Varitrac Ag

Intertransshipment B.v.

Cornelis Frederikus Poelma

Alexandre Horowitz

Petrus Joseph Verschure

Device for the conveyance of material, in particular bulk material, comprises at least two parallel, mating trough-type conveyor elements which can move lengthwise relative to each other. Each conveyor element has an essentially U-shaped cross section. The open sides of the conveyor elements face each other, with the free edges of the side walls essentially resting against each other, so that a closed conveyance space is produced in the form of an oblong conveyor box. The two conveyor elements are provided with a cyclical drive which acts both transversely to and in the lengthwise direction of the conveyor elements, the drive of the two elements when transverse to the lengthwise direction being in phase, and in the lengthwise direction exhibiting a relative phase shift of about 180 degrees.

Device for the conveyance of bulk material

A hoisting hook for at least four ropes comprising a block, a shaft rotatably supported in said block and a plurality of anchor-like devices rotatably supported in said shaft, so that sufficient degrees of freedom are created for the ropes to divide the hoisting load equally over the ropes.

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Nuenen, Netherlands

Cornelis Frederikus Poelma