GB760271A - Improvements in electric switches adapted for periodic interruption - Google Patents

Improvements in electric switches adapted for periodic interruption

Info

Publication number
GB760271A
GB760271A GB1252754A GB1252754A GB760271A GB 760271 A GB760271 A GB 760271A GB 1252754 A GB1252754 A GB 1252754A GB 1252754 A GB1252754 A GB 1252754A GB 760271 A GB760271 A GB 760271A
Authority
GB
United Kingdom
Prior art keywords
rack
pivot
acting
electric switches
periodic interruption
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
GB1252754A
Inventor
John Paton Lauder
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.)
JAMES HODGKINSON SALFORD Ltd
Original Assignee
JAMES HODGKINSON SALFORD 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 JAMES HODGKINSON SALFORD Ltd filed Critical JAMES HODGKINSON SALFORD Ltd
Priority to GB1252754A priority Critical patent/GB760271A/en
Publication of GB760271A publication Critical patent/GB760271A/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
    • H01H29/006—Self interrupters, e.g. with periodic or other repetitive opening and closing of contacts

Landscapes

  • Switches With Compound Operations (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

760,271. Interrupters. HODGKINSON (SALFORD), Ltd., J. May 2, 1955 [April 30, 1954], No. 12527/54. Class 38(5) In a make and break switch adapted for continuous interruption, a mercury' tube A is mounted on an arm B which is pivoted at c and oscillated by a rotating cam E acting on its free end b to open and close a circuit, the pivot c being slidably movable so that the ratio of the time open to the time closed per cycle may be varied. The pivot c is mounted on a slider or rack C moved by pinion D on a shaft d which also carried a pointer C' co-acting with a scale c<SP>2</SP> so that the position of the rack, and hence the duration of the "switch closed " portion of the cycle, may be set.
GB1252754A 1954-04-30 1954-04-30 Improvements in electric switches adapted for periodic interruption Expired GB760271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1252754A GB760271A (en) 1954-04-30 1954-04-30 Improvements in electric switches adapted for periodic interruption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1252754A GB760271A (en) 1954-04-30 1954-04-30 Improvements in electric switches adapted for periodic interruption

Publications (1)

Publication Number Publication Date
GB760271A true GB760271A (en) 1956-10-31

Family

ID=10006249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252754A Expired GB760271A (en) 1954-04-30 1954-04-30 Improvements in electric switches adapted for periodic interruption

Country Status (1)

Country Link
GB (1) GB760271A (en)

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