GB569351A - Improvements in brush lifting mechanism for electric motors - Google Patents

Improvements in brush lifting mechanism for electric motors

Info

Publication number
GB569351A
GB569351A GB3355/43A GB335543A GB569351A GB 569351 A GB569351 A GB 569351A GB 3355/43 A GB3355/43 A GB 3355/43A GB 335543 A GB335543 A GB 335543A GB 569351 A GB569351 A GB 569351A
Authority
GB
United Kingdom
Prior art keywords
brushes
brush
commutator
electric motors
pivoted
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
GB3355/43A
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.)
Jack and Heintz Inc
Original Assignee
Jack and Heintz Inc
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 Jack and Heintz Inc filed Critical Jack and Heintz Inc
Publication of GB569351A publication Critical patent/GB569351A/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
    • H01R39/42—Devices for lifting brushes

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

569,351. Brush-gear for electric motors. JACK & HEINTZ, Inc. March 1, 1943, No. 3355. Convention date, July 11, 1941. [Class 35] A removable brush-carrying and -lifting unit for a motor, more particularly a motor for impulse starters of aircraft engines, comprises a plate 16 bolted to the commutator casing 8 of the machine and carrying insulated arms 17 terminating in contacts 18 which are clamped to binding posts 49 in a terminal box to which current for the brushes 28 is supplied. The brushes are mounted in holders 25, arranged in pairs and pivoted to the arms 17 at 26, springs 35 urging the brushes towards the commutator 4. Insulated rollers 30, engaging lugs 29 on the brush holders, are carried by toggle levers 48 which normally hold the brushes off the commutator under the action of a compression spring 41 arranged between the fixed core 39a and movable core 38a of a solenoid 38, the levers being pivoted to the movable core. Energisation of the solenoid winding removes the spring pressure on the toggle joint and allows the brush springs 35 to move the brushes into contact with the commutator.
GB3355/43A 1941-07-11 1943-03-01 Improvements in brush lifting mechanism for electric motors Expired GB569351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US402022A US2324156A (en) 1941-07-11 1941-07-11 Brush lifting relay mechanism

Publications (1)

Publication Number Publication Date
GB569351A true GB569351A (en) 1945-05-18

Family

ID=23590219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3355/43A Expired GB569351A (en) 1941-07-11 1943-03-01 Improvements in brush lifting mechanism for electric motors

Country Status (2)

Country Link
US (1) US2324156A (en)
GB (1) GB569351A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842693A (en) * 1957-05-17 1958-07-08 Gen Electric Support fixture
US4596941A (en) * 1982-08-18 1986-06-24 Itt Industries, Inc. Electric motor
WO2001080377A1 (en) * 2000-04-14 2001-10-25 Robert Bosch Gmbh Electrical machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446297A (en) * 1944-03-07 1948-08-03 Bendix Aviat Corp Starter
US3278777A (en) * 1964-05-25 1966-10-11 Allis Chalmers Mfg Co Brush lifting device for dynamoelectric machines
JPH09310666A (en) * 1996-05-20 1997-12-02 Denso Corp Starter
DE19650224A1 (en) * 1996-12-04 1998-06-10 Bosch Gmbh Robert Commutator motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842693A (en) * 1957-05-17 1958-07-08 Gen Electric Support fixture
US4596941A (en) * 1982-08-18 1986-06-24 Itt Industries, Inc. Electric motor
WO2001080377A1 (en) * 2000-04-14 2001-10-25 Robert Bosch Gmbh Electrical machine

Also Published As

Publication number Publication date
US2324156A (en) 1943-07-13

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