GB542045A - Improvements in electromagnets - Google Patents

Improvements in electromagnets

Info

Publication number
GB542045A
GB542045A GB13555/40A GB1355540A GB542045A GB 542045 A GB542045 A GB 542045A GB 13555/40 A GB13555/40 A GB 13555/40A GB 1355540 A GB1355540 A GB 1355540A GB 542045 A GB542045 A GB 542045A
Authority
GB
United Kingdom
Prior art keywords
core
portions
limb
laminations
armature
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
GB13555/40A
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 GB542045A publication Critical patent/GB542045A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

542,045. Electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 28, 1940, No. 13555. Convention date, Aug. 28, 1939. [Class 35] [Also in Group XXXVII] The core of an electromagnet is made of three portions placed side by side and separated by layers of non-magnetic material, the middle portion being of U- or L-shape and forming one pole and carrying the winding and the other pole being formed by the two outer portions which may be provided with pivots to carry the armature. Figs. 1 and 3 show a core of which the middle part 10 is formed of V-shaped laminations with a coil arm carried on their upper limb 10c. Only one of the two side groups is shown in Fig. 3 and each consists of L-shaped laminations 11 clamped to the portions 10a, 10b of the middle part of the core and separated therefrom by non- magnetic insulating material 13. The limbs 11 b of the side laminations 11 are prolonged beyond the lower limbs 10a of the middle portion 10 and are rotated at 22 to form a pivot for the armature 18 which is spring-restored against a strip 26 and carries a contact 24. The limb 10c of the central portion may carry a damping winding 28 and the three parts of the core may each be made of a single unlaminated piece. In an alternative form the lower limb 10a of the central portions 10 may be omitted.
GB13555/40A 1939-08-28 1940-08-28 Improvements in electromagnets Expired GB542045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US542045XA 1939-08-28 1939-08-28

Publications (1)

Publication Number Publication Date
GB542045A true GB542045A (en) 1941-12-23

Family

ID=21989438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13555/40A Expired GB542045A (en) 1939-08-28 1940-08-28 Improvements in electromagnets

Country Status (1)

Country Link
GB (1) GB542045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160362A (en) * 1984-06-13 1985-12-18 Bbc Brown Boveri & Cie Electromagnetic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160362A (en) * 1984-06-13 1985-12-18 Bbc Brown Boveri & Cie Electromagnetic device

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