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GB378738A - Improvements in or relating to mercury switches - Google Patents

Improvements in or relating to mercury switches

Info

Publication number
GB378738A
GB378738A GB33935/31A GB3393531A GB378738A GB 378738 A GB378738 A GB 378738A GB 33935/31 A GB33935/31 A GB 33935/31A GB 3393531 A GB3393531 A GB 3393531A GB 378738 A GB378738 A GB 378738A
Authority
GB
United Kingdom
Prior art keywords
mercury
relating
dec
switches
mercury switches
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
GB33935/31A
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.)
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
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 Allgemeine Elektricitaets Gesellschaft, AEG AG filed Critical Allgemeine Elektricitaets Gesellschaft
Publication of GB378738A publication Critical patent/GB378738A/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
    • H01H29/18—Switches having at least one liquid contact with level of surface of contact liquid displaced by non-electrical contact-making plunger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Manufacture Of Switches (AREA)
  • Contacts (AREA)

Abstract

378,738. Mercury switches; electromagnetic switches. ALLGEMEINE ELEKTRICIT€TS GES., 2, Friedrich Karl- Ufer, Berlin. Dec. 7, 1931, No. 33935. Convention date, Dec. 6, 1930. [Class 38 (v).] Upon energization of an electromagnet M, a core S, arranged in a sealed container and normally floating on mercury Q, is drawn down causing the mercury level to rise and bridge the electrodes El, E2. The container may hold a neutral gas and the contact E<2> or its lower end may be of tungsten.
GB33935/31A 1930-12-06 1931-12-07 Improvements in or relating to mercury switches Expired GB378738A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE378738X 1930-12-06
DEA61025D DE606734C (en) 1930-12-06 1931-03-06 Mercury interrupter

Publications (1)

Publication Number Publication Date
GB378738A true GB378738A (en) 1932-08-18

Family

ID=25863726

Family Applications (2)

Application Number Title Priority Date Filing Date
GB33935/31A Expired GB378738A (en) 1930-12-06 1931-12-07 Improvements in or relating to mercury switches
GB3399/32A Expired GB382826A (en) 1930-12-06 1932-02-04 Improvements in or relating to mercury switches

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3399/32A Expired GB382826A (en) 1930-12-06 1932-02-04 Improvements in or relating to mercury switches

Country Status (5)

Country Link
US (1) US1984478A (en)
DE (1) DE606734C (en)
FR (1) FR727880A (en)
GB (2) GB378738A (en)
NL (1) NL34211C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417763A (en) * 1941-11-24 1947-03-18 Adlake Co Mercury switch relay
DE965877C (en) * 1955-01-27 1957-06-27 Thermometerwerk Geraberg Verwa Immersion armature for vertically operating mercury switching relays
US3240900A (en) * 1961-12-21 1966-03-15 Albert H Halff Electric relay

Also Published As

Publication number Publication date
DE606734C (en) 1934-12-12
GB382826A (en) 1932-11-03
NL34211C (en)
US1984478A (en) 1934-12-18
FR727880A (en) 1932-06-25

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