Abstract: The invention relates to an apparatus for reducing overload and dampening collision energy, for instance, in connection with a container crane, the apparatus comprising a movable bar (16) to receive a load and a resistance device (18) against the predetermined resistance of which the movable bar are able to move in a dampening situation, and the resistance device comprise at least one friction device (18) arranged to cooperate with the movable bar (16).

Abstract: A procedure for moving the main girder (3) and trolley (2) of a crane uses a gantry part (6) with its bracing structures and a traversing machinery with traversing ropes (4), the traversing machinery being mounted in conjunction with the gantry part. According to the procedure, the trolley is moved by the same traversing machinery as the main girder. When the main girder (3) is to be moved, the trolley (2) is interlocked so that it remains immovable with respect to the gantry (6) and the traversing movement is performed by winding one of the traversing ropes (4a or 4b) onto the winding drum (1) of the traversing machinery and at the same time unwinding the traversing rope (4b or 4a) on the opposite side from the winding drum (1). When the trolley (2) is to be moved, the trolley interlock is released and the traversing movement is performed in the manner described above.

Abstract: An apparatus for angularly displacing and/or moving a load suspended by ropes, comprising a lifting carriage frame running along a girder carried on running wheels, and rope sheaves for the lifting ropes. In lifting and transporting apparatus of prior art, fine adjustment of the load position was not possible. The problem has been solved with the aid of this invention in that the frame carries a running surface for each rope sheave set, and that the rope sheaves can be moved either together or separately with a separate moving machinery.