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Thomas Beaumont Birkby
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Current-Collector Devices For Electrically Propelled Vehicles
(AREA)
Abstract
5619. Birkby, T. B. March 11. Electric railways and tramways with overhead conductors. Collectors.-To make electrical connection between the trolley head and the conductor passing through the trolley pole, the socket of the trolley head is forced on to a bell or cup A formed of curved strips and fixed to the end D of the conductor by means of the internally-threaded and flanged stud B, C. The edges of the bell or cup A rest against, and are pressed outwards by, a rubber cushion or its equivalent E.
GB190305619D1903-03-111903-03-11Improved Electrical Connection between Terminal and Trolley Head of Electric Tram Cars
ExpiredGB190305619A
(en)