Self-separating finishing machine having variable degrees of rotation and vibration, and method

A finishing machine for finishing the surface of unfinished parts with finishing media comprising a housing which is rotatable about a substantially horizontal axis, a finishing chamber in said housing for receiving unfinished parts and finishing media and for finishing of parts when said housing is in a first and finishing position, a storage chamber in said housing adapted to receive finishing media from said finishing chamber when said housing is rotated to a position different from said first position, a foraminous member disposed in said housing for separating finishing media from parts, parts exit means adjacent said foraminous member for exit of finished parts from said machine when said housing is rotated to a position different from said first position, means for rotating said housing about a substantially horizontal axis from one position to another, and means for transfer of finishing media from said storage chamber to said finishing chamber upon return of said housing to said finishing position, characterized in that said housing is rotatable to a second and media-separation position and to a third and parts-ejection position, said positions being separate and independent positions and means for rotating said housing to each of said different positions for Media separation at said record portion and for parts--ejection at said separate third position.