GB1056248A - Improvements in or relating to magnetically operable electrical switches and relays - Google Patents

Improvements in or relating to magnetically operable electrical switches and relays

Info

Publication number
GB1056248A
GB1056248A GB13998/64A GB1399864A GB1056248A GB 1056248 A GB1056248 A GB 1056248A GB 13998/64 A GB13998/64 A GB 13998/64A GB 1399864 A GB1399864 A GB 1399864A GB 1056248 A GB1056248 A GB 1056248A
Authority
GB
United Kingdom
Prior art keywords
contact unit
relays
relating
april
supply
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
GB13998/64A
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
Brockhurst Igranic 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 Brockhurst Igranic Ltd filed Critical Brockhurst Igranic Ltd
Publication of GB1056248A publication Critical patent/GB1056248A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/12—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for biasing the electromagnet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Relay Circuits (AREA)

Abstract

1,056,248. Electromagnetic relays; switching systems. BROOKHIRST IGRANIC Ltd. April 3, 1964 [April 5, 1963]. No. 13998/64. Headings H2B and H2H. The biasing winding of an electromagnetic reed relay is supplied from a pulsating D.C. supply. Thus the differential between pick-up and drop-out may be altered by adjusting the magnitude of the D.C. supply. In one embodiment the biasing winding is connected through a variable resistance to a rectifier bridge supplied from an A.C. source. In an alternative arrangement the rectifier bridge is replaced by a half-wave rectifier. The relay comprises a biasing coil surrounding a sealed magnetic reed contact unit and an operating coil wound on a separate core. A magnetic shield is provided around the lower half of the contact unit. The two windings may be wound concentrically on the contact unit.
GB13998/64A 1963-04-05 1964-04-03 Improvements in or relating to magnetically operable electrical switches and relays Expired GB1056248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US270854A US3325695A (en) 1963-04-05 1963-04-05 Biased magnetically operated electrical switches

Publications (1)

Publication Number Publication Date
GB1056248A true GB1056248A (en) 1967-01-25

Family

ID=23033081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13998/64A Expired GB1056248A (en) 1963-04-05 1964-04-03 Improvements in or relating to magnetically operable electrical switches and relays

Country Status (2)

Country Link
US (1) US3325695A (en)
GB (1) GB1056248A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526765A1 (en) * 1985-07-26 1987-02-12 Hengstler Bauelemente RELAY FOR SWITCHING ON IN THE SUBSCRIBER CIRCUIT OF A TELEPHONE SWITCHING DEVICE
US20140268453A1 (en) * 2013-03-15 2014-09-18 Varian Semiconductor Equipment Associates, Inc. Superconducting fault current limiter system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510760A (en) * 1966-10-14 1970-05-05 Bell Telephone Labor Inc Method for measuring contact resistance in magnetically operable switches by accounting for flux interactions
US4004198A (en) * 1974-06-24 1977-01-18 Robertshaw Controls Company Primary control system for furnaces and method of making the same
US20070051754A1 (en) * 2005-09-08 2007-03-08 Strand Toralf H Button actuated mechanism for a dispensing canister

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1711663A (en) * 1919-06-14 1929-05-07 Western Electric Co System utilizing radiant-energy sensitive device
US2721297A (en) * 1954-02-09 1955-10-18 Mcnab Inc Conductivity measuring system
US2892133A (en) * 1955-07-19 1959-06-23 Lorain Prod Corp Time-delay relay circuit
US2835734A (en) * 1956-02-14 1958-05-20 Charles B Fisher Telegraph receivers
US3088056A (en) * 1959-12-09 1963-04-30 Western Electric Co Logic and memory circuit units
US3100091A (en) * 1961-03-20 1963-08-06 Lindley & Company Inc Yarn tensioning device
US3170095A (en) * 1961-04-04 1965-02-16 Sperry Rand Corp Relay control circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526765A1 (en) * 1985-07-26 1987-02-12 Hengstler Bauelemente RELAY FOR SWITCHING ON IN THE SUBSCRIBER CIRCUIT OF A TELEPHONE SWITCHING DEVICE
US20140268453A1 (en) * 2013-03-15 2014-09-18 Varian Semiconductor Equipment Associates, Inc. Superconducting fault current limiter system
AU2014237487B2 (en) * 2013-03-15 2017-08-10 Varian Semiconductor Equipment Associates, Inc. Superconducting fault current limiter system
US9912148B2 (en) * 2013-03-15 2018-03-06 Varian Semiconductor Equipment Associates, Inc. Superconducting fault current limiter system

Also Published As

Publication number Publication date
US3325695A (en) 1967-06-13

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