Crane crosshead assembly mounted on a pedestal

In a crane having a boom adapted to be mounted on a pedestal, the pedestal having an upper end, a crane mounting system comprising:

• a crosshead assembly for connection to the crane boom and adapted to be rotatively mounted in proximity to the upper end of the pedestal;
• bearing means with the upper end of the pedestal for allowing rotation of said crosshead assembly about the longitudinal axis of the pedestal, said bearing means including a pair of arcuate sections mounted with the upper end of the pedestal in spaced relationship from the longitudinal axis of the pedestal at the upper end of the pedestal for providing for limited lateral and pivotal movement of said crosshead assembly relative to the longitudinal axis of the pedestal;
• a support column mounted with the upper end of the pedestal and extending upwardly therefrom, with the longitudinal axis of said support column being in substantial alignment with the longitudinal axis of the pedestal, said support column being receivably mounted between said arcuate sections, said crosshead assembly being rotatably mounted about said support column;
• and,
• a substantially rectangular mounting plate for mounting said arcuate sections therewith and having an opening formed centrally thereof, said plate adapted to be disposed about said support column with said support column being within said opening of said mounting plate, said mounting plate being mounted within a rectangular opening centrally formed in said crosshead assembly for limited lateral movement of said crosshead assembly with respect to the pedestal.