Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent
1992-02-28
1993-03-16
Werner, Frank E.
Material or article handling
Self-loading or unloading vehicles
Conveyor
414528, 414687, 4147442, 212245, 198317, 1988615, B60P 136
Patent
active
051939711
ABSTRACT:
This invention relates to an improvement over a prior art mobile hydraulic conveyor apparatus which is mounted on the rear end of a truck for both vertical and lateral pivoting, as well as vertical storage for transport to different locations. The apparatus is moved vertically by a block and tackle arrangement under hydraulic control. Lateral pivoting is achieved by activation of a pair of hydraulic cylinders which act on the conveyor apparatus to shift the apparatus laterally about a pivot axis extending centrally through a turret connected to the conveyor apparatus and mounted on a turret holder which in turn is pivotally mounted on the rear end of the truck. The turret holder includes a c-ring which is mounted in a circumferential groove formed on the turret. The conveyor apparatus includes two pivotally connected trays which support a hydraulically driven belt which transports material dispersed from the truck to a selected location. During transport the trays may be pivoted upwardly in a folded position by providing hydraulic power to the block and tackle arrangement.
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patent: 4834463 (1989-05-01), Nye
patent: 5044867 (1991-09-01), Pettijohn
Litman Richard C.
Werner Frank E.
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