GB1274755A - Improvements in and relating to dynamo-electric machines - Google Patents

Improvements in and relating to dynamo-electric machines

Info

Publication number
GB1274755A
GB1274755A GB1565169A GB1565169A GB1274755A GB 1274755 A GB1274755 A GB 1274755A GB 1565169 A GB1565169 A GB 1565169A GB 1565169 A GB1565169 A GB 1565169A GB 1274755 A GB1274755 A GB 1274755A
Authority
GB
United Kingdom
Prior art keywords
dynamo
electric machines
relating
march
carbon
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
GB1565169A
Inventor
Geoffrey Alan Wilkin
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.)
International Research and Development Co Ltd
Original Assignee
International Research and Development Co 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 International Research and Development Co Ltd filed Critical International Research and Development Co Ltd
Priority to GB1565169A priority Critical patent/GB1274755A/en
Publication of GB1274755A publication Critical patent/GB1274755A/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
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Abstract

1,274,755. Brush gear for dynamo-electric machines. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 24 March, 1970 [25 March, 1969], No. 15651/69. Heading H2A. A dynamo-electric machine includes carbon or graphite fibre brushes operating in a reducing atmosphere, e.g. a hydrogen-nitrogen mixture. The carbon or graphite fibres may be coated with metallic films. Use of an inert atmosphere is also considered.
GB1565169A 1969-03-25 1969-03-25 Improvements in and relating to dynamo-electric machines Expired GB1274755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1565169A GB1274755A (en) 1969-03-25 1969-03-25 Improvements in and relating to dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1565169A GB1274755A (en) 1969-03-25 1969-03-25 Improvements in and relating to dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB1274755A true GB1274755A (en) 1972-05-17

Family

ID=10062975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1565169A Expired GB1274755A (en) 1969-03-25 1969-03-25 Improvements in and relating to dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB1274755A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404938A1 (en) * 1977-09-30 1979-04-27 Westinghouse Electric Corp SOLID CURRENT COLLECTOR KIT
FR2460053A1 (en) * 1979-06-25 1981-01-16 Westinghouse Electric Corp ELECTRIC MACHINE WITH HIGH CURRENT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404938A1 (en) * 1977-09-30 1979-04-27 Westinghouse Electric Corp SOLID CURRENT COLLECTOR KIT
FR2460053A1 (en) * 1979-06-25 1981-01-16 Westinghouse Electric Corp ELECTRIC MACHINE WITH HIGH CURRENT

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee