FIELD: electrified railways; current collectors. SUBSTANCE: upper unit has base in form of yoke box-section holder, compression spring placed between yoke and holder and vertical damper. Bushing with rod inside is passed through base and holder. Base is connected with damper housing by means of bushing. Holder is coupled with piston of the same damper by means of rod. EFFECT: improved current collecting at high speeds. 1 dwg
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