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GB392204A - Improvements in brushes and brush holders suitable for dynamo electric machines - Google Patents

Improvements in brushes and brush holders suitable for dynamo electric machines

Info

Publication number
GB392204A
GB392204A GB31409/31A GB3140931A GB392204A GB 392204 A GB392204 A GB 392204A GB 31409/31 A GB31409/31 A GB 31409/31A GB 3140931 A GB3140931 A GB 3140931A GB 392204 A GB392204 A GB 392204A
Authority
GB
United Kingdom
Prior art keywords
brush
projection
lever
brushes
electric machines
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
GB31409/31A
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.)
Morgan Advanced Materials PLC
Original Assignee
Morgan Crucible Co PLC
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 Morgan Crucible Co PLC filed Critical Morgan Crucible Co PLC
Priority to GB31409/31A priority Critical patent/GB392204A/en
Publication of GB392204A publication Critical patent/GB392204A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders
    • H01R39/381—Brush holders characterised by the application of pressure to brush
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/10—Arrangements of brushes or commutators specially adapted for improving commutation
    • 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
    • H02K23/18—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having displaceable main or auxiliary brushes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
    • H02K5/148—Slidably supported brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

392,204. Brushes and brush-holders for dynamo-electric machines. MORGAN CRUCIBLE CO., Ltd., Battersea Works, Church Road, London, and HEWS, C. J., 15, Dalmeney Road, Carshalton, Surrey. Nov. 12, 1931, No. 31409. [Class 35.] A brush and brushholder combination comprises a brush a having a projection d extending in the direction of the brush thickness and a holder having a pressure device to act on this projection to maintain the brush against one face of its guide irrespective of the direction of rotation. In the form shown, the pressure is exerted by the roller e<1> carried on the lever e, and the brush guide b is slotted at i to prevent the lever e being impeded when the brush wears. In a modified form, the lever e may bear directly on the projection which may extend at rightangles to the side of the brush, or a spring may serve as the pressure device. The projection may be a piece of metal or other material attached to the brush or be part of the brush itself.
GB31409/31A 1931-11-12 1931-11-12 Improvements in brushes and brush holders suitable for dynamo electric machines Expired GB392204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB31409/31A GB392204A (en) 1931-11-12 1931-11-12 Improvements in brushes and brush holders suitable for dynamo electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31409/31A GB392204A (en) 1931-11-12 1931-11-12 Improvements in brushes and brush holders suitable for dynamo electric machines

Publications (1)

Publication Number Publication Date
GB392204A true GB392204A (en) 1933-05-12

Family

ID=10322678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31409/31A Expired GB392204A (en) 1931-11-12 1931-11-12 Improvements in brushes and brush holders suitable for dynamo electric machines

Country Status (1)

Country Link
GB (1) GB392204A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744170B1 (en) 1998-02-06 2004-06-01 Black & Decker Inc. Brush assembly
WO2013068266A1 (en) * 2011-11-09 2013-05-16 Robert Bosch Gmbh Vibration-reduced brush holder for an electric motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744170B1 (en) 1998-02-06 2004-06-01 Black & Decker Inc. Brush assembly
WO2013068266A1 (en) * 2011-11-09 2013-05-16 Robert Bosch Gmbh Vibration-reduced brush holder for an electric motor
US9640929B2 (en) 2011-11-09 2017-05-02 Robert Bosch Gmbh Vibration-reduced brush holder for an electric motor

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