Portable abrading machine with dust collecting system

Claim 1

An abrading machine comprising a hollow case, a rotary motor within said case, an abrading shoe located beneath said case, drive mechanism within said case and connected between said motor and said shoe to cause the latter to move with non-rotary motion relative to said case and said motor, a dust shroud connected to said shoe to move in unison with the shoe, said shroud comprising a top wall located above and spaced upwardly from the top of said shoe and further comprising a skirt depending from said top wall and extending around the outer periphery of said shoe, said skirt being spaced outwardly from the periphery of said shoe whereby abrading dust may pass into said shroud between said skirt and the periphery of said shoe, a hole extending through said top wall of said shroud, a hollow, downwardly opening fitting rigid with and located outside of said case and communicating with said hole, said fitting being sufficiently large to remain in communication with said hole in all positions of said shoe and said shroud, and means on said fitting for receiving a line for creating suction in said fitting and said shroud whereby abrading dust may be sucked into said shroud and passes through said hole and into said fitting and said suction line.