GB350031A - Improvements relating to electric relays - Google Patents

Improvements relating to electric relays

Info

Publication number
GB350031A
GB350031A GB460630A GB460630A GB350031A GB 350031 A GB350031 A GB 350031A GB 460630 A GB460630 A GB 460630A GB 460630 A GB460630 A GB 460630A GB 350031 A GB350031 A GB 350031A
Authority
GB
United Kingdom
Prior art keywords
armature
mercury
contact
yoke
surrounded
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
GB460630A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB460630A priority Critical patent/GB350031A/en
Publication of GB350031A publication Critical patent/GB350031A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/16—Switches having at least one liquid contact operated by dipping soil contact into stationary contact liquid

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

350,031. Electromagnetic relays. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and PARRY, R. D., Pen Bryn, Northway, Neasden, Middlesex. Feb. 11, 1930, No. 4606. [Class 38 (v).] Electromagnetic switches; mercury switches.-An electric relay has an operating coil 4 with a magnetic core 2 and yoke-piece 1, a chamber 6 containing mercury 7 being mounted between the end of the core and the yoke and an armature being mounted within the mercury chamber. The lower portion of the armature is surrounded by insulating material 10 so that normally there is no contact between it and the mercury a projection G of the armature being surrounded by an adjustable spring 11 to maintain it out of contact. On energization of the electromagnet the armature is drawn down towards the polepiece which is tapered at its tip to concentrate the magnetic field adjacent to the armature. The displacement of the mercury caused by the downward movement of the armature causes it to rise above the insulating portion 10 and to contact with a conducting ring 8, so completing the controlled circuit. By adjustment of the tension of the spring 11, the value of the current at which this takes place may be varied.
GB460630A 1930-02-11 1930-02-11 Improvements relating to electric relays Expired GB350031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB460630A GB350031A (en) 1930-02-11 1930-02-11 Improvements relating to electric relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB460630A GB350031A (en) 1930-02-11 1930-02-11 Improvements relating to electric relays

Publications (1)

Publication Number Publication Date
GB350031A true GB350031A (en) 1931-06-11

Family

ID=9780333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB460630A Expired GB350031A (en) 1930-02-11 1930-02-11 Improvements relating to electric relays

Country Status (1)

Country Link
GB (1) GB350031A (en)

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