Conveyors: power-driven – Conveyor section – Live roll
Patent
1994-08-02
1996-05-07
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Live roll
193 35TE, 209668, 74 8915, 744248R, B65G 1312
Patent
active
055137415
ABSTRACT:
A proportional spacing mechanism proportionally spaces objects from a reference position on a fixed support frame. At least one supplemental drive mechanism assists the proportional spacing mechanism in moving the coupling elements and respective objects relative to each other for proportional spacing from the reference position. The supplemental drive mechanism incorporates a first portion coupled to a coupling element spaced from the reference position. A second portion of the supplemental drive mechanism is coupled to the fixed support frame. The supplemental drive mechanism extends and retracts the distance between the first and second portions for assisting motion of the coupling elements and respective objects during rotation of the shaft and crank of the proportional spacing mechanism. Various supplemental drive mechanisms are described including a chain and sprocket drive, a cylinder and piston drive, and a screw drive mechanism. The invention is applied in a roller conveyor apparatus to assist the proportional spacing of the rollers or spools which form the roller conveyor surface of the roller conveyor bed. The roller conveyor apparatus is used for example in a produce sizer or sorting machine.
REFERENCES:
patent: 4372219 (1983-02-01), Gibbs
patent: 4405050 (1983-09-01), Fenton et al.
patent: 4979624 (1990-12-01), Ellis
patent: 5012688 (1991-05-01), Ellis
patent: 5425459 (1995-06-01), Ellis et al.
Ellis Farms, Inc.
Kane, Jr. Daniel H.
Valenza Joseph E.
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