Process for the manufacture of collectors of direct current elec

Details Process for the manufacture of collectors of direct current elec Process for the manufacture of collectors of direct current elec

1984-01-24

1986-07-08

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Electrical device making

148108, 310179, C21D 104, C21D 110, H01R 4300

Patent

active

045984646

ABSTRACT:
Disclosed is a process for the production of a collector in the form of a collector ring for use with direct current electric machines. The process consists of heating the collector ring, comprising copper sheets and insulating mica plates, assembled in a conventional apparatus by means of an inductor coaxial with the ring, and of exposing the collector ring to a radial pressure by applying to the apparatus a pressure of a predetermined value by means of a press.

REFERENCES:
patent: 593282 (1897-11-01), Short
patent: 855134 (1907-05-01), Risbridger
patent: 3932205 (1976-01-01), Lindholm et al.
patent: 4032740 (1977-06-01), Mittelmann

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