GB700627A - Electromagnetic relays - Google Patents

Electromagnetic relays

Info

Publication number
GB700627A
GB700627A GB3164750A GB3164750A GB700627A GB 700627 A GB700627 A GB 700627A GB 3164750 A GB3164750 A GB 3164750A GB 3164750 A GB3164750 A GB 3164750A GB 700627 A GB700627 A GB 700627A
Authority
GB
United Kingdom
Prior art keywords
spring
screw
armature
dec
relay
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
GB3164750A
Inventor
Richard Ernest Hall
Norman Leslie Haynes Jeffers
Douglas Peter Davidson
Peter Robert Hutton
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB3164750A priority Critical patent/GB700627A/en
Publication of GB700627A publication Critical patent/GB700627A/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
    • H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

700,627. Electromagnetic relays. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 12, 1951 [Dec. 29, 1950], No. 31647/50. Class 38(5) The effective length of a spring D biasing the armature C of a relay is varied by screwing a screw E into the spring and so varying the number of active turns; the tension of the spring is separately adjustable by rotating a bush G and so causing the bodily downward or upward movement of the screw E and the spring D. After the first adjustment, a split plate F which can slide in a slot in the frame I is tightened by a set screw so preventing further rotation of the screw. The spring D is connected to the armature C by way of a bimetal strip K which reduces the tension on the spring with rise of temperature and so compensates for variation of resistance of winding with temperature and keeps the operating and release voltages of the relay unchanged.
GB3164750A 1950-12-29 1950-12-29 Electromagnetic relays Expired GB700627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3164750A GB700627A (en) 1950-12-29 1950-12-29 Electromagnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3164750A GB700627A (en) 1950-12-29 1950-12-29 Electromagnetic relays

Publications (1)

Publication Number Publication Date
GB700627A true GB700627A (en) 1953-12-09

Family

ID=10326290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3164750A Expired GB700627A (en) 1950-12-29 1950-12-29 Electromagnetic relays

Country Status (1)

Country Link
GB (1) GB700627A (en)

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