Railways – Car-carried propulsion system – Electric
Patent
1989-07-03
1990-08-28
Olszewski, Robert P.
Railways
Car-carried propulsion system
Electric
104288, 246122R, 246187R, 191 33R, B61L 1500
Patent
active
049515748
ABSTRACT:
A conveyor system comprises a conveyor rail and an automotive cart which travels along the conveyor rail. The automotive cart obtains power for travel from power supply rails installed in the conveyor rail. The automotive cart has a first signal receiving member for stop signal and a first signal transmitting member for automotive cart signal. The rail has a second signal transmitting member for the stop signal and a second signal receiving member for the automotive cart signal located at suitable positions on the rail. The automotive cart transmits and receives control signals for its travel by means of their signal transmitting members and signal receiving members. The first signal receiving member on the automotive cart is a magnetic sensor, while the second signal transmitting member comprises an electromagnet. The electromagnet includes magnetic pole plates having along the conveyor rail a length which is almost the same as or longer than the brake distance of the automotive cart.
REFERENCES:
patent: 3085646 (1963-04-01), Paufve
patent: 3284614 (1966-11-01), Bramer
patent: 3408646 (1968-10-01), Simon et al.
patent: 4480157 (1984-10-01), Ishikura et al.
patent: 4570543 (1986-02-01), Ishikura et al.
patent: 4700024 (1987-10-01), Hasselmann et al.
patent: 4811667 (1989-03-01), Morishita et al.
Daifuku Co. Ltd.
Le Mark T.
Olszewski Robert P.
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