GB533896A - Improvements in mercury circuit interrupters - Google Patents

Improvements in mercury circuit interrupters

Info

Publication number
GB533896A
GB533896A GB32119/39A GB3211939A GB533896A GB 533896 A GB533896 A GB 533896A GB 32119/39 A GB32119/39 A GB 32119/39A GB 3211939 A GB3211939 A GB 3211939A GB 533896 A GB533896 A GB 533896A
Authority
GB
United Kingdom
Prior art keywords
mercury
dec
circuit interrupters
electrode
carbon
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
GB32119/39A
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
Priority to GB3211939D priority Critical patent/GB533898A/en
Publication of GB533896A publication Critical patent/GB533896A/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

  • Manufacture Of Switches (AREA)

Abstract

533,896. Mercury switches. GENERAL MOTORS CORPORATION. Dec. 13, 1939, No. 32115. Convention date, Dec. 15, 1938. [Class 38 (v)] A mercury interrupter such as that described in Specification 533,690 is manufactured by first completely encasing the carbon electrode 2 with glass or other insulating material 8 and then grinding off the lower surface or tip so as to expose a small area of the carbon. The second electrode 12 is then mounted alongside within the insulating case 16 and this is then evacuated, filled up to a given level with mercury and sealed off at 22.
GB32119/39A 1938-12-15 1939-12-13 Improvements in mercury circuit interrupters Expired GB533896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3211939D GB533898A (en) 1939-12-13 1939-12-13 Improvements in and relating to cartons or containers and to methods of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US245867A US2225970A (en) 1938-12-15 1938-12-15 Circuit interrupter

Publications (1)

Publication Number Publication Date
GB533896A true GB533896A (en) 1941-02-21

Family

ID=22928416

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32119/39A Expired GB533896A (en) 1938-12-15 1939-12-13 Improvements in mercury circuit interrupters

Country Status (2)

Country Link
US (1) US2225970A (en)
GB (1) GB533896A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790923A (en) * 1953-03-17 1957-04-30 Sylvania Electric Prod Gaseous electric discharge tubes and electrodes

Also Published As

Publication number Publication date
US2225970A (en) 1940-12-24

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