GB897522A - Improvements in or relating to electromagnetic relays - Google Patents

Improvements in or relating to electromagnetic relays

Info

Publication number
GB897522A
GB897522A GB389258A GB389258A GB897522A GB 897522 A GB897522 A GB 897522A GB 389258 A GB389258 A GB 389258A GB 389258 A GB389258 A GB 389258A GB 897522 A GB897522 A GB 897522A
Authority
GB
United Kingdom
Prior art keywords
armature
core
release
relay
armatures
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
GB389258A
Inventor
John Lynn Golding
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.)
Telephone Manufacturing Co Ltd
Original Assignee
Telephone Manufacturing 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 Telephone Manufacturing Co Ltd filed Critical Telephone Manufacturing Co Ltd
Priority to GB389258A priority Critical patent/GB897522A/en
Publication of GB897522A publication Critical patent/GB897522A/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
    • H01H51/02—Non-polarised relays
    • H01H51/20—Non-polarised relays with two or more independent armatures
    • 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

897,522. Electrically-released switches; electromagrietic relays.. TELEPHONE MANUFACTURING CO. Ltd. Feb. 4, 1959 [Feb. 6, 1958], No. 3892/58. Class 38 (5). A relay has a single core and two armatures, one of which is retained by remanent magnetism. Each armature 1a, 1b operates a contact stack 4, 5 by means of an actuator 10a, 10b and is pivoted on the end of the yoke 3 and retained by a bridge 7 and screw 8. The armature 1b is provided with a screw 9 to set the minimum gap between it and the core end 2 ensuring that it is released on de-energization, whilst the armature 1a has no such gap so that it may be retained in engagement with the core. The core, core end or armature 1a may be the member having the remanent magnetic properties. A reverse flux in the relay causes the release of the armature 1a before both armatures are re-attracted. The relay may have a single winding which has to be energized in the reverse direction to release armature 1 or it may have two windings with a resistance to limit the current in the release winding to a value insufficient to cause the re-attraction of the armatures. In either case the contacts of the stack 4 may be connected in the energizing circuit to set the relay for release. Specification 897,523 is referred to.
GB389258A 1958-02-06 1958-02-06 Improvements in or relating to electromagnetic relays Expired GB897522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB389258A GB897522A (en) 1958-02-06 1958-02-06 Improvements in or relating to electromagnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB389258A GB897522A (en) 1958-02-06 1958-02-06 Improvements in or relating to electromagnetic relays

Publications (1)

Publication Number Publication Date
GB897522A true GB897522A (en) 1962-05-30

Family

ID=9766840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB389258A Expired GB897522A (en) 1958-02-06 1958-02-06 Improvements in or relating to electromagnetic relays

Country Status (1)

Country Link
GB (1) GB897522A (en)

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