GB577400A - Improvements in and relating to dynamo-electric machines - Google Patents

Improvements in and relating to dynamo-electric machines

Info

Publication number
GB577400A
GB577400A GB812044A GB812044A GB577400A GB 577400 A GB577400 A GB 577400A GB 812044 A GB812044 A GB 812044A GB 812044 A GB812044 A GB 812044A GB 577400 A GB577400 A GB 577400A
Authority
GB
United Kingdom
Prior art keywords
spring
brush
dynamo
pocket
insulating member
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
GB812044A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB812044A priority Critical patent/GB577400A/en
Publication of GB577400A publication Critical patent/GB577400A/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

577,400. Brushes for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., and HEWITT, W. May 1, 1944, No. 8120. [Class 35] A brush has a pocket containing an insulating member under pressure so arranged that when the brush wears down to the bottom of the pocket the spring forces the insulating member on to the commutator and raises the remainder of the brush. In the form shown, the spring 4 is stronger than spring 6 but is held between the insulating member 3 and the plug 5 until the brush wears down to the pocket 2 whereupon the spring 4 becomes effective to press the insulating cap 3 against the commutator and raise the brush. remnant. In a modification a bowed spring is used in place of the coil type.
GB812044A 1944-05-01 1944-05-01 Improvements in and relating to dynamo-electric machines Expired GB577400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB812044A GB577400A (en) 1944-05-01 1944-05-01 Improvements in and relating to dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB812044A GB577400A (en) 1944-05-01 1944-05-01 Improvements in and relating to dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB577400A true GB577400A (en) 1946-05-16

Family

ID=9846148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB812044A Expired GB577400A (en) 1944-05-01 1944-05-01 Improvements in and relating to dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB577400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813208A (en) * 1954-04-20 1957-11-12 George D Ritter Electrical contact brush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813208A (en) * 1954-04-20 1957-11-12 George D Ritter Electrical contact brush

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