GB184889A - Improvements in dynamo electric machines - Google Patents

Improvements in dynamo electric machines

Info

Publication number
GB184889A
GB184889A GB1432421A GB1432421A GB184889A GB 184889 A GB184889 A GB 184889A GB 1432421 A GB1432421 A GB 1432421A GB 1432421 A GB1432421 A GB 1432421A GB 184889 A GB184889 A GB 184889A
Authority
GB
United Kingdom
Prior art keywords
pole
subdivided
electric machines
rearward
field
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
GB1432421A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1432421A priority Critical patent/GB184889A/en
Publication of GB184889A publication Critical patent/GB184889A/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
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/20—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having additional brushes spaced intermediately of the main brushes on the commutator, e.g. cross-field machines, metadynes, amplidynes or other armature-reaction excited machines

Landscapes

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

Abstract

184,889. Midgley, A. H. May 23, 1921. Exciting.-In order to maintain constant the output of dynamo-electric machines at varying speeds, the field magnet is provided with a subdivided pole, and the winding on the rearward part of the subdivided pole is supplied with current at approximately constant voltage while the field winding of the forward part is supplied with current from the conductors lying under the poleface of the rearward part. In the two-pole machine shown, each pole is subdivided. The field windings on the rearward parts a<1>, b of the poles are connected across the main brushes c, d, while the field windings on the forward parts a, b<1> are connected across the brushes d, f and c, e respectively. The invention is particularly applicable to dynamos for train lighting or for use on motor vehicles and motor boats.
GB1432421A 1921-05-23 1921-05-23 Improvements in dynamo electric machines Expired GB184889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1432421A GB184889A (en) 1921-05-23 1921-05-23 Improvements in dynamo electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1432421A GB184889A (en) 1921-05-23 1921-05-23 Improvements in dynamo electric machines

Publications (1)

Publication Number Publication Date
GB184889A true GB184889A (en) 1922-08-23

Family

ID=10039128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1432421A Expired GB184889A (en) 1921-05-23 1921-05-23 Improvements in dynamo electric machines

Country Status (1)

Country Link
GB (1) GB184889A (en)

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