GB530439A - Improvements relating to synchronous electric motors - Google Patents

Improvements relating to synchronous electric motors

Info

Publication number
GB530439A
GB530439A GB1393739A GB1393739A GB530439A GB 530439 A GB530439 A GB 530439A GB 1393739 A GB1393739 A GB 1393739A GB 1393739 A GB1393739 A GB 1393739A GB 530439 A GB530439 A GB 530439A
Authority
GB
United Kingdom
Prior art keywords
motor
rotor
boss
electric motors
improvements relating
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
GB1393739A
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.)
S Smith and Sons Ltd
S Smith and Sons Motor Accesories Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons Motor Accesories 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 S Smith and Sons Ltd, S Smith and Sons Motor Accesories Ltd filed Critical S Smith and Sons Ltd
Priority to GB1393739A priority Critical patent/GB530439A/en
Publication of GB530439A publication Critical patent/GB530439A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

530,439. Alternating-current motors. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and RUSSELL, V. J. S. May 10, 1939, No. 13937. [Class 35] In a synchronous motor for clocks &c. having a permanentmagnet rotor and a resiliently - mounted magnetic member engaging the rotor teeth for starting, as described in Specification 394,784 the centre of oscillation of the magnetic member is substantially in the rotor axis, so that the member may not strike against the stator. Fig. 5 shows a motor the rotor of which is composed of two discs l with imbricated poles k and a cylindrical magnet between them. The oscillating member consists of a three-armed spider m journalled on a boss h carrying the motor and controlled by a wire spring o engaging a slot in the boss h as shown. A modification is described with a rubber spring instead of wire.
GB1393739A 1939-05-10 1939-05-10 Improvements relating to synchronous electric motors Expired GB530439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1393739A GB530439A (en) 1939-05-10 1939-05-10 Improvements relating to synchronous electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1393739A GB530439A (en) 1939-05-10 1939-05-10 Improvements relating to synchronous electric motors

Publications (1)

Publication Number Publication Date
GB530439A true GB530439A (en) 1940-12-12

Family

ID=10032080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1393739A Expired GB530439A (en) 1939-05-10 1939-05-10 Improvements relating to synchronous electric motors

Country Status (1)

Country Link
GB (1) GB530439A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119941A (en) * 1959-04-09 1964-01-28 Berex Establishment Step by step motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119941A (en) * 1959-04-09 1964-01-28 Berex Establishment Step by step motor

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