GB946279A - Circuit-breaking carbon brushes - Google Patents

Circuit-breaking carbon brushes

Info

Publication number
GB946279A
GB946279A GB3799962A GB3799962A GB946279A GB 946279 A GB946279 A GB 946279A GB 3799962 A GB3799962 A GB 3799962A GB 3799962 A GB3799962 A GB 3799962A GB 946279 A GB946279 A GB 946279A
Authority
GB
United Kingdom
Prior art keywords
bore
brush
commutator
plunger
circuit
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
GB3799962A
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.)
Schunk and Ebe GmbH
Original Assignee
Schunk and Ebe GmbH
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 Schunk and Ebe GmbH filed Critical Schunk and Ebe GmbH
Publication of GB946279A publication Critical patent/GB946279A/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
    • H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Abstract

946,279. Brushes for dynamo-electric machines. SCHUNK & EBE G.m.b.H. Oct. 8, 1962 [July 20, 1962], No. 37999/62. Heading H2A. A brush 1 has a blind bore 2 in which is located a plunger 4 of electrically insulating material held between the blind end 3 of the bore and a fully compressed spring 5 by a cover plate 6 which is retained in the bore by a rammed plug of powdered copper 8. When the brush wears down sufficiently to uncover bore 3 the plunger 4 bears on the commutator and lifts the worn brush clear so that damage to the commutator is prevented. The cover 6 is a force fit in bore 2 and may form part of the connecting pigtail 7. The powder plug may be sealed in place by a lacquer coating.
GB3799962A 1962-07-20 1962-10-08 Circuit-breaking carbon brushes Expired GB946279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH31775A DE1227134B (en) 1962-07-20 1962-07-20 Switch-off carbon brush

Publications (1)

Publication Number Publication Date
GB946279A true GB946279A (en) 1964-01-08

Family

ID=7432223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3799962A Expired GB946279A (en) 1962-07-20 1962-10-08 Circuit-breaking carbon brushes

Country Status (2)

Country Link
DE (1) DE1227134B (en)
GB (1) GB946279A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740277A1 (en) * 1995-09-28 1997-04-25 Sb Power Tool Co ELECTRIC BRAKE FOR SWITCHED MOTOR
GB2335801A (en) * 1998-03-24 1999-09-29 Bosch Gmbh Robert Commutation brush having a cutoff member supported on a flat cap

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE621596C (en) * 1935-11-09 Siemens Schuckertwerke Akt Ges Device to prevent exceeding the permissible brush wear on collectors
DE580792C (en) * 1929-07-02 1933-08-09 Siemens Schuckertwerke Akt Ges Device to prevent exceeding the permissible brush wear on collectors
DE614404C (en) * 1931-01-29 1935-06-07 Siemens Schuckertwerke Akt Ges Device to prevent exceeding the permissible brush wear on collectors
DE745975C (en) * 1943-01-21 1944-12-13 Ringsdorff Werke K G Method for reinforcing carbon brushes
DE847307C (en) * 1948-12-08 1952-08-21 Siemens Ag Arrangement on sliding contact pieces, in particular made of coal or the like for electrical machines and apparatus
DE919248C (en) * 1951-05-01 1954-10-18 Ringsdorff Werke Gmbh Carbon brush for small machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740277A1 (en) * 1995-09-28 1997-04-25 Sb Power Tool Co ELECTRIC BRAKE FOR SWITCHED MOTOR
GB2306793A (en) * 1995-09-28 1997-05-07 Sb Power Tool Co Brush wear limiting means in a regenerative braked power tool
GB2306793B (en) * 1995-09-28 2000-04-26 Sb Power Tool Co Elecric brake for commutated motor
GB2335801A (en) * 1998-03-24 1999-09-29 Bosch Gmbh Robert Commutation brush having a cutoff member supported on a flat cap
GB2335801B (en) * 1998-03-24 2000-06-07 Bosch Gmbh Robert Commutation brush for electrical commutator machines

Also Published As

Publication number Publication date
DE1227134B (en) 1966-10-20

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