US Patent 6964236 Leveling device with an adjustable width

The device relates to a device for leveling the coal filled in the retort of a coke oven, comprising a leveler bar (2) connected with a leveler bar drive (1) that can be moved into and out of the retort (4) through a leveling opening (3), and performs a leveling movement back and forth in the retort (4). According to the invention, the leveler bar (2) has a rake blade (5) on its front end with a width that can be adjusted by an operating device (6) arranged in the leveler bar (2).