Scabbler for scabbling floors contaminated with hazardous materials

Scabbling apparatus comprising:

• a frame having a forward end, a rearward end, an upper surface, a lower surface, a pair of opposed side surfaces and a plurality of spaced openings therethrough;
• a plurality of guides extending upwardly from the upper surface of said frame and having their lower ends secured to said frame;
• a plate disposed above said upper surface, said plate having openings therethrough receiving said guides and being free to slide vertically on said guides;
• a plurality of pneumatically operable scabbling piston and cylinder assemblies having cylinders, reciprocable pistons and scabbling bits, said cylinders being secured to said plate and out-of-contact with said frame, with one of said cylinders nearer the forward end of said frame than others thereof and with the pistons thereof extending through respective ones of said openings on said frame, said pistons having a size smaller than said openings in said frame to permit the free passage of said pistons through said openings and said scabbling bits being disposed below said lower surface of said frame;
• a handle secured to said frame and extending upwardly and rearwardly of said frame for manually moving said apparatus over a surface to be scabbled;
• means for interconnecting said assemblies with a source of air supplying air at a pressure above atmospheric pressure for supplying such air to said assemblies for reciprocating said pistons;
• and
• a tubular vacuum hose connector for receiving a vacuum hose extending from a source of vacuum, said connector extending at least to the bottom of said frame with the bottom end of said connector disposed adjacent to said assemblies for vacuum removal of dust created by operation of said assemblies in a scabbling operation.