Electricity: transmission to vehicles – Collectors – Trolley
Patent
1978-07-11
1980-05-13
Robinson, Thomas A.
Electricity: transmission to vehicles
Collectors
Trolley
191 10, H04B 500
Patent
active
042030102
ABSTRACT:
Data and speech are transmitted along an elongate member from a transmitter to a receiver. Toroids are used to effect a low frequency coupling between the transceivers and the elongate member. The toroids are segmented and their windings are such as to form part of a resonant circuit as well as being arranged around the segments such that external fields are cancelled. Protective shrouds are arranged around at least part of the toroids.
REFERENCES:
patent: 1098528 (1914-06-01), Reineke
patent: 1375675 (1921-04-01), Colpitts
patent: 2865086 (1958-12-01), Whipple
patent: 3448421 (1969-06-01), Berg et al.
patent: 4099022 (1978-07-01), Fullerton et al.
patent: 4113985 (1978-09-01), Day
Coal Industry (Patents) Limited
Robinson Thomas A.
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