Electric traction current-collector
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United States of America Patent
Stats
-
Mar 25, 1986
Grant Date -
N/A
app pub date -
Jun 20, 1983
filing date -
Oct 22, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric traction current-collector has a carbon current-collector block (1) housing a rupturable tubular container (7 l ) for air under pressure applied through a pneumatic control system for a pantograph or other carrier so that loss of air pressure due to rupture of the container causes the current-collector block to be retracted. The container (7) is so thin that, if it is not completely housed and supported, it bursts under the applied air pressure and consequently any defect in the carbon block which spoils complete support of the container causes retraction of the current-collector.
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