Conveyors: power-driven – Conveyor arrangement for selecting among plural sources or... – By passive material-diverting means placed across the flow path
Patent
1989-09-19
1991-10-08
Valenza, Joseph E.
Conveyors: power-driven
Conveyor arrangement for selecting among plural sources or...
By passive material-diverting means placed across the flow path
1985024, 198805, B65G 4746
Patent
active
050546015
ABSTRACT:
A bundle distribution system comprised of tilt tray carriers coupled in tandem forming a continuous loop, each conveyor being a link in the loop. Vertical and horizontal wheels guide the conveyors along a closed loop path which may include curved and straight sections as well as vertical curves and inclined path sections. Each carrier includs a pivotally mounted tilt tray normally maintained in an upright position. Linear induction motors (LIMs) cooperate with a conductive plate arranged along the underside of each carrier for propulsion. The LIMs are distributed at spaced intervals along the closed loop track, each carrier being a movable element of the motor. The LIMs are operated in parallel and a speed sensor provides feedback for controlling the operating speed to a tolerance of within .+-.5%. The cam follower rollers of a tilting assembly follow a movable tilt cam which initially unlocks the tilting mechanism from the locked position followed by tilting of the carriage about its longitudinal axis. Straightening cams on both sides of the track downstream from the opening cam reset the tilted tray and prevent overshooting. The multi-wheel speed sensor assures rolling engagement of at least two of the sensor wheels with at least one of the carts. A top loader which is positioned above the track so as to minimize the space required therefor, is capable of dropping signature bundles onto the desired tray with great accuracy. The tilting cam likewise assures accurate tilting and release of a bundle upon a branching out feed chute.
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Houseman J. D.
Paets Henri T.
Sjogren Christer A.
Quipp Incorporated
Valenza Joseph E.
Weinstein Louis
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