GB573133A - Improvements in or relating to electro-magnetic relays - Google Patents

Improvements in or relating to electro-magnetic relays

Info

Publication number
GB573133A
GB573133A GB2050743A GB2050743A GB573133A GB 573133 A GB573133 A GB 573133A GB 2050743 A GB2050743 A GB 2050743A GB 2050743 A GB2050743 A GB 2050743A GB 573133 A GB573133 A GB 573133A
Authority
GB
United Kingdom
Prior art keywords
armature
acceleration
centre
gravity
effect
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
GB2050743A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2050743A priority Critical patent/GB573133A/en
Publication of GB573133A publication Critical patent/GB573133A/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
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature

Landscapes

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

Abstract

573,133. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd., TOWNER, S. H., and CHILDS, P. A. Dec. 8, 1943, No. 20507. [Class 38 (v)] A relay having an L-shaped armature 14 pivoted at 16 is adapted to withstand shock and to operate at substantially the same current even though the relay is subject to a high acceleration, by providing the armature with a balance weight 18 which brings the centre of gravity of the armature at or near to the pivot 16. The centre of gravity may be slightly to the right of the point 16 and on a line connecting 16 with the operating stud 17 so that the effect of an acceleration on the armature which tends to rotate the armature is balanced by the effect of the acceleration on the contact springs which acts in the opposite direction. Alternatively, as shown, the centre of gravity is at the point 16 and the effect of acceleration on the contact springs is balanced by an additional spring 19. Specification 566,778 is referred to.
GB2050743A 1943-12-08 1943-12-08 Improvements in or relating to electro-magnetic relays Expired GB573133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2050743A GB573133A (en) 1943-12-08 1943-12-08 Improvements in or relating to electro-magnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2050743A GB573133A (en) 1943-12-08 1943-12-08 Improvements in or relating to electro-magnetic relays

Publications (1)

Publication Number Publication Date
GB573133A true GB573133A (en) 1945-11-07

Family

ID=10147025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2050743A Expired GB573133A (en) 1943-12-08 1943-12-08 Improvements in or relating to electro-magnetic relays

Country Status (1)

Country Link
GB (1) GB573133A (en)

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