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GB765109A - Improvements in electrical tilting mercury switch assemblies - Google Patents

Improvements in electrical tilting mercury switch assemblies

Info

Publication number
GB765109A
GB765109A GB1470354A GB1470354A GB765109A GB 765109 A GB765109 A GB 765109A GB 1470354 A GB1470354 A GB 1470354A GB 1470354 A GB1470354 A GB 1470354A GB 765109 A GB765109 A GB 765109A
Authority
GB
United Kingdom
Prior art keywords
spindle
switches
operated
mercury switch
switch assemblies
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
GB1470354A
Inventor
Derek William John Furnell
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.)
A L Hawkins & Co Ltd
Original Assignee
A L Hawkins & 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 A L Hawkins & Co Ltd filed Critical A L Hawkins & Co Ltd
Priority to GB1470354A priority Critical patent/GB765109A/en
Publication of GB765109A publication Critical patent/GB765109A/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
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)

Abstract

765.109. Regulating switches; camoperated switches. HAWKINS & CO., Ltd., A. L. May 6, 1955 [May 19, 1954], No. 14703/54. Class 38(5) A number of mercury switches are mounted on cradles 3 each loosely carried by a spindle 2 and each of which has an operating cam 10 on a common spindle 9. The latter has a squared portion 12 cooperating with a notch in a spring-pressed lever 11 to locate spindle 9 in its various positions. Springs 8 bias the cradles against the cams. The switches are in tended for connection one in each phase of, e.g. a three-phase supply so as to control a number of heating circuits. The cams 10 are so arranged that (a) in one position of the spindle one switch is operated, (b) in the next position that switch and another are operated, and (c) all three are operated.
GB1470354A 1954-05-19 1954-05-19 Improvements in electrical tilting mercury switch assemblies Expired GB765109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1470354A GB765109A (en) 1954-05-19 1954-05-19 Improvements in electrical tilting mercury switch assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1470354A GB765109A (en) 1954-05-19 1954-05-19 Improvements in electrical tilting mercury switch assemblies

Publications (1)

Publication Number Publication Date
GB765109A true GB765109A (en) 1957-01-02

Family

ID=10046045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1470354A Expired GB765109A (en) 1954-05-19 1954-05-19 Improvements in electrical tilting mercury switch assemblies

Country Status (1)

Country Link
GB (1) GB765109A (en)

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