Scabbler bit floor surfacing machine
AssigneesDavid Thomson Allan, John MacDonald & Co. (Pneumatic Tools) Ltd.
InventorDavid T. Allan
Life of this patent
Estimating the term…
Abstract
A scabbler machine for breaking concrete etc. having a number of scabbling bits made up of a shank for connection to the reciprocal piston of the scabbler machine and a head provided with tungsten carbide, or like, cutting members. To ensure complete scabbling of the surface to be treated the head of the scabbling bits have portions which overlie portions of other bits so that the bits overlap one another in the direction of movement of the scabbler machine over the surface to be treated.
Claims5
A scabbler machine having at least one pair of scabbling bits, said bits being aligned in a direction perpendicular to the path of movement of the scabbler machine, each bit having a shank for connection to the reciprocal piston of the scabbler machine and a head provided with tungsten carbide or like, cutting members, the head of one bit of said pair having a portion which overlies a portion of the other bit of said pair so that the bits of said pair overlap one another in the direction of movement of the scabbler machine over the surface to be treated.
Dependencies are inferred from the claim text.