GB836420A - Improvements in or relating to electric current-collecting brushes - Google Patents

Improvements in or relating to electric current-collecting brushes

Info

Publication number
GB836420A
GB836420A GB2125956A GB2125956A GB836420A GB 836420 A GB836420 A GB 836420A GB 2125956 A GB2125956 A GB 2125956A GB 2125956 A GB2125956 A GB 2125956A GB 836420 A GB836420 A GB 836420A
Authority
GB
United Kingdom
Prior art keywords
brush
parts
electric
july
slotted
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
GB2125956A
Inventor
Percy Edward Lyddon
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 Crucible Co 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 GB2125956A priority Critical patent/GB836420A/en
Publication of GB836420A publication Critical patent/GB836420A/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
    • H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Abstract

836,420. Brushes for electric machines. MORGAN CRUCIBLE CO. Ltd. July 1, 1957 [July 9, 1956], No. 21259/56. Class 35. In an electric current-collecting brush cornprising a succession of at least two separatelymade brush parts to collect and transmit current in respective parallel paths between the surface 1 of an electric commutator or slip-ring a terminal connection, not shown, a brush part or parts has at least one slot disposed generally transversely to the longitudinal axis of the brush to create a greater total electrical resistance in one or more of the parallel paths than in another. The sandwich brush shown in Figs. 1 and 2 comprises two parts 11, 12 bonded together with an intervening layer of electrical insulation one, 11, of which parts is slotted while to the other, 12, is attached by a rivet 7 a flexible lead 31; in another embodiment for reversible machines there is also a slotted part on the opposite face of the part 12. The split tandem brush shown in Fig. 4 has two transverse slots defining a tortuous current path in one part 19 and both parts 18, 19 have respective leads 32, 33, spring fingers 42, 43 bearing on the top of the brush. In another embodiment the slot is tapered. The differential resistance may be achieved by the slots in combination with the means disclosed in Specification 832,903, which is referred to.
GB2125956A 1956-07-09 1956-07-09 Improvements in or relating to electric current-collecting brushes Expired GB836420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2125956A GB836420A (en) 1956-07-09 1956-07-09 Improvements in or relating to electric current-collecting brushes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2125956A GB836420A (en) 1956-07-09 1956-07-09 Improvements in or relating to electric current-collecting brushes

Publications (1)

Publication Number Publication Date
GB836420A true GB836420A (en) 1960-06-01

Family

ID=10159894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2125956A Expired GB836420A (en) 1956-07-09 1956-07-09 Improvements in or relating to electric current-collecting brushes

Country Status (1)

Country Link
GB (1) GB836420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823039A (en) * 1985-12-18 1989-04-18 Cedric Lynch Electrical machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823039A (en) * 1985-12-18 1989-04-18 Cedric Lynch Electrical machines

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