Terrazzo floor surfacing machine

An apparatus for finishing terrazzo surfaces and the like comprising

• a main frame;
• motor drive means mounted on said main frame for rotatably driving a crush grinder assembly;
• a crush grinder assembly drivingly connected to said motor drive means, said crush grinder assembly including
• a pair of coaxially disposed and interconnected three-arm spiders,
• a flexible coupling interconnecting said pair of spiders for allowing planar flexibility therebetween,
• a crush grinder cluster connected to the end of each spider arm,
• each of said crush grinder clusters including a disc support bracket and plurality of cutting discs rotatably supported on a common axis in said disc support bracket, and
• said cutting discs being adapted to rotate freely on said common axis independently of the other cutting discs in the cluster.

An apparatus for finishing terrazzo surfaces and the like comprising;

• a main frame;
• a bearing housing supported on said main frame;
• an intermediate drive shaft rotatably supported in said bearing housing;
• a gear motor mounted on said bearing housing for rotatably driving a crush grinder assembly;
• a crush grinder assembly connected to said intermediate drive shaft, said crush grinder assembly including
• a pair of coaxially disposed and interconnected three-arm spiders,
• a flexible coupling interconnecting said two spiders, said flexible coupling being effective to allow planar flexibility between said two spiders,
• a crush grinder cluster connected to the end of each spider arm,
• each of said crush grinder clusters including a plurality of cutting discs,
• said cutting discs being arranged in a cluster on an axis substantially parallel to the radius of the spider arm to which said crush grinder assembly is connected.