GB533691A - Improvements in electric circuit interrupters - Google Patents

Improvements in electric circuit interrupters

Info

Publication number
GB533691A
GB533691A GB30111/39A GB3011139A GB533691A GB 533691 A GB533691 A GB 533691A GB 30111/39 A GB30111/39 A GB 30111/39A GB 3011139 A GB3011139 A GB 3011139A GB 533691 A GB533691 A GB 533691A
Authority
GB
United Kingdom
Prior art keywords
mercury
neck
nov
electric circuit
circuit interrupters
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
GB30111/39A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation 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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB533691A publication Critical patent/GB533691A/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
    • H01H29/30—Switches having at least one liquid contact with level of surface of contact liquid displaced by expansion or evaporation thereof

Landscapes

  • Thermally Actuated Switches (AREA)
  • Catching Or Destruction (AREA)

Abstract

533,691. Mercury switches. GENERAL MOTORS CORPORATION. Nov. 15, 1939, No. 30111. Convention date, Nov. 19, 1938. [Class 38 (v)] A device adapted to provide continuous interruption of a low voltage D.C. circuit comprises twc masses of mercury connected with each other through a narrow neck 8 so that when current flows through, the mercury in the neck vaporizes, breaks the circuit and then condenses to restart the cycle. To make the device operate at a smaller voltage, the mercury in the neck may receive additional heat either from an external heating coil, Fig. 2 (not shown), or by causing the current to enter the lower mercury chamber through an insulated conductor 28 of high resistance passing through the neck, Fig. 3.
GB30111/39A 1938-11-19 1939-11-15 Improvements in electric circuit interrupters Expired GB533691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US241383A US2258736A (en) 1938-11-19 1938-11-19 Mercury interrupter

Publications (1)

Publication Number Publication Date
GB533691A true GB533691A (en) 1941-02-18

Family

ID=22910490

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30111/39A Expired GB533691A (en) 1938-11-19 1939-11-15 Improvements in electric circuit interrupters

Country Status (3)

Country Link
US (1) US2258736A (en)
FR (1) FR861907A (en)
GB (1) GB533691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1038640B (en) * 1956-09-29 1958-09-11 Siemens Ag Self-regenerating evaporation protection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677736A (en) * 1952-03-29 1954-05-04 James A Ryles Pulse generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1038640B (en) * 1956-09-29 1958-09-11 Siemens Ag Self-regenerating evaporation protection

Also Published As

Publication number Publication date
US2258736A (en) 1941-10-14
FR861907A (en) 1941-02-21

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