GB677779A - Improvements relating to the manufacture of commutators for dynamo-electric machines - Google Patents

Improvements relating to the manufacture of commutators for dynamo-electric machines

Info

Publication number
GB677779A
GB677779A GB1353749A GB1353749A GB677779A GB 677779 A GB677779 A GB 677779A GB 1353749 A GB1353749 A GB 1353749A GB 1353749 A GB1353749 A GB 1353749A GB 677779 A GB677779 A GB 677779A
Authority
GB
United Kingdom
Prior art keywords
blank
insulating material
segments
tongues
dynamo
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
GB1353749A
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.)
Hoover Ltd
Original Assignee
Hoover 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 Hoover Ltd filed Critical Hoover Ltd
Priority to GB1353749A priority Critical patent/GB677779A/en
Publication of GB677779A publication Critical patent/GB677779A/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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/06—Manufacture of commutators
    • H01R43/08—Manufacture of commutators in which segments are not separated until after assembly

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

677,779. Making commutators for dynamoelectric machines. HOOVER, Ltd., and CAMPRUBI, B. May 12, 1950 [May 20, 1949,] No. 13537/49. Classes 83 (ii) and 83 (iv). [Also in Group XXXV] Extruding. -In a method of making a commutator for a dynamo-electric machine a billet of copper &c. is backward-extruded in a die B2, Fig. 2, by an impacting plunger B<SP>1</SP> having longitudinal grooves which form similar tongues on the inner surface of the blank to engage a body of insulating material subsequently moulded in the centre. The billet may be cylindrical to produce a cupped blank, as shown, or annular to produce a flanged blank. The inwardly-projecting tongues D, Fig. 5, may diverge or converge in pairs to dovetail with the insulating material C. The end wall or flange A<SP>2</SP> of the blank is removed before the insulating material C is moulded inside and the blank is longitudinally divided to form segments. In a modification, a plunger may form deep grooves F, Fig. 7, and cylindrical or dovetail-headed tongues G for engaging the insulating material and the segments are separated by turning down the outer face of the blank in a lathe. In a further modification the segments have split parallel sided tongues at each end of the segments which diverge in opposite directions for locking in the insulating material.
GB1353749A 1949-05-20 1949-05-20 Improvements relating to the manufacture of commutators for dynamo-electric machines Expired GB677779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1353749A GB677779A (en) 1949-05-20 1949-05-20 Improvements relating to the manufacture of commutators for dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1353749A GB677779A (en) 1949-05-20 1949-05-20 Improvements relating to the manufacture of commutators for dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB677779A true GB677779A (en) 1952-08-20

Family

ID=10024772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1353749A Expired GB677779A (en) 1949-05-20 1949-05-20 Improvements relating to the manufacture of commutators for dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB677779A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864157A (en) * 1952-06-24 1958-12-16 Hoover Co Method of making commutators
DE1073080B (en) * 1953-04-14 1960-01-14 Hoover Limited, Penvale, Greenford, Middlesex (Großbritannien) Process for the production of drum current inverters for dynamoelectric machines
DE1089059B (en) * 1957-11-23 1960-09-15 Bosch Gmbh Robert Process for the manufacture of rolling commutators
US2984715A (en) * 1959-04-24 1961-05-16 Gen Devices Inc Sub-miniature multi-signal mechanical commutator
US3174318A (en) * 1958-01-23 1965-03-23 Daniel M Fox Method of forming articles from ductile materials
US3521473A (en) * 1966-04-02 1970-07-21 Seidel Kg Geb Method of and apparatus for making metallic closures
US3719068A (en) * 1970-04-10 1973-03-06 Hitachi Ltd Method of manufacturing an article having a cylindrical peripheral wall and integral thin-walled portions inwardly thereof
DE2544325A1 (en) * 1975-10-03 1977-04-14 Hitachi Ltd Copper commutator ring with complex inner and outer profile - made using press tools designed for very long life
WO1983003324A1 (en) * 1982-03-12 1983-09-29 Hansen, Leif A method of manufacturing commutators
FR2742008A1 (en) * 1995-12-05 1997-06-06 Rockwell Lvs Manufacture of commutator for rotatable electrical machine, e.g. electric motor
FR2754647A1 (en) * 1996-10-16 1998-04-17 Rockwell Lvs METHOD FOR MANUFACTURING A COLLECTOR OF A ROTARY MACHINE AND MANIFOLD MANUFACTURED ACCORDING TO THIS METHOD
FR2777123A1 (en) * 1998-04-06 1999-10-08 Meritor Light Vehicle Sys Ltd METHOD FOR MANUFACTURING A COLLECTOR OF A ROTARY MACHINE AND COLLECTOR OBTAINED BY THIS METHOD
DE10063248B4 (en) * 1999-12-20 2009-09-24 Asmo Co., Ltd., Kosai Commutator forming plate, method of manufacture and motor with it

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864157A (en) * 1952-06-24 1958-12-16 Hoover Co Method of making commutators
DE1073080B (en) * 1953-04-14 1960-01-14 Hoover Limited, Penvale, Greenford, Middlesex (Großbritannien) Process for the production of drum current inverters for dynamoelectric machines
DE1089059B (en) * 1957-11-23 1960-09-15 Bosch Gmbh Robert Process for the manufacture of rolling commutators
US3174318A (en) * 1958-01-23 1965-03-23 Daniel M Fox Method of forming articles from ductile materials
US2984715A (en) * 1959-04-24 1961-05-16 Gen Devices Inc Sub-miniature multi-signal mechanical commutator
US3521473A (en) * 1966-04-02 1970-07-21 Seidel Kg Geb Method of and apparatus for making metallic closures
US3719068A (en) * 1970-04-10 1973-03-06 Hitachi Ltd Method of manufacturing an article having a cylindrical peripheral wall and integral thin-walled portions inwardly thereof
DE2544325A1 (en) * 1975-10-03 1977-04-14 Hitachi Ltd Copper commutator ring with complex inner and outer profile - made using press tools designed for very long life
WO1983003324A1 (en) * 1982-03-12 1983-09-29 Hansen, Leif A method of manufacturing commutators
FR2742008A1 (en) * 1995-12-05 1997-06-06 Rockwell Lvs Manufacture of commutator for rotatable electrical machine, e.g. electric motor
FR2754647A1 (en) * 1996-10-16 1998-04-17 Rockwell Lvs METHOD FOR MANUFACTURING A COLLECTOR OF A ROTARY MACHINE AND MANIFOLD MANUFACTURED ACCORDING TO THIS METHOD
EP0837533A1 (en) * 1996-10-16 1998-04-22 Meritor Light Vehicle Systems-France Method of producing a commutator of a rotating machine and a commutator manufactured by the method
FR2777123A1 (en) * 1998-04-06 1999-10-08 Meritor Light Vehicle Sys Ltd METHOD FOR MANUFACTURING A COLLECTOR OF A ROTARY MACHINE AND COLLECTOR OBTAINED BY THIS METHOD
EP0949726A1 (en) * 1998-04-06 1999-10-13 Meritor Light Vehicle Systems-France Manufacturing process for the collector of a rotary machine and related collector
DE10063248B4 (en) * 1999-12-20 2009-09-24 Asmo Co., Ltd., Kosai Commutator forming plate, method of manufacture and motor with it

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