GB1502553A - Electric switch - Google Patents

Electric switch

Info

Publication number
GB1502553A
GB1502553A GB1648376A GB1648376A GB1502553A GB 1502553 A GB1502553 A GB 1502553A GB 1648376 A GB1648376 A GB 1648376A GB 1648376 A GB1648376 A GB 1648376A GB 1502553 A GB1502553 A GB 1502553A
Authority
GB
United Kingdom
Prior art keywords
liquid
compartment
conducting
gas
resistor
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
GB1648376A
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.)
DENISSELLE J
EFTHER J
Original Assignee
DENISSELLE J
EFTHER J
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
Priority claimed from FR7514772A external-priority patent/FR2311397A1/en
Priority claimed from FR7604439A external-priority patent/FR2356255A2/en
Application filed by DENISSELLE J, EFTHER J filed Critical DENISSELLE J
Publication of GB1502553A publication Critical patent/GB1502553A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/28—Switches having at least one liquid contact with level of surface of contact liquid displaced by fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Adjustable Resistors (AREA)
  • Manufacture Of Switches (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

1502553 Conducting-liquid switches J EFTHER and J DENISSELLE 23 April 1976 [13 May 1975 18 Feb 1976] 16483/76 Heading H1N A conducting-liquid switch comprises an elongate insulating container 1 divided into three compartments, of which one compartment, A, contains gas and an electrical resistor 4, another compartment, C, contains two electrodes 6 and 7 to be bridged by the conducting liquid when displaced consequent upon expansion of the gas in A when resistor 4 is energized, and an intermediate third compartment, B, acts as reservoir for the conducting liquid, compartment C communicating with compartment B by a channel 3a at the lowest part of C and the reservoir B communicating with A by a channel 2a arranged in its upper part so as to permit passage of gas but containing means such as a wick 9 to resist passage of the liquid conductor. As shown the container 1 is of glass, the liquid is mercury, and the resistor is a fine wire 4 supported in a zigzag fashion to embrace maximum gas. Compartments A and C are of equal volume which is four times the volume of B.
GB1648376A 1975-05-13 1976-04-23 Electric switch Expired GB1502553A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7514772A FR2311397A1 (en) 1975-05-13 1975-05-13 Switch with insulating main case or stationary ampoule - has conducting liquid making contact with two electrodes
FR7604439A FR2356255A2 (en) 1976-02-18 1976-02-18 Switch with insulating main case or stationary ampoule - has conducting liquid making contact with two electrodes

Publications (1)

Publication Number Publication Date
GB1502553A true GB1502553A (en) 1978-03-01

Family

ID=26218866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1648376A Expired GB1502553A (en) 1975-05-13 1976-04-23 Electric switch

Country Status (4)

Country Link
DE (2) DE7615026U1 (en)
GB (1) GB1502553A (en)
IT (1) IT1063004B (en)
SE (1) SE7605145L (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1674489A (en) * 1924-11-28 1928-06-19 Gen Electric Automatic switch
DE637077C (en) * 1934-08-15 1936-10-22 Siemens Schuckertwerke Akt Ges Time switch, especially for stairwell lighting
DE862196C (en) * 1951-02-28 1953-01-08 Hansgert Meyer Thermal mercury switching relay
US3474203A (en) * 1966-10-07 1969-10-21 Elco Corp Retriggerable mercury switch

Also Published As

Publication number Publication date
IT1063004B (en) 1985-02-11
DE7615026U1 (en) 1976-12-16
DE2620989A1 (en) 1976-12-02
DE2620989C2 (en) 1983-08-11
SE7605145L (en) 1976-11-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee