GB333428A - Improvements in or relating to electro magnetic devices embodying electromagnets with moving armatures - Google Patents

Improvements in or relating to electro magnetic devices embodying electromagnets with moving armatures

Info

Publication number
GB333428A
GB333428A GB2902829A GB2902829A GB333428A GB 333428 A GB333428 A GB 333428A GB 2902829 A GB2902829 A GB 2902829A GB 2902829 A GB2902829 A GB 2902829A GB 333428 A GB333428 A GB 333428A
Authority
GB
United Kingdom
Prior art keywords
armature
pivot
electromagnets
stroke
relating
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
GB2902829A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB2902829A priority Critical patent/GB333428A/en
Publication of GB333428A publication Critical patent/GB333428A/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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

333,428. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). Sept. 25, 1929. Electromagnets.-To minimize the magnetizing current and counteract the effects of residual magnetism in electromagnetic devices having a single magnetic circuit wherein the moving element is returned to its normal position by gravity, the fulcrum of the moving element in the first part of the attraction stroke is approximately midway between its ends, and during the remainder of this stroke is at one of its ends. In the form shown, the mounting plate 5 of a signalling device is slotted to accommodate the magnetic element 10, one end of which abuts against a non-magnetic strip 11 which bears a pivot 12 and is attached to the plate 5. The pivot 12 fits in a hole midway along the armature 22, sufficient clearance being provided in the hole to prevent binding when the armature is actuated. As the attraction stroke proceeds, the armature is lifted from the pivot 12 and its unattracted end then forms the pivot at 23, the armature at the end of the attraction stroke occupying the dotted position shown.
GB2902829A 1929-09-25 1929-09-25 Improvements in or relating to electro magnetic devices embodying electromagnets with moving armatures Expired GB333428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2902829A GB333428A (en) 1929-09-25 1929-09-25 Improvements in or relating to electro magnetic devices embodying electromagnets with moving armatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2902829A GB333428A (en) 1929-09-25 1929-09-25 Improvements in or relating to electro magnetic devices embodying electromagnets with moving armatures

Publications (1)

Publication Number Publication Date
GB333428A true GB333428A (en) 1930-08-14

Family

ID=10285076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2902829A Expired GB333428A (en) 1929-09-25 1929-09-25 Improvements in or relating to electro magnetic devices embodying electromagnets with moving armatures

Country Status (1)

Country Link
GB (1) GB333428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125546B (en) * 1954-01-25 1962-03-15 Pierre Eugene Ugon Micro-electromagnet
DE1138162B (en) * 1959-02-12 1962-10-18 Fligue Wladimir Small electromagnetic relay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125546B (en) * 1954-01-25 1962-03-15 Pierre Eugene Ugon Micro-electromagnet
DE1138162B (en) * 1959-02-12 1962-10-18 Fligue Wladimir Small electromagnetic relay

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