Carbon friction strip with a damage detection facility

Details Carbon friction strip with a damage detection facility Carbon friction strip with a damage detection facility

1991-06-14

1993-01-05

Bucci, David A.

Electricity: transmission to vehicles

Collectors

Trolley retrievers

191 591, B60L 508

Patent

active

051762307

ABSTRACT:
The invention relates to a friction strip serving for the transfer of electrical energy to rolling stock and comprising a damage detection device. The friction strip consists of a wearing strip (2) of carbon based material comprising a groove (3) on its face which is in contact with the stirrup member (5) and a tightly sealed tube (4) placed in the groove is connected to the detection device. The material constituting the tube and the material constituting the wearing strip are selected to have closely related mechanical and thermo-mechanical characteristics; this is achieved with a tightly sealed tube of carbon based material. The invention also relates to the method of producing the friction strip.

REFERENCES:
patent: 3394365 (1968-07-01), Nealis
patent: 4578546 (1986-03-01), Ferguson

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