Conveyors: power-driven – Conveyor section – Live roll
Patent
1976-02-03
1977-03-22
Cherry, Johnny D.
Conveyors: power-driven
Conveyor section
Live roll
198444, 198789, B65G 1307
Patent
active
040131610
ABSTRACT:
An accumulating roller conveyor comprising a frame, a plurality of longitudinally spaced transversely extending drive rollers rotatably mounted on the frame, a drive extending longitudinally of the frame, and a spring clutch interposed between each drive roller and the drive. A driven roller is rotatably mounted on the frame upstream of each drive roller and an endless belt interconnects the driven and drive roller such that when the drive roller is rotated, the driven roller is rotated. A sensing roller is rotatably mounted on the frame upstream and adjacent each driven roller, and a one-way clutch is provided on each sensing roller. An endless belt interconnects the driven roller and the one-way clutch such that when the driven roller is rotated, the sensing roller is rotated. An endless belt interconnects the sensing roller and the drive roller upstream therefrom such that when a downstream sensing roller is stopped from rotating by the presence of an article thereon, the spring clutch of the drive roller upstream therefrom will be disengaged to stop the drive roller and, in turn, stop the driven roller upstream therefrom, and when a succeeding article engages the previously interrupted article, the upstream sensing roller will stop initiating a sequence to interrupt the drive and driven rollers further upstream, and when the first mentioned article is released, the sensing roller thereunder is permitted to rotate so that the spring clutches and one way clutches are successively engaged upstream.
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patent: 3527586 (1970-09-01), Ritter, Jr.
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patent: 3729088 (1973-04-01), Stein et al.
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patent: 3877565 (1975-04-01), Werntz
American Chain & Cable Company, Inc.
Cherry Johnny D.
Thomson Richard K.
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