GB619481A - Improvements in or relating to miniature electric motors - Google Patents

Improvements in or relating to miniature electric motors

Info

Publication number
GB619481A
GB619481A GB3674146A GB3674146A GB619481A GB 619481 A GB619481 A GB 619481A GB 3674146 A GB3674146 A GB 3674146A GB 3674146 A GB3674146 A GB 3674146A GB 619481 A GB619481 A GB 619481A
Authority
GB
United Kingdom
Prior art keywords
shaft
armature
stationary
magnet
coils
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
GB3674146A
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.)
JAMES REGINALD ROTHEROE
Original Assignee
JAMES REGINALD ROTHEROE
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 JAMES REGINALD ROTHEROE filed Critical JAMES REGINALD ROTHEROE
Priority to GB3674146A priority Critical patent/GB619481A/en
Publication of GB619481A publication Critical patent/GB619481A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/56—Motors or generators having iron cores separated from armature winding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)

Abstract

619,481. Machines with permanent magnets. VAUGHAN, R. C., and ROTHEROE, J. R. Dec. 12, 1946, No. 36741. [Class 35] The armature of a miniature electric motor is wound in a number of coils each encircling the field magnet around which it is arranged to rotate. A thin shaft 3 which is kept under tension to increase its rigidity carries the stationary magnet 1 and the non-magnetic cylindrical former 5 on which the coils are wound and which may be of cardboard &c., is supported by non-magnetic end plates 4 carried on sleeves 4<SP>1</SP> freely rotatable on the stationary shaft. The commutator is engaged by wire brushes 18 and consists of strips of brass 9 secured at their ends by insulating washers 10 whilst the drive is taken from a pinion 12, freely rotatable on the shaft 3 and driven by arms 13 engaging slots 14 in the armature. The motor is covered by a soft iron casing 15 to which the ends of the shaft are bent over at 20, 23 to enable a tension to be produced in the shaft by a nut 24 and sleeve 21. The Specification also describes a modification in which the drive is taken directly from a shaft rotating with the armature, the magnet being supported by a stationary shaft on which the commutator rotates as before.
GB3674146A 1946-12-12 1946-12-12 Improvements in or relating to miniature electric motors Expired GB619481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3674146A GB619481A (en) 1946-12-12 1946-12-12 Improvements in or relating to miniature electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3674146A GB619481A (en) 1946-12-12 1946-12-12 Improvements in or relating to miniature electric motors

Publications (1)

Publication Number Publication Date
GB619481A true GB619481A (en) 1949-03-09

Family

ID=10390831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3674146A Expired GB619481A (en) 1946-12-12 1946-12-12 Improvements in or relating to miniature electric motors

Country Status (1)

Country Link
GB (1) GB619481A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860267A (en) * 1955-03-16 1958-11-11 Singer Mfg Co Dynamoelectric machines
US3225235A (en) * 1961-09-29 1965-12-21 Lee Royal Dynamo-electric machine stator structure
US3305741A (en) * 1963-03-05 1967-02-21 Lindner Josef Miniature electric motor
US3356877A (en) * 1966-02-16 1967-12-05 Circuit Res Company Electromechanical energy converter of the double air gap type
US3366813A (en) * 1963-08-16 1968-01-30 Asea Ab Rotating electrical machine, preferably high power machine
DE1283347B (en) * 1965-04-01 1968-11-21 Retobobina Handelsanstalt Electric direct current motor with pot-shaped rotor body

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860267A (en) * 1955-03-16 1958-11-11 Singer Mfg Co Dynamoelectric machines
US3225235A (en) * 1961-09-29 1965-12-21 Lee Royal Dynamo-electric machine stator structure
US3305741A (en) * 1963-03-05 1967-02-21 Lindner Josef Miniature electric motor
DE1262420B (en) * 1963-03-05 1968-03-07 Ernst Weiss Dipl Kfm Small electric motor, especially for a magnetic recorder
US3366813A (en) * 1963-08-16 1968-01-30 Asea Ab Rotating electrical machine, preferably high power machine
DE1283347B (en) * 1965-04-01 1968-11-21 Retobobina Handelsanstalt Electric direct current motor with pot-shaped rotor body
US3356877A (en) * 1966-02-16 1967-12-05 Circuit Res Company Electromechanical energy converter of the double air gap type

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