GB541983A - Improvements in electromagnets - Google Patents

Improvements in electromagnets

Info

Publication number
GB541983A
GB541983A GB13348/40A GB1334840A GB541983A GB 541983 A GB541983 A GB 541983A GB 13348/40 A GB13348/40 A GB 13348/40A GB 1334840 A GB1334840 A GB 1334840A GB 541983 A GB541983 A GB 541983A
Authority
GB
United Kingdom
Prior art keywords
projection
core
armature
aug
coil
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
GB13348/40A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB541983A publication Critical patent/GB541983A/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
    • H01H50/24—Parts rotatable or rockable outside coil
    • H01H50/26—Parts movable about a knife edge

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

541,983. Electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 22, 1940, No. 13348. Convention date, Aug. 25, 1939. [Class 35] [Also in Group XXXVII] The core of an electromagnet is made in two parts between which is a strip of non-magnetic material secured to one part and turned up at its end to retain the other part and the coil thereon in position. Fig. 3 shows the different portions of a relay comprising such a magnet. One part 13 of the core is attached to the other non-laminated part 15 by screw 16 and nut 17. Between the two portions is a strip 18 of bronze riveted at 19 to the part 15 and having a forked turned-up end 20 engaging the end 13a of the core 13 and holding the coil 14 in position. The armature 21 is formed as a plate with notches 25 to engage projections 27 on the part 15 of the arm to form a pivot, and an opening 22 through which passes a projection 23 on the part 15. To the back of the armature are screwed a weight 28 and contact-arm 31. A projection 29 on the weight passes through an opening 30 in the projection 23 is attached to a restoring spring.
GB13348/40A 1939-08-25 1940-08-22 Improvements in electromagnets Expired GB541983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US291877A US2207572A (en) 1939-08-25 1939-08-25 Electromagnet

Publications (1)

Publication Number Publication Date
GB541983A true GB541983A (en) 1941-12-19

Family

ID=23122239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13348/40A Expired GB541983A (en) 1939-08-25 1940-08-22 Improvements in electromagnets

Country Status (2)

Country Link
US (1) US2207572A (en)
GB (1) GB541983A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558640A (en) * 1948-06-08 1951-06-26 Allis Chalmers Mfg Co Through conductor relay with detachable armature assembly
US2831649A (en) * 1950-04-17 1958-04-22 Wurlitzer Co Pallet valves
US3058039A (en) * 1957-06-24 1962-10-09 Gen Controls Co Laminated magnetic structure, and process for making same

Also Published As

Publication number Publication date
US2207572A (en) 1940-07-09

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