GB608981A - Improvements relating to vibrators for changing the frequency and/or voltage of electric current - Google Patents

Improvements relating to vibrators for changing the frequency and/or voltage of electric current

Info

Publication number
GB608981A
GB608981A GB661446A GB661446A GB608981A GB 608981 A GB608981 A GB 608981A GB 661446 A GB661446 A GB 661446A GB 661446 A GB661446 A GB 661446A GB 608981 A GB608981 A GB 608981A
Authority
GB
United Kingdom
Prior art keywords
vibrator
vibrators
changing
voltage
frequency
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
GB661446A
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.)
ERIC ST JOHN CHESNEY
Original Assignee
ERIC ST JOHN CHESNEY
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 ERIC ST JOHN CHESNEY filed Critical ERIC ST JOHN CHESNEY
Priority to GB661446A priority Critical patent/GB608981A/en
Publication of GB608981A publication Critical patent/GB608981A/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
    • H01H51/34—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Special Spraying Apparatus (AREA)

Abstract

608,981. Electromagnetic interrupters; switch cases. CHESNEY, E. ST. J. March 4, 1946, No. 6614. [Class 38 (v)] A vibrator is enclosed in an exhausted glass vessel a and is resiliently supported by spring connecting leads d which are sealed where they pass through the vessel. The vessel is sprayed with metal which serves as a screen and prevents radiation from the vibrator. The driver coil e is enclosed hermetically in a plastic cover f and the vibrator is degassed by inductive heating.
GB661446A 1946-03-04 1946-03-04 Improvements relating to vibrators for changing the frequency and/or voltage of electric current Expired GB608981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB661446A GB608981A (en) 1946-03-04 1946-03-04 Improvements relating to vibrators for changing the frequency and/or voltage of electric current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB661446A GB608981A (en) 1946-03-04 1946-03-04 Improvements relating to vibrators for changing the frequency and/or voltage of electric current

Publications (1)

Publication Number Publication Date
GB608981A true GB608981A (en) 1948-09-23

Family

ID=9817662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB661446A Expired GB608981A (en) 1946-03-04 1946-03-04 Improvements relating to vibrators for changing the frequency and/or voltage of electric current

Country Status (1)

Country Link
GB (1) GB608981A (en)

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