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GB482918A - Improvements in electrical contacts for relays - Google Patents

Improvements in electrical contacts for relays

Info

Publication number
GB482918A
GB482918A GB3707/37A GB370737A GB482918A GB 482918 A GB482918 A GB 482918A GB 3707/37 A GB3707/37 A GB 3707/37A GB 370737 A GB370737 A GB 370737A GB 482918 A GB482918 A GB 482918A
Authority
GB
United Kingdom
Prior art keywords
contacts
engagement
relays
electrical contacts
contact
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
GB3707/37A
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.)
Weston Electric Instrument Corp
Original Assignee
Weston Electric Instrument Corp
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 Weston Electric Instrument Corp filed Critical Weston Electric Instrument Corp
Publication of GB482918A publication Critical patent/GB482918A/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
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H01H50/42—Auxiliary magnetic circuits, e.g. for maintaining armature in, or returning armature to, position of rest, for damping or accelerating movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H01H2001/545—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force having permanent magnets directly associated with the contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

482,918. Electromagnetic relays. WESTON ELECTRICAL INSTRUMENT CORPORATION. Feb. 8, 1937, No. 3707. Convention date, Dec. 17, 1936. [Class 38 (v)] The pointer 4 of an instrument-type relay carries a contact 7 of magnetic material adapted to bridge contacts 8, 9 constituting opposite poles of permanent magnets. The contacts 8, 9 may be engaged simultaneously in succession, in which case one of them may constitute an arcing contact. The contacts 8, 9 are carried by a bar 10 which may be of iron so that a substantially-closed magnetic circuit is produced when the contacts are in engagement. The contacts 8, 9 may be connected either in series or parallel in a load circuit and a pusher 16 may be provided for separating the contacts after engagement. Specifications 430,864 and 444,777 are referred to.
GB3707/37A 1936-12-17 1937-02-08 Improvements in electrical contacts for relays Expired GB482918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US116407A US2193731A (en) 1936-12-17 1936-12-17 Relay contact

Publications (1)

Publication Number Publication Date
GB482918A true GB482918A (en) 1938-04-07

Family

ID=22367008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3707/37A Expired GB482918A (en) 1936-12-17 1937-02-08 Improvements in electrical contacts for relays

Country Status (2)

Country Link
US (1) US2193731A (en)
GB (1) GB482918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172375B (en) * 1958-11-10 1964-06-18 Daystrom Inc Moving coil relay with a structural body consisting of an essentially rectangular soft iron frame

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541398A (en) * 1945-10-29 1951-02-13 Automatic Elect Lab Electromagnetic relay contact
US2502159A (en) * 1948-04-15 1950-03-28 Weston Electrical Instr Corp Contact making thermometer
DE1188224B (en) * 1954-09-22 1965-03-04 Deutsche Bundespost Contact arrangement for switching contacts in weak current circuits with magnetically generated holding force for the contacts
US2834847A (en) * 1955-05-13 1958-05-13 Jennings Radio Mfg Corp Vacuum relay
US2971068A (en) * 1958-09-17 1961-02-07 Wegner Claude Magnetic switch
DE1160562B (en) * 1960-01-20 1964-01-02 Thilo H Matthes Magnetically operated contact, especially for contact measuring devices, with several permanent magnets for contact operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172375B (en) * 1958-11-10 1964-06-18 Daystrom Inc Moving coil relay with a structural body consisting of an essentially rectangular soft iron frame

Also Published As

Publication number Publication date
US2193731A (en) 1940-03-12

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