GB790958A - Improvements in or relating to electric switches of the mercury type - Google Patents

Improvements in or relating to electric switches of the mercury type

Info

Publication number
GB790958A
GB790958A GB5012/56A GB501256A GB790958A GB 790958 A GB790958 A GB 790958A GB 5012/56 A GB5012/56 A GB 5012/56A GB 501256 A GB501256 A GB 501256A GB 790958 A GB790958 A GB 790958A
Authority
GB
United Kingdom
Prior art keywords
mercury
armature
electrode
contact
container
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
GB5012/56A
Other languages
English (en)
Inventor
Walter G Gustafson
Henry C Harrison
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB790958A publication Critical patent/GB790958A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/06Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H01H1/08Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved wetted with mercury
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00Switches having at least one liquid contact
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00Electromagnetic relays
    • H01H51/28Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/287Details of the shape of the contact springs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Contacts (AREA)
GB5012/56A 1955-02-18 1956-02-17 Improvements in or relating to electric switches of the mercury type Expired GB790958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US489046A US2837612A (en) 1955-02-18 1955-02-18 Mercury switches

Publications (1)

Publication Number Publication Date
GB790958A true GB790958A (en) 1958-02-19

Family

ID=23942191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5012/56A Expired GB790958A (en) 1955-02-18 1956-02-17 Improvements in or relating to electric switches of the mercury type

Country Status (7)

Country Link
US (1) US2837612A (enrdf_load_stackoverflow)
BE (1) BE545323A (enrdf_load_stackoverflow)
CH (1) CH340278A (enrdf_load_stackoverflow)
DE (1) DE1044975B (enrdf_load_stackoverflow)
FR (1) FR1137591A (enrdf_load_stackoverflow)
GB (1) GB790958A (enrdf_load_stackoverflow)
NL (2) NL102373C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166594A (en) * 1984-11-07 1986-05-08 Stc Plc High sensitivity miniature electro-magnetic relay

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033965A (en) * 1962-05-08 Chatter-free sealed-in contacts
US4804932A (en) * 1986-08-22 1989-02-14 Nec Corporation Mercury wetted contact switch

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE247686C (enrdf_load_stackoverflow) *
US1289637A (en) * 1915-03-29 1918-12-31 William M Bruce Jr Telegraph apparatus.
US1240306A (en) * 1915-10-23 1917-09-18 United Telegraph & Cable Company Telegraphy.
US2242636A (en) * 1936-10-30 1941-05-20 Edison Inc Thomas A Electric switch
DE684355C (de) * 1937-07-08 1939-11-27 Walter Baertsch Elektrischer Schalter mit Quecksilberkontakten
US2257900A (en) * 1937-12-01 1941-10-07 Honeywell Regulator Co Tube switch
NL65085C (enrdf_load_stackoverflow) * 1940-07-11
US2288811A (en) * 1941-05-13 1942-07-07 Bell Telephone Labor Inc Switching device
GB576861A (en) * 1944-05-15 1946-04-24 Electro Methods Ltd Improvements in or relating to electro-magnetic relays
US2445406A (en) * 1944-07-21 1948-07-20 Bell Telephone Labor Inc Circuit maker and breaker
US2483723A (en) * 1945-04-03 1949-10-04 Bell Telephone Labor Inc Electromagnetic circuit maker and breaker
US2524340A (en) * 1945-07-13 1950-10-03 Jessie R Bolin Mercury switch for control compasses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166594A (en) * 1984-11-07 1986-05-08 Stc Plc High sensitivity miniature electro-magnetic relay

Also Published As

Publication number Publication date
US2837612A (en) 1958-06-03
BE545323A (enrdf_load_stackoverflow) 1956-03-15
FR1137591A (fr) 1957-05-31
NL102373C (enrdf_load_stackoverflow) 1962-09-17
NL203405A (enrdf_load_stackoverflow) 1900-01-01
CH340278A (de) 1959-08-15
DE1044975B (de) 1958-11-27

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