—Switches having at least one liquid contact operated by tilting contact-liquid container wherein contact is made and broken between liquid and liquid

Definitions

  • thermoelectric elements by which is meant an aggregate of two metallic strips soldered together over the whole extent of one surface of each of them, the metals constituting the two strips being selected with coefficients of expansion as different aspossible.
  • mercury switches employed in carrying the invention into practice may be any whatever.
  • Fig. 1 shows an arrangement in which there is a rigid attachment between a iii-metallic strip K and a mercury switch L.
  • the bimetallic strip K which is located vertically when at rest and rigidly fixed at its upper end M, carries at its lower end a horizontal bar 0 to which are attached the grips holding said switch L.
  • the terminals of the latter as well as he free end of the bi-inetallic strip are connected by flexible leads to fixed terminals N. While there has been shown as an example the case of a reversing switch hang from a bimetallic strip heated by its own resistance, it is to he understood that with this arrangement there may be employed any type of mercury switch and that any of the usual means of heating the bi-metallic strip may be employed.
  • the sensitiveness of the device may be increased by compensating for the weight of the mercury switch by immersing it in a liquid having a density approximating its mean density as Sll0, 'n in Fig. 2; this arrangement has the advantage of damping the oscillations caused by external vibrations.

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)
  • Electric Clocks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Thermally Actuated Switches (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
US198612A 1926-06-22 1927-06-13 Means for operating mercury switches Expired - Lifetime US1844402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR620374T 1926-06-22

Publications (1)

Publication Number Publication Date
US1844402A true US1844402A (en) 1932-02-09

Family

ID=8984363

Family Applications (1)

Application Number Title Priority Date Filing Date
US198612A Expired - Lifetime US1844402A (en) 1926-06-22 1927-06-13 Means for operating mercury switches

Country Status (4)

Country Link
US (1) US1844402A (fr)
DE (1) DE481294C (fr)
FR (1) FR620374A (fr)
GB (1) GB273257A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1283414B (de) * 1963-10-19 1968-11-21 Alfred Eckerfeld Elektrischer Stromschalter mit Stromanzeigevorrichtung, insbesondere zur Strombegrenzung von Elektrodenerhitzern

Also Published As

Publication number Publication date
GB273257A (en) 1928-04-19
FR620374A (fr) 1927-04-21
DE481294C (de) 1929-08-17

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