GB479095A - Improvements relating to mercury or other conducting-liquid switches - Google Patents

Improvements relating to mercury or other conducting-liquid switches

Info

Publication number
GB479095A
GB479095A GB20946/37A GB2094637A GB479095A GB 479095 A GB479095 A GB 479095A GB 20946/37 A GB20946/37 A GB 20946/37A GB 2094637 A GB2094637 A GB 2094637A GB 479095 A GB479095 A GB 479095A
Authority
GB
United Kingdom
Prior art keywords
mercury
contact
armature
seating
conducting
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
GB20946/37A
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.)
Individual
Original Assignee
Individual
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
Priority to BE412477D priority Critical patent/BE412477A/xx
Priority to GB3399/35A priority patent/GB453229A/en
Priority to FR798323D priority patent/FR798323A/en
Priority to US51962A priority patent/US2157114A/en
Priority claimed from GB184936A external-priority patent/GB472250A/en
Application filed by Individual filed Critical Individual
Priority to US155773A priority patent/US2215543A/en
Publication of GB479095A publication Critical patent/GB479095A/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

Landscapes

  • Magnetically Actuated Valves (AREA)

Abstract

479,095. Mercury switches. CIANCHI, A. July 28, 1936, No. 20946/37. Divided application, and addition to 453,229. [Class 38 (v)] A mercury switch of the type described in the parent Specification comprises an armature 8 which when drawn down by a solenoid 13 displaces mercury so that contact 2 is connected to contacts 1 and 3. If coil 13 is de-energized the armature 8 rises but a ball 9 engages a seating 10 so that the mercury inside the armature is lifted. In this position, contact between 3 and 2 is maintained but contact between 3 and 1 is broken due to the general fall in level of the mercury. The mercury slowly leaks away through a small gap in the seating 10 to break contact between 3 and 2, and restore contact between 3 and 1. Different contact arrangements are described produced by having different relative volumes of the armature and the mercury. Also a conical valve may be used instead of a ball valve.
GB20946/37A 1934-11-27 1936-07-28 Improvements relating to mercury or other conducting-liquid switches Expired GB479095A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE412477D BE412477A (en) 1934-11-27
GB3399/35A GB453229A (en) 1934-11-27 1935-02-01 Improvements relating to electromagnetically-operated mercury switches
FR798323D FR798323A (en) 1934-11-27 1935-11-26 Improvements to electromagnetically controlled mercury switches
US51962A US2157114A (en) 1934-11-27 1935-11-27 Electric switch
US155773A US2215543A (en) 1934-11-27 1937-07-26 Mercury switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2157114X 1934-11-27
GB184936A GB472250A (en) 1936-01-20 1936-01-20 Improvements relating to electro-magnetically operated mercury switches

Publications (1)

Publication Number Publication Date
GB479095A true GB479095A (en) 1938-01-28

Family

ID=32071211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20946/37A Expired GB479095A (en) 1934-11-27 1936-07-28 Improvements relating to mercury or other conducting-liquid switches

Country Status (1)

Country Link
GB (1) GB479095A (en)

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