GB298267A - Improvements in or relating to electro-magnets - Google Patents

Improvements in or relating to electro-magnets

Info

Publication number
GB298267A
GB298267A GB1805127A GB1805127A GB298267A GB 298267 A GB298267 A GB 298267A GB 1805127 A GB1805127 A GB 1805127A GB 1805127 A GB1805127 A GB 1805127A GB 298267 A GB298267 A GB 298267A
Authority
GB
United Kingdom
Prior art keywords
pole
piece
pieces
shoulder
permanent magnet
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
GB1805127A
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.)
HENRY EDWARD RANCE
Original Assignee
HENRY EDWARD RANCE
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 HENRY EDWARD RANCE filed Critical HENRY EDWARD RANCE
Priority to GB1805127A priority Critical patent/GB298267A/en
Publication of GB298267A publication Critical patent/GB298267A/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
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

298,267. Rance, H. E. July 7, 1927. Electromagnets.-In an electromagnet of the type comprising two concentric pole-pieces having an exciting winding between the pole-pieces and another surrounding the outer pole-piece, the polepieces are mounted on a ring - shaped permanent magnet. Fig. 1 shows such an arrangement applied to a telephone receiver. The inner pole-piece a and the outer b are mounted on connecting-pieces a<1>, b<1> secured to the ring-shaped permanent magnet e. The pole-pieces may be further connected magnetically at their base, for example by stamping the outer pole-piece out of sheet iron and bending the end over to form a disc engaging with the base of the inner pole-piece. The outer pole-piece mav approach the inner pole-piece at its upper end, either by being given a conical form, or being formed with a shoulder as shown in Fig. 6, the outer winding being arranged on the shoulder as shown.
GB1805127A 1927-07-07 1927-07-07 Improvements in or relating to electro-magnets Expired GB298267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1805127A GB298267A (en) 1927-07-07 1927-07-07 Improvements in or relating to electro-magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1805127A GB298267A (en) 1927-07-07 1927-07-07 Improvements in or relating to electro-magnets

Publications (1)

Publication Number Publication Date
GB298267A true GB298267A (en) 1928-10-08

Family

ID=10105779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1805127A Expired GB298267A (en) 1927-07-07 1927-07-07 Improvements in or relating to electro-magnets

Country Status (1)

Country Link
GB (1) GB298267A (en)

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