GB892844A - Improvements in and relating to polarised electromagnetic relays - Google Patents

Improvements in and relating to polarised electromagnetic relays

Info

Publication number
GB892844A
GB892844A GB2732257A GB2732257A GB892844A GB 892844 A GB892844 A GB 892844A GB 2732257 A GB2732257 A GB 2732257A GB 2732257 A GB2732257 A GB 2732257A GB 892844 A GB892844 A GB 892844A
Authority
GB
United Kingdom
Prior art keywords
armature
polepiece
coil
magnet
electromagnetic relays
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
GB2732257A
Inventor
Lionel Sparke Distin
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 GB2732257A priority Critical patent/GB892844A/en
Publication of GB892844A publication Critical patent/GB892844A/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
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field

Abstract

892,844. Electromagnetic relays. ERICSSON TELEPHONES Ltd. Aug. 29, 1958 [Aug. 30, 1957], No. 27322/57. Class 38 (5). A polarized relay, the armature of which is retained in both the operative and inoperative positions by permanent flux, has a permanent magnet 9 on a magnetic core 1 which passes through the coil 5 and is formed with a polepiece 2. An L-shaped magnetic member 10 engages one pole of the magnet 9 and carries the pivoted armature 11 and the contact spring set 12. A U-shaped magnetic member 7 engages the other end of the magnet and is formed with a polepiece 6. When the coil 5 is not energized the polepieces 2 and 6 are of the same polarity and the armature is retained in engagement with the polepiece to which it was last attracted. Energization of the coil 5 will reverse the polarity of one of the polepieces 2, 6 to move the armature if the energization is the reverse of that of the previous operation.
GB2732257A 1957-08-30 1957-08-30 Improvements in and relating to polarised electromagnetic relays Expired GB892844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2732257A GB892844A (en) 1957-08-30 1957-08-30 Improvements in and relating to polarised electromagnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2732257A GB892844A (en) 1957-08-30 1957-08-30 Improvements in and relating to polarised electromagnetic relays

Publications (1)

Publication Number Publication Date
GB892844A true GB892844A (en) 1962-04-04

Family

ID=10257699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2732257A Expired GB892844A (en) 1957-08-30 1957-08-30 Improvements in and relating to polarised electromagnetic relays

Country Status (1)

Country Link
GB (1) GB892844A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599133A (en) * 1970-03-10 1971-08-10 Amf Inc Latch relay motor structure
US3775715A (en) * 1971-07-07 1973-11-27 Siemens Ag Magnetic system for relays

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599133A (en) * 1970-03-10 1971-08-10 Amf Inc Latch relay motor structure
US3775715A (en) * 1971-07-07 1973-11-27 Siemens Ag Magnetic system for relays

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