Abstract: A device for cleaning a horizontal roll turning about its axis, the device being carried and guided by the roll without following the roll in its rotation, being capable of being displaced by sliding along the roll and cleaning the surface of the roll during its sliding by a cleaning mechanism, for example a cutting tool, fixed to the device. The device allows the cleaning of rolls for conveying glass sheet or glass ribbon, particularly those of a lehr downstream of an installation for forming flat glass such as a float glass installation (formed on a bath of molten metal generally based on tin).