Railways – Traction – Chain
Patent
1995-06-01
1996-07-02
Tudor, Harold J.
Railways
Traction
Chain
246169R, B61B 300
Patent
active
H00015563
ABSTRACT:
In a power and free conveyor system that includes a trolley frame having spaced pairs of load wheels supporting the trolley frame for movement in a longitudinal direction along a track and a spaced pair of guide wheels for maintaining orientation of the frame with respect to the center of the track, a system for monitoring operative condition of the trolley load and guide wheels. A pair of first sensors are respectively disposed on opposed sides of the track and responsive to sequential passage of a corresponding pair of load wheels for generating first electrical signal patterns as a function thereof. A plurality of second sensors are mounted adjacent to the track and responsive to passage of the pair of guide wheels for generating second electrical signal patterns as a function thereof. A fundamental mode asynchronous machine performs pattern recognition analysis on the first and second signal patterns to determine operative condition of the load and guide wheels in real time.
REFERENCES:
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patent: 4245562 (1981-01-01), Knudsen
patent: 4702104 (1987-10-01), Hallberg
patent: 4936529 (1990-06-01), Maine
patent: 5133521 (1992-07-01), Gutauskas
patent: 5368260 (1994-11-01), Izbinsky et al.
Noel et al., "Detection of Defective Carrier Trolleys Utilizing a PLC Realizing a Sequential Finite State Machine for Pattern Recognition", IEEE Publication CH3381-Jan. 1993, pp. 48-51.
Chrysler Corporation
Tudor Harold J.
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