Lifting device for handling cut cellular concrete bodies

Claim 1

A lifting device for changing the distance between separate parts of a generally parallelepipedic cellular lightweight concrete body that has been divided by at least one vertically extending cut comprising a generally horizontal frame structure that is vertically movable in relation to a support, from which the cut body may be lifted, a plurality of carriers, each of which has means thereon for gripping a part of the body and for keeping that body part suspended when lifted, means supportingly connecting each of said carriers to said frame structure in a manner to permit guided movements of each and all of the various carriers relative to said supporting frame structure in a predetermined, generally horizontal direction, in which said carriers form a row, and a plurality of actuators for moving said carriers in said predetermined direction, wherein there is one actuator group directly connecting every two adjacent carriers, each such actuator group being operable selectively and independently of all the other groups and without positional reference to said frame structure, and wherein one of said interconnected carriers only is connected to said supporting frame structure by means defining the position of said one carrier relative to said frame structure.