GB578134A - Improvements in or relating to electro-magnetic switches - Google Patents

Improvements in or relating to electro-magnetic switches

Info

Publication number
GB578134A
GB578134A GB6851/44A GB685144A GB578134A GB 578134 A GB578134 A GB 578134A GB 6851/44 A GB6851/44 A GB 6851/44A GB 685144 A GB685144 A GB 685144A GB 578134 A GB578134 A GB 578134A
Authority
GB
United Kingdom
Prior art keywords
contacts
april
cores
electro
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
GB6851/44A
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.)
Cutler Hammer Europe Ltd
Original Assignee
Igranic Electric 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 Igranic Electric Co Ltd filed Critical Igranic Electric Co Ltd
Publication of GB578134A publication Critical patent/GB578134A/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)
  • Electronic Switches (AREA)
  • Electromagnets (AREA)

Abstract

578,134. Electromagnetic switches. IGRANIC ELECTRIC CO., Ltd. April 13, 1944, No. 6851. Convention date, April 16, 1943. [Class 38 (v)] In a shock-proof switch, two contact-carrying cores 12, 13 which move towards each other when a coil 11 is energized, are linked so as to move in the above manner by two bell crank levers 21, 22 subject to biassing springs 32 and the cores each carry not only main contacts 46 adapted to bridge fixed contacts 50 but also auxiliary maintaining contacts 69 adapted to enter fixed contact clips 67 which are prevented by an enclosure from spreading more than the necessary amount.
GB6851/44A 1943-04-16 1944-04-13 Improvements in or relating to electro-magnetic switches Expired GB578134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US483252A US2444157A (en) 1943-04-16 1943-04-16 Electromagnetic switch

Publications (1)

Publication Number Publication Date
GB578134A true GB578134A (en) 1946-06-17

Family

ID=23919322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6851/44A Expired GB578134A (en) 1943-04-16 1944-04-13 Improvements in or relating to electro-magnetic switches

Country Status (2)

Country Link
US (1) US2444157A (en)
GB (1) GB578134A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971646C (en) * 1951-12-25 1959-03-19 Brown Electromagnetic contactor, especially for series installation
FR2517464A1 (en) * 1981-11-27 1983-06-03 Bernier Raymond Electromagnetic relay requiring less space for contacts - has two pivoting L=shaped armatures and contact assembly above core

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523369A (en) * 1945-08-23 1950-09-26 Nat Acme Co Shockproof relay
US2595251A (en) * 1948-02-26 1952-05-06 Us Interior Short-circuiting contactor for direct-current circuits
US2546053A (en) * 1948-09-01 1951-03-20 Gen Electric Electromagnet control device
US2853577A (en) * 1954-05-19 1958-09-23 Ward Electric Company Electromagnetic switch
US3057980A (en) * 1959-05-06 1962-10-09 Cutler Hammer Inc Shockproof contactor
US11069500B2 (en) * 2018-11-02 2021-07-20 Leach International Corporation System and method for preventing chatter on contacts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1183159A (en) * 1908-01-11 1916-05-16 Cutler Hammer Mfg Co Electric switch.
US931911A (en) * 1908-05-18 1909-08-24 Arrow Electric Co Contact device for switches.
US910328A (en) * 1908-05-26 1909-01-19 Bryant Electric Mfg Company Knife-switch.
US1155157A (en) * 1911-05-22 1915-09-28 Westinghouse Electric & Mfg Co Reversing-switch.
US1714086A (en) * 1927-09-22 1929-05-21 Trumbull Electric Mfg Co Electric switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971646C (en) * 1951-12-25 1959-03-19 Brown Electromagnetic contactor, especially for series installation
FR2517464A1 (en) * 1981-11-27 1983-06-03 Bernier Raymond Electromagnetic relay requiring less space for contacts - has two pivoting L=shaped armatures and contact assembly above core

Also Published As

Publication number Publication date
US2444157A (en) 1948-06-29

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