GB577482A - Improvements in or relating to electromagnetic interrupters - Google Patents

Improvements in or relating to electromagnetic interrupters

Info

Publication number
GB577482A
GB577482A GB1854244A GB1854244A GB577482A GB 577482 A GB577482 A GB 577482A GB 1854244 A GB1854244 A GB 1854244A GB 1854244 A GB1854244 A GB 1854244A GB 577482 A GB577482 A GB 577482A
Authority
GB
United Kingdom
Prior art keywords
reeds
contact
armature
reed
attached
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
GB1854244A
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones 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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to GB1854244A priority Critical patent/GB577482A/en
Publication of GB577482A publication Critical patent/GB577482A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
    • H01H50/76—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter using reed or blade spring

Landscapes

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

Abstract

577,482. Electromagnetic interrupters. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. Sept. 28, 1944, No. 18542. [Class 38 (v)] In an electromagnetic interrupter one or more moving contacts 11 are resiliently attached to a vibratory reed 1 and normally positioned by rigid buffer members 14 fixed to the reed. The arrangement shown comprises a pair of reeds 1, one situated behind the other, coupled near their free ends by the armature 4. The magnetic circuit consists of a polepiece 6, a yoke 7 and a member 8. A non-magnetic member 9 is provided for rigidity. Attached to one of the reeds is a contact spring 15 which engages with a contact screw 16. Contact is broken when the armature is attracted by the magnet polepiece, so that vibration of both reeds is maintained in the usual manner. Adjustable weights or nuts 21 attached to posts, which may be threaded, on the top of the reeds enable the frequency to be varied. In a modification each reed carries its own armature and while both reeds still have the same natural frequency, the one which carries the driving contact is stiffer and more heavily loaded than the other. The reeds may in this case be coupled by a light spring. Specification 556,990 is referred to.
GB1854244A 1944-09-28 1944-09-28 Improvements in or relating to electromagnetic interrupters Expired GB577482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1854244A GB577482A (en) 1944-09-28 1944-09-28 Improvements in or relating to electromagnetic interrupters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1854244A GB577482A (en) 1944-09-28 1944-09-28 Improvements in or relating to electromagnetic interrupters

Publications (1)

Publication Number Publication Date
GB577482A true GB577482A (en) 1946-05-20

Family

ID=10114220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1854244A Expired GB577482A (en) 1944-09-28 1944-09-28 Improvements in or relating to electromagnetic interrupters

Country Status (1)

Country Link
GB (1) GB577482A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761075A (en) * 1953-01-19 1956-08-28 Vibration Res Lab Inc Vibration power supply system and vibrator structure useable therein
US2916581A (en) * 1957-03-06 1959-12-08 Mallory & Co Inc P R Low loss vibrator
US5791401A (en) * 1996-05-13 1998-08-11 Nobile; John R. Heat recovery device for showers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761075A (en) * 1953-01-19 1956-08-28 Vibration Res Lab Inc Vibration power supply system and vibrator structure useable therein
US2916581A (en) * 1957-03-06 1959-12-08 Mallory & Co Inc P R Low loss vibrator
US5791401A (en) * 1996-05-13 1998-08-11 Nobile; John R. Heat recovery device for showers

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