Mannesmann Aktiengesellschaft

Walter Kollner

Joachim Kroll

Hermann Franzen

Dieter Klessinger

A crane, particularly a railway crane, with a superstructure which is arranged on an undercarriage so as to be swivelable around a vertical axis, a jib and at least one counterweight which is movable as a function of the swiveling movement of the superstructure. The counterweight being arranged on the superstructure. The at least one counterweight is connected with the superstructure via an articulation which has a swivel axis aligned parallel to the vertical axis of the superstructure.

Crane, particularly railway crane

Cranes having multisection booms have an apparatus for interconnecting boom sections mounted at the ends of the boom sections. The apparatus for interconnecting the boom sections has: on a first boom section, an upper hook member with its concave portion being concave inwardly towards a central longitudinal axis of the boom section; on a second boom section, an upper fork member, having a pair of extending flange portions supporting a bolt member for being received within the upper hook member during interconnection; upper abutment surfaces, which are planar and are perpendicular to the central longitudinal axis of the boom sections, and which are located on the end of the upper hook member and between the pair of flanges of the upper fork member; and a lower strap member on a first boom section for being disposed within a lower fork member on a second boom section during interconnection.

Growing community of inventors

Korschenbroich, Germany

Walter Kollner