Electricity: transmission to vehicles – Collectors – Trolley
Patent
1989-08-25
1991-08-20
Spar, Robert J.
Electricity: transmission to vehicles
Collectors
Trolley
191 45R, B60L 508
Patent
active
050417029
ABSTRACT:
A contact strip for a pantograph used on an electric railcar, comprising a front surface member which is to be in contact with the trolley wire to collect current from the latter and a rear surface member which is to be fixed to the collector head, the front surface member being made of an abrasion-resistant metal plate having desired mechanical characteristics and resistivity, the rear surface member being made of a metal plate having the better mechanical characteristics, a same or lower resistivity than the front surface member and a specific gravity less than that of the front surface member, the front and rear surface members being connected integrally to each other. Therefore, the specific gravity of the entire contact strip can be reduced while maintaining the mechanical and electrical characteristics required for the contact strips for the pantograph used on high-speed electric railcars and also the follow-up, or connection, of the contact strip with the trolley wire can be remarkably improved, whereby the arcing between the contact strips and trolley wire can be considerably reduced. Thus, the mechanical abrasion and arcing-caused abrasion of the trolley wire and contact strips can be minimized.
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Lowe Scott L.
Spar Robert J.
Teikoku Carbon Industry Co., Ltd.
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