Arrangement for loading and unloading of heavy packages
OwnerPer T. Araltinventor
Life of this patent
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Abstract
An arrangement for the transportation of a heavy package of a vessel to a quay or similar loading location uses a first apparatus for transportation of the package in a vertical direction and a second apparatus for transportation in a horizontal direction. A support member in which the package is placed is alternately raised and lowered by a set of lifting devices. The support member and a support element are also supported separately and alternately on a foundation via climbing arrangements. The support member and support element are moved in a stepwise lifting movement or in a stepwise lowering movement.
Claims6
An arrangement for lifting and lowering a heavy load comprising
- a support member for receiving a heavy load thereon, said member having a main frame and a plurality of support means depending from said frame to support said frame on a foundation;
- a support element for receiving said support means therein;
- a plurality of lifting means between said support member and said support element, each lifting means being secured to said support member and being movable between a retracted position and an extended position to move said member and said element vertically relative to each other;
- a plurality of pairs of hollow support columns for selectively receiving a flowable medium therein;
- and
- a plurality of pairs of support legs, one of said support legs of each pair being secured to said support member and slidably received in a respective one of said support columns and the other of said support legs of each pair being secured to said support element and slidably received in a respective another of said support columns.
Dependencies are inferred from the claim text.