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Expired
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Edward Dewhurst
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Individual
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Individual
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Train Traffic Observation, Control, And Security
(AREA)
Current-Collector Devices For Electrically Propelled Vehicles
(AREA)
Abstract
10,991. Dewhurst, E. May 10. Electric contact arrangements, operation of by interaction with passing collectors. - A car entering the section and passing the contactmaker, Fig. 2, puts a metallic bar c, supported on a bar d carried by two ears c sweated to the trolly wire a, in contact with the trolly wire, and thereby energizes the magnet of the signal apparatus.
GB190710991D1907-05-101907-05-10Improvements in or connected with Signalling Devices for Tramways, Railways and the like.
ExpiredGB190710991A
(en)