GB444644A - Improvements in and relating to drum-wound armatures of dynamo-electric machines - Google Patents

Improvements in and relating to drum-wound armatures of dynamo-electric machines

Info

Publication number
GB444644A
GB444644A GB2854734A GB2854734A GB444644A GB 444644 A GB444644 A GB 444644A GB 2854734 A GB2854734 A GB 2854734A GB 2854734 A GB2854734 A GB 2854734A GB 444644 A GB444644 A GB 444644A
Authority
GB
United Kingdom
Prior art keywords
rings
armature
dynamo
electric machines
class
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
GB2854734A
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.)
SUPRA ELECTRA MOTORS Ltd
Original Assignee
SUPRA ELECTRA MOTORS 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 SUPRA ELECTRA MOTORS Ltd filed Critical SUPRA ELECTRA MOTORS Ltd
Priority to GB2854734A priority Critical patent/GB444644A/en
Publication of GB444644A publication Critical patent/GB444644A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/26—Rotor cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew

Abstract

444,644. Dynamo - electric machines. ZETSCHE, J., 28, Carlton Road, Romford, Essex, and SUPRA ELECTRA MOTORS, Ltd., 48, Southwark Bridge Road, London. Oct. 5, 1934, No. 28547. [Class 35] In a drum wound armature rotor having open slots, a cylindrical closure of magnetic material is provided around the periphery forming a rigid non-extensible connection with the armature stampings irrespective of temperature variations ; for the purpose of reducing eddy currents the magnetic closure is split transversely into a number of separate rings as shown in the Figure or is grooved transversely or helically to a considerable depth. The separate rings d may have a width equal to two and a half times the thickness and eddy currents may be reduced by insulating the rings, for instance, by treating one side of each ring with paint. The rings may be forced on to the rotor against a shoulder e<1> on one of the end plates e. The use of a wire binding for the armature is disclaimed. Specifications 327,249, 328,722, [both in Class 35], and 430,910 are referred to.
GB2854734A 1934-10-05 1934-10-05 Improvements in and relating to drum-wound armatures of dynamo-electric machines Expired GB444644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2854734A GB444644A (en) 1934-10-05 1934-10-05 Improvements in and relating to drum-wound armatures of dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2854734A GB444644A (en) 1934-10-05 1934-10-05 Improvements in and relating to drum-wound armatures of dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB444644A true GB444644A (en) 1936-03-25

Family

ID=10277355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2854734A Expired GB444644A (en) 1934-10-05 1934-10-05 Improvements in and relating to drum-wound armatures of dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB444644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539747A (en) * 1949-08-29 1951-01-30 Leland Electric Co High-speed rotor for dynamoelectric machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539747A (en) * 1949-08-29 1951-01-30 Leland Electric Co High-speed rotor for dynamoelectric machines

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