GB775421A - Improvements in electromagnetic relays - Google Patents

Improvements in electromagnetic relays

Info

Publication number
GB775421A
GB775421A GB30300/55A GB3030055A GB775421A GB 775421 A GB775421 A GB 775421A GB 30300/55 A GB30300/55 A GB 30300/55A GB 3030055 A GB3030055 A GB 3030055A GB 775421 A GB775421 A GB 775421A
Authority
GB
United Kingdom
Prior art keywords
electromagnetic relays
oct
west
differ
class
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
GB30300/55A
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
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 Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Publication of GB775421A publication Critical patent/GB775421A/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
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

775,421. Electromagnetic relays. WEST-' INGHOUSE AIR BRAKE CO. Oct. 24, 1955 [Oct. 25, 1954], No. 30300/55. Drawings to Specification. Class 38(5) The subject-matter is substantially the same as that disclosed in Specification 773,852, but the claims differ.
GB30300/55A 1954-10-25 1955-10-24 Improvements in electromagnetic relays Expired GB775421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US464236A US2833885A (en) 1954-10-25 1954-10-25 Electrical relays

Publications (1)

Publication Number Publication Date
GB775421A true GB775421A (en) 1957-05-22

Family

ID=23843085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30300/55A Expired GB775421A (en) 1954-10-25 1955-10-24 Improvements in electromagnetic relays

Country Status (4)

Country Link
US (1) US2833885A (en)
BE (1) BE540332A (en)
FR (1) FR1136036A (en)
GB (1) GB775421A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL132014C (en) * 1961-10-02
US3493903A (en) * 1968-08-05 1970-02-03 Westinghouse Air Brake Co Electromagnetic relay with a suspended armature
DE2256044B2 (en) * 1972-11-15 1980-09-25 Bunker Ramo Corp., Oak Brook, Ill. (V.St.A.) Changeover contact
US4323945A (en) * 1979-01-25 1982-04-06 Matsushita Electric Works, Ltd. Polarized electromagnetic relay
KR900002009B1 (en) * 1984-08-31 1990-03-31 야마타께 하네우에루 가부시끼가이샤 Leaf-switch
DE3540460A1 (en) * 1985-11-14 1987-05-21 Siemens Ag ELECTROMAGNETIC SWITCHGEAR
US7973625B2 (en) * 2008-06-05 2011-07-05 General Electric Company Tool free contact block
JP6135168B2 (en) 2013-02-13 2017-05-31 オムロン株式会社 Electromagnetic relay
KR101529589B1 (en) * 2013-12-19 2015-06-17 엘에스산전 주식회사 Magnetic contactor
JP6575343B2 (en) * 2015-12-11 2019-09-18 オムロン株式会社 relay
JP2022141410A (en) * 2021-03-15 2022-09-29 オムロン株式会社 electromagnetic relay

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US329399A (en) * 1885-10-27 William a
BE332737A (en) * 1925-03-19
US2273545A (en) * 1937-09-22 1942-02-17 Square D Co Electric switch
US2258122A (en) * 1939-01-28 1941-10-07 Gen Railway Signal Co Relay
US2335110A (en) * 1941-06-11 1943-11-23 Charles W Dann Electrical switch
US2347834A (en) * 1942-11-11 1944-05-02 Union Switch & Signal Co Electrical switch
US2490280A (en) * 1944-03-29 1949-12-06 Gen Railway Signal Co Electromagnetically operated pretensioned contact spring
US2638514A (en) * 1948-09-25 1953-05-12 Westinghouse Air Brake Co Electric circuit controller
US2619569A (en) * 1950-07-12 1952-11-25 Westinghouse Electric Corp Electrical contact mounting

Also Published As

Publication number Publication date
FR1136036A (en) 1957-05-07
BE540332A (en)
US2833885A (en) 1958-05-06

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