Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 304
Trolley Base frame, free to rotate in a horizontal plane;the frame in turn carries the trolley A (seefig.), which is pivoted to move in a verticalplane, and is pressed upwards against theoverhead conductor by springs B attached tothe frame. Trolley Bushing, a tube of metal orgraphite forming the… … ROD TYPE OF TROLLEY
Electrical engineering
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
