ELECTRIC CURRENT-COLLECTING DEVICES

摘要

1374243 Current collectors NATIONAL RESEARCH DEVELOPMENT CORP 7 Feb 1972 [20 Nov 1970] 55266/70 Heading B7L [Also in Division A2] An electric current is conducted from a fixed conductor rail or wire 104 to an electric vehicle, e.g. of an electric tramway or railway, by a current collecting device which comprises a circular brush 100 rotatable about a spindle 102 by frictional force of a plurality of bristles which project radially to engage grooves 106 of the rail.